AAC ADTS流解析总结

Posted 2020-09-30

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.csdn.net/jay100500/article/details/52955232 http://blog.csdn.net/leixiaohua1020/article/details/11822537

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