Abstract
In this paper, a segment constraint ABR algorithm for HEVC based on x265 platform is proposed for the practical situation when the video needs to be transmitted through network with bitrate stability for each segment. Default ABR algorithm in x265 and R-λ model are integrated and a segment-based rate control scheme is developed. The proposed algorithm can achieve an average of 46% segment bitrate fluctuation reduction with tolerable increase in encoding time and negligible changes in PSNR and QP.
Li Song
Professor, IEEE Senior Member
Professor, Doctoral Supervisor, the Deputy Director of the Institute of Image Communication and Network Engineering of Shanghai Jiao Tong University, the Double-Appointed Professor of the Institute of Artificial Intelligence and the Collaborative Innovation Center of Future Media Network, the Deputy Secretary-General of the China Video User Experience Alliance and head of the standards group.