Comment 13 for bug 1708922

Further information: ffmpeg stops after it detects broken frames, with
error messages like here:
https://superuser.com/questions/1048637/ffmpeg-video-recording-freezes-after-invalid-data-found-when-processing-input

[video4linux2,v4l2 @ 0xed0c353440] Dequeued v4l2 buffer contains 32533
bytes, but 614400 were expected. Flags: 0x00012001.
/dev/video0: Invalid data found when processing input
Finishing stream 0:0 without any data written to it.

ffmpeg behaviour is already in a 2 year old feature request which applies
here as well: https://trac.ffmpeg.org/ticket/4795

This confirms that the kernel uvcvideo driver is the source of the problem
- it delivers the broken frames to ffmpeg.

Kai-Heng Feng <email address hidden> schrieb am So., 13. Aug. 2017
um 17:25 Uhr:

> Okay, the error happens in avcodec_send_packet() or
> avcodec_receive_frame().
> Needs to find out what ffmpeg did here...
>
> ** Also affects: ffmpeg (Ubuntu)
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1708922
>
> Title:
> uvcvideo module does not work with Dell XPS 12 webcam
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/1708922/+subscriptions
>