Hi, On Sat, Nov 11, 2023 at 11:12:07 +0100, bbb wrote: > when I have a file using advanced subtitles, I often want to keep those for > most devices but also add a basic subtitle format that is supported by my > TV. > > So far, I've been converting the subtitles and after that, mapping the > different subtitle format from the original and the output file into a final > file in a second operation. Surely it would also be possible to map the > original subtitles twice and then copy all codecs and convert only that of > the second subtitle stream.
Sure you can. You map the relevant input stream twice, and copy the first one while converting the second one. Something like: $ ffmpeg -i video.ext -map 0:v -map 0:a -map 0:s -map 0:s -c:v copy -c:a copy -c:s:0 copy -c:s:1 srt output.ext (Or perhaps convert the first one, if it's important for your TV.) > I am planning to work on an automation (that works on a directory without > knowing the number of streams in each file) and wondering, if ffmpeg maybe > already has the kind of feature that I am looking for. I believe ffmpeg cannot automate the work on the number of streams. For the above scenario, you have to identify the streams first before constructing the command line. (So there's no "-map_if_exists 0:s"...) Cheers, Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".