#1515 Updates version to 0.6.0 alpha 5 (#1516)

Co-authored-by: Dennis Sheirer <dsheirer@github.com>

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,38 @@
+---
+name: Bug Report
+about: Create a report to help us improve sdrtrunk
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**sdrtrunk Version**
+Indicate which sdrtrunk version you are using.  Use 'master-branch' if you are running the latest code.
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Application Log**
+If applicable, include either the full application log,or a snippet of the error logging.
+
+**Desktop (optional - complete the following information):**
+ - OS: [e.g. iOS]
+ - CPU Cores: [e.g. 4 cores]
+ - RAM:[e.g. 16GB]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: feature
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/how-to-question-or-does-the-software-support-xxx.md

@@ -0,0 +1,16 @@
+---
+name: How-To Question or Does The Software Support xxx
+about: End user question or support discussion
+title: STOP - Don't Use Issue Reporting to Post End-User Questions!!!
+labels: ''
+assignees: ''
+
+---
+
+STOP !!!!
+
+GitHub issues are for reporting software bugs or requesting enhancements.
+
+If you have a question about how to use the software, or if you want to know if sdrtrunk supports a protocol, tuner, or other aspect, please post your question in one of the Support forums.
+
+Visit: https://github.com/DSheirer/sdrtrunk/wiki

.github/workflows/gradle.yml

@@ -22,10 +22,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 17
+      - name: Set up JDK 19
         uses: actions/setup-java@v2
         with:
-          java-version: '17'
+          java-version: '19'
           distribution: 'liberica'
           java-package: 'jdk+fx'
       - name: Build with Gradle

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="liberica-19.0.1.fx" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19_PREVIEW" project-jdk-name="liberica-19.0.1.fx" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

artifacts/sdrplay-api-headers/README.txt

@@ -0,0 +1,36 @@
+Auto-generating Java code from SDRPlay API using jextract.
+
+Note: the api headers in the 3.11 folder are equivalent to the 3.08 headers.  The only
+difference from the 3.07 headers is the addition of the boolean 'valid' flag to DeviceT structure.
+
+1. Download JDK19 compatible build of jextract JDK: https://jdk.java.net/jextract/
+2. If generating on windows platform, modify the sdrplay_api.h to remove the windows
+   pieces of the file.  Specifically:
+2a. Comment out these lines but leave the *HANDLE typedef:
+
+//#if defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+2b. Remove the '_SDRPLAY_DLL_QUALIFIER' from in front of the method declarations
+
+2c. Change the 3.11 version string to 3.08 either in the header file, or in the generated java class
+
+3. Open command prompt to the root source code where the generated files should be placed:
+..\SDRtrunk\sdrplay-api\src\main\java
+
+4. Generate the code:
+c:\Users\Denny\Downloads\jdk-19-ea2-panama\bin\jextract "C:\Users\Denny\git\sdrtrunk\sdrplay-api\api\v3_11\sdrplay_api.h" -l libsdrplay_api --source
+
+5. Do this for all versions of the API.
+

artifacts/sdrplay-api-headers/v3_07/sdrplay_api.h

@@ -0,0 +1,229 @@
+#ifndef SDRPLAY_API_H
+#define SDRPLAY_API_H
+
+#include "sdrplay_api_dev.h"
+#include "sdrplay_api_rx_channel.h"
+#include "sdrplay_api_callback.h"
+
+//#if defined(_M_X64) || defined(_M_IX86)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+// Application code should check that it is compiled against the same API version
+// sdrplay_api_ApiVersion() returns the API version 
+#define SDRPLAY_API_VERSION                   (float)(3.07)
+
+// API Constants
+#define SDRPLAY_MAX_DEVICES                   (16)
+#define SDRPLAY_MAX_TUNERS_PER_DEVICE         (2)
+
+#define SDRPLAY_MAX_SER_NO_LEN                (64)
+#define SDRPLAY_MAX_ROOT_NM_LEN               (32)
+
+#define SDRPLAY_RSP1_ID                       (1)
+#define SDRPLAY_RSP1A_ID                      (255)
+#define SDRPLAY_RSP2_ID                       (2)
+#define SDRPLAY_RSPduo_ID                     (3)
+#define SDRPLAY_RSPdx_ID                      (4)
+
+// Enum types
+typedef enum
+{
+    sdrplay_api_Success               = 0,
+    sdrplay_api_Fail                  = 1,
+    sdrplay_api_InvalidParam          = 2,
+    sdrplay_api_OutOfRange            = 3,
+    sdrplay_api_GainUpdateError       = 4,
+    sdrplay_api_RfUpdateError         = 5,
+    sdrplay_api_FsUpdateError         = 6,
+    sdrplay_api_HwError               = 7,
+    sdrplay_api_AliasingError         = 8,
+    sdrplay_api_AlreadyInitialised    = 9,
+    sdrplay_api_NotInitialised        = 10,
+    sdrplay_api_NotEnabled            = 11,
+    sdrplay_api_HwVerError            = 12,
+    sdrplay_api_OutOfMemError         = 13,
+    sdrplay_api_ServiceNotResponding  = 14,
+    sdrplay_api_StartPending          = 15,
+    sdrplay_api_StopPending           = 16,
+    sdrplay_api_InvalidMode           = 17,
+    sdrplay_api_FailedVerification1   = 18,
+    sdrplay_api_FailedVerification2   = 19,
+    sdrplay_api_FailedVerification3   = 20,
+    sdrplay_api_FailedVerification4   = 21,
+    sdrplay_api_FailedVerification5   = 22,
+    sdrplay_api_FailedVerification6   = 23,
+    sdrplay_api_InvalidServiceVersion = 24
+} sdrplay_api_ErrT;
+
+typedef enum
+{
+    sdrplay_api_Update_None                        = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_Dev_Fs                      = 0x00000001,
+    sdrplay_api_Update_Dev_Ppm                     = 0x00000002,
+    sdrplay_api_Update_Dev_SyncUpdate              = 0x00000004,
+    sdrplay_api_Update_Dev_ResetFlags              = 0x00000008,
+
+    sdrplay_api_Update_Rsp1a_BiasTControl          = 0x00000010,
+    sdrplay_api_Update_Rsp1a_RfNotchControl        = 0x00000020,
+    sdrplay_api_Update_Rsp1a_RfDabNotchControl     = 0x00000040,
+
+    sdrplay_api_Update_Rsp2_BiasTControl           = 0x00000080,
+    sdrplay_api_Update_Rsp2_AmPortSelect           = 0x00000100,
+    sdrplay_api_Update_Rsp2_AntennaControl         = 0x00000200,
+    sdrplay_api_Update_Rsp2_RfNotchControl         = 0x00000400,
+    sdrplay_api_Update_Rsp2_ExtRefControl          = 0x00000800,
+
+    sdrplay_api_Update_RspDuo_ExtRefControl        = 0x00001000,
+
+    sdrplay_api_Update_Master_Spare_1              = 0x00002000,
+    sdrplay_api_Update_Master_Spare_2              = 0x00004000,
+
+    // Reasons for master and slave mode
+    // Note: sdrplay_api_Update_Tuner_Gr MUST be the first value defined in this section!
+    sdrplay_api_Update_Tuner_Gr                    = 0x00008000,
+    sdrplay_api_Update_Tuner_GrLimits              = 0x00010000,
+    sdrplay_api_Update_Tuner_Frf                   = 0x00020000,
+    sdrplay_api_Update_Tuner_BwType                = 0x00040000,
+    sdrplay_api_Update_Tuner_IfType                = 0x00080000,
+    sdrplay_api_Update_Tuner_DcOffset              = 0x00100000,
+    sdrplay_api_Update_Tuner_LoMode                = 0x00200000,
+
+    sdrplay_api_Update_Ctrl_DCoffsetIQimbalance    = 0x00400000,
+    sdrplay_api_Update_Ctrl_Decimation             = 0x00800000,
+    sdrplay_api_Update_Ctrl_Agc                    = 0x01000000,
+    sdrplay_api_Update_Ctrl_AdsbMode               = 0x02000000,
+    sdrplay_api_Update_Ctrl_OverloadMsgAck         = 0x04000000,
+
+    sdrplay_api_Update_RspDuo_BiasTControl         = 0x08000000,
+    sdrplay_api_Update_RspDuo_AmPortSelect         = 0x10000000,
+    sdrplay_api_Update_RspDuo_Tuner1AmNotchControl = 0x20000000,
+    sdrplay_api_Update_RspDuo_RfNotchControl       = 0x40000000,
+    sdrplay_api_Update_RspDuo_RfDabNotchControl    = 0x80000000,
+} sdrplay_api_ReasonForUpdateT;
+
+typedef enum
+{
+    sdrplay_api_Update_Ext1_None                   = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_RspDx_HdrEnable             = 0x00000001,
+    sdrplay_api_Update_RspDx_BiasTControl          = 0x00000002,
+    sdrplay_api_Update_RspDx_AntennaControl        = 0x00000004,
+    sdrplay_api_Update_RspDx_RfNotchControl        = 0x00000008,
+    sdrplay_api_Update_RspDx_RfDabNotchControl     = 0x00000010,
+    sdrplay_api_Update_RspDx_HdrBw                 = 0x00000020,
+
+    // Reasons for master and slave mode
+} sdrplay_api_ReasonForUpdateExtension1T;
+
+typedef enum
+{
+    sdrplay_api_DbgLvl_Disable       = 0,
+    sdrplay_api_DbgLvl_Verbose       = 1,
+    sdrplay_api_DbgLvl_Warning       = 2,
+    sdrplay_api_DbgLvl_Error         = 3,
+    sdrplay_api_DbgLvl_Message       = 4,
+} sdrplay_api_DbgLvl_t;
+
+// Device structure 
+typedef struct 
+{
+    char SerNo[SDRPLAY_MAX_SER_NO_LEN];
+    unsigned char hwVer;
+    sdrplay_api_TunerSelectT tuner;
+    sdrplay_api_RspDuoModeT rspDuoMode;
+    double rspDuoSampleFreq;
+    HANDLE dev;
+} sdrplay_api_DeviceT;
+
+// Device parameter structure
+typedef struct 
+{
+    sdrplay_api_DevParamsT       *devParams;
+    sdrplay_api_RxChannelParamsT *rxChannelA;
+    sdrplay_api_RxChannelParamsT *rxChannelB;
+} sdrplay_api_DeviceParamsT;
+
+// Extended error message structure
+typedef struct 
+{
+    char file[256];
+    char function[256];
+    int  line;
+    char message[1024];
+} sdrplay_api_ErrorInfoT;
+
+// Comman API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_Open_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_Close_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ApiVersion_t)(float *apiVer);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_LockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_UnlockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDevices_t)(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_SelectDevice_t)(sdrplay_api_DeviceT *device);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ReleaseDevice_t)(sdrplay_api_DeviceT *device);    
+typedef const char*             (*sdrplay_api_GetErrorString_t)(sdrplay_api_ErrT err);
+typedef sdrplay_api_ErrorInfoT* (*sdrplay_api_GetLastError_t)(sdrplay_api_DeviceT *device);
+typedef sdrplay_api_ErrT        (*sdrplay_api_DisableHeartbeat_t)(void);
+
+// Device API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_DebugEnable_t)(HANDLE dev, sdrplay_api_DbgLvl_t dbgLvl); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDeviceParams_t)(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Init_t)(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Uninit_t)(HANDLE dev);
+typedef sdrplay_api_ErrT        (*sdrplay_api_Update_t)(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoActiveTuner_t)(HANDLE dev, sdrplay_api_TunerSelectT *tuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoDualTunerModeSampleRate_t)(double *currentSampleRate);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoMode_t)(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+// API function definitions
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    // Comman API function definitions
+    sdrplay_api_ErrT        sdrplay_api_Open(void);
+    sdrplay_api_ErrT        sdrplay_api_Close(void);
+    sdrplay_api_ErrT        sdrplay_api_ApiVersion(float *apiVer);
+    sdrplay_api_ErrT        sdrplay_api_LockDeviceApi(void);
+    sdrplay_api_ErrT        sdrplay_api_UnlockDeviceApi(void);
+    sdrplay_api_ErrT        sdrplay_api_GetDevices(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);
+    sdrplay_api_ErrT        sdrplay_api_SelectDevice(sdrplay_api_DeviceT *device);
+    sdrplay_api_ErrT        sdrplay_api_ReleaseDevice(sdrplay_api_DeviceT *device);
+    const char*             sdrplay_api_GetErrorString(sdrplay_api_ErrT err);
+    sdrplay_api_ErrorInfoT* sdrplay_api_GetLastError(sdrplay_api_DeviceT *device);
+    sdrplay_api_ErrT        sdrplay_api_DisableHeartbeat(void); // Must be called before sdrplay_api_SelectDevice()
+
+    // Device API function definitions
+    sdrplay_api_ErrT        sdrplay_api_DebugEnable(HANDLE dev, sdrplay_api_DbgLvl_t enable);
+    sdrplay_api_ErrT        sdrplay_api_GetDeviceParams(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams);
+    sdrplay_api_ErrT        sdrplay_api_Init(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext);
+    sdrplay_api_ErrT        sdrplay_api_Uninit(HANDLE dev);
+    sdrplay_api_ErrT        sdrplay_api_Update(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoActiveTuner(HANDLE dev, sdrplay_api_TunerSelectT *currentTuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoDualTunerModeSampleRate(HANDLE dev, double *currentSampleRate);
+    sdrplay_api_ErrT        sdrplay_api_SwapRspDuoMode(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                              sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                              sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //SDRPLAY_API_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_callback.h

@@ -0,0 +1,78 @@
+#ifndef SDRPLAY_API_CALLBACK_H
+#define SDRPLAY_API_CALLBACK_H
+
+// Event callback enums
+typedef enum
+{
+    sdrplay_api_Overload_Detected     = 0,
+    sdrplay_api_Overload_Corrected    = 1,
+} sdrplay_api_PowerOverloadCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_MasterInitialised      = 0,
+    sdrplay_api_SlaveAttached          = 1,
+    sdrplay_api_SlaveDetached          = 2,
+    sdrplay_api_SlaveInitialised       = 3,
+    sdrplay_api_SlaveUninitialised     = 4,
+    sdrplay_api_MasterDllDisappeared   = 5,
+    sdrplay_api_SlaveDllDisappeared    = 6,
+} sdrplay_api_RspDuoModeCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_GainChange            = 0,
+    sdrplay_api_PowerOverloadChange   = 1,
+    sdrplay_api_DeviceRemoved         = 2,
+    sdrplay_api_RspDuoModeChange      = 3,
+} sdrplay_api_EventT;
+
+// Event callback parameter structs
+typedef struct 
+{
+    unsigned int gRdB;
+    unsigned int lnaGRdB;
+    double currGain;
+} sdrplay_api_GainCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_PowerOverloadCbEventIdT powerOverloadChangeType;
+} sdrplay_api_PowerOverloadCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_RspDuoModeCbEventIdT modeChangeType;
+} sdrplay_api_RspDuoModeCbParamT;
+
+// Event parameters overlay
+typedef union
+{
+    sdrplay_api_GainCbParamT          gainParams;
+    sdrplay_api_PowerOverloadCbParamT powerOverloadParams;
+    sdrplay_api_RspDuoModeCbParamT    rspDuoModeParams;
+} sdrplay_api_EventParamsT;
+
+// Stream callback parameter structs
+typedef struct 
+{
+    unsigned int firstSampleNum;
+    int grChanged;
+    int rfChanged;
+    int fsChanged;
+    unsigned int numSamples;
+} sdrplay_api_StreamCbParamsT;
+
+// Callback function prototypes
+typedef void (*sdrplay_api_StreamCallback_t)(short *xi, short *xq, sdrplay_api_StreamCbParamsT *params, unsigned int numSamples, unsigned int reset, void *cbContext); 
+typedef void (*sdrplay_api_EventCallback_t)(sdrplay_api_EventT eventId, sdrplay_api_TunerSelectT tuner, sdrplay_api_EventParamsT *params, void *cbContext); 
+
+// Callback function struct
+typedef struct 
+{
+    sdrplay_api_StreamCallback_t StreamACbFn;
+    sdrplay_api_StreamCallback_t StreamBCbFn;
+    sdrplay_api_EventCallback_t  EventCbFn;
+} sdrplay_api_CallbackFnsT;
+
+#endif //SDRPLAY_API_CALLBACK_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_control.h

@@ -0,0 +1,55 @@
+#ifndef SDRPLAY_API_CONTROL_H
+#define SDRPLAY_API_CONTROL_H
+
+// Control parameter enums
+typedef enum
+{
+    sdrplay_api_AGC_DISABLE  = 0,
+    sdrplay_api_AGC_100HZ    = 1,
+    sdrplay_api_AGC_50HZ     = 2,
+    sdrplay_api_AGC_5HZ      = 3,
+    sdrplay_api_AGC_CTRL_EN  = 4
+} sdrplay_api_AgcControlT;
+
+typedef enum
+{
+    sdrplay_api_ADSB_DECIMATION                  = 0,
+    sdrplay_api_ADSB_NO_DECIMATION_LOWPASS       = 1,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_2MHZ = 2,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_3MHZ = 3
+} sdrplay_api_AdsbModeT;
+
+// Control parameter structs
+typedef struct 
+{
+    unsigned char DCenable;          // default: 1
+    unsigned char IQenable;          // default: 1
+} sdrplay_api_DcOffsetT;
+
+typedef struct 
+{
+    unsigned char enable;            // default: 0
+    unsigned char decimationFactor;  // default: 1
+    unsigned char wideBandSignal;    // default: 0
+} sdrplay_api_DecimationT;
+
+typedef struct 
+{
+    sdrplay_api_AgcControlT enable;    // default: sdrplay_api_AGC_50HZ
+    int setPoint_dBfs;                 // default: -60
+    unsigned short attack_ms;          // default: 0
+    unsigned short decay_ms;           // default: 0
+    unsigned short decay_delay_ms;     // default: 0
+    unsigned short decay_threshold_dB; // default: 0
+    int syncUpdate;                    // default: 0
+} sdrplay_api_AgcT;
+
+typedef struct 
+{
+    sdrplay_api_DcOffsetT dcOffset;
+    sdrplay_api_DecimationT decimation;
+    sdrplay_api_AgcT agc;
+    sdrplay_api_AdsbModeT adsbMode;  //default: sdrplay_api_ADSB_DECIMATION
+} sdrplay_api_ControlParamsT;
+
+#endif //SDRPLAY_API_CONTROL_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_dev.h

@@ -0,0 +1,51 @@
+#ifndef SDRPLAY_API_DEV_H
+#define SDRPLAY_API_DEV_H
+
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+// Dev parameter enums
+typedef enum
+{
+    sdrplay_api_ISOCH = 0,
+    sdrplay_api_BULK  = 1
+} sdrplay_api_TransferModeT;
+
+// Dev parameter structs
+typedef struct 
+{
+    double fsHz;                        // default: 2000000.0
+    unsigned char syncUpdate;           // default: 0
+    unsigned char reCal;                // default: 0
+} sdrplay_api_FsFreqT;
+
+typedef struct 
+{
+    unsigned int sampleNum;             // default: 0
+    unsigned int period;                // default: 0
+} sdrplay_api_SyncUpdateT;
+
+typedef struct 
+{
+    unsigned char resetGainUpdate;      // default: 0
+    unsigned char resetRfUpdate;        // default: 0
+    unsigned char resetFsUpdate;        // default: 0
+} sdrplay_api_ResetFlagsT;   
+
+typedef struct 
+{
+    double ppm;                         // default: 0.0
+    sdrplay_api_FsFreqT fsFreq;
+    sdrplay_api_SyncUpdateT syncUpdate; 
+    sdrplay_api_ResetFlagsT resetFlags; 
+    sdrplay_api_TransferModeT mode;     // default: sdrplay_api_ISOCH
+    unsigned int samplesPerPkt;         // default: 0 (output param)
+    sdrplay_api_Rsp1aParamsT rsp1aParams;
+    sdrplay_api_Rsp2ParamsT rsp2Params;
+    sdrplay_api_RspDuoParamsT rspDuoParams;
+    sdrplay_api_RspDxParamsT rspDxParams;
+} sdrplay_api_DevParamsT;
+
+#endif //SDRPLAY_API_DEV_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rsp1a.h

@@ -0,0 +1,22 @@
+#ifndef SDRPLAY_API_RSP1A_H
+#define SDRPLAY_API_RSP1A_H
+
+#define RSPIA_NUM_LNA_STATES         10
+#define RSPIA_NUM_LNA_STATES_AM      7
+#define RSPIA_NUM_LNA_STATES_LBAND   9
+
+// RSP1A parameter enums
+
+// RSP1A parameter structs
+typedef struct 
+{
+    unsigned char rfNotchEnable;                              // default: 0
+    unsigned char rfDabNotchEnable;                           // default: 0
+} sdrplay_api_Rsp1aParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+} sdrplay_api_Rsp1aTunerParamsT;
+
+#endif //SDRPLAY_API_RSP1A_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rsp2.h

@@ -0,0 +1,35 @@
+#ifndef SDRPLAY_API_RSP2_H
+#define SDRPLAY_API_RSP2_H
+
+#define RSPII_NUM_LNA_STATES         9
+#define RSPII_NUM_LNA_STATES_AMPORT  5
+#define RSPII_NUM_LNA_STATES_420MHZ  6
+
+// RSP2 parameter enums
+typedef enum
+{
+    sdrplay_api_Rsp2_ANTENNA_A = 5,
+    sdrplay_api_Rsp2_ANTENNA_B = 6,
+} sdrplay_api_Rsp2_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_Rsp2_AMPORT_1 = 1,
+    sdrplay_api_Rsp2_AMPORT_2 = 0,
+} sdrplay_api_Rsp2_AmPortSelectT;
+
+// RSP2 parameter structs
+typedef struct 
+{
+    unsigned char extRefOutputEn;                // default: 0
+} sdrplay_api_Rsp2ParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+    sdrplay_api_Rsp2_AmPortSelectT amPortSel;    // default: sdrplay_api_Rsp2_AMPORT_2
+    sdrplay_api_Rsp2_AntennaSelectT antennaSel;  // default: sdrplay_api_Rsp2_ANTENNA_A
+    unsigned char rfNotchEnable;                 // default: 0
+} sdrplay_api_Rsp2TunerParamsT;
+
+#endif //SDRPLAY_API_RSP2_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rspDuo.h

@@ -0,0 +1,40 @@
+#ifndef SDRPLAY_API_RSPduo_H
+#define SDRPLAY_API_RSPduo_H
+
+#define RSPDUO_NUM_LNA_STATES         10
+#define RSPDUO_NUM_LNA_STATES_AMPORT  5
+#define RSPDUO_NUM_LNA_STATES_AM      7
+#define RSPDUO_NUM_LNA_STATES_LBAND   9
+
+// RSPduo parameter enums
+typedef enum
+{
+    sdrplay_api_RspDuoMode_Unknown      = 0,
+    sdrplay_api_RspDuoMode_Single_Tuner = 1,
+    sdrplay_api_RspDuoMode_Dual_Tuner   = 2,
+    sdrplay_api_RspDuoMode_Master       = 4,
+    sdrplay_api_RspDuoMode_Slave        = 8,
+} sdrplay_api_RspDuoModeT;
+
+typedef enum
+{
+    sdrplay_api_RspDuo_AMPORT_1 = 1,
+    sdrplay_api_RspDuo_AMPORT_2 = 0,
+} sdrplay_api_RspDuo_AmPortSelectT;
+
+// RSPduo parameter structs
+typedef struct 
+{
+    int extRefOutputEn;                             // default: 0
+} sdrplay_api_RspDuoParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                      // default: 0
+    sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel; // default: sdrplay_api_RspDuo_AMPORT_2
+    unsigned char tuner1AmNotchEnable;              // default: 0
+    unsigned char rfNotchEnable;                    // default: 0
+    unsigned char rfDabNotchEnable;                 // default: 0
+} sdrplay_api_RspDuoTunerParamsT;
+
+#endif //SDRPLAY_API_RSPduo_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rspDx.h

@@ -0,0 +1,45 @@
+#ifndef SDRPLAY_API_RSPDX_H
+#define SDRPLAY_API_RSPDX_H
+
+#include "sdrplay_api_tuner.h"
+
+#define RSPDX_NUM_LNA_STATES               28   // Number of LNA states in all bands (except where defined differently below)
+#define RSPDX_NUM_LNA_STATES_AMPORT2_0_12  19   // Number of LNA states when using AM Port 2 between 0 and 12MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_12_60 20   // Number of LNA states when using AM Port 2 between 12 and 60MHz
+#define RSPDX_NUM_LNA_STATES_VHF_BAND3     27   // Number of LNA states in VHF and Band3
+#define RSPDX_NUM_LNA_STATES_420MHZ        21   // Number of LNA states in 420MHz band
+#define RSPDX_NUM_LNA_STATES_LBAND         19   // Number of LNA states in L-band
+#define RSPDX_NUM_LNA_STATES_DX            26   // Number of LNA states in DX path
+
+// RSPdx parameter enums
+typedef enum
+{
+    sdrplay_api_RspDx_ANTENNA_A = 0,
+    sdrplay_api_RspDx_ANTENNA_B = 1,
+    sdrplay_api_RspDx_ANTENNA_C = 2,
+} sdrplay_api_RspDx_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_RspDx_HDRMODE_BW_0_200  = 0,
+    sdrplay_api_RspDx_HDRMODE_BW_0_500  = 1,
+    sdrplay_api_RspDx_HDRMODE_BW_1_200  = 2,
+    sdrplay_api_RspDx_HDRMODE_BW_1_700  = 3,
+} sdrplay_api_RspDx_HdrModeBwT;
+
+// RSPdx parameter structs
+typedef struct 
+{
+    unsigned char hdrEnable;                            // default: 0
+    unsigned char biasTEnable;                          // default: 0
+    sdrplay_api_RspDx_AntennaSelectT antennaSel;        // default: sdrplay_api_RspDx_ANTENNA_A
+    unsigned char rfNotchEnable;                        // default: 0
+    unsigned char rfDabNotchEnable;                     // default: 0
+} sdrplay_api_RspDxParamsT;
+
+typedef struct 
+{
+    sdrplay_api_RspDx_HdrModeBwT hdrBw;                 // default: sdrplay_api_RspDx_HDRMODE_BW_1_700
+} sdrplay_api_RspDxTunerParamsT;
+
+#endif //SDRPLAY_API_RSPDX_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_rx_channel.h

@@ -0,0 +1,21 @@
+#ifndef SDRPLAY_API_RX_CHANNEL_H
+#define SDRPLAY_API_RX_CHANNEL_H
+
+#include "sdrplay_api_tuner.h"
+#include "sdrplay_api_control.h"
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+typedef struct 
+{
+    sdrplay_api_TunerParamsT        tunerParams;    
+    sdrplay_api_ControlParamsT      ctrlParams;     
+    sdrplay_api_Rsp1aTunerParamsT   rsp1aTunerParams; 
+    sdrplay_api_Rsp2TunerParamsT    rsp2TunerParams; 
+    sdrplay_api_RspDuoTunerParamsT  rspDuoTunerParams;    
+    sdrplay_api_RspDxTunerParamsT   rspDxTunerParams;    
+} sdrplay_api_RxChannelParamsT;
+
+#endif //SDRPLAY_API_RX_CHANNEL_H

artifacts/sdrplay-api-headers/v3_07/sdrplay_api_tuner.h

@@ -0,0 +1,93 @@
+#ifndef SDRPLAY_API_TUNER_H
+#define SDRPLAY_API_TUNER_H
+
+#define MAX_BB_GR                         (59)
+
+// Tuner parameter enums
+typedef enum
+{
+    sdrplay_api_BW_Undefined = 0,
+    sdrplay_api_BW_0_200     = 200,
+    sdrplay_api_BW_0_300     = 300,
+    sdrplay_api_BW_0_600     = 600,
+    sdrplay_api_BW_1_536     = 1536,
+    sdrplay_api_BW_5_000     = 5000,
+    sdrplay_api_BW_6_000     = 6000,
+    sdrplay_api_BW_7_000     = 7000,
+    sdrplay_api_BW_8_000     = 8000
+} sdrplay_api_Bw_MHzT;
+
+typedef enum
+{
+    sdrplay_api_IF_Undefined = -1,
+    sdrplay_api_IF_Zero      = 0,
+    sdrplay_api_IF_0_450     = 450,
+    sdrplay_api_IF_1_620     = 1620,
+    sdrplay_api_IF_2_048     = 2048
+} sdrplay_api_If_kHzT;
+
+typedef enum
+{
+    sdrplay_api_LO_Undefined = 0,
+    sdrplay_api_LO_Auto      = 1,
+    sdrplay_api_LO_120MHz    = 2,
+    sdrplay_api_LO_144MHz    = 3,
+    sdrplay_api_LO_168MHz    = 4
+} sdrplay_api_LoModeT;
+
+typedef enum
+{
+    sdrplay_api_EXTENDED_MIN_GR = 0,
+    sdrplay_api_NORMAL_MIN_GR   = 20
+} sdrplay_api_MinGainReductionT;
+
+typedef enum
+{
+    sdrplay_api_Tuner_Neither  = 0,
+    sdrplay_api_Tuner_A        = 1,
+    sdrplay_api_Tuner_B        = 2,
+    sdrplay_api_Tuner_Both     = 3,
+} sdrplay_api_TunerSelectT;
+
+// Tuner parameter structs
+typedef struct
+{
+    float curr;
+    float max;
+    float min;
+} sdrplay_api_GainValuesT;
+
+typedef struct 
+{
+    int gRdB;                            // default: 50
+    unsigned char LNAstate;              // default: 0
+    unsigned char syncUpdate;            // default: 0
+    sdrplay_api_MinGainReductionT minGr; // default: sdrplay_api_NORMAL_MIN_GR
+    sdrplay_api_GainValuesT gainVals;    // output parameter
+} sdrplay_api_GainT;
+
+typedef struct 
+{
+    double rfHz;                         // default: 200000000.0
+    unsigned char syncUpdate;            // default: 0
+} sdrplay_api_RfFreqT;
+
+typedef struct 
+{
+    unsigned char dcCal;                 // default: 3 (Periodic mode)
+    unsigned char speedUp;               // default: 0 (No speedup)
+    int trackTime;                       // default: 1    (=> time in uSec = (72 * 3 * trackTime) / 24e6       = 9uSec)
+    int refreshRateTime;                 // default: 2048 (=> time in uSec = (72 * 3 * refreshRateTime) / 24e6 = 18432uSec)
+} sdrplay_api_DcOffsetTunerT;
+
+typedef struct 
+{
+    sdrplay_api_Bw_MHzT bwType;          // default: sdrplay_api_BW_0_200
+    sdrplay_api_If_kHzT ifType;          // default: sdrplay_api_IF_Zero
+    sdrplay_api_LoModeT loMode;          // default: sdrplay_api_LO_Auto
+    sdrplay_api_GainT gain;
+    sdrplay_api_RfFreqT rfFreq;
+    sdrplay_api_DcOffsetTunerT dcOffsetTuner;
+} sdrplay_api_TunerParamsT;
+
+#endif //SDRPLAY_API_TUNER_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api.h

@@ -0,0 +1,230 @@
+#ifndef SDRPLAY_API_H
+#define SDRPLAY_API_H
+
+#include "sdrplay_api_dev.h"
+#include "sdrplay_api_rx_channel.h"
+#include "sdrplay_api_callback.h"
+
+//#if defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64)
+//#include "windows.h"
+//#elif defined (__GNUC__)
+typedef void *HANDLE;
+//#endif
+
+//#ifndef _SDRPLAY_DLL_QUALIFIER
+//#if !defined(STATIC_LIB) && (defined(_M_X64) || defined(_M_IX86) || defined(_M_ARM64))
+//#define _SDRPLAY_DLL_QUALIFIER __declspec(dllimport)
+//#elif defined(STATIC_LIB) || defined(__GNUC__)
+//#define _SDRPLAY_DLL_QUALIFIER
+//#endif
+//#endif  // _SDRPLAY_DLL_QUALIFIER
+
+// Application code should check that it is compiled against the same API version
+// sdrplay_api_ApiVersion() returns the API version 
+#define SDRPLAY_API_VERSION                   (float)(3.11)
+
+// API Constants
+#define SDRPLAY_MAX_DEVICES                   (16)
+#define SDRPLAY_MAX_TUNERS_PER_DEVICE         (2)
+
+#define SDRPLAY_MAX_SER_NO_LEN                (64)
+#define SDRPLAY_MAX_ROOT_NM_LEN               (32)
+
+#define SDRPLAY_RSP1_ID                       (1)
+#define SDRPLAY_RSP1A_ID                      (255)
+#define SDRPLAY_RSP2_ID                       (2)
+#define SDRPLAY_RSPduo_ID                     (3)
+#define SDRPLAY_RSPdx_ID                      (4)
+
+// Enum types
+typedef enum
+{
+    sdrplay_api_Success               = 0,
+    sdrplay_api_Fail                  = 1,
+    sdrplay_api_InvalidParam          = 2,
+    sdrplay_api_OutOfRange            = 3,
+    sdrplay_api_GainUpdateError       = 4,
+    sdrplay_api_RfUpdateError         = 5,
+    sdrplay_api_FsUpdateError         = 6,
+    sdrplay_api_HwError               = 7,
+    sdrplay_api_AliasingError         = 8,
+    sdrplay_api_AlreadyInitialised    = 9,
+    sdrplay_api_NotInitialised        = 10,
+    sdrplay_api_NotEnabled            = 11,
+    sdrplay_api_HwVerError            = 12,
+    sdrplay_api_OutOfMemError         = 13,
+    sdrplay_api_ServiceNotResponding  = 14,
+    sdrplay_api_StartPending          = 15,
+    sdrplay_api_StopPending           = 16,
+    sdrplay_api_InvalidMode           = 17,
+    sdrplay_api_FailedVerification1   = 18,
+    sdrplay_api_FailedVerification2   = 19,
+    sdrplay_api_FailedVerification3   = 20,
+    sdrplay_api_FailedVerification4   = 21,
+    sdrplay_api_FailedVerification5   = 22,
+    sdrplay_api_FailedVerification6   = 23,
+    sdrplay_api_InvalidServiceVersion = 24
+} sdrplay_api_ErrT;
+
+typedef enum
+{
+    sdrplay_api_Update_None                        = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_Dev_Fs                      = 0x00000001,
+    sdrplay_api_Update_Dev_Ppm                     = 0x00000002,
+    sdrplay_api_Update_Dev_SyncUpdate              = 0x00000004,
+    sdrplay_api_Update_Dev_ResetFlags              = 0x00000008,
+
+    sdrplay_api_Update_Rsp1a_BiasTControl          = 0x00000010,
+    sdrplay_api_Update_Rsp1a_RfNotchControl        = 0x00000020,
+    sdrplay_api_Update_Rsp1a_RfDabNotchControl     = 0x00000040,
+
+    sdrplay_api_Update_Rsp2_BiasTControl           = 0x00000080,
+    sdrplay_api_Update_Rsp2_AmPortSelect           = 0x00000100,
+    sdrplay_api_Update_Rsp2_AntennaControl         = 0x00000200,
+    sdrplay_api_Update_Rsp2_RfNotchControl         = 0x00000400,
+    sdrplay_api_Update_Rsp2_ExtRefControl          = 0x00000800,
+
+    sdrplay_api_Update_RspDuo_ExtRefControl        = 0x00001000,
+
+    sdrplay_api_Update_Master_Spare_1              = 0x00002000,
+    sdrplay_api_Update_Master_Spare_2              = 0x00004000,
+
+    // Reasons for master and slave mode
+    // Note: sdrplay_api_Update_Tuner_Gr MUST be the first value defined in this section!
+    sdrplay_api_Update_Tuner_Gr                    = 0x00008000,
+    sdrplay_api_Update_Tuner_GrLimits              = 0x00010000,
+    sdrplay_api_Update_Tuner_Frf                   = 0x00020000,
+    sdrplay_api_Update_Tuner_BwType                = 0x00040000,
+    sdrplay_api_Update_Tuner_IfType                = 0x00080000,
+    sdrplay_api_Update_Tuner_DcOffset              = 0x00100000,
+    sdrplay_api_Update_Tuner_LoMode                = 0x00200000,
+
+    sdrplay_api_Update_Ctrl_DCoffsetIQimbalance    = 0x00400000,
+    sdrplay_api_Update_Ctrl_Decimation             = 0x00800000,
+    sdrplay_api_Update_Ctrl_Agc                    = 0x01000000,
+    sdrplay_api_Update_Ctrl_AdsbMode               = 0x02000000,
+    sdrplay_api_Update_Ctrl_OverloadMsgAck         = 0x04000000,
+
+    sdrplay_api_Update_RspDuo_BiasTControl         = 0x08000000,
+    sdrplay_api_Update_RspDuo_AmPortSelect         = 0x10000000,
+    sdrplay_api_Update_RspDuo_Tuner1AmNotchControl = 0x20000000,
+    sdrplay_api_Update_RspDuo_RfNotchControl       = 0x40000000,
+    sdrplay_api_Update_RspDuo_RfDabNotchControl    = 0x80000000,
+} sdrplay_api_ReasonForUpdateT;
+
+typedef enum
+{
+    sdrplay_api_Update_Ext1_None                   = 0x00000000,
+
+    // Reasons for master only mode 
+    sdrplay_api_Update_RspDx_HdrEnable             = 0x00000001,
+    sdrplay_api_Update_RspDx_BiasTControl          = 0x00000002,
+    sdrplay_api_Update_RspDx_AntennaControl        = 0x00000004,
+    sdrplay_api_Update_RspDx_RfNotchControl        = 0x00000008,
+    sdrplay_api_Update_RspDx_RfDabNotchControl     = 0x00000010,
+    sdrplay_api_Update_RspDx_HdrBw                 = 0x00000020,
+
+    // Reasons for master and slave mode
+} sdrplay_api_ReasonForUpdateExtension1T;
+
+typedef enum
+{
+    sdrplay_api_DbgLvl_Disable       = 0,
+    sdrplay_api_DbgLvl_Verbose       = 1,
+    sdrplay_api_DbgLvl_Warning       = 2,
+    sdrplay_api_DbgLvl_Error         = 3,
+    sdrplay_api_DbgLvl_Message       = 4,
+} sdrplay_api_DbgLvl_t;
+
+// Device structure 
+typedef struct 
+{
+    char SerNo[SDRPLAY_MAX_SER_NO_LEN];
+    unsigned char hwVer;
+    sdrplay_api_TunerSelectT tuner;
+    sdrplay_api_RspDuoModeT rspDuoMode;
+    unsigned char valid;
+    double rspDuoSampleFreq;
+    HANDLE dev;
+} sdrplay_api_DeviceT;
+
+// Device parameter structure
+typedef struct 
+{
+    sdrplay_api_DevParamsT       *devParams;
+    sdrplay_api_RxChannelParamsT *rxChannelA;
+    sdrplay_api_RxChannelParamsT *rxChannelB;
+} sdrplay_api_DeviceParamsT;
+
+// Extended error message structure
+typedef struct 
+{
+    char file[256];
+    char function[256];
+    int  line;
+    char message[1024];
+} sdrplay_api_ErrorInfoT;
+
+// Comman API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_Open_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_Close_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ApiVersion_t)(float *apiVer);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_LockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_UnlockDeviceApi_t)(void);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDevices_t)(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_SelectDevice_t)(sdrplay_api_DeviceT *device);    
+typedef sdrplay_api_ErrT        (*sdrplay_api_ReleaseDevice_t)(sdrplay_api_DeviceT *device);    
+typedef const char*             (*sdrplay_api_GetErrorString_t)(sdrplay_api_ErrT err);
+typedef sdrplay_api_ErrorInfoT* (*sdrplay_api_GetLastError_t)(sdrplay_api_DeviceT *device);
+typedef sdrplay_api_ErrT        (*sdrplay_api_DisableHeartbeat_t)(void);
+
+// Device API function types
+typedef sdrplay_api_ErrT        (*sdrplay_api_DebugEnable_t)(HANDLE dev, sdrplay_api_DbgLvl_t dbgLvl); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_GetDeviceParams_t)(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Init_t)(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext); 
+typedef sdrplay_api_ErrT        (*sdrplay_api_Uninit_t)(HANDLE dev);
+typedef sdrplay_api_ErrT        (*sdrplay_api_Update_t)(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoActiveTuner_t)(HANDLE dev, sdrplay_api_TunerSelectT *tuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoDualTunerModeSampleRate_t)(double *currentSampleRate, double newSampleRate);
+typedef sdrplay_api_ErrT        (*sdrplay_api_SwapRspDuoMode_t)(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+// API function definitions
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    // Comman API function definitions
+     sdrplay_api_ErrT        sdrplay_api_Open(void);
+     sdrplay_api_ErrT        sdrplay_api_Close(void);
+     sdrplay_api_ErrT        sdrplay_api_ApiVersion(float *apiVer);
+     sdrplay_api_ErrT        sdrplay_api_LockDeviceApi(void);
+     sdrplay_api_ErrT        sdrplay_api_UnlockDeviceApi(void);
+     sdrplay_api_ErrT        sdrplay_api_GetDevices(sdrplay_api_DeviceT *devices, unsigned int *numDevs, unsigned int maxDevs);
+     sdrplay_api_ErrT        sdrplay_api_SelectDevice(sdrplay_api_DeviceT *device);
+     sdrplay_api_ErrT        sdrplay_api_ReleaseDevice(sdrplay_api_DeviceT *device);
+     const char*             sdrplay_api_GetErrorString(sdrplay_api_ErrT err);
+     sdrplay_api_ErrorInfoT* sdrplay_api_GetLastError(sdrplay_api_DeviceT *device);
+     sdrplay_api_ErrT        sdrplay_api_DisableHeartbeat(void); // Must be called before sdrplay_api_SelectDevice()
+
+    // Device API function definitions
+     sdrplay_api_ErrT        sdrplay_api_DebugEnable(HANDLE dev, sdrplay_api_DbgLvl_t enable);
+     sdrplay_api_ErrT        sdrplay_api_GetDeviceParams(HANDLE dev, sdrplay_api_DeviceParamsT **deviceParams);
+     sdrplay_api_ErrT        sdrplay_api_Init(HANDLE dev, sdrplay_api_CallbackFnsT *callbackFns, void *cbContext);
+     sdrplay_api_ErrT        sdrplay_api_Uninit(HANDLE dev);
+     sdrplay_api_ErrT        sdrplay_api_Update(HANDLE dev, sdrplay_api_TunerSelectT tuner, sdrplay_api_ReasonForUpdateT reasonForUpdate, sdrplay_api_ReasonForUpdateExtension1T reasonForUpdateExt1);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoActiveTuner(HANDLE dev, sdrplay_api_TunerSelectT *currentTuner, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoDualTunerModeSampleRate(HANDLE dev, double *currentSampleRate, double newSampleRate);
+     sdrplay_api_ErrT        sdrplay_api_SwapRspDuoMode(sdrplay_api_DeviceT *currDevice, sdrplay_api_DeviceParamsT **deviceParams,
+                                                                              sdrplay_api_RspDuoModeT rspDuoMode, double sampleRate, sdrplay_api_TunerSelectT tuner,
+                                                                              sdrplay_api_Bw_MHzT bwType, sdrplay_api_If_kHzT ifType, sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //SDRPLAY_API_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_callback.h

@@ -0,0 +1,79 @@
+#ifndef SDRPLAY_API_CALLBACK_H
+#define SDRPLAY_API_CALLBACK_H
+
+// Event callback enums
+typedef enum
+{
+    sdrplay_api_Overload_Detected     = 0,
+    sdrplay_api_Overload_Corrected    = 1,
+} sdrplay_api_PowerOverloadCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_MasterInitialised      = 0,
+    sdrplay_api_SlaveAttached          = 1,
+    sdrplay_api_SlaveDetached          = 2,
+    sdrplay_api_SlaveInitialised       = 3,
+    sdrplay_api_SlaveUninitialised     = 4,
+    sdrplay_api_MasterDllDisappeared   = 5,
+    sdrplay_api_SlaveDllDisappeared    = 6,
+} sdrplay_api_RspDuoModeCbEventIdT;
+
+typedef enum
+{
+    sdrplay_api_GainChange            = 0,
+    sdrplay_api_PowerOverloadChange   = 1,
+    sdrplay_api_DeviceRemoved         = 2,
+    sdrplay_api_RspDuoModeChange      = 3,
+    sdrplay_api_DeviceFailure         = 4,
+} sdrplay_api_EventT;
+
+// Event callback parameter structs
+typedef struct 
+{
+    unsigned int gRdB;
+    unsigned int lnaGRdB;
+    double currGain;
+} sdrplay_api_GainCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_PowerOverloadCbEventIdT powerOverloadChangeType;
+} sdrplay_api_PowerOverloadCbParamT;
+
+typedef struct 
+{
+    sdrplay_api_RspDuoModeCbEventIdT modeChangeType;
+} sdrplay_api_RspDuoModeCbParamT;
+
+// Event parameters overlay
+typedef union
+{
+    sdrplay_api_GainCbParamT          gainParams;
+    sdrplay_api_PowerOverloadCbParamT powerOverloadParams;
+    sdrplay_api_RspDuoModeCbParamT    rspDuoModeParams;
+} sdrplay_api_EventParamsT;
+
+// Stream callback parameter structs
+typedef struct 
+{
+    unsigned int firstSampleNum;
+    int grChanged;
+    int rfChanged;
+    int fsChanged;
+    unsigned int numSamples;
+} sdrplay_api_StreamCbParamsT;
+
+// Callback function prototypes
+typedef void (*sdrplay_api_StreamCallback_t)(short *xi, short *xq, sdrplay_api_StreamCbParamsT *params, unsigned int numSamples, unsigned int reset, void *cbContext); 
+typedef void (*sdrplay_api_EventCallback_t)(sdrplay_api_EventT eventId, sdrplay_api_TunerSelectT tuner, sdrplay_api_EventParamsT *params, void *cbContext); 
+
+// Callback function struct
+typedef struct 
+{
+    sdrplay_api_StreamCallback_t StreamACbFn;
+    sdrplay_api_StreamCallback_t StreamBCbFn;
+    sdrplay_api_EventCallback_t  EventCbFn;
+} sdrplay_api_CallbackFnsT;
+
+#endif //SDRPLAY_API_CALLBACK_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_control.h

@@ -0,0 +1,55 @@
+#ifndef SDRPLAY_API_CONTROL_H
+#define SDRPLAY_API_CONTROL_H
+
+// Control parameter enums
+typedef enum
+{
+    sdrplay_api_AGC_DISABLE  = 0,
+    sdrplay_api_AGC_100HZ    = 1,
+    sdrplay_api_AGC_50HZ     = 2,
+    sdrplay_api_AGC_5HZ      = 3,
+    sdrplay_api_AGC_CTRL_EN  = 4
+} sdrplay_api_AgcControlT;
+
+typedef enum
+{
+    sdrplay_api_ADSB_DECIMATION                  = 0,
+    sdrplay_api_ADSB_NO_DECIMATION_LOWPASS       = 1,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_2MHZ = 2,
+    sdrplay_api_ADSB_NO_DECIMATION_BANDPASS_3MHZ = 3
+} sdrplay_api_AdsbModeT;
+
+// Control parameter structs
+typedef struct 
+{
+    unsigned char DCenable;          // default: 1
+    unsigned char IQenable;          // default: 1
+} sdrplay_api_DcOffsetT;
+
+typedef struct 
+{
+    unsigned char enable;            // default: 0
+    unsigned char decimationFactor;  // default: 1
+    unsigned char wideBandSignal;    // default: 0
+} sdrplay_api_DecimationT;
+
+typedef struct 
+{
+    sdrplay_api_AgcControlT enable;    // default: sdrplay_api_AGC_50HZ
+    int setPoint_dBfs;                 // default: -60
+    unsigned short attack_ms;          // default: 0
+    unsigned short decay_ms;           // default: 0
+    unsigned short decay_delay_ms;     // default: 0
+    unsigned short decay_threshold_dB; // default: 0
+    int syncUpdate;                    // default: 0
+} sdrplay_api_AgcT;
+
+typedef struct 
+{
+    sdrplay_api_DcOffsetT dcOffset;
+    sdrplay_api_DecimationT decimation;
+    sdrplay_api_AgcT agc;
+    sdrplay_api_AdsbModeT adsbMode;  //default: sdrplay_api_ADSB_DECIMATION
+} sdrplay_api_ControlParamsT;
+
+#endif //SDRPLAY_API_CONTROL_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_dev.h

@@ -0,0 +1,51 @@
+#ifndef SDRPLAY_API_DEV_H
+#define SDRPLAY_API_DEV_H
+
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+// Dev parameter enums
+typedef enum
+{
+    sdrplay_api_ISOCH = 0,
+    sdrplay_api_BULK  = 1
+} sdrplay_api_TransferModeT;
+
+// Dev parameter structs
+typedef struct 
+{
+    double fsHz;                        // default: 2000000.0
+    unsigned char syncUpdate;           // default: 0
+    unsigned char reCal;                // default: 0
+} sdrplay_api_FsFreqT;
+
+typedef struct 
+{
+    unsigned int sampleNum;             // default: 0
+    unsigned int period;                // default: 0
+} sdrplay_api_SyncUpdateT;
+
+typedef struct 
+{
+    unsigned char resetGainUpdate;      // default: 0
+    unsigned char resetRfUpdate;        // default: 0
+    unsigned char resetFsUpdate;        // default: 0
+} sdrplay_api_ResetFlagsT;   
+
+typedef struct 
+{
+    double ppm;                         // default: 0.0
+    sdrplay_api_FsFreqT fsFreq;
+    sdrplay_api_SyncUpdateT syncUpdate; 
+    sdrplay_api_ResetFlagsT resetFlags; 
+    sdrplay_api_TransferModeT mode;     // default: sdrplay_api_ISOCH
+    unsigned int samplesPerPkt;         // default: 0 (output param)
+    sdrplay_api_Rsp1aParamsT rsp1aParams;
+    sdrplay_api_Rsp2ParamsT rsp2Params;
+    sdrplay_api_RspDuoParamsT rspDuoParams;
+    sdrplay_api_RspDxParamsT rspDxParams;
+} sdrplay_api_DevParamsT;
+
+#endif //SDRPLAY_API_DEV_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rsp1a.h

@@ -0,0 +1,22 @@
+#ifndef SDRPLAY_API_RSP1A_H
+#define SDRPLAY_API_RSP1A_H
+
+#define RSPIA_NUM_LNA_STATES         10
+#define RSPIA_NUM_LNA_STATES_AM      7
+#define RSPIA_NUM_LNA_STATES_LBAND   9
+
+// RSP1A parameter enums
+
+// RSP1A parameter structs
+typedef struct 
+{
+    unsigned char rfNotchEnable;                              // default: 0
+    unsigned char rfDabNotchEnable;                           // default: 0
+} sdrplay_api_Rsp1aParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+} sdrplay_api_Rsp1aTunerParamsT;
+
+#endif //SDRPLAY_API_RSP1A_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rsp2.h

@@ -0,0 +1,35 @@
+#ifndef SDRPLAY_API_RSP2_H
+#define SDRPLAY_API_RSP2_H
+
+#define RSPII_NUM_LNA_STATES         9
+#define RSPII_NUM_LNA_STATES_AMPORT  5
+#define RSPII_NUM_LNA_STATES_420MHZ  6
+
+// RSP2 parameter enums
+typedef enum
+{
+    sdrplay_api_Rsp2_ANTENNA_A = 5,
+    sdrplay_api_Rsp2_ANTENNA_B = 6,
+} sdrplay_api_Rsp2_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_Rsp2_AMPORT_1 = 1,
+    sdrplay_api_Rsp2_AMPORT_2 = 0,
+} sdrplay_api_Rsp2_AmPortSelectT;
+
+// RSP2 parameter structs
+typedef struct 
+{
+    unsigned char extRefOutputEn;                // default: 0
+} sdrplay_api_Rsp2ParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                   // default: 0
+    sdrplay_api_Rsp2_AmPortSelectT amPortSel;    // default: sdrplay_api_Rsp2_AMPORT_2
+    sdrplay_api_Rsp2_AntennaSelectT antennaSel;  // default: sdrplay_api_Rsp2_ANTENNA_A
+    unsigned char rfNotchEnable;                 // default: 0
+} sdrplay_api_Rsp2TunerParamsT;
+
+#endif //SDRPLAY_API_RSP2_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rspDuo.h

@@ -0,0 +1,40 @@
+#ifndef SDRPLAY_API_RSPduo_H
+#define SDRPLAY_API_RSPduo_H
+
+#define RSPDUO_NUM_LNA_STATES         10
+#define RSPDUO_NUM_LNA_STATES_AMPORT  5
+#define RSPDUO_NUM_LNA_STATES_AM      7
+#define RSPDUO_NUM_LNA_STATES_LBAND   9
+
+// RSPduo parameter enums
+typedef enum
+{
+    sdrplay_api_RspDuoMode_Unknown      = 0,
+    sdrplay_api_RspDuoMode_Single_Tuner = 1,
+    sdrplay_api_RspDuoMode_Dual_Tuner   = 2,
+    sdrplay_api_RspDuoMode_Master       = 4,
+    sdrplay_api_RspDuoMode_Slave        = 8,
+} sdrplay_api_RspDuoModeT;
+
+typedef enum
+{
+    sdrplay_api_RspDuo_AMPORT_1 = 1,
+    sdrplay_api_RspDuo_AMPORT_2 = 0,
+} sdrplay_api_RspDuo_AmPortSelectT;
+
+// RSPduo parameter structs
+typedef struct 
+{
+    int extRefOutputEn;                             // default: 0
+} sdrplay_api_RspDuoParamsT;
+
+typedef struct 
+{
+    unsigned char biasTEnable;                      // default: 0
+    sdrplay_api_RspDuo_AmPortSelectT tuner1AmPortSel; // default: sdrplay_api_RspDuo_AMPORT_2
+    unsigned char tuner1AmNotchEnable;              // default: 0
+    unsigned char rfNotchEnable;                    // default: 0
+    unsigned char rfDabNotchEnable;                 // default: 0
+} sdrplay_api_RspDuoTunerParamsT;
+
+#endif //SDRPLAY_API_RSPduo_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rspDx.h

@@ -0,0 +1,46 @@
+#ifndef SDRPLAY_API_RSPDX_H
+#define SDRPLAY_API_RSPDX_H
+
+#include "sdrplay_api_tuner.h"
+
+#define RSPDX_NUM_LNA_STATES               28   // Number of LNA states in all bands (except where defined differently below)
+#define RSPDX_NUM_LNA_STATES_AMPORT2_0_12  19   // Number of LNA states when using AM Port 2 between 0 and 12MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_12_50 20   // Number of LNA states when using AM Port 2 between 12 and 50MHz
+#define RSPDX_NUM_LNA_STATES_AMPORT2_50_60 25   // Number of LNA states when using AM Port 2 between 50 and 60MHz
+#define RSPDX_NUM_LNA_STATES_VHF_BAND3     27   // Number of LNA states in VHF and Band3
+#define RSPDX_NUM_LNA_STATES_420MHZ        21   // Number of LNA states in 420MHz band
+#define RSPDX_NUM_LNA_STATES_LBAND         19   // Number of LNA states in L-band
+#define RSPDX_NUM_LNA_STATES_DX            22   // Number of LNA states in DX path
+
+// RSPdx parameter enums
+typedef enum
+{
+    sdrplay_api_RspDx_ANTENNA_A = 0,
+    sdrplay_api_RspDx_ANTENNA_B = 1,
+    sdrplay_api_RspDx_ANTENNA_C = 2,
+} sdrplay_api_RspDx_AntennaSelectT;
+
+typedef enum
+{
+    sdrplay_api_RspDx_HDRMODE_BW_0_200  = 0,
+    sdrplay_api_RspDx_HDRMODE_BW_0_500  = 1,
+    sdrplay_api_RspDx_HDRMODE_BW_1_200  = 2,
+    sdrplay_api_RspDx_HDRMODE_BW_1_700  = 3,
+} sdrplay_api_RspDx_HdrModeBwT;
+
+// RSPdx parameter structs
+typedef struct 
+{
+    unsigned char hdrEnable;                            // default: 0
+    unsigned char biasTEnable;                          // default: 0
+    sdrplay_api_RspDx_AntennaSelectT antennaSel;        // default: sdrplay_api_RspDx_ANTENNA_A
+    unsigned char rfNotchEnable;                        // default: 0
+    unsigned char rfDabNotchEnable;                     // default: 0
+} sdrplay_api_RspDxParamsT;
+
+typedef struct 
+{
+    sdrplay_api_RspDx_HdrModeBwT hdrBw;                 // default: sdrplay_api_RspDx_HDRMODE_BW_1_700
+} sdrplay_api_RspDxTunerParamsT;
+
+#endif //SDRPLAY_API_RSPDX_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_rx_channel.h

@@ -0,0 +1,21 @@
+#ifndef SDRPLAY_API_RX_CHANNEL_H
+#define SDRPLAY_API_RX_CHANNEL_H
+
+#include "sdrplay_api_tuner.h"
+#include "sdrplay_api_control.h"
+#include "sdrplay_api_rsp1a.h"
+#include "sdrplay_api_rsp2.h"
+#include "sdrplay_api_rspDuo.h"
+#include "sdrplay_api_rspDx.h"
+
+typedef struct 
+{
+    sdrplay_api_TunerParamsT        tunerParams;    
+    sdrplay_api_ControlParamsT      ctrlParams;     
+    sdrplay_api_Rsp1aTunerParamsT   rsp1aTunerParams; 
+    sdrplay_api_Rsp2TunerParamsT    rsp2TunerParams; 
+    sdrplay_api_RspDuoTunerParamsT  rspDuoTunerParams;    
+    sdrplay_api_RspDxTunerParamsT   rspDxTunerParams;    
+} sdrplay_api_RxChannelParamsT;
+
+#endif //SDRPLAY_API_RX_CHANNEL_H

artifacts/sdrplay-api-headers/v3_11/sdrplay_api_tuner.h

@@ -0,0 +1,93 @@
+#ifndef SDRPLAY_API_TUNER_H
+#define SDRPLAY_API_TUNER_H
+
+#define MAX_BB_GR                         (59)
+
+// Tuner parameter enums
+typedef enum
+{
+    sdrplay_api_BW_Undefined = 0,
+    sdrplay_api_BW_0_200     = 200,
+    sdrplay_api_BW_0_300     = 300,
+    sdrplay_api_BW_0_600     = 600,
+    sdrplay_api_BW_1_536     = 1536,
+    sdrplay_api_BW_5_000     = 5000,
+    sdrplay_api_BW_6_000     = 6000,
+    sdrplay_api_BW_7_000     = 7000,
+    sdrplay_api_BW_8_000     = 8000
+} sdrplay_api_Bw_MHzT;
+
+typedef enum
+{
+    sdrplay_api_IF_Undefined = -1,
+    sdrplay_api_IF_Zero      = 0,
+    sdrplay_api_IF_0_450     = 450,
+    sdrplay_api_IF_1_620     = 1620,
+    sdrplay_api_IF_2_048     = 2048
+} sdrplay_api_If_kHzT;
+
+typedef enum
+{
+    sdrplay_api_LO_Undefined = 0,
+    sdrplay_api_LO_Auto      = 1,
+    sdrplay_api_LO_120MHz    = 2,
+    sdrplay_api_LO_144MHz    = 3,
+    sdrplay_api_LO_168MHz    = 4
+} sdrplay_api_LoModeT;
+
+typedef enum
+{
+    sdrplay_api_EXTENDED_MIN_GR = 0,
+    sdrplay_api_NORMAL_MIN_GR   = 20
+} sdrplay_api_MinGainReductionT;
+
+typedef enum
+{
+    sdrplay_api_Tuner_Neither  = 0,
+    sdrplay_api_Tuner_A        = 1,
+    sdrplay_api_Tuner_B        = 2,
+    sdrplay_api_Tuner_Both     = 3,
+} sdrplay_api_TunerSelectT;
+
+// Tuner parameter structs
+typedef struct
+{
+    float curr;
+    float max;
+    float min;
+} sdrplay_api_GainValuesT;
+
+typedef struct 
+{
+    int gRdB;                            // default: 50
+    unsigned char LNAstate;              // default: 0
+    unsigned char syncUpdate;            // default: 0
+    sdrplay_api_MinGainReductionT minGr; // default: sdrplay_api_NORMAL_MIN_GR
+    sdrplay_api_GainValuesT gainVals;    // output parameter
+} sdrplay_api_GainT;
+
+typedef struct 
+{
+    double rfHz;                         // default: 200000000.0
+    unsigned char syncUpdate;            // default: 0
+} sdrplay_api_RfFreqT;
+
+typedef struct 
+{
+    unsigned char dcCal;                 // default: 3 (Periodic mode)
+    unsigned char speedUp;               // default: 0 (No speedup)
+    int trackTime;                       // default: 1    (=> time in uSec = (72 * 3 * trackTime) / 24e6       = 9uSec)
+    int refreshRateTime;                 // default: 2048 (=> time in uSec = (72 * 3 * refreshRateTime) / 24e6 = 18432uSec)
+} sdrplay_api_DcOffsetTunerT;
+
+typedef struct 
+{
+    sdrplay_api_Bw_MHzT bwType;          // default: sdrplay_api_BW_0_200
+    sdrplay_api_If_kHzT ifType;          // default: sdrplay_api_IF_Zero
+    sdrplay_api_LoModeT loMode;          // default: sdrplay_api_LO_Auto
+    sdrplay_api_GainT gain;
+    sdrplay_api_RfFreqT rfFreq;
+    sdrplay_api_DcOffsetTunerT dcOffsetTuner;
+} sdrplay_api_TunerParamsT;
+
+#endif //SDRPLAY_API_TUNER_H

build.gradle

@@ -1,6 +1,8 @@
+import java.text.SimpleDateFormat
+
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -16,6 +18,29 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
  * ****************************************************************************
  */
+
+/**
+ * Instructions for building/compiling the sdrtrunk application.
+ *
+ * Prerequisites:
+ * Install and configure an OpenJDK version 19+ that includes the JavaFX modules (e.g. Bellsoft Liberica JDK)
+ * - Optional: install and configure Gradle 7.6+
+ *
+ * Scenario 1: run the application via gradle command line from the source code root directory:
+ * command: ./gradlew run
+ *
+ * Scenario 2: create an application release for the current operating system
+ * command: ./gradlew runtimeZipCurrent
+ * Note: release image is located in the /build/image/ directory
+ *
+ * Scenario 3: create releases for Linux and OSX operating systems using downloaded JDKs
+ * command: ./gradlew runtimeZipOthers
+ * Note: release images are located in the /build/image/ directory
+ *
+ * Scenario 4: create release for Windows operating system using downloaded JDK
+ * command: ./gradlew runtimeZipWindows
+ * Note: release image is located in the /build/image/ directory
+ */
 plugins {
     id 'application'
     id 'java'
@@ -28,8 +53,14 @@ repositories {
     maven { url "https://jitpack.io" }
 }
 
-version = '0.5.0-beta7'
-sourceCompatibility = '17'
+version = '0.6.0-alpha5'
+
+//Java 19 is required for this version of the Project Panama preview/incubator feature
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(19)
+    }
+}
 
 sourceSets {
     main.java.srcDirs 'src/main'
@@ -90,19 +121,46 @@ dependencies {
     implementation 'pl.edu.icm:JLargeArrays:1.6'
 }
 
+def os = org.gradle.nativeplatform.platform.internal.DefaultNativePlatform.currentOperatingSystem
+
 /**
- * This is needed for the JDK17 vector API ... until it moves out of incubation
+ * This is needed for the JDK19 panama and vector API ... until it moves out of incubation or preview
  */
 tasks.withType(JavaCompile) {
+    options.compilerArgs.add("--enable-preview") //Panama Foreign Function/Memory is preview in JDK 19
     options.compilerArgs.add("--add-modules=jdk.incubator.vector") //Needed while Panama Vector API remains in incubator
 }
 
+/**
+ * JVM Arguments for running the application on Windows.
+ */
+def jvmArgsWindows =
+        ['--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED', //Needed for controls-fx.jar
+         '--add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED', //windows users for JIDE
+         '--add-modules=jdk.incubator.vector',   //Needed while Project Panama API is still in incubator
+         '--enable-preview', //Project Panama Vector & Foreign Function APIs remain in incubator
+         '--enable-native-access=ALL-UNNAMED',
+         '-Djava.library.path=c:\\Program Files\\SDRplay\\API\\x64'] //Allows Project Panama Foreign Function access to system library
+
+/**
+ * JVM Arguments for running the application on Linux.
+ */
+def jvmArgsLinux =
+        ['--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED', //Needed for controls-fx.jar
+         '--add-modules=jdk.incubator.vector',   //Needed while Project Panama API is still in incubator
+         '--enable-preview', //Project Panama Vector & Foreign Function APIs remain in incubator
+         '--enable-native-access=ALL-UNNAMED',
+         '-Djava.library.path=/usr/local/lib'] //Allows Project Panama Foreign Function access to system library
+
 application {
     mainClassName = "io.github.dsheirer.gui.SDRTrunk"
-    applicationDefaultJvmArgs =
-        ['--add-exports=javafx.base/com.sun.javafx.event=ALL-UNNAMED', //Needed for controls-fx.jar
-         '--add-modules=jdk.incubator.vector',   //Needed while Panama Vector API remains in incubator
-         '--add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED'] //Windows Swing - jide-oss library
+
+    if(os.isWindows()) {
+        applicationDefaultJvmArgs = jvmArgsWindows
+    }
+    else {
+        applicationDefaultJvmArgs = jvmArgsLinux
+    }
 }
 
 jar {
@@ -111,7 +169,7 @@ jar {
                 'Implementation-Title'  : 'sdrtrunk project',
                 'Implementation-Version' : archiveVersion,
                 'Created-By'            : "Gradle ${gradle.gradleVersion}",
-                'Build-Timestamp'       : new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(new Date()),
+                'Build-Timestamp'       : new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(new Date()),
                 'Build-JDK'             : "${System.properties['java.version']} (${System.properties['java.vendor']} ${System.properties['java.vm.version']}",
                 'Build-OS'              : "${System.properties['os.name']} (${System.properties['os.arch']} ${System.properties['os.version']}"
         )
@@ -145,82 +203,152 @@ String jdk_osx_x86_64 = jdk_base + 'osx-x64/jdk-19.0.1-full.jdk'
 String jdk_osx_aarch64 = jdk_base + 'osx-arm64/jdk-19.0.1-full.jdk'
 String jdk_windows_x86_64 = jdk_base + 'windows-x64/jdk-19.0.1-full'
 
-boolean hasTargetJdks = file(jdk_linux_x86_64).exists() || file(jdk_linux_aarch64).exists() ||
-        file(jdk_osx_x86_64).exists() || file(jdk_osx_aarch64).exists() || file(jdk_windows_x86_64).exists()
+/**
+ * Download URLs to download the JDK as part of the gradle build packaging process
+ */
+def jdk_download_base = "https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-"
+def jdk_download_suffix = "-full.tar.gz"
+def jdk_download_linux_aarch64 = jdk_download_base + "linux-aarch64" + jdk_download_suffix
+def jdk_download_linux_x86_64 = jdk_download_base + "linux-amd64" + jdk_download_suffix
+def jdk_download_osx_x86_64 = jdk_download_base + "macos-aarch64" + jdk_download_suffix
+def jdk_download_osx_aarch64 = jdk_download_base + "macos-amd64" + jdk_download_suffix
+def jdk_download_windows_x86_64 = jdk_download_base + "windows-amd64-full.zip"
 
 /**
- * Auto-download target JDKs.  Defaults to false, or the user can override via the gradle command line by
- * including this option: '-PdownloadJdks=true'
+ * Configures the runtime zip task with additional options/settings.
+ * @param rt task to configure
+ * @param jvmArgs to use (windows or linux)
+ * @return configured task.
  */
-boolean downloadJdks = project.hasProperty('downloadJdks') ? project.getProperty('downloadJdks') : false
-
-/**
- * Beryx Runtime plugin for creating OS and CPU targeted build(s) of the software.
- *
- * Option 1: Create a single target build using the locally installed JDK, or optionally create target builds for
- * all OS and CPU targets when pre-downloaded target JDKs are available (see 'jdk_*' properties above).
- *
- *    >: gradle runtimeZip
- *
- * Option 2: Create all OS and CPU target builds by automatically downloading all JDKs needed to build the target images
- *
- *    >: gradle runtimeZip -PdownloadJdks=true
- */
-runtime {
-    //Build by automatically downloading JDKs for the OS and CPU targets
-    if(downloadJdks) {
-        println("Building all runtime images")
-        println("The [ > jre: ] build phase downloads several target JDKs and this may take a while ... please wait")
-        targetPlatform(targetLinuxAarch64) {
-            jdkHome = jdkDownload("https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-linux-aarch64-full.tar.gz")
-        }
-        targetPlatform(targetLinuxX86_64) {
-            jdkHome = jdkDownload("https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-linux-amd64-full.tar.gz")
-        }
-        targetPlatform(targetOsxAarch64) {
-            jdkHome = jdkDownload("https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-macos-aarch64-full.tar.gz")
-        }
-        targetPlatform(targetOsxX86_64) {
-            jdkHome = jdkDownload("https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-macos-amd64-full.tar.gz")
-        }
-        targetPlatform(targetWindowsX86_64) {
-            jdkHome = jdkDownload("https://download.bell-sw.com/java/19.0.1+11/bellsoft-jdk19.0.1+11-windows-amd64-full.zip")
-        }
-    }
-    //Build using pre-downloaded JDKs
-    else if(hasTargetJdks) {
-        println("Building all runtime images using pre-downloaded JDKs")
-        if(file(jdk_linux_aarch64).exists()) {
-            targetPlatform(targetLinuxAarch64, jdk_linux_aarch64)
-        }
-        if(file(jdk_linux_x86_64).exists()) {
-            targetPlatform(targetLinuxX86_64, jdk_linux_x86_64)
-        }
-        if(file(jdk_osx_aarch64).exists()) {
-            targetPlatform(targetOsxAarch64, jdk_osx_aarch64)
-        }
-        if(file(jdk_osx_x86_64).exists()) {
-            targetPlatform(targetOsxX86_64, jdk_osx_x86_64)
-        }
-        if(file(jdk_windows_x86_64).exists()) {
-            targetPlatform(targetWindowsX86_64, jdk_windows_x86_64)
-        }
-    }
-    //Build using locally installed JDK only
-    else {
-        println("Building a single runtime image using locally installed JDK")
-    }
+def configure(org.beryx.runtime.RuntimeZipTask rt, List<String> jvmArgs) {
+    //Use the correct set of JVM arguments
+    rt.extension.launcherData.get().jvmArgs = jvmArgs
 
     //Additional modules to include with auto-detected modules.
-    modules = ['jdk.crypto.ec'] //jdk.crypto.ec needed for HTTPS connections (broadcastify calls & map tile server)
+    //jdk.crypto.ec - needed for HTTPS connections (broadcastify calls & map tile server)
+    //jdk.incubator.vector - needed for Project Panama foreign function and vector apis
+    //jdk.accessibility is used with assistive technologies like screen readers
+    rt.extension.addModules('jdk.crypto.ec', 'jdk.incubator.vector', 'jdk.accessibility')
 
     //Use auto-detected modules and 'add' any specified modules.
-    additive = true
+    rt.extension.additive.set(true)
 
     //Recommended options for reducing/shrinking runtime target image size
-    options = ['--strip-debug', '--compress', '2', '--no-header-files', '--no-man-pages']
+    rt.extension.addOptions('--strip-debug', '--compress', '2', '--no-header-files', '--no-man-pages')
 
     //Runtime images have auto appended version in image zip name.  Override to include version in single target image.
-    imageZip = (hasTargetJdks | downloadJdks) ? file("$buildDir/image/sdr-trunk.zip") :
-            file("$buildDir/image/sdr-trunk-" + version + ".zip")
+    rt.extension.imageZip.set(file("$buildDir/image/sdr-trunk.zip"))
 }
+
+/**
+ * Creates a release package for the current operating system.
+ *
+ * Note: you cannot create both Windows and Linux releases at the same time due to limitations of the Runtime plugin
+ *
+ * Usage: gradle runtimeZipCurrent
+ * Usage: gradlew runtimeZipCurrent   (windows - using gradlew)
+ * Usage: ./gradlew runtimeZipCurrent   (linux - using gradlew)
+ */
+tasks.register('runtimeZipCurrent', org.beryx.runtime.RuntimeZipTask) {rt ->
+    def arch = System.properties.getProperty("os.arch")
+    def javaHome = org.gradle.internal.jvm.Jvm.current().getJavaHome().toString()
+
+    if(os.isWindows()) {
+        rt.extension.targetPlatform(targetWindowsX86_64, javaHome)
+        configure(rt, jvmArgsWindows)
+    }
+    else if(os.isLinux())
+    {
+        if(arch.equals("amd64")) {
+            rt.extension.targetPlatform(targetLinuxX86_64, javaHome)
+        }
+        else if(arch.equals("aarch64")) {
+            rt.extension.targetPlatform(targetLinuxAarch64, javaHome)
+        }
+        configure(rt, jvmArgsLinux)
+    }
+    else if(os.isMacOsX())
+    {
+        if(arch.equals("amd64")) {
+            rt.extension.targetPlatform(targetOsxX86_64, javaHome)
+        }
+        else if(arch.equals("aarch64")) {
+            rt.extension.targetPlatform(targetOsxAarch64, javaHome)
+        }
+        configure(rt, jvmArgsLinux)
+    }
+}
+
+
+/**
+ * Creates a Windows release package.
+ *
+ * Note: you cannot create both Windows and Linux releases at the same time due to limitations of the Runtime plugin
+ *
+ * Usage: gradle runtimeZipWindows
+ * Usage: gradlew runtimeZipWindows   (windows - using gradlew)
+ * Usage: ./gradlew runtimeZipWindows   (linux - using gradlew)
+ */
+tasks.register('runtimeZipWindows', org.beryx.runtime.RuntimeZipTask) {rt ->
+    if(file(jdk_windows_x86_64).exists()) {
+        rt.extension.targetPlatform(targetWindowsX86_64, jdk_windows_x86_64, [])
+    }
+    else {
+        rt.extension.targetPlatform(targetWindowsX86_64) {
+            jdkHome = jdkDownload(jdk_download_windows_x86_64)
+        }
+    }
+
+    configure(rt, jvmArgsWindows)
+}
+
+/**
+ * Creates Linux & OSX release packages.
+ *
+ * Note: you cannot create both Windows and Linux releases at the same time due to limitations of the Runtime plugin
+ *
+ * Usage: gradle runtimeZipOthers
+ * Usage: gradlew runtimeZipOthers   (windows - using gradlew)
+ * Usage: ./gradlew runtimeZipOthers   (linux - using gradlew)
+ */
+tasks.register('runtimeZipOthers', org.beryx.runtime.RuntimeZipTask) {rt ->
+    //Linux aarch64
+    if(file(jdk_linux_aarch64).exists()) {
+        rt.extension.targetPlatform(targetLinuxAarch64, jdk_linux_aarch64, [])
+    }
+    else {
+        rt.extension.targetPlatform(targetLinuxAarch64) {
+            jdkHome = jdkDownload(jdk_download_linux_aarch64)
+        }
+    }
+    //Linux x86-64
+    if(file(jdk_linux_x86_64).exists()) {
+        rt.extension.targetPlatform(targetLinuxX86_64, jdk_linux_x86_64, [])
+    }
+    else {
+        rt.extension.targetPlatform(targetLinuxX86_64) {
+            jdkHome = jdkDownload(jdk_download_linux_x86_64)
+        }
+    }
+    //OSX aarch64
+    if(file(jdk_osx_aarch64).exists()) {
+        rt.extension.targetPlatform(targetOsxAarch64, jdk_osx_aarch64, [])
+    }
+    else {
+        rt.extension.targetPlatform(targetOsxAarch64) {
+            jdkHome = jdkDownload(jdk_download_osx_aarch64)
+        }
+    }
+    //Linux x86-64
+    if(file(jdk_osx_x86_64).exists()) {
+        rt.extension.targetPlatform(targetOsxX86_64, jdk_osx_x86_64, [])
+    }
+    else {
+        rt.extension.targetPlatform(targetOsxX86_64) {
+            jdkHome = jdkDownload(jdk_download_osx_x86_64)
+        }
+    }
+
+    configure(rt, jvmArgsLinux);
+}
+

src/main/java/io/github/dsheirer/audio/AbstractAudioModule.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2018 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +14,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.audio;
@@ -106,7 +105,7 @@ public abstract class AbstractAudioModule extends Module implements IAudioSegmen
      * Gets the current audio segment, or creates a new audio segment as necessary and broadcasts it to any registered
      * listener(s).
      */
-    protected AudioSegment getAudioSegment()
+    public AudioSegment getAudioSegment()
     {
         synchronized(this)
         {
@@ -135,7 +134,7 @@ public abstract class AbstractAudioModule extends Module implements IAudioSegmen
         }
     }
 
-    protected void addAudio(float[] audioBuffer)
+    public void addAudio(float[] audioBuffer)
     {
         AudioSegment audioSegment = getAudioSegment();
 

src/main/java/io/github/dsheirer/audio/AudioSegment.java

@@ -1,18 +1,21 @@
-/*******************************************************************************
- * sdr-trunk
- * Copyright (C) 2014-2020 Dennis Sheirer
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
- * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
- * later version.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License  along with this program.
- * If not, see <http://www.gnu.org/licenses/>
- *
- ******************************************************************************/
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
 
 package io.github.dsheirer.audio;
 
@@ -26,15 +29,6 @@ import io.github.dsheirer.identifier.IdentifierUpdateNotification;
 import io.github.dsheirer.identifier.MutableIdentifierCollection;
 import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.IntegerProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-import javafx.beans.property.SimpleIntegerProperty;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableSet;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
@@ -43,6 +37,14 @@ import java.util.List;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.atomic.AtomicInteger;
+import javafx.beans.property.BooleanProperty;
+import javafx.beans.property.IntegerProperty;
+import javafx.beans.property.SimpleBooleanProperty;
+import javafx.beans.property.SimpleIntegerProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Audio segment containing all related metadata and a dynamic collection of audio packets.  An audio segment can be
@@ -138,6 +140,15 @@ public class AudioSegment implements Listener<IdentifierUpdateNotification>
         return mComplete;
     }
 
+    /**
+     * Indicates if this audio segment is completed.
+     * @return true if completed.
+     */
+    public boolean isComplete()
+    {
+        return mComplete.get();
+    }
+
     /**
      * Duplicate call audio property.  This flag is set to true whenever a duplicate call detection function detects
      * an audio segment is a duplicate.

src/main/java/io/github/dsheirer/audio/broadcast/AudioStreamingBroadcaster.java

@@ -25,19 +25,15 @@ import io.github.dsheirer.audio.convert.MP3FrameTools;
 import io.github.dsheirer.audio.convert.MP3Setting;
 import io.github.dsheirer.identifier.IdentifierCollection;
 import io.github.dsheirer.util.ThreadPool;
-import org.apache.commons.math3.util.FastMath;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.nio.file.Files;
-import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.LinkedTransferQueue;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public abstract class AudioStreamingBroadcaster<T extends BroadcastConfiguration> extends AbstractAudioBroadcaster<T>
 {
@@ -255,7 +251,6 @@ public abstract class AudioStreamingBroadcaster<T extends BroadcastConfiguration
     public boolean canConnect()
     {
         BroadcastState state = getBroadcastState();
-
         return state != BroadcastState.CONNECTED && !state.isErrorState();
     }
 

src/main/java/io/github/dsheirer/audio/broadcast/BroadcastModel.java

@@ -26,13 +26,6 @@ import io.github.dsheirer.properties.SystemProperties;
 import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.util.ThreadPool;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableList;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.swing.*;
-import javax.swing.table.AbstractTableModel;
 import java.io.IOException;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
@@ -48,6 +41,12 @@ import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.table.AbstractTableModel;
 
 public class BroadcastModel extends AbstractTableModel implements Listener<AudioRecording>
 {
@@ -58,7 +57,7 @@ public class BroadcastModel extends AbstractTableModel implements Listener<Audio
 
     private static final String UNIQUE_NAME_REGEX = "(.*)\\((\\d*)\\)";
 
-    public static final int COLUMN_SERVER_ICON = 0;
+    public static final int COLUMN_BROADCAST_SERVER_TYPE = 0;
     public static final int COLUMN_STREAM_NAME = 1;
     public static final int COLUMN_BROADCASTER_STATUS = 2;
     public static final int COLUMN_BROADCASTER_QUEUE_SIZE = 3;
@@ -67,7 +66,7 @@ public class BroadcastModel extends AbstractTableModel implements Listener<Audio
     public static final int COLUMN_BROADCASTER_ERROR_COUNT = 6;
 
     public static final String[] COLUMN_NAMES = new String[]
-        {"Streaming", "Name", "Status", "Queued", "Streamed/Uploaded", "Aged Off", "Upload Error"};
+        {"Stream Type", "Name", "Status", "Queued", "Streamed/Uploaded", "Aged Off", "Upload Error"};
 
     private ObservableList<ConfiguredBroadcast> mConfiguredBroadcasts =
         FXCollections.observableArrayList(ConfiguredBroadcast.extractor());
@@ -575,15 +574,8 @@ public class BroadcastModel extends AbstractTableModel implements Listener<Audio
                 {
                     switch(columnIndex)
                     {
-                        case COLUMN_SERVER_ICON:
-                            String iconPath = configuredBroadcast.getBroadcastConfiguration()
-                                .getBroadcastServerType().getIconPath();
-
-                            if(iconPath != null && mIconModel != null)
-                            {
-                                return mIconModel.getScaledIcon(iconPath, 14);
-                            }
-                            break;
+                        case COLUMN_BROADCAST_SERVER_TYPE:
+                            return configuredBroadcast.getBroadcastServerType();
                         case COLUMN_STREAM_NAME:
                             return configuredBroadcast.getBroadcastConfiguration().getName();
                         case COLUMN_BROADCASTER_STATUS:
@@ -653,8 +645,8 @@ public class BroadcastModel extends AbstractTableModel implements Listener<Audio
             case COLUMN_BROADCASTER_STREAMED_COUNT:
             case COLUMN_BROADCASTER_ERROR_COUNT:
                 return Integer.class;
-            case COLUMN_SERVER_ICON:
-                return ImageIcon.class;
+            case COLUMN_BROADCAST_SERVER_TYPE:
+                return BroadcastServerType.class;
             case COLUMN_STREAM_NAME:
             default:
                 return String.class;

src/main/java/io/github/dsheirer/audio/broadcast/BroadcastServerType.java

@@ -1,6 +1,6 @@
-/*******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2016 Dennis Sheirer
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,8 +14,8 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- ******************************************************************************/
+ * ****************************************************************************
+ */
 package io.github.dsheirer.audio.broadcast;
 
 public enum BroadcastServerType
@@ -23,17 +23,17 @@ public enum BroadcastServerType
     /**
      * Broadcastify feeds (ie streaming) service
      */
-    BROADCASTIFY("Broadcastify Feed", "/images/broadcastify.png"), //Icecast Server 2.3.2
+    BROADCASTIFY("Broadcastify Feed", "images/broadcastify.png"), //Icecast Server 2.3.2
 
     /**
      * Broadcastify calls - completed audio recording push service
      */
-    BROADCASTIFY_CALL("Broadcastify Call", "/images/broadcastify.png"),
+    BROADCASTIFY_CALL("Broadcastify Call", "images/broadcastify.png"),
 
-    ICECAST_HTTP("Icecast 2 (v2.4+)", "/images/icecast.png"),
-    ICECAST_TCP("Icecast (v2.3)", "/images/icecast.png"),
-    SHOUTCAST_V1("Shoutcast v1.x", "/images/shoutcast.png"),
-    SHOUTCAST_V2("Shoutcast v2.x", "/images/shoutcast.png"),
+    ICECAST_HTTP("Icecast 2 (v2.4+)", "images/icecast.png"),
+    ICECAST_TCP("Icecast (v2.3)", "images/icecast.png"),
+    SHOUTCAST_V1("Shoutcast v1.x", "images/shoutcast.png"),
+    SHOUTCAST_V2("Shoutcast v2.x", "images/shoutcast.png"),
     UNKNOWN("Unknown", null);
 
     private String mLabel;

src/main/java/io/github/dsheirer/audio/broadcast/BroadcastState.java

@@ -1,6 +1,6 @@
-/*******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2016 Dennis Sheirer
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,8 +14,8 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- ******************************************************************************/
+ * ****************************************************************************
+ */
 package io.github.dsheirer.audio.broadcast;
 
 public enum BroadcastState
@@ -103,10 +103,10 @@ public enum BroadcastState
     private String mLabel;
     private boolean mErrorState;
 
-    private BroadcastState(String label, boolean connected)
+    BroadcastState(String label, boolean errorState)
     {
         mLabel = label;
-        mErrorState = connected;
+        mErrorState = errorState;
     }
 
     public String toString()

src/main/java/io/github/dsheirer/audio/broadcast/BroadcastStatusPanel.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2019 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,23 +14,29 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.audio.broadcast;
 
+import io.github.dsheirer.icon.Icon;
+import io.github.dsheirer.icon.IconModel;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.preference.swing.JTableColumnWidthMonitor;
+import java.awt.Color;
+import java.awt.Component;
 import net.miginfocom.swing.MigLayout;
 
+import javax.swing.ImageIcon;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JTable;
 import javax.swing.SwingConstants;
 import javax.swing.table.DefaultTableCellRenderer;
-import java.awt.Color;
-import java.awt.Component;
 
+/**
+ * Table of broadcast streams and statuses.
+ */
 public class BroadcastStatusPanel extends JPanel
 {
     private JTable mTable;
@@ -41,6 +46,12 @@ public class BroadcastStatusPanel extends JPanel
     private UserPreferences mUserPreferences;
     private String mPreferenceKey;
 
+    /**
+     * Constructs an instance
+     * @param broadcastModel to access the streams
+     * @param userPreferences for configuring the panel
+     * @param preferenceKey to store column preferences for this panel.
+     */
     public BroadcastStatusPanel(BroadcastModel broadcastModel, UserPreferences userPreferences, String preferenceKey)
     {
         mBroadcastModel = broadcastModel;
@@ -65,6 +76,7 @@ public class BroadcastStatusPanel extends JPanel
         renderer.setHorizontalAlignment(SwingConstants.CENTER);
 
         mTable.getColumnModel().getColumn(BroadcastModel.COLUMN_BROADCASTER_STATUS).setCellRenderer(new StatusCellRenderer());
+        mTable.getColumnModel().getColumn(BroadcastModel.COLUMN_BROADCAST_SERVER_TYPE).setCellRenderer(new ServerTypeRenderer());
         mColumnWidthMonitor = new JTableColumnWidthMonitor(mUserPreferences, mTable, mPreferenceKey);
 
         mScrollPane = new JScrollPane(mTable);
@@ -72,6 +84,37 @@ public class BroadcastStatusPanel extends JPanel
         add(mScrollPane);
     }
 
+    public class ServerTypeRenderer extends DefaultTableCellRenderer
+    {
+        public ServerTypeRenderer()
+        {
+            setOpaque(true);
+            setHorizontalAlignment(SwingConstants.CENTER);
+        }
+
+        @Override
+        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
+        {
+            JLabel component = (JLabel)super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
+
+            if(value instanceof BroadcastServerType broadcastServerType)
+            {
+                component.setText(broadcastServerType.toString());
+                Icon icon = new Icon("empty", broadcastServerType.getIconPath());
+                ImageIcon imageIcon = icon.getIcon();
+                ImageIcon scaledIcon = IconModel.getScaledIcon(imageIcon, 13);
+                component.setIcon(scaledIcon);
+            }
+            else
+            {
+                component.setText(null);
+                component.setIcon(null);
+            }
+
+            return component;
+        }
+    }
+
     /**
      * Custom cell renderer for the broadcast state column.
      */

src/main/java/io/github/dsheirer/audio/broadcast/icecast/IcecastHTTPAudioBroadcaster.java

@@ -20,13 +20,20 @@ package io.github.dsheirer.audio.broadcast.icecast;
 
 import io.github.dsheirer.alias.AliasModel;
 import io.github.dsheirer.audio.broadcast.BroadcastState;
-import io.github.dsheirer.audio.broadcast.icecast.IcecastMetadata;
 import io.github.dsheirer.audio.convert.InputAudioFormat;
 import io.github.dsheirer.audio.convert.MP3AudioConverter;
 import io.github.dsheirer.audio.convert.MP3Setting;
 import io.github.dsheirer.identifier.IdentifierCollection;
 import io.github.dsheirer.properties.SystemProperties;
 import io.github.dsheirer.util.ThreadPool;
+import java.net.ConnectException;
+import java.net.InetSocketAddress;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import org.apache.mina.core.RuntimeIoException;
 import org.apache.mina.core.buffer.IoBuffer;
 import org.apache.mina.core.future.ConnectFuture;
@@ -42,13 +49,6 @@ import org.apache.mina.transport.socket.nio.NioSocketConnector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.net.ConnectException;
-import java.net.InetSocketAddress;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicBoolean;
-
 public class IcecastHTTPAudioBroadcaster extends IcecastAudioBroadcaster
 {
     private static final Logger mLog = LoggerFactory.getLogger(IcecastHTTPAudioBroadcaster.class);
@@ -143,8 +143,9 @@ public class IcecastHTTPAudioBroadcaster extends IcecastAudioBroadcaster
                 mSocketConnector = new NioSocketConnector();
                 mSocketConnector.setConnectTimeoutCheckInterval(10000);
 
-//                mSocketConnector.getFilterChain().addLast("logger",
-//                    new LoggingFilter(IcecastHTTPAudioBroadcaster.class));
+//                LoggingFilter loggingFilter = new LoggingFilter(IcecastHTTPAudioBroadcaster.class);
+//                loggingFilter.setMessageReceivedLogLevel(LogLevel.DEBUG);
+//                mSocketConnector.getFilterChain().addLast("logger", loggingFilter);
 
                 mSocketConnector.getFilterChain().addLast("codec", new HttpClientCodec());
                 mSocketConnector.setHandler(new IcecastHTTPIOHandler());
@@ -315,10 +316,49 @@ public class IcecastHTTPAudioBroadcaster extends IcecastAudioBroadcaster
                  * intercept the out of bounds exception and then inspect the message hex dump to see if it's an
                  * OK response and then play like everything is well and good.
                  */
-                if(cause instanceof ArrayIndexOutOfBoundsException &&
-                    ((ProtocolDecoderException)throwable).getHexdump().startsWith(HTTP_1_0_OK_HEX_DUMP))
+                if(cause instanceof ArrayIndexOutOfBoundsException)
                 {
-                    setBroadcastState(BroadcastState.CONNECTED);
+                    String hexDump = ((ProtocolDecoderException)throwable).getHexdump();
+
+                    if(hexDump.startsWith(HTTP_1_0_OK_HEX_DUMP))
+                    {
+                        setBroadcastState(BroadcastState.CONNECTED);
+                    }
+                    else
+                    {
+                        HttpDumpMessage message = new HttpDumpMessage(hexDump);
+
+                        if(message.hasHttpResponseCode())
+                        {
+                            switch(message.getHttpResponseCode())
+                            {
+                                case 403: //Forbidden
+                                    if(message.toString().contains("Mountpoint in use"))
+                                    {
+                                        mLog.error("Stream [" + getStreamName() + "] - unable to connect - mountpoint in use");
+                                        setBroadcastState(BroadcastState.MOUNT_POINT_IN_USE);
+                                        disconnect();
+                                    }
+                                    else
+                                    {
+                                        mLog.error("String [" + getStreamName() + "] - HTTP protocol decoder error - message:\n\n" + message);
+                                        setBroadcastState(BroadcastState.DISCONNECTED);
+                                        disconnect();
+                                    }
+                                    break;
+                                default:
+                                    mLog.error("String [" + getStreamName() + "] - HTTP protocol decoder error - message:\n\n" + message);
+                                    setBroadcastState(BroadcastState.DISCONNECTED);
+                                    disconnect();
+                            }
+                        }
+                        else
+                        {
+                            mLog.error("HTTP protocol decoder error - message:\n\n" + message);
+                            setBroadcastState(BroadcastState.DISCONNECTED);
+                            disconnect();
+                        }
+                    }
                 }
                 else
                 {
@@ -374,4 +414,97 @@ public class IcecastHTTPAudioBroadcaster extends IcecastAudioBroadcaster
             }
         }
     }
+
+    /**
+     * Class for parsing HTTP response messages from Icecast 2.4.2+
+     */
+    public class HttpDumpMessage
+    {
+        private String mHexDump;
+        private String mMessage;
+        private int mHttpResponseCode = -1;
+
+        public HttpDumpMessage(String hexDump)
+        {
+            mHexDump = hexDump;
+
+            String[] split = mHexDump.split(" ");
+            byte[] bytes = new byte[split.length];
+
+            int pointer = 0;
+            for(String a : split)
+            {
+                try
+                {
+                    int value = Integer.parseInt(a, 16);
+                    bytes[pointer++] = (byte) (value & 0xFF);
+                }
+                catch(Exception e)
+                {
+                    pointer++;
+                }
+            }
+
+            mMessage = new String(bytes);
+
+            Pattern pattern = Pattern.compile("HTTP/1.0 (\\d{3})");
+            Matcher m = pattern.matcher(mMessage);
+
+            if(m.find())
+            {
+                try
+                {
+                    mHttpResponseCode = Integer.parseInt(m.group(1));
+                }
+                catch(Exception e)
+                {
+                    mLog.error("Unable to parse HTTP response code that was matched from message: " + m.group(1));
+                }
+            }
+        }
+
+        /**
+         * Indicates if an HTTP response code was parsed from the message
+         * @return true if it was parsed.
+         */
+        public boolean hasHttpResponseCode()
+        {
+            return mHttpResponseCode != -1;
+        }
+
+        /**
+         * Response code parsed from the hexdump message
+         * @return value.
+         */
+        public int getHttpResponseCode()
+        {
+            return mHttpResponseCode;
+        }
+
+        @Override
+        public String toString()
+        {
+            return mMessage;
+        }
+    }
+
+    public static void main(String[] args)
+    {
+        String text = "HTTP/1.0 403 Forbidden";
+
+        Pattern pattern = Pattern.compile("HTTP/1.0 (\\d{3})");
+
+        Matcher m = pattern.matcher(text);
+
+        if(m.find())
+        {
+            mLog.info("Matching Group Count: " + m.groupCount());
+            mLog.info("Match 0: " + m.group(0));
+            mLog.info("Match 1: " + m.group(1));
+        }
+        else
+        {
+            mLog.info("No Match");
+        }
+    }
 }

src/main/java/io/github/dsheirer/audio/broadcast/icecast/IcecastTCPAudioBroadcaster.java

@@ -21,13 +21,19 @@ package io.github.dsheirer.audio.broadcast.icecast;
 import io.github.dsheirer.alias.AliasModel;
 import io.github.dsheirer.audio.broadcast.BroadcastState;
 import io.github.dsheirer.audio.broadcast.icecast.codec.IcecastCodecFactory;
-import io.github.dsheirer.audio.broadcast.icecast.IcecastMetadata;
 import io.github.dsheirer.audio.convert.InputAudioFormat;
 import io.github.dsheirer.audio.convert.MP3AudioConverter;
 import io.github.dsheirer.audio.convert.MP3Setting;
 import io.github.dsheirer.identifier.IdentifierCollection;
 import io.github.dsheirer.properties.SystemProperties;
 import io.github.dsheirer.util.ThreadPool;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.SocketException;
+import java.nio.channels.UnresolvedAddressException;
+import java.util.Arrays;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 import org.apache.mina.core.RuntimeIoException;
 import org.apache.mina.core.future.ConnectFuture;
 import org.apache.mina.core.service.IoHandlerAdapter;
@@ -37,14 +43,6 @@ import org.apache.mina.transport.socket.nio.NioSocketConnector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.net.InetSocketAddress;
-import java.net.SocketException;
-import java.nio.channels.UnresolvedAddressException;
-import java.util.Arrays;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-
 public class IcecastTCPAudioBroadcaster extends IcecastAudioBroadcaster
 {
     private final static Logger mLog = LoggerFactory.getLogger(IcecastTCPAudioBroadcaster.class);
@@ -215,7 +213,13 @@ public class IcecastTCPAudioBroadcaster extends IcecastAudioBroadcaster
         }
         else
         {
-            setBroadcastState(BroadcastState.DISCONNECTED);
+            //Only set broadcast state to disconnected if it's not already in an error state, to prevent a restart.  We
+            //want to preserve the error state that got us here, so the user can see it.
+            if(!getBroadcastState().isErrorState())
+            {
+                setBroadcastState(BroadcastState.DISCONNECTED);
+            }
+
             mLastConnectionAttempt = System.currentTimeMillis();
         }
     }

src/main/java/io/github/dsheirer/audio/codec/mbe/JmbeAudioModule.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.audio.codec.mbe;
@@ -32,11 +29,6 @@ import io.github.dsheirer.message.IMessageListener;
 import io.github.dsheirer.preference.PreferenceType;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.sample.Listener;
-import jmbe.iface.IAudioCodec;
-import jmbe.iface.IAudioCodecLibrary;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.lang.reflect.InvocationTargetException;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -44,15 +36,20 @@ import java.net.URLClassLoader;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
+import jmbe.iface.IAudioCodec;
+import jmbe.iface.IAudioCodecLibrary;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public abstract class JmbeAudioModule extends AbstractAudioModule implements Listener<IMessage>, IMessageListener,
     ISquelchStateListener
 {
     private static final Logger mLog = LoggerFactory.getLogger(JmbeAudioModule.class);
     private static final String JMBE_AUDIO_LIBRARY = "JMBE";
-    private static List<String> mLibraryLoadStatusLogged = new ArrayList<>();
+    private static final List<String> mLibraryLoadStatusLogged = new ArrayList<>();
     private IAudioCodec mAudioCodec;
-    private UserPreferences mUserPreferences;
+    private final UserPreferences mUserPreferences;
+    private static Class sLoadedJmbeAudioConverterClass;
 
     public JmbeAudioModule(UserPreferences userPreferences, AliasList aliasList, int timeslot)
     {
@@ -70,7 +67,7 @@ public abstract class JmbeAudioModule extends AbstractAudioModule implements Lis
         mAudioCodec = null;
     }
 
-    protected IAudioCodec getAudioCodec()
+    public IAudioCodec getAudioCodec()
     {
         return mAudioCodec;
     }
@@ -110,38 +107,67 @@ public abstract class JmbeAudioModule extends AbstractAudioModule implements Lis
     protected abstract String getCodecName();
 
     /**
-     * Loads audio frame processing chain.  Constructs an imbe targetdataline
-     * to receive the raw imbe frames.  Adds an IMBE to 8k PCM format conversion
-     * stream wrapper.  Finally, adds an upsampling (8k to 48k) stream wrapper.
+     * Loads JMBE audio converter library class and then instantiates new converter instances from the loaded class.
      */
     protected void loadConverter()
     {
         IAudioCodec audioConverter = null;
 
-        Path path = mUserPreferences.getJmbeLibraryPreference().getPathJmbeLibrary();
-
-        if(path != null)
+        if(sLoadedJmbeAudioConverterClass == null)
         {
-            try
+            Path path = mUserPreferences.getJmbeLibraryPreference().getPathJmbeLibrary();
+
+            if(path != null)
             {
                 if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
                 {
-                    mLog.info("Loading JMBE library from [" + path.toString() + "]");
+                    mLog.info("Loading JMBE library from [" + path + "]");
                 }
 
-                URLClassLoader childClassLoader = new URLClassLoader(new URL[]{path.toUri().toURL()},
-                    this.getClass().getClassLoader());
-
-                Class classToLoad = Class.forName("jmbe.JMBEAudioLibrary", true, childClassLoader);
-
-                Object instance = classToLoad.getDeclaredConstructor().newInstance();
-
-                if(instance instanceof IAudioCodecLibrary)
+                try
                 {
-                    IAudioCodecLibrary library = (IAudioCodecLibrary)instance;
+                    URLClassLoader childClassLoader = new URLClassLoader(new URL[]{path.toUri().toURL()},
+                            this.getClass().getClassLoader());
 
+                    sLoadedJmbeAudioConverterClass = Class.forName("jmbe.JMBEAudioLibrary", true, childClassLoader);
+                }
+                catch(IllegalArgumentException iae)
+                {
+                    if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY + getCodecName()))
+                    {
+                        mLog.error("Couldn't load JMBE audio conversion library - " + iae.getMessage());
+                        mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY + getCodecName());
+                    }
+                }
+                catch(MalformedURLException mue)
+                {
+                    if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
+                    {
+                        mLog.error("Couldn't load JMBE audio conversion library from path [" + path + "]");
+                        mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
+                    }
+                }
+                catch(ClassNotFoundException e1)
+                {
+                    if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
+                    {
+                        mLog.error("Couldn't load JMBE audio conversion library - class not found");
+                        mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
+                    }
+                }
+            }
+        }
+
+        if(sLoadedJmbeAudioConverterClass != null)
+        {
+            try
+            {
+                Object instance = sLoadedJmbeAudioConverterClass.getDeclaredConstructor().newInstance();
+
+                if(instance instanceof IAudioCodecLibrary library)
+                {
                     if((library.getMajorVersion() == 1 && library.getMinorVersion() >= 0 &&
-                        library.getBuildVersion() >= 0) || library.getMajorVersion() >= 1)
+                            library.getBuildVersion() >= 0) || library.getMajorVersion() >= 1)
                     {
                         audioConverter = library.getAudioConverter(getCodecName());
 
@@ -169,38 +195,6 @@ public abstract class JmbeAudioModule extends AbstractAudioModule implements Lis
                     }
                 }
             }
-            catch(IllegalArgumentException iae)
-            {
-                if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY + getCodecName()))
-                {
-                    mLog.error("Couldn't load JMBE audio conversion library - " + iae.getMessage());
-                    mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY + getCodecName());
-                }
-            }
-            catch(NoSuchMethodException nsme)
-            {
-                if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
-                {
-                    mLog.error("Couldn't load JMBE audio conversion library - no such method exception");
-                    mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
-                }
-            }
-            catch(MalformedURLException mue)
-            {
-                if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
-                {
-                    mLog.error("Couldn't load JMBE audio conversion library from path [" + path + "]");
-                    mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
-                }
-            }
-            catch(ClassNotFoundException e1)
-            {
-                if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
-                {
-                    mLog.error("Couldn't load JMBE audio conversion library - class not found");
-                    mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
-                }
-            }
             catch(InvocationTargetException ite)
             {
                 if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
@@ -225,6 +219,14 @@ public abstract class JmbeAudioModule extends AbstractAudioModule implements Lis
                     mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
                 }
             }
+            catch(NoSuchMethodException nsme)
+            {
+                if(!mLibraryLoadStatusLogged.contains(JMBE_AUDIO_LIBRARY))
+                {
+                    mLog.error("Couldn't load JMBE audio conversion library - no such method exception");
+                    mLibraryLoadStatusLogged.add(JMBE_AUDIO_LIBRARY);
+                }
+            }
         }
         else
         {
@@ -235,13 +237,6 @@ public abstract class JmbeAudioModule extends AbstractAudioModule implements Lis
             }
         }
 
-        if(audioConverter != null)
-        {
-            mAudioCodec = audioConverter;
-        }
-        else
-        {
-            mAudioCodec = null;
-        }
+        mAudioCodec = audioConverter;
     }
 }

src/main/java/io/github/dsheirer/audio/codec/mbe/MBECallSequenceConverter.java

@@ -1,27 +1,46 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.audio.codec.mbe;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.github.dsheirer.alias.AliasList;
+import io.github.dsheirer.audio.AudioSegment;
+import io.github.dsheirer.identifier.IdentifierUpdateNotification;
+import io.github.dsheirer.module.decode.p25.audio.P25P1AudioModule;
+import io.github.dsheirer.module.decode.p25.audio.P25P1CallSequenceRecorder;
+import io.github.dsheirer.module.decode.p25.audio.VoiceFrame;
+import io.github.dsheirer.module.decode.p25.identifier.radio.APCO25RadioIdentifier;
+import io.github.dsheirer.module.decode.p25.identifier.talkgroup.APCO25Talkgroup;
+import io.github.dsheirer.preference.UserPreferences;
+import io.github.dsheirer.record.AudioSegmentRecorder;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Collection;
+import jmbe.iface.IAudioCodec;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.filefilter.DirectoryFileFilter;
+import org.apache.commons.io.filefilter.SuffixFileFilter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,79 +51,130 @@ public class MBECallSequenceConverter
 {
     private final static Logger mLog = LoggerFactory.getLogger(MBECallSequenceConverter.class);
 
-//    public static void convert(Path input, Path output) throws IOException
-//    {
-//        InputStream inputStream = Files.newInputStream(input);
-//        ObjectMapper mapper = new ObjectMapper();
-//        MBECallSequence sequence = mapper.readValue(inputStream, MBECallSequence.class);
-//        convert(sequence, output);
-//    }
-//
-//    public static void convert(MBECallSequence callSequence, Path outputPath)
-//    {
-//        if(callSequence == null || callSequence.isEncrypted())
-//        {
-//            throw new IllegalArgumentException("Cannot decode null or encrypted call sequence");
-//        }
-//
-//        if(callSequence != null && !callSequence.isEncrypted())
-//        {
-//            ThumbDv.AudioProtocol protocol = ThumbDv.AudioProtocol.P25_PHASE2;
-//
-//            AudioPacketWaveRecorder recorder = new AudioPacketWaveRecorder(outputPath);
-//            recorder.start();
-//
-//            long delayMillis = 0;
-//
-//            try(ThumbDv thumbDv = new ThumbDv(protocol, recorder))
-//            {
-//                thumbDv.start();
-//                for(VoiceFrame voiceFrame: callSequence.getVoiceFrames())
-//                {
-//                    mLog.debug("Frame [" + voiceFrame.getFrame() + "] + Hex [" + AmbeResponse.toHex(voiceFrame.getFrameBytes()) + "]");
-//                    thumbDv.decode(voiceFrame.getFrameBytes());
-//                    delayMillis += 30;
-//                }
-//
-//                if(delayMillis > 0)
-//                {
-//                    delayMillis += 1000;
-//                    try
-//                    {
-//                        Thread.sleep(delayMillis);
-//                    }
-//                    catch(InterruptedException ie)
-//                    {
-//
-//                    }
-//                }
-//            }
-//            catch(IOException ioe)
-//            {
-//                mLog.error("Error", ioe);
-//            }
-//
-//            recorder.stop(Paths.get(outputPath.toString().replace(".tmp", ".wav")), new WaveMetadata());
-//        }
-//    }
-//
-//    public static void main(String[] args)
-//    {
-//        String mbe = "/home/denny/SDRTrunk/recordings/20190331085324_154250000_3_TS0_65084_6591007.mbe";
-//        String mbe = "/home/denny/SDRTrunk/recordings/20190331085324_154250000_2_TS1_65035.mbe";
-//
-//        Path input = Paths.get(mbe);
-//        Path output = Paths.get(mbe.replace(".mbe", ".tmp"));
-//
-//        mLog.info("Converting: " + mbe);
-//
-//        try
-//        {
-//            MBECallSequenceConverter.convert(input, output);
-//        }
-//        catch(IOException ioe)
-//        {
-//            mLog.error("Error", ioe);
-//        }
-//    }
+    /**
+     * Converts the input MBE file to PCM audio and writes to the output wave file.
+     * @param input path to the MBE file.
+     * @param output path to write the WAVE recording.
+     * @throws IOException if there is an error.
+     */
+    public static void convert(Path input, Path output) throws IOException
+    {
+        InputStream inputStream = Files.newInputStream(input);
+        ObjectMapper mapper = new ObjectMapper();
+        MBECallSequence sequence = mapper.readValue(inputStream, MBECallSequence.class);
+        convert(sequence, output);
+    }
+
+    public static void convert(MBECallSequence callSequence, Path outputPath)
+    {
+        if(callSequence == null || callSequence.isEncrypted())
+        {
+            throw new IllegalArgumentException("Cannot decode null or encrypted call sequence");
+        }
+
+        if(callSequence != null)
+        {
+            if(callSequence.getProtocol().equals(P25P1CallSequenceRecorder.PROTOCOL))
+            {
+                P25P1AudioModule audioModule = new P25P1AudioModule(new UserPreferences(), new AliasList("mbe generator"));
+                audioModule.setRecordAudio(true);
+                audioModule.start();
+
+                if(callSequence.getFromIdentifier() != null)
+                {
+                    int from = 0;
+
+                    try
+                    {
+                        from = Integer.parseInt(callSequence.getFromIdentifier());
+                        audioModule.getIdentifierUpdateListener().receive(new IdentifierUpdateNotification(APCO25RadioIdentifier.createFrom(from),
+                                IdentifierUpdateNotification.Operation.ADD, 0));
+                    }
+                    catch(Exception e)
+                    {
+                        mLog.error("Error parsing from identifier from value [" + callSequence.getFromIdentifier());
+                    }
+                }
+
+                if(callSequence.getToIdentifier() != null)
+                {
+                    int to = 0;
+
+                    try
+                    {
+                        to = Integer.parseInt(callSequence.getToIdentifier());
+                        audioModule.getIdentifierUpdateListener().receive(new IdentifierUpdateNotification(APCO25Talkgroup.create(to),
+                                IdentifierUpdateNotification.Operation.ADD, 0));
+                    }
+                    catch(Exception e)
+                    {
+                        mLog.error("Error parsing from identifier from value [" + callSequence.getFromIdentifier());
+                    }
+                }
+
+                IAudioCodec codec = audioModule.getAudioCodec();
+
+                for(VoiceFrame voiceFrame: callSequence.getVoiceFrames())
+                {
+                    byte[] frameBytes = voiceFrame.getFrameBytes();
+                    float[] audio = codec.getAudio(frameBytes);
+                    audioModule.addAudio(audio);
+                }
+
+                AudioSegment audioSegment = audioModule.getAudioSegment();
+
+                try
+                {
+                    AudioSegmentRecorder.recordWAVE(audioSegment, outputPath);
+                }
+                catch(IOException ioe)
+                {
+                    mLog.error("Error writing audio segment, ioe");
+                }
+
+                audioModule.stop();
+            }
+        }
+    }
+
+    public static void main(String[] args)
+    {
+        boolean all = true;
+
+        String path = "/home/denny/SDRTrunk/recordings";
+        Path input = Paths.get(path);
+
+        if(all)
+        {
+            Collection<File> mbeFiles = FileUtils.listFiles(input.toFile(), new SuffixFileFilter(".mbe"), DirectoryFileFilter.DIRECTORY);
+
+            for(File inputFile: mbeFiles)
+            {
+                Path output = Paths.get(inputFile.getAbsolutePath().replace(".mbe", ".wav"));
+                mLog.info("Converting: " + inputFile);
+                try
+                {
+                    MBECallSequenceConverter.convert(inputFile.toPath(), output);
+                }
+                catch(IOException ioe)
+                {
+                    mLog.error("Error", ioe);
+                }
+            }
+        }
+        else
+        {
+            Path output = Paths.get(path.replace(".mbe", ".wav"));
+            mLog.info("Converting: " + path);
+
+            try
+            {
+                MBECallSequenceConverter.convert(input, output);
+            }
+            catch(IOException ioe)
+            {
+                mLog.error("Error", ioe);
+            }
+        }
+    }
 }

src/main/java/io/github/dsheirer/audio/convert/InputAudioFormat.java

@@ -20,6 +20,7 @@
 package io.github.dsheirer.audio.convert;
 
 import io.github.dsheirer.audio.AudioFormats;
+import java.util.EnumSet;
 
 import javax.sound.sampled.AudioFormat;
 
@@ -29,8 +30,8 @@ import javax.sound.sampled.AudioFormat;
 public enum InputAudioFormat
 {
     SR_8000(AudioFormats.PCM_SIGNED_8000_HZ_16_BIT_MONO, "16-Bit 8000 Hz (no resample)"),
-    SR_16000(AudioFormats.PCM_SIGNED_16000_HZ_16_BIT_MONO, "16-Bit 16000 Hz"),
-    SR_22050(AudioFormats.PCM_SIGNED_22050_HZ_16_BIT_MONO, "16-Bit 22050 Hz (default)"),
+    SR_16000(AudioFormats.PCM_SIGNED_16000_HZ_16_BIT_MONO, "16-Bit 16000 Hz (default)"),
+    SR_22050(AudioFormats.PCM_SIGNED_22050_HZ_16_BIT_MONO, "16-Bit 22050 Hz"),
     SR_44100(AudioFormats.PCM_SIGNED_44100_HZ_16_BIT_MONO, "16-Bit 44100 Hz"),
 
     SR_32_8000(AudioFormats.PCM_SIGNED_8000_HZ_32_BIT_MONO, "32-Bit 8000 Hz (no resample)"),
@@ -41,6 +42,17 @@ public enum InputAudioFormat
     private AudioFormat mAudioFormat;
     private String mLabel;
 
+    /**
+     * Set that includes sample rates of 8 or 16 kHz
+     */
+    public static final EnumSet<InputAudioFormat> SAMPLE_RATES_8_16 = EnumSet.of(SR_8000, SR_32_8000, SR_16000, SR_32_16000);
+
+    /**
+     * Set that includes sample rates of 8, 16, or 22 kHz
+     */
+    public static final EnumSet<InputAudioFormat> SAMPLE_RATES_8_16_22 = EnumSet.of(SR_8000, SR_32_8000, SR_16000,
+            SR_32_16000, SR_22050, SR_32_22050);
+
     /**
      * Constructs an instance
      * @param audioFormat for the specified sample rate
@@ -56,7 +68,7 @@ public enum InputAudioFormat
      */
     public static InputAudioFormat getDefault()
     {
-        return SR_22050;
+        return SR_16000;
     }
 
     /**

src/main/java/io/github/dsheirer/audio/convert/MP3AudioConverter.java

@@ -57,19 +57,20 @@ public class MP3AudioConverter implements IAudioConverter
     public MP3AudioConverter(InputAudioFormat inputAudioFormat, MP3Setting setting, boolean normalizeAudio)
     {
         mInputAudioFormat = inputAudioFormat;
-
         mEncoder = LameFactory.getLameEncoder(inputAudioFormat, setting);
-        if(inputAudioFormat.getSampleRate() != mEncoder.getEffectiveSampleRate())
-        {
-            mLog.warn("MP3 encoder setting '" + setting + "' doesn't support sample rate '" + inputAudioFormat + "', resampling disabled. Increase bitrate or decrease sample rate to fix.");
-            mInputAudioFormat = InputAudioFormat.SR_8000;
-            mEncoder = LameFactory.getLameEncoder(mInputAudioFormat, setting);
-        }
-
         mNormalizeAudio = normalizeAudio;
 
+        //Ensure input audio sample rate is supported for the MP3 setting and update as necessary - should never happen.
+        if((mInputAudioFormat.getSampleRate() - mEncoder.getEffectiveSampleRate()) > 1.0)
+        {
+            mInputAudioFormat = InputAudioFormat.getDefault();
+            mLog.warn("MP3 setting [" + setting + "] does not support requested input audio sample rate [" +
+                    inputAudioFormat + "] - using default sample rate [" + mInputAudioFormat + "]");
+            mEncoder = LameFactory.getLameEncoder(inputAudioFormat, setting);
+        }
+
         //Resampling is only required if desired input sample rate is not system default of 8kHz
-        if(inputAudioFormat != InputAudioFormat.SR_8000 && inputAudioFormat != InputAudioFormat.SR_32_8000)
+        if(mInputAudioFormat != InputAudioFormat.SR_8000 && mInputAudioFormat != InputAudioFormat.SR_32_8000)
         {
             mResampler = LameFactory.getResampler(inputAudioFormat);
         }

src/main/java/io/github/dsheirer/audio/convert/MP3Header.java

@@ -100,7 +100,7 @@ public class MP3Header
      */
     public static boolean isPadded(byte[] frame, int offset)
     {
-        return (frame[offset + 2] & 0x01) == 1;
+        return (frame[offset + 2] & 0x02) == 0x02;
     }
 
     /**

src/main/java/io/github/dsheirer/audio/convert/MP3Setting.java

@@ -19,6 +19,8 @@
 
 package io.github.dsheirer.audio.convert;
 
+import java.util.Arrays;
+import java.util.List;
 import net.sourceforge.lame.mp3.Lame;
 
 /**
@@ -79,6 +81,30 @@ public enum MP3Setting
         return mSetting;
     }
 
+    /**
+     * Input audio formats that are supported by the MP3Setting value.
+     * @return list of supported input audio sample rates.
+     */
+    public List<InputAudioFormat> getSupportedSampleRates()
+    {
+        switch(this)
+        {
+            case CBR_16:
+            {
+                return InputAudioFormat.SAMPLE_RATES_8_16.stream().toList();
+            }
+            case CBR_32:
+            case VBR_7:
+            {
+                return InputAudioFormat.SAMPLE_RATES_8_16_22.stream().toList();
+            }
+            default:
+            {
+                return Arrays.stream(InputAudioFormat.values()).toList();
+            }
+        }
+    }
+
     @Override
     public String toString()
     {

src/main/java/io/github/dsheirer/audio/playback/AudioOutput.java

@@ -1,30 +1,27 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2020 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 package io.github.dsheirer.audio.playback;
 
 import com.google.common.eventbus.Subscribe;
-import io.github.dsheirer.alias.id.priority.Priority;
 import io.github.dsheirer.audio.AudioEvent;
 import io.github.dsheirer.audio.AudioSegment;
+import io.github.dsheirer.controller.NamingThreadFactory;
 import io.github.dsheirer.eventbus.MyEventBus;
 import io.github.dsheirer.identifier.IdentifierCollection;
 import io.github.dsheirer.identifier.IdentifierUpdateNotification;
@@ -33,11 +30,13 @@ import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.source.mixer.MixerChannel;
-import io.github.dsheirer.util.ThreadPool;
-import javafx.beans.property.BooleanProperty;
-import javafx.beans.property.IntegerProperty;
-import javafx.beans.property.SimpleBooleanProperty;
-import javafx.beans.property.SimpleIntegerProperty;
+import java.nio.ByteBuffer;
+import java.util.concurrent.Executors;
+import java.util.concurrent.LinkedTransferQueue;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -51,10 +50,6 @@ import javax.sound.sampled.LineListener;
 import javax.sound.sampled.LineUnavailableException;
 import javax.sound.sampled.Mixer;
 import javax.sound.sampled.SourceDataLine;
-import java.nio.ByteBuffer;
-import java.util.concurrent.ScheduledFuture;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.locks.ReentrantLock;
 
 /**
  * Audio output/playback channel for a single audio mixer channel.  Providers support for playback of audio segments
@@ -67,7 +62,6 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     private int mBufferStopThreshold;
     private Listener<IdentifierCollection> mIdentifierCollectionListener;
     private Broadcaster<AudioEvent> mAudioEventBroadcaster = new Broadcaster<>();
-    private ScheduledFuture<?> mProcessorFuture;
     private SourceDataLine mOutput;
     private Mixer mMixer;
     private MixerChannel mMixerChannel;
@@ -76,17 +70,17 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     private AudioEvent mAudioStartEvent;
     private AudioEvent mAudioStopEvent;
     private boolean mCanProcessAudio = false;
+    private LinkedTransferQueue<AudioSegment> mAudioSegmentQueue = new LinkedTransferQueue<>();
     private AudioSegment mCurrentAudioSegment;
-    private AudioSegment mNextAudioSegment;
-    private ReentrantLock mLock = new ReentrantLock();
     private int mCurrentBufferIndex = 0;
     private UserPreferences mUserPreferences;
-    private BooleanProperty mEmptyProperty = new SimpleBooleanProperty(true);
-    private IntegerProperty mAudioPriority = new SimpleIntegerProperty(Priority.DEFAULT_PRIORITY);
     private ByteBuffer mAudioSegmentStartTone;
-    private ByteBuffer mAudioSegmentPreemptTone;
     private ByteBuffer mAudioSegmentDropTone;
     private boolean mRunning = false;
+    private ScheduledExecutorService mScheduledExecutorService;
+    private ScheduledFuture<?> mProcessorFuture;
+    private long mOutputLastTimestamp = 0;
+    private static final long STALE_PLAYBACK_THRESHOLD_MS = 500;
 
     /**
      * Single audio channel playback with automatic starting and stopping of the
@@ -107,6 +101,8 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     {
         mMixer = mixer;
         mMixerChannel = mixerChannel;
+        mScheduledExecutorService = Executors.newSingleThreadScheduledExecutor(new NamingThreadFactory(
+                "sdrtrunk audio output " + mixerChannel.name()));
         mUserPreferences = userPreferences;
 
         try
@@ -150,7 +146,7 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
                     }
 
 					//Run the queue processor task every 100 milliseconds or 10 times a second
-                    mProcessorFuture = ThreadPool.SCHEDULED.scheduleAtFixedRate(new AudioSegmentProcessor(),
+                    mProcessorFuture = mScheduledExecutorService.scheduleAtFixedRate(new AudioSegmentProcessor(),
                         0, 100, TimeUnit.MILLISECONDS);
                 }
 
@@ -172,26 +168,17 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     }
 
     /**
-     * Boolean property that indicates if this audio output has an audio segment queued or in process of playback.
+     * Indicates if this audio output doesn't currently have any audio segments queued for playback.
+     * @return true if empty
      */
-    public BooleanProperty emptyProperty()
+    public boolean isEmpty()
     {
-        return mEmptyProperty;
+        return mAudioSegmentQueue.isEmpty();
     }
 
     /**
-     * Audio playback priority of the current audio segment or default audio priority if nothing is currently loaded.
-     */
-    public IntegerProperty audioPriorityProperty()
-    {
-        return mAudioPriority;
-    }
-
-    /**
-     * Schedules the audio segment for playback.
-     *
-     * Note: if a segment is currently playing and another audio segment is already queued for playback, invoking
-     * this method will overwrite the queued segment with the argument.
+     * Schedules the audio segment for playback.  The audio segment user count should already be incremented by the
+     * calling entity.
      *
      * @param audioSegment to schedule for playback.
      */
@@ -199,23 +186,8 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     {
         if(audioSegment != null)
         {
-            mLock.lock();
-
-            if(mNextAudioSegment != null)
-            {
-                mNextAudioSegment.decrementConsumerCount();
-                mNextAudioSegment = null;
-            }
-
-            try
-            {
-                mNextAudioSegment = audioSegment;
-                mEmptyProperty.set(false);
-            }
-            finally
-            {
-                mLock.unlock();
-            }
+            //Audio segment use count has already been incremented by the external caller.
+            mAudioSegmentQueue.add(audioSegment);
         }
     }
 
@@ -262,7 +234,6 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
     private void updateToneInsertionAudioClips()
     {
         mAudioSegmentStartTone = null;
-        mAudioSegmentPreemptTone = null;
         mAudioSegmentDropTone = null;
 
         float[] start = mUserPreferences.getPlaybackPreference().getStartTone();
@@ -272,13 +243,6 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
             mAudioSegmentStartTone = convert(start);
         }
 
-        float[] preempt = mUserPreferences.getPlaybackPreference().getPreemptTone();
-
-        if(preempt != null)
-        {
-            mAudioSegmentPreemptTone = convert(preempt);
-        }
-
         float[] drop = mUserPreferences.getPlaybackPreference().getDropTone();
 
         if(drop != null)
@@ -287,48 +251,6 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
         }
     }
 
-    /**
-     * Disposes of a processed audio segment and notifies the originator that processing of the segment is complete
-     * by decrementing the consumer count.
-     * @param audioSegment to dispose
-     */
-    private void dispose(AudioSegment audioSegment)
-    {
-        mAudioPriority.unbind();
-
-        if(audioSegment != null)
-        {
-            audioSegment.decrementConsumerCount();
-            audioSegment.removeIdentifierUpdateNotificationListener(this);
-        }
-    }
-
-    /**
-     * Generates a tone indicating that a new audio segment is starting
-     */
-    private ByteBuffer getAudioSegmentStartTone()
-    {
-        return mAudioSegmentStartTone;
-    }
-
-    /**
-     * Generates a tone indicating that the current audio segment playback has been preempted for a higher priority
-     * audio segment that is now starting.
-     */
-    private ByteBuffer getAudioSegmentPreemptionTone()
-    {
-        return mAudioSegmentPreemptTone;
-    }
-
-    /**
-     * Generates a tone indicating that the current audio segment playback has been dropped because the audio segment
-     * has been flagged as Do Not Monitor after playback has started.
-     */
-    private ByteBuffer getAudioSegmentDropTone()
-    {
-        return mAudioSegmentDropTone;
-    }
-
     /**
      * Writes the audio buffer data to the source data line.  If the data line is not currently playing, write as
      * much of the buffer to the data line as will fit, start the dataline, and then finish writing the residual
@@ -355,6 +277,7 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
 
                 //Top off the buffer and check if we can start it
                 wrote += mOutput.write(buffer.array(), 0, toWrite);
+                mOutputLastTimestamp = System.currentTimeMillis();
 
                 checkStart();
             }
@@ -363,147 +286,135 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
             {
                 //This will block until the buffer is fully written to the data line
                 mOutput.write(buffer.array(), wrote, buffer.array().length - wrote);
+                mOutputLastTimestamp = System.currentTimeMillis();
             }
         }
     }
 
+    /**
+     * Dispose of the currently assigned audio segment.
+     */
+    private void disposeCurrentAudioSegment()
+    {
+        if(mCurrentAudioSegment != null)
+        {
+            mCurrentAudioSegment.decrementConsumerCount();
+            mCurrentAudioSegment.removeIdentifierUpdateNotificationListener(this);
+            mCurrentAudioSegment = null;
+        }
+    }
+
+    /**
+     * Loads the next audio segment from the queue.
+     */
+    private void loadNextAudioSegment()
+    {
+        AudioSegment audioSegment = mAudioSegmentQueue.poll();
+
+        boolean verificationInProgress = (audioSegment != null);
+
+        while(verificationInProgress)
+        {
+            if(audioSegment != null)
+            {
+                //Throw away the audio segment if it has been flagged as do not monitor or is duplicate
+                if(isThrowaway(audioSegment))
+                {
+                    audioSegment.decrementConsumerCount();
+                    audioSegment = mAudioSegmentQueue.poll();
+                }
+                else
+                {
+                    verificationInProgress = false;
+                }
+            }
+            else
+            {
+                verificationInProgress = false;
+            }
+        }
+
+        mCurrentAudioSegment = audioSegment;
+
+        if(audioSegment != null)
+        {
+            mCurrentAudioSegment.addIdentifierUpdateNotificationListener(this);
+            broadcast(mCurrentAudioSegment.getIdentifierCollection());
+
+            //If we played any amount of the previous audio segment then play the audio segment start.  We check this
+            //to avoid repeatedly playing an audio segment start tone on the rare occasion that we have empty segments.
+            if(mCurrentBufferIndex > 0)
+            {
+                playAudio(mAudioSegmentStartTone);
+            }
+        }
+
+        mCurrentBufferIndex = 0;
+    }
+
+    /**
+     * Indicates if the audio segment should be thrown away because it is marked as duplicate or do-not-monitor.
+     * @param audioSegment to evaluate
+     * @return true if the audio should be thrown away.
+     */
+    private boolean isThrowaway(AudioSegment audioSegment)
+    {
+        return audioSegment != null &&
+               (audioSegment.isDoNotMonitor() ||
+               (audioSegment.isDuplicate() && mUserPreferences.getDuplicateCallDetectionPreference()
+                        .isDuplicatePlaybackSuppressionEnabled()));
+    }
+
     /**
      * Manage audio segment playback and process audio segment buffers.  This method is designed to be called
-     * by a threaded processor repeatedly to playback the current audio segment and check for and start a newly
-     * assigned audio segment.  It also handles starting and stopping the playback source data line to avoid audio
+     * by a threaded processor repeatedly to playback the current audio segment and check for and start newly
+     * added audio segments.  It also handles starting and stopping the playback source data line to avoid audio
      * discontinuities due to buffer underruns.
      */
     private void processAudio()
     {
-        if(mNextAudioSegment != null)
+        if(mCurrentAudioSegment == null)
         {
-            mLock.lock();
-
-            try
-            {
-                //Remove an assigned segment that's subsequently flagged as duplicate or do not monitor before playback
-                if(mNextAudioSegment.isDoNotMonitor() || (mNextAudioSegment.isDuplicate() &&
-                    mUserPreferences.getDuplicateCallDetectionPreference().isDuplicatePlaybackSuppressionEnabled()))
-                {
-                    mNextAudioSegment = null;
-
-                    if(mCurrentAudioSegment == null)
-                    {
-                        mEmptyProperty.set(true);
-                    }
-                }
-                //For linked audio segments, allow the linked segment to complete first before assigning the next
-                else if(mNextAudioSegment.isLinked())
-                {
-                    if(mCurrentAudioSegment == null)
-                    {
-                        mCurrentAudioSegment = mNextAudioSegment;
-                        mNextAudioSegment = null;
-                        mCurrentBufferIndex = 0;
-
-                        if(mCurrentAudioSegment != null)
-                        {
-                            mAudioPriority.bind(mCurrentAudioSegment.monitorPriorityProperty());
-                            mCurrentAudioSegment.addIdentifierUpdateNotificationListener(this);
-                            broadcast(mCurrentAudioSegment.getIdentifierCollection());
-                        }
-                        else
-                        {
-                            mAudioPriority.setValue(Priority.DEFAULT_PRIORITY);
-                        }
-                    }
-                }
-                else
-                {
-                    //Insert audio segment start or audio priority preemption bonk tone
-                    if(mCurrentAudioSegment == null)
-                    {
-                        playAudio(getAudioSegmentStartTone());
-                    }
-                    else if(mCurrentBufferIndex > 0 &&
-                        (!mCurrentAudioSegment.completeProperty().get() ||
-                            mCurrentBufferIndex < mCurrentAudioSegment.getAudioBufferCount()))
-                    {
-                        playAudio(getAudioSegmentPreemptionTone());
-                    }
-                    else
-                    {
-                        playAudio(getAudioSegmentStartTone());
-                    }
-
-                    //Close current audio segment
-                    dispose(mCurrentAudioSegment);
-                    mCurrentAudioSegment = mNextAudioSegment;
-                    mNextAudioSegment = null;
-                    mCurrentBufferIndex = 0;
-
-                    if(mCurrentAudioSegment != null)
-                    {
-                        mAudioPriority.bind(mCurrentAudioSegment.monitorPriorityProperty());
-                        mCurrentAudioSegment.addIdentifierUpdateNotificationListener(this);
-                        broadcast(mCurrentAudioSegment.getIdentifierCollection());
-                    }
-                    else
-                    {
-                        mAudioPriority.setValue(Priority.DEFAULT_PRIORITY);
-                    }
-                }
-            }
-            finally
-            {
-                mLock.unlock();
-            }
+            loadNextAudioSegment();
         }
 
-        if(mCurrentAudioSegment != null)
+        //Reevaluate current audio segment to see if the status has changed for duplicate or do-not-monitor.
+        if(isThrowaway(mCurrentAudioSegment))
         {
-            //Check for completed audio segment or a segment flagged as duplicate or Do Not Monitor
-            if(mCurrentAudioSegment.isDoNotMonitor() ||
-               (mCurrentAudioSegment.isDuplicate() &&
-                mUserPreferences.getDuplicateCallDetectionPreference().isDuplicatePlaybackSuppressionEnabled()) ||
-                (mCurrentAudioSegment.completeProperty().get() && mCurrentBufferIndex >= mCurrentAudioSegment.getAudioBufferCount()))
+            if(mCurrentBufferIndex > 0)
             {
-                if(mCurrentAudioSegment.isDoNotMonitor())
-                {
-                    playAudio(getAudioSegmentDropTone());
-                }
-
-                dispose(mCurrentAudioSegment);
-                mCurrentAudioSegment = null;
-
-                mLock.lock();
-
-                try
-                {
-                    if(mNextAudioSegment == null)
-                    {
-                        mEmptyProperty.set(true);
-                    }
-                }
-                finally
-                {
-                    mLock.unlock();
-                }
-
-                return;
+                playAudio(mAudioSegmentDropTone);
             }
 
-            //Process any new buffers that have been added to the audio segment.  If a next audio segment gets assigned
-            //while processing, exit the loop so that we can evaluate the next for higher priority preempt.  If the next
-            //segment is a linked segment, ignore it so that we can close out the current segment.
-            while(mCurrentAudioSegment != null && (mNextAudioSegment == null || mNextAudioSegment.isLinked()) &&
-                   mCurrentBufferIndex < mCurrentAudioSegment.getAudioBufferCount() &&
-                   !mCurrentAudioSegment.isDoNotMonitor() && !(mCurrentAudioSegment.isDuplicate() &&
-                mUserPreferences.getDuplicateCallDetectionPreference().isDuplicatePlaybackSuppressionEnabled()))
+            disposeCurrentAudioSegment();
+            loadNextAudioSegment();
+        }
+
+        while(mCurrentAudioSegment != null && mCurrentBufferIndex < mCurrentAudioSegment.getAudioBufferCount())
+        {
+            try
             {
                 float[] audioBuffer = mCurrentAudioSegment.getAudioBuffers().get(mCurrentBufferIndex++);
 
                 if(audioBuffer != null)
                 {
                     ByteBuffer audio = convert(audioBuffer);
+                    //This call blocks until all audio bytes are dumped into the data line.
                     playAudio(audio);
                 }
             }
+            catch(Exception e)
+            {
+                mLog.error("Error while processing audio for [" + mMixerChannel.name() + "]", e);
+            }
+        }
+
+        //Check for completed and fully-played audio segment -- load next audio segment
+        if(mCurrentAudioSegment != null &&
+           mCurrentAudioSegment.isComplete() &&
+           (mCurrentBufferIndex >= mCurrentAudioSegment.getAudioBufferCount()))
+        {
+            disposeCurrentAudioSegment();
         }
 
         checkStop();
@@ -523,25 +434,7 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
         }
 
         mProcessorFuture = null;
-
-        mLock.lock();
-
-        try
-        {
-            if(mNextAudioSegment != null)
-            {
-                mNextAudioSegment.decrementConsumerCount();
-                mNextAudioSegment = null;
-            }
-        }
-        finally
-        {
-            mLock.unlock();
-        }
-
-        dispose(mCurrentAudioSegment);
-        mCurrentAudioSegment = null;
-
+        disposeCurrentAudioSegment();
         mAudioEventBroadcaster.clear();
         mIdentifierCollectionListener = null;
 
@@ -650,14 +543,28 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
         if(mRunning)
         {
             //If the output buffer falls below the threshold then drain the output and stop playback
-            if(mOutput.isRunning() && mOutput.available() >= mBufferStopThreshold)
+            if(mOutput.isRunning())
             {
-                mOutput.drain();
-                mOutput.stop();
-                mRunning = false;
+                if(mOutput.available() >= mBufferStopThreshold)
+                {
+                    mOutput.drain();
+                    mOutput.stop();
+                    mRunning = false;
+                }
+                //Detect when we have a partially filled output that will neither start nor stop and the last write
+                //timestamp was more than the staleness threshold (500 ms) -- stop the output and discard stale contents
+                else if(mOutput.available() < mBufferStopThreshold &&
+                        mOutput.available() > mBufferStartThreshold &&
+                        (System.currentTimeMillis() - mOutputLastTimestamp >= STALE_PLAYBACK_THRESHOLD_MS))
+                {
+                    mOutput.stop();
+                    //Discard the stale buffer contents.
+                    mOutput.flush();
+                    mRunning = false;
+                }
             }
             //If output playback stopped on its own because the buffer emptied, then cleanup
-            else if(!mOutput.isRunning())
+            else
             {
                 mRunning = false;
             }
@@ -735,16 +642,33 @@ public abstract class AudioOutput implements LineListener, Listener<IdentifierUp
      */
     public class AudioSegmentProcessor implements Runnable
     {
+        private AtomicBoolean mProcessing = new AtomicBoolean();
+
         @Override
         public void run()
         {
-            try
+            if(mProcessing.compareAndSet(false, true))
             {
-                processAudio();
-            }
-            catch(Throwable t)
-            {
-                mLog.error("Error while processing audio buffers", t);
+                try
+                {
+                    //TODO: Debug hooks - remove after testing
+                    if(mMixerChannel.name().equals("LEFT"))
+                    {
+                        int a = 0;
+                    }
+                    else if(mMixerChannel.name().equals("RIGHT"))
+                    {
+                        int a = 0;
+                    }
+
+                    processAudio();
+                }
+                catch(Throwable t)
+                {
+                    mLog.error("Error while processing audio buffers", t);
+                }
+
+                mProcessing.set(false);
             }
         }
     }

src/main/java/io/github/dsheirer/audio/playback/AudioPlaybackManager.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2018 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +14,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.audio.playback;
 
@@ -24,6 +23,7 @@ import io.github.dsheirer.audio.AudioEvent;
 import io.github.dsheirer.audio.AudioException;
 import io.github.dsheirer.audio.AudioSegment;
 import io.github.dsheirer.audio.IAudioController;
+import io.github.dsheirer.controller.NamingThreadFactory;
 import io.github.dsheirer.eventbus.MyEventBus;
 import io.github.dsheirer.preference.PreferenceType;
 import io.github.dsheirer.preference.UserPreferences;
@@ -31,17 +31,18 @@ import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.source.mixer.MixerChannel;
 import io.github.dsheirer.source.mixer.MixerChannelConfiguration;
-import io.github.dsheirer.util.ThreadPool;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.Iterator;
 import java.util.List;
+import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedTransferQueue;
+import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Manages scheduling and playback of audio segments to the local users audio system.
@@ -50,8 +51,6 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
 {
     private static final Logger mLog = LoggerFactory.getLogger(AudioPlaybackManager.class);
 
-    public static final String AUDIO_CHANNELS_PROPERTY = "audio.manager.channels";
-    public static final String AUDIO_MIXER_PROPERTY = "audio.manager.mixer";
     public static final AudioEvent CONFIGURATION_CHANGE_STARTED =
         new AudioEvent(AudioEvent.Type.AUDIO_CONFIGURATION_CHANGE_STARTED, null);
     public static final AudioEvent CONFIGURATION_CHANGE_COMPLETE =
@@ -64,6 +63,8 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
     private List<AudioSegment> mAudioSegments = new ArrayList<>();
     private List<AudioSegment> mPendingAudioSegments = new ArrayList<>();
     private LinkedTransferQueue<AudioSegment> mNewAudioSegmentQueue = new LinkedTransferQueue<>();
+    private ScheduledExecutorService mScheduledExecutorService =
+            Executors.newSingleThreadScheduledExecutor(new NamingThreadFactory("sdrtrunk audio manager"));
 
     /**
      * Constructs an instance.
@@ -202,29 +203,13 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
             //Sort audio segments by playback priority and assign to empty audio outputs
             if(!mAudioSegments.isEmpty())
             {
+                //TODO: change this to take audio segment start time into account also
                 mAudioSegments.sort(Comparator.comparingInt(o -> o.monitorPriorityProperty().get()));
 
                 //Assign empty audio outputs first
                 for(AudioOutput audioOutput: mAudioOutputs)
                 {
-                    if(audioOutput.emptyProperty().get())
-                    {
-                        audioOutput.play(mAudioSegments.remove(0));
-
-                        if(mAudioSegments.isEmpty())
-                        {
-                            return;
-                        }
-                    }
-                }
-            }
-
-            //Preempt ongoing audio segment playback when higher priority audio segments are available
-            if(!mAudioSegments.isEmpty())
-            {
-                for(AudioOutput audioOutput: mAudioOutputs)
-                {
-                    if(mAudioSegments.get(0).monitorPriorityProperty().get() < audioOutput.audioPriorityProperty().get())
+                    if(audioOutput.isEmpty())
                     {
                         audioOutput.play(mAudioSegments.remove(0));
 
@@ -284,7 +269,7 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
                 }
                 catch(AudioException ae)
                 {
-                    mLog.error("Error changing audio output to [" + configuration.toString() + "]", ae);
+                    mLog.error("Error changing audio output to [" + configuration + "]", ae);
                 }
             }
         }
@@ -332,7 +317,7 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
                     throw new AudioException("Unsupported mixer channel configuration: " + entry.getMixerChannel());
             }
 
-            mProcessingTask = ThreadPool.SCHEDULED.scheduleAtFixedRate(new AudioSegmentProcessor(),
+            mProcessingTask = mScheduledExecutorService.scheduleAtFixedRate(new AudioSegmentProcessor(),
                 0, 100, TimeUnit.MILLISECONDS);
             mControllerBroadcaster.broadcast(CONFIGURATION_CHANGE_COMPLETE);
             mMixerChannelConfiguration = entry;
@@ -343,7 +328,7 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
      * Current audio playback mixer channel configuration setting.
      */
     @Override
-    public MixerChannelConfiguration getMixerChannelConfiguration() throws AudioException
+    public MixerChannelConfiguration getMixerChannelConfiguration()
     {
         return mMixerChannelConfiguration;
     }
@@ -384,16 +369,23 @@ public class AudioPlaybackManager implements Listener<AudioSegment>, IAudioContr
      */
     public class AudioSegmentProcessor implements Runnable
     {
+        private AtomicBoolean mProcessing = new AtomicBoolean();
+
         @Override
         public void run()
         {
-            try
+            if(mProcessing.compareAndSet(false, true))
             {
-                processAudioSegments();
-            }
-            catch(Throwable t)
-            {
-                mLog.error("Encountered error while processing audio segments", t);
+                try
+                {
+                    processAudioSegments();
+                }
+                catch(Throwable t)
+                {
+                    mLog.error("Encountered error while processing audio segments", t);
+                }
+
+                mProcessing.set(false);
             }
         }
     }

src/main/java/io/github/dsheirer/bits/BinaryMessage.java

@@ -1,35 +1,40 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 package io.github.dsheirer.bits;
 
 import io.github.dsheirer.edac.CRC;
+import java.io.UnsupportedEncodingException;
+import java.util.BitSet;
 import org.apache.commons.lang3.Validate;
 import org.apache.commons.math3.util.FastMath;
-
-import java.util.BitSet;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class BinaryMessage extends BitSet
 {
     private static final long serialVersionUID = 1L;
+    private static final Logger LOGGER = LoggerFactory.getLogger(BinaryMessage.class);
+    private static final int[] CHARACTER_7_BIT = new int[]{0, 1, 2, 3, 4, 5, 6};
+    private static final int[] CHARACTER_8_BIT = new int[]{0, 1, 2, 3, 4, 5, 6, 7};
+    private static final String UTF_8 = "UTF-8";
+    private static final String GB2312 = "GB2312";
+
 
     /**
      * Logical (ie constructed) size of this bitset, despite the actual size of
@@ -1038,6 +1043,51 @@ public class BinaryMessage extends BitSet
         return buffer;
     }
 
+    /**
+     * Loads the hexadecimal text into a binary message
+     * @param hex text to load from
+     * @return loaded binary message
+     */
+    public static BinaryMessage loadHex(String hex)
+    {
+        if(!hex.matches("[0-9A-F]*"))
+        {
+            throw new IllegalArgumentException("Message must contain only 0-9 and A-F hexadecimal characters");
+        }
+
+        int length = hex.length() / 2;
+
+        if(length * 2 < hex.length())
+        {
+            length++;
+        }
+
+        BinaryMessage buffer = new BinaryMessage(length * 8);
+
+        int bufferOffset = 0;
+        for(int x = 0; x < hex.length(); x += 2)
+        {
+            int endIndex = x + 2;
+            if(endIndex > hex.length())
+            {
+                endIndex--;
+            }
+
+            String rawHex = hex.substring(x, endIndex);
+
+            if(rawHex.length() == 1)
+            {
+                rawHex = rawHex + "0";
+            }
+
+            int value = Integer.parseInt(rawHex, 16);
+            buffer.setByte(bufferOffset, (byte)(value & 0xFF));
+            bufferOffset += 8;
+        }
+
+        return buffer;
+    }
+
     /**
      * Left rotates the bits between start and end indices, number of places.
      */
@@ -1133,19 +1183,121 @@ public class BinaryMessage extends BitSet
         this.xor(mask);
     }
 
-    public static void main(String[] args)
+    /**
+     * Parse ISO-7 bit characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     */
+    public String parseISO7(int offset, int characterCount)
     {
-        BinaryMessage message = new BinaryMessage(10);
-        message.set(1);
-        message.set(4);
-        message.set(5);
-        message.set(8);
-        message.set(9);
+        byte[] bytes = new byte[characterCount];
 
-        System.out.println("Hex: " + message.toHexString() + " Size:" + message.size());
-        for(int x = 0; x < 10; x++)
+        for(int x = 0; x < characterCount; x++)
         {
-            System.out.println(x + ": " + message.getHex(x, x + 10));
+            bytes[x] = getByte(CHARACTER_7_BIT, x * 7 + offset);
         }
+
+        return new String(bytes);
+    }
+
+    /**
+     * Parse ISO-8 bit characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     */
+    public String parseISO8(int offset, int characterCount)
+    {
+        byte[] bytes = new byte[characterCount];
+
+        for(int x = 0; x < characterCount; x++)
+        {
+            bytes[x] = getByte(CHARACTER_8_BIT, x * 8 + offset);
+        }
+
+        return new String(bytes);
+    }
+
+    /**
+     * Parse UTF-8 characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     * @throws UnsupportedEncodingException if UTF-8 encoding is not supported.
+     */
+    public String parseUTF8(int offset, int characterCount) throws UnsupportedEncodingException
+    {
+        byte[] bytes = new byte[characterCount];
+
+        for(int x = 0; x < characterCount; x++)
+        {
+            bytes[x] = getByte(CHARACTER_8_BIT, x * 8 + offset);
+        }
+
+        return new String(bytes, UTF_8);
+    }
+
+    /**
+     * Parse GB2312 Simplified Chinese Characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     * @throws UnsupportedEncodingException if GB2312 encoding is not supported.
+     */
+    public String parseGB2312(int offset, int characterCount) throws UnsupportedEncodingException
+    {
+        int length = characterCount * 2;
+        byte[] bytes = new byte[length];
+
+        for(int x = 0; x < length; x++)
+        {
+            bytes[x] = getByte(CHARACTER_8_BIT, x * 8 + offset);
+        }
+
+        return new String(bytes, GB2312);
+    }
+
+    /**
+     * Parse 16-bit unicode characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     */
+    public String parseUnicode(int offset, int characterCount)
+    {
+        int length = characterCount * 2;
+        byte[] bytes = new byte[length];
+
+        for(int x = 0; x < length; x++)
+        {
+            bytes[x] = getByte(CHARACTER_8_BIT, x * 8 + offset);
+        }
+
+        return new String(bytes);
+    }
+
+    /**
+     * Parse 4-bit Binary Coded Decimal (BCD) characters from the message starting at the offset.
+     * @param offset where to start parsing.
+     * @param characterCount number of characters to parse
+     * @return parsed message.
+     */
+    public String parseBCD4(int offset, int characterCount)
+    {
+        StringBuilder sb = new StringBuilder();
+
+        int count = 0;
+
+        while(count < characterCount)
+        {
+            int nibble = getNibble(offset);
+            //This will parse digits 0-9 and anything higher will parse as hexadecimal A-F
+            sb.append(Integer.toHexString(nibble).toUpperCase());
+            offset += 4;
+            count++;
+        }
+
+        return sb.toString();
     }
 }

src/main/java/io/github/dsheirer/channel/metadata/NowPlayingPanel.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2019 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +14,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.channel.metadata;
 
@@ -28,10 +27,11 @@ import io.github.dsheirer.module.decode.event.DecodeEventPanel;
 import io.github.dsheirer.module.decode.event.MessageActivityPanel;
 import io.github.dsheirer.playlist.PlaylistManager;
 import io.github.dsheirer.preference.UserPreferences;
+import io.github.dsheirer.settings.SettingsManager;
+import java.awt.Color;
 import net.miginfocom.swing.MigLayout;
 
 import javax.swing.JPanel;
-import java.awt.Color;
 
 public class NowPlayingPanel extends JPanel
 {
@@ -45,13 +45,14 @@ public class NowPlayingPanel extends JPanel
      * GUI panel that combines the currently decoding channels metadata table and viewers for channel details,
      * messages, events, and spectral view.
      */
-    public NowPlayingPanel(PlaylistManager playlistManager, IconModel iconModel, UserPreferences userPreferences)
+    public NowPlayingPanel(PlaylistManager playlistManager, IconModel iconModel, UserPreferences userPreferences,
+                           SettingsManager settingsManager)
     {
         mChannelDetailPanel = new ChannelDetailPanel(playlistManager.getChannelProcessingManager());
         mDecodeEventPanel = new DecodeEventPanel(iconModel, userPreferences, playlistManager.getAliasModel());
         mMessageActivityPanel = new MessageActivityPanel(userPreferences);
         mChannelMetadataPanel = new ChannelMetadataPanel(playlistManager, iconModel, userPreferences);
-        mChannelPowerPanel = new ChannelPowerPanel(playlistManager);
+        mChannelPowerPanel = new ChannelPowerPanel(playlistManager, settingsManager);
 
         init();
     }
@@ -68,6 +69,10 @@ public class NowPlayingPanel extends JPanel
         tabbedPane.setFont(this.getFont());
         tabbedPane.setForeground(Color.BLACK);
 
+        //Register state change listener to toggle visibility state for channel tab to turn-on/off FFT processing
+        tabbedPane.addChangeListener(e -> mChannelPowerPanel.setPanelVisible(tabbedPane.getSelectedIndex() == tabbedPane
+                .indexOfComponent(mChannelPowerPanel)));
+
         JideSplitPane splitPane = new JideSplitPane(JideSplitPane.VERTICAL_SPLIT);
         splitPane.setShowGripper(true);
         splitPane.add(mChannelMetadataPanel);

src/main/java/io/github/dsheirer/controller/ControllerPanel.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -32,6 +32,8 @@ import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.settings.SettingsManager;
 import io.github.dsheirer.source.tuner.manager.TunerManager;
 import io.github.dsheirer.source.tuner.ui.TunerViewPanel;
+import java.awt.Color;
+import java.awt.Dimension;
 import jiconfont.icons.font_awesome.FontAwesome;
 import jiconfont.swing.IconFontSwing;
 import net.miginfocom.swing.MigLayout;
@@ -41,8 +43,6 @@ import org.slf4j.LoggerFactory;
 import javax.swing.Icon;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
-import java.awt.Color;
-import java.awt.Dimension;
 
 public class ControllerPanel extends JPanel
 {
@@ -63,7 +63,7 @@ public class ControllerPanel extends JPanel
     {
         mAudioPanel = new AudioPanel(iconModel, userPreferences, settingsManager, audioPlaybackManager,
             playlistManager.getAliasModel());
-        mNowPlayingPanel = new NowPlayingPanel(playlistManager, iconModel, userPreferences);
+        mNowPlayingPanel = new NowPlayingPanel(playlistManager, iconModel, userPreferences, settingsManager);
         mMapPanel = new MapPanel(mapService, playlistManager.getAliasModel(), iconModel, settingsManager);
         mTunerManagerPanel = new TunerViewPanel(tunerManager, userPreferences);
 

src/main/java/io/github/dsheirer/controller/channel/ChannelAutoStartFrame.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2018 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,22 +14,13 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.controller.channel;
 
+import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.util.ThreadPool;
-import net.miginfocom.swing.MigLayout;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.swing.JButton;
-import javax.swing.JFrame;
-import javax.swing.JLabel;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.JTable;
 import java.awt.Dimension;
 import java.awt.EventQueue;
 import java.awt.event.ActionEvent;
@@ -41,12 +31,21 @@ import java.util.List;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
+import net.miginfocom.swing.MigLayout;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
 
 public class ChannelAutoStartFrame extends JFrame
 {
     private final static Logger mLog = LoggerFactory.getLogger(ChannelAutoStartFrame.class);
 
-    private static final int COUNTDOWN_SECONDS = 10;
     private Listener<ChannelEvent> mChannelEventListener;
     private List<Channel> mChannels;
 
@@ -55,7 +54,7 @@ public class ChannelAutoStartFrame extends JFrame
     private JButton mCancelButton;
     private JTable mChannelTable;
     private AtomicBoolean mChannelsStarted = new AtomicBoolean();
-
+    private int mAutoStartTimeoutSeconds;
     private ScheduledFuture<?> mTimerFuture;
 
     /**
@@ -66,10 +65,12 @@ public class ChannelAutoStartFrame extends JFrame
      * @param listener to receive channel start/enable request(s)
      * @param channels to auto-start
      */
-    public ChannelAutoStartFrame(Listener<ChannelEvent> listener, List<Channel> channels)
+    public ChannelAutoStartFrame(Listener<ChannelEvent> listener, List<Channel> channels, UserPreferences userPreferences)
     {
         mChannelEventListener = listener;
         mChannels = channels;
+        mAutoStartTimeoutSeconds = userPreferences.getApplicationPreference().getChannelAutoStartTimeout();
+
         init();
 
         EventQueue.invokeLater(() -> {
@@ -100,7 +101,7 @@ public class ChannelAutoStartFrame extends JFrame
             "[][][grow,fill][]"));
         panel.add(new JLabel("The following channels will be automatically"), "span");
 
-        mCountdownLabel = new JLabel(getCountdownText(COUNTDOWN_SECONDS));
+        mCountdownLabel = new JLabel(getCountdownText(mAutoStartTimeoutSeconds));
         panel.add(mCountdownLabel, "span");
 
         panel.add(new JScrollPane(getChannelTable()), "span");
@@ -220,7 +221,7 @@ public class ChannelAutoStartFrame extends JFrame
      */
     public class CountdownTimer implements Runnable
     {
-        private int mCount = COUNTDOWN_SECONDS;
+        private int mCount = mAutoStartTimeoutSeconds;
 
         @Override
         public void run()

src/main/java/io/github/dsheirer/controller/channel/ChannelProcessingManager.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -623,30 +623,27 @@ public class ChannelProcessingManager implements Listener<ChannelEvent>
                 Platform.runLater(() -> channel.setProcessing(false));
             }
 
-            //Since the processing chain's source will block on stop(), throw it to the thread pool to run
-            ThreadPool.CACHED.submit(() -> {
-                try
-                {
-                    processingChain.stop();
-                    processingChain.removeEventLoggingModules();
-                    processingChain.removeRecordingModules();
+            try
+            {
+                processingChain.stop();
+                processingChain.removeEventLoggingModules();
+                processingChain.removeRecordingModules();
 
-                    //Deregister channel from receive frequency correction events to show in the spectral display (hack!)
-                    processingChain.removeFrequencyChangeListener(channel);
-                    channel.resetFrequencyCorrection();
+                //Deregister channel from receive frequency correction events to show in the spectral display (hack!)
+                processingChain.removeFrequencyChangeListener(channel);
+                channel.resetFrequencyCorrection();
 
-                    mChannelEventBroadcaster.broadcast(new ChannelEvent(channel, ChannelEvent.Event.NOTIFICATION_PROCESSING_STOP));
-                    mChannelEventBroadcaster.removeListener(processingChain);
+                mChannelEventBroadcaster.broadcast(new ChannelEvent(channel, ChannelEvent.Event.NOTIFICATION_PROCESSING_STOP));
+                mChannelEventBroadcaster.removeListener(processingChain);
 
-                    //Unregister for event bus requests and notifications
-                    processingChain.getEventBus().unregister(ChannelProcessingManager.this);
-                    processingChain.dispose();
-                }
-                catch(Exception e)
-                {
-                    mLog.error("Error during shutdown of processing chain for channel [" + channel.getName() + "}", e);
-                }
-            });
+                //Unregister for event bus requests and notifications
+                processingChain.getEventBus().unregister(ChannelProcessingManager.this);
+                processingChain.dispose();
+            }
+            catch(Exception e)
+            {
+                mLog.error("Error during shutdown of processing chain for channel [" + channel.getName() + "}", e);
+            }
         }
     }
 

src/main/java/io/github/dsheirer/controller/channel/ChannelSelectionManager.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2018 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +14,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.controller.channel;
 
@@ -33,7 +32,7 @@ public class ChannelSelectionManager implements Listener<ChannelEvent>
     public ChannelSelectionManager(ChannelModel channelModel)
     {
         mChannelEventListener = channelModel;
-        channelModel.addListener(this::receive);
+        channelModel.addListener(ChannelSelectionManager.this);
     }
 
     @Override

src/main/java/io/github/dsheirer/dsp/filter/channelizer/AbstractComplexPolyphaseChannelizer.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -122,6 +122,11 @@ public abstract class AbstractComplexPolyphaseChannelizer implements Listener<In
             mChannels.add(polyphaseChannelSource);
             mSourceChangeBroadcaster.addListener(polyphaseChannelSource.getSourceEventListener());
         }
+        else
+        {
+            mLog.error("Error adding polyphase channel source - " + (polyphaseChannelSource == null ? "source is null" :
+                    "channel source is already added to this channelizer"));
+        }
     }
 
     /**
@@ -136,6 +141,11 @@ public abstract class AbstractComplexPolyphaseChannelizer implements Listener<In
             mChannels.remove(polyphaseChannelSource);
             mSourceChangeBroadcaster.removeListener(polyphaseChannelSource.getSourceEventListener());
         }
+        else
+        {
+            mLog.error("Error removing polyphase channel source - " + (polyphaseChannelSource == null ? "source is null" :
+                    "channel source was not previously added to this channelizer"));
+        }
     }
 
     /**

src/main/java/io/github/dsheirer/dsp/filter/channelizer/ChannelCalculator.java

@@ -1,31 +1,34 @@
-/*******************************************************************************
- * *********************************************************************************************************************
- * sdr-trunk
- * Copyright (C) 2014-2017 Dennis Sheirer
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
- * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
- * later version.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
- * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License  along with this program.
- * If not, see <http://www.gnu.org/licenses/>
- * *********************************************************************************************************************
- ******************************************************************************/
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
 package io.github.dsheirer.dsp.filter.channelizer;
 
 import io.github.dsheirer.source.tuner.channel.TunerChannel;
+import java.text.DecimalFormat;
+import java.util.ArrayList;
+import java.util.List;
 import org.apache.commons.math3.util.FastMath;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
-import java.util.List;
-
 public class ChannelCalculator
 {
+    private static final DecimalFormat FREQUENCY_FORMAT = new DecimalFormat("0.00000");
     private final static Logger mLog = LoggerFactory.getLogger(ChannelCalculator.class);
 
     /**
@@ -546,13 +549,13 @@ public class ChannelCalculator
     public String toString()
     {
         StringBuilder sb = new StringBuilder();
-        sb.append("Channel Calculator Settings");
-        sb.append(" Channels:").append(getChannelCount());
-        sb.append(" Sample Rate:").append(getSampleRate());
-        sb.append(" Channel Bandwidth:").append(getChannelBandwidth());
-        sb.append(" Channel Rate:").append(getChannelSampleRate());
-        sb.append(" Min:").append(getMinimumFrequency());
-        sb.append(" Max:").append(getMaximumFrequency());
+        sb.append("Channel Calculator | Tuner SR:").append(FREQUENCY_FORMAT.format(getSampleRate() / 1E6D));
+        sb.append(" CF:").append(FREQUENCY_FORMAT.format(getCenterFrequency() / 1E6D));
+        sb.append(" MIN:").append(FREQUENCY_FORMAT.format(getMinimumFrequency() / 1E6D));
+        sb.append(" MAX:").append(FREQUENCY_FORMAT.format(getMaximumFrequency() / 1E6D));
+        sb.append(" | Channel COUNT:").append(getChannelCount());
+        sb.append(" BW:").append(FREQUENCY_FORMAT.format(getChannelBandwidth() / 1E6D));
+        sb.append(" SR:").append(FREQUENCY_FORMAT.format(getChannelSampleRate() / 1E6D));
         return sb.toString();
     }
 }

src/main/java/io/github/dsheirer/dsp/filter/channelizer/ComplexPolyphaseChannelizerM2.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,7 +24,6 @@ import io.github.dsheirer.sample.complex.InterleavedComplexSamples;
 import io.github.dsheirer.util.Dispatcher;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import org.apache.commons.math3.util.FastMath;
 import org.jtransforms.fft.FloatFFT_1D;
@@ -69,8 +68,8 @@ public class ComplexPolyphaseChannelizerM2 extends AbstractComplexPolyphaseChann
      */
     private static final int PROCESSED_CHANNEL_RESULTS_THRESHOLD = 1024;
 
-    //Sized at 152 buffers a second where max = 5 seconds
-    private IFFTProcessorDispatcher mIFFTProcessorDispatcher = new IFFTProcessorDispatcher(5 * 152);
+    //Sized to process 1/20th batch of 152 buffers a second,  at 40 times per second
+    private IFFTProcessorDispatcher mIFFTProcessorDispatcher = new IFFTProcessorDispatcher(152 / 20, 25);
     private FloatFFT_1D mFFT;
     private float[] mInlineSamples;
     private float[] mInlineFilter;
@@ -407,25 +406,32 @@ public class ComplexPolyphaseChannelizerM2 extends AbstractComplexPolyphaseChann
      */
     public class IFFTProcessorDispatcher extends Dispatcher<List<float[]>>
     {
-        public IFFTProcessorDispatcher(int maximumSize)
+        public IFFTProcessorDispatcher(int batchSize, long interval)
         {
-            super(maximumSize, "sdrtrunk polyphase ifft processor", Collections.emptyList());
+            super("sdrtrunk polyphase ifft processor", batchSize, interval);
 
             //We create a listener interface to receive the batched channel results arrays from the scheduled thread pool
             //dispatcher thread that is part of this continuous buffer processor.  We perform an IFFT on each
             //channel results array contained in each results buffer and then dispatch the buffer
             //so that it can be distributed to each channel listener.
             setListener(list -> {
-                List<float[]> processedChannelResults = new ArrayList<>();
-
-                for(float[] channelResults: list)
+                try
                 {
-                    //Rotate each of the channels to the correct phase using the IFFT
-                    mFFT.complexInverse(channelResults, true);
-                    processedChannelResults.add(channelResults);
-                }
+                    List<float[]> processedChannelResults = new ArrayList<>();
 
-                dispatch(processedChannelResults);
+                    for(float[] channelResults: list)
+                    {
+                        //Rotate each of the channels to the correct phase using the IFFT
+                        mFFT.complexInverse(channelResults, true);
+                        processedChannelResults.add(channelResults);
+                    }
+
+                    dispatch(processedChannelResults);
+                }
+                catch(Throwable t)
+                {
+                    mLog.error("Error during IFFT and dispatch of processed channel results", t);
+                }
             });
         }
     }

src/main/java/io/github/dsheirer/dsp/filter/channelizer/PolyphaseChannelManager.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,7 +20,6 @@ package io.github.dsheirer.dsp.filter.channelizer;
 
 import io.github.dsheirer.buffer.INativeBuffer;
 import io.github.dsheirer.buffer.INativeBufferProvider;
-import io.github.dsheirer.buffer.NativeBufferPoisonPill;
 import io.github.dsheirer.controller.channel.event.ChannelStopProcessingRequest;
 import io.github.dsheirer.dsp.filter.design.FilterDesignException;
 import io.github.dsheirer.eventbus.MyEventBus;
@@ -28,13 +27,13 @@ import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.sample.complex.InterleavedComplexSamples;
 import io.github.dsheirer.source.ISourceEventProcessor;
-import io.github.dsheirer.source.Source;
 import io.github.dsheirer.source.SourceEvent;
 import io.github.dsheirer.source.SourceException;
 import io.github.dsheirer.source.tuner.TunerController;
 import io.github.dsheirer.source.tuner.channel.TunerChannel;
 import io.github.dsheirer.source.tuner.channel.TunerChannelSource;
 import io.github.dsheirer.util.Dispatcher;
+import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
@@ -65,6 +64,7 @@ import org.slf4j.LoggerFactory;
  */
 public class PolyphaseChannelManager implements ISourceEventProcessor
 {
+    private static final DecimalFormat FREQUENCY_FORMAT = new DecimalFormat("0.00000");
     private final static Logger mLog = LoggerFactory.getLogger(PolyphaseChannelManager.class);
     private static final double MINIMUM_CHANNEL_BANDWIDTH = 25000.0;
     private static final double CHANNEL_OVERSAMPLING = 2.0;
@@ -108,8 +108,7 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
         }
 
         mChannelCalculator = new ChannelCalculator(sampleRate, channelCount, frequency, CHANNEL_OVERSAMPLING);
-        mBufferDispatcher = new Dispatcher(500, "sdrtrunk polyphase buffer processor",
-                new NativeBufferPoisonPill());
+        mBufferDispatcher = new Dispatcher("sdrtrunk polyphase buffer processor", 50, 10);
         mBufferDispatcher.setListener(mNativeBufferReceiver);
     }
 
@@ -123,6 +122,34 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
         this(tunerController, tunerController.getFrequency(), tunerController.getSampleRate());
     }
 
+    /**
+     * Provides a description of the state of this manager.
+     */
+    public String getStateDescription()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Polyphase Channel Manager Providing [").append(mChannelSources.size()).append("] Channels");
+        sb.append("\n\t").append(mChannelCalculator);
+        for(PolyphaseChannelSource pcs: mChannelSources)
+        {
+            List<Integer> indexes = pcs.getOutputProcessorIndexes();
+            double sampleRate = pcs.getSampleRate();
+            long indexCenterFrequency = pcs.getIndexCenterFrequency();
+            long appliedFrequencyOffset = pcs.getFrequencyOffset();
+            long requestedCenterFrequency = pcs.getFrequency();
+
+            sb.append("\n\tPolyphase | Tuner SR:").append(FREQUENCY_FORMAT.format(pcs.getTunerSampleRate() / 1E6d));
+            sb.append(" CF:").append(FREQUENCY_FORMAT.format(pcs.getTunerCenterFrequency() / 1E6d));
+            sb.append(" BW: ").append(FREQUENCY_FORMAT.format(sampleRate / 1E6d));
+            sb.append(" | Channel CF: ").append(FREQUENCY_FORMAT.format(indexCenterFrequency / 1E6d));
+            sb.append(" REQUESTED CF: ").append(FREQUENCY_FORMAT.format(requestedCenterFrequency / 1E6d));
+            sb.append(" MIXER:").append(FREQUENCY_FORMAT.format(appliedFrequencyOffset / 1E6d));
+            sb.append(" | Polyphase Indices: ").append(indexes);
+        }
+
+        return sb.toString();
+    }
+
     public void stopAllChannels()
     {
         mRunning = false;
@@ -147,14 +174,6 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
         }
     }
 
-    /**
-     * Current channel sample rate which is (2 * channel bandwidth).
-     */
-    public double getChannelSampleRate()
-    {
-        return mChannelCalculator.getChannelSampleRate();
-    }
-
     /**
      * Current channel bandwidth/spacing.
      */
@@ -278,7 +297,7 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
                 //no-op
                 break;
             default:
-                mLog.info("Unrecognized source event: " + sourceEvent.toString());
+                mLog.info("Unrecognized source event: " + sourceEvent);
                 break;
         }
     }
@@ -409,9 +428,10 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
                     }
                     break;
                 case REQUEST_STOP_SAMPLE_STREAM:
-                    if(sourceEvent.hasSource() && sourceEvent.getSource() instanceof PolyphaseChannelSource)
+                    if(sourceEvent.hasSource() && sourceEvent.getSource() instanceof PolyphaseChannelSource channelSource)
                     {
-                        stopChannelSource((PolyphaseChannelSource)sourceEvent.getSource());
+                        stopChannelSource(channelSource);
+                        channelSource.dispose();
                     }
                     else
                     {
@@ -419,17 +439,6 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
                             (sourceEvent.hasSource() ? sourceEvent.getSource().getClass() : "null source"));
                     }
                     break;
-                case REQUEST_SOURCE_DISPOSE:
-                    Source source = sourceEvent.getSource();
-
-                    if(source instanceof PolyphaseChannelSource)
-                    {
-                        source.dispose();
-                    }
-                    break;
-                case NOTIFICATION_FREQUENCY_CORRECTION_CHANGE:
-                    //ignore
-                    break;
                 case NOTIFICATION_MEASURED_FREQUENCY_ERROR_SYNC_LOCKED:
                     //Rebroadcast so that the tuner source can process this event
                     mSourceEventBroadcaster.broadcast(sourceEvent);
@@ -445,16 +454,17 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
     /**
      * Processes the incoming buffer stream from the provider and transfers the buffers to the polyphase channelizer.
      *
-     * This monitor incorporates a queue for receiving source events that affect configuration of the channelizer so
-     * that they can be processed on the buffer processor calling thread, avoiding unnecessary locks on the channelizer
-     * and/or the channel sources and output processors.
+     * This monitor incorporates a source event handler that queues a center frequency update so that it can be
+     * handled on the buffer processing thread, avoiding having to lock on the output processor thread.  Since we
+     * anticipate that these two threads will contend for access to this update required flag, we use an update lock
+     * to protect access to the flag.
      */
     public class NativeBufferReceiver implements Listener<INativeBuffer>
     {
         private boolean mOutputProcessorUpdateRequired = false;
 
         /**
-         * Queues the source event for deferred execution on the buffer processing thread.
+         * Processes tuner center frequency change source events to flag when output processors need updating.
          * @param event that affects configuration of the channelizer (frequency or sample rate change events)
          */
         public void receive(SourceEvent event)
@@ -463,36 +473,49 @@ public class PolyphaseChannelManager implements ISourceEventProcessor
 
             if(mChannelCalculator.getCenterFrequency() != frequency)
             {
+                //Update the channel calculator frequency so that it's ready when the output processor update occurs
                 mChannelCalculator.setCenterFrequency(frequency);
                 mOutputProcessorUpdateRequired = true;
             }
         }
 
+        /**
+         * Process native buffer streams and update polyphase output channels when the parent tuner center
+         * frequency changes.
+         * @param nativeBuffer of sample to process.
+         */
         @Override
         public void receive(INativeBuffer nativeBuffer)
         {
-            try
+            if(mOutputProcessorUpdateRequired)
             {
-                if(mOutputProcessorUpdateRequired)
+                try
                 {
                     updateOutputProcessors();
-                    mOutputProcessorUpdateRequired = false;
                 }
-
-                if(mPolyphaseChannelizer != null)
+                catch(Exception e)
                 {
-                    Iterator<InterleavedComplexSamples> iterator = nativeBuffer.iteratorInterleaved();
+                    mLog.error("Error updating polyphase channel output processors");
+                }
+                mOutputProcessorUpdateRequired = false;
+            }
 
-                    while(iterator.hasNext())
+            if(mPolyphaseChannelizer != null)
+            {
+                Iterator<InterleavedComplexSamples> iterator = nativeBuffer.iteratorInterleaved();
+
+                while(iterator.hasNext())
+                {
+                    try
                     {
                         mPolyphaseChannelizer.receive(iterator.next());
                     }
+                    catch(Throwable throwable)
+                    {
+                        mLog.error("Error", throwable);
+                    }
                 }
             }
-            catch(Throwable throwable)
-            {
-                mLog.error("Error", throwable);
-            }
         }
     }
 }

src/main/java/io/github/dsheirer/dsp/filter/channelizer/PolyphaseChannelSource.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -25,11 +25,10 @@ import io.github.dsheirer.dsp.filter.design.FilterDesignException;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.sample.complex.ComplexSamples;
 import io.github.dsheirer.source.SourceEvent;
-import io.github.dsheirer.source.tuner.channel.StreamProcessorWithHeartbeat;
 import io.github.dsheirer.source.tuner.channel.TunerChannel;
 import io.github.dsheirer.source.tuner.channel.TunerChannelSource;
+import java.util.ArrayList;
 import java.util.List;
-import java.util.concurrent.locks.ReentrantLock;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -42,11 +41,13 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
 {
     private Logger mLog = LoggerFactory.getLogger(PolyphaseChannelSource.class);
     private IPolyphaseChannelOutputProcessor mPolyphaseChannelOutputProcessor;
-    private StreamProcessorWithHeartbeat<ComplexSamples> mStreamHeartbeatProcessor;
+    private Listener<ComplexSamples> mSamplesListener;
     private double mChannelSampleRate;
     private long mIndexCenterFrequency;
-    private long mChannelFrequencyCorrection;
-    private ReentrantLock mOutputProcessorLock = new ReentrantLock();
+    private List<Integer> mOutputProcessorIndexes = new ArrayList<>();
+    private double mTunerSampleRate;
+    private double mTunerCenterFrequency;
+    private PendingOutputProcessorUpdate mPendingOutputProcessorUpdate;
 
     /**
      * Constructs an instance
@@ -62,8 +63,42 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
     {
         super(producerSourceEventListener, tunerChannel);
         mChannelSampleRate = channelCalculator.getChannelSampleRate();
-        mStreamHeartbeatProcessor = new StreamProcessorWithHeartbeat<>(getHeartbeatManager(), HEARTBEAT_INTERVAL_MS);
-        updateOutputProcessor(channelCalculator, filterManager);
+        doUpdateOutputProcessor(channelCalculator, filterManager);
+    }
+
+    /**
+     * Description of the state or configuration of the output processor.
+     */
+    public String getStateDescription()
+    {
+        return mPolyphaseChannelOutputProcessor.getStateDescription();
+    }
+
+    /**
+     * Current output processor indexes.
+     * @return indexes
+     */
+    public List<Integer> getOutputProcessorIndexes()
+    {
+        return mOutputProcessorIndexes;
+    }
+
+    /**
+     * Sample rate or bandwidth of the tuner providing input to the channelizer.
+     * @return sample rate
+     */
+    public double getTunerSampleRate()
+    {
+        return mTunerSampleRate;
+    }
+
+    /**
+     * Center tuned frequency of the tuner providing input to the channelizer.
+     * @return center frequency
+     */
+    public double getTunerCenterFrequency()
+    {
+        return mTunerCenterFrequency;
     }
 
     @Override
@@ -71,8 +106,6 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
     {
         super.start();
 
-        mStreamHeartbeatProcessor.start();
-
         if(mPolyphaseChannelOutputProcessor != null)
         {
             mPolyphaseChannelOutputProcessor.start();
@@ -88,8 +121,6 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
         {
             mPolyphaseChannelOutputProcessor.stop();
         }
-
-        mStreamHeartbeatProcessor.stop();
     }
 
     /**
@@ -98,107 +129,129 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
     @Override
     public void setListener(final Listener<ComplexSamples> listener)
     {
-        mStreamHeartbeatProcessor.setListener(listener);
+        mSamplesListener = listener;
         mPolyphaseChannelOutputProcessor.setListener(this);
     }
 
     @Override
     public void receive(ComplexSamples complexSamples)
     {
-        mStreamHeartbeatProcessor.receive(complexSamples);
+        if(mSamplesListener != null)
+        {
+            try
+            {
+                mSamplesListener.receive(complexSamples);
+            }
+            catch(Throwable t)
+            {
+                mLog.error("Error dispatching complex samples to listener [" + mSamplesListener.getClass() + "]", t);
+            }
+        }
     }
 
     /**
-     * Updates the output processor whenever the source tuner's center frequency changes.
+     * Queues a request to update the output processor whenever the source tuner's center frequency changes.
      * @param channelCalculator providing access to updated tuner center frequency, sample rate, etc.
      * @param filterManager for designing and caching synthesis filters
      */
-    public void updateOutputProcessor(ChannelCalculator channelCalculator, SynthesisFilterManager filterManager) throws IllegalArgumentException
+    public void updateOutputProcessor(ChannelCalculator channelCalculator, SynthesisFilterManager filterManager)
+            throws IllegalArgumentException
+    {
+        mPendingOutputProcessorUpdate = new PendingOutputProcessorUpdate(channelCalculator, filterManager);
+    }
+
+    /**
+     * Performs the output processor update.  This method must be invoked on the channel results calling thread to
+     * ensure we don't have thread contention on the output processor.
+     * @param channelCalculator for updates
+     * @param filterManager for updates
+     * @throws IllegalArgumentException if there's an issue.
+     */
+    public void doUpdateOutputProcessor(ChannelCalculator channelCalculator, SynthesisFilterManager filterManager)
+            throws IllegalArgumentException
     {
         String errorMessage = null;
 
-        mOutputProcessorLock.lock();
+        //If a change in sample rate or center frequency makes this channel no longer viable, then the channel
+        //calculator will throw an IllegalArgException ... handled below
+        List<Integer> indexes = channelCalculator.getChannelIndexes(getTunerChannel());
 
-        try
+        mOutputProcessorIndexes.clear();
+        mOutputProcessorIndexes.addAll(indexes);
+        mTunerCenterFrequency = channelCalculator.getCenterFrequency();
+        mTunerSampleRate = channelCalculator.getSampleRate();
+
+        //The provided channels are necessarily aligned to the center frequency that this source is providing and an
+        //oscillator will mix the provided channels to bring the desired center frequency to baseband.
+        setFrequency(channelCalculator.getCenterFrequencyForIndexes(indexes));
+
+        if(mPolyphaseChannelOutputProcessor != null && mPolyphaseChannelOutputProcessor.getInputChannelCount() == indexes.size())
         {
-            //If a change in sample rate or center frequency makes this channel no longer viable, then the channel
-            //calculator will throw an IllegalArgException ... handled below
-            List<Integer> indexes = channelCalculator.getChannelIndexes(getTunerChannel());
+            mPolyphaseChannelOutputProcessor.setPolyphaseChannelIndices(indexes);
 
-            //The provided channels are necessarily aligned to the center frequency that this source is providing and an
-            //oscillator will mix the provided channels to bring the desired center frequency to baseband.
-            setFrequency(channelCalculator.getCenterFrequencyForIndexes(indexes));
-
-            if(mPolyphaseChannelOutputProcessor != null && mPolyphaseChannelOutputProcessor.getInputChannelCount() == indexes.size())
+            if(indexes.size() > 1)
             {
-                mPolyphaseChannelOutputProcessor.setPolyphaseChannelIndices(indexes);
-
-                if(indexes.size() > 1)
+                try
                 {
+                    float[] filter = filterManager.getFilter(channelCalculator.getChannelSampleRate(),
+                            channelCalculator.getChannelBandwidth(), indexes.size());
+                    mPolyphaseChannelOutputProcessor.setSynthesisFilter(filter);
+                }
+                catch(FilterDesignException fde)
+                {
+                    mLog.error("Error creating an updated synthesis filter for the channel output processor");
+                    errorMessage ="Cannot update output processor - unable to design synthesis filter for [" +
+                        indexes.size() + "] channel indices - channel sample rate [" + channelCalculator.getChannelSampleRate() +
+                        "] channel bandwidth [" + channelCalculator.getChannelBandwidth() + "]";
+                }
+            }
+
+            mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
+        }
+        else //Create a new output processor.
+        {
+            if(mPolyphaseChannelOutputProcessor != null)
+            {
+                mPolyphaseChannelOutputProcessor.setListener(null);
+                mPolyphaseChannelOutputProcessor.stop();
+            }
+
+            mPolyphaseChannelOutputProcessor = null;
+
+            switch(indexes.size())
+            {
+                case 1:
+                    mPolyphaseChannelOutputProcessor = new OneChannelOutputProcessor(channelCalculator.getChannelSampleRate(),
+                            indexes, channelCalculator.getChannelCount(), getHeartbeatManager());
+                    mPolyphaseChannelOutputProcessor.setListener(this);
+                    mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
+                    mPolyphaseChannelOutputProcessor.start();
+                    break;
+                case 2:
                     try
                     {
-                        float[] filter = filterManager.getFilter(channelCalculator.getSampleRate(),
-                                channelCalculator.getChannelBandwidth(), indexes.size());
-                        mPolyphaseChannelOutputProcessor.setSynthesisFilter(filter);
-                    }
-                    catch(FilterDesignException fde)
-                    {
-                        mLog.error("Error creating an updated synthesis filter for the channel output processor");
-                        errorMessage ="Cannot update output processor - unable to design synthesis filter for [" +
-                                indexes.size() + "] channel indices";
-                    }
-                }
-
-                mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
-            }
-            else //Create a new output processor.
-            {
-                if(mPolyphaseChannelOutputProcessor != null)
-                {
-                    mPolyphaseChannelOutputProcessor.setListener(null);
-                }
-
-                mPolyphaseChannelOutputProcessor = null;
-
-                switch(indexes.size())
-                {
-                    case 1:
-                        mPolyphaseChannelOutputProcessor = new OneChannelOutputProcessor(channelCalculator.getChannelSampleRate(),
-                                indexes, channelCalculator.getChannelCount());
+                        float[] filter = filterManager.getFilter(channelCalculator.getChannelSampleRate(),
+                                channelCalculator.getChannelBandwidth(), 2);
+                        mPolyphaseChannelOutputProcessor = new TwoChannelOutputProcessor(channelCalculator.getChannelSampleRate(),
+                                indexes, filter, channelCalculator.getChannelCount(), getHeartbeatManager());
                         mPolyphaseChannelOutputProcessor.setListener(this);
                         mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
                         mPolyphaseChannelOutputProcessor.start();
-                        break;
-                    case 2:
-                        try
-                        {
-                            float[] filter = filterManager.getFilter(channelCalculator.getChannelSampleRate(),
-                                    channelCalculator.getChannelBandwidth(), 2);
-                            mPolyphaseChannelOutputProcessor = new TwoChannelOutputProcessor(channelCalculator.getChannelSampleRate(),
-                                    indexes, filter, channelCalculator.getChannelCount());
-                            mPolyphaseChannelOutputProcessor.setListener(this);
-                            mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
-                            mPolyphaseChannelOutputProcessor.start();
-                        }
-                        catch(FilterDesignException fde)
-                        {
-                            errorMessage = "Cannot create new output processor - unable to design synthesis filter for [" +
-                                    indexes.size() + "] channel indices";
-                            mLog.error("Error creating a synthesis filter for a new channel output processor");
-                        }
-                        break;
-                    default:
-                        mLog.error("Request to create an output processor for unexpected channel index size:" + indexes.size());
-                        mLog.info(channelCalculator.toString());
-                        errorMessage = "Unable to create new channel output processor - unexpected channel index size: " +
-                                indexes.size();
-                }
+                    }
+                    catch(FilterDesignException fde)
+                    {
+                        errorMessage = "Cannot create new output processor - unable to design synthesis filter for [" +
+                                indexes.size() + "] channel indices";
+                        mLog.error("Error creating a synthesis filter for a new channel output processor");
+                    }
+                    break;
+                default:
+                    mLog.error("Request to create an output processor for unexpected channel index size:" + indexes.size());
+                    mLog.info(channelCalculator.toString());
+                    errorMessage = "Unable to create new channel output processor - unexpected channel index size: " +
+                            indexes.size();
             }
         }
-        finally
-        {
-            mOutputProcessorLock.unlock();
-        }
 
         //Unlikely, but if we had an error designing a synthesis filter, throw an exception
         if(errorMessage != null)
@@ -217,7 +270,13 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
      */
     public void receiveChannelResults(List<float[]> channelResultsList, long currentSamplesTimestamp)
     {
-        mOutputProcessorLock.lock();
+        if(mPendingOutputProcessorUpdate != null)
+        {
+            ChannelCalculator channelCalculator = mPendingOutputProcessorUpdate.getChannelCalculator();
+            SynthesisFilterManager filterManager = mPendingOutputProcessorUpdate.getSynthesisFilterManager();
+            mPendingOutputProcessorUpdate = null;
+            doUpdateOutputProcessor(channelCalculator, filterManager);
+        }
 
         try
         {
@@ -226,9 +285,9 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
                 mPolyphaseChannelOutputProcessor.receiveChannelResults(channelResultsList, currentSamplesTimestamp);
             }
         }
-        finally
+        catch(Exception e)
         {
-            mOutputProcessorLock.unlock();
+            mLog.error("Error processing channel results", e);
         }
     }
 
@@ -263,59 +322,32 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
         }
     }
 
-    @Override
-    public long getChannelFrequencyCorrection()
-    {
-        return mChannelFrequencyCorrection;
-    }
-
     /**
-     * Adjusts the frequency correction value that is being applied to the channelized output stream by the
-     * polyphase channel output processor.
-     *
-     * @param value to apply for frequency correction in hertz
-     */
-    protected void setChannelFrequencyCorrection(long value)
-    {
-        mChannelFrequencyCorrection = value;
-        updateFrequencyOffset();
-        broadcastConsumerSourceEvent(SourceEvent.frequencyCorrectionChange(mChannelFrequencyCorrection));
-    }
-
-    /**
-     * Sets the center frequency for this channel.frequency for the incoming sample stream channel results and resets frequency correction to zero.
+     * Sets the center frequency for this channel.
      * @param frequency in hertz
      */
     @Override
     public void setFrequency(long frequency)
     {
         mIndexCenterFrequency = frequency;
+    }
 
-        //Set frequency correction to zero to trigger an update to the mixer and allow downstream monitors to
-        //recalculate the frequency error correction again
-        setChannelFrequencyCorrection(0);
+    /**
+     * Center frequency from the incoming index channel(s).
+     * @return frequency in hertz
+     */
+    public long getIndexCenterFrequency()
+    {
+        return mIndexCenterFrequency;
     }
 
     /**
      * Calculates the frequency offset required to mix the incoming signal to center the desired frequency
      * within the channel
      */
-    private long getFrequencyOffset()
+    public long getFrequencyOffset()
     {
-        return mIndexCenterFrequency - getTunerChannel().getFrequency() + mChannelFrequencyCorrection;
-    }
-
-    /**
-     * Updates the frequency offset being applied by the output processor.  Calculates the offset using the center
-     * frequency of the incoming polyphase channel results and the desired output channel frequency adjusted by any
-     * requested frequency correction value.
-     */
-    private void updateFrequencyOffset()
-    {
-        if(mPolyphaseChannelOutputProcessor != null)
-        {
-            mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());
-        }
+        return mIndexCenterFrequency - getTunerChannel().getFrequency();
     }
 
     @Override
@@ -324,4 +356,40 @@ public class PolyphaseChannelSource extends TunerChannelSource implements Listen
         return "POLYPHASE [" + mPolyphaseChannelOutputProcessor.getInputChannelCount() + "] " +
             getTunerChannel().getFrequency();
     }
+
+    /**
+     * Support classes needed to update the output processor.
+     */
+    public class PendingOutputProcessorUpdate
+    {
+        private final ChannelCalculator mChannelCalculator;
+        private final SynthesisFilterManager mSynthesisFilterManager;
+
+        /**
+         * Constructs an instance
+         * @param channelCalculator for support
+         * @param synthesisFilterManager for support
+         */
+        public PendingOutputProcessorUpdate(ChannelCalculator channelCalculator, SynthesisFilterManager synthesisFilterManager)
+        {
+            mChannelCalculator = channelCalculator;
+            mSynthesisFilterManager = synthesisFilterManager;
+        }
+
+        /**
+         * Channel calculator
+         */
+        public ChannelCalculator getChannelCalculator()
+        {
+            return mChannelCalculator;
+        }
+
+        /**
+         * Channel calculator
+         */
+        public SynthesisFilterManager getSynthesisFilterManager()
+        {
+            return mSynthesisFilterManager;
+        }
+    }
 }

src/main/java/io/github/dsheirer/dsp/filter/channelizer/TwoChannelSynthesizerM2.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 package io.github.dsheirer.dsp.filter.channelizer;
 
 import io.github.dsheirer.sample.complex.ComplexSamples;
+import java.util.Arrays;
 import org.apache.commons.math3.util.FastMath;
 import org.jtransforms.fft.FloatFFT_1D;
 import org.slf4j.Logger;
@@ -65,6 +66,20 @@ public class TwoChannelSynthesizerM2
         init(filter);
     }
 
+    /**
+     * Description of the state/configuration of this synthesizer to support debugging.
+     * @return state description.
+     */
+    public String getStateDescription()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Two-Channel Synthesizer");
+        sb.append("\n\t\t Interleaved Filter: " + Arrays.toString(mIQInterleavedFilter));
+        sb.append("\n\t\t Serpentine Buffer Length: ").append(mSerpentineDataBuffer.length);
+        sb.append("\n\t\t Filter Vector Product Length: ").append(mFilterVectorProduct.length);
+        return sb.toString();
+    }
+
     /**
      * Initializes the synthesizer filter and data buffers for operation.
      *
@@ -73,7 +88,6 @@ public class TwoChannelSynthesizerM2
     private void init(float[] filter)
     {
         int tapsPerChannel = (int) FastMath.ceil(filter.length / 2);
-
         mIQInterleavedFilter = getInterleavedFilter(filter, tapsPerChannel);
         mSerpentineDataBuffer = new float[mIQInterleavedFilter.length];
         mFilterVectorProduct = new float[mIQInterleavedFilter.length];

src/main/java/io/github/dsheirer/dsp/filter/channelizer/output/ChannelOutputProcessor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,8 +20,8 @@ package io.github.dsheirer.dsp.filter.channelizer.output;
 
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.sample.complex.ComplexSamples;
+import io.github.dsheirer.source.heartbeat.HeartbeatManager;
 import io.github.dsheirer.util.Dispatcher;
-import java.util.Collections;
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -31,6 +31,7 @@ public abstract class ChannelOutputProcessor implements IPolyphaseChannelOutputP
     private final static Logger mLog = LoggerFactory.getLogger(ChannelOutputProcessor.class);
 
     private Dispatcher<List<float[]>> mChannelResultsDispatcher;
+    private HeartbeatManager mHeartbeatManager;
     protected Listener<ComplexSamples> mComplexSamplesListener;
     private int mInputChannelCount;
     private long mCurrentSampleTimestamp = System.currentTimeMillis();
@@ -42,12 +43,25 @@ public abstract class ChannelOutputProcessor implements IPolyphaseChannelOutputP
      * @param inputChannelCount is the number of input channels for this output processor
      * @param sampleRate of the output channel.  This is used to match the oscillator's sample rate to the output
      * channel sample rate for frequency translation/correction.
+     * @param heartbeatManager to receive pings on the dispatcher thread
      */
-    public ChannelOutputProcessor(int inputChannelCount, double sampleRate)
+    public ChannelOutputProcessor(int inputChannelCount, double sampleRate, HeartbeatManager heartbeatManager)
     {
         mInputChannelCount = inputChannelCount;
-        mChannelResultsDispatcher = new Dispatcher<>((int)sampleRate, "sdrtrunk polyphase channel", Collections.emptyList());
-        mChannelResultsDispatcher.setListener(floats -> process(floats));
+        //Process 1/10th of the sample rate per second at a rate of 20 times a second (200% of anticipated rate)
+        mHeartbeatManager = heartbeatManager;
+        mChannelResultsDispatcher = new Dispatcher("sdrtrunk polyphase channel", (int)(sampleRate / 10),
+                50, mHeartbeatManager);
+        mChannelResultsDispatcher.setListener(floats -> {
+            try
+            {
+                process(floats);
+            }
+            catch(Throwable t)
+            {
+                mLog.error("Error processing channel results", t);
+            }
+        });
     }
 
     /**

src/main/java/io/github/dsheirer/dsp/filter/channelizer/output/IPolyphaseChannelOutputProcessor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,6 +24,11 @@ import java.util.List;
 
 public interface IPolyphaseChannelOutputProcessor
 {
+    /**
+     * Description of the state/configuration of this output processor
+     */
+    String getStateDescription();
+
     /**
      * Start processing channel results
      */

src/main/java/io/github/dsheirer/dsp/filter/channelizer/output/OneChannelOutputProcessor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 package io.github.dsheirer.dsp.filter.channelizer.output;
 
 import io.github.dsheirer.sample.complex.ComplexSamples;
+import io.github.dsheirer.source.heartbeat.HeartbeatManager;
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -36,15 +37,27 @@ public class OneChannelOutputProcessor extends ChannelOutputProcessor
      * @param sampleRate of the output sample stream.
      * @param channelIndexes containing a single channel index.
      * @param gain value to apply.  This is typically the same as the channelizer's channel count.
+     * @param heartbeatManager to receive heartbeats on the dispatch thread
      */
-    public OneChannelOutputProcessor(double sampleRate, List<Integer> channelIndexes, float gain)
+    public OneChannelOutputProcessor(double sampleRate, List<Integer> channelIndexes, float gain,
+                                     HeartbeatManager heartbeatManager)
     {
-        super(1, sampleRate);
+        super(1, sampleRate, heartbeatManager);
         setPolyphaseChannelIndices(channelIndexes);
         mMixerAssembler = new OneChannelMixerAssembler(gain);
         mMixerAssembler.getMixer().setSampleRate(sampleRate);
     }
 
+    @Override
+    public String getStateDescription()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("One Channel Output Processor");
+        sb.append("\n\tIndex (doubled) [").append(mChannelOffset).append("]");
+        sb.append("\n\tMixer Assembler: none");
+        return sb.toString();
+    }
+
     @Override
     public void setSynthesisFilter(float[] filter)
     {

src/main/java/io/github/dsheirer/dsp/filter/channelizer/output/TwoChannelMixerAssembler.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -42,6 +42,19 @@ public class TwoChannelMixerAssembler extends MixerAssembler
         super(gain);
     }
 
+    /**
+     * Description of the state/configuration of this mixer assembler.
+     */
+    public String getStateDescription()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Two Channel Mixer Assembler - State Description:");
+        sb.append("\n\tTwo-Channel Synthesizer: ").append(mTwoChannelSynthesizer.getStateDescription());
+        sb.append("\n\tMixer Frequency: ").append(getMixer().getFrequency());
+        sb.append("\n\tGain: ").append(getGain().getGain());
+        return sb.toString();
+    }
+
     /**
      * Sets the filter coefficients to use for two-channel synthesis
      * @param filter

src/main/java/io/github/dsheirer/dsp/filter/channelizer/output/TwoChannelOutputProcessor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 package io.github.dsheirer.dsp.filter.channelizer.output;
 
 import io.github.dsheirer.sample.complex.ComplexSamples;
+import io.github.dsheirer.source.heartbeat.HeartbeatManager;
 import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -37,18 +38,30 @@ public class TwoChannelOutputProcessor extends ChannelOutputProcessor
      * @param sampleRate of the output sample stream.
      * @param channelIndexes containing two channel indices.
      * @param gain to apply to output.  Typically this is equal to the channelizer's channel count.
+     * @param heartbeatManager to be pinged on the dispatcher thread
      */
-    public TwoChannelOutputProcessor(double sampleRate, List<Integer> channelIndexes, float[] filter, float gain)
+    public TwoChannelOutputProcessor(double sampleRate, List<Integer> channelIndexes, float[] filter, float gain,
+                                     HeartbeatManager heartbeatManager)
     {
         //Set the frequency correction oscillator to 2 x output sample rate since we'll be correcting the frequency
         //after synthesizing both input channels
-        super(2, sampleRate);
+        super(2, sampleRate, heartbeatManager);
         setPolyphaseChannelIndices(channelIndexes);
         mMixerAssembler = new TwoChannelMixerAssembler(gain);
         mMixerAssembler.getMixer().setSampleRate(sampleRate);
         setSynthesisFilter(filter);
     }
 
+    @Override
+    public String getStateDescription()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Two Channel Output Processor");
+        sb.append("\n\tIndices (doubled) 1 [").append(mChannelOffset1).append("] 2 [").append(mChannelOffset2).append("]");
+        sb.append("\n\tMixer Assembler: ").append(mMixerAssembler.getStateDescription());
+        return sb.toString();
+    }
+
     /**
      * Sets the frequency offset to apply to the incoming samples to mix the desired signal to baseband.
      *

src/main/java/io/github/dsheirer/dsp/gain/complex/ComplexGain.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -41,7 +41,7 @@ public abstract class ComplexGain
      * Gain value that will be applied to complex samples
      * @return gain value
      */
-    protected float getGain()
+    public float getGain()
     {
         return mGain;
     }

src/main/java/io/github/dsheirer/dsp/mixer/ComplexMixer.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -72,6 +72,15 @@ public abstract class ComplexMixer
         return mOscillator.hasFrequency();
     }
 
+    /**
+     * Current frequency of this oscillator
+     * @return frequency in hertz
+     */
+    public double getFrequency()
+    {
+        return mOscillator.getFrequency();
+    }
+
     /**
      * Sets the sample rate of the underlying oscillator
      * @param sampleRate in Hertz

src/main/java/io/github/dsheirer/dsp/oscillator/AWGNOscillator.java

@@ -0,0 +1,117 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.dsp.oscillator;
+
+import io.github.dsheirer.sample.complex.ComplexSamples;
+import java.util.Random;
+
+/**
+ * Additive white gaussian noise wrapper around a complex oscillator that mixes in gaussian noise to the complex
+ * samples generated by the underlying complex oscillator.
+ */
+public class AWGNOscillator implements IComplexOscillator
+{
+    private final Random mRandom = new Random();
+    private IComplexOscillator mComplexOscillator;
+    private float mNoiseScale;
+
+    /**
+     * Constructs an instance
+     * @param complexOscillator to generate samples
+     * @param noiseScale to apply to generated samples to reduce the power of the noise and increase the SNR.
+     */
+    public AWGNOscillator(IComplexOscillator complexOscillator, float noiseScale)
+    {
+        mComplexOscillator = complexOscillator;
+        mNoiseScale = noiseScale;
+    }
+
+    /**
+     * Produce the next scaled noise sample.
+     * @return next scaled noise sample.
+     */
+    private float nextNoise()
+    {
+        return (float)mRandom.nextGaussian() * mNoiseScale;
+    }
+
+    @Override
+    public float[] generate(int sampleCount)
+    {
+        float[] generated = mComplexOscillator.generate(sampleCount);
+
+        for(int x = 0; x < generated.length; x++)
+        {
+            generated[x] += nextNoise();
+        }
+
+        return generated;
+    }
+
+    @Override
+    public ComplexSamples generateComplexSamples(int sampleCount, long timestamp)
+    {
+        ComplexSamples samples = mComplexOscillator.generateComplexSamples(sampleCount, timestamp);
+
+        for(int x = 0; x < samples.i().length; x++)
+        {
+            samples.i()[x] += nextNoise();
+            samples.q()[x] += nextNoise();
+        }
+
+        return samples;
+    }
+
+    @Override
+    public double getFrequency()
+    {
+        return mComplexOscillator.getFrequency();
+    }
+
+    @Override
+    public void setFrequency(double frequency)
+    {
+        mComplexOscillator.setFrequency(frequency);
+    }
+
+    @Override
+    public boolean hasFrequency()
+    {
+        return mComplexOscillator.hasFrequency();
+    }
+
+    @Override
+    public double getSampleRate()
+    {
+        return mComplexOscillator.getSampleRate();
+    }
+
+    @Override
+    public void setSampleRate(double sampleRate)
+    {
+        mComplexOscillator.setSampleRate(sampleRate);
+    }
+
+    @Override
+    public boolean isEnabled()
+    {
+        return mComplexOscillator.isEnabled();
+    }
+}

src/main/java/io/github/dsheirer/dsp/psk/pll/FrequencyCorrectionSyncMonitor.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2020 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 package io.github.dsheirer.dsp.psk.pll;
 
@@ -101,7 +98,9 @@ public class FrequencyCorrectionSyncMonitor implements ISyncDetectListener, IFre
     @Override
     public void processFrequencyError(long frequencyError)
     {
-        //Only rebroadcast the frequency error if the sync count is more than 2
+        mFeedbackDecoder.broadcast(SourceEvent.pllFrequencyMeasurement(frequencyError));
+
+        //Only rebroadcast as a frequency error measurement if the sync count is more than 2
         if(mSyncCount > 2)
         {
             mFeedbackDecoder.broadcast(SourceEvent.frequencyErrorMeasurement(frequencyError));

src/main/java/io/github/dsheirer/edac/BerlekempMassey.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.edac;
@@ -34,7 +31,7 @@ import org.slf4j.LoggerFactory;
  */
 public class BerlekempMassey
 {
-    public final static Logger mLog = LoggerFactory.getLogger(BerlekempMassey.class);
+    private final static Logger mLog = LoggerFactory.getLogger(BerlekempMassey.class);
 
     /* Golay field size GF( 2 ** MM ) */
     private int MM;

src/main/java/io/github/dsheirer/edac/Checksum_5_DMR.java

@@ -0,0 +1,66 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.edac;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Implements the 5-bit Checksum error detection algorithm specified in TS 102 361-1 paragraph B.3.11
+ */
+public class Checksum_5_DMR
+{
+    private static final Logger LOGGER = LoggerFactory.getLogger(Checksum_5_DMR.class);
+
+    private static final int[] LC_0 = {0, 1, 2, 3, 4, 5, 6, 7};
+    private static final int[] LC_1 = {8, 9, 10, 11, 12, 13, 14, 15};
+    private static final int[] LC_2 = {16, 17, 18, 19, 20, 21, 22, 23};
+    private static final int[] LC_3 = {24, 25, 26, 27, 28, 29, 30, 31};
+    private static final int[] LC_4 = {32, 33, 34, 35, 36, 37, 38, 39};
+    private static final int[] LC_5 = {40, 41, 42, 43, 44, 45, 46, 47};
+    private static final int[] LC_6 = {48, 49, 50, 51, 52, 53, 54, 55};
+    private static final int[] LC_7 = {56, 57, 58, 59, 60, 61, 62, 63};
+    private static final int[] LC_8 = {64, 65, 66, 67, 68, 69, 70, 71};
+    private static final int[] CHECKSUM = {72, 73, 74, 75, 76};
+
+    /**
+     * Indicates if the 77-bit Full Link Control message is valid.
+     * @param message to check
+     * @return true if the checksum matches.
+     */
+    public static boolean isValid(CorrectedBinaryMessage message)
+    {
+        int accumulator = message.getInt(LC_0);
+        accumulator += message.getInt(LC_1);
+        accumulator += message.getInt(LC_2);
+        accumulator += message.getInt(LC_3);
+        accumulator += message.getInt(LC_4);
+        accumulator += message.getInt(LC_5);
+        accumulator += message.getInt(LC_6);
+        accumulator += message.getInt(LC_7);
+        accumulator += message.getInt(LC_8);
+
+        accumulator = accumulator % 31;
+        int checksum = message.getInt(CHECKSUM);
+
+        return accumulator == checksum;
+    }
+}

src/main/java/io/github/dsheirer/edac/ReedSolomon_12_9_4_DMR.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,12 +20,16 @@
 package io.github.dsheirer.edac;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Berlecamp-Massey decoder for Reed Solomon RS(12,9,4) protected messages using DMR generator polynomial
  */
 public class ReedSolomon_12_9_4_DMR extends ReedSolomon_255_DMR
 {
+    private final static Logger mLog = LoggerFactory.getLogger(ReedSolomon_12_9_4_DMR.class);
+
     private static final int[] FLC_CODEWORD_0 = {0, 1, 2, 3, 4, 5, 6, 7};
     private static final int[] FLC_CODEWORD_1 = {8, 9, 10, 11, 12, 13, 14, 15};
     private static final int[] FLC_CODEWORD_2 = {16, 17, 18, 19, 20, 21, 22, 23};
@@ -56,16 +60,16 @@ public class ReedSolomon_12_9_4_DMR extends ReedSolomon_255_DMR
      *
      * @param message to be corrected.
      * @param crcMask as defined in the TS 102-361-1 Table B.21
-     * @return true if the message was corrected.
+     * @return true if the message is correct or if the message was corrected.
      */
     public boolean correctFullLinkControl(CorrectedBinaryMessage message, int crcMask)
     {
         int[] input = new int[255];
         int[] output = new int[255];
 
-        input[0] = message.getInt(FLC_PARITY_2) ^ crcMask;
-        input[1] = message.getInt(FLC_PARITY_1) ^ crcMask;
-        input[2] = message.getInt(FLC_PARITY_0) ^ crcMask;
+        input[0] = (message.getInt(FLC_PARITY_2) ^ crcMask);
+        input[1] = (message.getInt(FLC_PARITY_1) ^ crcMask);
+        input[2] = (message.getInt(FLC_PARITY_0) ^ crcMask);
         input[3] = message.getInt(FLC_CODEWORD_8);
         input[4] = message.getInt(FLC_CODEWORD_7);
         input[5] = message.getInt(FLC_CODEWORD_6);
@@ -106,4 +110,40 @@ public class ReedSolomon_12_9_4_DMR extends ReedSolomon_255_DMR
 
         return true;
     }
+
+    public static void main(String[] args)
+    {
+        int[] output = new int[255];
+        int[] input = new int[255];
+        input[0] = 247;
+        input[1] = 236;
+        input[2] = 171;
+        input[3] = 24;
+        input[4] = 46;
+        input[5] = 177;
+        input[6] = 246;
+        input[7] = 205;
+        input[8] = 232;
+        input[9] = 32;
+        input[10] = 124;
+        input[11] = 0;
+
+//        input[254] = 247;
+//        input[253] = 236;
+//        input[252] = 171;
+//        input[251] = 24;
+//        input[250] = 46;
+//        input[249] = 177;
+//        input[248] = 246;
+//        input[247] = 205;
+//        input[246] = 232;
+//        input[245] = 32;
+//        input[244] = 124;
+//        input[243] = 0;
+
+        ReedSolomon_12_9_4_DMR rs = new ReedSolomon_12_9_4_DMR();
+        boolean irrecoverable = rs.decode(input, output);
+
+        mLog.info("Irrecoverable: " + irrecoverable);
+    }
 }

src/main/java/io/github/dsheirer/gui/JavaFxWindowManager.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,6 +24,8 @@ import io.github.dsheirer.alias.AliasModel;
 import io.github.dsheirer.controller.channel.map.ChannelMap;
 import io.github.dsheirer.controller.channel.map.ChannelRange;
 import io.github.dsheirer.eventbus.MyEventBus;
+import io.github.dsheirer.gui.dmr.DMRRecordingViewer;
+import io.github.dsheirer.gui.dmr.ViewDmrRecordingViewerRequest;
 import io.github.dsheirer.gui.icon.IconManager;
 import io.github.dsheirer.gui.icon.ViewIconManagerRequest;
 import io.github.dsheirer.gui.playlist.PlaylistEditor;
@@ -65,6 +67,7 @@ public class JavaFxWindowManager extends Application
     public static final String USER_PREFERENCES_EDITOR = "preferences";
     public static final String STAGE_MONITOR_KEY_CALIBRATION_DIALOG = "calibration.dialog";
     public static final String STAGE_MONITOR_KEY_CHANNEL_MAP_EDITOR = "channel.map";
+    public static final String STAGE_MONITOR_KEY_DMR_MESSAGE_VIEWER = "dmr.message.viewer";
     public static final String STAGE_MONITOR_KEY_ICON_MANAGER_EDITOR = "icon.manager";
     public static final String STAGE_MONITOR_KEY_JMBE_EDITOR = "jmbe.editor";
     public static final String STAGE_MONITOR_KEY_PLAYLIST_EDITOR = "playlist";
@@ -79,12 +82,14 @@ public class JavaFxWindowManager extends Application
     private TunerManager mTunerManager;
     private UserPreferences mUserPreferences;
     private UserPreferencesEditor mUserPreferencesEditor;
+    private DMRRecordingViewer mDmrRecordingViewer;
 
     private Stage mChannelMapStage;
     private Stage mIconManagerStage;
     private Stage mJmbeEditorStage;
     private Stage mPlaylistStage;
     private Stage mUserPreferencesStage;
+    private Stage mDmrRecordingViewerStage;
 
     /**
      * Constructs an instance.  Note: this constructor is used for Swing applications.
@@ -189,6 +194,34 @@ public class JavaFxWindowManager extends Application
         return new CalibrationDialog(userPreferences);
     }
 
+    /**
+     * Stage for the DMR Message Viewer
+     */
+    public Stage getDmrRecordingViewerStage()
+    {
+        if(mDmrRecordingViewerStage == null)
+        {
+            createJFXPanel();
+            Scene scene = new Scene(getDmrRecordingViewer(), 1100, 800);
+            mDmrRecordingViewerStage = new Stage();
+            mDmrRecordingViewerStage.setTitle("sdrtrunk - DMR Recording Viewer");
+            mDmrRecordingViewerStage.setScene(scene);
+            mUserPreferences.getJavaFxPreferences().monitor(mDmrRecordingViewerStage, STAGE_MONITOR_KEY_DMR_MESSAGE_VIEWER);
+        }
+
+        return mDmrRecordingViewerStage;
+    }
+
+    public DMRRecordingViewer getDmrRecordingViewer()
+    {
+        if(mDmrRecordingViewer == null)
+        {
+            mDmrRecordingViewer = new DMRRecordingViewer();
+        }
+
+        return mDmrRecordingViewer;
+    }
+
     public Stage getIconManagerStage()
     {
         if(mIconManagerStage == null)
@@ -416,6 +449,19 @@ public class JavaFxWindowManager extends Application
         });
     }
 
+    /**
+     * Process a channel map editor request
+     */
+    @Subscribe
+    public void process(final ViewDmrRecordingViewerRequest request)
+    {
+        execute(() -> {
+            getDmrRecordingViewerStage().show();
+            getDmrRecordingViewerStage().requestFocus();
+            getDmrRecordingViewerStage().toFront();
+        });
+    }
+
     @Override
     public void start(Stage primaryStage) throws Exception
     {

src/main/java/io/github/dsheirer/gui/SDRTrunk.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -32,6 +32,7 @@ import io.github.dsheirer.controller.channel.ChannelAutoStartFrame;
 import io.github.dsheirer.controller.channel.ChannelException;
 import io.github.dsheirer.controller.channel.ChannelSelectionManager;
 import io.github.dsheirer.eventbus.MyEventBus;
+import io.github.dsheirer.gui.dmr.ViewDmrRecordingViewerRequest;
 import io.github.dsheirer.gui.icon.ViewIconManagerRequest;
 import io.github.dsheirer.gui.playlist.ViewPlaylistRequest;
 import io.github.dsheirer.gui.preference.CalibrateRequest;
@@ -59,6 +60,26 @@ import io.github.dsheirer.spectrum.SpectralDisplayPanel;
 import io.github.dsheirer.util.ThreadPool;
 import io.github.dsheirer.util.TimeStamp;
 import io.github.dsheirer.vector.calibrate.CalibrationManager;
+import java.awt.AWTException;
+import java.awt.Desktop;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.GraphicsEnvironment;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Locale;
+import java.util.Optional;
 import javafx.application.Platform;
 import javafx.scene.control.ButtonType;
 import jiconfont.icons.font_awesome.FontAwesome;
@@ -80,26 +101,6 @@ import javax.swing.UIManager;
 import javax.swing.event.MenuEvent;
 import javax.swing.event.MenuListener;
 import javax.swing.plaf.metal.MetalLookAndFeel;
-import java.awt.AWTException;
-import java.awt.Desktop;
-import java.awt.Dimension;
-import java.awt.EventQueue;
-import java.awt.GraphicsEnvironment;
-import java.awt.Point;
-import java.awt.Robot;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.awt.image.BufferedImage;
-import java.io.IOException;
-import java.nio.file.FileSystems;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.List;
-import java.util.Locale;
-import java.util.Optional;
 
 public class SDRTrunk implements Listener<TunerEvent>
 {
@@ -247,7 +248,11 @@ public class SDRTrunk implements Listener<TunerEvent>
                 {
                     mMainGui.setVisible(true);
                     Tuner tuner = tunerSpectralDisplayManager.showFirstTuner();
-                    updateTitle(tuner);
+
+                    if(tuner != null)
+                    {
+                        updateTitle(tuner.getPreferredName());
+                    }
                 }
 
                 if(calibrating && !GraphicsEnvironment.isHeadless())
@@ -308,7 +313,7 @@ public class SDRTrunk implements Listener<TunerEvent>
             }
             else
             {
-                new ChannelAutoStartFrame(mPlaylistManager.getChannelProcessingManager(), channels);
+                new ChannelAutoStartFrame(mPlaylistManager.getChannelProcessingManager(), channels, mUserPreferences);
             }
         }
     }
@@ -413,9 +418,11 @@ public class SDRTrunk implements Listener<TunerEvent>
         viewPlaylistItem.addActionListener(e -> MyEventBus.getGlobalEventBus().post(new ViewPlaylistRequest()));
         viewMenu.add(viewPlaylistItem);
 
-        JMenuItem preferencesItem = new JMenuItem("User Preferences");
-        preferencesItem.addActionListener(e -> MyEventBus.getGlobalEventBus().post(new ViewUserPreferenceEditorRequest()));
-        viewMenu.add(preferencesItem);
+        viewMenu.add(new JSeparator());
+
+        JMenuItem dmrMessageViewerMenu = new JMenuItem("DMR Recording Viewer");
+        dmrMessageViewerMenu.addActionListener(e -> MyEventBus.getGlobalEventBus().post(new ViewDmrRecordingViewerRequest()));
+        viewMenu.add(dmrMessageViewerMenu);
 
         JMenuItem settingsMenu = new JMenuItem("Icon Manager");
         settingsMenu.addActionListener(arg0 -> MyEventBus.getGlobalEventBus().post(new ViewIconManagerRequest()));
@@ -436,15 +443,19 @@ public class SDRTrunk implements Listener<TunerEvent>
                     mLog.error("Couldn't open file explorer");
 
                     JOptionPane.showMessageDialog(mMainGui,
-                        "Can't launch file explorer - files are located at: " +
-                            getHomePath().toString(),
-                        "Can't launch file explorer",
-                        JOptionPane.ERROR_MESSAGE);
+                            "Can't launch file explorer - files are located at: " +
+                                    getHomePath().toString(),
+                            "Can't launch file explorer",
+                            JOptionPane.ERROR_MESSAGE);
                 }
             }
         });
         viewMenu.add(logFilesMenu);
 
+        JMenuItem preferencesItem = new JMenuItem("User Preferences");
+        preferencesItem.addActionListener(e -> MyEventBus.getGlobalEventBus().post(new ViewUserPreferenceEditorRequest()));
+        viewMenu.add(preferencesItem);
+
         viewMenu.add(new JSeparator());
         viewMenu.add(new TunersMenu());
         viewMenu.add(new JSeparator());
@@ -623,21 +634,34 @@ public class SDRTrunk implements Listener<TunerEvent>
     @Override
     public void receive(TunerEvent event)
     {
-        if(event.getEvent() == TunerEvent.Event.REQUEST_MAIN_SPECTRAL_DISPLAY)
+        switch(event.getEvent())
         {
-            updateTitle(event.getTuner());
+            case REQUEST_MAIN_SPECTRAL_DISPLAY:
+                updateTitle(event.getTuner().getPreferredName());
+                break;
+            case REQUEST_CLEAR_MAIN_SPECTRAL_DISPLAY:
+                updateTitle(null);
+                break;
+            case NOTIFICATION_SHUTTING_DOWN:
+                Tuner currentTuner = mSpectralPanel.getTuner();
+
+                if(event.hasTuner() && event.getTuner().equals(currentTuner) || currentTuner == null)
+                {
+                    updateTitle(null);
+                }
+                break;
         }
     }
 
     /**
      * Updates the title bar with the tuner name
-     * @param tuner optional
+     * @param tunerName optional
      */
-    private void updateTitle(Tuner tuner)
+    private void updateTitle(String tunerName)
     {
-        if(tuner != null)
+        if(tunerName != null)
         {
-            mMainGui.setTitle(mTitle + " - " + tuner.getPreferredName());
+            mMainGui.setTitle(mTitle + " - " + tunerName);
         }
         else
         {

src/main/java/io/github/dsheirer/gui/channelizer/ChannelizerViewer2.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +20,7 @@ package io.github.dsheirer.gui.channelizer;
 
 import io.github.dsheirer.buffer.FloatNativeBuffer;
 import io.github.dsheirer.buffer.INativeBuffer;
+import io.github.dsheirer.dsp.filter.channelizer.PolyphaseChannelSource;
 import io.github.dsheirer.sample.Listener;
 import io.github.dsheirer.sample.complex.ComplexSamples;
 import io.github.dsheirer.settings.SettingsManager;
@@ -36,6 +37,12 @@ import io.github.dsheirer.spectrum.ComplexDftProcessor;
 import io.github.dsheirer.spectrum.DFTSize;
 import io.github.dsheirer.spectrum.SpectrumPanel;
 import io.github.dsheirer.spectrum.converter.ComplexDecibelConverter;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+import java.util.List;
 import net.miginfocom.swing.MigLayout;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -50,12 +57,6 @@ import javax.swing.JToggleButton;
 import javax.swing.SpinnerNumberModel;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
-import java.awt.Dimension;
-import java.awt.EventQueue;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.util.ArrayList;
-import java.util.List;
 
 public class ChannelizerViewer2 extends JFrame
 {
@@ -194,9 +195,9 @@ public class ChannelizerViewer2 extends JFrame
 
                             getTopChannelArrayPanel().addChannel(tunerChannel);
                         }
-                        catch(Exception exception)
+                        catch(Exception e1)
                         {
-                            mLog.error("Can't parse frequency from value: " + value);
+                            mLog.error("Can't parse frequency from value: " + value, e1);
                         }
                     }
                 }
@@ -229,9 +230,9 @@ public class ChannelizerViewer2 extends JFrame
 
                             getBottomChannelArrayPanel().addChannel(tunerChannel);
                         }
-                        catch(Exception exception)
+                        catch(Exception e1)
                         {
-                            mLog.error("Can't parse frequency from value: " + value);
+                            mLog.error("Can't parse frequency from value: " + value, e1);
                         }
                     }
                 }
@@ -388,6 +389,26 @@ public class ChannelizerViewer2 extends JFrame
                     mComplexDftProcessor.receive(new FloatNativeBuffer(complexSamples.toInterleaved()));
                 });
 
+                if(mSource instanceof PolyphaseChannelSource pcs)
+                {                    List<Integer> indexes = pcs.getOutputProcessorIndexes();
+                    double sRate = pcs.getSampleRate();
+                    long indexCenterFrequency = pcs.getIndexCenterFrequency();
+                    long appliedFrequencyOffset = pcs.getFrequencyOffset();
+                    long requestedCenterFrequency = pcs.getFrequency();
+
+                    StringBuilder sb = new StringBuilder();
+                    sb.append("Polyphase Channel - Bandwidth: ").append(sRate);
+                    sb.append(" Channel/Requested/Offset: ").append(indexCenterFrequency);
+                    sb.append("/").append(requestedCenterFrequency);
+                    sb.append("/").append(appliedFrequencyOffset);
+                    sb.append(" Indexes: ").append(indexes);
+                    sb.append(" Tuner SR:").append(pcs.getTunerSampleRate());
+                    sb.append(" Tuner CF:").append(pcs.getTunerCenterFrequency());
+                    mLog.info(sb.toString());
+
+
+                }
+
                 mSource.start();
             }
             else

src/main/java/io/github/dsheirer/gui/dmr/DMRRecordingViewer.java

@@ -0,0 +1,538 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.gui.dmr;
+
+import io.github.dsheirer.message.IMessage;
+import io.github.dsheirer.module.decode.dmr.DMRMessageFramer;
+import io.github.dsheirer.module.decode.dmr.DMRMessageProcessor;
+import io.github.dsheirer.module.decode.dmr.DecodeConfigDMR;
+import io.github.dsheirer.record.binary.BinaryReader;
+import java.io.File;
+import java.nio.ByteBuffer;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.function.Predicate;
+import java.util.prefs.Preferences;
+import javafx.application.Application;
+import javafx.application.Platform;
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.value.ObservableValue;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.collections.transformation.FilteredList;
+import javafx.collections.transformation.SortedList;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.CheckBox;
+import javafx.scene.control.Label;
+import javafx.scene.control.TableColumn;
+import javafx.scene.control.TablePosition;
+import javafx.scene.control.TableView;
+import javafx.scene.control.TextField;
+import javafx.scene.control.cell.PropertyValueFactory;
+import javafx.scene.input.Clipboard;
+import javafx.scene.input.ClipboardContent;
+import javafx.scene.input.KeyCode;
+import javafx.scene.input.KeyCodeCombination;
+import javafx.scene.input.KeyCombination;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
+import javafx.scene.layout.VBox;
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+import javafx.util.Callback;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Utility application to load and view a DMR .bits recording file with the messages fully parsed.
+ */
+public class DMRRecordingViewer extends VBox
+{
+    private static final Logger mLog = LoggerFactory.getLogger(DMRRecordingViewer.class);
+    private static final KeyCodeCombination KEY_CODE_COPY = new KeyCodeCombination(KeyCode.C, KeyCombination.CONTROL_ANY);
+    private static final String LAST_SELECTED_DIRECTORY = "last.selected.directory";
+    private Preferences mPreferences = Preferences.userNodeForPackage(DMRRecordingViewer.class);
+    private Scene mScene;
+    private Button mSelectFileButton;
+    private Label mSelectedFileLabel;
+    private TableView<IMessage> mMessageTableView;
+    private ObservableList<IMessage> mMessages = FXCollections.observableArrayList();
+    private FilteredList<IMessage> mFilteredMessages = new FilteredList<>(mMessages);
+    private CheckBox mShowTS0;
+    private CheckBox mShowTS1;
+    private CheckBox mShowTS2;
+    private CheckBox mUseCompressedTalkgroups;
+    private TextField mSearchText;
+    private TextField mFindText;
+    private Button mFindButton;
+    private Button mFindNextButton;
+
+    public DMRRecordingViewer()
+    {
+        setPadding(new Insets(5));
+        setSpacing(5);
+
+        HBox fileBox = new HBox();
+        fileBox.setMaxWidth(Double.MAX_VALUE);
+        fileBox.setAlignment(Pos.CENTER_LEFT);
+        fileBox.setSpacing(5);
+        HBox.setHgrow(getSelectFileButton(), Priority.NEVER);
+        HBox.setHgrow(getSelectedFileLabel(), Priority.ALWAYS);
+        getSelectedFileLabel().setAlignment(Pos.BASELINE_CENTER);
+
+        HBox compressedBox = new HBox();
+        compressedBox.setAlignment(Pos.CENTER_RIGHT);
+        compressedBox.setMaxWidth(Double.MAX_VALUE);
+        compressedBox.getChildren().addAll(getUseCompressedTalkgroups());
+        HBox.setHgrow(compressedBox, Priority.ALWAYS);
+
+        fileBox.getChildren().addAll(getSelectFileButton(), getSelectedFileLabel(), compressedBox);
+
+        HBox filterBox = new HBox();
+        filterBox.setMaxWidth(Double.MAX_VALUE);
+        filterBox.setAlignment(Pos.BASELINE_CENTER);
+        filterBox.setSpacing(5);
+
+        Label showLabel = new Label("Show:");
+        HBox.setMargin(showLabel, new Insets(0,0,0,15));
+        Label searchLabel = new Label("Message Filter:");
+        HBox.setMargin(searchLabel, new Insets(0,0,0,15));
+        Label findLabel = new Label("Find:");
+
+        HBox.setHgrow(getFindText(), Priority.ALWAYS);
+        HBox.setHgrow(getSearchText(), Priority.ALWAYS);
+
+        filterBox.getChildren().addAll(findLabel, getFindText(), getFindButton(), getFindNextButton(), searchLabel,
+                getSearchText(), showLabel, getShowTS0(), getShowTS1(), getShowTS2());
+
+        VBox.setVgrow(fileBox, Priority.NEVER);
+        VBox.setVgrow(filterBox, Priority.NEVER);
+        VBox.setVgrow(getMessageTableView(), Priority.ALWAYS);
+
+        getChildren().addAll(fileBox, filterBox, getMessageTableView());
+    }
+
+    /**
+     * Processes the recording file and loads the content into the viewer
+     * @param file containing a .bits recording of decoded DMR data.
+     */
+    private void load(File file)
+    {
+        if(file != null && file.exists())
+        {
+            getSelectedFileLabel().setText(file.getName());
+            mMessages.clear();
+
+            DMRMessageFramer messageFramer = new DMRMessageFramer(null);
+            DecodeConfigDMR config = new DecodeConfigDMR();
+            if(getUseCompressedTalkgroups().isSelected())
+            {
+                config.setUseCompressedTalkgroups(true);
+            }
+            DMRMessageProcessor messageProcessor = new DMRMessageProcessor(config);
+            messageFramer.setListener(messageProcessor);
+            messageProcessor.setMessageListener(message -> mMessages.add(message));
+
+            try(BinaryReader reader = new BinaryReader(file.toPath(), 200))
+            {
+                while(reader.hasNext())
+                {
+                    ByteBuffer buffer = reader.next();
+                    messageFramer.receive(buffer);
+                }
+            }
+            catch(Exception ioe)
+            {
+                ioe.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * Updates the filter(s) applies to the list of messages
+     */
+    private void updateFilters()
+    {
+        Predicate<IMessage> timeslotPredicate = message ->
+               (getShowTS0().isSelected() && (message.getTimeslot() == 0)) ||
+               (getShowTS1().isSelected() && (message.getTimeslot() == 1)) ||
+               (getShowTS2().isSelected() && (message.getTimeslot() == 2));
+
+        String filterText = getSearchText().getText();
+
+        if(filterText == null || filterText.isEmpty())
+        {
+            mFilteredMessages.setPredicate(timeslotPredicate);
+        }
+        else
+        {
+            Predicate<IMessage> textPredicate = message -> message.toString().toLowerCase().contains(filterText.toLowerCase());
+            mFilteredMessages.setPredicate(timeslotPredicate.and(textPredicate));
+        }
+    }
+
+    /**
+     * Finds and selects the first row containing the text argument.
+     * @param text to search for.
+     */
+    private void find(String text)
+    {
+        if(text != null && !text.isEmpty())
+        {
+            for(IMessage message: mFilteredMessages)
+            {
+                if(message.toString().toLowerCase().contains(text.toLowerCase()))
+                {
+                    getMessageTableView().getSelectionModel().select(message);
+                    getMessageTableView().scrollTo(message);
+                    return;
+                }
+            }
+        }
+    }
+
+    /**
+     * Finds and selects the first row containing the text argument, after the currently selected row.
+     * @param text to search for.
+     */
+    private void findNext(String text)
+    {
+        if(text != null && !text.isEmpty())
+        {
+            IMessage selected = getMessageTableView().getSelectionModel().getSelectedItem();
+
+            if(selected == null)
+            {
+                find(text);
+                return;
+            }
+
+            int row = mFilteredMessages.indexOf(selected);
+
+            for(int x = row + 1; x < mFilteredMessages.size(); x++)
+            {
+                if(x < mFilteredMessages.size())
+                {
+                    IMessage message = mFilteredMessages.get(x);
+
+                    if(message.toString().toLowerCase().contains(text.toLowerCase()))
+                    {
+                        getMessageTableView().getSelectionModel().select(message);
+                        getMessageTableView().scrollTo(message);
+                        return;
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * List view control with DMR messages
+     */
+    private TableView<IMessage> getMessageTableView()
+    {
+        if(mMessageTableView == null)
+        {
+            mMessageTableView = new TableView<>();
+            SortedList<IMessage> sortedList = new SortedList<>(mFilteredMessages);
+            sortedList.comparatorProperty().bind(mMessageTableView.comparatorProperty());
+            mMessageTableView.setItems(sortedList);
+
+            mMessageTableView.setOnKeyPressed(event ->
+            {
+                if(KEY_CODE_COPY.match(event))
+                {
+                    final Set<Integer> rows = new TreeSet<>();
+                    for (final TablePosition tablePosition : mMessageTableView.getSelectionModel().getSelectedCells())
+                    {
+                        rows.add(tablePosition.getRow());
+                    }
+
+                    final StringBuilder sb = new StringBuilder();
+                    boolean firstRow = true;
+                    for (final Integer row : rows)
+                    {
+                        if(firstRow)
+                        {
+                            firstRow = false;
+                        }
+                        else
+                        {
+                            sb.append('\n');
+                        }
+
+                        boolean firstCol = true;
+
+                        for (final TableColumn<?, ?> column : mMessageTableView.getColumns())
+                        {
+                            if(firstCol)
+                            {
+                                firstCol = false;
+                            }
+                            else
+                            {
+                                sb.append('\t');
+                            }
+
+                            final Object cellData = column.getCellData(row);
+                            sb.append(cellData == null ? "" : cellData.toString());
+                        }
+                    }
+                    final ClipboardContent clipboardContent = new ClipboardContent();
+                    clipboardContent.putString(sb.toString());
+                    Clipboard.getSystemClipboard().setContent(clipboardContent);
+                }
+            });
+
+            TableColumn timestampColumn = new TableColumn();
+            timestampColumn.setPrefWidth(110);
+            timestampColumn.setText("Time");
+            timestampColumn.setCellValueFactory(new PropertyValueFactory<>("timestamp"));
+
+            TableColumn timeslotColumn = new TableColumn();
+            timeslotColumn.setPrefWidth(35);
+            timeslotColumn.setText("TS");
+            timeslotColumn.setCellValueFactory(new PropertyValueFactory<>("timeslot"));
+
+            TableColumn validColumn = new TableColumn();
+            validColumn.setPrefWidth(50);
+            validColumn.setText("Valid");
+            validColumn.setCellValueFactory(new PropertyValueFactory<>("valid"));
+
+            TableColumn messageColumn = new TableColumn();
+            messageColumn.setPrefWidth(1000);
+            messageColumn.setText("Message");
+            messageColumn.setCellValueFactory((Callback<TableColumn.CellDataFeatures, ObservableValue>) param -> {
+                SimpleStringProperty property = new SimpleStringProperty();
+                if(param.getValue() instanceof IMessage message)
+                {
+                    property.set(message.toString());
+                }
+
+                return property;
+            });
+
+            mMessageTableView.getColumns().addAll(timestampColumn, validColumn, timeslotColumn, messageColumn);
+        }
+
+        return mMessageTableView;
+    }
+
+    /**
+     * File selection button
+     * @return button
+     */
+    private Button getSelectFileButton()
+    {
+        if(mSelectFileButton == null)
+        {
+            mSelectFileButton = new Button("Select ...");
+            mSelectFileButton.onActionProperty().set(event -> {
+                FileChooser fileChooser = new FileChooser();
+                fileChooser.setTitle("Select DMR .bits Recording");
+                String lastDirectory = mPreferences.get(LAST_SELECTED_DIRECTORY, null);
+                if(lastDirectory != null)
+                {
+                    File file = new File(lastDirectory);
+                    if(file.exists() && file.isDirectory())
+                    {
+                        fileChooser.setInitialDirectory(file);
+                    }
+                }
+                fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter("sdrtrunk bits recording", "*.bits"));
+                File selected = fileChooser.showOpenDialog(getScene().getWindow());
+
+                if(selected != null)
+                {
+                    mLog.info("Last Selected Directory updated to [" + selected.getParent() +"]");
+                    mPreferences.put(LAST_SELECTED_DIRECTORY, selected.getParent());
+                    load(selected);
+                }
+            });
+        }
+
+        return mSelectFileButton;
+    }
+
+    /**
+     * Selected file path label.
+     */
+    private Label getSelectedFileLabel()
+    {
+        if(mSelectedFileLabel == null)
+        {
+            mSelectedFileLabel = new Label(" ");
+        }
+
+        return mSelectedFileLabel;
+    }
+
+    /**
+     * Check box to apply filter to show/hide TS0 messages
+     * @return check box control
+     */
+    private CheckBox getShowTS0()
+    {
+        if(mShowTS0 == null)
+        {
+            mShowTS0 = new CheckBox("TS0");
+            mShowTS0.setSelected(true);
+            mShowTS0.setOnAction(event -> updateFilters());
+        }
+
+        return mShowTS0;
+    }
+
+    /**
+     * Check box to apply filter to show/hide TS0 messages
+     * @return check box control
+     */
+    private CheckBox getShowTS1()
+    {
+        if(mShowTS1 == null)
+        {
+            mShowTS1 = new CheckBox("TS1");
+            mShowTS1.setSelected(true);
+            mShowTS1.setOnAction(event -> updateFilters());
+        }
+
+        return mShowTS1;
+    }
+
+    /**
+     * Check box to apply filter to show/hide TS0 messages
+     * @return check box control
+     */
+    private CheckBox getShowTS2()
+    {
+        if(mShowTS2 == null)
+        {
+            mShowTS2 = new CheckBox("TS2");
+            mShowTS2.setSelected(true);
+            mShowTS2.setOnAction(event -> updateFilters());
+        }
+
+        return mShowTS2;
+    }
+
+    /**
+     * Search text filter box
+     * @return text control for entering search text
+     */
+    private TextField getSearchText()
+    {
+        if(mSearchText == null)
+        {
+            mSearchText = new TextField();
+            mSearchText.textProperty().addListener((observable, oldValue, newValue) -> updateFilters());
+        }
+
+        return mSearchText;
+    }
+
+    /**
+     * Text box for find text
+     */
+    private TextField getFindText()
+    {
+        if(mFindText == null)
+        {
+            mFindText = new TextField();
+            mFindText.textProperty().addListener((observable, oldValue, newValue) -> updateFilters());
+        }
+
+        return mFindText;
+    }
+
+    /**
+     * Find button to search for the text in the find text box.
+     * @return button
+     */
+    private Button getFindButton()
+    {
+        if(mFindButton == null)
+        {
+            mFindButton = new Button("Find");
+            mFindButton.setOnAction(event -> find(getFindText().getText()));
+        }
+
+        return mFindButton;
+    }
+
+    /**
+     * Find next button to search for the text in the find text box.
+     * @return button
+     */
+    private Button getFindNextButton()
+    {
+        if(mFindNextButton == null)
+        {
+            mFindNextButton = new Button("Next");
+            mFindNextButton.setOnAction(event -> findNext(getFindText().getText()));
+        }
+
+        return mFindNextButton;
+    }
+
+    /**
+     * Use Hytera Tier 3 Compressed Talkgroups
+     * @return
+     */
+    private CheckBox getUseCompressedTalkgroups()
+    {
+        if(mUseCompressedTalkgroups == null)
+        {
+            mUseCompressedTalkgroups = new CheckBox("Use Compressed Talkgroups");
+        }
+
+        return mUseCompressedTalkgroups;
+    }
+
+    public static void main(String[] args)
+    {
+        Application viewer = new Application()
+        {
+            @Override
+            public void start(Stage primaryStage) throws Exception
+            {
+                Scene scene = new Scene(new DMRRecordingViewer(), 1100, 800);
+                primaryStage.setTitle("DMR Recording Viewer");
+                primaryStage.setScene(scene);
+                primaryStage.show();
+            }
+        };
+
+        Runnable r = () -> {
+            try
+            {
+                viewer.start(new Stage());
+            }
+            catch(Exception e)
+            {
+                mLog.error("Error starting DMR recording viewer application", e);
+            }
+        };
+
+        Platform.startup(r);
+    }
+}

src/main/java/io/github/dsheirer/gui/dmr/ViewDmrRecordingViewerRequest.java

@@ -0,0 +1,33 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.gui.dmr;
+
+import io.github.dsheirer.gui.JavaFxWindowRequest;
+
+/**
+ * Request to show the DMR recording viewer
+ */
+public class ViewDmrRecordingViewerRequest extends JavaFxWindowRequest
+{
+    /**
+     * Constructs an instance
+     */
+    public ViewDmrRecordingViewerRequest() {}
+}

src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/RadioIdEditor.java

@@ -217,6 +217,9 @@ public class RadioIdEditor extends IdentifierEditor<Radio>
             }
         }
 
+        mLog.warn("Unable to find radio id editor for protocol [" + protocol + "] and format [" + integerFormat +
+                "] - using default editor");
+
         //Use a default instance
         for(RadioDetail detail: mRadioDetails)
         {

src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/RadioIdRangeEditor.java

@@ -159,7 +159,7 @@ public class RadioIdRangeEditor extends IdentifierEditor<RadioRange>
             else
             {
                 mLog.warn("Couldn't find radio ID detail for protocol [" + getItem().getProtocol() +
-                    "] and format [" + format + "]");
+                        "] and format [" + format + "]");
                 getFormatLabel().setText(" ");
             }
         }
@@ -267,6 +267,9 @@ public class RadioIdRangeEditor extends IdentifierEditor<RadioRange>
             }
         }
 
+        mLog.warn("Unable to find radio id range editor for protocol [" + protocol + "] and format [" + integerFormat +
+                "] - using default editor");
+
         //Use a default instance
         for(RadioIdDetail detail: mRadioDetails)
         {
@@ -287,20 +290,23 @@ public class RadioIdRangeEditor extends IdentifierEditor<RadioRange>
     {
         List<RadioIdDetail> details = new ArrayList<>();
         details.add(new RadioIdDetail(Protocol.APCO25, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFFFF),
-            new IntegerFormatter(0,0xFFFFFF), "Format: 0 - 16777215"));
+                new IntegerFormatter(0,0xFFFFFF), "Format: 0 - 16777215"));
         details.add(new RadioIdDetail(Protocol.APCO25, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFFFF),
-            new HexFormatter(0,0xFFFFFF), "Format: 0 - FFFFFF"));
+                new HexFormatter(0,0xFFFFFF), "Format: 0 - FFFFFF"));
         details.add(new RadioIdDetail(Protocol.PASSPORT, IntegerFormat.DECIMAL, new IntegerFormatter(0,0x7FFFFF),
-            new IntegerFormatter(0,0x7FFFFF), "Format: 0 - 8388607"));
+                new IntegerFormatter(0,0x7FFFFF), "Format: 0 - 8388607"));
         details.add(new RadioIdDetail(Protocol.PASSPORT, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0x7FFFFF),
-            new HexFormatter(0,0x7FFFFF), "Format: 0 - 7FFFFF"));
+                new HexFormatter(0,0x7FFFFF), "Format: 0 - 7FFFFF"));
         details.add(new RadioIdDetail(Protocol.UNKNOWN, IntegerFormat.DECIMAL, new IntegerFormatter(0,16777215),
-            new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
+                new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
         details.add(new RadioIdDetail(Protocol.UNKNOWN, IntegerFormat.FORMATTED, new IntegerFormatter(0,16777215),
-            new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
+                new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
         details.add(new RadioIdDetail(Protocol.UNKNOWN, IntegerFormat.HEXADECIMAL, new HexFormatter(0,16777215),
-            new HexFormatter(0,16777215), "Format: 0 - FFFFFF"));
-
+                new HexFormatter(0,16777215), "Format: 0 - FFFFFF"));
+        details.add(new RadioIdDetail(Protocol.DMR, IntegerFormat.DECIMAL, new IntegerFormatter(0,16777215),
+                new IntegerFormatter(0,16777215), "Format: 0 - 16777215"));
+        details.add(new RadioIdDetail(Protocol.DMR, IntegerFormat.HEXADECIMAL, new HexFormatter(0,16777215),
+                new HexFormatter(0,16777215), "Format: 0 - FFFFFF"));
         return details;
     }
 

src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupEditor.java

@@ -135,7 +135,7 @@ public class TalkgroupEditor extends IdentifierEditor<Talkgroup>
             else
             {
                 mLog.warn("Couldn't find talkgroup detail for protocol [" + getItem().getProtocol() +
-                    "] and format [" + format + "]");
+                        "] and format [" + format + "]");
             }
 
             getFormatLabel().setText(talkgroupDetail.getTooltip());
@@ -219,6 +219,9 @@ public class TalkgroupEditor extends IdentifierEditor<Talkgroup>
             }
         }
 
+        mLog.warn("Unable to find talkgroup editor for protocol [" + protocol + "] and format [" + integerFormat +
+                "] - using default editor");
+
         //Use a default instance
         for(TalkgroupDetail detail: mTalkgroupDetails)
         {
@@ -236,37 +239,37 @@ public class TalkgroupEditor extends IdentifierEditor<Talkgroup>
     {
         mTalkgroupDetails.clear();
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.APCO25, IntegerFormat.DECIMAL, new IntegerFormatter(0,65535),
-            "Format: 0 - 65535"));
+                "Format: 0 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.APCO25, IntegerFormat.HEXADECIMAL, new HexFormatter(0,65535),
-            "Format: 0 - FFFF"));
-        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFFFF),
-            "Format: 0 - 16,777,215"));
-        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFFFF),
-            "Format: 0 - FFFFFF"));
+                "Format: 0 - FFFF"));
+        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.DECIMAL, new IntegerFormatter(1,0xFFFFFF),
+                "Format: 1 - 16,777,215"));
+        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.HEXADECIMAL, new HexFormatter(1,0xFFFFFF),
+                "Format: 1 - FFFFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.FLEETSYNC, IntegerFormat.FORMATTED,
-            new PrefixIdentFormatter(0,0xFFFFF), "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
+                new PrefixIdentFormatter(0,0xFFFFF), "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.LTR, IntegerFormat.FORMATTED, new LtrFormatter(0,0x3FFF),
-            "Format: A-HH-TTT = Area (0-1), Home (1-31), Talkgroup (1-255)"));
+                "Format: A-HH-TTT = Area (0-1), Home (1-31), Talkgroup (1-255)"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.MDC1200, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
-            "Format: 0 - 65535"));
+                "Format: 0 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.MDC1200, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),
-            "Format: 0 - FFFF"));
+                "Format: 0 - FFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.MPT1327, IntegerFormat.FORMATTED,
-            new PrefixIdentFormatter(0,0xFFFFF), "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
+                new PrefixIdentFormatter(0,0xFFFFF), "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NBFM, IntegerFormat.DECIMAL, new IntegerFormatter(1,0xFFFF),
-            "Format: 1 - 65535"));
+                "Format: 1 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NBFM, IntegerFormat.HEXADECIMAL, new HexFormatter(1,0xFFFF),
-            "Format: 1 - FFFF"));
+                "Format: 1 - FFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
                 "Format: 0 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),
                 "Format: 0 - FFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.DECIMAL, new IntegerFormatter(0,16777215),
-            "Format: 0 - FFFFFF"));
+                "Format: 0 - FFFFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.FORMATTED, new IntegerFormatter(0,16777215),
-            "Format: 0 - FFFFFF"));
+                "Format: 0 - FFFFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.HEXADECIMAL, new HexFormatter(0,16777215),
-            "Format: 0 - FFFFFF"));
+                "Format: 0 - FFFFFF"));
     }
 
     public static class TalkgroupDetail

src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupRangeEditor.java

@@ -161,7 +161,7 @@ public class TalkgroupRangeEditor extends IdentifierEditor<TalkgroupRange>
             else
             {
                 mLog.warn("Couldn't find talkgroup detail for protocol [" + getItem().getProtocol() +
-                    "] and format [" + format + "]");
+                        "] and format [" + format + "]");
                 getFormatLabel().setText(" ");
             }
         }
@@ -269,6 +269,9 @@ public class TalkgroupRangeEditor extends IdentifierEditor<TalkgroupRange>
             }
         }
 
+        mLog.warn("Unable to find talkgroup range editor for protocol [" + protocol + "] and format [" + integerFormat +
+                "] - using default editor");
+
         //Use a default instance
         for(TalkgroupDetail detail: mTalkgroupDetails)
         {
@@ -289,31 +292,35 @@ public class TalkgroupRangeEditor extends IdentifierEditor<TalkgroupRange>
     {
         List<TalkgroupDetail> details = new ArrayList<>();
         details.add(new TalkgroupDetail(Protocol.APCO25, IntegerFormat.DECIMAL, new IntegerFormatter(0,65535),
-            new IntegerFormatter(0,65535), "Format: 0 - 65535"));
+                new IntegerFormatter(0,65535), "Format: 0 - 65535"));
         details.add(new TalkgroupDetail(Protocol.APCO25, IntegerFormat.HEXADECIMAL, new HexFormatter(0,65535),
-            new HexFormatter(0,65535), "Format: 0 - FFFF"));
+                new HexFormatter(0,65535), "Format: 0 - FFFF"));
         details.add(new TalkgroupDetail(Protocol.FLEETSYNC, IntegerFormat.FORMATTED,
-            new PrefixIdentFormatter(0,0xFFFFF), new PrefixIdentFormatter(0,0xFFFFF),
-            "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
+                new PrefixIdentFormatter(0,0xFFFFF), new PrefixIdentFormatter(0,0xFFFFF),
+                "Format: PPP-IIII = Prefix (0-127), Ident (0-8191)"));
         details.add(new TalkgroupDetail(Protocol.LTR, IntegerFormat.FORMATTED, new LtrFormatter(0,0x3FFF),
-            new LtrFormatter(0,0x3FFF), "Format: A-HH-TTT = Area (0-1), Home (1-31), Talkgroup (1-255)"));
+                new LtrFormatter(0,0x3FFF), "Format: A-HH-TTT = Area (0-1), Home (1-31), Talkgroup (1-255)"));
         details.add(new TalkgroupDetail(Protocol.MDC1200, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
-            new IntegerFormatter(0,0xFFFF), "Format: 0 - 65535"));
+                new IntegerFormatter(0,0xFFFF), "Format: 0 - 65535"));
         details.add(new TalkgroupDetail(Protocol.MDC1200, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),
-            new HexFormatter(0,0xFFFF), "Format: 0 - FFFF"));
+                new HexFormatter(0,0xFFFF), "Format: 0 - FFFF"));
         details.add(new TalkgroupDetail(Protocol.MPT1327, IntegerFormat.FORMATTED,
-            new PrefixIdentFormatter(0,0xFFFFF), new PrefixIdentFormatter(0,0xFFFFF),
-            "Format: PPP-IIII = Prefix (0-127), Ident (1-8191)"));
+                new PrefixIdentFormatter(0,0xFFFFF), new PrefixIdentFormatter(0,0xFFFFF),
+                "Format: PPP-IIII = Prefix (0-127), Ident (1-8191)"));
         details.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
-            new IntegerFormatter(0,0xFFFF), "Format: 0 - 65535"));
+                new IntegerFormatter(0,0xFFFF), "Format: 0 - 65535"));
         details.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),
-            new HexFormatter(0,0xFFFF), "Format: 0 - FFFF"));
+                new HexFormatter(0,0xFFFF), "Format: 0 - FFFF"));
         details.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.DECIMAL, new IntegerFormatter(0,16777215),
-            new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
+                new IntegerFormatter(0,16777215), "Format: 0 - 16777215"));
         details.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.FORMATTED, new IntegerFormatter(0,16777215),
-            new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
+                new IntegerFormatter(0,16777215), "Format: 0 - FFFFFF"));
         details.add(new TalkgroupDetail(Protocol.UNKNOWN, IntegerFormat.HEXADECIMAL, new HexFormatter(0,16777215),
-            new HexFormatter(0,16777215), "Format: 0 - FFFFFF"));
+                new HexFormatter(0,16777215), "Format: 0 - FFFFFF"));
+        details.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.DECIMAL, new IntegerFormatter(1,16777215),
+                new IntegerFormatter(1,16777215), "Format: 1 - 16777215"));
+        details.add(new TalkgroupDetail(Protocol.DMR, IntegerFormat.HEXADECIMAL, new HexFormatter(1,0XFFFFFF),
+                new HexFormatter(1, 0xFFFFFF), "Format: 0 - FFFFFF"));
 
         return details;
     }

src/main/java/io/github/dsheirer/gui/playlist/channel/DMRConfigurationEditor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -38,6 +38,8 @@ import io.github.dsheirer.record.RecorderType;
 import io.github.dsheirer.record.config.RecordConfiguration;
 import io.github.dsheirer.source.config.SourceConfiguration;
 import io.github.dsheirer.source.tuner.manager.TunerManager;
+import java.util.ArrayList;
+import java.util.List;
 import javafx.beans.property.SimpleStringProperty;
 import javafx.beans.property.StringProperty;
 import javafx.beans.value.ChangeListener;
@@ -65,9 +67,6 @@ import org.controlsfx.control.ToggleSwitch;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
-import java.util.List;
-
 /**
  * DMR channel configuration editor
  */
@@ -83,6 +82,7 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
     private RecordConfigurationEditor mRecordConfigurationEditor;
     private ToggleSwitch mIgnoreDataCallsButton;
     private ToggleSwitch mIgnoreCRCChecksumsButton;
+    private ToggleSwitch mUseCompressedTalkgroupsToggle;
     private Spinner<Integer> mTrafficChannelPoolSizeSpinner;
     private TableView<TimeslotFrequency> mTimeslotFrequencyTable;
     private IntegerTextField mLogicalSlotNumberField;
@@ -164,6 +164,14 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
             GridPane.setConstraints(ignoreCRCLabel, 5, row);
             gridPane.getChildren().add(ignoreCRCLabel);
 
+            GridPane.setConstraints(getUseCompressedTalkgroupsToggle(), 6, row);
+            gridPane.getChildren().add(getUseCompressedTalkgroupsToggle());
+
+            Label useCompressedTalkgroupsLabel = new Label("Use Compressed Talkgroups");
+            GridPane.setHalignment(useCompressedTalkgroupsLabel, HPos.LEFT);
+            GridPane.setConstraints(useCompressedTalkgroupsLabel, 7, row);
+            gridPane.getChildren().add(useCompressedTalkgroupsLabel);
+
             Label timeslotTableLabel = new Label("Logical Slot Number (LSN) to Frequency Map. Required for: Connect Plus and Tier-III systems that don't use absolute frequencies");
             GridPane.setHalignment(timeslotTableLabel, HPos.LEFT);
             GridPane.setConstraints(timeslotTableLabel, 0, ++row, 6, 1);
@@ -512,6 +520,24 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
         return mIgnoreCRCChecksumsButton;
     }
 
+    /**
+     * Use compressed talkgroups toggle switch.  Let's the user select to turn on compressed talkgroups for Hytera
+     * Tier-III systems.
+     * @return toggle.
+     */
+    private ToggleSwitch getUseCompressedTalkgroupsToggle()
+    {
+        if(mUseCompressedTalkgroupsToggle == null)
+        {
+            mUseCompressedTalkgroupsToggle = new ToggleSwitch();
+            mUseCompressedTalkgroupsToggle.setTooltip(new Tooltip("Use Compressed Talkgroups.  This is only for Hytera Tier-III Trunked Systems"));
+            mUseCompressedTalkgroupsToggle.setDisable(true);
+            mUseCompressedTalkgroupsToggle.selectedProperty().addListener((observable, oldValue, newValue) -> modifiedProperty().set(true));
+        }
+
+        return mUseCompressedTalkgroupsToggle;
+    }
+
     private Spinner<Integer> getTrafficChannelPoolSizeSpinner()
     {
         if(mTrafficChannelPoolSizeSpinner == null)
@@ -578,6 +604,7 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
     {
         getIgnoreCRCChecksumsButton().setDisable(config == null);
         getIgnoreDataCallsButton().setDisable(config == null);
+        getUseCompressedTalkgroupsToggle().setDisable(config == null);
         getTrafficChannelPoolSizeSpinner().setDisable(config == null);
         getTimeslotTable().getItems().clear();
         getTimeslotTable().setDisable(config == null);
@@ -597,6 +624,7 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
 
             getIgnoreDataCallsButton().setSelected(decodeConfig.getIgnoreDataCalls());
             getIgnoreCRCChecksumsButton().setSelected(decodeConfig.getIgnoreCRCChecksums());
+            getUseCompressedTalkgroupsToggle().setSelected(decodeConfig.isUseCompressedTalkgroups());
             getTrafficChannelPoolSizeSpinner().getValueFactory().setValue(decodeConfig.getTrafficChannelPoolSize());
 
             for(TimeslotFrequency timeslotFrequency: decodeConfig.getTimeslotMap())
@@ -608,6 +636,7 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
         {
             getIgnoreCRCChecksumsButton().setSelected(false);
             getIgnoreDataCallsButton().setSelected(false);
+            getUseCompressedTalkgroupsToggle().setSelected(false);
             getTrafficChannelPoolSizeSpinner().getValueFactory().setValue(0);
             getChannelRotationDelaySpinner().getValueFactory().setValue(200);
         }
@@ -630,6 +659,7 @@ public class DMRConfigurationEditor extends ChannelConfigurationEditor
         config.setIgnoreCRCChecksums(getIgnoreCRCChecksumsButton().isSelected());
         config.setIgnoreDataCalls(getIgnoreDataCallsButton().isSelected());
         config.setTrafficChannelPoolSize(getTrafficChannelPoolSizeSpinner().getValue());
+        config.setUseCompressedTalkgroups(getUseCompressedTalkgroupsToggle().isSelected());
         config.setTimeslotMap(new ArrayList<>(getTimeslotTable().getItems()));
         getItem().setDecodeConfiguration(config);
     }

src/main/java/io/github/dsheirer/gui/playlist/radioreference/SystemEditor.java

@@ -34,6 +34,11 @@ import io.github.dsheirer.rrapi.type.Type;
 import io.github.dsheirer.rrapi.type.Voice;
 import io.github.dsheirer.service.radioreference.RadioReference;
 import io.github.dsheirer.util.ThreadPool;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Map;
 import javafx.application.Platform;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.IntegerProperty;
@@ -55,12 +60,6 @@ import jiconfont.javafx.IconNode;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-import java.util.Map;
-
 /**
  * Radio Reference editor for trunked radio systems
  */
@@ -293,7 +292,13 @@ public class SystemEditor extends VBox
                     List<EnrichedSite> enrichedSites = new ArrayList<>();
                     for(Site site: sites)
                     {
-                        CountyInfo countyInfo = mRadioReference.getService().getCountyInfo(site.getCountyId());
+                        CountyInfo countyInfo = null;
+
+                        if(site.getCountyId() > 0)
+                        {
+                            countyInfo = mRadioReference.getService().getCountyInfo(site.getCountyId());
+                        }
+
                         enrichedSites.add(new EnrichedSite(site, countyInfo));
                     }
 

src/main/java/io/github/dsheirer/gui/power/ChannelPowerPanel.java

@@ -1,12 +1,52 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
 package io.github.dsheirer.gui.power;
 
 import io.github.dsheirer.controller.channel.Channel;
+import io.github.dsheirer.dsp.filter.channelizer.PolyphaseChannelSource;
 import io.github.dsheirer.dsp.squelch.ISquelchConfiguration;
 import io.github.dsheirer.gui.control.DbPowerMeter;
 import io.github.dsheirer.module.ProcessingChain;
 import io.github.dsheirer.playlist.PlaylistManager;
 import io.github.dsheirer.sample.Listener;
+import io.github.dsheirer.sample.complex.ComplexSamplesToNativeBufferModule;
+import io.github.dsheirer.settings.SettingsManager;
+import io.github.dsheirer.source.Source;
 import io.github.dsheirer.source.SourceEvent;
+import io.github.dsheirer.source.tuner.channel.HalfBandTunerChannelSource;
+import io.github.dsheirer.source.tuner.channel.TunerChannel;
+import io.github.dsheirer.source.tuner.channel.TunerChannelSource;
+import io.github.dsheirer.spectrum.ComplexDftProcessor;
+import io.github.dsheirer.spectrum.FrequencyOverlayPanel;
+import io.github.dsheirer.spectrum.SpectrumPanel;
+import io.github.dsheirer.spectrum.converter.ComplexDecibelConverter;
+import io.github.dsheirer.spectrum.converter.DFTResultsConverter;
+import java.awt.Component;
+import java.awt.EventQueue;
+import java.awt.event.ComponentEvent;
+import java.awt.event.ComponentListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseWheelEvent;
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+import java.util.List;
 import jiconfont.icons.font_awesome.FontAwesome;
 import jiconfont.swing.IconFontSwing;
 import net.miginfocom.swing.MigLayout;
@@ -16,9 +56,12 @@ import org.slf4j.LoggerFactory;
 import javax.swing.Icon;
 import javax.swing.JButton;
 import javax.swing.JLabel;
+import javax.swing.JLayeredPane;
 import javax.swing.JPanel;
-import java.awt.EventQueue;
-import java.text.DecimalFormat;
+import javax.swing.JSeparator;
+import javax.swing.JSpinner;
+import javax.swing.SpinnerNumberModel;
+import javax.swing.event.MouseInputAdapter;
 
 /**
  * Display for channel power and squelch details
@@ -27,28 +70,42 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
 {
     private static final Logger mLog = LoggerFactory.getLogger(ChannelPowerPanel.class);
     private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("0.0");
+    private static final DecimalFormat FREQUENCY_FORMAT = new DecimalFormat("0.00000");
     private static final String NOT_AVAILABLE = "Not Available";
     private PlaylistManager mPlaylistManager;
     private ProcessingChain mProcessingChain;
+    private ComplexSamplesToNativeBufferModule mSampleStreamTapModule = new ComplexSamplesToNativeBufferModule();
+    private ComplexDftProcessor mComplexDftProcessor = new ComplexDftProcessor();
+    private DFTResultsConverter mDFTResultsConverter = new ComplexDecibelConverter();
+    private JLayeredPane mLayeredPanel;
+    private SpectrumPanel mSpectrumPanel;
+    private FrequencyOverlayPanel mFrequencyOverlayPanel;
     private DbPowerMeter mPowerMeter = new DbPowerMeter();
     private PeakMonitor mPeakMonitor = new PeakMonitor(DbPowerMeter.DEFAULT_MINIMUM_POWER);
     private SourceEventProcessor mSourceEventProcessor = new SourceEventProcessor();
+    private SpinnerNumberModel mNoiseFloorSpinnerModel;
+    private JSpinner mNoiseFloorSpinner;
     private JLabel mPowerLabel;
     private JLabel mPeakLabel;
     private JLabel mSquelchLabel;
     private JLabel mSquelchValueLabel;
+    private JLabel mPllFrequencyLabel;
+    private JLabel mPllFrequencyValueLabel;
     private JButton mSquelchUpButton;
     private JButton mSquelchDownButton;
+    private JButton mLogIndexesButton;
     private double mSquelchThreshold;
+    private boolean mPanelVisible = false;
+    private boolean mDftProcessing = false;
 
     /**
      * Constructs an instance.
      */
-    public ChannelPowerPanel(PlaylistManager playlistManager)
+    public ChannelPowerPanel(PlaylistManager playlistManager, SettingsManager settingsManager)
     {
         mPlaylistManager = playlistManager;
 
-        setLayout(new MigLayout("", "[][grow,fill]", "[grow,fill]"));
+        setLayout(new MigLayout("", "[][][][grow,fill]", "[grow,fill]"));
         mPowerMeter.setPeakVisible(true);
         mPowerMeter.setSquelchThresholdVisible(true);
         add(mPowerMeter);
@@ -85,6 +142,184 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
         valuePanel.add(mSquelchDownButton);
 
         add(valuePanel);
+        add(new JSeparator(JSeparator.VERTICAL));
+
+        JPanel fftPanel = new JPanel();
+        fftPanel.setLayout(new MigLayout("insets 0", "[grow,fill]", "[][grow,fill]"));
+
+        JPanel labelPanel = new JPanel();
+        labelPanel.setLayout(new MigLayout("insets 0", "[grow,fill][right][grow,fill][right][grow,fill][]", ""));
+        labelPanel.add(new JLabel("Channel Spectrum"));
+
+        mPllFrequencyLabel = new JLabel("PLL:");
+        mPllFrequencyLabel.setEnabled(false);
+        labelPanel.add(mPllFrequencyLabel);
+        mPllFrequencyValueLabel = new JLabel("0 Hz");
+        mPllFrequencyValueLabel.setEnabled(false);
+        labelPanel.add(mPllFrequencyValueLabel);
+
+        mNoiseFloorSpinnerModel = new SpinnerNumberModel(18, 8, 36, 1);
+        mNoiseFloorSpinnerModel.addChangeListener(e -> {
+            Number number = mNoiseFloorSpinnerModel.getNumber();
+            mSpectrumPanel.setSampleSize(number.doubleValue());
+        });
+        mNoiseFloorSpinner = new JSpinner(mNoiseFloorSpinnerModel);
+        labelPanel.add(mNoiseFloorSpinner);
+        labelPanel.add(new JLabel("Noise Floor"));
+
+        mLogIndexesButton = new JButton("Log Settings");
+        mLogIndexesButton.addActionListener(e -> {
+            if(mProcessingChain != null)
+            {
+                Source source = mProcessingChain.getSource();
+
+                if(source instanceof PolyphaseChannelSource pcs)
+                {
+                    List<Integer> indexes = pcs.getOutputProcessorIndexes();
+                    double sampleRate = pcs.getSampleRate();
+                    long indexCenterFrequency = pcs.getIndexCenterFrequency();
+                    long appliedFrequencyOffset = pcs.getFrequencyOffset();
+                    long requestedCenterFrequency = pcs.getFrequency();
+
+                    StringBuilder sb = new StringBuilder();
+                    sb.append("Polyphase Channel - BW: ").append(FREQUENCY_FORMAT.format(sampleRate / 1E6d));
+                    sb.append(" Center/Requested/Mixer: ").append(FREQUENCY_FORMAT.format(indexCenterFrequency / 1E6d));
+                    sb.append("/").append(FREQUENCY_FORMAT.format(requestedCenterFrequency / 1E6d));
+                    sb.append("/").append(FREQUENCY_FORMAT.format(appliedFrequencyOffset / 1E6d));
+                    sb.append(" Polyphase Indexes: ").append(indexes);
+                    sb.append(" Tuner SR:").append(FREQUENCY_FORMAT.format(pcs.getTunerSampleRate() / 1E6d));
+                    sb.append(" CF:").append(FREQUENCY_FORMAT.format(pcs.getTunerCenterFrequency() / 1E6d));
+                    mLog.info(sb.toString());
+                    mLog.info("Output Processor: " + pcs.getStateDescription());
+                }
+                else if(source instanceof HalfBandTunerChannelSource<?> hbtcs)
+                {
+                    StringBuilder sb = new StringBuilder();
+                    sb.append("Heterodyne Channel - CF:").append(FREQUENCY_FORMAT.format(hbtcs.getFrequency() / 1E6d));
+                    sb.append(" SR:").append(FREQUENCY_FORMAT.format(hbtcs.getSampleRate() / 1E6d));
+                    sb.append(" Mixer:").append(FREQUENCY_FORMAT.format(hbtcs.getMixerFrequency() / 1E6d));
+                    mLog.info(sb.toString());
+                }
+                else
+                {
+                    mLog.info("Unsupported channel type: " + (source != null ? source.getClass() : " null"));
+                }
+            }
+        });
+        labelPanel.add(mLogIndexesButton);
+
+        fftPanel.add(labelPanel, "wrap");
+
+        mFrequencyOverlayPanel = new FrequencyOverlayPanel(settingsManager);
+
+        mSpectrumPanel = new SpectrumPanel(settingsManager);
+        mSpectrumPanel.setSampleSize(18.0);
+
+        /**
+         * The layered pane holds the overlapping spectrum and channel panels
+         * and manages the sizing of each panel with the resize listener
+         */
+        mLayeredPanel = new JLayeredPane();
+        mLayeredPanel.addComponentListener(new ResizeListener());
+
+        /**
+         * Create a mouse adapter to handle mouse events over the spectrum
+         * and waterfall panels
+         */
+        MouseEventProcessor mouser = new MouseEventProcessor();
+
+        mFrequencyOverlayPanel.addMouseListener(mouser);
+        mFrequencyOverlayPanel.addMouseMotionListener(mouser);
+        mFrequencyOverlayPanel.addMouseWheelListener(mouser);
+
+        //Add the spectrum and channel panels to the layered panel
+        mLayeredPanel.add(mSpectrumPanel, 0, 0);
+        mLayeredPanel.add(mFrequencyOverlayPanel, 1, 0);
+
+        fftPanel.add(mLayeredPanel);
+        add(fftPanel);
+
+        mSampleStreamTapModule.setListener(mComplexDftProcessor);
+        mComplexDftProcessor.addConverter(mDFTResultsConverter);
+        mDFTResultsConverter.addListener(mSpectrumPanel);
+        mSpectrumPanel.clearSpectrum();
+    }
+
+    /**
+     * Signals this panel to indicate if this panel is visible to turn on the FFT processor when the panel is visible
+     * and turn off the FFT processor when it's not.
+     *
+     * Note: this method is intended to be called by the Swing event thread to ensure that only a single thread is
+     * invoking either this method, or the receive() method, since there is no thread synchronization between these
+     * two methods and they each depend on stable access to the mPanelVisible variable.
+     *
+     * @param visible true to indicate that this panel is showing/visible.
+     */
+    public void setPanelVisible(boolean visible)
+    {
+        mPanelVisible = visible;
+        updateFFTProcessing();
+    }
+
+    /**
+     * Updates processing state for the DFT processor.  Turns on DFT processing when we have a processing chain and
+     * when the user has this tab selected and visible.  Otherwise, turns off DFT processing.
+     */
+    private void updateFFTProcessing()
+    {
+        if(mPanelVisible && mProcessingChain != null)
+        {
+            startDftProcessing();
+        }
+        else
+        {
+            stopDftProcessing();
+        }
+    }
+
+    /**
+     * Starts DFT processing
+     */
+    private void startDftProcessing()
+    {
+        if(!mDftProcessing)
+        {
+            mDftProcessing = true;
+            mSampleStreamTapModule.setListener(mComplexDftProcessor);
+            mComplexDftProcessor.start();
+        }
+    }
+
+    /**
+     * Stops DFT processing
+     */
+    private void stopDftProcessing()
+    {
+        if(mDftProcessing)
+        {
+            mSampleStreamTapModule.removeListener();
+            mComplexDftProcessor.stop();
+            mSpectrumPanel.clearSpectrum();
+            mDftProcessing = false;
+        }
+    }
+
+    /**
+     * Updates the decoder's PLL frequency on the swing dispatch thread
+     * @param trackingFrequency that is currently measured.
+     */
+    private void updatePllFrequency(long trackingFrequency)
+    {
+        //Note: we flip the sign on the error measurement because the value represents the amount of offset the PLL
+        //has to apply to move the signal to center/baseband
+        EventQueue.invokeLater(() -> {
+            String formattedValue = NumberFormat.getInstance().format(-trackingFrequency);
+            mPllFrequencyValueLabel.setText(formattedValue + " Hz");
+            mPllFrequencyValueLabel.setEnabled(true);
+            mPllFrequencyLabel.setEnabled(true);
+        });
+
+        mFrequencyOverlayPanel.setPllTrackingFrequency(trackingFrequency);
     }
 
     /**
@@ -124,6 +359,13 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
 
         mPeakLabel.setText("0");
         mPowerLabel.setText("0");
+        mPllFrequencyLabel.setEnabled(false);
+        mPllFrequencyValueLabel.setText("0 Hz");
+        mPllFrequencyValueLabel.setEnabled(false);
+        mFrequencyOverlayPanel.process(SourceEvent.frequencyChange(null, 0));
+        mFrequencyOverlayPanel.process(SourceEvent.sampleRateChange(0));
+        mFrequencyOverlayPanel.setPllTrackingFrequency(0);
+        mFrequencyOverlayPanel.setChannelBandwidth(0);
 
         mSquelchLabel.setEnabled(false);
         mSquelchValueLabel.setText("Not Available");
@@ -138,9 +380,11 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
     @Override
     public void receive(ProcessingChain processingChain)
     {
+        //Disconnect the FFT panel
         if(mProcessingChain != null)
         {
             mProcessingChain.removeSourceEventListener(mSourceEventProcessor);
+            mProcessingChain.removeModule(mSampleStreamTapModule);
         }
 
         //Invoking reset - we're on the Swing dispatch thread here
@@ -151,11 +395,35 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
         if(mProcessingChain != null)
         {
             mProcessingChain.addSourceEventListener(mSourceEventProcessor);
+            mProcessingChain.addModule(mSampleStreamTapModule);
+
+            Source source = mProcessingChain.getSource();
+
+            if(source instanceof TunerChannelSource tcs)
+            {
+                mFrequencyOverlayPanel.process(SourceEvent.frequencyChange(null, tcs.getFrequency()));
+                mFrequencyOverlayPanel.process(SourceEvent.sampleRateChange(tcs.getSampleRate()));
+            }
+
+            Channel channel = mPlaylistManager.getChannelProcessingManager().getChannel(mProcessingChain);
+
+            if(channel != null)
+            {
+                TunerChannel tunerChannel = channel.getTunerChannel();
+
+                if(tunerChannel != null)
+                {
+                    mFrequencyOverlayPanel.setChannelBandwidth(tunerChannel.getBandwidth());
+                }
+            }
         }
 
+        updateFFTProcessing();
+
         broadcast(SourceEvent.requestCurrentSquelchThreshold(null));
     }
 
+
     /**
      * Processor for source event stream to capture power level and squelch related source events.
      */
@@ -171,17 +439,12 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
                         final double power = sourceEvent.getValue().doubleValue();
                         final double peak = mPeakMonitor.process(power);
 
-                        EventQueue.invokeLater(new Runnable()
-                        {
-                            @Override
-                            public void run()
-                            {
-                                mPowerMeter.setPower(power);
-                                mPowerLabel.setText(DECIMAL_FORMAT.format(power));
+                        EventQueue.invokeLater(() -> {
+                            mPowerMeter.setPower(power);
+                            mPowerLabel.setText(DECIMAL_FORMAT.format(power));
 
-                                mPowerMeter.setPeak(peak);
-                                mPeakLabel.setText(DECIMAL_FORMAT.format(peak));
-                            }
+                            mPowerMeter.setPeak(peak);
+                            mPeakLabel.setText(DECIMAL_FORMAT.format(peak));
                         });
 
                     }
@@ -205,7 +468,70 @@ public class ChannelPowerPanel extends JPanel implements Listener<ProcessingChai
                                 }
                             });
                         }
+                case NOTIFICATION_PLL_FREQUENCY ->
+                {
+                    if(sourceEvent.hasValue())
+                    {
+                        updatePllFrequency(sourceEvent.getValue().longValue());
+                    }
+                }
             }
         }
     }
+
+    /**
+     * Monitors the sizing of the layered pane and resizes the spectrum and
+     * channel panels whenever the layered pane is resized
+     */
+    public class ResizeListener implements ComponentListener
+    {
+        @Override public void componentResized(ComponentEvent e)
+        {
+            Component c = e.getComponent();
+
+            mSpectrumPanel.setBounds(0, 0, c.getWidth(), c.getHeight());
+            mFrequencyOverlayPanel.setBounds(0, 0, c.getWidth(), c.getHeight());
+        }
+
+        @Override public void componentHidden(ComponentEvent arg0) {}
+        @Override public void componentMoved(ComponentEvent arg0) {}
+        @Override public void componentShown(ComponentEvent arg0) {}
+    }
+
+    /**
+     * Mouse event handler for the spectral display panel.
+     */
+    public class MouseEventProcessor extends MouseInputAdapter
+    {
+        public MouseEventProcessor()
+        {
+        }
+
+        @Override public void mouseWheelMoved(MouseWheelEvent e) {}
+        @Override public void mouseMoved(MouseEvent event)
+        {
+            update(event);
+        }
+        @Override public void mouseDragged(MouseEvent event) {}
+        @Override public void mousePressed(MouseEvent e) {}
+        @Override public void mouseClicked(MouseEvent event) {}
+
+        /**
+         * Updates the cursor display while the mouse is performing actions
+         */
+        private void update(MouseEvent event)
+        {
+            mFrequencyOverlayPanel.setCursorLocation(event.getPoint());
+        }
+
+        @Override public void mouseEntered(MouseEvent e)
+        {
+            mFrequencyOverlayPanel.setCursorVisible(true);
+        }
+
+        @Override public void mouseExited(MouseEvent e)
+        {
+            mFrequencyOverlayPanel.setCursorVisible(false);
+        }
+    }
 }

src/main/java/io/github/dsheirer/gui/preference/PreferenceEditorFactory.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 
 package io.github.dsheirer.gui.preference;
 
+import io.github.dsheirer.gui.preference.application.ApplicationPreferenceEditor;
 import io.github.dsheirer.gui.preference.calibration.VectorCalibrationPreferenceEditor;
 import io.github.dsheirer.gui.preference.decoder.JmbeLibraryPreferenceEditor;
 import io.github.dsheirer.gui.preference.directory.DirectoryPreferenceEditor;
@@ -39,6 +40,8 @@ public class PreferenceEditorFactory
     {
         switch(preferenceEditorType)
         {
+            case APPLICATION:
+                return new ApplicationPreferenceEditor(userPreferences);
             case AUDIO_DUPLICATE_CALL_DETECTION:
                 return new DuplicateCallPreferenceEditor(userPreferences);
             case AUDIO_MP3:
@@ -53,7 +56,7 @@ public class PreferenceEditorFactory
                 return new DirectoryPreferenceEditor(userPreferences);
             case JMBE_LIBRARY:
                 return new JmbeLibraryPreferenceEditor(userPreferences);
-            case SOURCE_TUNER_CHANNELIZER:
+            case SOURCE_TUNERS:
                 return new TunerPreferenceEditor(userPreferences);
             case TALKGROUP_FORMAT:
                 return new TalkgroupFormatPreferenceEditor(userPreferences);

src/main/java/io/github/dsheirer/gui/preference/PreferenceEditorType.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,6 +24,7 @@ package io.github.dsheirer.gui.preference;
  */
 public enum PreferenceEditorType
 {
+    APPLICATION("Application"),
     CHANNEL_EVENT("Channel Events"),
     DIRECTORY("Directories"),
     JMBE_LIBRARY("JMBE Audio Library"),
@@ -31,7 +32,7 @@ public enum PreferenceEditorType
     AUDIO_RECORD("Record"),
     AUDIO_OUTPUT("Output/Tones"),
     AUDIO_DUPLICATE_CALL_DETECTION("Duplicate Calls"),
-    SOURCE_TUNER_CHANNELIZER("Tuner Channelizer"),
+    SOURCE_TUNERS("Tuners"),
     TALKGROUP_FORMAT("Talkgroup & Radio ID"),
     VECTOR_CALIBRATION("Vector Calibration"),
     DEFAULT("Default");

src/main/java/io/github/dsheirer/gui/preference/UserPreferencesEditor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,6 +22,8 @@ package io.github.dsheirer.gui.preference;
 import io.github.dsheirer.eventbus.MyEventBus;
 import io.github.dsheirer.gui.playlist.ViewPlaylistRequest;
 import io.github.dsheirer.preference.UserPreferences;
+import java.util.EnumMap;
+import java.util.Map;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.geometry.Insets;
@@ -44,9 +46,6 @@ import javafx.stage.Stage;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.EnumMap;
-import java.util.Map;
-
 /**
  * Preferences editor dialog
  */
@@ -166,6 +165,11 @@ public class UserPreferencesEditor extends BorderPane
         {
             TreeItem<String> treeRoot = new TreeItem<>("Root node");
 
+            TreeItem<String> applicationItem = new TreeItem<>("Application");
+            applicationItem.getChildren().add(new TreeItem(PreferenceEditorType.APPLICATION));
+            treeRoot.getChildren().add(applicationItem);
+            applicationItem.setExpanded(true);
+
             TreeItem<String> audioItem = new TreeItem<>("Audio");
             audioItem.getChildren().add(new TreeItem(PreferenceEditorType.AUDIO_DUPLICATE_CALL_DETECTION));
             audioItem.getChildren().add(new TreeItem(PreferenceEditorType.AUDIO_MP3));
@@ -196,7 +200,7 @@ public class UserPreferencesEditor extends BorderPane
             storageItem.setExpanded(true);
 
             TreeItem<String> sourceItem = new TreeItem<>("Source");
-            sourceItem.getChildren().add(new TreeItem(PreferenceEditorType.SOURCE_TUNER_CHANNELIZER));
+            sourceItem.getChildren().add(new TreeItem(PreferenceEditorType.SOURCE_TUNERS));
             treeRoot.getChildren().add(sourceItem);
             sourceItem.setExpanded(true);
 

src/main/java/io/github/dsheirer/gui/preference/application/ApplicationPreferenceEditor.java

@@ -0,0 +1,94 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.gui.preference.application;
+
+import io.github.dsheirer.preference.UserPreferences;
+import io.github.dsheirer.preference.application.ApplicationPreference;
+import javafx.geometry.HPos;
+import javafx.geometry.Insets;
+import javafx.scene.control.Label;
+import javafx.scene.control.Spinner;
+import javafx.scene.layout.GridPane;
+import javafx.scene.layout.HBox;
+
+
+/**
+ * Preference settings for application
+ */
+public class ApplicationPreferenceEditor extends HBox
+{
+    private ApplicationPreference mApplicationPreference;
+    private GridPane mEditorPane;
+    private Label mAutoStartTimeoutLabel;
+    private Spinner<Integer> mTimeoutSpinner;
+
+    /**
+     * Constructs an instance
+     * @param userPreferences for obtaining reference to preference.
+     */
+    public ApplicationPreferenceEditor(UserPreferences userPreferences)
+    {
+        mApplicationPreference = userPreferences.getApplicationPreference();
+        getChildren().add(getEditorPane());
+    }
+
+    private GridPane getEditorPane()
+    {
+        if(mEditorPane == null)
+        {
+            int row = 0;
+            mEditorPane = new GridPane();
+            mEditorPane.setVgap(10);
+            mEditorPane.setHgap(10);
+            mEditorPane.setPadding(new Insets(10, 10, 10, 10));
+            GridPane.setHalignment(getAutoStartTimeoutLabel(), HPos.RIGHT);
+            mEditorPane.add(getAutoStartTimeoutLabel(), 0, row);
+            mEditorPane.add(getTimeoutSpinner(), 1, row);
+            mEditorPane.add(new Label("seconds"), 2, row);
+        }
+
+        return mEditorPane;
+    }
+
+    private Label getAutoStartTimeoutLabel()
+    {
+        if(mAutoStartTimeoutLabel == null)
+        {
+            mAutoStartTimeoutLabel = new Label("Channel Auto-Start Timeout");
+        }
+
+        return mAutoStartTimeoutLabel;
+    }
+
+    /**
+     * Spinner to select channel auto-start timeout value in range 0-30 seconds.
+     * @return spinner
+     */
+    private Spinner<Integer> getTimeoutSpinner()
+    {
+        if(mTimeoutSpinner == null)
+        {
+            mTimeoutSpinner = new Spinner<>(0, 30, mApplicationPreference.getChannelAutoStartTimeout(), 1);
+            mTimeoutSpinner.valueProperty().addListener((observable, oldValue, newValue) -> mApplicationPreference.setChannelAutoStartTimeout(newValue));
+        }
+
+        return mTimeoutSpinner;
+    }
+}

src/main/java/io/github/dsheirer/gui/preference/mp3/MP3PreferenceEditor.java

@@ -25,6 +25,7 @@ import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.preference.mp3.MP3Preference;
 import javafx.geometry.HPos;
 import javafx.geometry.Insets;
+import javafx.scene.control.Alert;
 import javafx.scene.control.CheckBox;
 import javafx.scene.control.ComboBox;
 import javafx.scene.control.Label;
@@ -99,12 +100,47 @@ public class MP3PreferenceEditor extends HBox
             mMP3SettingComboBox.getItems().addAll(MP3Setting.values());
             mMP3SettingComboBox.getSelectionModel().select(mMP3Preference.getMP3Setting());
             mMP3SettingComboBox.getSelectionModel().selectedItemProperty()
-                    .addListener((observable, oldValue, newValue) -> mMP3Preference.setMP3Setting(newValue));
+                    .addListener((observable, oldValue, newValue) -> {
+                        mMP3Preference.setMP3Setting(newValue);
+                        updateAudioSampleRateComboBox();
+                    });
         }
 
         return mMP3SettingComboBox;
     }
 
+    /**
+     * Updates the input sample rate combo box values and alerts the user whenever we auto-change an input sample rate
+     * due to a change in the MP3 setting value.
+     */
+    private void updateAudioSampleRateComboBox()
+    {
+        InputAudioFormat currentSelection = getAudioSampleRateComboBox().getSelectionModel().getSelectedItem();
+        MP3Setting setting = getMP3SettingComboBox().getSelectionModel().getSelectedItem();
+
+        getAudioSampleRateComboBox().getItems().clear();
+        getAudioSampleRateComboBox().getItems().addAll(setting.getSupportedSampleRates());
+
+        if(currentSelection != null && getAudioSampleRateComboBox().getItems().contains(currentSelection))
+        {
+            getAudioSampleRateComboBox().getSelectionModel().select(currentSelection);
+        }
+        else
+        {
+            getAudioSampleRateComboBox().getSelectionModel().select(InputAudioFormat.getDefault());
+
+            Alert alert = new Alert(Alert.AlertType.INFORMATION);
+            alert.setTitle("Sample Rate Updated");
+            alert.setHeaderText("Input Sample Rate Updated");
+
+            Label wrappingLabel = new Label("Previous input sample rate [" + currentSelection +
+                    "] is not supported with encoder setting [" + setting + "].  Sample rate updated to default.");
+            wrappingLabel.setWrapText(true);
+            alert.getDialogPane().setContent(wrappingLabel);
+            alert.show();
+        }
+    }
+
     private ComboBox<InputAudioFormat> getAudioSampleRateComboBox()
     {
         if(mAudioSampleRateComboBox == null)
@@ -113,7 +149,12 @@ public class MP3PreferenceEditor extends HBox
             mAudioSampleRateComboBox.getItems().addAll(InputAudioFormat.values());
             mAudioSampleRateComboBox.getSelectionModel().select(mMP3Preference.getAudioSampleRate());
             mAudioSampleRateComboBox.getSelectionModel().selectedItemProperty()
-                    .addListener((observable, oldValue, newValue) -> mMP3Preference.setAudioSampleRate(newValue));
+                    .addListener((observable, oldValue, newValue) -> {
+                        if(newValue != null)
+                        {
+                            mMP3Preference.setAudioSampleRate(newValue);
+                        }
+                    });
         }
 
         return mAudioSampleRateComboBox;

src/main/java/io/github/dsheirer/gui/preference/playback/PlaybackPreferenceEditor.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,10 +24,9 @@ import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.preference.playback.PlaybackPreference;
 import io.github.dsheirer.source.mixer.MixerChannelConfiguration;
 import io.github.dsheirer.source.mixer.MixerManager;
-import javafx.beans.value.ChangeListener;
-import javafx.beans.value.ObservableValue;
-import javafx.event.ActionEvent;
-import javafx.event.EventHandler;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.ShortBuffer;
 import javafx.geometry.HPos;
 import javafx.geometry.Insets;
 import javafx.geometry.Orientation;
@@ -49,9 +48,6 @@ import org.slf4j.LoggerFactory;
 import javax.sound.sampled.AudioSystem;
 import javax.sound.sampled.Clip;
 import javax.sound.sampled.DataLine;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.ShortBuffer;
 
 
 /**
@@ -60,20 +56,16 @@ import java.nio.ShortBuffer;
 public class PlaybackPreferenceEditor extends HBox
 {
     private final static Logger mLog = LoggerFactory.getLogger(PlaybackPreferenceEditor.class);
-    private PlaybackPreference mPlaybackPreference;
+    private final PlaybackPreference mPlaybackPreference;
     private GridPane mEditorPane;
     private ComboBox<MixerChannelConfiguration> mMixerComboBox;
     private Button mMixerTestButton;
     private ToggleSwitch mUseAudioSegmentStartToneSwitch;
     private Button mTestStartToneButton;
-    private ToggleSwitch mUseAudioSegmentPreemptToneSwitch;
-    private Button mTestPreemptToneButton;
     private ToggleSwitch mUseAudioSegmentDropToneSwitch;
     private Button mTestDropToneButton;
     private ComboBox<ToneFrequency> mStartToneFrequencyComboBox;
     private ComboBox<ToneVolume> mStartToneVolumeComboBox;
-    private ComboBox<ToneFrequency> mPreemptToneFrequencyComboBox;
-    private ComboBox<ToneVolume> mPreemptToneVolumeComboBox;
     private ComboBox<ToneFrequency> mDropToneFrequencyComboBox;
     private ComboBox<ToneVolume> mDropToneVolumeComboBox;
 
@@ -114,18 +106,6 @@ public class PlaybackPreferenceEditor extends HBox
             mEditorPane.add(getStartToneVolumeComboBox(), 4, row);
             mEditorPane.add(getTestStartToneButton(), 5, row);
 
-            mEditorPane.add(getUseAudioSegmentPreemptToneSwitch(), 0, ++row);
-            mEditorPane.add(new Label("Priority Preempt Tone"), 1, row, 3, 1);
-            Label preemptFrequencyLabel = new Label("Frequency:");
-            GridPane.setHalignment(preemptFrequencyLabel, HPos.RIGHT);
-            mEditorPane.add(preemptFrequencyLabel, 1, ++row);
-            mEditorPane.add(getPreemptToneFrequencyComboBox(), 2, row);
-            Label preemptVolumeLabel = new Label("Volume:");
-            GridPane.setHalignment(preemptVolumeLabel, HPos.RIGHT);
-            mEditorPane.add(preemptVolumeLabel, 3, row);
-            mEditorPane.add(getPreemptToneVolumeComboBox(), 4, row);
-            mEditorPane.add(getTestPreemptToneButton(), 5, row);
-
             mEditorPane.add(getUseAudioSegmentDropToneSwitch(), 0, ++row);
             mEditorPane.add(new Label("Drop Tone - Do Not Monitor"), 1, row, 3, 1);
             Label dropFrequencyLabel = new Label("Frequency:");
@@ -177,52 +157,21 @@ public class PlaybackPreferenceEditor extends HBox
             mUseAudioSegmentStartToneSwitch = new ToggleSwitch();
             mUseAudioSegmentStartToneSwitch.setAlignment(Pos.BASELINE_RIGHT);
             mUseAudioSegmentStartToneSwitch.setSelected(mPlaybackPreference.getUseAudioSegmentStartTone());
-            mUseAudioSegmentStartToneSwitch.selectedProperty().addListener(new ChangeListener<Boolean>()
-            {
-                @Override
-                public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue)
-                {
-                    mPlaybackPreference.setUseAudioSegmentStartTone(newValue);
-                }
-            });
+            mUseAudioSegmentStartToneSwitch.selectedProperty().addListener((observable, oldValue, newValue) ->
+                    mPlaybackPreference.setUseAudioSegmentStartTone(newValue));
         }
 
         return mUseAudioSegmentStartToneSwitch;
     }
 
-    private ToggleSwitch getUseAudioSegmentPreemptToneSwitch()
-    {
-        if(mUseAudioSegmentPreemptToneSwitch == null)
-        {
-            mUseAudioSegmentPreemptToneSwitch = new ToggleSwitch();
-            mUseAudioSegmentPreemptToneSwitch.setSelected(mPlaybackPreference.getUseAudioSegmentPreemptTone());
-            mUseAudioSegmentPreemptToneSwitch.selectedProperty().addListener(new ChangeListener<Boolean>()
-            {
-                @Override
-                public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue)
-                {
-                    mPlaybackPreference.setUseAudioSegmentPreemptTone(newValue);
-                }
-            });
-        }
-
-        return mUseAudioSegmentPreemptToneSwitch;
-    }
-
     private ToggleSwitch getUseAudioSegmentDropToneSwitch()
     {
         if(mUseAudioSegmentDropToneSwitch == null)
         {
             mUseAudioSegmentDropToneSwitch = new ToggleSwitch();
             mUseAudioSegmentDropToneSwitch.setSelected(mPlaybackPreference.getUseAudioSegmentDropTone());
-            mUseAudioSegmentDropToneSwitch.selectedProperty().addListener(new ChangeListener<Boolean>()
-            {
-                @Override
-                public void changed(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue)
-                {
-                    mPlaybackPreference.setUseAudioSegmentDropTone(newValue);
-                }
-            });
+            mUseAudioSegmentDropToneSwitch.selectedProperty().addListener((observable, oldValue, newValue) ->
+                    mPlaybackPreference.setUseAudioSegmentDropTone(newValue));
         }
 
         return mUseAudioSegmentDropToneSwitch;
@@ -236,14 +185,7 @@ public class PlaybackPreferenceEditor extends HBox
             IconNode iconNode = new IconNode(FontAwesome.PLAY);
             iconNode.setFill(Color.CORNFLOWERBLUE);
             mTestStartToneButton.setGraphic(iconNode);
-            mTestStartToneButton.setOnAction(new EventHandler<ActionEvent>()
-            {
-                @Override
-                public void handle(ActionEvent event)
-                {
-                    play(mPlaybackPreference.getStartTone());
-                }
-            });
+            mTestStartToneButton.setOnAction(event -> play(mPlaybackPreference.getStartTone()));
 
             mTestStartToneButton.disableProperty().bind(getUseAudioSegmentStartToneSwitch().selectedProperty().not());
         }
@@ -251,29 +193,6 @@ public class PlaybackPreferenceEditor extends HBox
         return mTestStartToneButton;
     }
 
-    public Button getTestPreemptToneButton()
-    {
-        if(mTestPreemptToneButton == null)
-        {
-            mTestPreemptToneButton = new Button("Test");
-            IconNode iconNode = new IconNode(FontAwesome.PLAY);
-            iconNode.setFill(Color.CORNFLOWERBLUE);
-            mTestPreemptToneButton.setGraphic(iconNode);
-            mTestPreemptToneButton.setOnAction(new EventHandler<ActionEvent>()
-            {
-                @Override
-                public void handle(ActionEvent event)
-                {
-                    play(mPlaybackPreference.getPreemptTone());
-                }
-            });
-
-            mTestPreemptToneButton.disableProperty().bind(getUseAudioSegmentPreemptToneSwitch().selectedProperty().not());
-        }
-
-        return mTestPreemptToneButton;
-    }
-
     public Button getTestDropToneButton()
     {
         if(mTestDropToneButton == null)
@@ -282,14 +201,7 @@ public class PlaybackPreferenceEditor extends HBox
             IconNode iconNode = new IconNode(FontAwesome.PLAY);
             iconNode.setFill(Color.CORNFLOWERBLUE);
             mTestDropToneButton.setGraphic(iconNode);
-            mTestDropToneButton.setOnAction(new EventHandler<ActionEvent>()
-            {
-                @Override
-                public void handle(ActionEvent event)
-                {
-                    play(mPlaybackPreference.getDropTone());
-                }
-            });
+            mTestDropToneButton.setOnAction(event -> play(mPlaybackPreference.getDropTone()));
 
             mTestDropToneButton.disableProperty().bind(getUseAudioSegmentDropToneSwitch().selectedProperty().not());
         }
@@ -357,36 +269,6 @@ public class PlaybackPreferenceEditor extends HBox
         return mStartToneVolumeComboBox;
     }
 
-    public ComboBox<ToneFrequency> getPreemptToneFrequencyComboBox()
-    {
-        if(mPreemptToneFrequencyComboBox == null)
-        {
-            mPreemptToneFrequencyComboBox = new ComboBox<>();
-            mPreemptToneFrequencyComboBox.getItems().addAll(ToneFrequency.values());
-            mPreemptToneFrequencyComboBox.getSelectionModel().select(mPlaybackPreference.getPreemptToneFrequency());
-            mPreemptToneFrequencyComboBox.getSelectionModel().selectedItemProperty()
-                .addListener((observable, oldValue, newValue) -> mPlaybackPreference.setPreemptToneFrequency(newValue));
-            mPreemptToneFrequencyComboBox.disableProperty().bind(getUseAudioSegmentPreemptToneSwitch().selectedProperty().not());
-        }
-
-        return mPreemptToneFrequencyComboBox;
-    }
-
-    public ComboBox<ToneVolume> getPreemptToneVolumeComboBox()
-    {
-        if(mPreemptToneVolumeComboBox == null)
-        {
-            mPreemptToneVolumeComboBox = new ComboBox<>();
-            mPreemptToneVolumeComboBox.getItems().addAll(ToneVolume.values());
-            mPreemptToneVolumeComboBox.getSelectionModel().select(mPlaybackPreference.getPreemptToneVolume());
-            mPreemptToneVolumeComboBox.getSelectionModel().selectedItemProperty()
-                .addListener((observable, oldValue, newValue) -> mPlaybackPreference.setPreemptToneVolume(newValue));
-            mPreemptToneVolumeComboBox.disableProperty().bind(getUseAudioSegmentPreemptToneSwitch().selectedProperty().not());
-        }
-
-        return mPreemptToneVolumeComboBox;
-    }
-
     /**
      * Plays the audio buffer over the default mono playback device
      * @param audioSamples with 8 kHz mono PCM samples

src/main/java/io/github/dsheirer/gui/preference/tuner/RspDuoSelectionMode.java

@@ -0,0 +1,62 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.gui.preference.tuner;
+
+/**
+ * RSPduo tuner select mode preferences.
+ */
+public enum RspDuoSelectionMode
+{
+    DUAL("Dual Tuner"),
+    SINGLE_1("Single Tuner 1"),
+    SINGLE_2("Single Tuner 2");
+
+    private String mLabel;
+
+    RspDuoSelectionMode(String label)
+    {
+        mLabel = label;
+    }
+
+    @Override
+    public String toString()
+    {
+        return mLabel;
+    }
+
+    /**
+     * Lookup the enum entry from the value.
+     * @param value to match
+     * @return matched value or (default) DUAL if the value couldn't be matched.
+     */
+    public static RspDuoSelectionMode fromValue(String value)
+    {
+        try
+        {
+            return RspDuoSelectionMode.valueOf(value);
+        }
+        catch(Exception e)
+        {
+            //Do nothing
+        }
+
+        return DUAL;
+    }
+}

src/main/java/io/github/dsheirer/gui/preference/tuner/TunerPreferenceEditor.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2020 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.gui.preference.tuner;
@@ -55,6 +52,8 @@ public class TunerPreferenceEditor extends HBox
     private Label mHelpTextPolyphaseLabel;
     private Label mHeterodyneLabel;
     private Label mHelpTextHeterodyneLabel;
+    private ChoiceBox<RspDuoSelectionMode> mRspDuoTunerModeChoiceBox;
+    private Label mRspDuoModeLabel;
 
     public TunerPreferenceEditor(UserPreferences userPreferences)
     {
@@ -66,19 +65,24 @@ public class TunerPreferenceEditor extends HBox
     {
         if(mEditorPane == null)
         {
+            int row = 0;
             mEditorPane = new GridPane();
             mEditorPane.setVgap(10);
             mEditorPane.setHgap(10);
             mEditorPane.setPadding(new Insets(10, 10, 10, 10));
-            GridPane.setHalignment(getChannelizerLabel(), HPos.LEFT);
-            mEditorPane.add(getChannelizerLabel(), 0, 0);
-            mEditorPane.add(getChannelizerTypeChoiceBox(), 1, 0);
-            mEditorPane.add(new Separator(Orientation.HORIZONTAL), 0, 1, 2, 1);
-            mEditorPane.add(getPolyphaseLabel(), 0, 2, 2, 1);
-            mEditorPane.add(getHelpTextPolyphaseLabel(), 0, 3, 2, 3);
-            mEditorPane.add(new Label(" "), 0, 6);
-            mEditorPane.add(getHeterodyneLabel(), 0, 7, 2, 1);
-            mEditorPane.add(getHelpTextHeterodyneLabel(), 0, 8, 2, 3);
+            GridPane.setHalignment(getChannelizerLabel(), HPos.RIGHT);
+            mEditorPane.add(getChannelizerLabel(), 0, row);
+            mEditorPane.add(getChannelizerTypeChoiceBox(), 1, row);
+            mEditorPane.add(getPolyphaseLabel(), 0, ++row, 2, 1);
+            mEditorPane.add(getHelpTextPolyphaseLabel(), 0, ++row, 2, 3);
+            row += 3;
+            mEditorPane.add(new Label(" "), 0, row);
+            mEditorPane.add(getHeterodyneLabel(), 0, ++row, 2, 1);
+            mEditorPane.add(getHelpTextHeterodyneLabel(), 0, ++row, 2, 3);
+            row += 3;
+            mEditorPane.add(new Separator(Orientation.HORIZONTAL), 0, row, 2, 1);
+            mEditorPane.add(getRspDuoModeLabel(), 0, ++row);
+            mEditorPane.add(getRspDuoTunerModeChoiceBox(), 1, row);
         }
 
         return mEditorPane;
@@ -161,4 +165,40 @@ public class TunerPreferenceEditor extends HBox
 
         return mHelpTextHeterodyneLabel;
     }
+
+    private ChoiceBox<RspDuoSelectionMode> getRspDuoTunerModeChoiceBox()
+    {
+        if(mRspDuoTunerModeChoiceBox == null)
+        {
+            mRspDuoTunerModeChoiceBox = new ChoiceBox<>();
+            mRspDuoTunerModeChoiceBox.getItems().addAll(RspDuoSelectionMode.values());
+
+            RspDuoSelectionMode current = mTunerPreference.getRspDuoTunerMode();
+            mRspDuoTunerModeChoiceBox.getSelectionModel().select(current);
+
+            mRspDuoTunerModeChoiceBox.setOnAction(event -> {
+                RspDuoSelectionMode selected = mRspDuoTunerModeChoiceBox.getSelectionModel().getSelectedItem();
+                mTunerPreference.setRspDuoTunerMode(selected);
+
+                Label label = new Label("Please restart the application for this change to take effect");
+                label.setWrapText(true);
+                Alert alert = new Alert(Alert.AlertType.WARNING);
+                alert.getDialogPane().setContent(label);
+                alert.initOwner(((Node)getRspDuoTunerModeChoiceBox()).getScene().getWindow());
+                alert.show();
+            });
+        }
+
+        return mRspDuoTunerModeChoiceBox;
+    }
+
+    private Label getRspDuoModeLabel()
+    {
+        if(mRspDuoModeLabel == null)
+        {
+            mRspDuoModeLabel = new Label("SDRPlay RSPduo Selection Mode");
+        }
+
+        return mRspDuoModeLabel;
+    }
 }

src/main/java/io/github/dsheirer/icon/IconModel.java

@@ -1,18 +1,20 @@
 /*
- * *********************************************************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2017 Dennis Sheirer
+ * *****************************************************************************
+ * Copyright (C) 2014-2022 Dennis Sheirer
  *
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
- * License as published by  the Free Software Foundation, either version 3 of the License, or  (at your option) any
- * later version.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied
- * warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License  along with this program.
- * If not, see <http://www.gnu.org/licenses/>
- * *********************************************************************************************************************
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 package io.github.dsheirer.icon;
 
@@ -22,15 +24,6 @@ import com.fasterxml.jackson.dataformat.xml.JacksonXmlModule;
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
 import io.github.dsheirer.properties.SystemProperties;
 import io.github.dsheirer.util.ThreadPool;
-import javafx.beans.property.SimpleStringProperty;
-import javafx.beans.property.StringProperty;
-import javafx.collections.FXCollections;
-import javafx.collections.ListChangeListener;
-import javafx.collections.ObservableList;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import javax.swing.ImageIcon;
 import java.awt.Image;
 import java.io.IOException;
 import java.io.InputStream;
@@ -43,6 +36,15 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ListChangeListener;
+import javafx.collections.ObservableList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.ImageIcon;
 
 public class IconModel
 {
@@ -241,7 +243,6 @@ public class IconModel
         if(path != null)
         {
             Icon icon = new Icon("", path);
-
             return getScaledIcon(icon.getIcon(), height);
         }
 

src/main/java/io/github/dsheirer/identifier/Form.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -53,6 +53,7 @@ public enum Form
     SITE,
     STATE,
     SYSTEM,
+    TALKER_ALIAS,
     TALKGROUP,
     TELEPHONE_NUMBER,
     TONE,

src/main/java/io/github/dsheirer/identifier/Identifier.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,7 +19,6 @@
 package io.github.dsheirer.identifier;
 
 import io.github.dsheirer.protocol.Protocol;
-
 import java.util.Objects;
 
 /**
@@ -70,6 +69,15 @@ public abstract class Identifier<T>
         return mValue;
     }
 
+    /**
+     * Allow subclass implementations to set or update the value after construction.
+     * @param value to update or set.
+     */
+    protected void setValue(T value)
+    {
+        mValue = value;
+    }
+
     /**
      * Class/type of identifier
      */

src/main/java/io/github/dsheirer/identifier/alias/DmrTalkerAliasIdentifier.java

@@ -0,0 +1,54 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.identifier.alias;
+
+import io.github.dsheirer.protocol.Protocol;
+
+/**
+ * Talker alias value provided by the network for the current talker (ie FROM).
+ */
+public class DmrTalkerAliasIdentifier extends TalkerAliasIdentifier
+{
+    /**
+     * Constructs an instance.
+     * @param value of the talker alias
+     */
+    public DmrTalkerAliasIdentifier(String value)
+    {
+        super(value);
+    }
+
+    @Override
+    public boolean isValid()
+    {
+        return getValue() != null && !getValue().isEmpty();
+    }
+
+    @Override
+    public Protocol getProtocol()
+    {
+        return Protocol.DMR;
+    }
+
+    public static DmrTalkerAliasIdentifier create(String value)
+    {
+        return new DmrTalkerAliasIdentifier(value);
+    }
+}

src/main/java/io/github/dsheirer/identifier/alias/TalkerAliasIdentifier.java

@@ -0,0 +1,46 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.identifier.alias;
+
+import io.github.dsheirer.identifier.Form;
+import io.github.dsheirer.identifier.IdentifierClass;
+import io.github.dsheirer.identifier.Role;
+import io.github.dsheirer.identifier.string.StringIdentifier;
+
+/**
+ * Talker alias value provided by the network for the current talker (ie FROM).
+ */
+public abstract class TalkerAliasIdentifier extends StringIdentifier
+{
+    /**
+     * Constructs an instance.
+     * @param value of the string/alias identifier
+     */
+    public TalkerAliasIdentifier(String value)
+    {
+        super(value, IdentifierClass.USER, Form.TALKER_ALIAS, Role.FROM);
+    }
+
+    @Override
+    public boolean isValid()
+    {
+        return getValue() != null && !getValue().isEmpty();
+    }
+}

src/main/java/io/github/dsheirer/module/ProcessingChain.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -72,14 +72,15 @@ import io.github.dsheirer.source.SourceEvent;
 import io.github.dsheirer.source.heartbeat.Heartbeat;
 import io.github.dsheirer.source.heartbeat.IHeartbeatListener;
 import io.github.dsheirer.source.heartbeat.IHeartbeatProvider;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.locks.ReentrantLock;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Processing chain provides a framework for connecting a complex or real sample
@@ -116,12 +117,15 @@ public class ProcessingChain implements Listener<ChannelEvent>
     private Broadcaster<IMessage> mMessageBroadcaster = new Broadcaster<>();
     private Broadcaster<SquelchStateEvent> mSquelchStateEventBroadcaster = new Broadcaster<>();
     private AtomicBoolean mRunning = new AtomicBoolean();
-    private List<Module> mModules = new ArrayList<>();
     private DecodeEventHistory mDecodeEventHistory = new DecodeEventHistory(500);
     private MessageHistory mMessageHistory = new MessageHistory(500);
     private AbstractChannelState mChannelState;
     private EventBus mEventBus;
     protected Source mSource;
+    //Lock to protect access to the modules list.
+    private ReentrantLock mModuleLock = new ReentrantLock();
+    private List<Module> mModules = new ArrayList<>();
+
 
     /**
      * Creates a processing chain for managing a set of modules
@@ -196,30 +200,46 @@ public class ProcessingChain implements Listener<ChannelEvent>
      */
     public void removeTrafficChannelManager()
     {
-        Iterator<Module> it = mModules.iterator();
+        mModuleLock.lock();
 
-        while(it.hasNext())
+        try
         {
-            if(it.next() instanceof TrafficChannelManager)
+            Iterator<Module> it = mModules.iterator();
+
+            while(it.hasNext())
             {
-                it.remove();
+                if(it.next() instanceof TrafficChannelManager)
+                {
+                    it.remove();
+                }
             }
         }
+        finally
+        {
+            mModuleLock.unlock();
+        }
     }
 
     public void dispose()
     {
         stop();
 
-        List<Module> modules = new ArrayList<>(mModules);
+        mModuleLock.lock();
 
-        for(Module module : modules)
+        try
         {
-            removeModule(module);
-            module.dispose();
-        }
+            List<Module> modulesToRemove = new ArrayList<>(mModules);
 
-        mModules.clear();
+            for(Module module : modulesToRemove)
+            {
+                removeModule(module);
+                module.dispose();
+            }
+        }
+        finally
+        {
+            mModuleLock.unlock();
+        }
 
         mAudioSegmentBroadcaster.dispose();
         mDecodeEventBroadcaster.dispose();
@@ -269,12 +289,21 @@ public class ProcessingChain implements Listener<ChannelEvent>
         addModule(mSource);
     }
 
+    /**
+     * Source of sample data for this channel.
+     * @return source, may be null.
+     */
+    public Source getSource()
+    {
+        return mSource;
+    }
+
     /**
      * List of current modules for this processing chain
      */
     public List<Module> getModules()
     {
-        return mModules;
+        return Collections.unmodifiableList(mModules);
     }
 
     /**
@@ -284,13 +313,22 @@ public class ProcessingChain implements Listener<ChannelEvent>
     {
         List<DecoderState> decoderStates = new ArrayList<>();
 
-        for(Module module : mModules)
+        mModuleLock.lock();
+
+        try
         {
-            if(module instanceof DecoderState)
+            for(Module module : mModules)
             {
-                decoderStates.add((DecoderState)module);
+                if(module instanceof DecoderState)
+                {
+                    decoderStates.add((DecoderState)module);
+                }
             }
         }
+        finally
+        {
+            mModuleLock.unlock();
+        }
 
         return decoderStates;
     }
@@ -322,7 +360,17 @@ public class ProcessingChain implements Listener<ChannelEvent>
      */
     public void addModule(Module module)
     {
-        mModules.add(module);
+        mModuleLock.lock();
+
+        try
+        {
+            mModules.add(module);
+        }
+        finally
+        {
+            mModuleLock.unlock();
+        }
+
         module.setInterModuleEventBus(getEventBus());
         registerListeners(module);
         registerProviders(module);
@@ -337,7 +385,17 @@ public class ProcessingChain implements Listener<ChannelEvent>
         unregisterListeners(module);
         unregisterProviders(module);
         module.setInterModuleEventBus(null);
-        mModules.remove(module);
+
+        mModuleLock.lock();
+
+        try
+        {
+            mModules.remove(module);
+        }
+        finally
+        {
+            mModuleLock.unlock();
+        }
     }
 
     /**
@@ -656,18 +714,27 @@ public class ProcessingChain implements Listener<ChannelEvent>
                             + "sample type - cannot start processing chain");
                 }
 
-                /* Start each of the modules */
-                for(Module module : mModules)
+                mModuleLock.lock();
+
+                try
                 {
-                    try
+                    /* Start each of the modules */
+                    for(Module module : mModules)
                     {
-                        module.start();
-                    }
-                    catch(Exception e)
-                    {
-                        mLog.error("Error starting module", e);
+                        try
+                        {
+                            module.start();
+                        }
+                        catch(Exception e)
+                        {
+                            mLog.error("Error starting module", e);
+                        }
                     }
                 }
+                finally
+                {
+                    mModuleLock.unlock();
+                }
             }
             else
             {
@@ -708,15 +775,28 @@ public class ProcessingChain implements Listener<ChannelEvent>
             }
 
             /* Stop each of the remaining modules */
-            for(Module module : mModules)
-            {
-                module.stop();
-            }
+            mModuleLock.lock();
 
-            //Reset each of the modules
-            for(Module module : mModules)
+            try
             {
-                module.reset();
+                for(Module module : mModules)
+                {
+                    module.stop();
+                }
+
+                //Reset each of the modules
+                for(Module module : mModules)
+                {
+                    module.reset();
+                }
+            }
+            catch(Exception e)
+            {
+                mLog.error("Error stopping or resetting modules", e);
+            }
+            finally
+            {
+                mModuleLock.unlock();
             }
         }
     }
@@ -728,13 +808,22 @@ public class ProcessingChain implements Listener<ChannelEvent>
     {
         List<Module> eventLoggingModules = new ArrayList<>();
 
-        for(Module module : mModules)
+        mModuleLock.lock();
+
+        try
         {
-            if(module instanceof EventLogger)
+            for(Module module : mModules)
             {
-                eventLoggingModules.add(module);
+                if(module instanceof EventLogger)
+                {
+                    eventLoggingModules.add(module);
+                }
             }
         }
+        finally
+        {
+            mModuleLock.unlock();
+        }
 
         for(Module eventLoggingModule : eventLoggingModules)
         {
@@ -749,21 +838,30 @@ public class ProcessingChain implements Listener<ChannelEvent>
     {
         List<Module> recordingModules = new ArrayList<>();
 
-        for(Module module : mModules)
+        mModuleLock.lock();
+
+        try
         {
-            if(module instanceof ComplexSamplesWaveRecorder)
+            for(Module module : mModules)
             {
-                recordingModules.add(module);
-            }
-            else if(module instanceof MBECallSequenceRecorder)
-            {
-                recordingModules.add(module);
-            }
-            else if(module instanceof BinaryRecorder)
-            {
-                recordingModules.add(module);
+                if(module instanceof ComplexSamplesWaveRecorder)
+                {
+                    recordingModules.add(module);
+                }
+                else if(module instanceof MBECallSequenceRecorder)
+                {
+                    recordingModules.add(module);
+                }
+                else if(module instanceof BinaryRecorder)
+                {
+                    recordingModules.add(module);
+                }
             }
         }
+        finally
+        {
+            mModuleLock.unlock();
+        }
 
         for(Module recordingModule : recordingModules)
         {

src/main/java/io/github/dsheirer/module/decode/dmr/DMRDecoderState.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -27,6 +27,7 @@ import io.github.dsheirer.channel.state.TimeslotDecoderState;
 import io.github.dsheirer.controller.channel.Channel;
 import io.github.dsheirer.controller.channel.Channel.ChannelType;
 import io.github.dsheirer.controller.channel.ChannelConfigurationChangeNotification;
+import io.github.dsheirer.identifier.Form;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.identifier.IdentifierClass;
 import io.github.dsheirer.identifier.IdentifierCollection;
@@ -59,6 +60,7 @@ import io.github.dsheirer.module.decode.dmr.message.data.header.HeaderMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.LCMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.GPSInformation;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.GroupVoiceChannelUser;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.TalkerAliasComplete;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.UnitToUnitVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraUnitToUnitVoiceChannelUser;
@@ -66,22 +68,24 @@ import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.Capaci
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusWideAreaVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.CapacityPlusRestChannel;
 import io.github.dsheirer.module.decode.dmr.message.data.packet.DMRPacketMessage;
+import io.github.dsheirer.module.decode.dmr.message.data.packet.UDTShortMessageService;
 import io.github.dsheirer.module.decode.dmr.message.data.terminator.Terminator;
 import io.github.dsheirer.module.decode.dmr.message.type.ServiceOptions;
 import io.github.dsheirer.module.decode.dmr.message.voice.VoiceMessage;
 import io.github.dsheirer.module.decode.event.DecodeEvent;
 import io.github.dsheirer.module.decode.event.DecodeEventType;
 import io.github.dsheirer.module.decode.event.PlottableDecodeEvent;
+import io.github.dsheirer.module.decode.ip.hytera.sds.HyteraUnknownPacket;
+import io.github.dsheirer.module.decode.ip.hytera.sms.HyteraSmsPacket;
 import io.github.dsheirer.protocol.Protocol;
 import io.github.dsheirer.source.tuner.channel.rotation.AddChannelRotationActiveStateRequest;
 import io.github.dsheirer.util.PacketUtil;
-import org.jdesktop.swingx.mapviewer.GeoPosition;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
+import org.jdesktop.swingx.mapviewer.GeoPosition;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Decoder state for an DMR channel.  Maintains the call/data/idle state of the channel and produces events by
@@ -207,6 +211,10 @@ public class DMRDecoderState extends TimeslotDecoderState
             {
                 processPacket((DMRPacketMessage)message);
             }
+            else if(message instanceof UDTShortMessageService sms)
+            {
+                processSMS(sms);
+            }
             else if(message instanceof DMRMessage)
             {
                 broadcast(new DecoderStateEvent(this, Event.CONTINUATION, State.ACTIVE, getTimeslot()));
@@ -269,6 +277,24 @@ public class DMRDecoderState extends TimeslotDecoderState
         }
     }
 
+    /**
+     * Processes a short data message carrying SMS text
+     * @param sms
+     */
+    private void processSMS(UDTShortMessageService sms)
+    {
+        broadcast(new DecoderStateEvent(this, Event.START, State.DATA, getTimeslot()));
+
+        DecodeEvent smsEvent = DMRDecodeEvent.builder(sms.getTimestamp())
+                .eventType(DecodeEventType.SMS)
+                .eventDescription(DecodeEventType.SMS.toString())
+                .details("MESSAGE: " + sms.getSMS())
+                .identifiers(new IdentifierCollection(sms.getIdentifiers()))
+                .timeslot(sms.getTimeslot())
+                .build();
+        broadcast(smsEvent);
+    }
+
     /**
      * Processes a packet message
      */
@@ -276,27 +302,60 @@ public class DMRDecoderState extends TimeslotDecoderState
     {
         broadcast(new DecoderStateEvent(this, Event.START, State.DATA, getTimeslot()));
 
-        DecodeEvent packetEvent = DMRDecodeEvent.builder(packet.getTimestamp())
-            .eventDescription(DecodeEventType.DATA_PACKET.name())
-            .identifiers(getMergedIdentifierCollection(packet.getIdentifiers()))
-            .timeslot(packet.getTimeslot())
-            .details(packet.toString())
-            .build();
+        //Hytera SDS Long SMS message
+        if(packet.getPacket() instanceof HyteraSmsPacket hyteraSmsPacket)
+        {
+            MutableIdentifierCollection mic = new MutableIdentifierCollection(packet.getIdentifiers());
+            mic.remove(Form.RADIO);
+            mic.remove(Form.TALKGROUP);
+            mic.update(hyteraSmsPacket.getSource());
+            mic.update(hyteraSmsPacket.getDestination());
 
-        broadcast(packetEvent);
+            DecodeEvent smsEvent = DMRDecodeEvent.builder(packet.getTimestamp())
+                    .eventDescription(DecodeEventType.SMS.name())
+                    .identifiers(mic)
+                    .timeslot(packet.getTimeslot())
+                    .details("SMS:" + hyteraSmsPacket.getSMS())
+                    .build();
+            broadcast(smsEvent);
+        }
+        //Unknown Hytera Long Data Service Token Message
+        else if(packet.getPacket() instanceof HyteraUnknownPacket hyteraUnknownPacket)
+        {
+            MutableIdentifierCollection mic = new MutableIdentifierCollection(packet.getIdentifiers());
 
-        GeoPosition geoPosition = PacketUtil.extractGeoPosition(packet.getPacket());
-
-        if (geoPosition != null) {
-            PlottableDecodeEvent plottableDecodeEvent = PlottableDecodeEvent.plottableBuilder(packet.getTimestamp())
-                    .channel(getCurrentChannel())
-                    .eventDescription(DecodeEventType.GPS.toString())
+            DecodeEvent unknownTokenEvent = DMRDecodeEvent.builder(packet.getTimestamp())
+                    .eventDescription(DecodeEventType.UNKNOWN_PACKET.name())
+                    .identifiers(mic)
+                    .timeslot(packet.getTimeslot())
+                    .details("HYTERA UNK TOKEN MSG:" + hyteraUnknownPacket.getHeader().toString())
+                    .build();
+            broadcast(unknownTokenEvent);
+        }
+        else
+        {
+            DecodeEvent packetEvent = DMRDecodeEvent.builder(packet.getTimestamp())
+                    .eventDescription(DecodeEventType.DATA_PACKET.name())
                     .identifiers(getMergedIdentifierCollection(packet.getIdentifiers()))
-                    .protocol(Protocol.LRRP)
-                    .location(geoPosition)
+                    .timeslot(packet.getTimeslot())
+                    .details(packet.toString())
                     .build();
 
-            broadcast(plottableDecodeEvent);
+            broadcast(packetEvent);
+
+            GeoPosition geoPosition = PacketUtil.extractGeoPosition(packet.getPacket());
+
+            if (geoPosition != null) {
+                PlottableDecodeEvent plottableDecodeEvent = PlottableDecodeEvent.plottableBuilder(packet.getTimestamp())
+                        .channel(getCurrentChannel())
+                        .eventDescription(DecodeEventType.GPS.toString())
+                        .identifiers(getMergedIdentifierCollection(packet.getIdentifiers()))
+                        .protocol(Protocol.LRRP)
+                        .location(geoPosition)
+                        .build();
+
+                broadcast(plottableDecodeEvent);
+            }
         }
     }
 
@@ -605,7 +664,7 @@ public class DMRDecoderState extends TimeslotDecoderState
                 break;
             case HYTERA_08_ANNOUNCEMENT:
             case HYTERA_68_ANNOUNCEMENT:
-            case HYTERA_XPT_SITE_STATE:
+            case HYTERA_68_XPT_SITE_STATE:
 
             case MOTOROLA_CAPPLUS_NEIGHBOR_REPORT:
                 if(csbk instanceof CapacityPlusNeighbors)
@@ -1127,6 +1186,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     broadcast(gpsEvent);
                 }
                 break;
+            case FULL_STANDARD_TALKER_ALIAS_COMPLETE:
+                if(message instanceof TalkerAliasComplete tac && tac.hasTalkerAliasIdentifier())
+                {
+                    getIdentifierCollection().update(tac.getTalkerAliasIdentifier());
+                }
+                break;
         }
     }
 

src/main/java/io/github/dsheirer/module/decode/dmr/DMRMessageFramer.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -30,17 +30,14 @@ import io.github.dsheirer.module.decode.dmr.message.DMRBurst;
 import io.github.dsheirer.module.decode.dmr.message.DMRMessage;
 import io.github.dsheirer.module.decode.dmr.message.DMRMessageFactory;
 import io.github.dsheirer.module.decode.dmr.message.data.packet.DMRPacketMessage;
-import io.github.dsheirer.module.decode.ip.lrrp.LRRPPacket;
-import io.github.dsheirer.module.decode.ip.lrrp.token.Identity;
-import io.github.dsheirer.module.decode.ip.lrrp.token.Token;
+import io.github.dsheirer.module.decode.ip.mototrbo.lrrp.LRRPPacket;
+import io.github.dsheirer.module.decode.ip.mototrbo.lrrp.token.Identity;
+import io.github.dsheirer.module.decode.ip.mototrbo.lrrp.token.Token;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.protocol.Protocol;
 import io.github.dsheirer.record.binary.BinaryReader;
 import io.github.dsheirer.sample.Broadcaster;
 import io.github.dsheirer.sample.Listener;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.file.DirectoryStream;
@@ -53,6 +50,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.function.Consumer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * DMR Sync Detector and Message Framer.  Includes capability to detect PLL out-of-phase lock errors

src/main/java/io/github/dsheirer/module/decode/dmr/DMRMessageProcessor.java

@@ -1,52 +1,56 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 package io.github.dsheirer.module.decode.dmr;
 
+import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.message.IMessage;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
+import io.github.dsheirer.module.decode.dmr.identifier.DMRTalkgroup;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
 import io.github.dsheirer.module.decode.dmr.message.DMRBurst;
+import io.github.dsheirer.module.decode.dmr.message.data.IDLEMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.block.DataBlock;
+import io.github.dsheirer.module.decode.dmr.message.data.csbk.standard.Aloha;
 import io.github.dsheirer.module.decode.dmr.message.data.csbk.standard.Preamble;
+import io.github.dsheirer.module.decode.dmr.message.data.csbk.standard.announcement.Announcement;
 import io.github.dsheirer.module.decode.dmr.message.data.header.MBCHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.PacketSequenceHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.ProprietaryDataHeader;
+import io.github.dsheirer.module.decode.dmr.message.data.header.UDTHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FLCAssembler;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FullLCMessage;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.TalkerAliasAssembler;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.SLCAssembler;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.ShortLCMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCAssembler;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
 import io.github.dsheirer.module.decode.dmr.message.data.packet.PacketSequenceAssembler;
+import io.github.dsheirer.module.decode.dmr.message.data.terminator.Terminator;
 import io.github.dsheirer.module.decode.dmr.message.voice.VoiceEMBMessage;
 import io.github.dsheirer.sample.Listener;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Processes DMR messages and performs re-assembly of link control fragments
@@ -54,12 +58,13 @@ import java.util.TreeMap;
 public class DMRMessageProcessor implements Listener<IMessage>
 {
     private final static Logger mLog = LoggerFactory.getLogger(DMRMessageProcessor.class);
-
+    private DecodeConfigDMR mConfigDMR;
     private FLCAssembler mFLCAssemblerTimeslot1 = new FLCAssembler(1);
     private FLCAssembler mFLCAssemblerTimeslot2 = new FLCAssembler(2);
     private MBCAssembler mMBCAssembler = new MBCAssembler();
     private PacketSequenceAssembler mPacketSequenceAssembler;
     private SLCAssembler mSLCAssembler = new SLCAssembler();
+    private TalkerAliasAssembler mTalkerAliasAssembler = new TalkerAliasAssembler();
     private Listener<IMessage> mMessageListener;
     private Map<Integer,TimeslotFrequency> mTimeslotFrequencyMap = new TreeMap<>();
 
@@ -68,6 +73,8 @@ public class DMRMessageProcessor implements Listener<IMessage>
      */
     public DMRMessageProcessor(DecodeConfigDMR config)
     {
+        mConfigDMR = config;
+
         for(TimeslotFrequency timeslotFrequency: config.getTimeslotMap())
         {
             mTimeslotFrequencyMap.put(timeslotFrequency.getNumber(), timeslotFrequency);
@@ -157,22 +164,43 @@ public class DMRMessageProcessor implements Listener<IMessage>
             }
 
             //Packet Sequence Message Assembly ...
-            if(message instanceof Preamble)
+            if(message instanceof Preamble preamble)
             {
-                mPacketSequenceAssembler.process((Preamble)message);
+                mPacketSequenceAssembler.process(preamble);
             }
-            else if(message instanceof PacketSequenceHeader)
+            else if(message instanceof PacketSequenceHeader header)
             {
-                mPacketSequenceAssembler.process((PacketSequenceHeader)message);
+                mPacketSequenceAssembler.process(header);
             }
-            else if(message instanceof ProprietaryDataHeader)
+            else if(message instanceof ProprietaryDataHeader header)
             {
-                mPacketSequenceAssembler.process(((ProprietaryDataHeader)message));
+                mPacketSequenceAssembler.process(header);
             }
-            else if(message instanceof DataBlock)
+            else if(message instanceof DataBlock dataBlock)
             {
-                mPacketSequenceAssembler.process((DataBlock)message);
+                mPacketSequenceAssembler.process(dataBlock);
             }
+            else if(message instanceof UDTHeader header)
+            {
+                mPacketSequenceAssembler.process(header);
+            }
+            else if((message instanceof IDLEMessage || message instanceof Aloha || message instanceof Announcement) &&
+                    message.getTimeslot() != 0)
+            {
+                mPacketSequenceAssembler.dispatchPacketSequence(message.getTimeslot());
+            }
+
+            //Reset talker alias assembler on Idle or Terminator
+            if(message.isValid() && (message instanceof IDLEMessage || message instanceof Terminator))
+            {
+                mTalkerAliasAssembler.reset(message.getTimeslot());
+            }
+        }
+
+        //Assemble Talker Alias from FLC message fragments (header & blocks 1-3)
+        if(message instanceof FullLCMessage flc && flc.getOpcode().isTalkerAliasOpcode() && message.isValid())
+        {
+            dispatch(mTalkerAliasAssembler.process(flc));
         }
 
         //Now that the message has been (potentially) enriched, dispatch it to the modules
@@ -186,6 +214,26 @@ public class DMRMessageProcessor implements Listener<IMessage>
     {
         if(mMessageListener != null && message != null)
         {
+            //Configure compressed talkgroups for the DMR talkgroup identifiers in the message.
+            if(mConfigDMR.isUseCompressedTalkgroups())
+            {
+                try
+                {
+                    for(Identifier identifier: message.getIdentifiers())
+                    {
+                        if(identifier instanceof DMRTalkgroup talkgroup)
+                        {
+                            talkgroup.setCompressed(true);
+                        }
+                    }
+                }
+                catch(Exception e)
+                {
+                    mLog.error("Error applying compressed talkgroup setting to identifier in message: " + message +
+                            " [" + message.getClass() + "]");
+                }
+            }
+
             mMessageListener.receive(message);
         }
     }

src/main/java/io/github/dsheirer/module/decode/dmr/DecodeConfigDMR.java

@@ -1,7 +1,6 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2020 Dennis Sheirer, Zhenyu Mao
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -15,7 +14,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
+ * ****************************************************************************
  */
 package io.github.dsheirer.module.decode.dmr;
 
@@ -25,7 +24,6 @@ import io.github.dsheirer.module.decode.DecoderType;
 import io.github.dsheirer.module.decode.config.DecodeConfiguration;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.source.tuner.channel.ChannelSpecification;
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -40,6 +38,7 @@ public class DecodeConfigDMR extends DecodeConfiguration
     private int mTrafficChannelPoolSize = TRAFFIC_CHANNEL_LIMIT_DEFAULT;
     private boolean mIgnoreDataCalls = true;
     private boolean mIgnoreCRCChecksums = false;
+    private boolean mUseCompressedTalkgroups = false;
     private List<TimeslotFrequency> mTimeslotMap = new ArrayList<>();
 
     public DecodeConfigDMR()
@@ -109,6 +108,28 @@ public class DecodeConfigDMR extends DecodeConfiguration
         mIgnoreCRCChecksums = ignore;
     }
 
+    /**
+     * Indicates if decoder should use compressed talkgroups
+     */
+    @JacksonXmlProperty(isAttribute = true, localName = "use_compressed_talkgroups")
+    public boolean isUseCompressedTalkgroups()
+    {
+        return mUseCompressedTalkgroups;
+    }
+
+    /**
+     * Sets flag to use compressed talkgroups.
+     *
+     * Converts the air interface value to a compressed value described in ETSI 102 361-2, V.2.4.1, Paragraph C2.1.2
+     * This has been observed in use on Hytera Tier III systems.
+     * See: https://cwh050.blogspot.com/2021/03/converting-flat-number-to-dmr-id.html?m=1
+     * @param useCompressedTalkgroups true to use compressed talkgroups.
+     */
+    public void setUseCompressedTalkgroups(boolean useCompressedTalkgroups)
+    {
+        mUseCompressedTalkgroups = useCompressedTalkgroups;
+    }
+
     /**
      * Traffic channel pool size.
      * @return

src/main/java/io/github/dsheirer/module/decode/dmr/identifier/DMRTalkgroup.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
- *  *
- *  * This program is free software: you can redistribute it and/or modify
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.module.decode.dmr.identifier;
@@ -26,16 +23,33 @@ import io.github.dsheirer.identifier.Role;
 import io.github.dsheirer.identifier.talkgroup.TalkgroupIdentifier;
 import io.github.dsheirer.protocol.Protocol;
 
+/**
+ * DMR Talkgroup identifier
+ */
 public class DMRTalkgroup extends TalkgroupIdentifier
 {
-    public DMRTalkgroup(Integer value)
+    private boolean mCompressed = false;
+    private int mOriginalValue;
+
+    /**
+     * Constructs an instance
+     * @param value of the talkgroup
+     */
+    public DMRTalkgroup(int value)
     {
         super(value, Role.TO);
+        mOriginalValue = value;
     }
 
-    public DMRTalkgroup(Integer value, Role role)
+    /**
+     * Constructs an instance
+     * @param value of the talkgroup
+     * @param role of the talkgroup
+     */
+    public DMRTalkgroup(int value, Role role)
     {
         super(value, role);
+        mOriginalValue = value;
     }
 
     @Override
@@ -44,6 +58,84 @@ public class DMRTalkgroup extends TalkgroupIdentifier
         return Protocol.DMR;
     }
 
+    @Override
+    public String toString()
+    {
+        if(mCompressed)
+        {
+            return super.toString() + "(c)";
+        }
+        else
+        {
+            return super.toString();
+        }
+    }
+
+    /**
+     * Sets the compressed flag for this value.
+     *
+     * Talkgroup compression is an alternate format for DMR systems that allows the end user to dial a 7-digit number
+     * on their mobile keypad using just the digits 0 - 9, to address a talkgroup.  The downside to this is that the
+     * total available talkgroup address space is reduced to just those dialable talkgroups.
+     *
+     * @param compressed true when using compressed talkgroup format.
+     */
+    public void setCompressed(boolean compressed)
+    {
+        mCompressed = compressed;
+
+        if(mCompressed)
+        {
+            setValue(getCompressed(mOriginalValue));
+        }
+        else
+        {
+            setValue(mOriginalValue);
+        }
+    }
+
+    /**
+     * Converts the air interface value to a compressed value described in ETSI 102 361-2, V.2.4.1, Paragraph C2.1.2
+     *
+     * This has been observed in use on Hytera Tier III systems.
+     *
+     * See: https://cwh050.blogspot.com/2021/03/converting-flat-number-to-dmr-id.html?m=1
+     *
+     * @param original value to convert
+     * @return converted value.
+     */
+    public static int getCompressed(int original)
+    {
+        int converted = 0;
+        int units = original / 1_464_100;
+        converted += (units * 1_000_000);
+        original -= (units * 1_464_100);
+
+        units = original / 146_410;
+        converted += (units * 100_000);
+        original -= (units * 146_410);
+
+        units = original / 14_641;
+        converted += (units * 10_000);
+        original -= (units * 14_641);
+
+        units = original / 1_331;
+        converted += (units * 1_000);
+        original -= (units * 1_331);
+
+        units = original / 121;
+        converted += (units * 100);
+        original -= (units * 121);
+
+        units = original / 11;
+        converted += (units * 10);
+        original -= (units * 11);
+
+        converted += original;
+
+        return converted;
+    }
+
     /**
      * Creates a DMR TO talkgroup identifier
      */

src/main/java/io/github/dsheirer/module/decode/dmr/identifier/DmrTier3Radio.java

@@ -0,0 +1,78 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.identifier;
+
+import io.github.dsheirer.identifier.Role;
+import io.github.dsheirer.identifier.radio.RadioIdentifier;
+import io.github.dsheirer.module.decode.dmr.message.type.Tier3Gateway;
+
+/**
+ * DMR Tier-III (ie trunked) radio identifier with custom overrides to correctly label Gateways & Identities
+ */
+public class DmrTier3Radio extends DMRRadio
+{
+    public DmrTier3Radio(Integer value, Role role)
+    {
+        super(value, role);
+    }
+
+    public boolean isGateway()
+    {
+        return Tier3Gateway.isGateway(getValue());
+    }
+
+    @Override
+    public String toString()
+    {
+        if(isGateway())
+        {
+            return Tier3Gateway.fromValue(getValue()).getLabel();
+        }
+        else
+        {
+            return super.toString();
+        }
+    }
+
+    /**
+     * Creates a DMR TO radio identifier
+     */
+    public static RadioIdentifier createTo(int radioId)
+    {
+        return new DmrTier3Radio(radioId, Role.TO);
+    }
+
+    /**
+     * Creates a DMR FROM radio identifier
+     */
+    public static RadioIdentifier createFrom(int radioId)
+    {
+        return new DmrTier3Radio(radioId, Role.FROM);
+    }
+
+    /**
+     * Creates a DMR ANY radio identifier
+     */
+    public static RadioIdentifier createAny(int radioId)
+    {
+        return new DmrTier3Radio(radioId, Role.ANY);
+    }
+
+}