Looking for simple program to combine multiple avi files

[cedch]

I have four video files (H264 - avi) from different small cameras I would like to combine them into a single video, so I'm looking for a (free? portable?) software that can get these concurrent four avi files and then combine them to a single avi (with 4 areas, please see the example attached). Synching and joining capabilities are a surplus.
Can you help me? I can't find anything doing this.
Thanks

[jagabo]

Any NLE should be able to do that. Doing it in AviSynth is easy although it uses text based scripts:

ch1 = AviSource("channel1.avi")
ch2 = AviSource("channel2.avi")
ch3 = AviSource("channel3.avi")
ch4 = AviSource("channel4.avi")

StackVertical(StackHorizontal(ch1, ch2), StackHorizontal(ch3, ch4))

Then open the script in any editor/encoder/player that supports AviSynth input.

[pandy]

https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%20several%20input%20videos

[cedch]

this is quite awesome! THANKS!

[jagabo]

Corel VideoStudio: http://www.youtube.com/watch?v=mdhdCDYCEhE
Sony Vegas: http://www.youtube.com/watch?v=oxWEdwXk0UU