http://bugs.cinelerra.org/show_bug.cgi?id=269
Summary: libmpeg: mpeg files incorrectly indexed, resulting in
audio / video sync and searching problems...
Product: Cinelerra
Version: 2.0
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: Medium
Component: File Loading
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
libmpeg doesn't seem to index mpeg files properly...
I've had issues with mpeg from a standalone DVD-recorder (Panasonic). My issues
were:
1. Audio was always 3 seconds longer than actually in the file
2. Video always had 1 frame extra
Other's who have similar issue include:
* minmax had an issue with a certain video:
http://www.kiberpipa.org/~minmax/MOV00977.MPG
* goldfish2001 had an issue with:
http://www.nicholaslidster.plus.com/video/testvid.mpg
I personally fixed the first issue that I had with a patch (
http://cvs.cinelerra.org/~pmdumuid/hvirtual_mpeg_number_of_samples.diff ) but
I'm not completely sure that's its safe for everyone to use. The second issue
has always evaded me. Since the MPEG specifications need to be purchased, I
personally don't understand the structure of mpeg files, and hence how to debug
libmpeg.
Here's a mail I sent out:
https://init.linpro.no/pipermail/skolelinux.no/cinelerra/2005-December/004880.html
For a discussion that occured on IRC, see:
http://cvs.cinelerra.org/irclog/index.php?file=2005-12-23.html (specifically
13:44 onwards)
http://cvs.cinelerra.org/irclog/index.php?file=2005-12-21.html (goldfish2001's
posting)
Cheers,
Pierre
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