[FFmpeg-user] Dithering, debanding while transcoding

[Stefano Sabatini]

On date Tuesday 2011-03-29 13:19:55 +0200, Robert Krüger encoded:
> 
> Hi,
> 
> I have raw footage (H.264, 8 bit, yuv420) which has very minor
> compression artifacts in some areas, which I would like to tweak a
> little (dithering, debanding) while transcoding it to XDCAM 422
> (MPEG-2). Are there any libavfilters or advanced command line
> options that might help?

Did you try gradfun?

But note that:
|This  filter is designed for playback only.  Do not use it prior
|to lossy compression, because  compression  tends  to  lose  the
|dither and bring back the bands.
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