| BSAC音频编码器在TI DaVinci平台上的实现 |
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| 引用本文： | 徐兰,吕卫,宋垣.BSAC音频编码器在TI DaVinci平台上的实现[J].电视技术,2012,36(15):47-49,93. |
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| 作者姓名： | 徐兰 吕卫 宋垣 |
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| 作者单位： | 天津大学电视与图像信息研究所,天津,300072 |
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| 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。
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| 关 键 词： | BSAC DaVinci xDM |
| 收稿时间： | 2012/2/24 0:00:00 |
| 修稿时间： | 3/27/2012 7:53:48 AM |
Implementation of BSAC audio encoder Based on TI DaVinci Platform |
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| Xu Lan,Lu Wei and song yuan.Implementation of BSAC audio encoder Based on TI DaVinci Platform[J].Tv Engineering,2012,36(15):47-49,93. |
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| Authors: | Xu Lan Lu Wei and song yuan |
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| Affiliation: | Institute of TV & Image Information, Tianjin University,Institute of TV & Image Information, Tianjin University,Nanjing Artillery Academy,LangFang Campus |
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| Abstract: | 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. This paper presents a method of encapsulating optimized BSAC encoder into an audio coding component with TI's eXpress Digital Media specification, 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 TMS320DM6446 platform works stably and meets the real-time demand of audio coding. |
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| Keywords: | BSAC DaVinci xDM |
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