[M4IF Technotes] SP L3 bandwidth and VOP ordering questions

Olivier Schaer olivier e-schaer.net
Fri Oct 26 12:47:12 EDT 2001


Sorry for the basic question but I try to clarify my mind..
the bandwidth limitation for Simple Profile L3 is set to 384 kbits/s; my question is :
what happens if we decide to go over this limit and ask our encoder for a video stream exceeding this limit and we still claim to be SP L3? I guess we enter a "no man's 
land" and of course are not MPEG-4 compliant anymore... only our own decoder is going to be able to decode this stream. What happens to the other (compliant) 
decoders? 
I have been told we are not MPEG-4 compliant if we (the encoder) stream I-VOP only. Is that true? I read in the spec. the VOP reodering is very flexible, and am not able 
to get hold on the section describing this requirment.
Thanks in advance
Olivier 


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