[Mp4-tech] How provide random access feature in MPEG4 Simple profile

[Shevach Riabtsev]

Dear experts
According to my understanding of MPEG4 standard, the profile and the
level are signalled as profile_and_level_indication syntax element  in
Visual Object Sequence Start header. This header is sent once per
sequence thus this fact actually disables random access. Indeed, if a
decoder skip the very first picture of a sequence how it can derive
profile and level. 
Is it correct to put Visual Object Sequence Start header at the start of
each I-picture?
Regards, Shevach 
Broadcom
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