[Mp4-tech] MPEG4 short video header

[Ram]

Hi there,
I had a question about the MPEG4 short video header, if in a IP video
communication system a stream encoded using MPEG4 with short header is sent,
how would one know that it's MPEG4 with short video header and not H263.
Is there any special indication in the SIP exchanget that it's MPEG4 with
short video header or it's mandatory that along with the PSC the MPEG4
decoder configuration
information also comes along so that we can determing if short video header
is used by parsing the VOL header.
The reason the above question arises is that the depacketization routine is
different if a stream encoded with MPEG4 short video header packetized usign
RFC 2190 as compared to MPEG4 packetized using RFC 3016
Thanks,
Ram
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