Realization of VCR Functions Based on SP/SI Frame Technology of H.264/AVC
Yeqing Wu, Jia Wang, Yingying Zhu · Jisuanji gongcheng · 2008
The main feature of SP/SI frame of H.264/AVC frames is that identical frames can be reconstructed even when different reference frames are used for prediction. This paper proposes a scheme to implement Video Cassette Recording(VCR) functions of H.264/AVC video by utilizing the SP/SI frame and multi-reference frame. It can eliminate the drifting problem of dual-bitstream technique. Experimental results show that the scheme can reduce the network bandwidth by about 40% under VCR operation compared with traditional one, and PSNR improves over 1 dB.