Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (9): 94-99,112.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Scheduling Algorithm for Rate-Distortion Optimization of H. 264 FMO Stream

Zhou Wei  Ye Wu  Feng Sui-li  Ai Yu-hua   

  1. School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-10-09 Revised:2008-01-10 Online:2008-09-25 Published:2008-09-25
  • Contact: 周卫（1980-），男，博士生，主要从事网络视频传输P2P多媒体网络研究． E-mail:wayzhou@gmail．com
  • About author:周卫（1980-），男，博士生，主要从事网络视频传输P2P多媒体网络研究．
  • Supported by:

    广东省计算机网络重点实验室开放基金资助项目（cn200407）

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Abstract:

As compared with Transmission Control Protocol （TCP）, User Datagram Protocol （UDP） works more timely, but the packet lose limits its application to real-time streaming media transmission. In order to solve this problem, the error resilience of H. 264 bit-stream adopting Flexible Macroblock Order （FMO） is analyzed by ex- periments, and an UDP channel model is established. Moreover, in order to solve the error resilience and the realtime transmission problems, a scheduling algorithm for rate-distortion optimization of H. 264 FMO stream is proposed. By the proposed algorithm, a minimum rate distortion can be achieved because transmission parameters can vary with the UDP channel situation. Simulated results indicate that the proposed algorithm outperforms other scheduling algorithms due to its high transmission performance in UDP channel situation and the friendship of UDP packet to TCP packet.

Key words: rate-distortion optimization, scheduling, streaming media, TCP-friendly