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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (1 ): 6-    DOI: 10.1631/jzus.2007.A0036
    
Macroblock-level decoding and deblocking method and its pipeline implementation in H.264 decoder SOC design
WANG Shu-hui, LIN Tao, LIN Zheng-hui
Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
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Abstract  This paper presents a macroblock-level (MB-level) decoding and deblocking method for supporting the flexible macroblock ordering (FMO) and arbitrary slice ordering (ASO) bit streams in H.264 decoder and its SOC/ASIC implementation. By searching the slice containing the current macroblock in the bit stream and switching slices correctly, MBs can be decoded in the raster scan order, while the decoding process can immediately begin as long as the slice containing the current MB is available. This architectural modification enables the MB-level decoding and deblocking 3-stage pipeline, and saves about 20% of SDRAM bandwidth. Implementation results showed that the design achieves real-time decoding of 1080HD (1920×1088@30 fps) at a system clock of 166 MHz.

Key words： Flexible macroblock ordering (FMO)      Arbitrary slice ordering (ASO)      System-on-chip (SOC)      Raster scan order      Pipeline     
Received: 04 April 2006     
CLC:  TN919.81  
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WANG Shu-hui
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LIN Zheng-hui
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WANG Shu-hui, LIN Tao, LIN Zheng-hui. Macroblock-level decoding and deblocking method and its pipeline implementation in H.264 decoder SOC design. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(1 ): 6-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A0036     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I1 /6

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