[FFmpeg-user] ffmpeg architecture question #2

[pdr0]

Carl Eugen Hoyos-2 wrote
>> e.g
>> ffmpeg -i input.mpeg -c:v rawvideo -an output.yuv
> 
> (Consider to test with other output formats.)

What did you have in mind?
e.g.

ffmpeg -i input.mpeg -c:v utvideo -an output.avi

The output is 29.97, according to ffmpeg and double check using official
utvideo VFW decoder, duplicate frames . Missing 3 frames if duplicates abide
by RF flags

e.g.

ffmpeg -i input.mpeg -c:v utvideo -an output.mkv

Output is 29.97, but no duplicate frames.  Missing 1 frame

eg.

ffmpeg -i input.mpeg -c:v libx264 -crf 18 -an output.mp4

Output is 29.97 with duplicates . Elementary stream analysis confirms
finding.  But missing  3 frames if duplicates abide by RF flags


ffmpeg -i input.mpeg -c:v libx264 -crf 18 -an output.mkv

Output is 23.976 no duplicates . Missing 1 frame



eg.

ffmpeg -i input.mpeg -c:v ffv1 -an output_ffv1.mkv

Output is 29.97, no duplicates.  Missing 1 frame


Looks like some container differences too. 






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