[Mp4-tech] frame_num, h.264

[Bharat Soni]

Hi,
I don't know if I understood your question correctly. Let me know if
this answer doesn't help you.
The statement means that, if a reference frame picture is coded as two
separate field pictures then  the frame_num for both the fields of
that reference frame will be same. In your case since there are only
frame pictures, frame_num will be different for all the reference
frames.
Regards,
Bharat
On Mon, 31 Jan 2024 16:57:20 +0530, Sastry_KRK <Sastry_KRK satyam.com> wrote:
> 
> hello experts,
> 
> frame_num may not take a value equal to prevREfframeNum, in addition to two
> other conditions ,  the following condition is true
> 
> " the current picture and the preceding reference picture are reference
> fields having opposite parity "
> 
> suppose only frames support is there and no support for fields, the
> frame_num will never be equal to prevREfframeNum.
> 
> could any one explain this behavior
> 
> regards
> 
> KRK Sastry
> 
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