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Optimization Strategy of MPEG-4 AAC Decoder on a Low-cost SoC
Gao Gugang,Shi Longxing,Pu Hanlai,Zhou Fan
Strategic Study of CAE 2007, Volume 9, Issue 10, Pages 60-64
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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