[MPlayer-users] Different Video Length depending on the audio chosen

Khelben Blackstaff eye.of.the.8eholder at gmail.com
Thu Nov 20 15:36:05 CET 2008


On Thu, 20 Nov 2008 15:26:34 +0100
Nico Sabbi <Nicola.Sabbi at poste.it> wrote:

> >
> > Is this normal and why it is happening ?
> 
> mostly, and mostly not (it's the usual black magick at work
> when playing mpeg streams).
> 
> You should rely on the data reported by -identify to get the exact
> video duration, at least when playing dvds

Thank you for replying so quickly.

Both "mplayer -identify -frames 0 dvd://1 -aid 128" and
"mplayer -identify -frames 0 dvd://1 -aid 137" report the following.

ID_DVD_TITLE_1_LENGTH=6078.840
ID_LENGTH=6078.84

So, i guess the correct duration is 6078 seconds, but when mencoder
finishes the transcoding the resulting file has 6078 secs if it has ac3
audio and 5971 if it has dts.



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