Enable the AirPlay 2 build to operate an optional classic-AirPlay-only service or to gracefully degrade to classic AirPlay, as follows:
1. Add a new command-line option '-—service-type=<type>' and an equivalent configuration entry 'service_type = "<type>"' in the 'general' section of the configuration file,
where <type> can be "auto", "classic" or "airplay2":
1. "auto" (default) means that the service will be AirPlay 2 if NQPTP is running. If NQPTP is not running, classic AirPlay service will be provided instead, and in that case,
"(Classic)" will be appended to the default AirPlay service name visible to AirPlay clients like Apple Music, for example "RaspberryPi3B (Classic)".
2. "classic" means the service will be classic AirPlay (aka AirPlay 1).
3. "airplay2" means the service will be the modern AirPlay 2. In this case, as distinct from "auto", if NQPTP is not running, Shairport Sync will log an error and terminate.
2. In the systemd service file, NQPTP is now a "Want" rather than a "Require". If it's present, then it will be launched before Shairport Sync. If it's absent, Shairport Sync will launch anyway.
3. Improve the delivery of input format changes and emit 'sdsc' metadata when changes occur.
4. Emit new format information in the log if statistics is enabled.
Docker Changes
1. Support for linux/arm/v6 has been dropped, as Docker is no longer supported.
2. NQPTP is not started in the AirPlay 2 Docker image if '--service-type=classic' or '--service-type=airplay1' is in the command line options at the end of the docker run command.
The purpose is to ensure that ports 319 and 320 are left alone when the AirPlay 2 image is set to provide Classic service only.
Note that setting the configuration file 'service_type' to 'classic' will not prevent NQPTP from starting up -- you must use the command line option.
3. A new "dev" target has been added. It is a large image containing the custom-built FFmpeg library, NQPTP, Avahi and D-Bus along with the Shairport Sync source and
all necessary development tools. When started, Avahi, D-Bus and NQPTP are all installed and running. The bash shell has also been added and is entered.
Stability Improvements
Reorganise session preemption to fully terminate the existing session before starting a new one.
Don't delay closing the event port to wait for it to be closed at the client end.
Add a safe_socket_close() function to ensure sockets are fully closed. Use -1 to designate closed rather than 0, to prevent attempts to reclose sockets, causing mayhem.
Re-order FFmpeg decommissioning during teardown.
- 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!
Don't use strndup as old versions of OpenWrt don't seem to have it
Update FREEBSD.md
Fix comparison between old and new metadata strings by checking they have equal lengths as well.
Remove a redundant definition to prevent use on an uninitialised copy, clean up some of the less-used backends
Remove some unwanted and unused variable declarations from audio_dummy.c and audio_soundio.c
Add the -fno-common flag to compilation.
Treat the "mper" attribute as the 64-bit item that it is rather than a 32-bit item as hithereto. Output it as a hexadecimal number to correspond with the format of the track id obtained from AppleScript
Make changes to that it compiles under gcc-10 with -fno-common
Add a SIGCHLD handler to reap zombie processes generated after script invocations where wait_for_completion is set to "no".
Update and rename CONTRIBUTING.md to REPORTING ISSUES.md
Add a few more commands and clarify some text.
Change from talking about a server to talking about a client. Technically, e.g. iTunes is a client of Shairport Sync.
Store the UserAgent so as to recognise forked-daapd so as to always send a revision_number of 1 when asking for playerstatus of forked-daapd.
Add or update some of the copyright notices
Add the ability to set the volume directly to the D-Bus RemoteControl interface and to the MPRIS interface. Both use the recently-discovered ability to set the device_volume.
Merge in Pieter De Gendt's work on resampling on the jack backend.
Merge pull request #939 from pdgendt/feature/jack-soxr-resampling
Add SetAirplayVolume to the D-Bus RemoteControl interface.
Add SetVolume to the MPRIS interface.
Hook up the Volume property in the MPRIS interface.
Modify RemoteCommand in the D-Bus interface to return the HTTP status and response.
Change the type of airplay_volume from int to double in the metadata hub.
Add a few sample commands in the D-Bus document.
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
This backend allows shairport to run without having a heavy daemon such
as avahi or mDNSResponder running in the background.
ipv6 support is more or less experimental right now.
Mike Brady
Felix Schmidt
Mike Brady
Chris Boot
Mike Brady
Chris Boot
James Laird
Paul LietarandJames Laird