[FFmpeg-user] combining concat filter with closed caption extraction

Nicolas George george at nsup.org
Thu Jun 11 11:11:10 EEST 2020

Leo Butler via ffmpeg-user (12020-06-10):
> ffmpeg -i C.mkv -f lavfi 'movie=C.mkv[out0+subcc]' -map 0 -map 1:s D.mkv

You are missing a -i in this command line.

> Question: Is there a way to reduce this to one pass?

With the -i, it becomes obvious: 'movie=C.mkv[out0+subcc]' is just
another input, like B.ts.


  Nicolas George
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