add: 增加Audio相关代码

tests/Audio/AudioDecoder.cpp

@@ -0,0 +1,45 @@
+#include "AudioDecoder.h"
+
+
+AudioDecoder::AudioDecoder():handle_(nullptr)
+        , samplerate_(0)
+        , channels_(2)
+        , samplebit_(16)
+{
+
+}
+
+AudioDecoder::~AudioDecoder(){
+
+}
+
+bool AudioDecoder::init(unsigned char * ADTSHead ,int headLen ){
+    if( handle_ == nullptr ){
+        handle_ = NeAACDecOpen();
+    }
+
+    if( handle_ == nullptr ){
+        return false;
+    }
+
+    long err = NeAACDecInit( handle_ , ( unsigned char *)ADTSHead , headLen ,  &samplerate_, &channels_ );
+
+    if( err != 0 ){
+        return false;
+    }
+
+    return true;
+}
+
+int  AudioDecoder::inputData( unsigned char * data,int len , unsigned char ** outBuffer ){
+
+    NeAACDecFrameInfo frameInfo;
+    *outBuffer = static_cast<unsigned char *>(NeAACDecDecode(handle_, &frameInfo, (unsigned char *) data, len));
+
+    if( frameInfo.error != 0){
+        //ErroL << NeAACDecGetErrorMessage(frameInfo.error) << endl;
+        return -1;
+    }
+
+    return frameInfo.samples*frameInfo.channels;
+}