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학술지 A Practical RTP Packetization Scheme for SVC Video Transport over IP Networks
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저자
서광덕, 김진수, 정순흥, 유정주
발행일
201004
출처
ETRI Journal, v.32 no.2, pp.281-291
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.10.1409.0031
협약과제
10MR2400, 유무선 환경의 개방형 IPTV(IPTV 2.0) 기술개발, 류원
초록
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. Copyright © 2010 ETRI.
키워드
RTP packetization, RTP payload format, Scalable video coding, Unicast/multicast
KSP 제안 키워드
Enhancement layer, IP networks, Multicast transport, Network abstraction layer, Real-Time Transport Protocol, Scalable Video Coding, Temporal relationship, Video transport, computational load, spatio-Temporal