Intel/DVI ADPCM coder/decoder. The algorithm for this coder was taken from the IMA Compatability Project proceedings-Intel/DVI ADPCM coder/decoder. The algorithm for this coder was taken from the IMA Compatability Project proceedings

从国外网站上下载的g.728的c实现源代码，不需要intel的ipp扩展-C realization of the source code downloaded the website of G.728, does not require the Intel IPP extension