2019-01-16 21:10 GMT+01:00, Bill Moseley <[email protected]>: > On Tue, Jan 15, 2019 at 6:27 PM Bill Moseley <[email protected]> wrote: > > >> $ ffmpeg -f concat -safe 0 -i input.txt -vf yadif out.mp4 >> >> Apparently audio settings on the camera changed during that day. >> >> $ ffmpeg -i 'clip-1999-07-29 13;25;19.dv' 2>&1 | grep Audio >> Stream #0:1: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s >> Stream #0:2: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s >> >> $ ffmpeg -i 'clip-1999-07-29 13;26;20.dv' 2>&1 | grep Audio >> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s >> >> > I guess the answer is in the documentation: > https://ffmpeg.org/ffmpeg-formats.html#concat > > "All files must have the same streams (same codecs, same time base, etc.)." > > > Looks like I need to normalized the dv files first, so any that are not > 48000 Hz: > > $ ffmpeg -i input.dv -ar 48000 out.dv
$ ffmpeg -i input.dv -ar 48k -vcodec copy out.dv The alternative is to use the concat filter that does not have the format limitations. Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
