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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qdarwinmediadevices_p.h"
#include "qmediadevices.h"
#include "private/qaudiodevice_p.h"
#include "qdarwinaudiodevice_p.h"
#include "qdarwinaudiosource_p.h"
#include "qdarwinaudiosink_p.h"
#include <qloggingcategory.h>
#include <qdebug.h>
#if defined(Q_OS_IOS)
#include "qcoreaudiosessionmanager_p.h"
#import <AVFoundation/AVFoundation.h>
#else
#include "qmacosaudiodatautils_p.h"
#endif
#if defined(Q_OS_MACOS)
static Q_LOGGING_CATEGORY(qLcDarwinMediaDevices, "qt.multimedia.darwin.mediaDevices")
#endif
QT_BEGIN_NAMESPACE
template<typename... Args>
QAudioDevice createAudioDevice(bool isDefault, Args &&...args)
{
auto *dev = new QCoreAudioDeviceInfo(std::forward<Args>(args)...);
dev->isDefault = isDefault;
return dev->create();
}
#if defined(Q_OS_MACOS)
static AudioDeviceID defaultAudioDevice(QAudioDevice::Mode mode)
{
const AudioObjectPropertySelector selector = (mode == QAudioDevice::Output) ? kAudioHardwarePropertyDefaultOutputDevice
: kAudioHardwarePropertyDefaultInputDevice;
const AudioObjectPropertyAddress propertyAddress = {
selector,
kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMain,
};
if (auto audioDevice = getAudioObject<AudioDeviceID>(kAudioObjectSystemObject, propertyAddress,
"Default Device")) {
return *audioDevice;
}
return 0;
}
static QByteArray uniqueId(AudioDeviceID device, QAudioDevice::Mode mode)
{
const AudioObjectPropertyAddress propertyAddress =
makePropertyAddress(kAudioDevicePropertyDeviceUID, mode);
if (auto name = getAudioObject<CFStringRef>(device, propertyAddress, "Device UID")) {
QString s = QString::fromCFString(*name);
CFRelease(*name);
return s.toUtf8();
}
return QByteArray();
}
static QList<QAudioDevice> availableAudioDevices(QAudioDevice::Mode mode)
{
QList<QAudioDevice> devices;
AudioDeviceID defaultDevice = defaultAudioDevice(mode);
if (defaultDevice != 0)
devices << createAudioDevice(true, defaultDevice, uniqueId(defaultDevice, mode), mode);
const AudioObjectPropertyAddress audioDevicesPropertyAddress = {
kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMain
};
if (auto audioDevices = getAudioData<AudioDeviceID>(
kAudioObjectSystemObject, audioDevicesPropertyAddress, "Audio Devices")) {
const AudioObjectPropertyAddress audioDeviceStreamFormatPropertyAddress =
makePropertyAddress(kAudioDevicePropertyStreamFormat, mode);
for (const auto &device : *audioDevices) {
if (device == defaultDevice)
continue;
if (getAudioObject<AudioStreamBasicDescription>(device,
audioDeviceStreamFormatPropertyAddress,
nullptr /*don't print logs*/)) {
devices << createAudioDevice(false, device, uniqueId(device, mode), mode);
}
}
}
return devices;
}
static OSStatus audioDeviceChangeListener(AudioObjectID id, UInt32,
const AudioObjectPropertyAddress *address, void *ptr)
{
Q_ASSERT(address);
Q_ASSERT(ptr);
QDarwinMediaDevices *instance = static_cast<QDarwinMediaDevices *>(ptr);
qCDebug(qLcDarwinMediaDevices)
<< "audioDeviceChangeListener: id:" << id << "address: " << address->mSelector
<< address->mScope << address->mElement;
switch (address->mSelector) {
case kAudioHardwarePropertyDefaultInputDevice:
instance->onInputsUpdated();
break;
case kAudioHardwarePropertyDefaultOutputDevice:
instance->onOutputsUpdated();
break;
default:
instance->onInputsUpdated();
instance->onOutputsUpdated();
break;
}
return 0;
}
static constexpr AudioObjectPropertyAddress listenerAddresses[] = {
{ kAudioHardwarePropertyDefaultInputDevice, kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMain },
{ kAudioHardwarePropertyDefaultOutputDevice, kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMain },
{ kAudioHardwarePropertyDevices, kAudioObjectPropertyScopeGlobal,
kAudioObjectPropertyElementMain }
};
static void setAudioListeners(QDarwinMediaDevices &instance)
{
for (const auto &address : listenerAddresses) {
const auto err = AudioObjectAddPropertyListener(kAudioObjectSystemObject, &address,
audioDeviceChangeListener, &instance);
if (err)
qWarning() << "Fail to add listener. mSelector:" << address.mSelector
<< "mScope:" << address.mScope << "mElement:" << address.mElement
<< "err:" << err;
}
}
static void removeAudioListeners(QDarwinMediaDevices &instance)
{
for (const auto &address : listenerAddresses) {
const auto err = AudioObjectRemovePropertyListener(kAudioObjectSystemObject, &address,
audioDeviceChangeListener, &instance);
if (err)
qWarning() << "Fail to remove listener. mSelector:" << address.mSelector
<< "mScope:" << address.mScope << "mElement:" << address.mElement
<< "err:" << err;
}
}
#elif defined(Q_OS_IOS)
static QList<QAudioDevice> availableAudioDevices(QAudioDevice::Mode mode)
{
QList<QAudioDevice> devices;
if (mode == QAudioDevice::Output) {
devices.append(createAudioDevice(true, "default", QAudioDevice::Output));
} else {
AVCaptureDevice *defaultDevice =
[AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
// TODO: Support Bluetooth and USB devices
AVCaptureDeviceDiscoverySession *captureDeviceDiscoverySession =
[AVCaptureDeviceDiscoverySession
discoverySessionWithDeviceTypes:@[ AVCaptureDeviceTypeBuiltInMicrophone ]
mediaType:AVMediaTypeAudio
position:AVCaptureDevicePositionUnspecified];
NSArray *captureDevices = [captureDeviceDiscoverySession devices];
for (AVCaptureDevice *device in captureDevices) {
const bool isDefault =
defaultDevice && [defaultDevice.uniqueID isEqualToString:device.uniqueID];
devices.append(createAudioDevice(isDefault,
QString::fromNSString(device.uniqueID).toUtf8(),
QAudioDevice::Input));
}
}
return devices;
}
static void setAudioListeners(QDarwinMediaDevices &)
{
// ### This should use the audio session manager
}
static void removeAudioListeners(QDarwinMediaDevices &)
{
// ### This should use the audio session manager
}
#endif
QDarwinMediaDevices::QDarwinMediaDevices()
: QPlatformMediaDevices()
{
#ifdef Q_OS_MACOS // TODO: implement setAudioListeners, removeAudioListeners for Q_OS_IOS, after
// that - remove or modify the define
m_cachedAudioInputs = availableAudioDevices(QAudioDevice::Input);
m_cachedAudioOutputs = availableAudioDevices(QAudioDevice::Output);
#endif
setAudioListeners(*this);
}
QDarwinMediaDevices::~QDarwinMediaDevices()
{
removeAudioListeners(*this);
}
QList<QAudioDevice> QDarwinMediaDevices::audioInputs() const
{
return availableAudioDevices(QAudioDevice::Input);
}
QList<QAudioDevice> QDarwinMediaDevices::audioOutputs() const
{
return availableAudioDevices(QAudioDevice::Output);
}
void QDarwinMediaDevices::onInputsUpdated()
{
auto inputs = availableAudioDevices(QAudioDevice::Input);
if (m_cachedAudioInputs != inputs) {
m_cachedAudioInputs = inputs;
emit audioInputsChanged();
}
}
void QDarwinMediaDevices::onOutputsUpdated()
{
auto outputs = availableAudioDevices(QAudioDevice::Output);
if (m_cachedAudioOutputs != outputs) {
m_cachedAudioOutputs = outputs;
emit audioOutputsChanged();
}
}
QPlatformAudioSource *QDarwinMediaDevices::createAudioSource(const QAudioDevice &info,
QObject *parent)
{
return new QDarwinAudioSource(info, parent);
}
QPlatformAudioSink *QDarwinMediaDevices::createAudioSink(const QAudioDevice &info,
QObject *parent)
{
return new QDarwinAudioSink(info, parent);
}
QT_END_NAMESPACE
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