Research Article
Sending the Right Signals: How to Deal with the Lack of Signaling with RTP/RTCP for H.264 SVC
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@INPROCEEDINGS{10.1007/978-3-642-35155-6_48, author={Henrik Lundin and Patrik Westin}, title={Sending the Right Signals: How to Deal with the Lack of Signaling with RTP/RTCP for H.264 SVC}, proceedings={Impact of Scalable Video Coding on Multimedia Provisioning}, proceedings_a={SVCVISION}, year={2012}, month={12}, keywords={H.264 SVC RTP/AVPF TMMBR}, doi={10.1007/978-3-642-35155-6_48} }- Henrik Lundin
Patrik Westin
Year: 2012
Sending the Right Signals: How to Deal with the Lack of Signaling with RTP/RTCP for H.264 SVC
SVCVISION
Springer
DOI: 10.1007/978-3-642-35155-6_48
Abstract
H.264 scalable video coding (SVC) used in real-time video conferencing is considered. A number of conference participants encode SVC streams and send them to a conference router. The router forwards the streams to all receivers, after pruning the stream to accommodate the downlink limitations. As the streams traverse unmanaged IP networks (e.g., the Internet), the available bandwidth will vary over time. The conference router can track the variations and calculate suitable layer operation points, but the signaling means to feed this information back to the sending participants are lacking. This paper proposes a solution to this lack of signaling through an extension of the RTP/AVPF feedback framework.
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