307 lines
12 KiB
C++
307 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 <stdlib.h>
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#include <stdio.h>
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#include "AudioInputAudioUnitOSX.h"
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#include "../../logging.h"
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#include "../../audio/Resampler.h"
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#include "../../VoIPController.h"
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#define BUFFER_SIZE 960
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#define CHECK_AU_ERROR(res, msg) if(res!=noErr){ LOGE("input: " msg": OSStatus=%d", (int)res); failed=true; return; }
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#define kOutputBus 0
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#define kInputBus 1
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using namespace tgvoip;
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using namespace tgvoip::audio;
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AudioInputAudioUnitLegacy::AudioInputAudioUnitLegacy(std::string deviceID) : AudioInput(deviceID){
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remainingDataSize=0;
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isRecording=false;
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inBufferList.mBuffers[0].mData=malloc(10240);
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inBufferList.mBuffers[0].mDataByteSize=10240;
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inBufferList.mNumberBuffers=1;
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OSStatus status;
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AudioComponentDescription inputDesc={
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.componentType = kAudioUnitType_Output, .componentSubType = kAudioUnitSubType_HALOutput, .componentFlags = 0, .componentFlagsMask = 0,
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.componentManufacturer = kAudioUnitManufacturer_Apple
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};
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AudioComponent component=AudioComponentFindNext(NULL, &inputDesc);
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status=AudioComponentInstanceNew(component, &unit);
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CHECK_AU_ERROR(status, "Error creating AudioUnit");
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UInt32 flag=0;
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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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flag=1;
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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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SetCurrentDevice(deviceID);
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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 = kAudioHardwarePropertyDefaultInputDevice;
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propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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propertyAddress.mElement = kAudioObjectPropertyElementMaster;
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AudioObjectAddPropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioInputAudioUnitLegacy::DefaultDeviceChangedCallback, this);
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AURenderCallbackStruct callbackStruct;
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callbackStruct.inputProc = AudioInputAudioUnitLegacy::BufferCallback;
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callbackStruct.inputProcRefCon=this;
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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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status=AudioUnitInitialize(unit);
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CHECK_AU_ERROR(status, "Error initializing unit");
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}
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AudioInputAudioUnitLegacy::~AudioInputAudioUnitLegacy(){
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AudioObjectPropertyAddress propertyAddress;
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propertyAddress.mSelector = kAudioHardwarePropertyDefaultInputDevice;
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propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
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propertyAddress.mElement = kAudioObjectPropertyElementMaster;
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AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &propertyAddress, AudioInputAudioUnitLegacy::DefaultDeviceChangedCallback, this);
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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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}
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void AudioInputAudioUnitLegacy::Start(){
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isRecording=true;
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OSStatus status=AudioOutputUnitStart(unit);
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CHECK_AU_ERROR(status, "Error starting AudioUnit");
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}
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void AudioInputAudioUnitLegacy::Stop(){
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isRecording=false;
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OSStatus status=AudioOutputUnitStart(unit);
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CHECK_AU_ERROR(status, "Error stopping AudioUnit");
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}
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OSStatus AudioInputAudioUnitLegacy::BufferCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData){
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AudioInputAudioUnitLegacy* input=(AudioInputAudioUnitLegacy*) inRefCon;
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input->inBufferList.mBuffers[0].mDataByteSize=10240;
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AudioUnitRender(input->unit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &input->inBufferList);
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input->HandleBufferCallback(&input->inBufferList);
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return noErr;
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}
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void AudioInputAudioUnitLegacy::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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size_t len=buf.mDataByteSize;
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if(hardwareSampleRate!=48000){
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len=tgvoip::audio::Resampler::Convert((int16_t*)buf.mData, (int16_t*)(remainingData+remainingDataSize), buf.mDataByteSize/2, (10240-(buf.mDataByteSize+remainingDataSize))/2, 48000, hardwareSampleRate)*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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}
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remainingDataSize+=len;
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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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void AudioInputAudioUnitLegacy::EnumerateDevices(std::vector<AudioInputDevice>& devs){
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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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OSStatus status = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &dataSize);
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if(kAudioHardwareNoError != status) {
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LOGE("AudioObjectGetPropertyDataSize (kAudioHardwarePropertyDevices) failed: %i", status);
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return;
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}
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UInt32 deviceCount = (UInt32)(dataSize / sizeof(AudioDeviceID));
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AudioDeviceID *audioDevices = (AudioDeviceID*)(malloc(dataSize));
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status = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &dataSize, audioDevices);
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if(kAudioHardwareNoError != status) {
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LOGE("AudioObjectGetPropertyData (kAudioHardwarePropertyDevices) failed: %i", status);
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free(audioDevices);
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audioDevices = NULL;
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return;
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}
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// Iterate through all the devices and determine which are input-capable
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propertyAddress.mScope = kAudioDevicePropertyScopeInput;
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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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if(kAudioHardwareNoError != status) {
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LOGE("AudioObjectGetPropertyData (kAudioDevicePropertyDeviceUID) failed: %i", status);
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continue;
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}
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// Query device name
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CFStringRef deviceName = NULL;
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dataSize = sizeof(deviceName);
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propertyAddress.mSelector = kAudioDevicePropertyDeviceNameCFString;
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status = AudioObjectGetPropertyData(audioDevices[i], &propertyAddress, 0, NULL, &dataSize, &deviceName);
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if(kAudioHardwareNoError != status) {
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LOGE("AudioObjectGetPropertyData (kAudioDevicePropertyDeviceNameCFString) failed: %i", status);
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continue;
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}
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// Determine if the device is an input device (it is an input device if it has input channels)
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dataSize = 0;
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propertyAddress.mSelector = kAudioDevicePropertyStreamConfiguration;
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status = AudioObjectGetPropertyDataSize(audioDevices[i], &propertyAddress, 0, NULL, &dataSize);
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if(kAudioHardwareNoError != status) {
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LOGE("AudioObjectGetPropertyDataSize (kAudioDevicePropertyStreamConfiguration) failed: %i", status);
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continue;
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}
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AudioBufferList *bufferList = (AudioBufferList*)(malloc(dataSize));
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status = AudioObjectGetPropertyData(audioDevices[i], &propertyAddress, 0, NULL, &dataSize, bufferList);
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if(kAudioHardwareNoError != status || 0 == bufferList->mNumberBuffers) {
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if(kAudioHardwareNoError != status)
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LOGE("AudioObjectGetPropertyData (kAudioDevicePropertyStreamConfiguration) failed: %i", status);
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free(bufferList);
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bufferList = NULL;
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continue;
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}
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free(bufferList);
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bufferList = NULL;
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AudioInputDevice dev;
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char buf[1024];
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CFStringGetCString(deviceName, buf, 1024, kCFStringEncodingUTF8);
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dev.displayName=std::string(buf);
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CFStringGetCString(deviceUID, buf, 1024, kCFStringEncodingUTF8);
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dev.id=std::string(buf);
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devs.push_back(dev);
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}
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free(audioDevices);
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audioDevices = NULL;
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}
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void AudioInputAudioUnitLegacy::SetCurrentDevice(std::string deviceID){
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UInt32 size=sizeof(AudioDeviceID);
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AudioDeviceID inputDevice=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 = kAudioHardwarePropertyDefaultInputDevice;
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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, &inputDevice);
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CHECK_AU_ERROR(status, "Error getting default input 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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inputDevice=audioDevices[i];
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break;
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}
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}
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if(!inputDevice){
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LOGW("Requested device not found, using default");
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SetCurrentDevice("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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kInputBus,
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&inputDevice,
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size);
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CHECK_AU_ERROR(status, "Error setting input device");
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AudioStreamBasicDescription hardwareFormat;
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size=sizeof(hardwareFormat);
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status=AudioUnitGetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kInputBus, &hardwareFormat, &size);
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CHECK_AU_ERROR(status, "Error getting hardware format");
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hardwareSampleRate=hardwareFormat.mSampleRate;
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AudioStreamBasicDescription desiredFormat={
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.mSampleRate=hardwareFormat.mSampleRate, .mFormatID=kAudioFormatLinearPCM, .mFormatFlags=kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked | kAudioFormatFlagsNativeEndian,
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.mFramesPerPacket=1, .mChannelsPerFrame=1, .mBitsPerChannel=16, .mBytesPerPacket=2, .mBytesPerFrame=2
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};
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status=AudioUnitSetProperty(unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &desiredFormat, sizeof(desiredFormat));
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CHECK_AU_ERROR(status, "Error setting format");
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LOGD("Switched capture device, new sample rate %d", hardwareSampleRate);
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this->currentDevice=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(inputDevice, &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 output device is %u frames (%u ms)", bufferFrameSize, estimatedDelay);
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}
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}
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OSStatus AudioInputAudioUnitLegacy::DefaultDeviceChangedCallback(AudioObjectID inObjectID, UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses, void *inClientData){
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LOGV("System default input device changed");
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AudioInputAudioUnitLegacy* self=(AudioInputAudioUnitLegacy*)inClientData;
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if(self->currentDevice=="default"){
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self->SetCurrentDevice(self->currentDevice);
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}
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return noErr;
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}
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