[FFmpeg-user] trouble shooting timecode issue with vfr mov
bobm-ffmpeg at burner.com
Wed Nov 28 21:35:12 CET 2012
On 11/28/2012 1:24 AM, Dave Rice wrote:
> Note that if I omit the -vsync 0 then the timecode is still off but I get duplicated frames instead of a longer-duration frame at the beginning, thus my 2 frame source becomes a 5 frame output. Thus for a lossless transcode from mov to mov I'm using -vsync 0.
Have you tried also forcing the actual frame rate with -r ? I had an
issue with ffmpeg sometimes writing the wrong frame base into the
timecode atom unless I specified the rate - see thread titled "Copying
h264 Quicktimes makes insane timecode", perhaps it could be related.
Worth a quick try anyway.
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