[FFmpeg-user] No duration with pipe:1 as output

Robert Nagy ronag89 at gmail.com
Mon Feb 8 17:24:42 CET 2016

>Not if there are filters that alter the timestamps, nor if the source file
> duration is not accurate enough or completely unknown.

True, but if that is not the case then it would? In theory it should
be possible to make a conservative guess.

Would be nice to be able to at least specify it manually if known in


-metadata duration=00:00:25:00

or something...

More information about the ffmpeg-user mailing list