- 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!
Add three parameters to the backend play() function call -- (1) a flag indicating whether the samples are timed or not. If timed, (2) the timestamp and (3) the local time at which the first frame should be heard.
Update missing pipewire library message.
Makefile.am fix.
Update the SHM version and fix the SHM name so that it works with FreeBSD.
Remove redundant (?) AC_HEADER_STDC check.
Fix compilation and installation under FreeBSD -- changes to allow building in a separate directory broke the FreeBSD build process.
Add AC_CHECK_LIB for gcrypt in case PKG_CHECK_MODULES fails to find it.
Find gcrypt using pkg-config
Add code to detect when the RTSP channel goes idle for a period, and use it to reset clocks and timings, etc. so that SPS resumes correctly where the source has gone to sleep while playing a realtime stream and has subsequently woken up.
Don't exit if a UDP Clock Control packet is empty. Also check minimum packet size.
Remove some very experimental code which may cause memory and port leaks.
Strip file path from the filename used in debug messages, information messages, warnings and fatal error messages.
BB fix to Makefile.am -- overwriting the DBUS stuff with MPRIS definitions, duh.
Fix some problems building on FreeBSD and tidy up the use of the "sed" editor.
Fix some problems building on picore.
Fix an uninitialised variable
start using the "nqptp" SMI
Ending a RTSP session while running on OpenBSD using sndio backend causes the
following crash:
#0 thrkill ()
#1 0x000005208224403e in _libc_abort
#2 0x00000520821b77be in _rthread_mutex_trylock
#3 _rthread_mutex_timedlock
#4 0x0000051e0d54e2c0 in stop ()
#5 0x0000051e0d544e85 in player_thread_cleanup_handler
#6 0x0000052082243126 in _libc_pthread_exit
#7 0x000005209a158700 in sigthr_handler
#8 <signal handler called>
#9 _thread_sys_poll ()
#10 0x000005208223533e in _libc_poll_cancel
#11 0x00000520df54c9a0 in sio_psleep
#12 0x00000520df54cc1f in sio_write
#13 0x0000051e0d54e27a in play
#14 0x0000051e0d547fc0 in player_thread_func
#15 0x000005209a158cc1 in _rthread_start
#16 0x000005208223565a in __tfork_thread
The player thread is blocking inside sio_write() -> poll(2) while the thread is
being terminated. The stop routine tied to the same backend is invoked through
player_thread_cleanup_handler() which tries to acquire the mutex which it
already acquired before invoking sio_write(). Avoiding blocking writes would
require switching to async I/O which is quite an undertaking.
The fact that there's only one `struct sio_hdl *' instance in the compilation
unit sort of implies there can only be one player thread at a time. Therefore
fix the crash by only trying to acquire the mutex and continue as usual if it's
already acquired.
Clean up and improve the way lead-in sillence is used to give a more accurate sync time to the first packet of audio.
Allow very good sync to occur with 0.3 seconds of lead-in silence.
Improve the use of the buffer offset.
Format some other files.
Previously I have made spelling changes as caught by Debian's lintian
tool, which has a short list of common misspellings that it tests for.
This time I decided to run codespell against the source and fix all the
obvious problems it came up with. It also uses a list of misspellings
but it's much larger than lintian's, but also has some false positives
so I went over the list by hand.
The command I used to do check the source was:
git ls-tree -rz --name-only HEAD | xargs -0 codespell -L minimise,errorstring
Improve support for big-endian CPUs by adding support for explicit -endian formats, i.e. S16_LE, S16_BE, S24_LE, S24_BE, S32_LE, S32_BE.
For the "disable_standby_mode" setting, change "while_active" to "auto".
Mike Brady
Anton Lindqvist
Mike Brady
Mike Brady
Chris Boot
Tobias Kortkamp