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

Nicolas George george at nsup.org
Sat Jun 13 13:06:09 EEST 2020

Leo Butler via ffmpeg-user (12020-06-12):
> Nicolas George <george at nsup.org> writes:
> >> Rather than creating the file C.mkv in the first pass, can the lavfi
> >> filter use the video output stream of the concat filter directly?
> >
> > My answer is the same: 'movie=C.mkv[out0+subcc]' is just another input,
> > like B.ts. You can see that because they both have -i in from of them:
> > they are the same.
> So the `obvious' answer is no: ffmpeg cannot/does not use an output
> stream from a filter as an input in this fashion? If the answer is so
> obvious, why not just write one word instead of many?

I just told you it does not need to “use it like” an input because it
***IS*** an input.


  Nicolas George
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