[MPlayer-users] mencvcd video plays too fast

[GD Lewis]

On Mon, 2002-10-14 at 18:33, airstrip1 at ml1.net wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hello!
> 
> Thanks Juergen for the tip!... but it didn't work. After 24h of recoding
> the same problem occur. MPlayer is reporting the recoded video as:
> "VIDEO:  MPEG1  352x288  (aspect 8)  25,00 fps  1440,0 kbps (180,0
> kbyte/s)" 
> and the source video as:
> "VIDEO:  [DIV3]  576x432  24bpp  25,00 fps  1128,2 kbps (137,7 kbyte/s)"
> The sound is ~2 sec behind at the begining of the movie and 20 or so near
> the end
> (the movie is about 1h).
> 
> Would be grateful for more ideas!

I experience this problem as well, but only with avi's that I've
re-encoded with mencoder to a higher framerate.

If the source file that you have is already at a standard framerate, you
could try manually splitting the avi into two seperate files and
encoding each one seperately.

The problem occurs when the mencvcd script splits the resulting mpv and
mp2 streams to fit on multiple disks.  Somehow it seems to throw the
sync off when they are mplexed back together to a mpg. But if the file
is already split beforehand and the script doesn't have to span disks,
then it usually works ok. I have no idea why this is and no idea on how
to fix it.

This is from a message from gabor who explains how to split an avi: 

========================BEGIN_PASTE==============================
look for -ss and -endpos

basically -ss sets up the beginning and -endpos sets up the end.

so, to cut an avi into 2 parts:

mencoder -ovc copy -oac copy -endpos 50 myfile.avi -out file1.avi
mencoder -ovc copy -oac copy -ss 50 myfile.avi -out file2.avi

this will cut it at 50seconds

=========================END_PASTE===============================

The trick is finding the right position to split it at so the resulting
bin/cue will fit on one disk, and it best to overlap the parts by a
small margin.  Then run mencvcd on each part as usual.

I know it's a bit of a hassle, but it's worth it when you are watching a
perfect VCD! :-)

<snip>

-- 
Grant D. Lewis
Running Gentoo Linux kernel 2.4.19-r7 on a GenuineIntel i686

"Those who define new paradigms for the world are often considered
strange at first"