Commit Graph

19 Commits

Author SHA1 Message Date
Denny Sheirer
7eec82deee #6 DMR Decoder (#947)
* #6 DMR decoder feature - work in progress

* #6 DMR Decoder.

* #6 DMR Decoder.  Code review updates.

Co-authored-by: Zhenyu Mao <maozhenyu@foxmail.com>
Co-authored-by: Denny <denny@denny-desktop>
2020-10-12 04:57:59 -04:00
Denny Sheirer
fa16db129b #660 Updates audio processing subsystem to use audio segments. Updates audio playback, recording and streaming to use audio segments. Adds support to UserPreferences for sound card selection and audio tone insertion during playback. Adds record preference for WAVE or MP3. Resolves issues with metadata in recordings. (#675) 2020-03-19 06:35:05 -04:00
Denny Sheirer
2d71f5173a #652 USB Tuner Error Handling Enhancements (#653)
-Separates USB timeout event processing to a dedicated thread
-Updates USB transfer buffer processor to better detect errors and auto-restart on error (max 3 times)
-Updates Tuner to add an error state and SourceManager to not select tuners with an error state
-Updates ChannelProcessingManager to auto-shutdown channels sourced from tuners set with error state
-Improves logging of USB related errors.
2020-02-09 05:40:04 -05:00
Denny Sheirer
f934676bd0 #296 APCO25 Phase II Decoder Implementation (#589)
P25 Phase 2 Decoder implementation.
2019-11-17 06:56:52 -05:00
Denny Sheirer
5481fb7d4d 61 Rotating Control Channel Support - P25 Decoder (#475)
* Initial work on add support for rotating control channels.

* Creates multiple frequency editor control.

* Updates channel source editor to allow user to select multi-frequency
configuration and add multiple frequencies.

* Adds full support for rotating control channels to the P25 channelizer.
Users define multiple frequencies in the channel source configuration.
The decoder monitors the state of the channel for a CONTROL state.  If
the state does not stay in the CONTROL state for a user-specified delay
value, then the decoder rotates to the next frequency in the list.  This
behavior continues until the decoder state once again changes to CONTROL.

This is NOT a 'scanner' feature.
2019-01-06 06:59:04 -05:00
Denny Sheirer
b67d4d92dc Identifier Framework and Message/Event Processing Overhaul (#455)
* WIP on new P25 message framer.

* WIP on new P25 message framer.

* Adds new 1/2 and 3/4 rate trellis decoders.  Still trying to chase
down why there is a sync pattern mismatch in the NID buffer queue.

* WIP - new p25 message framer works correctly now.  PDU's are dectected
and decoded using the 1/2 and 3/4 rate trellis decoders.  Packet
Sequences are assembled.  Need to add a new packet sequence message
factory that can detect Motorola Auto Registration Service (ARS)
formatted UDP/ID packets and SNDCP command packets.

* WIP - removes nullify on channel results queue.

* WIP - updates message framer for TSBK 1/2/3 processing.

* WIP removing P25 sync pattern and nid bits from all message parsers.

* WIP - merges identifier framework branch changes into this branch.

* WIP on updating link control words to new format and identifier framework.

* WIP - implements rest of link control words for extended formats

* WIP - initial work on ISP/OSP TSBK message restructuring.

* WIP - adds more TSBK ISP and OSP messages

* WIP - finished updating most of the TSBK ISP and OSP messages.  Converted
all messages to no longer include the NID (nac + dataunitID) so that
each message can simply hold the parsed values.  Removed AliasList as
an argument to each message and updated all messges to use the new
IIdentifer and IAPCO25Channel interfaces.

Removed legacy TDU and LDU link control messages and replaced with a
single LinkControlWord class hierarchy.

P25 decoder state is not yet updated for the new message structure.

PDU message parsing is not fully implemented.

* WIP - adds some Multi-Block trunking control messages with Alternate
and Unconfirmed formats.

* WIP - Fully implements AMBTC and UMBTC PDU message parsers.

Some package restructuring.

* WIP - Resolves Link control parsing in LDU1 and 2 messages.

* WIP - finishes updating TSBK and Link Control messages.  Adds support
for moto link control messages for patch groups.

* WIP - finishes updating TSBK and Link Control messages.  Adds support
for moto link control messages for patch groups.  Adds support for moto
ARS service, IPV4 decoding, and UDP/IP packets.

* WIP - finishes SNDCP packet data with header parsing.  Compressed IP or
UDP headers are not yet supported, but are logged as such.

* WIP - converts all talkgroup identifiers to integers and updates
alias list to create a per-protocol map of talkgroup id's to alias.

Inserts a legacy talkgroup (ltr, p25, passport, mpt1327, mdc, etc.)
conversion utility to convert existing legacy (string) talkgroups to
new integer talkgroup format.

Creates an audio packet manager to insert metadata into audio packets
before streaming packets for playback, recording, and/or streaming.

Creates identifier collection to manage current identifiers in each of
the channel and decoder states.

Creates simplified channel metadata to maintain the now playing display.

Moves channel attributes (alias list, system, site, name) as configuration
identifiers in the channel state.

Many other refactoring and updates.

* WIP - numerous updates to push use of identifier collection throughout
the system.  Updates the channel metadata and audio packet processing
logic.  Implements a large portion of the P25 decode state processing.
Updates traffic channel management.  Adds user preferences for timestamp
and identifier formatting, however doesn't add a user interface yet.

* WIP - initial implementation of user preferences editor window.

* WIP - updates preferences editor window to close and dispose window but
retain javafx event thread running.

* WIP - fully updates p25 decoder state and traffic channel processing to
use the new identifier framework.

Cleans up channel event processing and removes channel model as the sole
broadcaster of channel events.  Channel processing manager now listens
for all start/stop events and requestors dispatch event directly to the
channel processing manager.

Resolves issue in airspy that was causing user interface to lock-up.  The
issue appears to occur when the dongle is plugged into a usb port that
can't fully support the data rate.  sdrtrunk now recognizes these errors
and warns the user that they should use another usb port.

* WIP - updates alias action manager and adds new talkgroup range alias identifier.

Updates playlist to incorporate a version number so that the playlist
updater only runs when needed, to update a playlist to the correct
version format.

Updates user preferences to use the google event bus to broadcast
preference update notifications to remove the need for listeners to
register directly on the user preferences instance.

* WIP - updates alias id editors to flag invalid values and moves legacy
alias ids to legacy package.

Updates event logging configuration to add traffic channel decode events
and decoded message logging.  Removes binary message logging since that
is now replaced with demodulated bitstream recording.

* Removes system properties from user preferences.  Preferences are stored
in the OS-dependent settings store (windows - registry)

* Updates MapService to use new PlottableDecodeEvent instead of monitoring
all of the decoded messages.

Updates Fleetsync decoder and related messages to identifier framework.

* Updates LTR-Net, Fleetsync and LJ1200 decoders to new identifier
framework and adds support for user preferences for formatting of
LTR-Net and fleetsync talkgroup identifiers.

Breaks LTR-Net messages into various message types and uses a new
message factory.

Removes alias list from message processing for ltr-net, fleetsync and
lj1200.

* Updates LTR-Standard messages to Identifier framework.

* Removes Plottable and IPlottable from codebase.

* wip

* WIP on MPT-1327 messages.

* Updates MPT1327 decoder to identifier framework and new traffic channel
manager.  This decoder still needs to be updated with a new message
parser factory and a sync detector like what is now used for P25.

* Updates MDC1200 decoder and message to identifier framework.

* Updates Tait1200 and Passport decoders to identifier framework.

* Merges changes from master branch.

* Removes legacy alias support classes.  Updates passport message processor
to only pass valid messages.  Adds support to playlist updater for
converting passport mobile ids to become passport talkgroup values.

* Updates P25 decoder state and channel state to better track allocated
traffic channels.  Resolves issue in timestamp manager for trackig
message timestamps. Resolves issue in airspy tuner that was causing
the tuner to stop sending samples to the application.

* Update P25 Decoder state to process SNDCP management messages and
PDU messages.

Updates P25 activity summary to display network and site details.

Resolves issue with overlay panel that prevented enabled channels from
rendering correctly when zoomed in.

* Creates a new FilePreferences as part of the user preferences to begin
the transition of SystemProperties over to user preferences and consolidate
file preferences in one location.

Updates playlist manager to use the new file preferences and to use
default.xml as the new default playlist name, following conversion of
a playlist_v2.xml format to the new format.

In the near future, the user will be able to edit file locations and to
create/use other playlists.

Resolved an issue with all decoder states where not all identifiers were
being included in decode events.
2018-12-24 09:08:34 -05:00
Denny
d752917073 Resolves #427. Moves the module(s) reset operation to the stop() method
so that the modules are reset after they are shut down, in order to
prepare for processing chain reuse.

Previously, the modules were reset upon startup, but after any traffic
channel metadata had already been transferred to the channel state,
causing the metadata to be lost and allowing initial audio packets to
stream without any metadata and related streaming/monitoring rules.
2018-09-20 04:01:45 -04:00
Denny
5f8f2ec330 Resolves #393 - Adds support for recording demodulated (raw) bitstream
buffers.  None of the decoders currently support this yet, but the P25
will be updated to provide bitstream output for recording.

Renames the ReusableBuffer class to ReusableFloatBuffer for
consistency.
2018-08-11 08:02:58 -04:00
Denny
ad560db5ea [WIP] Removes all usage of Buffer, RealBuffer and ComplexBuffer. 2018-06-30 06:54:36 -04:00
Denny
6f1ce79461 [WIP] Updates the AM decoder module.
Removes a number of unused classes in an effort to remove RealBuffer
usage across the codebase (has been replaced by ReusableBuffers).
2018-06-30 05:37:13 -04:00
Denny
df1bc1031e [WIP] Updates AudioPackets to be ReusableAudioPackets. 2018-06-29 06:53:03 -04:00
Denny
a898be265f [WIP] Updates the LTR-Standard and LTR-Net decoders to use a new LTR
decoder with a zero-crossing symbol timing error detector.  The new
decoder is optimized for 8 kHz FM demodulated audio produced by the
AudioModule.
2018-06-02 08:47:48 -04:00
Denny
341e740e77 [WIP] updated the 2 channel synthesizer to use a more SIMD friendly
filter structure.  Updated the channel results array buffer to produce
reusable buffers.

This has dropped the overall memory usage considerably when profiling.

Resolved issue in the processing chain where polyphase channel sources
were not being stopped and were stacking up in memory.
2018-05-10 08:08:20 -04:00
Denny
488b2e02ce [WIP] Work continues on resolving issues with the 2-channel synthesizer
that is currently up/down converting the signal of interest, but the
synthesizer is not correctly combining the original two channels.

Some experimentation with the tap count for the channelizer indicates
that we can cut the tap count in half and still have decent decoding
on the P25 decoder when paired to an aligned channelized output.  The
2-channel synthesized output decodes partially, but needs more work.

Resolved issue with channel gain in the channelizer that was making the
sample values so small that they were registering as zero when converted
from float to 16-bit int value in the complex wave recorder.
2018-04-29 06:19:39 -04:00
Denny
e395d737f8 [WIP]-39 updates to resolve issue with stopping channel streams. 2018-04-22 04:44:35 -04:00
Denny
60ffb18cd9 39 [WIP] cleans up the reusable buffers and creates both real and
complex variants.
2018-03-25 09:13:03 -04:00
Denny
f2f2c92afe [WIP] Implements reusable sample buffers across all components. This
produces a significant reduction in memory usage, especially for tuners
like the airspy and hackrf that produce 10/20 MSPS sample rates.  This
is observed to be around 66% reduction in peak memory usage and provides
a more stable memory utilization across time reducing stress on the
garbage collector.

Use of these reusable memory buffers will be pushed further down into
the processing chain modules to ensure we keep new object creation
to the lowest levels possible.
2018-02-03 10:05:16 -05:00
Denny
236df8f3f4 Merges from master branch. 2017-12-27 10:10:51 -05:00
Denny
9316599dec Updates pull request from Roman Tsypuk to convert the build system from
ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.
2017-12-17 07:28:06 -05:00