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.
the spectral display to be slow to reflect changes to tuner settings.
Changed the max size of the sample queue based on the highest rate tuner
sample rate 10 MHz (airspy) and the lowest available spectral update
frame rate (12). Sized the buffer queue based on the maximum number of
buffers that should be available per DFT processing iteration. If the
queue backs up, new buffers will be discarded until the DFT processor
consumes the queue and catches up.
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.
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.
Potential existed for the audio output class to become unsynchronized
with the underlying source data line and attempt to perform a blocking
write to the data line when the data line doesn't have the capacity to
accept the full buffer, and the data line is not started. Thus,
playback could potentially stay in a persitent blocked state.
Refactored Mono and Stereo audio output implementations to push the
audio buffer queue processing into the parent abstract class.
AudioManager was updated to remove the last time active timestamp out
of the audio manager and down into the audio output to remove duplicate
timestamp accounting.
the NID crc check but uses an unrecognized data unit id, it will now be
broadcast as NID:UNKN, but allows for detection of new DUID types when
we have a large number of occurances of unknonwn duid types.
saturation.
Each tunerchannelsource was sharing a thread pool and as the processing
load increased, the thread pool was not expanding and the processing
tasks were backing up, causing the buffers to grow with unprocessed
data.
Changed so that each tuner channel source is handed a thread pool to use
for processing incoming sample data. Processing chain maintains the
thread pool and starts the channel source. This allows traffic channels
to reuse the thread pool across multiple iterations.
AudioManager connection class monitoring of the playback state. Adds a
line listener to monitor when the line is started/stopped and responds
accordingly.
Removes squelch control from mono and stereo audio playback components
which was a holdover -- squelch state is now managed within the
audio component for each processing chain.
with TO/FROM identifiers displayed, but no audio playing. This occurred
when the decoder sent a few audio buffers which caused the display to
update from the metadata, however the decoder stopped sending buffers
and the audio start threshold is never met. Clear display is invoked
upon audio stop, so the panel was never started or stopped or cleared
until the next call came in.
Changed to store the incoming metadata and only display it once the
audio playback starts and reset the display once the audio stops.
state enumeration is designed to block these attempts which can occur
when a non-standard call sequence of events occurs, normally due to
intermittent decoding.
starting/stopping the monitor for each call to simply leaving the
monitor task running continuously. Was causing issue with scheduled
thread executor not shutting down the task in a timely manner -- new
approach should avoid start/stop related issues altogether.
Updates P25DecoderState with reordering of timing of when we send
updates for the TO/FROM identifiers so that the audio manager receives
up-to-date metadata and hopefully resolves issue with 'Do Not Monitor'
talkgroups being monitored by the audio manager.
Updates the AudioManager with a try/catch block around the processing
task so that we can catch any audio processing exceptions that occur
during the timer task and might get suppressed by the scheduled thread
executor.
Resolves issue in tuner controller where controller was not releasing
sourced tuner channels, preventing re-tuning to other frequencies.
Resolves issue with channel timeout on MPT1327 monitored traffic
channels
