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Fixed issues with audio input on some Macs

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This commit is contained in:
Marcelo Fernandez 2018-10-11 13:22:30 -03:00
parent 451e5fd051
commit 5e26829118
2 changed files with 159 additions and 47 deletions
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202
drivers/coreaudio/audio_driver_coreaudio.cpp
View file

@ -95,11 +95,6 @@ Error AudioDriverCoreAudio::init() {
result = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop, &output_device_address_cb, this);
ERR_FAIL_COND_V(result != noErr, FAILED);
prop.mSelector = kAudioHardwarePropertyDefaultInputDevice;
result = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop, &input_device_address_cb, this);
ERR_FAIL_COND_V(result != noErr, FAILED);
#endif
AudioStreamBasicDescription strdesc;
@ -123,26 +118,6 @@ Error AudioDriverCoreAudio::init() {
break;
}
zeromem(&strdesc, sizeof(strdesc));
size = sizeof(strdesc);
result = AudioUnitGetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &strdesc, &size);
ERR_FAIL_COND_V(result != noErr, FAILED);
switch (strdesc.mChannelsPerFrame) {
case 1: // Mono
capture_channels = 1;
break;
case 2: // Stereo
capture_channels = 2;
break;
default:
// Unknown number of channels, default to stereo
capture_channels = 2;
break;
}
mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
zeromem(&strdesc, sizeof(strdesc));
@ -158,11 +133,6 @@ Error AudioDriverCoreAudio::init() {
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kOutputBus, &strdesc, sizeof(strdesc));
ERR_FAIL_COND_V(result != noErr, FAILED);
strdesc.mChannelsPerFrame = capture_channels;
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &strdesc, sizeof(strdesc));
ERR_FAIL_COND_V(result != noErr, FAILED);
int latency = GLOBAL_DEF_RST("audio/output_latency", DEFAULT_OUTPUT_LATENCY);
// Sample rate is independent of channels (ref: https://stackoverflow.com/questions/11048825/audio-sample-frequency-rely-on-channels)
buffer_frames = closest_power_of_2(latency * mix_rate / 1000);
@ -189,16 +159,10 @@ Error AudioDriverCoreAudio::init() {
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
ERR_FAIL_COND_V(result != noErr, FAILED);
zeromem(&callback, sizeof(AURenderCallbackStruct));
callback.inputProc = &AudioDriverCoreAudio::input_callback;
callback.inputProcRefCon = this;
result = AudioUnitSetProperty(audio_unit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &callback, sizeof(callback));
ERR_FAIL_COND_V(result != noErr, FAILED);
result = AudioUnitInitialize(audio_unit);
ERR_FAIL_COND_V(result != noErr, FAILED);
return OK;
return capture_init();
}
OSStatus AudioDriverCoreAudio::output_callback(void *inRefCon,
@ -265,7 +229,7 @@ OSStatus AudioDriverCoreAudio::input_callback(void *inRefCon,
bufferList.mBuffers[0].mNumberChannels = ad->capture_channels;
bufferList.mBuffers[0].mDataByteSize = ad->input_buf.size() * sizeof(int16_t);
OSStatus result = AudioUnitRender(ad->audio_unit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList);
OSStatus result = AudioUnitRender(ad->input_unit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList);
if (result == noErr) {
for (int i = 0; i < inNumberFrames * ad->capture_channels; i++) {
int32_t sample = ad->input_buf[i] << 16;
@ -332,6 +296,8 @@ bool AudioDriverCoreAudio::try_lock() {
}
void AudioDriverCoreAudio::finish() {
capture_finish();
if (audio_unit) {
OSStatus result;
@ -375,6 +341,7 @@ void AudioDriverCoreAudio::finish() {
ERR_PRINT("AudioComponentInstanceDispose failed");
}
audio_unit = NULL;
unlock();
}
@ -384,20 +351,158 @@ void AudioDriverCoreAudio::finish() {
}
}
Error AudioDriverCoreAudio::capture_start() {
Error AudioDriverCoreAudio::capture_init() {
AudioComponentDescription desc;
zeromem(&desc, sizeof(desc));
desc.componentType = kAudioUnitType_Output;
#ifdef OSX_ENABLED
desc.componentSubType = kAudioUnitSubType_HALOutput;
#else
desc.componentSubType = kAudioUnitSubType_RemoteIO;
#endif
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
AudioComponent comp = AudioComponentFindNext(NULL, &desc);
ERR_FAIL_COND_V(comp == NULL, FAILED);
OSStatus result = AudioComponentInstanceNew(comp, &input_unit);
ERR_FAIL_COND_V(result != noErr, FAILED);
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultInputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop, &input_device_address_cb, this);
ERR_FAIL_COND_V(result != noErr, FAILED);
#endif
UInt32 flag = 1;
OSStatus result = AudioUnitSetProperty(audio_unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, kInputBus, &flag, sizeof(flag));
result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, kInputBus, &flag, sizeof(flag));
ERR_FAIL_COND_V(result != noErr, FAILED);
flag = 0;
result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, kOutputBus, &flag, sizeof(flag));
ERR_FAIL_COND_V(result != noErr, FAILED);
UInt32 size;
#ifdef OSX_ENABLED
AudioDeviceID deviceId;
size = sizeof(AudioDeviceID);
AudioObjectPropertyAddress property = { kAudioHardwarePropertyDefaultInputDevice, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
result = AudioObjectGetPropertyData(kAudioObjectSystemObject, &property, 0, NULL, &size, &deviceId);
ERR_FAIL_COND_V(result != noErr, FAILED);
result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &deviceId, sizeof(AudioDeviceID));
ERR_FAIL_COND_V(result != noErr, FAILED);
#endif
AudioStreamBasicDescription strdesc;
zeromem(&strdesc, sizeof(strdesc));
size = sizeof(strdesc);
result = AudioUnitGetProperty(input_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &strdesc, &size);
ERR_FAIL_COND_V(result != noErr, FAILED);
switch (strdesc.mChannelsPerFrame) {
case 1: // Mono
capture_channels = 1;
break;
case 2: // Stereo
capture_channels = 2;
break;
default:
// Unknown number of channels, default to stereo
capture_channels = 2;
break;
}
mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
zeromem(&strdesc, sizeof(strdesc));
strdesc.mFormatID = kAudioFormatLinearPCM;
strdesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
strdesc.mChannelsPerFrame = capture_channels;
strdesc.mSampleRate = mix_rate;
strdesc.mFramesPerPacket = 1;
strdesc.mBitsPerChannel = 16;
strdesc.mBytesPerFrame = strdesc.mBitsPerChannel * strdesc.mChannelsPerFrame / 8;
strdesc.mBytesPerPacket = strdesc.mBytesPerFrame * strdesc.mFramesPerPacket;
result = AudioUnitSetProperty(input_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kInputBus, &strdesc, sizeof(strdesc));
ERR_FAIL_COND_V(result != noErr, FAILED);
AURenderCallbackStruct callback;
zeromem(&callback, sizeof(AURenderCallbackStruct));
callback.inputProc = &AudioDriverCoreAudio::input_callback;
callback.inputProcRefCon = this;
result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, kInputBus, &callback, sizeof(callback));
ERR_FAIL_COND_V(result != noErr, FAILED);
result = AudioUnitInitialize(input_unit);
ERR_FAIL_COND_V(result != noErr, FAILED);
return OK;
}
void AudioDriverCoreAudio::capture_finish() {
if (input_unit) {
lock();
AURenderCallbackStruct callback;
zeromem(&callback, sizeof(AURenderCallbackStruct));
OSStatus result = AudioUnitSetProperty(input_unit, kAudioOutputUnitProperty_SetInputCallback, kAudioUnitScope_Global, 0, &callback, sizeof(callback));
if (result != noErr) {
ERR_PRINT("AudioUnitSetProperty failed");
}
result = AudioUnitUninitialize(input_unit);
if (result != noErr) {
ERR_PRINT("AudioUnitUninitialize failed");
}
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultInputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop, &input_device_address_cb, this);
if (result != noErr) {
ERR_PRINT("AudioObjectRemovePropertyListener failed");
}
#endif
result = AudioComponentInstanceDispose(input_unit);
if (result != noErr) {
ERR_PRINT("AudioComponentInstanceDispose failed");
}
input_unit = NULL;
unlock();
}
}
Error AudioDriverCoreAudio::capture_start() {
OSStatus result = AudioOutputUnitStart(input_unit);
if (result != noErr) {
ERR_PRINTS("AudioOutputUnitStart failed, code: " + itos(result));
}
return OK;
}
Error AudioDriverCoreAudio::capture_stop() {
UInt32 flag = 0;
OSStatus result = AudioUnitSetProperty(audio_unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, kInputBus, &flag, sizeof(flag));
ERR_FAIL_COND_V(result != noErr, FAILED);
if (input_unit) {
OSStatus result = AudioOutputUnitStop(input_unit);
if (result != noErr) {
ERR_PRINTS("AudioOutputUnitStop failed, code: " + itos(result));
}
}
return OK;
}
@ -531,12 +636,14 @@ void AudioDriverCoreAudio::_set_device(const String &device, bool capture) {
}
if (found) {
OSStatus result = AudioUnitSetProperty(audio_unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, capture ? kInputBus : kOutputBus, &deviceId, sizeof(AudioDeviceID));
OSStatus result = AudioUnitSetProperty(capture ? input_unit : audio_unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &deviceId, sizeof(AudioDeviceID));
ERR_FAIL_COND(result != noErr);
// Reset audio input to keep synchronisation.
input_position = 0;
input_size = 0;
if (capture) {
// Reset audio input to keep synchronisation.
input_position = 0;
input_size = 0;
}
}
}
@ -580,6 +687,7 @@ String AudioDriverCoreAudio::capture_get_device() {
AudioDriverCoreAudio::AudioDriverCoreAudio() {
audio_unit = NULL;
input_unit = NULL;
active = false;
mutex = NULL;

4
drivers/coreaudio/audio_driver_coreaudio.h
View file

@ -43,6 +43,7 @@
class AudioDriverCoreAudio : public AudioDriver {
AudioComponentInstance audio_unit;
AudioComponentInstance input_unit;
bool active;
Mutex *mutex;
@ -83,6 +84,9 @@ class AudioDriverCoreAudio : public AudioDriver {
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList *ioData);
Error capture_init();
void capture_finish();
public:
const char *get_name() const {
return "CoreAudio";