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I have two *.avi files:

sequence1.avi
sequence2.avi

How do I merge these two files using a command-line or GUI?

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me curious why prefer ffmpeg? –  Tshepang Dec 31 '10 at 7:32
    
ffmpeg is a very powerfull tool, so I thought it would be capable of merging two files together. However, as you can see from Micheal's answer we went with Avimerge. –  Stefan Dec 31 '10 at 8:33
1  
You can use ffmpeg command if you like (as it is not GUI I don't post it as answer) IIRC. –  Maciej Piechotka Dec 31 '10 at 9:59
    
@Maciej You might post your answer here. –  Tshepang Dec 31 '10 at 11:36
    
excuse me, but you still didn't tell me why ffmpeg –  Tshepang Dec 31 '10 at 12:29

4 Answers 4

up vote 14 down vote accepted

There's a dedicated tool to do this, avimerge:

avimerge -o cd.avi -i cd1.avi cd2.avi
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2  
my distro (arch) doesn't have avimerge in the repositories.. –  Stefan Sep 20 '10 at 15:21
5  
@Stefan It appears to be part of transcode, if I'm reading this correctly –  Michael Mrozek Sep 20 '10 at 15:34
    
thanks @micheal. –  Stefan Dec 31 '10 at 8:31
1  
Debian doesn't have transcode, supposedly due to patent issues. There's a third-party repo found at debian-multimedia.org, but the transcode package (version 1.1.5-0.7) doesn't have the avimerge binary. You might wanna make a note of that. –  Tshepang Dec 31 '10 at 21:28
    
For Ubuntu, avimerge is available in the transcode-utils package from the multiverse repository. –  jthetzel May 11 '12 at 16:50

Easy with mencoder (shipped with mplayer in Arch Linux):

$ mencoder -oac copy -ovc copy video1.avi video2.avi -o final.avi
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Avidemux can paste two videos together, at least if they have the same resolution and a few other constraints. Use “Append” from the “File” menu.

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You can merge avi files with avimerge from Transcode package:

avimerge -i file1.avi file2.avi -o output.avi

I know that it isn't GUI tool, but to have GUI you could use that script:

#!/bin/bash
file1=`kdialog --getopenfilename ~/ \*.avi`
file2=`kdialog --getopenfilename ~/ \*.avi`
output=`kdialog --getsavefilename ~/ \*.avi`
avimerge -i $file1 $file2 -o $output

It uses kdialog so it's for KDE users, GNOME users should modify it to use Zenity...

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Your thirst for going ahead and give the Answer regardless should have been quenched by going here: unix.stackexchange.com/questions/2273/…. Also, see my Comment on the Accepted Answer. –  Tshepang Jan 2 '11 at 7:43
    
Oh, sorry - somehow I missed that question... –  pbm Jan 2 '11 at 9:30

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