AAC ADTS流解析总结

这里列出Android里将aac编码器输出的音频帧加上ADTS头的代码：

+ int tmpFd; + tmpFd = ::open("/data/src.aac", O_WRONLY | O_APPEND ); + if ( tmpFd < 0 ) { +    LOGE("No dump decode file %s",strerror(errno)); + } + else + { +    unsigned char adts_hdr[7] = {0xff, 0xf9, 0x5c, 0x80, 0x00,0x1f, 0xfc}; + +    adts_hdr[3] = 0x80 | ((mConfig->inputBufferCurrentLength >> 11) & 3); +    adts_hdr[4] = (mConfig->inputBufferCurrentLength >> 3) & 0xff; +    adts_hdr[5] = ((mConfig->inputBufferCurrentLength & 7) << 5) | 0x1f; + +    ::write(tmpFd,adts_hdr, 7); +    ::write(tmpFd,(const char *)mConfig->pInputBuffer , mConfig->inputBufferCurrentLength); +    ::close(tmpFd); + } AAC参考知识： http://blog.youkuaiyun.com/axdc_qa_team/article/details/4271043    （除协议外，非常详细的文章） http://blog.youkuaiyun.com/jay100500/article/details/52955232       （adts协议） http://blog.youkuaiyun.com/leixiaohua1020/article/details/11822537 //aac header http://yeyingxian.blog.163.com/blog/static/344712420134485613752/ https://wiki.multimedia.cx/index.php?title=MPEG-4_Audio    本文转自 曾永刚 51CTO博客，原文链接:http://blog.51cto.com/zyg0227/1952766