[MEncoder-users] Problem re-encoding matroska xvid+ac3 file

[Maciej J. Woloszyk]

On Thursday 26 of May 2005 16:37, Oleynik Phil wrote:
>
> I know your problem. I had it in the same way, with AAC sound. I solved
> it in my special way,
> I have an opinion that 5.1 is a little insane thing, because probably,
> nobody has 5+1 ears ;).

Well... Maybe not ears, but I do have 5.1 sound system ;)
Anyway - I keep my divx's with stereo sound so the method looked interesting.

> So I am going to advice to downmix to stereo. You may try not to do it,
> maybe it'll work also for 5.1.
>
> 1. Extract PCM WAV from mkv file with mplayer.

ok.

> 2. Encode it with anything you wish, I used OGG

I use mp3 so I encoded with lame

> 3. Put it to the original matroska with --disable-lacing key.

Do you mean I should do mkvmerge taking all streams from the original mkv and 
my additional audio stream and create intermediate mkv file?

> 4. remix matroska without original sound, keeping your OGG stream with
> --disable-lacing key.

...and then take the intermediate file and using mkvmerge create yet another 
mkv file with only video and new audio file?

> 5. Feed it to mencoder, as usual.
>

If the answer to both my questeions is "yes" then I did it and unfortunatelly 
it didn't helped - fimal mkv file is fine (no desync) but after I put it 
through mencoder to create final avi I get the same desync as without the 
whole procedure.

M.

-- 
Maciej J. Woloszyk, <mat at esi.com.pl>
tel. +48 501 033 410          "All power corrupts, absolute power...
JID:mat at esi.com.pl                               ...is even more fun"