pipewire: update 0.3.68 -> 0.3.70

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

  - Fix a regression in the scheduler that could keep some nodes IDLE.
  - Fix a regression in the biquad filters in filter-chain.
  - Fix a regression and potential crash in the ALSA mixer probing.
  - Fix a regression in pipewiresrc with timestamps that could cause cheese
    to record video with wrong timestamps.
  - Beamforming support was enabled in the echo-canceler.
  - pulse-tunnel and raop-sink will now proxy local volume changes to the
    remote end.
  - More bugfixes and improvements.

  - Fix a bug in the graph scheduler where some nodes might stay IDLE in
    some cases (like when connecting the source of the echo-canceler to the
    sink).
  - pw-metadata can now be created from the factory with initial values for
    the metadata. (#3076)
  - Conditions were added to the pipewire config file to make it possible to
    configure the access module and the exec sections.
  - Support was added in pw-stream to intercept and override properties for
    the adapter. This can be used to implement custom volume control, for
    example.

  - pw-metadata can now list all available metadata objects with the -l
    option.
  - A new pw-config tool was added to debug configuration file loading and
    parsing.

  - The webrtc echo canceler now supports beamforming. You can provide the
    coordinates of the microphones and let webrtc perform beamforming on
    the captured samples to improve quality and remove noise.
  - Fix a regression in the filter-chain with biquad filters. (#3161) and
    improve error reporting.
  - The pulse-tunnel will now proxy the volume changes to the remote end.
  - The RAOP sink will now send volume parameters to control the volume
    remotely. (#2061)

  - One ALSA commit was not correctly reverted and might cause crashes.
  - The ALSA sink and source now calculate the ALSA ringbuffer memory
    location more correctly wich might improve compatibility with some
    hardware.
  - v4l2 now sets the values of the controls in the Props param.

  - The echo-canceler aec_args are now parsed like they would be under
    pulseaudio.

  - More work on synchronizing BAP devices.

  - The GStreamer source can now renegotiate the format when it changes.
  - The GStreamer source now uses the BaseSrc clocking code to implement
    the clock and timing code.

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

  - Reverted the UCM changes, they seem to cause regressions causing audio
    to be muted in some cases.
  - Fix a regression in the scheduler where a driver node might not be marked
    runnable in some cases, like when echo-cancel is used. (#3145)
  - Handle links from the driver to itself. This makes the midi bridge work
    again. (#3153)
  - ALSA rate matching for sources was fixed. It would previously wait too
    long for rate matching and then cause drift. This should reduce
    crackling and stuttering whan capturing in low latency.
  - Fix the GStreamer clock to make cheese video recording work again. (#3149)
  - More fixes and improvements.

  - Fix a regression in the scheduler where a driver node might not be marked
    runnable in some cases, like when echo-cancel is used. (#3145)
  - Handle links from the driver to itself. This makes the midi bridge work
    again. (#3153)
  - Some man pages were improved.
  - Fix a potential crash when thread-loop is destroyed before the loop.
    (#3150)

  - A new raw biquad filter was added to filter-chain. You can manually set the
    6 parameters and you can use this to create custom filters per sample rate.
    (#3139)
  - The echo-canceler now supports different channels for the capture and playback
    streams.

  - A SB Audigy specific profile set was added to make better use of the
    controls. (#2934)
  - More ALSA IRQ based scheduling improvements.
  - ALSA rate matching for sources was fixed. It would previously wait too
    long for rate matching and then cause drift. This should reduce
    crackling and stuttering whan capturing in low latency.
  - The echo-cancel plugin API has a new method to make it possible to have
    different channels for capture, source and playback.
  - Reverted the UCM changes, they seem to cause regressions causing audio
    to be muted in some cases.

  - Many more BAP fixes and improvements. Devices are now created as a set
    and can be combined into one device by the session manager.

  - Fix the GStreamer clock to make cheese video recording work again. (#3149)

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

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