BSAC音频编码器在TI DaVinci平台上的实现  

Implementation of BSAC Audio Encoder Based on TI DaVinci Platform

作　　者：徐兰[1] 吕卫[1] 宋垣[1] 

机构地区：[1]天津大学电视与图像信息研究所,天津300072

出　　处：《电视技术》2012年第15期47-49,93,共4页Video Engineering

摘　　要：BSAC音频编码标准是地面数字多媒体广播(T-DMB)中的关键技术,因此研究BSAC编码器在嵌入式系统上的实现具有很高的应用价值。将优化后的BSAC编码器按TI公司的xDM标准封装为DSP的音频编码组件,并编写了ARM端的多线程应用程序调用BSAC编码器,实现了BSAC编码器在TI公司TMS320DM6446平台上的移植。测试表明,BSAC编码器性能稳定,能够满足音频编码的实时要求。BSAC audio coding standard is a key technology of the terrestrial digital multimedia broadcasting（T-DMB） and research on implementing a BSAC audio encoder on embedded system platform has a great value. A method of encapsulating optimized BSAC encoder into an audio coding component with Tl＇s eXpress Digital Media specification is presented,and developing a multi-threaded program on ARM processor to call the BSAC encoder. Experimental results show that the BSAC encoder running on TI＇s TMS320DM6dd6 platform works stably and meets the real-time demand of audio coding.

关 键 词：BSAC DAVINCI XDM 

分 类 号：TN911.72[电子电信—通信与信息系统]