Hou Qi bf87ad72e4 v4l2: drop frames for those dequeued buffer with error flag
Some frames are dequeued with error flag, which may cause AV unsync if decoder
does not drop them as soon as possible. So add "output-error-dequeued" and
"capture-error-dequeued" signal for v4l2 to drop such frames.

Fixes #3031

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5479>
2025-04-18 14:14:54 +00:00
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