[Mp4-tech] [Video] Regarding Loop Filter

[Vallabha Vasant Hampiholi]

Hello,
            I noticed an interesting thing with the Loopfilter module.
            The parameter MbQ->LFDisableIdc is supposed to give the
information if filter is to be applied at the Slice boundary or not.
            In test vector CI1_FT_B.264 the 1st horizontal edge (dir =1, edge
=0) of the macroblock number 22 (MB 23) lies at the slice edge. 
            (Confirm this by opening the file in Elecard or any other H264
file viewer). 
            But irrespective of this, the loopfilter is still applied to this
edge.   
            And doing further investigation it is found that only the MB's
lying at the 1st row and 1st column are not applied loopfilter at the 1st
edge in both directions and for the rest of the MB's the 
            filtering is applied. Can I know what is the logic used here?
-Regards
P Please consider the environment before printing this mail
Vallabha Hampiholi | Project Lead | MindTree Consulting Ltd. |Global Village,
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