优化代码

src/Extension/AAC.cpp

@@ -115,6 +115,15 @@ void getAACInfo(const AACFrame &adts,int &iSampleRate,int &iChannel){
     iChannel = adts.channel_configuration;
 }
 
+
+Sdp::Ptr AACTrack::getSdp() {
+    if(!ready()){
+        WarnL << "AAC Track未准备好";
+        return nullptr;
+    }
+    return std::make_shared<AACSdp>(getAacCfg(),getAudioSampleRate());
+}
+
 }//namespace mediakit