Commit Graph

38 Commits

Author SHA1 Message Date
Denny
8215b78a43 Resolves #161 - E4000 tuner error. Tweaks settings in the USB transfer processor to improve latency in IQ buffer handling. 2017-01-29 09:07:48 -05:00
Denny
74aab2cc72 Expanded error message for when drivers are not installed on user machine for RTL2832. 2017-01-28 20:04:20 -05:00
Denny
a302d098de 126 - Significant improvement in processor and memory utilization. Refactors all USB tuner sample processing with a new USBTransferProcessor class. LibUSB transfer timeout processing is now consolidated under the TunerManager and tuners register with this singleton to auto-start or auto-stop USB bulk transfer processing. Resolves long-standing issue impacting multi-tuner use where the second and subsequent tuners may have been routinely starved for LibUSB processing time under heavy-loading. All tuner buffer threaded processing is now handled as runnables in the scheduled thread pool, eliminating tuner-dedicated processing threads. Added tuner buffer size management to prevent memory blow-out when down-stream processing is either lagging or impacted by java garbage collection operations. Both tuners and individual DDC channels now have bounded sample buffer queues that automatically enter and exit overflow mode when predefined max/reset thresholds are met. When any queue goes into overflow mode, sample buffers are simply dropped in favor of preserving program/memory stability. 2017-01-28 09:08:11 -05:00
Denny
6e94d9ce51 #108 [WIP] Created new ThreadPool class with a static ScheduledThreadExecutor that is now shared by all components. Removed ThreadPoolManager from all classes. Consolidating into 1 pool seems to have reduced CPU usage by ~15-20%. Overall memory usage is also reduced. 2017-01-22 09:33:47 -05:00
Denny
3af4b953f4 Changes internal audio sample rate from 48 kHz down to 8 kHz. Updates the P25 audio module to output 8 kHz audio. Updates the audio recorder to record at 8 kHz rate.
Note: required updated JMBE 0.3.3 library which supports 8 kHz audio output sample rate.
2016-08-19 21:09:39 -04:00
denny
c3d52ff86e Merges #34 Major redesign of Tuner, Channel and Alias management.
Changes to model, view and controller components and updates all gui
editors.  Removes the configuration panel and tree and replaces with 3
new panels.  Updates playlist.xml to a new playlist_v2.xml format.
2016-04-01 08:23:49 -04:00
denny
0605760fcd wip #34 - removed some wrapper methods from tuner since the tuner
controller is now exposed (frequency, sample rate, channel count, etc)
2016-03-13 07:38:29 -04:00
denny
218eeb1848 WIP #34 - more work on tuner model and view. Includes new tuner
configuration and tuner configuration assignment editors.  Beginning of
tuner editor panel rework.   Removes most of the remaining JTree
configuration pieces.  Updates the settings manager to load and save
tuners and refactors all of the tuner configuration management out into
the tuner configuration model.
2016-03-12 12:54:48 -05:00
denny
63cea60c42 Merges master CF2C0CA, EEAD22F, 5F2D8C8, 22D3871, and 6F2A7E8 - updates
libusb transfer processing and shutdown/cancel management of transfers
in progress.
2016-02-27 09:45:47 -05:00
denny
cf2c0ca07d Resolves significant memory usage issue - updates Airspy and HackRF with
the recent changes applied to RTL2832 Tuner controller for processing of
libusb transfer buffers.
2016-02-27 06:19:35 -05:00
denny
eead22ffad Issue #59 - more changes to improve handling of transfer buffers between
tuner start/stop iterations.
2016-02-26 14:52:31 -05:00
denny
5f2d8c8fe6 Issue #59 - reorganizes management of the libusb transfers queue to
better handle processing and shutdowns.

-Reuses transfers between tuner start/stop invocations

-Moves libusb transfer status direct byte buffer allocation out of
buffer processing thread and reuses it, saving a lot of memory
allocations over time.
2016-02-26 14:35:34 -05:00
denny
22d3871d0b Restructures transfer buffer handling to better handle shutdown and
canceling of transfers across multiple threads.
2016-02-26 13:28:59 -05:00
denny
399d164bd0 Resolves #57 - default tuner configuration per tuner type was being
shared across multiple tuners of the same type, unless the user created
a new tuner configuration for each tuner. 

Updated code to create a default tuner configuration based on the tuner
type, but name the configuration as 'Default-UNIQUETUNERID', so that any
changes to that uniquely identified tuner will persist across sessions.

Note: this does not avoid the situation where multiple tuners of the
same type are all using the same default serial number (e.g. 0000001).
In this case, they will all still share the same configuraiton.  User
must change the serial number of the dongle in order for it to be
uniquely identifiable, so that we can correctly lookup the configuration
for the specific tuner.
2016-02-26 06:07:21 -05:00
denny
6f2a7e89a9 Resolves issue with RTL2832 Tuner cancelling transfer buffers that
haven't yet been initialized.  This occurs when there is a channel
allocated from the tuner that is the first/only listener and then is
immediately released.  Some of the buffers are in motion and the others
simply haven't yet been initialized.
2016-02-22 20:49:20 -05:00
denny
a807ff5c07 Resolves issue with RTL2832 tuner where we attempt to cancel transfers
that have not yet been initialized.
2016-02-22 20:47:40 -05:00
denny
4be63d4b95 Work in progress.
-Started work on new channel editor channel viewer/controller
-Removed a number of unused buffer package classes
-Moved automatic frequency control to be a module and removed special
handling
-Added IUnfilteredRealBufferListener & Provider interfaces
-Completely removed the ResourceManager class
2016-02-13 14:57:12 -05:00
denny
9c305b0732 Resolves issue with AFC and frequency change event handling,
specifically for P25 C4FM frequency tracking.

-Clarifies frequency change event naming and adds request/notitification
events for channel frequency correction type events

-Removes DC offset filter from P25 C4FM demodulator which was operating
independently of the AFC tracking component within the C4FM symbol
filter.

-Changed FCD tuner center DC spike buffer size after detecting that the
DC center spike was influencing the P25 C4FM filter frequency tracker
whenever the tuner's center frequency was changed to bring the channel
boundary within 3 kHz of the center spike -- set it to 5 kHz to provide
a better buffer.

-Updated spectral channel display to provide better indication of
automatic frequency control (yellow line) versus channel frequency
2015-12-31 09:08:26 -05:00
denny
0951277915 Tuner Controller update to better handle automatic center frequency
calculation when additional channels are allocated.

Incorporates tuner specific definition of overall usable bandwidth, so
that tuners like airspy can specify 90% of 10 MHz (ie 9 MHz) is truly
usable and the fringe 10% is unusable rolloff.

Also includes tuner-specific defining of the width of the central spike,
or a value of 0 indicates that the entire range is usable (ie airspy).
2015-12-12 14:08:32 -05:00
denny
ae85201343 Closes #25.
Resolves issue with tuning RTL2832 based tuners into the range of
799.555894 and 801.584395.  The pre-defined sample rates were slightly
off and causing issues with this tuning range.  I recalculated the 
sample rates and removed any that were not integral multiples of the 
48,000 Hz desired channel rate.

Updated the sample bit depth for RTL2832 and HackRF tuners.  Even though
the sample bit depth is 8 bits for each, the displayed noise floor was
off, so I increased the bit depth for each.
2015-11-08 11:42:24 -05:00
denny
0f85b7260a Adds event logging, code cleanup and some decoder issue resolution. 2015-09-02 19:41:44 -04:00
denny
f4d8ea281d Initial commit of redesigned internal processing and audio management.
Note: Several of the decoders are currently non-functioning in this
commit.  If you want the latest functioning codebase, please checkout
the commit prior to this one.  All decoders will eventually be updated
with this new architecture.

Currently broken:
- Logging and recording
- Aux decoders (Fleetsync/MDC/LoJack/Tait)
- LTR/Passport decoders

Changes in this commit:
- Module architecture for decoders and components with central
provisioning by the DecoderFactory
- Transition from Complex sample stream processing to float buffer
processing for improved memory management
- Redesigned filter structures - to support buffers and streams
- Resolved several memory leak issues
- Universal sharing of the thread pool manager
- Added centralized audio management with call/user prioritization and
new gui with mute/volume controls
- Embedded audio metadata for eventual streaming support
- Redesigned ProcessingChain to support independent re-use
- Added new TrafficChannelManager to handle traffic channel allocations
- Traffic Channel pool size and Call timeout available in P25 and
MPT1327 configs
- Redesigned channel and decoder gui components
2015-09-01 07:10:26 -04:00
dennis.sheirer
bc5080aa4a P25 - updated automatic and direct frequency control to cleanup the code and allow P25 to better track frequency and PPM changes in the tuner and provide a cleaner implementation of the AFC component in the processing chain of all of the other decoders.
Changed C4FM symbol filter to reset frequency tracking values when the tuner's frequency or PPM values change.

Moved all frequency control pieces into the source.tuner.frequency package.
2015-05-04 00:55:04 +00:00
dennis.sheirer
ba053457bd Out of memory fixes and updates to the P25 decoder.
Memory Fixes
Decreased the decimation process repeat timing so that it runs smaller work chunks more often
Decreased scheduled thread pool to 2 hot threads
Wrapped all scheduled thread pool runnables in try/catch blocks so that an exception doesn't kill the sample buffer processing thread and cause the buffer to grow unbounded.

P25 updates
Moved TSBK crc checks into the message framer so that message corrections don't occur after the message is constructed.
Added more functionality to the channel state for handling registrations and call events.
2014-12-19 23:59:38 +00:00
dennis.sheirer
ae0568ff3b Updated spectral display to used dBm scale and removed baseline/amplification items.
Updated sample handling code to use -1.0 to 1.0 float values throughout, to support P25 decoder and symbol filter.
2014-11-01 17:39:06 +00:00
dennis.sheirer
e61c3a891c Memory/CPU performance improvement and Audio/Mixer source restructuring
Converted to use float primitives and to keep samples in buffer format until the sample rate is decimated to 48kHz.  
Added new non-recursive, CIC decimation filter -- untested

Updated sound card/mixer input source management.  Now testing for mono/stereo support for each card and limiting channel choices accordingly.  Separated the mixersource into a ComplexMixer and and SimplexMixerSource.  The ComplexMixer is used for sound card based tuners like the funcube.  The SimplexMixerSource is used for demodulated sound card inputs.

Interfaces for sample handling - standardized on using 'Complex' to indicate I/Q samples and 'Simplex' to indicate demodulated float samples.  The processing chain now accepts either a decimated (48k) list of complex samples from a tuner channel source, or a 48k simplex buffer (array of demodulated float samples).

Resolved issue with HackRF tuner not applying tuner configuration information.
2014-10-26 10:11:30 +00:00
dennis.sheirer
5f4e7652bd HackRF - final check-in. Changed all tuners to use the low-level API of the usb4java library to resolve limitation in high-level API that constrains maximum sample rate to ~2.0 MHz. Added console logging to logback. 2014-10-20 23:09:50 +00:00
dennis.sheirer
c5c3029392 HackRF - partial check-in of code. HackRF is commented out in the TunerManager, since it's not yet ready for use. 2014-09-30 16:40:37 +00:00
dennis.sheirer
550aed79d4 Changed FrequencyChangeListener interface to an event so that I could describe what event was causing the frequency change and to broadcast frequency and sample rate error values.
R820T - added a couple more sample rate settings to the enum and modified the periodic sample rate info logger.
2014-09-27 09:46:18 +00:00
dennis.sheirer
e441ebf0c9 Changed to slf4j logging framework
Enhanced error handling/logging in RTL2832 eeprom device descriptor read method for troubleshooting issue present in some R820T tuners.
2014-09-20 10:04:04 +00:00
dennis.sheirer
5a4fc6690a Resolved minor issue with LTR channel state threading conflict. Added additional error handling/logging for R820T tuner startup, possibly related to reading the EEPROM contents on startup. 2014-09-19 12:31:02 +00:00
dennis.sheirer
0f43c7ed22 Automatic Frequency Control enhancement. Provides default AFC and ability to disable in the Decoder tab of each channel. Spectral display includes visual indicators of frequency center (grey) and current AFC offset (yellow). 2014-09-11 22:46:05 +00:00
dennis.sheirer
4e0fd9b7b0 Channel Spectral Display
- Adds Channel Spectrum tab to display FFT of the audio output of the currently selected channel
 - Upgrades to JTransforms 3.0 FFT library
 - Adds three new context menus to main and channel spectral displays:
   -- Baseline - affects the vertical rendering baseline of the FFT
   -- Amplification - affects the vertical height of each FFT bin
   -- Averaging - affects how many FFTs are averaged to produce the display
2014-09-06 14:58:05 +00:00
dennis.sheirer
44faeb9351 IQ recording file playback partial checkin.
NOTE: only the gui components and settings handling have been implemented.  Actual recording playback is not yet implemented.

Partial checkin of initial P25 decoder development.  

NOTE: P25 decoder is not yet functional.
2014-08-02 15:16:12 +00:00
dennis.sheirer
35a2cebe03 Converted frequency to long primitive type (from integer) in anticipation of HackRF support which requires frequencies greater than 2.147 GHz, which is the max hertz value that can be represented by an integer primitive. 2014-07-08 14:40:11 +00:00
dennis.sheirer
f0c2868cd4 R820T Tuner support added.
-Refined sample rate values for 2016 and 960 MHz rates, which were running much slower than advertised.
2014-06-06 15:13:35 +00:00
dennis.sheirer
f70fca55b7 Partial check-in of R820T tuner controller. Tuning is not yet functional. 2014-05-16 20:13:41 +00:00
dennis.sheirer
3dfedcf8d1 Initial code check in continued 2014-04-26 19:48:24 +00:00