[MPlayer-users] Inverse Telecine and JPEG Extraction

[Reimar Döffinger]

On Sat, Sep 28, 2013 at 08:41:36AM -0700, James Board wrote:
> I'm trying to use a recent checkout of mencoder to both Inverse Telecine an
> AVI file and also output images for each frame.  I'm trying to do this in a
> single command so I don't have to read the video data from disk twice.  This
> is the command I'm using:
> 
>     mencoder IN.avi -nosound -ovc lavc -lavcopts vcodec=ffvhuff -vf filmdint -ofps 24000/1001 -o OUT.avi
>          -of lavf -lavfopts format=image2 -o ffmpeg://dummy://OUT%4d.png
> 
> There's two problems.  First, it doesn't produce the OUT.avi file (however, it
> does produce OUT.avi if I get rid of everything after that in the command
> line).  Seconds, the OUTxxxx.png files don't seem to be displayable images.

Mencoder can't output to more than one file at once.
If you want that you have to build that yourself, e.g. with vo yuv4mpeg,
pipes and "tee".
Also "don't seem to be displayable images" isn't very useful information.
It works for me.