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A Novel Parallel Pipeline Structure of VP9 Decoder

机译:VP9解码器的新型并行流水线结构

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To improve the efficiency of VP9 decoder, a novel parallel pipeline structure of VP9 decoder is presented in this paper. According to the decoding workflow, VP9 decoder can be divided into sub-modules which include entropy decoding, inverse quantization, inverse transform, intra prediction, inter prediction, deblocking and pixel adaptive compensation. By analyzing the computing time of each module, hotspot modules are located and the causes of low efficiency of VP9 decoder can be found. Then, a novel pipeline decoder structure is designed by using mixed parallel decoding methods of data division and function division. The experimental results show that this structure can greatly improve the decoding efficiency of VP9.
机译:为了提高VP9解码器的效率,提出了一种新颖的VP9解码器并行流水线结构。根据解码工作流程,VP9解码器可分为多个子模块,这些子模块包括熵解码,逆量化,逆变换,帧内预测,​​帧间预测,解块和像素自适应补偿。通过分析每个模块的计算时间,可以确定热点模块的位置,并找出导致VP9解码器效率低下的原因。然后,采用数据分割和功能分割的混合并行解码方法,设计了一种新颖的流水线解码器结构。实验结果表明,该结构可以大大提高VP9的解码效率。

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