Hi, You can start by looking at http://tools.ietf.org/html/draft-ietf-mmusic-decoding-dependency-05
As for the layer description you can also look at the draft-ietf-avt-rtp-svc. Roni Even From: [email protected] [mailto:[email protected]] On Behalf Of avinashkoneru Sent: Wednesday, February 04, 2009 11:26 AM To: [email protected] Subject: [Sip] How do we adress this SDP issue in SIP To SIP & SDP experts, Iam having some doubts in RFC4566 (i.e SDP)could you please explain them briefly RFC 4566 PAGE 14 Hierarchical or layered encoding schemes are data streams where the encoding from a single media source is split into a number of layers. As per my understanding the above line says that (Trade off between bandwidth and quality ) Ex : I have a media file of 1 GB size .If I use layered encoding that 1 GB media file could be made into 700k size with some loss of date or 500k size or 1GB only as per users choice? Such layered encodings are normally transmitted in multiple multicast groups to allow multicast pruning How would I know which layer is mapped to which multicast address (and size of each layer)?.. I think this issue is addressed by the protocol above SDP (i.e in SIP or SAP)?.. Could anyone plz let me know .How and where this issue is addressed Thanks and Regards, Avinash Koneru **************************************************************************** *********** This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!
_______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [email protected] for questions on current sip Use [email protected] for new developments on the application of sip
