320 lines
12 KiB
C++
320 lines
12 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 <stdio.h>
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#include "AudioUnitIO.h"
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#include "AudioInputAudioUnit.h"
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#include "AudioOutputAudioUnit.h"
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#include "../../logging.h"
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#include "../../VoIPController.h"
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#include "../../VoIPServerConfig.h"
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#define CHECK_AU_ERROR(res, msg) if(res!=noErr){ LOGE(msg": OSStatus=%d", (int)res); failed=true; return; }
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#define BUFFER_SIZE 960 // 20 ms
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#if TARGET_OS_OSX
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#define INPUT_BUFFER_SIZE 20480
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#else
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#define INPUT_BUFFER_SIZE 10240
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#endif
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#define kOutputBus 0
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#define kInputBus 1
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#if TARGET_OS_OSX
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extern "C" {
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OSStatus AudioDeviceDuck(AudioDeviceID inDevice,
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Float32 inDuckedLevel,
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const AudioTimeStamp* __nullable inStartTime,
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Float32 inRampDuration) __attribute__((weak_import));
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}
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#endif
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using namespace tgvoip;
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using namespace tgvoip::audio;
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AudioUnitIO::AudioUnitIO(std::string inputDeviceID, std::string outputDeviceID){
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input=NULL;
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output=NULL;
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inputEnabled=false;
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outputEnabled=false;
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failed=false;
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started=false;
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inBufferList.mBuffers[0].mData=malloc(INPUT_BUFFER_SIZE);
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inBufferList.mBuffers[0].mDataByteSize=INPUT_BUFFER_SIZE;
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inBufferList.mNumberBuffers=1;
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#if TARGET_OS_IPHONE
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DarwinSpecific::ConfigureAudioSession();
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#endif
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OSStatus status;
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AudioComponentDescription desc;
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AudioComponent inputComponent;
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desc.componentType = kAudioUnitType_Output;
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desc.componentSubType = kAudioUnitSubType_VoiceProcessingIO;
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desc.componentFlags = 0;
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desc.componentFlagsMask = 0;
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desc.componentManufacturer = kAudioUnitManufacturer_Apple;
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inputComponent = AudioComponentFindNext(NULL, &desc);
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status = AudioComponentInstanceNew(inputComponent, &unit);
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UInt32 flag=1;
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#if TARGET_OS_IPHONE
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status = AudioUnitSetProperty(unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, kOutputBus, &flag, sizeof(flag));
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CHECK_AU_ERROR(status, "Error enabling AudioUnit output");
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status = AudioUnitSetProperty(unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, kInputBus, &flag, sizeof(flag));
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CHECK_AU_ERROR(status, "Error enabling AudioUnit input");
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#endif
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#if TARGET_OS_IPHONE
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flag=ServerConfig::GetSharedInstance()->GetBoolean("use_ios_vpio_agc", true) ? 1 : 0;
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#else
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flag=ServerConfig::GetSharedInstance()->GetBoolean("use_osx_vpio_agc", true) ? 1 : 0;
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#endif
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status=AudioUnitSetProperty(unit, kAUVoiceIOProperty_VoiceProcessingEnableAGC, kAudioUnitScope_Global, kInputBus, &flag, sizeof(flag));
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CHECK_AU_ERROR(status, "Error disabling AGC");
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AudioStreamBasicDescription audioFormat;
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audioFormat.mSampleRate = 48000;
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audioFormat.mFormatID = kAudioFormatLinearPCM;
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#if TARGET_OS_IPHONE
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audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked | kAudioFormatFlagsNativeEndian;
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audioFormat.mBitsPerChannel = 16;
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audioFormat.mBytesPerPacket = 2;
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audioFormat.mBytesPerFrame = 2;
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#else // OS X
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audioFormat.mFormatFlags = kAudioFormatFlagIsFloat | kAudioFormatFlagIsPacked | kAudioFormatFlagsNativeEndian;
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audioFormat.mBitsPerChannel = 32;
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audioFormat.mBytesPerPacket = 4;
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audioFormat.mBytesPerFrame = 4;
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#endif
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audioFormat.mFramesPerPacket = 1;
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audioFormat.mChannelsPerFrame = 1;
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status = AudioUnitSetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kOutputBus, &audioFormat, sizeof(audioFormat));
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CHECK_AU_ERROR(status, "Error setting output format");
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status = AudioUnitSetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &audioFormat, sizeof(audioFormat));
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CHECK_AU_ERROR(status, "Error setting input format");
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AURenderCallbackStruct callbackStruct;
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callbackStruct.inputProc = AudioUnitIO::BufferCallback;
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callbackStruct.inputProcRefCon = this;
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status = AudioUnitSetProperty(unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, kOutputBus, &callbackStruct, sizeof(callbackStruct));
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CHECK_AU_ERROR(status, "Error setting output buffer callback");
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status = AudioUnitSetProperty(unit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, kInputBus, &callbackStruct, sizeof(callbackStruct));
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CHECK_AU_ERROR(status, "Error setting input buffer callback");
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#if TARGET_OS_OSX
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CFRunLoopRef theRunLoop = NULL;
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AudioObjectPropertyAddress propertyAddress = { kAudioHardwarePropertyRunLoop,
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kAudioObjectPropertyScopeGlobal,
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kAudioObjectPropertyElementMaster };
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status = AudioObjectSetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, sizeof(CFRunLoopRef), &theRunLoop);
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propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
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propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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propertyAddress.mElement = kAudioObjectPropertyElementMaster;
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AudioObjectAddPropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioUnitIO::DefaultDeviceChangedCallback, this);
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propertyAddress.mSelector = kAudioHardwarePropertyDefaultInputDevice;
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AudioObjectAddPropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioUnitIO::DefaultDeviceChangedCallback, this);
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#endif
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input=new AudioInputAudioUnit(inputDeviceID, this);
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output=new AudioOutputAudioUnit(outputDeviceID, this);
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}
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AudioUnitIO::~AudioUnitIO(){
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#if TARGET_OS_OSX
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AudioObjectPropertyAddress propertyAddress;
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propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
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propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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propertyAddress.mElement = kAudioObjectPropertyElementMaster;
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AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioUnitIO::DefaultDeviceChangedCallback, this);
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propertyAddress.mSelector = kAudioHardwarePropertyDefaultInputDevice;
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AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioUnitIO::DefaultDeviceChangedCallback, this);
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#endif
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AudioOutputUnitStop(unit);
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AudioUnitUninitialize(unit);
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AudioComponentInstanceDispose(unit);
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free(inBufferList.mBuffers[0].mData);
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delete input;
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delete output;
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}
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OSStatus AudioUnitIO::BufferCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData){
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((AudioUnitIO*)inRefCon)->BufferCallback(ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, ioData);
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return noErr;
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}
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void AudioUnitIO::BufferCallback(AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 bus, UInt32 numFrames, AudioBufferList *ioData){
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if(bus==kOutputBus){
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if(output && outputEnabled){
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output->HandleBufferCallback(ioData);
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}else{
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memset(ioData->mBuffers[0].mData, 0, ioData->mBuffers[0].mDataByteSize);
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}
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}else if(bus==kInputBus){
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inBufferList.mBuffers[0].mDataByteSize=INPUT_BUFFER_SIZE;
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AudioUnitRender(unit, ioActionFlags, inTimeStamp, bus, numFrames, &inBufferList);
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if(input && inputEnabled){
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input->HandleBufferCallback(&inBufferList);
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}
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}
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}
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void AudioUnitIO::EnableInput(bool enabled){
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inputEnabled=enabled;
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StartIfNeeded();
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}
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void AudioUnitIO::EnableOutput(bool enabled){
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outputEnabled=enabled;
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StartIfNeeded();
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#if TARGET_OS_OSX
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if(actualDuckingEnabled!=duckingEnabled){
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actualDuckingEnabled=duckingEnabled;
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AudioDeviceDuck(currentOutputDeviceID, duckingEnabled ? 0.177828f : 1.0f, NULL, 0.1f);
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}
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#endif
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}
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void AudioUnitIO::StartIfNeeded(){
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if(started)
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return;
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started=true;
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OSStatus status = AudioUnitInitialize(unit);
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CHECK_AU_ERROR(status, "Error initializing AudioUnit");
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status=AudioOutputUnitStart(unit);
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CHECK_AU_ERROR(status, "Error starting AudioUnit");
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}
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AudioInput* AudioUnitIO::GetInput(){
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return input;
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}
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AudioOutput* AudioUnitIO::GetOutput(){
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return output;
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}
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#if TARGET_OS_OSX
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OSStatus AudioUnitIO::DefaultDeviceChangedCallback(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *inClientData){
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AudioUnitIO* self=(AudioUnitIO*)inClientData;
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if(inAddresses[0].mSelector==kAudioHardwarePropertyDefaultOutputDevice){
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LOGV("System default output device changed");
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if(self->currentOutputDevice=="default"){
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self->SetCurrentDevice(false, self->currentOutputDevice);
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}
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}else if(inAddresses[0].mSelector==kAudioHardwarePropertyDefaultInputDevice){
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LOGV("System default input device changed");
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if(self->currentInputDevice=="default"){
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self->SetCurrentDevice(true, self->currentInputDevice);
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}
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}
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return noErr;
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}
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void AudioUnitIO::SetCurrentDevice(bool input, std::string deviceID){
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LOGV("Setting current %sput device: %s", input ? "in" : "out", deviceID.c_str());
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if(started){
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AudioOutputUnitStop(unit);
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AudioUnitUninitialize(unit);
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}
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UInt32 size=sizeof(AudioDeviceID);
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AudioDeviceID device=0;
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OSStatus status;
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if(deviceID=="default"){
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AudioObjectPropertyAddress propertyAddress;
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propertyAddress.mSelector = input ? kAudioHardwarePropertyDefaultInputDevice : kAudioHardwarePropertyDefaultOutputDevice;
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propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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propertyAddress.mElement = kAudioObjectPropertyElementMaster;
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UInt32 propsize = sizeof(AudioDeviceID);
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status = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propsize, &device);
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CHECK_AU_ERROR(status, "Error getting default device");
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}else{
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AudioObjectPropertyAddress propertyAddress = {
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kAudioHardwarePropertyDevices,
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kAudioObjectPropertyScopeGlobal,
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kAudioObjectPropertyElementMaster
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};
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UInt32 dataSize = 0;
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status = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &dataSize);
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CHECK_AU_ERROR(status, "Error getting devices size");
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UInt32 deviceCount = (UInt32)(dataSize / sizeof(AudioDeviceID));
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AudioDeviceID audioDevices[deviceCount];
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status = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &dataSize, audioDevices);
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CHECK_AU_ERROR(status, "Error getting device list");
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for(UInt32 i = 0; i < deviceCount; ++i) {
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// Query device UID
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CFStringRef deviceUID = NULL;
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dataSize = sizeof(deviceUID);
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propertyAddress.mSelector = kAudioDevicePropertyDeviceUID;
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status = AudioObjectGetPropertyData(audioDevices[i], &propertyAddress, 0, NULL, &dataSize, &deviceUID);
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CHECK_AU_ERROR(status, "Error getting device uid");
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char buf[1024];
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CFStringGetCString(deviceUID, buf, 1024, kCFStringEncodingUTF8);
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if(deviceID==buf){
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LOGV("Found device for id %s", buf);
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device=audioDevices[i];
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break;
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}
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}
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if(!device){
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LOGW("Requested device not found, using default");
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SetCurrentDevice(input, "default");
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return;
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}
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}
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status=AudioUnitSetProperty(unit,
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kAudioOutputUnitProperty_CurrentDevice,
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kAudioUnitScope_Global,
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input ? kInputBus : kOutputBus,
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&device,
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size);
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CHECK_AU_ERROR(status, "Error setting input device");
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if(input)
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currentInputDevice=deviceID;
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else
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currentOutputDevice=deviceID;
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/*AudioObjectPropertyAddress propertyAddress = {
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kAudioDevicePropertyBufferFrameSize,
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kAudioObjectPropertyScopeGlobal,
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kAudioObjectPropertyElementMaster
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};
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size=4;
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UInt32 bufferFrameSize;
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status=AudioObjectGetPropertyData(device, &propertyAddress, 0, NULL, &size, &bufferFrameSize);
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if(status==noErr){
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estimatedDelay=bufferFrameSize/48;
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LOGD("CoreAudio buffer size for device is %u frames (%u ms)", bufferFrameSize, estimatedDelay);
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}*/
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if(started){
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started=false;
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StartIfNeeded();
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}
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if(!input){
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currentOutputDeviceID=device;
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}
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LOGV("Set current %sput device done", input ? "in" : "out");
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}
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void AudioUnitIO::SetDuckingEnabled(bool enabled){
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duckingEnabled=enabled;
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if(outputEnabled && duckingEnabled!=actualDuckingEnabled){
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actualDuckingEnabled=enabled;
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AudioDeviceDuck(currentOutputDeviceID, enabled ? 0.177828f : 1.0f, NULL, 0.1f);
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}
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}
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#endif
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