[Mp4-tech] Mpeg4- part2 video time issue

[Veni Soni]

Hi asif,
You incresed modulo_time_base for everyone. But it
says modulo_time_base is respect to the previous
time_code of gov or previous modulo_time_base of
previous I. So after I that sould reset.
Regards
veni
--- asif <asifali tataelxsi.co.in> wrote:
> Hello Veni
> it depends on your vop_time_increment_resolution
> (VOL header)
> 
> if it is 3 ticks(3 ticks/second)
> frames                   I      P      P      I   P 
>  P   1 ...
> molulo_time_base         0      0      0      1   1 
>  1   2...
> vop_time_increment       1      2      3      1   2 
>  3   1...
> 
> if it is 4 ticks(4 ticks/second)
> frames                   I      P      P      I   P 
>  P   1 ...
> molulo_time_base         0      0      0      0   1 
>  1   1 ...
> vop_time_increment       1      2      3      4   1 
>  2   3 ...
> ...
> RGDS
> 	Asif
> 
> 
> 
> -----Original Message-----
> From: mp4-tech-bounces lists.mpegif.org
> [mailto:mp4-tech-bounces lists.mpegif.org]On Behalf
> Of Veni Soni
> Sent: Monday, July 19, 2023 12:27 PM
> To: mp4list
> Subject: [Mp4-tech] Mpeg4- part2 video time issue
> 
> 
> Folks:
> 
> There is a ambiguity regarding the
> vop_time_increment.
> Say as for example difference between each frame is
> 1
> tick of vop_time_increment_resolution. Then what
> should be the value of vop_time_increment of last I
> frame(shown below). Whether it should be 1 or 4.
> Assume there is no GOV inbetween.
> 
> frames                   I      P      P      I
> molulo_time_base         0      0      0      0
> vop_time_increment       1      2      3      1/4
> 
> veni
> enJOY life
> 
> 
> 
> 
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