[FFmpeg-devel] [PATCH v6 3/9] avformat: add vvc raw demux

[Nuo Mi]

>
>
>
> > All h266 conformance test clips will not detect as other formats. But if
> > you have a well-designed clip, it may be. This is normal case for a raw
> > bytestream detector.
>
> I'm mainly asking because the H.264 probe function does check some PS IDs
> to have a bit more confidence that it is looking at an H.264 stream.
>
> If the collision cases are rare such that they will never overlap except
> with crafted streams then this is probably fine.
>
H.264 and H.265's seq_parameter_set_id are ue(v). So you can check the max
value.
But for H.266, the sps_seq_parameter_set_id is u(4). and the range is 0 to
15. It's no way to check it's valid or not.
We can check sps_pic_width_max_in_luma_samples
and sps_pic_height_max_in_luma_samples, but it's not so meanful.


> - Mark
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