关键词: H.264AVC, 视频编码, 帧内预测, 帧间预测, 并行, 多核处理器

Abstract:

A new fast RDO inter frame mode decision algorithm based on thread level parallelization is proposed in this paper. It can effectively solve the data dependence between H.264 Intra Mode Decision and the inter frame mode decision, the fast RDO inter frame mode decision algorithm based on thread level parallelization can be proposed. In addition, the proposed method can be easily mapped to hardware architectures which use multi-core processors. The paper also uses the improved bit rate estimation algorithm and a low complexity integer distortion estimation method. Experimental results show that the algorithm in this paper reduces the total encoding time, and reduces the computational overhead of motion estimation ME, while maintaining very low PSNR loss and bit rate increment.

Key words: H.264 AVC video coding;frame prediction;inter-frame prediction, parallel, multi core processors