[FFmpeg-user] problems with vob to mkv

Nicolas George george at nsup.org
Sun Aug 10 10:17:06 CEST 2014

Le duodi 22 thermidor, an CCXXII, Jason Pollard a écrit :
> I'm running into errors with the following which is causing problems with
> playback.  Is this indicative of corrupt input?

Yes, in a certain way.

> cat VTS_11_*.VOB | ffmpeg -i - -codec:v libx264 -sn -profile:v high -b:v 1k
> -maxrate 500k -bufsize 10k -vf scale=-1:720 -s 1280x720 -codec:a ac3 -b:a
> 128k frozen.mkv

This is not the proper way of extracting a title from a DVD-Video structure.
You get all the menus and strange DVD-specific thingies mixed with the
actual content you want. That would certainly explain the decoding errors

mplayer can dump a single VOB file from a DVD title. FFmpeg also has a
dvd2concat tool to access the structure directly, but it is a bit tricky to


  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-user/attachments/20140810/39665ba0/attachment.asc>

More information about the ffmpeg-user mailing list