Commit Graph

18 Commits

Author SHA1 Message Date
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
2c6e35c739 Work in progress.
-Removed channel collection panel since panels will only have 1 channel
now
-Resolved issue with channel list and channel selection events
-Fixed some of the classes from the rebase to master branch
2016-02-15 07:10:41 -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
575197bd98 Interim checkin for call recording. 2015-09-11 14:01:47 -04:00
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
2c4b3ab1b5 P25 - enhancement for LSM demod phase lock errors - adds new sync pattern detectors to detect Costas Loop phase lock errors and apply immediate correction to enable accurate symbol slicing. 2015-04-26 16:58:25 +00:00
dennis.sheirer
c12123a81b P25 - work in progress to improve CQPSK LSM audio output. Audio output is still choppy but greatly improved over the previous test release. 2015-04-25 23:21:20 +00:00
dennis.sheirer
7d948c4af4 P25 LSM work in progress. CQPSK demodulator is working now, but there is a slight phase error in the constellation (it's rotated right by 5-10 degrees). I'm not sure if this is an error coming from the decoder, or if it's reflecting a phase imbalance from the source tuner i/q data. 2015-02-16 23:14:23 +00:00
dennis.sheirer
a65e821e85 P25 LSM decoder work in progress. Adds a CQPSK decoder based on Max's (KA1RBI) scope.py and gardner loop.
The CQPSK decoder is starting to take shape, but needs more tweaking and testing.  It's not keeping a good lock on strong P25 signals.  I have to add some more features to the intrumentation package to allow me to visualize the internals of the CQPSK decoder so that I can get a better sense of what needs fine tuning.

The CQPSK decoder may work for anyone that wants to sync the repo and run the build script.
2015-02-10 00:42:08 +00:00
dennis.sheirer
d34abdd2fa Refactoring to use COMPLEX and REAL sample terms throughout 2014-10-31 13:58:20 +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
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
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
3dfedcf8d1 Initial code check in continued 2014-04-26 19:48:24 +00:00