[FFmpeg-devel] [RFC] filter_mb_fast

[Jason Garrett-Glaser]

Do we know under which cases filter_mb_fast is not bit exact?

I heard that it might not be in cases of duplicated reference frames
or something of the sort, but I haven't gotten any sure information.

One though of mine is that--AFAIK--filter_mb_fast uses the same logic
as x264's deblocking, so we could easily activate it for now for at
least x264 streams, knowing nothing else about why it isn't bitexact.

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