pipewire-0.3.59

[Bruce Dubbs]

New point version.

[Bruce Dubbs]

# PipeWire 0.3.59 (2022-09-30)

This is a bugfix release that is API and ABI compatible with previous 0.3.x releases.

## Highlights

• Fix possible wrong samplerate in loopback streams after suspend and rate switch.
• module-filter-chain can now adapt to the graph samplerate.
• Fix some potential stuttering and crackling in pulse-server.
• Add Bluetooth LE support. This requires experimental kernel and bluez support.
• The ALSA plugin has more options to control the buffer size. This can be used to work around high latency in davinci resolve.
• Many bugfixes and improvements.

## PipeWire

• Add audio capture example with volume meter.
• Fix a case where a rate switch would not suspend all the nodes of the driver first. This could cause wrong samplerates in streams.
• Fix a case where a node would be Paused while still added to the graph, causing potential crashes.

## Modules

• module-filter-chain and module-loopback now use the resample.prefill option to avoid buffering extra samples and causing unwanted latency when resampling is activated.
• module-filter-chain can now adapt to the graph samplerate.
• Improve module-raop to support the ALAC codec as raw PCM.
• Improve RTSP parsing to improve compatibility.

## Tools

• Fix 100% CPU in pw-cli monitor mode.
• spa-acp-tool can now be exited with ctrl-D.

## SPA

• Various libcamera fixes and improvements.
• Set stride on audioconvert output buffers.
• Make sure we always place the last requested size from the resampler on the buffers in pw-stream.
• Add resample.prefill option in the resampler to fill the history with 0 so that we don't have smaller buffers at the start.
• Make sure that when an overflow corrupts a POD, that it will always stay corrupted.
• Rate limit some ALSA warnings and reduce some unwanted warnings.
• Don't recalculate the audioconverter state for each pause/play.
• Fix some POD parsing inconsistencies and potential overflows.
• Add support for Asus Xonar SE.
• Fix Flush command handling. It should not stop playback.
• Refactor the peaks function and add some unit tests and optimizations.
• The channelmix has an optimized nXm converter and new unit tests.
• Normalization in the channelmixer was fixed.

## pulse-server

• The requested latency of record streams was reduced to fix some stuttering in Teamspeak.
• Tweak the max amount of bytes sent to a client.
• Improve maxlength calculations, this fixes some crackling noise with high samplerate and channel counts in some players (audacious).

## Bluetooth

• Merge Bluetooth LE support.
• Make sure we are backward compatible with WirePlumber.
• Fix some HFP and HSP AT command parsing.
• Use HFP by default over HSP.

## ALSA

• Increase max number of periods.
• The parameters handling was improved. There is now an option to set the buffer-bytes of the ALSA plugin.
• PIPEWIRE_ALSA can now be used as an environment variable to restrict the plugin formats and buffer size.

[Bruce Dubbs]

Fixed at commits

7599563171 Update to git-2.38.1 (Security update).
2696de67c4 Update to pipewire-0.3.59.