Cheese freeze when recording video with pipewiresrc

[Bin Li]

[Question Summary]
Use Cheese to record video, and screen will hang during recording.

[Reproduce steps]
1.Preload Ubuntu 22.04.1 LTS.
2.Open Cheese and start to record video.
3.Stop recording.

[Expected result]
Record video smoothly and play video in Cheese.

[Actual result]
The recorded video page stops, recording is often different from the actual.

[Bin Li (binli)]

At /usr/share/pipewire/media-session.d/media-session.conf, the gst-device-monitor-1.0 Video/Source change from pipewiresrc to v4l2src, after reboot, this issue is gone.

[Bin Li (binli)]

After disabling the pipewire, it works fine.

$ systemctl --user disable --now pipewire pipewire-media-session pipewire.socket

[Daniel van Vugt (vanvugt)]

Maybe related to bug 1987631?

[Bin Li (binli)]

@daniel,

 The work around didn't work for me.

  cd ~/.cache
  rm -rf gstreamer-1.0

[Robie Basak (racb)]

Possibly fixed in jammy-proposed with bug 1996148. If this fixes this for you, please let us know.

[Bin Li (binli)]

Hi Robie,

 Cheese issue does not have improvement with the proposed pipewire. The fail rate is about 8/10. Thanks!

[Matthew D. Mower (mdmower)]

@binli - I encountered this bug while testing lp:1987631. In my case, the good part of the recording is preceded by a still frame that lasts roughly the amount of time since the system was booted. For example, if I start recording in Cheese 2 minutes after I reboot, then I get 2 minutes of frame 1 followed by good recording.

This issue exists for me with pipewire 0.3.48-1ubuntu1, 0.3.48-1ubuntu2, and 0.3.48-1ubuntu4 (i.e. your patches in lp:1987631). So, it doesn't seem to be a regression introduced by 1ubuntu2.

I've reproduced this on two computers with the following cameras:
13d3:5405 IMC Networks Integrated Camera
046d:082d Logitech, Inc. HD Pro Webcam C920

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.