[FFmpeg-user] Image extraction broken with ffmpeg, but not with mencoder. How can I fix this?

[Carl Eugen Hoyos]

Tom Evans <tevans.uk <at> googlemail.com> writes:

> What the image2 muxer produces as frame 100 is the 
> 100th frame of the CFR output. What the select filter 
> filters on is the 100th frame of the VFR input.

But we do all agree that this is only true because of the 
specific command line?
Because the select filter doesn't know anything about VFR 
or the input file, but only sees the frames that are 
output by the prior filter (which may be the fps filter).

Carl Eugen