[Bug 796863] vaapih264dec: H264 parse stops if missing an SPS/PPS

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796863

Nicolas Dufresne (ndufresne) <nicolas at ndufresne.ca> changed:

           What    |Removed                     |Added
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                 CC|                            |nicolas at ndufresne.ca

--- Comment #1 from Nicolas Dufresne (ndufresne) <nicolas at ndufresne.ca> ---
Just a little more context, there is no concealment in VAAPI, we were passing
NULL frames to the codec until recently, which would randomly fails or harm the
accelerator. But now, in the current scenario, the decoder will fail for over
10 repeat, and as this decoder uses GST_VIDEO_DECODER_ERROR() error, it will
stop the pipeline on GST_VIDEO_DECODER_MAX_ERRORS (or whatever is configured).
I consider this API in GstVideoDecode harmful for live pipeline, which could
take several hundred frames to recover.

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