10 April 2018 A novel parallel pipeline structure of VP9 decoder
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Proceedings Volume 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017); 1061543 (2018) https://doi.org/10.1117/12.2304688
Event: Ninth International Conference on Graphic and Image Processing, 2017, Qingdao, China
Abstract
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.
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Huabiao Qin, Wu Chen, Sijun Yi, Yunfei Tan, Huan Yi, "A novel parallel pipeline structure of VP9 decoder", Proc. SPIE 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017), 1061543 (10 April 2018); doi: 10.1117/12.2304688; https://doi.org/10.1117/12.2304688
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