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简要介绍了TI的定点多媒体处理芯片TMS320DM642的特点、软硬件开发平台及Ogg/Vorbis音频编解码算法。分析了Ogg/Vorbis编解码算法的工作流程,并重点阐述了基于DM642平台的Ogg/Vorbis音频编解码算法的移植。实验结果表明,移植后的Ogg/Vorbis音频编解码算法能够实现音频文件的编解码。
Briefly introduces TI’s fixed-point multimedia processing chip TMS320DM642 features, hardware and software development platform and Ogg / Vorbis audio codec algorithm. The workflow of Ogg / Vorbis codec algorithm is analyzed, and the porting of Ogg / Vorbis audio codec algorithm based on DM642 platform is emphasized. The experimental results show that the transplanted Ogg / Vorbis audio codec algorithm can realize the encoding and decoding of audio files.