[Mp4-tech] gaps_in_frame_num_value_allowed_flag...???

[Deepak Singh]

Dear Experts,
 I have query related to gaps_in_frame_num_value_allowed_flag and frame_num.
 As per my understanding of standard when
 gaps_in_frame_num_value_allowed_flag is 0 then frame_num will be in
non decreasing order and increases till next IDR frame.
The value of frame_num  increase with plus 1 with respect to previous
reference frame.
 Let me put an example for it.
 Lets assume B- frame is not used for reference.
 In h.264 coded bitstream the frames are : (frame_num as per my
 understanding it will be)
 Note: gaps_in_frame_num_value_allowed_flag = 0
 Coded Frame  :  IDR -> P-> P-> B->B-> P-> P->IDR->....
 Frame_num    :  0         1    2     3    3    4    5     0
 My question is for the same sequence if
 gaps_in_frame_num_value_allowed_flag = 1 and non- existing frame
 exists as
 Note: gaps_in_frame_num_value_allowed_flag = 1, NE = Non Existing Frame.
 Coded Frame : IDR -> P-> non-exist frame->P-> B->B->NE->NE-> P-> P->IDR->....
 Frame_num   :  0       1                ?             ?     ?    ?
?     ?       ?     ?     0
 How the frame_num value will behave for the above situation???
 --
 Regards,
 Deepak Singh
-- 
Regards,
Deepak Singh
Visit my blog for cool stuff... http://www.thinknaturally.blogspot.com/
**********************************************************************************************
"If u really aspire for the FIRST place ,then there is no second place
in this world"
************************************************************************************************
My phone:09341097500 Just DIL SE........
 With caresss.