PipeWire 0.3.64 (2023-01-12)

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

Highlights

• Clear old buffer memory on ports to fix some SIGBUS errors.
• It is now possible to assign custom port names to the ports from an adapter. This feature is helpful to those who use a multichannel interface with long-term connections. This way they can label each port with its designation, such as an instrument name or anything else to be displayed in a patchbay or DAW.
• Fix some issues with node suspend and quantum and rate calculations.
• Fix some regressions in pulse-tunnel and RTP-source adaptive resampling that could cause synchronization problems.
• UCM devices now also have a Pro Audio profile.
• NODE_TARGET (with the object.id) is now deprecated, use TARGET_OBJECT (with the object.serial, which is not reused and can avoid races).

PipeWire

• Clear all peer input port buffers when suspending. This fixes some SIGBUS errors when some plugins were using old memory. (#2914)
• Fix a case where nodes that were not supposed to be suspended, were kept suspended on a rate change. (#2929)
• Fix an error in the quantum and rate calculations that could cause nodes to run with wrong quantum and rates when multiple rates were allowed. (#2925)

Tools

• pw-dump will now sort dictionaries to make it easier to compare different outputs.
• Improve output of pw-reserve.
• pw-loopback uses TARGET_OBJECT so you will need to use the serial id (or better the name) as the target instead of the object id.

modules

• The filter-chain modules has seen some cleanups, refactoring and optimizations in the various DSP functions.
• The ROC module now supports setting a custom samplerate.
• ROC 0.2.X is now required.
• The pulse tunnel and RTP source were not updating the rate field correctly which could cause synchronization problems. (#2891)
• The filter-chain now supports an arbitrary number of control properties. (#2933)
• It is now possible to assign custom port names to the ports from an adapter with the PW_KEY_NODE_CHANNELNAMES.
• Support was added for capture and playback props in echo-cancel. (#2939)

• The ACP code now has an option to set the probe samplerate. (#1599)
• UCM devices now also have a Pro Audio profile.
• Filtering of Step ranges is now implemented.

Pulse-Server

• The channel-map is now set correctly on the echo-cancel module.
• source_master and sink_master are now correctly handled in module echo-cancel.
• Fix a regression in DRAIN where resuming after a DRAIN would fail. This caused problems for espeak. (#2928)
• TARGET_OBJECT is now used to make it possible to use the indexes as a target.
• ladspa-source and remap-source can now also link to monitors.

• The ALSA plugin now handles the target.object correctly when set to -1. (#2893)

• The v4l2 replacement library now also follows symlinks.
• Support for getting and setting controls was added.
• Support for G_PARM was added.
• The environment variable PIPEWIRE_V4L2_TARGET can be used to force an application onto a specific camera.

Bluetooth

• Fix compilation without ldac_abr.
• Fix a missing brace in CIND reply. This could cause some devices to fail.
• Fix configuration of the initial latency.

GStreamer

• The device provider now supports setting an fd so that it can connect to PipeWire sessions from the portal.
• DMABuf support was re-enabled in gstpipewiresrc.