How to get several audio tracks from a VOB file?

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How to get several audio tracks from a VOB file?

Raimund Eimann-3
Hi,

I am new to video encoding so forgive me stupid questions...

I have a movie in VOB format and want to keep the first and the second
audio track, i.e., I would like both tracks to be encoded into the
resulting file. Is that possible, and if so, how? I tried googling for
"ffmpeg multi audio", and all I got was instructions on how to add new
audio tracks to an existing movie. Far too advanced for my needs.

Is there a way to isolate and keep the first two subtitle tracks from the
movie also? Ideally, I would like to have those as plain text files, so
that I can adjust the size at which the subtitles are displayed (as opposed
to "baked in" subtitles, where I suppose the subtitles are not text, but
pixels in the video).

Is it true or an urban legend that several VOB files can simply be
concatenated using cat file1.vob file2.vob file3.vob > bigfile.vob? Or does
that break the the video stream in bigfile.vob, because each of the VOB
files has some kind of header, which would not be expected somewhere in the
middle of bigfile.vob.

Cheers,
Raimund

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RE : How to get several audio tracks from a VOB file?

jackyr
Hi Raimud

I am not an expert (everybody will see) but I am doing what you
Want to do --- from a DVD (several VOB files) I have to create
An FLV file
I do concatenate each individual VOB files into a <bigfile> then
Encode it to flv .
I found which we need a intermediate step to update timespec and
Then run an additionnal step using ffmpeg like
  ffmpeg -i bigfile.vob -sameq -y updatedbigfile.vob  
It works fine

Hi gourous do you have a way to speed up and avoid that step ?

Regards to all of you

jacky  

-----Message d'origine-----
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[mailto:[hidden email]] De la part de Raimund Eimann
Envoyé : dimanche 9 mai 2010 10:49
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Objet : [FFmpeg-user] How to get several audio tracks from a VOB file?



Hi,

I am new to video encoding so forgive me stupid questions...

I have a movie in VOB format and want to keep the first and the second audio
track, i.e., I would like both tracks to be encoded into the resulting file.
Is that possible, and if so, how? I tried googling for "ffmpeg multi audio",
and all I got was instructions on how to add new audio tracks to an existing
movie. Far too advanced for my needs.

Is there a way to isolate and keep the first two subtitle tracks from the
movie also? Ideally, I would like to have those as plain text files, so that
I can adjust the size at which the subtitles are displayed (as opposed to
"baked in" subtitles, where I suppose the subtitles are not text, but pixels
in the video).

Is it true or an urban legend that several VOB files can simply be
concatenated using cat file1.vob file2.vob file3.vob > bigfile.vob? Or does
that break the the video stream in bigfile.vob, because each of the VOB
files has some kind of header, which would not be expected somewhere in the
middle of bigfile.vob.

Cheers,
Raimund

_______________________________________________
ffmpeg-user mailing list
[hidden email]
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user

_______________________________________________
ffmpeg-user mailing list
[hidden email]
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user