Merging/concatenating several MP4 files

[andybillem]

I have several MP4 files, most about 1 minute each.  Is it possible to merge them to one file with Avidemux, to then be edited?  I am Using Windows 7, 64 bit. Thanks for your help.  Andy

[eumagga0x2a]

Either drag and drop the files onto Avidemux window in the order you would like to have them or load the first one then "File" --> "Append" each of the remaining. Saving them in copy mode will likely fail if codec settings used to generate the individual videos differed even a slightest bit, reencoding should not pose a problem though.

Obviously, all files must share the same dimensions, orientation and frame rate.

[Telasterod]

Is there a limit to how many can be merged/file size?

talktobabes

[eumagga0x2a]

The total duration is uint64_t measured in Ã,µs, the number of frames is uint32_t and the number of segments (at least one per video) is also a uint32_t. Whichever you hit first (so likely not the number of segments ;-)).