boo/lib/audiodev/AQS.cpp

875 lines
32 KiB
C++

#include "AudioVoiceEngine.hpp"
#include "logvisor/logvisor.hpp"
#include "boo/IApplication.hpp"
#include "../CFPointer.hpp"
#include <AudioToolbox/AudioToolbox.h>
#include <CoreMIDI/CoreMIDI.h>
#include <CoreAudio/HostTime.h>
#include <mutex>
#include <condition_variable>
namespace boo {
static logvisor::Module Log("boo::AQS");
#define AQS_NUM_BUFFERS 24
static AudioChannel AQSChannelToBooChannel(AudioChannelLabel ch) {
switch (ch) {
case kAudioChannelLabel_Left:
return AudioChannel::FrontLeft;
case kAudioChannelLabel_Right:
return AudioChannel::FrontRight;
case kAudioChannelLabel_LeftSurround:
return AudioChannel::RearLeft;
case kAudioChannelLabel_RightSurround:
return AudioChannel::RearRight;
case kAudioChannelLabel_Center:
return AudioChannel::FrontCenter;
case kAudioChannelLabel_LFEScreen:
return AudioChannel::LFE;
case kAudioChannelLabel_LeftSurroundDirect:
return AudioChannel::RearLeft;
case kAudioChannelLabel_RightSurroundDirect:
return AudioChannel::SideRight;
}
return AudioChannel::Unknown;
}
struct AQSAudioVoiceEngine : BaseAudioVoiceEngine {
CFPointer<CFStringRef> m_runLoopMode;
CFPointer<CFStringRef> m_devName;
AudioQueueRef m_queue = nullptr;
AudioQueueBufferRef m_buffers[AQS_NUM_BUFFERS];
size_t m_frameBytes;
MIDIClientRef m_midiClient = 0;
bool m_cbRunning = true;
bool m_needsRebuild = false;
static void Callback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {
if (!engine->m_cbRunning)
return;
engine->_pumpAndMixVoices(engine->m_mixInfo.m_periodFrames, reinterpret_cast<float*>(inBuffer->mAudioData));
inBuffer->mAudioDataByteSize = engine->m_frameBytes;
AudioQueueEnqueueBuffer(inAQ, inBuffer, 0, nullptr);
}
static void DummyCallback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {}
std::pair<AudioChannelSet, Float64> _getAvailableSetAndRate() {
AudioObjectPropertyAddress propertyAddress;
UInt32 argSize;
int numStreams;
std::vector<AudioStreamID> streamIDs;
CFStringRef devName = m_devName.get();
AudioObjectID devId;
propertyAddress.mSelector = kAudioHardwarePropertyTranslateUIDToDevice;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
argSize = sizeof(devId);
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, sizeof(devName), &devName, &argSize,
&devId) != noErr) {
Log.report(logvisor::Error, "unable to resolve audio device UID %s, using default",
CFStringGetCStringPtr(devName, kCFStringEncodingUTF8));
argSize = sizeof(devId);
propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &argSize, &devId) == noErr) {
argSize = sizeof(CFStringRef);
AudioObjectPropertyAddress deviceAddress;
deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
AudioObjectGetPropertyData(devId, &deviceAddress, 0, NULL, &argSize, &m_devName);
} else {
Log.report(logvisor::Fatal, "unable determine default audio device");
return {AudioChannelSet::Unknown, 48000.0};
}
}
propertyAddress.mSelector = kAudioDevicePropertyStreams;
if (AudioObjectGetPropertyDataSize(devId, &propertyAddress, 0, NULL, &argSize) == noErr) {
numStreams = argSize / sizeof(AudioStreamID);
streamIDs.resize(numStreams);
if (AudioObjectGetPropertyData(devId, &propertyAddress, 0, NULL, &argSize, &streamIDs[0]) == noErr) {
propertyAddress.mSelector = kAudioStreamPropertyDirection;
for (int stm = 0; stm < numStreams; stm++) {
UInt32 streamDir;
argSize = sizeof(streamDir);
if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &argSize, &streamDir) == noErr) {
if (streamDir == 0) {
propertyAddress.mSelector = kAudioStreamPropertyPhysicalFormat;
AudioStreamBasicDescription asbd;
argSize = sizeof(asbd);
if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &argSize, &asbd) == noErr) {
switch (asbd.mChannelsPerFrame) {
case 2:
return {AudioChannelSet::Stereo, asbd.mSampleRate};
case 4:
return {AudioChannelSet::Quad, asbd.mSampleRate};
case 6:
return {AudioChannelSet::Surround51, asbd.mSampleRate};
case 8:
return {AudioChannelSet::Surround71, asbd.mSampleRate};
default:
break;
}
if (asbd.mChannelsPerFrame > 8)
return {AudioChannelSet::Surround71, asbd.mSampleRate};
}
break;
}
}
}
}
}
return {AudioChannelSet::Unknown, 48000.0};
}
std::string getCurrentAudioOutput() const { return CFStringGetCStringPtr(m_devName.get(), kCFStringEncodingUTF8); }
bool setCurrentAudioOutput(const char* name) {
m_devName = CFPointer<CFStringRef>::adopt(CFStringCreateWithCString(nullptr, name, kCFStringEncodingUTF8));
_rebuildAudioQueue();
return true;
}
/*
* https://stackoverflow.com/questions/1983984/how-to-get-audio-device-uid-to-pass-into-nssounds-setplaybackdeviceidentifier
*/
std::vector<std::pair<std::string, std::string>> enumerateAudioOutputs() const {
std::vector<std::pair<std::string, std::string>> ret;
AudioObjectPropertyAddress propertyAddress;
std::vector<AudioObjectID> deviceIDs;
UInt32 propertySize;
int numDevices;
std::vector<AudioStreamID> streamIDs;
int numStreams;
propertyAddress.mSelector = kAudioHardwarePropertyDevices;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
if (AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propertySize) == noErr) {
numDevices = propertySize / sizeof(AudioDeviceID);
ret.reserve(numDevices);
deviceIDs.resize(numDevices);
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propertySize,
&deviceIDs[0]) == noErr) {
char deviceName[64];
for (int idx = 0; idx < numDevices; idx++) {
propertyAddress.mSelector = kAudioDevicePropertyStreams;
if (AudioObjectGetPropertyDataSize(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize) == noErr) {
numStreams = propertySize / sizeof(AudioStreamID);
streamIDs.resize(numStreams);
if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, &streamIDs[0]) ==
noErr) {
propertyAddress.mSelector = kAudioStreamPropertyDirection;
bool foundOutput = false;
for (int stm = 0; stm < numStreams; stm++) {
UInt32 streamDir;
propertySize = sizeof(streamDir);
if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &propertySize, &streamDir) ==
noErr) {
if (streamDir == 0) {
foundOutput = true;
break;
}
}
}
if (!foundOutput)
continue;
}
}
propertySize = sizeof(deviceName);
propertyAddress.mSelector = kAudioDevicePropertyDeviceName;
if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, deviceName) ==
noErr) {
CFPointer<CFStringRef> uidString;
propertySize = sizeof(CFStringRef);
propertyAddress.mSelector = kAudioDevicePropertyDeviceUID;
if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, &uidString) ==
noErr) {
ret.emplace_back(CFStringGetCStringPtr(uidString.get(), kCFStringEncodingUTF8), deviceName);
}
}
}
}
}
return ret;
}
std::vector<std::pair<std::string, std::string>> enumerateMIDIInputs() const {
if (!m_midiClient)
return {};
std::vector<std::pair<std::string, std::string>> ret;
ItemCount numDevices = MIDIGetNumberOfDevices();
ret.reserve(numDevices);
for (int i = int(numDevices) - 1; i >= 0; --i) {
MIDIDeviceRef dev = MIDIGetDevice(i);
if (!dev)
continue;
bool isInput = false;
ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
for (ItemCount j = 0; j < numEnt; ++j) {
MIDIEntityRef ent = MIDIDeviceGetEntity(dev, j);
if (ent) {
ItemCount numSrc = MIDIEntityGetNumberOfSources(ent);
if (numSrc) {
isInput = true;
break;
}
}
}
if (!isInput)
continue;
SInt32 idNum;
if (MIDIObjectGetIntegerProperty(dev, kMIDIPropertyUniqueID, &idNum))
continue;
CFPointer<CFStringRef> namestr;
const char* nameCstr;
if (MIDIObjectGetStringProperty(dev, kMIDIPropertyName, &namestr))
continue;
if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
continue;
char idStr[9];
snprintf(idStr, 9, "%08X\n", idNum);
ret.push_back(std::make_pair(std::string(idStr), std::string(nameCstr)));
}
return ret;
}
bool supportsVirtualMIDIIn() const { return true; }
static MIDIDeviceRef LookupMIDIDevice(const char* name) {
ItemCount numDevices = MIDIGetNumberOfDevices();
for (ItemCount i = 0; i < numDevices; ++i) {
MIDIDeviceRef dev = MIDIGetDevice(i);
if (!dev)
continue;
SInt32 idNum;
if (MIDIObjectGetIntegerProperty(dev, kMIDIPropertyUniqueID, &idNum))
continue;
char idStr[9];
snprintf(idStr, 9, "%08X\n", idNum);
if (strcmp(idStr, name))
continue;
return dev;
}
return {};
}
static MIDIEndpointRef LookupMIDISource(const char* name) {
MIDIDeviceRef dev = LookupMIDIDevice(name);
if (!dev)
return {};
ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
for (ItemCount i = 0; i < numEnt; ++i) {
MIDIEntityRef ent = MIDIDeviceGetEntity(dev, i);
if (ent) {
ItemCount numSrc = MIDIEntityGetNumberOfSources(ent);
for (ItemCount s = 0; s < numSrc; ++s) {
MIDIEndpointRef src = MIDIEntityGetSource(ent, s);
if (src)
return src;
}
}
}
return {};
}
static MIDIEndpointRef LookupMIDIDest(const char* name) {
MIDIDeviceRef dev = LookupMIDIDevice(name);
if (!dev)
return {};
ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
for (ItemCount i = 0; i < numEnt; ++i) {
MIDIEntityRef ent = MIDIDeviceGetEntity(dev, i);
if (ent) {
ItemCount numDest = MIDIEntityGetNumberOfDestinations(ent);
for (ItemCount d = 0; d < numDest; ++d) {
MIDIEndpointRef dst = MIDIEntityGetDestination(ent, d);
if (dst)
return dst;
}
}
}
return {};
}
static void MIDIReceiveProc(const MIDIPacketList* pktlist, IMIDIReceiver* readProcRefCon, void*) {
const MIDIPacket* packet = &pktlist->packet[0];
for (int i = 0; i < pktlist->numPackets; ++i) {
std::vector<uint8_t> bytes(std::cbegin(packet->data), std::cbegin(packet->data) + packet->length);
readProcRefCon->m_receiver(std::move(bytes), AudioConvertHostTimeToNanos(packet->timeStamp) / 1.0e9);
packet = MIDIPacketNext(packet);
}
}
struct MIDIIn : public IMIDIIn {
MIDIEndpointRef m_midi = 0;
MIDIPortRef m_midiPort = 0;
MIDIIn(AQSAudioVoiceEngine* parent, bool virt, ReceiveFunctor&& receiver)
: IMIDIIn(parent, virt, std::move(receiver)) {}
~MIDIIn() {
if (m_midi)
MIDIEndpointDispose(m_midi);
if (m_midiPort)
MIDIPortDispose(m_midiPort);
}
std::string description() const {
CFPointer<CFStringRef> namestr;
const char* nameCstr;
if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyName, &namestr))
return {};
if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
return {};
return nameCstr;
}
};
struct MIDIOut : public IMIDIOut {
MIDIEndpointRef m_midi = 0;
MIDIPortRef m_midiPort = 0;
MIDIOut(AQSAudioVoiceEngine* parent, bool virt) : IMIDIOut(parent, virt) {}
~MIDIOut() {
if (m_midi)
MIDIEndpointDispose(m_midi);
if (m_midiPort)
MIDIPortDispose(m_midiPort);
}
std::string description() const {
CFPointer<CFStringRef> namestr;
const char* nameCstr;
if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyName, &namestr))
return {};
if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
return {};
return nameCstr;
}
size_t send(const void* buf, size_t len) const {
union {
MIDIPacketList head;
Byte storage[512];
} list;
MIDIPacket* curPacket = MIDIPacketListInit(&list.head);
if (MIDIPacketListAdd(&list.head, sizeof(list), curPacket, AudioGetCurrentHostTime(), len,
reinterpret_cast<const Byte*>(buf))) {
if (m_midiPort)
MIDISend(m_midiPort, m_midi, &list.head);
else
MIDIReceived(m_midi, &list.head);
return len;
}
return 0;
}
};
struct MIDIInOut : public IMIDIInOut {
MIDIEndpointRef m_midiIn = 0;
MIDIPortRef m_midiPortIn = 0;
MIDIEndpointRef m_midiOut = 0;
MIDIPortRef m_midiPortOut = 0;
MIDIInOut(AQSAudioVoiceEngine* parent, bool virt, ReceiveFunctor&& receiver)
: IMIDIInOut(parent, virt, std::move(receiver)) {}
~MIDIInOut() {
if (m_midiIn)
MIDIEndpointDispose(m_midiIn);
if (m_midiPortIn)
MIDIPortDispose(m_midiPortIn);
if (m_midiOut)
MIDIEndpointDispose(m_midiOut);
if (m_midiPortOut)
MIDIPortDispose(m_midiPortOut);
}
std::string description() const {
CFPointer<CFStringRef> namestr;
const char* nameCstr;
if (MIDIObjectGetStringProperty(m_midiIn, kMIDIPropertyName, &namestr))
return {};
if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
return {};
return nameCstr;
}
size_t send(const void* buf, size_t len) const {
union {
MIDIPacketList head;
Byte storage[512];
} list;
MIDIPacket* curPacket = MIDIPacketListInit(&list.head);
if (MIDIPacketListAdd(&list.head, sizeof(list), curPacket, AudioGetCurrentHostTime(), len,
reinterpret_cast<const Byte*>(buf))) {
if (m_midiPortOut)
MIDISend(m_midiPortOut, m_midiOut, &list.head);
else
MIDIReceived(m_midiOut, &list.head);
return len;
}
return 0;
}
};
unsigned m_midiInCounter = 0;
unsigned m_midiOutCounter = 0;
std::unique_ptr<IMIDIIn> newVirtualMIDIIn(ReceiveFunctor&& receiver) {
if (!m_midiClient)
return {};
std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(this, true, std::move(receiver));
if (!ret)
return {};
char name[256];
auto appName = APP->getFriendlyName();
if (!m_midiInCounter)
snprintf(name, 256, "%s MIDI-In", appName.data());
else
snprintf(name, 256, "%s MIDI-In %u", appName.data(), m_midiInCounter);
m_midiInCounter++;
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
OSStatus stat;
if ((stat = MIDIDestinationCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
static_cast<IMIDIReceiver*>(ret.get()), &static_cast<MIDIIn&>(*ret).m_midi)))
ret.reset();
return ret;
}
std::unique_ptr<IMIDIOut> newVirtualMIDIOut() {
if (!m_midiClient)
return {};
std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(this, true);
if (!ret)
return {};
char name[256];
auto appName = APP->getFriendlyName();
if (!m_midiOutCounter)
snprintf(name, 256, "%s MIDI-Out", appName.data());
else
snprintf(name, 256, "%s MIDI-Out %u", appName.data(), m_midiOutCounter);
m_midiOutCounter++;
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDISourceCreate(m_midiClient, midiName.get(), &static_cast<MIDIOut&>(*ret).m_midi))
ret.reset();
return ret;
}
std::unique_ptr<IMIDIInOut> newVirtualMIDIInOut(ReceiveFunctor&& receiver) {
if (!m_midiClient)
return {};
std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(this, true, std::move(receiver));
if (!ret)
return {};
char name[256];
auto appName = APP->getFriendlyName();
if (!m_midiInCounter)
snprintf(name, 256, "%s MIDI-In", appName.data());
else
snprintf(name, 256, "%s MIDI-In %u", appName.data(), m_midiInCounter);
m_midiInCounter++;
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDIDestinationCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
static_cast<IMIDIReceiver*>(ret.get()), &static_cast<MIDIInOut&>(*ret).m_midiIn))
ret.reset();
if (!ret)
return {};
if (!m_midiOutCounter)
snprintf(name, 256, "%s MIDI-Out", appName.data());
else
snprintf(name, 256, "%s MIDI-Out %u", appName.data(), m_midiOutCounter);
m_midiOutCounter++;
midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDISourceCreate(m_midiClient, midiName.get(), &static_cast<MIDIInOut&>(*ret).m_midiOut))
ret.reset();
return ret;
}
std::unique_ptr<IMIDIIn> newRealMIDIIn(const char* name, ReceiveFunctor&& receiver) {
if (!m_midiClient)
return {};
MIDIEndpointRef src = LookupMIDISource(name);
if (!src)
return {};
std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(this, false, std::move(receiver));
if (!ret)
return {};
char mname[256];
snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDIInputPortCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
static_cast<IMIDIReceiver*>(ret.get()), &static_cast<MIDIIn&>(*ret).m_midiPort))
ret.reset();
else
MIDIPortConnectSource(static_cast<MIDIIn&>(*ret).m_midiPort, src, nullptr);
return ret;
}
std::unique_ptr<IMIDIOut> newRealMIDIOut(const char* name) {
if (!m_midiClient)
return {};
MIDIEndpointRef dst = LookupMIDIDest(name);
if (!dst)
return {};
std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(this, false);
if (!ret)
return {};
char mname[256];
snprintf(mname, 256, "Boo MIDI Real Out %u", m_midiOutCounter++);
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDIOutputPortCreate(m_midiClient, midiName.get(), &static_cast<MIDIOut&>(*ret).m_midiPort))
ret.reset();
else
static_cast<MIDIOut&>(*ret).m_midi = dst;
return ret;
}
std::unique_ptr<IMIDIInOut> newRealMIDIInOut(const char* name, ReceiveFunctor&& receiver) {
if (!m_midiClient)
return {};
MIDIEndpointRef src = LookupMIDISource(name);
if (!src)
return {};
MIDIEndpointRef dst = LookupMIDIDest(name);
if (!dst)
return {};
std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(this, false, std::move(receiver));
if (!ret)
return {};
char mname[256];
snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDIInputPortCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
static_cast<IMIDIReceiver*>(ret.get()), &static_cast<MIDIInOut&>(*ret).m_midiPortIn))
ret.reset();
else
MIDIPortConnectSource(static_cast<MIDIInOut&>(*ret).m_midiPortIn, src, nullptr);
if (!ret)
return {};
snprintf(mname, 256, "Boo MIDI Real Out %u", m_midiOutCounter++);
midiName = CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
if (MIDIOutputPortCreate(m_midiClient, midiName.get(), &static_cast<MIDIInOut&>(*ret).m_midiPortOut))
ret.reset();
else
static_cast<MIDIInOut&>(*ret).m_midiOut = dst;
return ret;
}
bool useMIDILock() const { return true; }
static void SampleRateChanged(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueuePropertyID inID) {
engine->m_needsRebuild = true;
}
void _rebuildAudioQueue() {
if (m_queue) {
m_cbRunning = false;
AudioQueueDispose(m_queue, true);
m_cbRunning = true;
m_queue = nullptr;
}
auto setAndRate = _getAvailableSetAndRate();
m_mixInfo.m_channels = setAndRate.first;
unsigned chCount = ChannelCount(m_mixInfo.m_channels);
AudioStreamBasicDescription desc = {};
desc.mSampleRate = setAndRate.second;
desc.mFormatID = kAudioFormatLinearPCM;
desc.mFormatFlags = kLinearPCMFormatFlagIsFloat;
desc.mBytesPerPacket = chCount * 4;
desc.mFramesPerPacket = 1;
desc.mBytesPerFrame = chCount * 4;
desc.mChannelsPerFrame = chCount;
desc.mBitsPerChannel = 32;
OSStatus err;
if ((err = AudioQueueNewOutput(&desc, AudioQueueOutputCallback(Callback), this, CFRunLoopGetCurrent(),
m_runLoopMode.get(), 0, &m_queue))) {
Log.report(logvisor::Fatal, "unable to create output audio queue");
return;
}
CFStringRef devName = m_devName.get();
if ((err = AudioQueueSetProperty(m_queue, kAudioQueueProperty_CurrentDevice, &devName, sizeof(devName)))) {
Log.report(logvisor::Fatal, "unable to set current device into audio queue");
return;
}
AudioQueueAddPropertyListener(m_queue, kAudioQueueDeviceProperty_SampleRate,
AudioQueuePropertyListenerProc(SampleRateChanged), this);
m_mixInfo.m_sampleRate = desc.mSampleRate;
m_mixInfo.m_sampleFormat = SOXR_FLOAT32_I;
m_mixInfo.m_bitsPerSample = 32;
m_5msFrames = desc.mSampleRate * 5 / 1000;
ChannelMap& chMapOut = m_mixInfo.m_channelMap;
chMapOut.m_channelCount = 0;
if (chCount > 2) {
AudioChannelLayout layout;
UInt32 layoutSz = sizeof(layout);
if (AudioQueueGetProperty(m_queue, kAudioQueueProperty_ChannelLayout, &layout, &layoutSz)) {
Log.report(logvisor::Warning, "unable to get channel layout from audio queue; using count's default");
switch (m_mixInfo.m_channels) {
case AudioChannelSet::Stereo:
default:
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
break;
case AudioChannelSet::Quad:
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearRight;
break;
case AudioChannelSet::Surround51:
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontCenter;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::LFE;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearRight;
break;
case AudioChannelSet::Surround71:
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontCenter;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::LFE;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideRight;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearRight;
break;
}
} else {
switch (layout.mChannelLayoutTag) {
case kAudioChannelLayoutTag_UseChannelDescriptions:
chMapOut.m_channelCount = layout.mNumberChannelDescriptions;
for (int i = 0; i < layout.mNumberChannelDescriptions; ++i) {
AudioChannel ch = AQSChannelToBooChannel(layout.mChannelDescriptions[i].mChannelLabel);
chMapOut.m_channels[i] = ch;
}
break;
case kAudioChannelLayoutTag_UseChannelBitmap:
if ((layout.mChannelBitmap & kAudioChannelBit_Left) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
if ((layout.mChannelBitmap & kAudioChannelBit_Right) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
if ((layout.mChannelBitmap & kAudioChannelBit_Center) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontCenter;
if ((layout.mChannelBitmap & kAudioChannelBit_LFEScreen) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::LFE;
if ((layout.mChannelBitmap & kAudioChannelBit_LeftSurround) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearLeft;
if ((layout.mChannelBitmap & kAudioChannelBit_RightSurround) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearRight;
if ((layout.mChannelBitmap & kAudioChannelBit_LeftSurroundDirect) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideLeft;
if ((layout.mChannelBitmap & kAudioChannelBit_RightSurroundDirect) != 0)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideRight;
break;
case kAudioChannelLayoutTag_Stereo:
case kAudioChannelLayoutTag_StereoHeadphones:
chMapOut.m_channelCount = 2;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
break;
case kAudioChannelLayoutTag_Quadraphonic:
chMapOut.m_channelCount = 4;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
chMapOut.m_channels[2] = AudioChannel::RearLeft;
chMapOut.m_channels[3] = AudioChannel::RearRight;
break;
case kAudioChannelLayoutTag_Pentagonal:
chMapOut.m_channelCount = 5;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
chMapOut.m_channels[2] = AudioChannel::RearLeft;
chMapOut.m_channels[3] = AudioChannel::RearRight;
chMapOut.m_channels[4] = AudioChannel::FrontCenter;
break;
default:
Log.report(logvisor::Warning, "unknown channel layout %u; using stereo", layout.mChannelLayoutTag);
chMapOut.m_channelCount = 2;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
break;
}
}
} else {
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
}
while (chMapOut.m_channelCount < chCount)
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::Unknown;
m_mixInfo.m_periodFrames = m_5msFrames;
for (int i = 0; i < AQS_NUM_BUFFERS; ++i)
if (AudioQueueAllocateBuffer(m_queue, m_mixInfo.m_periodFrames * chCount * 4, &m_buffers[i])) {
Log.report(logvisor::Fatal, "unable to create audio queue buffer");
AudioQueueDispose(m_queue, false);
m_queue = nullptr;
return;
}
m_frameBytes = m_mixInfo.m_periodFrames * m_mixInfo.m_channelMap.m_channelCount * 4;
_resetSampleRate();
for (unsigned i = 0; i < AQS_NUM_BUFFERS; ++i) {
memset(m_buffers[i]->mAudioData, 0, m_frameBytes);
m_buffers[i]->mAudioDataByteSize = m_frameBytes;
AudioQueueEnqueueBuffer(m_queue, m_buffers[i], 0, nullptr);
}
AudioQueuePrime(m_queue, 0, nullptr);
AudioQueueStart(m_queue, nullptr);
}
static OSStatus AudioDeviceChanged(AudioObjectID inObjectID, UInt32 inNumberAddresses,
const AudioObjectPropertyAddress* inAddresses, AQSAudioVoiceEngine* engine) {
AudioObjectID defaultDeviceId;
UInt32 argSize = sizeof(defaultDeviceId);
if (AudioObjectGetPropertyData(inObjectID, inAddresses, 0, NULL, &argSize, &defaultDeviceId) == noErr) {
argSize = sizeof(CFStringRef);
AudioObjectPropertyAddress deviceAddress;
deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
AudioObjectGetPropertyData(defaultDeviceId, &deviceAddress, 0, NULL, &argSize, &engine->m_devName);
}
engine->m_needsRebuild = true;
return noErr;
}
AQSAudioVoiceEngine()
: m_runLoopMode(CFPointer<CFStringRef>::adopt(
CFStringCreateWithCStringNoCopy(nullptr, "BooAQSMode", kCFStringEncodingUTF8, kCFAllocatorNull))) {
AudioObjectPropertyAddress propertyAddress;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
AudioObjectID defaultDeviceId;
UInt32 argSize = sizeof(defaultDeviceId);
propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &argSize, &defaultDeviceId) ==
noErr) {
argSize = sizeof(CFStringRef);
AudioObjectPropertyAddress deviceAddress;
deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
AudioObjectGetPropertyData(defaultDeviceId, &deviceAddress, 0, NULL, &argSize, &m_devName);
} else {
Log.report(logvisor::Fatal, "unable determine default audio device");
return;
}
propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
AudioObjectAddPropertyListener(kAudioObjectSystemObject, &propertyAddress,
AudioObjectPropertyListenerProc(AudioDeviceChanged), this);
_rebuildAudioQueue();
/* Also create shared MIDI client */
MIDIClientCreate(CFSTR("Boo MIDI"), nullptr, nullptr, &m_midiClient);
}
~AQSAudioVoiceEngine() {
m_cbRunning = false;
AudioQueueDispose(m_queue, true);
if (m_midiClient)
MIDIClientDispose(m_midiClient);
}
void pumpAndMixVoices() {
while (CFRunLoopRunInMode(m_runLoopMode.get(), 0, true) == kCFRunLoopRunHandledSource) {}
if (m_needsRebuild) {
_rebuildAudioQueue();
m_needsRebuild = false;
}
}
};
std::unique_ptr<IAudioVoiceEngine> NewAudioVoiceEngine() {
std::unique_ptr<IAudioVoiceEngine> ret = std::make_unique<AQSAudioVoiceEngine>();
if (!static_cast<AQSAudioVoiceEngine&>(*ret).m_queue)
return {};
return ret;
}
} // namespace boo