[Theora] Video and audio not in sync
svalente at mit.edu
Sun May 1 00:46:00 PDT 2005
> did you try gstreamer? you can try the attached script
> ./gst2ogg input.mpeg output.ogg
Thanks. But gstreamer also lost the sync at 160 seconds (like
Someone else wrote:
>> It appears that mencoder does what I need, but unfortunately, mencoder
>> doesn't encode to any interesting codecs.
> Is that a problem? Output to some lossless codec (or very high bitrate
> MPEG-2, etc.), then encode from that file into theora.
Ah ha. That works sometimes. "mencoder $file -ovc lavc -lavcopts
vcodec=ljpeg -oac copy -o mencoder.avi" generates a giant correct
fixed-fps avi file. Oddly, "ffmpeg2theora mencoder.avi" doesn't quite
work. It generates a .ogg file where the video starts a second after
the audio, so the whole thing is out of sync right from the beginning.
But "theora-encoder mencoder.avi" (avi -> yuv -> example_encoder)
Thanks for your help.
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