[vlc] Transcoding only audio from DVD yields a dummy audio stream

Sarah k Alawami marrie12 at gmail.com
Mon Feb 18 01:29:23 CET 2013


I think you can use switch if it still exists to do that. use hand brake to encode to mp4 then switch to remove the audio. I did this when I used  to watch dvds.
 Good luck.

Sarah Alawami: Owner of Alawami productions, where quality is key. Check us out on the web at http://alawamiproductions.com/mastering

On Feb 17, 2013, at 1:35 PM, Alan Tam <siulung at gmail.com> wrote:

> Hi,
> 
> I'm sorry if this question is silly, but I did search around the web for hours without any clues.
> 
> I attempted to transcode the audio part of a DVD chapter using the following command:
> 
> /Applications/VLC.app/Contents/MacOS/VLC \
> 	--play-and-exit -I dummy --no-sout-video \
> 	--sout "#transcode{acodec=mp4a,ab=256,channels=2}:std{access=file,mux=mp4,dst=test.m4a}" \
> 	"dvdsimple:///dev/disk2#2:1-2:1"
> 
> That yields a file playable in VLC but not in iTunes. After inspection using ffmpeg, I note the following:
> 
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.m4a':
> Duration: 00:08:59.6, start: 0.000000, bitrate: 238 kb/s
> Stream #0.0(eng): Audio: aac
> Stream #0.1(eng): Audio: aac, 48000 Hz, stereo
> 
> There are two audio streams in the output file, and perhaps iTunes wants to read from only the first stream.
> I tried adding "--audio-track 0" to no avail.
> 
> Anything I've done wrong, or Is it a defect of my DVD TS?
> Anything I can do to correct it except to use another software to remove the extra stream?
> 
> Thanks!
> 
> -- 
> Regards,
> Alan
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