[FFmpeg-user] Image extraction broken with ffmpeg, but not with mencoder. How can I fix this?
jpboard2 at yahoo.com
Wed Sep 4 19:11:34 CEST 2013
>> My question is: what does -vsync do? And, why does it work (so
>> I can avoid this problem in the future)?
>See http://ffmpeg.org/ffmpeg.html and search for vsync. All the answers
>to your present and past problems are there.
Already did that. This is what it says about -vsync 0:
Each frame is passed with its timestamp from the demuxer to the muxer.
So why does ffmpeg duplicate frames when I don't use '-vsync 0'. And
why does it not duplicate frames when I use '-vsync 0'. Why does it matter
what timestamps is passed to the muxer? I'm generating individual files as
output so why does the timestamp matter?
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