[M4IF Technotes] B-VOPs in Simple-Scalable Profile ?

[Dhinesh]

Hi,
MPEG-4 Video Simple-Profile does not include
B-Frame.
Advanced-Simple-Profile and Core-Profile and
higher profiles include B-Frame.
Then shoudn't Simple-Scalable-Profile be
Simple-Profile with Scalability?
Why should it include B-Frame?
Ref:
"Table 9-1 -- Tools for Version 1 Visual Object
Types" in
"ISO/IEC 14496-2:2001(E)".
Regards
Dhinesh