[FFmpeg-user] Forcing ffmpeg to detect duration reliably

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Mar 1 11:50:29 CET 2013

Robert Krüger <krueger <at> lesspain.de> writes:

> > (In your sample case, the input video is vbr, meaning
> > there is no way of knowing the duration without
> > going through the whole file as in decoding. You can
> > speed up this operation but you have to invoke the
> > decoder.)
> OK, thank you for that information. Just to be sure, by decoding you
> mean bitstream parsing as in av_parser_parse2 (see other thread on
> libav-user) , not necessarily decoding any picture data, right?

It appears you know more about it than I do;-)

Sorry, Carl Eugen

More information about the ffmpeg-user mailing list