Poster 95: A Heterogeneous HEVC Video Encoder Based on OpenPOWER Acceleration Platform

Authors: Chenhao Gu (Fudan University, Shanghai, State Key Laboratory of ASIC and System; IBM Corporation), Yang Chen (Fudan University, Shanghai, State Key Laboratory of ASIC and System; IBM Corporation), Yanheng Lu (IBM Corporation), Pengfei Gou (IBM Corporation), Yong Lu (IBM Corporation), Yang Dai (IBM Corporation), Yue Xu (IBM Corporation), Yang Liu (IBM Corporation), Yibo Fan (Fudan University, Shanghai, State Key Laboratory of ASIC and System)

Abstract: This poster describes a heterogeneous HEVC video encoder system based on the OpenPOWER platform. Our design leverages the Coherent Accelerator Processor Interface (CAPI) on the OpenPOWER, which provides cache-coherent access for FPGA. This technology highly improves CPU-FPGA data communication bandwidth and programming efficiency. X265 is optimized on the OpenPOWER platform to improve its performance with both architecture specific methods and hardware-acceleration methods. For hardware acceleration, frame-level acceleration and functional-unit-level acceleration are introduced and evaluated in this work.

Best Poster Finalist (BP): no

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