[FFmpeg-user] NAV PACK System Clock Refrence.

Francois Visagie francois.visagie at gmail.com
Thu Nov 22 17:08:13 CET 2012


Hi,

> -----Original Message-----
> From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-
> bounces at ffmpeg.org] On Behalf Of kifayat ullah
> Sent: 22 November 2012 17:06
> To: F Fmpeg user questions and RTFMs
> Cc: Carl Eugen Hoyos
> Subject: [FFmpeg-user] NAV PACK System Clock Refrence.
> 
> Hello Carl,
> 
> Accroding to DVD Standards Each Title set first VOB should always contain
> System clock refrence value = 0 in its first Navigation Pack.
> 
> When I try to create a vob from ffmpeg command line using following
> command it doesn't seems valid.
> 
>  ffmpeg -i VTS_01_1.VOB -target ntsc-dvd out.vob
> 
> I try to look the value of Nav Pack 0 @ 000000 in VobEdit tool and it
seems
> other then 0.

Isn't it really up to your DVD authoring program to correctly identify and
set the first title set VOB? Maybe I'm misguided, but I can't see how ffmpeg
would know where in the DVD layout this particular VOB would end up.

Or aren't you authoring to DVD but still want the ffmpeg output
DVD-compliant for some reason?

> 
> Any idea how to fix this.
> 
> Many thanks
> 
> kifayat
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