On Mon, Mar 16, 2020 at 09:21:56 +0100, Michael Fladischer wrote: > But there was no syntax error: > > $ ffmpeg -f -i file.ts -filter_complex '[i:0x101][i:0x103]amix=inputs=2' -vn > -c:a flac /tmp/auphonic-input-m2s6wfy8.flac [...] > Invalid file index 0 in filtergraph description > [i:0x101][i:0x103]amix=inputs=2.
Yeah, interesting. It's due to the the fact that the "-i" get swallowed as an option to "-f", and you therefore have no input files specified, and therefore the filtergraph cannot be set up. With loglevel verbose, I get: > Reading option '-f' ... matched as option 'f' (force format) with argument > '-i'. I wonder why ffmpeg doesn't trip over this first. Whatever. Cheers, Moritz _______________________________________________ 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".
