2007, Volume 9, Issue 10
Strategic Study of CAE >> 2007, Volume 9, Issue 10
Optimization Strategy of MPEG-4 AAC Decoder on a Low-cost SoC
National ASIC System Engineering Research Center, Southeast University, Nanjing 210096, China
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Abstract
This paper proposes software optimization strategies using a low-cost SoC which include float-point to fix-point conversion scheme based on statistical analysis and performance oriented customizing scheme for on-chip memory's capacity, and presents optimization methodology based on these strategies for computation intensive applications. the MPEG-4 AAC decoding in real-time is implemented as a case study to illustrate the efficiency of the proposed optimization strategy in both performance and cost. The strategy and methodology also can be used to optimize other DSP applications.
Keywords
software optimization ; SoC ; FFC ; on-chip memory ; AAC
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