[MPlayer-users] MP4 edit list atom issue with recent SVN.

Raimund Berger raimund.berger at gmail.com
Tue May 6 06:15:58 CEST 2008


"Raimund Berger" <raimund.berger at gmail.com> writes:

> Hi
>
> I've got a mp4 file where video start time is delayed a little via an
> edit list atom.
>
> Interestingly, my default Debian Lenny install (dev-SVN-r25315)
> apparently plays this file alright, whereas a recent SVN
> (dev-SVN-r26624) exhibits heavy async and seems to completely ignore
> that edit list entry.
>
> Question hence: is this a regression or went this feature broke for a
> reason?

Cleared this up for myself and post here for the records.

Apparently, for mp4, mplayer has 2 demuxers available, lavf and mov.
As of now, the latter takes edit lists/delayed starting times into
consideration, the former does not. The whole point is that the
default demuxer seems to have changed since rc2, from mov to lavf.

Use of a specific demuxer can be forced of course, also for
verification of above observations, as I did:
mplayer -demuxer lavf clip.mp4
mplayer -demuxer mov clip.mp4




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