Hello andrei, I know the command is a bit messy, but this is not a contradiction. There are two separate outputs, one for video with the -an, and another with the audio mapping and an audio codec specified. AFAIK they are not used together.
These commands are generated "on the fly" from my software, and they can be used quite a lot of use-cases. If you have any other useful critique of the command here, please go ahead and I'll improve it. Regards, Louis On Thu, 25 Jun 2020 at 15:05, andrei ka <[email protected]> wrote: > pretty messy command with a few redundancies, but the funniest one -an and > -c:a combo > > Le jeu. 25 juin 2020 à 14:35, Gyan Doshi <[email protected]> a écrit : > > > > > > > On 25-06-2020 05:17 pm, Louis Geuten wrote: > > > Hello, > > > > > > It seems that using the argument "-flags +global_header" with the > > bitstream > > > filter "dump_extra" fixes the issue. > > > Why this isn't needed when directly muxing with ISMV instead of fifo is > > > beyond me. > > > > Each muxer has a list of flags; those relevant to encoders are conveyed > > by ffmpeg to that encoder. > > > > The fifo muxer isn't a muxer per-se but an intermediary layer dressed up > > as a muxer. It won't necessarily share the relevant flags with the child > > muxer, so they have to be manually set by the user. > > > > Gyan > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > [email protected] with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
