[M4IF Technotes] rtp pointers for FGS-coded Mpeg-4 streaming

[philippe.gentric philips.com]

have a look at:
http://www.ietf.org/internet-drafts/draft-ietf-avt-mpeg4-multisl-04.txt 
but I dont describe explicitely FGS, 
EL and BL are supposed to be just 2 different RTP streams ... 
the rest of the RTP framework can be used to provide, if required, 
redundancy and/or FEC etc .... 
my concern is rather for session description .... 
specifically -except using the OD framework ;-)- 
I am not aware of a way to describe (typically in SDP)
that one stream is EL and the other is BL, 
(for example the streamtype = 4   for both, right ?) 
so you also need to convey at least one AU of OD ? 
or can do it in the IOD ?
see also:
http://search.ietf.org/internet-drafts/draft-singer-mpeg4-ip-04.txt 
regards, 
Philippe Gentric
Software Architect
Philips MP4Net
philippe.gentric   philips.com
http://www.mpeg-4.philips.com
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