[FFmpeg-devel] Deblocker for VC-1

Kostya kostya.shishkov
Fri Jul 11 11:46:20 CEST 2008

On Fri, Jul 11, 2008 at 12:00:26AM -0700, faisal mehmood wrote:
> Hello experts
> Why there is no deblocker implementation for VC-1 in FFmpeg.
> Thanks in advance.
> regards.

I'm one of the persons who did not implement deblocker for VC-1 in FFmpeg.
And if you look hard enough, there are no deblockers for other video
codecs as well. There are filters for block edges implemented, because
they are in codec specification and images would be distorted otherwise.

As for general "decoded video is too blocky, why there's no deblocking
filter implemented" my answer would be:
    For blocky video there are general deblocking filters.

Honestly, if you want to use deblocking, then turn on deblocking filter
in your player. Or contribute postprocessing filter (based on libpostproc,
for example) to libavfilter.

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