On Thu, 29 Oct 2020 19:58:48 +0100 Nicolas George <geo...@nsup.org> wrote:
> Siard (12020-10-29): > > > ffmpeg -f concat -safe 0 -i <(for f in ./*.mp4; do echo "file '$PWD/$f'"; > > > done) -c copy output.mp4 > > > > The method that I know is slightly different. I once took it from > > https://medium.com/abraia/basic-video-editing-for-social-media-with-ffmpeg-commands-1e873801659 > > but that site has apparently been simplified now and concatenation has been > > removed. > > I found that it works fine for mp3's as well. > > > > Create join.txt file that contains the exact paths of the files that you > > want to join. All files should be same format (same codec). The path name > > of all files should be mentioned one by one like below. > > file /home/xx/myvideos/part1.mp4 > > file /home/xx/myvideos/part2.mp4 > > file /home/xx/myvideos/part3.mp4 > > file /home/xx/myvideos/part4.mp4 > > Now, join all files using command: > > $ ffmpeg -f concat -i join.txt -c copy output.mp4 > > If you get an error something like below; > > [concat @ 0x555fed174cc0] Unsafe file name '/path/to/mp4' > > join.txt: Operation not permitted > > add "-safe 0": > > $ ffmpeg -f concat -safe 0 -i join.txt -c copy output.mp4 > > That's exactly the same method, you are just using a file instead of a > shell pipe substitution. And both variations are mentioned in the page I linked to: https://trac.ffmpeg.org/wiki/Concatenate Celejar
