Low-complexity MP3 decoder based on Broadcom embedded platform  

作　　者：冉川 沈庭芝 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2011年第1期94-99,共6页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(60772066)

摘　　要：A low complexity MP3 decoder based on Broadcom embedded platform was proposed. C code level optimization algorithms on inverse quantization, stereo decoding and alias reduction based on PC were proposed to further reduce the amount of memory usage and the computational complex ity. Furthermore, the executable file of the optimized MP3 decoder was generated under the Linux environment, and transplanted to the set top box based on Broadcom embedded platform. Experi ment results showed that the total time for decoding was reduced on the embedded platform, and the goal of real time and fluent playing of audio files was fulfilled, which demonstrated the effectiveness of the proposed MP3 decoder. The proposed MP3 decoder could be applied in fields such xs the set top box based on Broadcom embedded platform and other portable devices.A low complexity MP3 decoder based on Broadcom embedded platform was proposed. C code level optimization algorithms on inverse quantization, stereo decoding and alias reduction based on PC were proposed to further reduce the amount of memory usage and the computational complex ity. Furthermore, the executable file of the optimized MP3 decoder was generated under the Linux environment, and transplanted to the set top box based on Broadcom embedded platform. Experi ment results showed that the total time for decoding was reduced on the embedded platform, and the goal of real time and fluent playing of audio files was fulfilled, which demonstrated the effectiveness of the proposed MP3 decoder. The proposed MP3 decoder could be applied in fields such xs the set top box based on Broadcom embedded platform and other portable devices.

关 键 词：MP3 decoder algorithm optimization LINUX BROADCOM 

分 类 号：TN912.2[电子电信—通信与信息系统]