godot/drivers/coreaudio/audio_driver_coreaudio.cpp
2021-06-16 11:56:25 +01:00

686 lines
22 KiB
C++

/*************************************************************************/
/* audio_driver_coreaudio.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef COREAUDIO_ENABLED
#include "audio_driver_coreaudio.h"
#include "core/os/os.h"
#include "core/project_settings.h"
#define kOutputBus 0
#define kInputBus 1
#ifdef OSX_ENABLED
OSStatus AudioDriverCoreAudio::input_device_address_cb(AudioObjectID inObjectID,
UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses,
void *inClientData) {
AudioDriverCoreAudio *driver = (AudioDriverCoreAudio *)inClientData;
// If our selected device is the Default call set_device to update the
// kAudioOutputUnitProperty_CurrentDevice property
if (driver->capture_device_name == "Default") {
driver->capture_set_device("Default");
}
return noErr;
}
OSStatus AudioDriverCoreAudio::output_device_address_cb(AudioObjectID inObjectID,
UInt32 inNumberAddresses, const AudioObjectPropertyAddress *inAddresses,
void *inClientData) {
AudioDriverCoreAudio *driver = (AudioDriverCoreAudio *)inClientData;
// If our selected device is the Default call set_device to update the
// kAudioOutputUnitProperty_CurrentDevice property
if (driver->device_name == "Default") {
driver->set_device("Default");
}
return noErr;
}
#endif
Error AudioDriverCoreAudio::init() {
AudioComponentDescription desc;
memset(&desc, 0, 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, &audio_unit);
ERR_FAIL_COND_V(result != noErr, FAILED);
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &prop, &output_device_address_cb, this);
ERR_FAIL_COND_V(result != noErr, FAILED);
#endif
AudioStreamBasicDescription strdesc;
memset(&strdesc, 0, sizeof(strdesc));
UInt32 size = sizeof(strdesc);
result = AudioUnitGetProperty(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, kOutputBus, &strdesc, &size);
ERR_FAIL_COND_V(result != noErr, FAILED);
switch (strdesc.mChannelsPerFrame) {
case 2: // Stereo
case 4: // Surround 3.1
case 6: // Surround 5.1
case 8: // Surround 7.1
channels = strdesc.mChannelsPerFrame;
break;
default:
// Unknown number of channels, default to stereo
channels = 2;
break;
}
mix_rate = GLOBAL_GET("audio/mix_rate");
memset(&strdesc, 0, sizeof(strdesc));
strdesc.mFormatID = kAudioFormatLinearPCM;
strdesc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
strdesc.mChannelsPerFrame = 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(audio_unit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, kOutputBus, &strdesc, sizeof(strdesc));
ERR_FAIL_COND_V(result != noErr, FAILED);
int latency = GLOBAL_GET("audio/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);
#ifdef OSX_ENABLED
result = AudioUnitSetProperty(audio_unit, kAudioDevicePropertyBufferFrameSize, kAudioUnitScope_Global, kOutputBus, &buffer_frames, sizeof(UInt32));
ERR_FAIL_COND_V(result != noErr, FAILED);
#endif
unsigned int buffer_size = buffer_frames * channels;
samples_in.resize(buffer_size);
input_buf.resize(buffer_size);
print_verbose("CoreAudio: detected " + itos(channels) + " channels");
print_verbose("CoreAudio: audio buffer frames: " + itos(buffer_frames) + " calculated latency: " + itos(buffer_frames * 1000 / mix_rate) + "ms");
AURenderCallbackStruct callback;
memset(&callback, 0, sizeof(AURenderCallbackStruct));
callback.inputProc = &AudioDriverCoreAudio::output_callback;
callback.inputProcRefCon = this;
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
ERR_FAIL_COND_V(result != noErr, FAILED);
result = AudioUnitInitialize(audio_unit);
ERR_FAIL_COND_V(result != noErr, FAILED);
if (GLOBAL_GET("audio/enable_audio_input")) {
return capture_init();
}
return OK;
}
OSStatus AudioDriverCoreAudio::output_callback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList *ioData) {
AudioDriverCoreAudio *ad = (AudioDriverCoreAudio *)inRefCon;
if (!ad->active || !ad->try_lock()) {
for (unsigned int i = 0; i < ioData->mNumberBuffers; i++) {
AudioBuffer *abuf = &ioData->mBuffers[i];
memset(abuf->mData, 0, abuf->mDataByteSize);
};
return 0;
};
ad->start_counting_ticks();
for (unsigned int i = 0; i < ioData->mNumberBuffers; i++) {
AudioBuffer *abuf = &ioData->mBuffers[i];
unsigned int frames_left = inNumberFrames;
int16_t *out = (int16_t *)abuf->mData;
while (frames_left) {
unsigned int frames = MIN(frames_left, ad->buffer_frames);
ad->audio_server_process(frames, ad->samples_in.ptrw());
for (unsigned int j = 0; j < frames * ad->channels; j++) {
out[j] = ad->samples_in[j] >> 16;
}
frames_left -= frames;
out += frames * ad->channels;
};
};
ad->stop_counting_ticks();
ad->unlock();
return 0;
};
OSStatus AudioDriverCoreAudio::input_callback(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber, UInt32 inNumberFrames,
AudioBufferList *ioData) {
AudioDriverCoreAudio *ad = (AudioDriverCoreAudio *)inRefCon;
if (!ad->active) {
return 0;
}
ad->lock();
AudioBufferList bufferList;
bufferList.mNumberBuffers = 1;
bufferList.mBuffers[0].mData = ad->input_buf.ptrw();
bufferList.mBuffers[0].mNumberChannels = ad->capture_channels;
bufferList.mBuffers[0].mDataByteSize = ad->input_buf.size() * sizeof(int16_t);
OSStatus result = AudioUnitRender(ad->input_unit, ioActionFlags, inTimeStamp, inBusNumber, inNumberFrames, &bufferList);
if (result == noErr) {
for (unsigned int i = 0; i < inNumberFrames * ad->capture_channels; i++) {
int32_t sample = ad->input_buf[i] << 16;
ad->input_buffer_write(sample);
if (ad->capture_channels == 1) {
// In case input device is single channel convert it to Stereo
ad->input_buffer_write(sample);
}
}
} else {
ERR_PRINT("AudioUnitRender failed, code: " + itos(result));
}
ad->unlock();
return result;
}
void AudioDriverCoreAudio::start() {
if (!active) {
OSStatus result = AudioOutputUnitStart(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStart failed, code: " + itos(result));
} else {
active = true;
}
}
};
void AudioDriverCoreAudio::stop() {
if (active) {
OSStatus result = AudioOutputUnitStop(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStop failed, code: " + itos(result));
} else {
active = false;
}
}
}
int AudioDriverCoreAudio::get_mix_rate() const {
return mix_rate;
};
AudioDriver::SpeakerMode AudioDriverCoreAudio::get_speaker_mode() const {
return get_speaker_mode_by_total_channels(channels);
};
void AudioDriverCoreAudio::lock() {
mutex.lock();
};
void AudioDriverCoreAudio::unlock() {
mutex.unlock();
};
bool AudioDriverCoreAudio::try_lock() {
return mutex.try_lock() == OK;
}
void AudioDriverCoreAudio::finish() {
capture_finish();
if (audio_unit) {
OSStatus result;
lock();
AURenderCallbackStruct callback;
memset(&callback, 0, sizeof(AURenderCallbackStruct));
result = AudioUnitSetProperty(audio_unit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, kOutputBus, &callback, sizeof(callback));
if (result != noErr) {
ERR_PRINT("AudioUnitSetProperty failed");
}
if (active) {
result = AudioOutputUnitStop(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStop failed");
}
active = false;
}
result = AudioUnitUninitialize(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioUnitUninitialize failed");
}
#ifdef OSX_ENABLED
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
result = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &prop, &output_device_address_cb, this);
if (result != noErr) {
ERR_PRINT("AudioObjectRemovePropertyListener failed");
}
#endif
result = AudioComponentInstanceDispose(audio_unit);
if (result != noErr) {
ERR_PRINT("AudioComponentInstanceDispose failed");
}
audio_unit = NULL;
unlock();
}
}
Error AudioDriverCoreAudio::capture_init() {
AudioComponentDescription desc;
memset(&desc, 0, 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;
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;
memset(&strdesc, 0, 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_GET("audio/mix_rate");
memset(&strdesc, 0, 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;
memset(&callback, 0, 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;
memset(&callback, 0, 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() {
input_buffer_init(buffer_frames);
OSStatus result = AudioOutputUnitStart(input_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStart failed, code: " + itos(result));
}
return OK;
}
Error AudioDriverCoreAudio::capture_stop() {
if (input_unit) {
OSStatus result = AudioOutputUnitStop(input_unit);
if (result != noErr) {
ERR_PRINT("AudioOutputUnitStop failed, code: " + itos(result));
}
}
return OK;
}
#ifdef OSX_ENABLED
Array AudioDriverCoreAudio::_get_device_list(bool capture) {
Array list;
list.push_back("Default");
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDevices;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
UInt32 size = 0;
AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &prop, 0, NULL, &size);
AudioDeviceID *audioDevices = (AudioDeviceID *)memalloc(size);
ERR_FAIL_NULL_V_MSG(audioDevices, list, "Out of memory.");
AudioObjectGetPropertyData(kAudioObjectSystemObject, &prop, 0, NULL, &size, audioDevices);
UInt32 deviceCount = size / sizeof(AudioDeviceID);
for (UInt32 i = 0; i < deviceCount; i++) {
prop.mScope = capture ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput;
prop.mSelector = kAudioDevicePropertyStreamConfiguration;
AudioObjectGetPropertyDataSize(audioDevices[i], &prop, 0, NULL, &size);
AudioBufferList *bufferList = (AudioBufferList *)memalloc(size);
ERR_FAIL_NULL_V_MSG(bufferList, list, "Out of memory.");
AudioObjectGetPropertyData(audioDevices[i], &prop, 0, NULL, &size, bufferList);
UInt32 channelCount = 0;
for (UInt32 j = 0; j < bufferList->mNumberBuffers; j++)
channelCount += bufferList->mBuffers[j].mNumberChannels;
memfree(bufferList);
if (channelCount >= 1) {
CFStringRef cfname;
size = sizeof(CFStringRef);
prop.mSelector = kAudioObjectPropertyName;
AudioObjectGetPropertyData(audioDevices[i], &prop, 0, NULL, &size, &cfname);
CFIndex length = CFStringGetLength(cfname);
CFIndex maxSize = CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8) + 1;
char *buffer = (char *)memalloc(maxSize);
ERR_FAIL_NULL_V_MSG(buffer, list, "Out of memory.");
if (CFStringGetCString(cfname, buffer, maxSize, kCFStringEncodingUTF8)) {
// Append the ID to the name in case we have devices with duplicate name
list.push_back(String(buffer) + " (" + itos(audioDevices[i]) + ")");
}
memfree(buffer);
}
}
memfree(audioDevices);
return list;
}
void AudioDriverCoreAudio::_set_device(const String &device, bool capture) {
AudioDeviceID deviceId;
bool found = false;
if (device != "Default") {
AudioObjectPropertyAddress prop;
prop.mSelector = kAudioHardwarePropertyDevices;
prop.mScope = kAudioObjectPropertyScopeGlobal;
prop.mElement = kAudioObjectPropertyElementMaster;
UInt32 size = 0;
AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &prop, 0, NULL, &size);
AudioDeviceID *audioDevices = (AudioDeviceID *)memalloc(size);
ERR_FAIL_NULL_MSG(audioDevices, "Out of memory.");
AudioObjectGetPropertyData(kAudioObjectSystemObject, &prop, 0, NULL, &size, audioDevices);
UInt32 deviceCount = size / sizeof(AudioDeviceID);
for (UInt32 i = 0; i < deviceCount && !found; i++) {
prop.mScope = capture ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput;
prop.mSelector = kAudioDevicePropertyStreamConfiguration;
AudioObjectGetPropertyDataSize(audioDevices[i], &prop, 0, NULL, &size);
AudioBufferList *bufferList = (AudioBufferList *)memalloc(size);
ERR_FAIL_NULL_MSG(bufferList, "Out of memory.");
AudioObjectGetPropertyData(audioDevices[i], &prop, 0, NULL, &size, bufferList);
UInt32 channelCount = 0;
for (UInt32 j = 0; j < bufferList->mNumberBuffers; j++)
channelCount += bufferList->mBuffers[j].mNumberChannels;
memfree(bufferList);
if (channelCount >= 1) {
CFStringRef cfname;
size = sizeof(CFStringRef);
prop.mSelector = kAudioObjectPropertyName;
AudioObjectGetPropertyData(audioDevices[i], &prop, 0, NULL, &size, &cfname);
CFIndex length = CFStringGetLength(cfname);
CFIndex maxSize = CFStringGetMaximumSizeForEncoding(length, kCFStringEncodingUTF8) + 1;
char *buffer = (char *)memalloc(maxSize);
ERR_FAIL_NULL_MSG(buffer, "Out of memory.");
if (CFStringGetCString(cfname, buffer, maxSize, kCFStringEncodingUTF8)) {
String name = String(buffer) + " (" + itos(audioDevices[i]) + ")";
if (name == device) {
deviceId = audioDevices[i];
found = true;
}
}
memfree(buffer);
}
}
memfree(audioDevices);
}
if (!found) {
// If we haven't found the desired device get the system default one
UInt32 size = sizeof(AudioDeviceID);
UInt32 elem = capture ? kAudioHardwarePropertyDefaultInputDevice : kAudioHardwarePropertyDefaultOutputDevice;
AudioObjectPropertyAddress property = { elem, kAudioObjectPropertyScopeGlobal, kAudioObjectPropertyElementMaster };
OSStatus result = AudioObjectGetPropertyData(kAudioObjectSystemObject, &property, 0, NULL, &size, &deviceId);
ERR_FAIL_COND(result != noErr);
found = true;
}
if (found) {
OSStatus result = AudioUnitSetProperty(capture ? input_unit : audio_unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &deviceId, sizeof(AudioDeviceID));
ERR_FAIL_COND(result != noErr);
if (capture) {
// Reset audio input to keep synchronisation.
input_position = 0;
input_size = 0;
}
}
}
Array AudioDriverCoreAudio::get_device_list() {
return _get_device_list();
}
String AudioDriverCoreAudio::get_device() {
return device_name;
}
void AudioDriverCoreAudio::set_device(String device) {
device_name = device;
if (active) {
_set_device(device_name);
}
}
void AudioDriverCoreAudio::capture_set_device(const String &p_name) {
capture_device_name = p_name;
if (active) {
_set_device(capture_device_name, true);
}
}
Array AudioDriverCoreAudio::capture_get_device_list() {
return _get_device_list(true);
}
String AudioDriverCoreAudio::capture_get_device() {
return capture_device_name;
}
#endif
AudioDriverCoreAudio::AudioDriverCoreAudio() :
audio_unit(NULL),
input_unit(NULL),
active(false),
device_name("Default"),
capture_device_name("Default"),
mix_rate(0),
channels(2),
capture_channels(2),
buffer_frames(0) {
samples_in.clear();
}
AudioDriverCoreAudio::~AudioDriverCoreAudio(){};
#endif