Commit Graph

14 Commits

Author SHA1 Message Date
Denny
bc8873de01 #90 [WIP] merged metadata management for channel state, decoder states and audio metadata into a new metadata class. The new metadata class is maintained for each decoding audio channel, or in the future, a decoding TDMA channel. Audio playback, recording and streaming all use the same metadata object for the channel. The list of channel processing gui panels have been deleted and channel processing status will now reside in a table where each table row is a metadata instance from the processing channel. The channel processing manager is responsible for adding/removing the channel's metadata instance to/from the metadata table. This allows the channel processing table to be the controller for the messages, events and channel spectrum views, keyed to the selected table row metadata.
I still have to clean up the gui components and wire in the table selection listeners.
2017-01-17 19:24:54 -05:00
Denny
d466ec9f5e Changes audio module decimation filter from lowpass to bandpass so that we can remove 0-250 Hz and any LTR signalling from the audio output. 2016-08-21 07:21:38 -04:00
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
f7f6c2fc3e Merges changes from master branch to resolve issue with CPU and memory
and constraints on scheduled thread pool saturation.  Adds a new
scheduled thread pool for each processing chain that the components in
the chain can share, versus the single shared pool exposed by the
threadpoolmanager class.
2016-02-15 15:47:14 -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
c405ddad96 Work in progress - program compiles and runs 2016-02-13 14:37:36 -05:00
denny
f04a6727b0 Resolved issue with channel label display in spectrum overlay panel
when a new tuner is added.

Cleanup of debugging messages.
2015-11-22 14:25:37 -05:00
denny
4025f88951 P25 and Airspy work in progress
Updated p25 decoder state to better track calls and call detects from
a trunked channel

Fixed issue with false detects on LDU2 encrypted call messages

Fixed Airspy channel allocation ... will allocate channels across the
entire bandwidth, minus 50 kHz on either end, and will not adjust the
center frequency if it's not needed.

Fixed traffic channel teardown -- traffic channels are immediately 
removed now, without a fade delay.

AudioMetadata - updated flag is now reset upon copying the metadata
2015-11-21 17:40:59 -05:00
denny
70e62ebb35 Adds airspy USB tuner support and updates the spectral display
component.

-Airspy supported with 10 and 2.5 MSps sample rates.  Additional
decimation may be added later.

-Spectral display updated to include smoothing and filtering options.

Note: the decimated output of a tuner channel from the airspy is
48,076.9 samples per second, versus the normal 48 kHz decimated rate.
This is 1.0015 times the normal rate and doesn't appear to impact the
decoders or audio processing.  Therefore, no fractional resampling has
been added.
2015-11-07 08:18:41 -05:00
denny
9c69733034 Decouples DecoderState from the Decoder and makes DecoderState inherit
from Module so that Decoder can function independent of DecoderSTate and
DecoderState can more cleanly interface with other modules. 

Resolves issue with LTR-type decoders where the AudioModule was
filtering demodulated audio buffers before the decoder received the
audio - demodulated audio buffers are now copied before creating
AudioPackets.
2015-09-26 05:45:34 -04:00
denny
95c38df812 Resolved issue with delayed event log writing ... added forced flushing
after each event write.
2015-09-19 20:02:26 -04:00
denny
c7227ca780 Work in progress 2015-09-14 21:31:26 -04:00
denny
575197bd98 Interim checkin for call recording. 2015-09-11 14:01:47 -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