[FFmpeg-user] NAV PACK System Clock Refrence.
kifayat.ullah at yahoo.com
Thu Nov 22 17:22:47 CET 2012
Thanks for replying.
I am thinking same as you, but what I have observed is that SCR in Nav Packwould effect Video Pack SCR, which gives me clue that it might be set by FFMPEG while creating VOB. Authring tool obviously fill other informationwhich are left blank.
Muxrate value in NAV Pack is set by ffmpeg as well, which remain same in Video Packheader as well.
From: Francois Visagie <francois.visagie at gmail.com>
To: 'FFmpeg user questions' <ffmpeg-user at ffmpeg.org>
Sent: Thursday, 22 November 2012, 16:08
Subject: Re: [FFmpeg-user] NAV PACK System Clock Refrence.
> -----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
> 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
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> ffmpeg-user at ffmpeg.org
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