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高质量的音频解码库LIBMAD

于 2022-09-07 发布 文件大小:490.60 kB
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代码说明:

应用背景LIBMAD 是一个高质量的音频解码库,MAD 的全称是 MPEG Audio Decoder。LIBMAD 目前 支持 MPEG-1、低采样率的 MPEG-2 和 MPEG2.5 格式的 LayerⅠ、LayerⅡ、LayerⅢ(即 MP3) 的解码。 MAD 具有如下特性: ●高精度的 24-BIT PCM 输出; ●100%使用定点运算; ●完全基于 ISO/IEC 标准; ●支持 GNU GPL 协议。  关键技术MAD 完全采用 C 语言编写 (里面的 IMDCT 部分和乘法运算可根据平台不同使用汇编来加 快运算速度),它对 MP3 解码算法做了很多优化,非常适合在没有浮点支持的嵌入式环境下 使用。利用 MAD 提供的 API,我们可以很容易的实现音频解码。

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