Cecil Westerhof (2018-07-01): > [concat @ 0x556c69d90e40] Impossible to open 'educational.mov'
> Why is this? Can it be circumvented? When ffmpeg sees the "-" filename, it translates it to "pipe:"; you could use "pipe:" directly to read from stdin. Also, paths in concat scripts are relative, so that when you write /full/path/to/educational.txt, it knows to find educational01.mov in /full/path/to/. And you could even write http://example.com/path/to/educational.txt and have it find http://example.com/path/to/educational01.mov as expected. Combine these two informations, and you deduce that ffmpeg is looking for pipe:educational01.mov, which does not exist, and in fact does not even make sense. You can solve the problem by prefixing all file names by $PWD in the script. Another option would be to add an option to the concat demuxer, "-base ." to override the base directory deduced from the path to the script. It would be rather easy to implement. Regards, -- Nicolas George
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