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I am using an external script (http://trac.ffmpeg.org/wiki/Concatenate#extscript) to concatenate multiple MP4 files. This script lets you do a command like this:
./mmcat input1 input2 input3 ... output
to concatenate multiple files.
I am using this command right now:
./mmcat.sh video1.mp4 video2.mp4 video3.mp4 "output.mp4"
After getting an "Operation not permitted" error, I logged the results, which are listed below:
In log.v.3 and log.v.2:
[yuv4mpegpipe @ 00000190aa080a20] ERROR: Codec not supported.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
In log.a.2: Temp/mcs_a2.lnk: Permission denied
In log.a.3: ...AppData/Local/Temp/mcs_a3.lnk': Output file #0 does not contain any stream
I would appreciate any help, as I'm very new to using ffmpeg and just a beginner at video encoding etc., in general.
I've never tried that script, but you may be able to just use the concat demuxer instead as shown in that same link. – llogan – 2016-02-05T20:37:46.873