Repo created

TMessagesProj/jni/voip/libtgvoip/os/darwin/AudioOutputAudioUnit.cpp

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+//
+// libtgvoip is free and unencumbered public domain software.
+// For more information, see http://unlicense.org or the UNLICENSE file
+// you should have received with this source code distribution.
+//
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <assert.h>
+#include "AudioOutputAudioUnit.h"
+#include "../../logging.h"
+#include "AudioUnitIO.h"
+
+#define BUFFER_SIZE 960
+
+using namespace tgvoip;
+using namespace tgvoip::audio;
+
+AudioOutputAudioUnit::AudioOutputAudioUnit(std::string deviceID, AudioUnitIO* io){
+	isPlaying=false;
+	remainingDataSize=0;
+	this->io=io;
+#if TARGET_OS_OSX
+	io->SetCurrentDevice(false, deviceID);
+#endif
+}
+
+AudioOutputAudioUnit::~AudioOutputAudioUnit(){
+}
+
+void AudioOutputAudioUnit::Start(){
+	isPlaying=true;
+	io->EnableOutput(true);
+}
+
+void AudioOutputAudioUnit::Stop(){
+	isPlaying=false;
+	io->EnableOutput(false);
+}
+
+bool AudioOutputAudioUnit::IsPlaying(){
+	return isPlaying;
+}
+
+void AudioOutputAudioUnit::HandleBufferCallback(AudioBufferList *ioData){
+	int i;
+	for(i=0;i<ioData->mNumberBuffers;i++){
+		AudioBuffer buf=ioData->mBuffers[i];
+		if(!isPlaying){
+			memset(buf.mData, 0, buf.mDataByteSize);
+			return;
+		}
+#if TARGET_OS_OSX
+        unsigned int k;
+		while(remainingDataSize<buf.mDataByteSize/2){
+			assert(remainingDataSize+BUFFER_SIZE*2<sizeof(remainingData));
+			InvokeCallback(remainingData+remainingDataSize, BUFFER_SIZE*2);
+			remainingDataSize+=BUFFER_SIZE*2;
+		}
+		float* dst=reinterpret_cast<float*>(buf.mData);
+		int16_t* src=reinterpret_cast<int16_t*>(remainingData);
+		for(k=0;k<buf.mDataByteSize/4;k++){
+			dst[k]=src[k]/(float)INT16_MAX;
+		}
+		remainingDataSize-=buf.mDataByteSize/2;
+		memmove(remainingData, remainingData+buf.mDataByteSize/2, remainingDataSize);
+#else
+		while(remainingDataSize<buf.mDataByteSize){
+			assert(remainingDataSize+BUFFER_SIZE*2<sizeof(remainingData));
+			InvokeCallback(remainingData+remainingDataSize, BUFFER_SIZE*2);
+			remainingDataSize+=BUFFER_SIZE*2;
+		}
+		memcpy(buf.mData, remainingData, buf.mDataByteSize);
+		remainingDataSize-=buf.mDataByteSize;
+		memmove(remainingData, remainingData+buf.mDataByteSize, remainingDataSize);
+#endif
+	}
+}
+
+#if TARGET_OS_OSX
+void AudioOutputAudioUnit::SetCurrentDevice(std::string deviceID){
+	io->SetCurrentDevice(false, deviceID);
+}
+#endif