how to concatenate VOB or AVI files

[hedron]

How would I string together a few VOB or AVI files to make one file? Using linux?

I can do the conversion from VOB to AVI, but then I have a few avi files for one movie. I'm not concerned whether I have to concatenate the VOB or the AVI files so long as the product is one file in the end.

[guns1inger]

AVI Demux. Load file one, append file 2 etc

[hedron]

Thanks, but I tried that and I can't seem get that thing to compile. I tried this:

cat file1.avi file2.avi file3.avi file4.avi >> whole_file.avi

But when I play it, it only recognizes file1.avi, but I know the rest of them are in the file because if you add up the file sizes it equals the size of whole_file.avi.

But when I do this:

ffmpeg -i whole_file.avi -f avi -vcodec libx264 -aspect 4:3 -b 1024k -g 300 -bf 2 -acodec libmp3lame -ab 128k ./file-final.avi

It seems to come out fine, but I already converted it. I don't need to convert it twice? Plus, the quality is reduced...

[edsmith77]

You could try vobmerge. It works for me.

[Geremia]

This seems to work, but it drops many frames and the audio/video are out-of-sync:

mencoder -ovc copy -oac copy -o all.VOB $(ls -1 *.VOB)

[Geremia]

This might work better:

cat *.vob | mencoder <options> -

[fvisagie]

With ffmpeg, use

-vcodec copy -acodec copy

instead.

Although any of the other suggestions would also work.

Cheers,
Francois