pipewire-0.3.7

[Bruce Dubbs]

New point version.

[Douglas R. Reno]

PipeWire 0.3.7

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

- Improved PulseAudio compatibility. The alsa card profile
  code was reused from PulseAudio. Devices now support
  all profiles, ports, jack detection, UCM and hardware
  mixers that PulseAudio implements. There should not
  be (almost) any difference between PipeWire and PulseAudio
  in how it presents and manages devices.
  Other missing API pieces such as the default sink/source
  and move_stream are implemented now.  At this point
  it should be possible to replace PulseAudio with the
  compatibility layer for those who want to try.

- Many fixes and improvements to the GStreamer elements.
  pipewiresrc now has the ability to periodically resend
  the last frame. This makes it possible for use-cases like
  screensharing to only update the screen on changes while
  still keeping the client side encoder busy. PipeWire
  elements can now also share a connection between them.

- Improvements to the bluetooth nodes. Dynamically adding
  and removing devices should work much smoother now. Many
  fixes and improvements to a2dp and sco nodes.

- Reduced memory usage by using less pre-allocated memory
  where possible. JACK clients are especially using less
  memory.

- Support for passive links is added again. These are links
  that don't cause the associated driver to become active.
  This makes it possible to have blocks of effects+sinks go
  to suspend as a group when not in use.

- Both consumers and producers can now ask to renegotiate
  the format. This required some cleanups and improvements
  to how links and node states were handled. More work is
  needed to implement more use cases.

- Important fixes to how memory is shared with clients. Memory
  was not correctly freed in all cases, which would result
  in reuse of the wrong memory.

- Support for planar formats for audio and video was added.

- Improved error handling in the session manager.

- Metadata is now used to manage default audio source and
  sink devices. The session manager will try to link streams
  to the default device. Changing the default device will
  move streams to the new device. PulseAudio and JACK layers
  respect the default source/sinks.

- Metadata is used to tag the desired output device for
  a stream and the session manager will move streams when
  the metadata changes. The PulseAudio layer uses this to
  implement the move_stream feature.

- Many fixes to the security modules. The session manager now
  has a flatpak module that grants permissions to flatpak
  apps. The PulseAudio layer now respects the permissions of
  objects. Security related properties are made read-only
  now. Different access modules can now coexist.

- The portal module has been split up in 2 parts:
   1) a part living in the daemon that monitors the portal
      dbus owner and tags all clients from this PID. This
      part has to run in the daemon in order to securely
      tag the clients.
   2) a part in the session manager that uses the permission
      store to manage the permissions of portal managed
      clients.

[Douglas R. Reno]

Fixed at r23413