[Mp4-tech] MP4 encoder/decoder for live video conference vs. streaming

[Loren Rogers]

Hello,
How does one get around the problems of transporting MPEG4-2 video streams 
for live video conferencing vs. streaming.  The reason I’m asking is because 
there is information that is left out of the VOP and VOP header, like frame 
size (QCIF, CIF, etc…).  I’m not sure what’s normally done for live video 
conferencing.  Whether the VOL, or VO, or both pieces of information is sent 
just once in the beginning of the call, or for every single VOP.  Can 
someone please advise.
Thanks.
/Loren