Abstract
This paper presents the architecture and implementation of a H.264 decoder SOC system. The SOC system has mixed hardware arithmetic unit and software instruction based on co-processors, which are designed by analyzing the major arithmetic units of H.264 decoder. The co-processor approach can meet certain performance requirement with high scalability, which can be easy for system upgrade and expansion in the future. The verification result shows that the SOC system can speed up H.264 decoding process by saving more than 75% of the decoding time.
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