Design of parallel HEVC decoder based on Multi-core platform

In this paper, we present a the design of a parallel HEVC decoder based on a Multi-core platform. The proposed method groups HEVC decoding modules into entropy decoding and CTU-row decoding parts for optimal parallelization, considering the characteristic of all parts. Coding tree unit (CTU)-level 2D Wavefront is employed for the CTU-row decoding part. To decrease the delay between the entropy decoding and the CTU-row decoding, task level parallelism (TLP) is also used for these two parts. Compared to sequential execution, the experimental results show that our proposed method achieves an average of more than 6.7 times speed-up for 1920x1080 video sequences without any encoder parallel tools such as Wavefront Parallel Processing (WPP) coding and picture partitioning with tile and slice segments.