[FFmpeg-user] dvd_nav_packet & mapping order issue

[Sub Phil]

>Writing dvdnav packets is not supported.
I haven't seen that in the documentation, maybe it should stated.

By the way, how do you than specify to copy all streams but dvdnav packets??


> but unless you can explain a negative effect this has, there is no issue.
Well, I do.
I can't properly concat files now.
Indeed, has the ffmpeg output has streams order changed and I can not force
each streams to have the same order as the other vob files, it results that
on concatenating all the vob files, the audio1, audio2 and audio3 streams
changes during play!

The only work around I see is to:
* concat left tail of the film, aka vob 1 to 3 and output it as a left.mp4 (mkv
not supported)
*concat right tail of the film, aka vob 5 to 6 and output it as a right.mp4
* Apply the correction on vob 4 and output as middle.mp4.
* Check and realign the order of every single stream for the three mp4
files.
* concat them.




2014-12-13 19:26 GMT+01:00 Carl Eugen Hoyos <cehoyos at ag.or.at>:
>
> Sub Phil <phil4000n <at> gmail.com> writes:
>
> > First, why I with following cli it can't copy all
> > streams of a vob files?
>
> Writing dvdnav packets is not supported.
>
> > Second, if I copy all streams except dvd_nav_packet
> > ffmpeg -i VTS_01_4_ORIGINAL.vob -map 0:0 -map 0:1
> > -map 0:2 -map 0:3 -map 0:4 -map 0:5 -c:v copy
> > -c:a:0 copy -c:a:1 copy -c:a:2 copy -c:s:0 copy
> > -c:s:1 copy VTS_01_4_N.vob
> >
> > Than why is the ouput order changed?
>
> MPEG-PS streams do not have an order of streams,
> what you see was reported repeatedly but unless
> you can explain a negative effect this has, there
> is no issue.
>
> > P.S. My initial objective is to repair a scratched
> > DVD and concat all its vob into a single one.
>
> mplayer -dumpstream or tools/dvd2concat
>
> Carl Eugen
>
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