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A hardware/software co-design approach for multiple-standard video bitstream parsing

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4 Author(s)
Sha Shen ; State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China ; Huibo Zhong ; Yibo Fan ; Xiaoyang Zeng

In this paper, a hardware/software co-design approach is proposed to parse the video bitstream which conforms to various video compression standards. The layered structure of the syntax elements in video bitstreams is analyzed. Then a hardware/software partition is proposed accordingly. Due to the high data rate, syntax elements in slice data and lower layers are commonly parsed by hardware. As for syntax elements in slice header and upper layers, we proposed a hw/sw co-design approach in order to combine the advantage of hardware acceleration and software flexibility. specific hardware accelerators are designed to parse these codes. But the parsing process of these codes in slice header and upper layer is controlled by software instead of hardware Finite state machine (FSM). This approach can speed up the process of Variable-Length Decoding (VLD) while it still has the flexibility to support multiple video coding standards.

Published in:

ASIC (ASICON), 2011 IEEE 9th International Conference on

Date of Conference:

25-28 Oct. 2011