74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
//
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// libtgvoip is free and unencumbered public domain software.
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// For more information, see http://unlicense.org or the UNLICENSE file
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// you should have received with this source code distribution.
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//
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include "AudioUnitIO.h"
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#include "AudioInputAudioUnit.h"
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#include "../../logging.h"
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#define BUFFER_SIZE 960
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using namespace tgvoip;
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using namespace tgvoip::audio;
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AudioInputAudioUnit::AudioInputAudioUnit(std::string deviceID, AudioUnitIO* io){
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remainingDataSize=0;
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isRecording=false;
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this->io=io;
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#if TARGET_OS_OSX
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io->SetCurrentDevice(true, deviceID);
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#endif
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}
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AudioInputAudioUnit::~AudioInputAudioUnit(){
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}
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void AudioInputAudioUnit::Start(){
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isRecording=true;
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io->EnableInput(true);
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}
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void AudioInputAudioUnit::Stop(){
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isRecording=false;
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io->EnableInput(false);
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}
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void AudioInputAudioUnit::HandleBufferCallback(AudioBufferList *ioData){
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int i;
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for(i=0;i<ioData->mNumberBuffers;i++){
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AudioBuffer buf=ioData->mBuffers[i];
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#if TARGET_OS_OSX
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assert(remainingDataSize+buf.mDataByteSize/2<10240);
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float* src=reinterpret_cast<float*>(buf.mData);
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int16_t* dst=reinterpret_cast<int16_t*>(remainingData+remainingDataSize);
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for(int j=0;j<buf.mDataByteSize/4;j++){
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dst[j]=(int16_t)(src[j]*INT16_MAX);
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}
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remainingDataSize+=buf.mDataByteSize/2;
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#else
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assert(remainingDataSize+buf.mDataByteSize<10240);
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memcpy(remainingData+remainingDataSize, buf.mData, buf.mDataByteSize);
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remainingDataSize+=buf.mDataByteSize;
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#endif
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while(remainingDataSize>=BUFFER_SIZE*2){
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InvokeCallback((unsigned char*)remainingData, BUFFER_SIZE*2);
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remainingDataSize-=BUFFER_SIZE*2;
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if(remainingDataSize>0){
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memmove(remainingData, remainingData+(BUFFER_SIZE*2), remainingDataSize);
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}
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}
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}
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}
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#if TARGET_OS_OSX
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void AudioInputAudioUnit::SetCurrentDevice(std::string deviceID){
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io->SetCurrentDevice(true, deviceID);
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}
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#endif
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