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Date:      Wed, 03 Mar 2004 12:59:24 +0100
From:      Werner Rips <wrips@kordel.de>
To:        multimedia@freebsd.org
Subject:   how to transcode
Message-ID:  <4045C89C.8010203@kordel.de>

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i'm workin on FreeBSD4.9Release. with the following script i use to 
transcode regular dvd's so that i can dvdauthor the resulting movie files:

mplayer -dvd 1 -dvd-device /dev/dvd -vo null -ao pcm -aofile audio.wav
mencoder -dvd 1 -dvd-device /dev/dvd -of mpeg -nosound -ovc copy -o video.mpeg
ffmpeg -hq -b 2000 -vcodec copy -ar 48000 -ac 2 -i audio.wav -i video.mpeg output.mpg

tcextract -i output.mpg -x mpeg2 > video
tcextract -i output.mpg -x mp3 > audio

mplex -f 8 audio video -o movie1-%d


but i run into trouble, if i have any kind of  avi files. Everything 
works fine until mplex has to build the new movie files. it complain 
with a message similar like that:

  INFO: [mplex] mplex version 2.2.1 ($Date: 2002/02/04 19:06:14 $)

  INFO: [mplex] File audio looks like an MPEG Audio stream.

**ERROR: [mplex] File video unrecogniseable!

**ERROR: [mplex] Unrecogniseable file(s)... exiting.


so, please tell me how can i tcextract from some avi files so that  
mplex can do its job? is there a better (shorter) way to come to movie 
files that i can dvdauthor?

thanks in advance
werner



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