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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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Lundin, H.F., Westin, P. (2012). Sending the Right Signals: How to Deal with the Lack of Signaling with RTP/RTCP for H.264 SVC. In: Rodriguez, J., Tafazolli, R., Verikoukis, C. (eds) Mobile Multimedia Communications. MobiMedia 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 77. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35155-6_48
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DOI: https://doi.org/10.1007/978-3-642-35155-6_48
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-35154-9
Online ISBN: 978-3-642-35155-6
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