[FFmpeg-user] Question about splitting video with dvd_nav_packet data streams
Carl Eugen Hoyos
cehoyos at ag.or.at
Wed Jan 1 16:50:41 CET 2014
David Favor <david <at> davidfavor.com> writes:
> >> 1) adjust volume
> >> 2) reduce bitrate
> >> 3) retain all data streams (varies 1-3 data streams/VOB file)
> ffmpeg -y -i VTS_01_0.VOB -c:a pcm_s16le -ar 44100 -ac 2
> foo.wav -map 0:1 -c:v copy foo.vob -map 0:1 -c:d copy foo.data
(Complete, uncut console output missing.)
Why do want to output a file "foo.wav"?
If your goal is to have an input vob file, adjust its volume,
reduce its video bitrate (and copy some other streams from
input to output), why should there be a wav file involved?
The same for foo.vob: Why don't you reencode with your
desired target bitrate?
> [NULL <at> 0x7fb0f2038600] Unable to find a suitable
> output format for 'foo.data'
If you want to keep the data streams from an input vob file,
your output file has be a vob file as well.
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