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Autopano Video - Concatenate several mp4

FFMPEG method (Concatenation of files with same codecs)

Concat demuxer method (We used that method on Gopro Hero3 black mp4 videos)

The concat demuxer was added to ffmpeg 1.1. You can read about it in the [documentation].
Create a file "Cam01.txt" with all the (files relative or absolute paths) you want to have concatenated in the following form ( Lines starting with a dash are ignored ):
# this is a comment file '/path/Cam01/GOPR0009.MP4' file '/path/Cam01/GP010009.MP4' file '/path/Cam01/GP020009.MP4'
Note that these can be either relative or absolute paths. Then you can encode your files with: ffmpeg -f concat -i Cam01.txt -c copy Cam01.mp4