[MEncoder-users] Huffyuv/ffvhuff artifacts

[Ivan Kalvachev]

On 7/2/11, Eric Wescott <wescotte at gmail.com> wrote:
> I'm currently using mplayer/mencoder SVN build 33766 (2011-06-28) and
> the same date build on ffmpeg. I've tried many other builds over the
> past year or so and have the same result.
>
> You can obtain the two source clips I use to demo the issue here
>
> https://pantherfile.uwm.edu/wescott/public/Tape047-0115.m2t
> https://pantherfile.uwm.edu/wescott/public/Tape047-0116.m2t
>
> Basically, I have a ton (70hours or so) of footage I'm using mencoder to
> perform a inverse telecine on. Then I'm taking this footage and
> transcoding to ProRes 422HQ for optimal performance in my NLE and
> composting software.
>
> Anyway, here is the method I've used
> FFVHuffy:
> mencoder Tape047-0115.m2t  -fps 30000/1001 -vf
> pullup,softskip,harddup,scale=1920:1080 -ofps 24000/1001 -ovc lavc
> -lavcopts vcodec=ffvhuff:aspect=16/9 -demuxer lavf -oac pcm -o
> Tape047-0115-FFVHUFF.avi
>
> Huffyuv:
> mencoder Tape047-0115.m2t  -fps 30000/1001 -vf
> pullup,softskip,harddup,scale=1920:1080 -ofps 24000/1001 -ovc lavc
> -lavcopts vcodec=huffyuv:pred=2:format=422P:vstrict=-1 -demuxer lavf
> -oac pcm -o Tape047-0115-HUFFYUV.avi
>
>
> Most of the files appear to be correct but maybe 5-10% of them have
> strange noise issues. The links above are two such examples. The strange
> thing is sometimes both produce the noise and sometimes it's just one or
> the other. Any idea what's causing this issue and how I can resolve it?
>
> Thanks
> Eric Wescott

Thank you for providing samples.
r33795 should fix it for you.