2. Clean up get_audio_buffer_size_and_occupancy() and replace it with get_audio_buffer_occupancy().
3. Add a new general setting: audio_decoded_buffer_desired_length_in_seconds for managing the size of the player buffer queue when the source is buffered audio. Default is 0.75 seconds so that we can step back up to that time if older buffers appear.
(1) to be multithreaded,
(2) to work on multichannel audio and
(3) to work on 48k and 44.1k audio.
Allow multiple impulse response (IR) files with a new setting: "convolution_ir_files"
When convolution starts, Shairport Sync will look for an IR file with a sample rate
matching the input (44.1k or 48k) and channel count.
If one can't be found, it will look for a single-channel IR file with the same rate.
It will always choose the first match in the file list supplied "convolution_ir_files".
Allow multithreading -- use the "convolution_thread_pool_size" to set the number of threads to use.
Deprecate "convolution" -- use "convolution_enabled" instead.
Deprecate "convolution_max_length" -- use "convolution_max_length_in_seconds" instead.
Deprecate "convolution_ir_file" -- use "convolution_ir_files" instead.
Update corresponding D-Bus methods and properties.
Update the loudness code to work on 48k and well as 44.1k audio and with multichannel audio.
Deprecate "loudness" -- use "loudness_enabled" instead.
Update corresponding D-Bus methods and properties.
Fix a deprecated FFmpeg warning.
Update HiFi-LoFi FFT convolver to latest available.
- 48,000 frames per second operation,
- 48k lossless stereo, 5.1 and 7.1 surround sound
- Multichannel and multi rate operation on ALSA, PipeWire, PulseAudio, FreeBSD, stdout and unix pipe output backends.
Automatic, flexible and controllable output format (rate, sample format and channel count) selection.
Full FFmpeg integration to support transcoding, resampling, and new audio formats.
Better operation on lower powered devices down to e.g. Raspberry Pi B.
Reduced Docker image sizes with a slimmed-down FFmpeg library.
Enhanced timestamp handling for better synchronization.
Improved the sync error calculation.
A new "vernier" resampling and interpolation method for low-power CPUs.
Bug fixes and minor enhancements.
Note -- there are many breaking changes from previous versions of Shairport Sync!
This patch introduces modification to AirPlay attributes allowing AirPlay clients seeing only appropriate Endpoints of specific version of AirPlay protocol.
[Test]
Run two instances of shairport-sync - built for version 1 and for version 2.
TuneBlade recognizes only AirPlay version 1 instance running.
MacOS/iOS recognizes only AirPlay version 2 instance running.
Without that patch, both MacOS/iOS detect two endpoints at the same time. The TuneBlade detects only AirPlay version 1 since it doesn't support AirPlay version 2.
This patch introduces modification to AirPlay attributes allowing AirPlay clients
seeing only appropriate Endpoints of specific version of AirPlay protocol.
[Test]
Run two instances of shairport-sync - built for version 1 and for version 2.
TuneBlade recognizes only AirPlay version 1 instance running.
MacOS/iOS recognizes only AirPlay version 2 instance running.
Without that patch, both MacOS/iOS detect two endpoints at the same time.
The TuneBlade detects only AirPlay version 1 since it doesn't support AirPlay version 2.
On OpenBSD 7.4-current, failure to listen on the RTSP socket(s) results
the `rtsp_listener_thread` being pthread_cancel(3)'ed twice, once through
`rtsp_listen_loop()` and again via atexit(3) handler `exit_rtsp_listener()`:
```
$ nc -4l 5000 &
$ nc -6l 5000 &
$ shairport-sync -c/dev/null
warning: could not establish a service on port 5000 -- program terminating. Is another instance of Shairport Sync running on this device?
Segmentation fault (core dumped)
```
```
Program terminated with signal SIGSEGV, Segmentation fault.
433 if (tib->tib_canceled == 0 && tid != 0 &&
[Current thread is 1 (process 290061)]
```
`die()` -> `exit(EXIT_FAILURE)` normally in this case, thus forgoing the
first cancel and relying on the atexit handler alone.
With Mike Brady.
to NULL and cleans up the bonjour flags, if appropriate.
Simplify the TEARDOWN handlers and the thress teardown functions by incporporating
the above code in the teardown_phase_two (for AP2) and teardown (fpr AP1) functions.
It means that closing a connection will block on the principal_conn_lock, so if
you have the principal_conn_lock, closing will not complete until you release it.
Maybe we need a principal_conn_acquisition_lock for that...
Mike Brady
Oleh Kuzhylnyi
Ryan Mounce
Klemens Nanni
