[FFmpeg-user] What is my problem with concat?

Tom Horsley horsley1953 at gmail.com
Thu May 9 02:18:08 CEST 2013

On Wed, 8 May 2013 10:36:14 +0200
Nicolas George wrote:

> L'octidi 18 floréal, an CCXXI, Tom Horsley a écrit :
> > I can run -show_packets, but I can't interpret the output :-).
> > 
> > What would indicate a reset?
> You have to look at the pts_time and dts_time, in each separate streams
> (stream_index=X). The dts_time should be in more or less regular
> progressively ascending order, and the dts_time should be the same values,
> possibly with a small offset or slightly out of order if there are B-frames.
> Something like that:

Well, I found absolutely nothing that looked irregular about the times
in the packets (whipped out a little perl script to compare various things),
but I'm pretty sure I have decided that I need to hit '-' 3 times in mplayer
(-300ms audio delay) right at the point where the 3rd file gets concatenated
in the list of the 6 files that make up the whole video.

I guess I can try inserting (or is it deleting) 300ms of silence in the audio
at that timestamp and see if it comes out right :-).

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