xxd reads standard input when given no file operand, so the - is
redundant. It also breaks builds that provide xxd through a partial
reimplementation such as OpenWrt's scripts/xxdi.pl, which treats - as a
file name and exits with
xxdi.pl: Unable to open -: No such file or directory
xml_plist_codegen.sh does not check for that failure, so the generated
plists/get_info_response.c ends up with an empty byte array and AirPlay 2
answers GET /info with nothing.
- 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!
Kel Modderman
Mike Brady