Keith Watanabe * NET 2.0

ffmpeg and avimerge
By: Keith Watanabe
Published On: 12-28-2007

Recently, I started messing with this tool.  It's quite nice actually.  Combine this with avimerge, you can convert vob files to a massive avi file.  I found some good settings with ffmpeg:

$ffmpeg -i $input -f avi -vcodec xvid -b 8300 -g 300 -bf 2 -acodec mp3 -ab 128k $output

where:

$ffmpeg = /usr/bin/ffmpeg
$input = (your vob file)
$output = (your avi filename)

You probably have to tweak the bitrate and your encoding type.  Also, you might have to tweak the screen size.  For that you'll have to use the -s switch and enter your size like 800x600.  Main thing is to check what the original format is so you can try to match your output.  In general, these settings seem to be the most useful for most purposes.

If your avi files are split up, you can merge them together by using avimerge like:

avimerge -o (output file) -i input1 input2 input3 input4...

for example:

avimerge -o myfile.avi -i f1.avi f2.avi f3.avi f4.avi

Hope this helps people out there

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