nils/shairport-sync
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34 Commits
Author SHA1 Message Date
Mike Brady 60143518c2 This squashed commit comprises a long series of improvements, bug fixes, optimizations, and new feature additions: 
- 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!
 2025-02-23 13:31:17 +00:00
Mike Brady 734f93a76f Add a new call to the backends -- prepare_to_play() -- to give them advance warning that audio will be coming soon. Sent when the first frame is received. 2024-08-08 16:08:55 +01:00
Mike Brady fd880056fb Squashed commit of the following: 
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
 2022-09-12 15:19:52 +01:00
Mike Brady 56bef8e7dd Use CLOCK_MONOLITHIC_RAW to avoid NTP effects, report raw and corrected timing from audio_alsa. Clean up statistics. Stop watchdog timing out AP2 sessions. CLean up some debug messages. 2021-11-28 16:08:48 +00:00
Mike Brady 14bfba2724 Add code to check divisions and mods for a potrntial divide by zero problem. MAy cause SPS to terminate but leave a log message. 2021-11-21 21:47:32 +00:00
Mike Brady cd9da86fc3 Add a 'stats' function to the audio back ends to replace the 'rate_info' function. Zero all except the alsa back end. 2021-11-20 13:59:16 +00:00
Mike Brady 5f8e6e3989 attempt to increase the precision of the FPS timing 2021-11-20 12:14:23 +00:00
Mike Brady ca56287254 Make the first output backend in the list of backends the default and make its name the default output_name. Clang-format everything 2020-09-03 09:53:13 +01:00
Mike Brady c8b0be30b4 find . \( -name \*.cpp -or -name \*.h -or -name \*.c \) -exec clang-format -i -style='{BasedOnStyle: llvm, IndentWidth: 2, ColumnLimit: 100}' '{}' \; 2019-06-19 19:06:54 +01:00
Mike Brady 83c0405d03 Add automatic bit depth and speed selection for alsa devices. Set rate and format to "auto" by default. Always look for the greatest bit depth, but the lowest multiple of 44,100. 
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".
 2019-05-07 10:19:04 +01:00
Mike Brady c5ff0dfed0 Rebuild the volume control calculations. Implement software mute. Try to delay alsa initialisation as long as possible. 2019-01-30 09:24:10 +00:00
Mike Brady aa5698fce2 Remove the preflight call - don't seem to need it. 2019-01-27 15:53:36 +00:00
Mike Brady 2e4428538d Add an "active" mode that can time out after a period -- 10 seconds by default -- after play ends. 2019-01-21 21:43:55 +00:00
Mike Brady caf06c5aba Add the idea of a preflight message to tell the backend that frames will be coming... 2019-01-07 17:34:50 +00:00
Mike Brady 1b18f45fac Clang Format Cleanup 2018-09-09 20:43:01 +01:00
Mike Brady 8cabb16f25 Initial very rough attempt at a jackaudio backend. 2018-08-31 12:39:18 +01:00
Mike Brady 76c5dd9285 Stop using SIGUSR1 for cancelling threads, use pthread_cancel and friends instead, fix some memory leaks, add accurate ouput rate calculation to statistics, add "quit" verb to MPRIS and native d-bus interfaces. Probably still buggy. 2018-07-30 10:07:11 +01:00
Mike Brady ea20840d6c Make the play function return a status (ignored for the present). Clean up audio_alsa by removing all the die calls and placing the alsa_mutex calls in pthread cleanup routines. 2018-07-29 13:45:42 +01:00
Mike Brady c85e7e05d1 Add a frames per second output. This should be exact if the machine is connected up to, say, an NTP time service. It uses CLOCK_MONOTONIC time. 2018-07-28 19:02:02 +01:00
Mike Brady 6d66b2ed33 Stop erroneously assuming that the buffer passed to the player is not changed -- sometimes it is, it seems. Tidy up some typing. 2018-05-07 22:00:01 +01:00
Mike Brady b7864b4ecf Move common audio backend settings like buffer size and offsets to the "general" settings stanza. Improve the resync code a little. 2017-07-21 12:29:03 +02:00
Mike Brady 064bd293c5 Tidy up with a clang-format 2016-09-11 10:35:53 +01:00
Mike Brady 01e5128507 Add ability to set output format and output rate 2016-08-19 12:51:15 +01:00
Mike Brady 1e408d1b7c Make the delay() procedurec return a frame value, positive or negative and a separate status value. Also, don't ever try to change the buffer size. 2016-03-29 16:06:26 +00:00
Mike Brady 82a033e590 Use type long for delay as it corresp[onds with the alsa type used 2016-03-29 12:04:34 +00:00
Mike Brady 71ed15b31e delay() should return a signed integer, duh. 2016-03-26 21:34:33 +00:00
Mike Brady 4c70223f5a Work in progress, doesn't compile 2015-11-05 18:03:58 +00:00
Mke Brady 87a0475c16 Reformat using clang-format. 2015-06-01 23:16:50 +01:00
Mke Brady 181d6d4395 Remove one parameter from the init function of audio back ends. 2015-06-01 21:31:41 +01:00
Mike Brady 9cfc61790e Pass in libconfig info during init. 2015-05-04 17:14:15 +01:00
Mike Brady a2790fc102 Improve metadata output -- maybe it works reliably now. Add call to get audio parameters from back ends, to be able to give volume metadata. 2015-03-16 11:11:54 +00:00
Mike Brady 459cdd94ce add flush and delay functions 2014-04-30 20:29:26 +01:00
James Laird 9b33878c59 audio: output selection functionality 2013-04-01 21:43:24 +11:00
James Laird a2fb5d219d Refactor and rewrite. 
Perl script is removed in favour of C. Stale documentation and initfiles
are removed for now also.

C interface works, but still needs work (for example, mDNS is missing) -
see TODO.
 2013-04-01 18:57:08 +11:00