文章基本信息

标题：A Practical RTP Packetization Scheme for SVC Video Transport over IP Networks
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作者：Seo, Kwang-Deok ; Kim, Jin-Soo ; Jung, Soon-Heung 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2010
卷号：32
期号：2
页码：281-291
DOI：10.4218/etrij.10.1409.0031
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：Scalable video coding (SVC) has been standardized as an extension of the H.264/AVC standard. This paper proposes a practical real-time transport protocol (RTP) packetization scheme to transport SVC video over IP networks. In combined scalability of SVC, a coded picture of a base or scalable enhancement layer is produced as one or more video layers consisting of network abstraction layer (NAL) units. The SVC NAL unit header contains a (DID, TID, QID) field to identify the association of each SVC NAL unit with its scalable enhancement layer without parsing the payload part of the SVC NAL unit. In this paper, we utilize the (DID, TID, QID) information to derive hierarchical spatio-temporal relationship of the SVC NAL units. Based on the derivation using the (DID, TID, QID) field, we propose a practical RTP packetization scheme for generating single RTP sessions in unicast and multicast transport of SVC video. The experimental results indicate that the proposed packetization scheme can be efficiently applied to transport SVC video over IP networks with little induced delay, jitter, and computational load.
关键词：Scalable video coding;unicast/multicast;RTP packetization;RTP payload format