[FFmpeg-devel] [PATCH] dvd vob input fps detect wrong

Lance Wang lance.lmwang
Fri Sep 7 14:46:04 CEST 2007


> mpeg2video with 30000/1001 fps can through the use of the repeat first field
> and top field first flags have frames start at any point in a 60000/1001
> timebase so the code is correct your change breaks it

Thanks for your explain, I haven't understand your point. I think
interlaced mpeg2video
frame rate is 30000/1001, but field rate is 60000/1001, so why it
looks the fps as 6000/1001
after calculated?  If I force the fps to 30000/1001 manually and
convert it h264, the result is OK also. Any comment to fix the issue?
By my test, if I transcode 1000frame, the duplicate frame will
1000frame also.


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