Author Topic: Merging/concatenating several MP4 files  (Read 270 times)

andybillem

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Merging/concatenating several MP4 files
« on: August 18, 2017, 04:26:26 PM »
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

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Re: Merging/concatenating several MP4 files
« Reply #1 on: August 18, 2017, 05:05:17 PM »
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

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Re: Merging/concatenating several MP4 files
« Reply #2 on: August 21, 2017, 08:35:32 PM »
Is there a limit to how many can be merged/file size?

talktobabes
« Last Edit: October 07, 2017, 10:23:32 AM by Telasterod »

eumagga0x2a

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Re: Merging/concatenating several MP4 files
« Reply #3 on: August 21, 2017, 09:11:11 PM »
The total duration is uint64_t measured in 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 ;-)).
« Last Edit: August 22, 2017, 06:20:09 AM by eumagga0x2a »