Repo created

TMessagesProj/jni/voip/libtgvoip/os/darwin/AudioInputAudioUnit.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 <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include "AudioUnitIO.h"
+#include "AudioInputAudioUnit.h"
+#include "../../logging.h"
+
+#define BUFFER_SIZE 960
+
+using namespace tgvoip;
+using namespace tgvoip::audio;
+
+AudioInputAudioUnit::AudioInputAudioUnit(std::string deviceID, AudioUnitIO* io){
+	remainingDataSize=0;
+	isRecording=false;
+	this->io=io;
+#if TARGET_OS_OSX
+	io->SetCurrentDevice(true, deviceID);
+#endif
+}
+
+AudioInputAudioUnit::~AudioInputAudioUnit(){
+	
+}
+
+void AudioInputAudioUnit::Start(){
+	isRecording=true;
+	io->EnableInput(true);
+}
+
+void AudioInputAudioUnit::Stop(){
+	isRecording=false;
+	io->EnableInput(false);
+}
+
+void AudioInputAudioUnit::HandleBufferCallback(AudioBufferList *ioData){
+	int i;
+	for(i=0;i<ioData->mNumberBuffers;i++){
+		AudioBuffer buf=ioData->mBuffers[i];
+#if TARGET_OS_OSX
+		assert(remainingDataSize+buf.mDataByteSize/2<10240);
+		float* src=reinterpret_cast<float*>(buf.mData);
+		int16_t* dst=reinterpret_cast<int16_t*>(remainingData+remainingDataSize);
+		for(int j=0;j<buf.mDataByteSize/4;j++){
+			dst[j]=(int16_t)(src[j]*INT16_MAX);
+		}
+		remainingDataSize+=buf.mDataByteSize/2;
+#else
+		assert(remainingDataSize+buf.mDataByteSize<10240);
+		memcpy(remainingData+remainingDataSize, buf.mData, buf.mDataByteSize);
+		remainingDataSize+=buf.mDataByteSize;
+#endif
+		while(remainingDataSize>=BUFFER_SIZE*2){
+			InvokeCallback((unsigned char*)remainingData, BUFFER_SIZE*2);
+			remainingDataSize-=BUFFER_SIZE*2;
+			if(remainingDataSize>0){
+				memmove(remainingData, remainingData+(BUFFER_SIZE*2), remainingDataSize);
+			}
+		}
+	}
+}
+
+#if TARGET_OS_OSX
+void AudioInputAudioUnit::SetCurrentDevice(std::string deviceID){
+	io->SetCurrentDevice(true, deviceID);
+}
+#endif