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mp4Combine
ameci-iis edited this page Apr 5, 2024
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The mmtisobmff repository provides a command-line program that takes multiple MP4 files as input and combines them into a single output MP4 file.
To build mp4Combine set mmtisobmff_BUILD_BINARIES variable while configuring the project using CMake :
$ cmake -S mmtisobmff -B build -DCMAKE_BUILD_TYPE=Release -Dmmtisobmff_BUILD_BINARIES=ON
Read build instructions to learn how to configure and build the project.
If the build process is successfully finished, mp4Combine can be found in the build/bin folder
$ build/bin/mp4Combine -if <Input1-URI> [-t <trackIndex0> ... -t <trackIndexN>] ... -if <InputM-URI> [-t <trackIndex0> ... -t <trackIndexN>] -of <OutputFile-URI>
- -if <path to input file>
- relative or absolute path to an input MP4 file. User can specify an arbitrary number of input file URIs
- -t <path to input file>
- The index of the track(s) in the specified input file (0-based). If the index is not explicitely specified, all tracks of the input file are used
- -of <path to input file>
- URI of the mp4 out file.
mp4Combine -if input1.mp4 -t 0 -t 2 -if input2.mp4 -if input3.mp4 -t 1 -of output.mp4
The example above takes 3 input files "input1.mp4", "input2.mp4" and "input3.mp4" and remuxes the first and third track from "input1.mp4", all tracks from "input2.mp4" and the second track for "input3.mp4" into the output file "output.mp4".