[FFmpeg-devel] [PATCH] libavdevice/v4l2: Return EAGAIN when receiving a frame of unexpected size

[Nicolas George]

Alexander Strasser (12019-03-17):
> I had found that when capturing video for some hours from
> USB Camera-B4.09.24.1 (Manufacturer: OmniVision Technologies, Inc.),
> sometimes when invoking the ioctl DQBUF, the returned buffer is not
> filled with the size we expect for the raw video frame.

Which seems like a kernel bug, does it not?

> To avoid this, return AVERROR(EAGAIN) instead.

Returning EAGAIN when not in non-blocking mode is invalid. FFERROR_REDO
would be the correct code in that case.

Regards,

-- 
  Nicolas George
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