[Mp4-tech] Meaning of Fields in the MPEG4 Visual bitstream

[Aparna Sundar]

Hi All,
Iam trying to parse the MPEG4 Visual bitstream based on the bitstream syntax
specified. Have some confusion with regard to the following fields in a VOP
frame
1.VOP time increment: In the actual stream/recording, the rate may not match
with the rate originally specified at the beginning
(vop_time_increment_resolution). So there's this vop_time_increment field
that mentions how many ticks have elapsed since the last synchronization
(which I think corresponds to the intra period).
Unfortunately,iam unable to understand  what this means. How should I
calculate the number of bits occupied by VOP time increment given
VOP_timeincement resolution...
Would appreciate any insights/solution to my problem.
Regards,
Aparna Sundar
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