[theora] DVD NTSC video plays twice as fast when encoded with libtheora

Jason Self jason.self at gmail.com
Fri Jun 19 22:59:21 PDT 2009

On Fri, Jun 19, 2009 at 10:56 PM, Jason Self <jason.self at gmail.com> wrote:
> https://roundup.ffmpeg.org/roundup/ffmpeg/issue1197
> I had originally encountered this problem using ffmpeg2theora. I
> switched to ffmpeg proper in an attempt to identify where the problem
> was at, and found that the problem persisted. As a result I had
> thought this was a problem with ffmpeg, but the ffmpeg folks seem to
> indicate that this is specific to Theora (too much finger pointing I
> think.) I can confirm that switching codecs does solve the problem,
> though. Anyone care to weigh in? A small section (10MB) of the
> problematic video can be obtained from
> http://shows.bluehome.net/kfp_small.vob.

One other thing: I can run the DVD through HandBrake (which makes use
of libavcodec and libavformat from the FFmpeg project) using
Theora/Vorbis and it's perfectly fine.

More information about the theora mailing list