[FFmpeg-user] error concealment from ffmpeg/x264 for h264 videos

Michael Niedermayer michaelni at gmx.at
Sat Oct 1 19:18:47 CEST 2011

On Fri, Sep 30, 2011 at 10:32:15PM -0700, HardikSharma wrote:
> Hi guys,
> I am producing error in h264 stream by dropping 5%, 10% and 20% slices from
> JM and ffmpeg encoded streams. I calculated PSNR for both and JM is like
> more then 40% better then ffmpeg. I tried to get JM and ffmpeg to as close
> as possible in specifications. 
> The bigger concern is in ffmpeg, it even dropped some frames when I
> introduced error in 264 stream but JM didn't drooped any frame. Am I
> ignoring any crucial point? or is it suppose to be like this. That's why I
> want to know what kind of conceal FFmpeg uses so that I can figure out
> something for this. Please post your suggestions.    

Please provide the h264 stream you use so we can reproduce this

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is what and why we do it that matters, not just one of them.
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