[M4IF Technotes] aspect ratio info

RUTURAJ CHANDPUR rchandpur tataelxsi.co.in
Mon Jun 17 18:36:03 EDT 2002


Hello Sadaf,
The extended_par is a 4 bit value.
It is equal to 1111, as mentioned in table 6-12 of 14496-2.
Hope this helps.
rgds,
Ruturaj Anand Chandpur
----- Original Message -----
From: sadaf <sadaf.waqas   streaming-networks.com>
To: <Christoph.Stadler   dynapel.de>; <technotes   lists.m4if.org>
Sent: Monday, June 17, 2023 1:40 PM
Subject: [M4IF Technotes] aspect ratio info
> Sir,
> This is in reference to your question put up on mpeg4 Technotes mailing
> list, relating to pixel aspect ratios used in MPEG-4 Visual on feb22,
2002.
> Since I am new in mpeg4 world, and i am trying to parse the video object
> layer bitwise.
>
> Can you tell me the exact value of "extended_par"? As far as i know its a
4
> bit field and when parsing video object layer, a condition comes when
aspect
> ratio info is checked to be equal to extended_par.
>
> I am not quite sure about the valid value of extended_par field. Can you
> help me out. I will be very grateful
>
> thanx in advance...
>
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