[M4IF Technotes] deblocking/deringing usage model

[Gaurav Aggarwal]

hi all,
would appreciate if someone could talk about deblocking/deringing
filters. are decoders using them for SP or ASP? does anybody
implement them in silicon as yet?
what is their promised benefits? at what kind of bitrates would
one really need these filters? our gut feeling is that at broadcast
quality video (over satellite/cable) at 5Mbps and higher, we could do 
without them. does that sound reasonable?
any views or pointers to technical papers would be appreciated.
thanks,
gaurav
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