try to fix audio crash on startup

interface/src/Application.cpp

@@ -1102,10 +1102,9 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
         auto audioScriptingInterface = DependencyManager::get<AudioScriptingInterface>();
         auto myAvatarPosition = DependencyManager::get<AvatarManager>()->getMyAvatar()->getWorldPosition();
         float distance = glm::distance(myAvatarPosition, position);
-        bool shouldMute = !audioClient->isMuted() && (distance < radius);
 
-        if (shouldMute) {
-            audioClient->toggleMute();
+        if (distance < radius) {
+            audioClient->setMuted(true);
             audioScriptingInterface->environmentMuted();
         }
     });
@@ -1508,7 +1507,8 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
 
         if (state) {
             if (action == controller::toInt(controller::Action::TOGGLE_MUTE)) {
-                DependencyManager::get<AudioClient>()->toggleMute();
+                auto audioClient = DependencyManager::get<AudioClient>();
+                audioClient->setMuted(!audioClient->isMuted());
             } else if (action == controller::toInt(controller::Action::CYCLE_CAMERA)) {
                 cycleCamera();
             } else if (action == controller::toInt(controller::Action::CONTEXT_MENU)) {
@@ -3461,7 +3461,8 @@ void Application::keyPressEvent(QKeyEvent* event) {
 
             case Qt::Key_M:
                 if (isMeta) {
-                    DependencyManager::get<AudioClient>()->toggleMute();
+                    auto audioClient = DependencyManager::get<AudioClient>();
+                    audioClient->setMuted(!audioClient->isMuted());
                 }
                 break;
 
@@ -5119,7 +5120,7 @@ void Application::update(float deltaTime) {
                 if (menu->isOptionChecked(MenuOption::AutoMuteAudio) && !audioClient->isMuted()) {
                     if (_lastFaceTrackerUpdate > 0
                         && ((usecTimestampNow() - _lastFaceTrackerUpdate) > MUTE_MICROPHONE_AFTER_USECS)) {
-                        audioClient->toggleMute();
+                        audioClient->setMuted(true);
                         _lastFaceTrackerUpdate = 0;
                     }
                 } else {

interface/src/scripting/Audio.cpp

@@ -50,110 +50,162 @@ float Audio::loudnessToLevel(float loudness) {
 
 Audio::Audio() : _devices(_contextIsHMD) {
     auto client = DependencyManager::get<AudioClient>().data();
-    connect(client, &AudioClient::muteToggled, this, &Audio::onMutedChanged);
-    connect(client, &AudioClient::noiseReductionChanged, this, &Audio::onNoiseReductionChanged);
+    connect(client, &AudioClient::muteToggled, this, &Audio::setMuted);
+    connect(client, &AudioClient::noiseReductionChanged, this, &Audio::enableNoiseReduction);
     connect(client, &AudioClient::inputLoudnessChanged, this, &Audio::onInputLoudnessChanged);
-    connect(client, &AudioClient::inputVolumeChanged, this, &Audio::onInputVolumeChanged);
+    connect(client, &AudioClient::inputVolumeChanged, this, &Audio::setInputVolume);
     connect(this, &Audio::contextChanged, &_devices, &AudioDevices::onContextChanged);
     enableNoiseReduction(enableNoiseReductionSetting.get());
 }
 
 bool Audio::startRecording(const QString& filepath) {
     auto client = DependencyManager::get<AudioClient>().data();
-    return client->startRecording(filepath);
+    return resultWithWriteLock<bool>([&] {
+        return client->startRecording(filepath);
+    });
 }
 
 bool Audio::getRecording() {
     auto client = DependencyManager::get<AudioClient>().data();
-    return client->getRecording();
+    return resultWithReadLock<bool>([&] {
+        return client->getRecording();
+    });
 }
 
 void Audio::stopRecording() {
     auto client = DependencyManager::get<AudioClient>().data();
-    client->stopRecording();
+    withWriteLock([&] {
+        client->stopRecording();
+    });
+}
+
+bool Audio::isMuted() const {
+    return resultWithReadLock<bool>([&] {
+        return _isMuted;
+    });
 }
 
 void Audio::setMuted(bool isMuted) {
-    if (_isMuted != isMuted) {
-        auto client = DependencyManager::get<AudioClient>().data();
-        QMetaObject::invokeMethod(client, "toggleMute");
+    bool changed = false;
+    withWriteLock([&] {
+        if (_isMuted != isMuted) {
+            _isMuted = isMuted;
+            auto client = DependencyManager::get<AudioClient>().data();
+            QMetaObject::invokeMethod(client, "setMuted", Q_ARG(bool, isMuted), Q_ARG(bool, false));
+            changed = true;
+        }
+    });
+    if (changed) {
+        emit mutedChanged(isMuted);
     }
 }
 
-void Audio::onMutedChanged() {
-    bool isMuted = DependencyManager::get<AudioClient>()->isMuted();
-    if (_isMuted != isMuted) {
-        _isMuted = isMuted;
-        emit mutedChanged(_isMuted);
-    }
+bool Audio::noiseReductionEnabled() const {
+    return resultWithReadLock<bool>([&] {
+        return _enableNoiseReduction;
+    });
 }
 
 void Audio::enableNoiseReduction(bool enable) {
-    if (_enableNoiseReduction != enable) {
-        auto client = DependencyManager::get<AudioClient>().data();
-        QMetaObject::invokeMethod(client, "setNoiseReduction", Q_ARG(bool, enable));
-        enableNoiseReductionSetting.set(enable);
+    bool changed = false;
+    withWriteLock([&] {
+        if (_enableNoiseReduction != enable) {
+            _enableNoiseReduction = enable;
+            auto client = DependencyManager::get<AudioClient>().data();
+            QMetaObject::invokeMethod(client, "setNoiseReduction", Q_ARG(bool, enable), Q_ARG(bool, false));
+            enableNoiseReductionSetting.set(enable);
+            changed = true;
+        }
+    });
+    if (changed) {
+        emit noiseReductionChanged(enable);
     }
 }
 
-void Audio::onNoiseReductionChanged() {
-    bool noiseReductionEnabled = DependencyManager::get<AudioClient>()->isNoiseReductionEnabled();
-    if (_enableNoiseReduction != noiseReductionEnabled) {
-        _enableNoiseReduction = noiseReductionEnabled;
-        emit noiseReductionChanged(_enableNoiseReduction);
-    }
+float Audio::getInputVolume() const {
+    return resultWithReadLock<bool>([&] {
+        return _inputVolume;
+    });
 }
 
 void Audio::setInputVolume(float volume) {
     // getInputVolume will not reflect changes synchronously, so clamp beforehand
     volume = glm::clamp(volume, 0.0f, 1.0f);
 
-    if (_inputVolume != volume) {
-        auto client = DependencyManager::get<AudioClient>().data();
-        QMetaObject::invokeMethod(client, "setInputVolume", Q_ARG(float, volume));
+    bool changed = false;
+    withWriteLock([&] {
+        if (_inputVolume != volume) {
+            _inputVolume = volume;
+            auto client = DependencyManager::get<AudioClient>().data();
+            QMetaObject::invokeMethod(client, "setInputVolume", Q_ARG(float, volume), Q_ARG(bool, false));
+            changed = true;
+        }
+    });
+    if (changed) {
+        emit inputVolumeChanged(volume);
     }
 }
 
-void Audio::onInputVolumeChanged(float volume) {
-    if (_inputVolume != volume) {
-        _inputVolume = volume;
-        emit inputVolumeChanged(_inputVolume);
-    }
+float Audio::getInputLevel() const {
+    return resultWithReadLock<bool>([&] {
+        return _inputLevel;
+    });
 }
 
 void Audio::onInputLoudnessChanged(float loudness) {
     float level = loudnessToLevel(loudness);
-
-    if (_inputLevel != level) {
-        _inputLevel = level;
-        emit inputLevelChanged(_inputLevel);
+    bool changed = false;
+    withWriteLock([&] {
+        if (_inputLevel != level) {
+            _inputLevel = level;
+            changed = true;
+        }
+    });
+    if (changed) {
+        emit inputLevelChanged(level);
     }
 }
 
 QString Audio::getContext() const {
-     return _contextIsHMD ? Audio::HMD : Audio::DESKTOP;
+    return resultWithReadLock<QString>([&] {
+        return _contextIsHMD ? Audio::HMD : Audio::DESKTOP;
+    });
 }
 
 void Audio::onContextChanged() {
+    bool changed = false;
     bool isHMD = qApp->isHMDMode();
-    if (_contextIsHMD != isHMD) {
-        _contextIsHMD = isHMD;
-        emit contextChanged(getContext());
+    withWriteLock([&] {
+        if (_contextIsHMD != isHMD) {
+            _contextIsHMD = isHMD;
+            changed = true;
+        }
+    });
+    if (changed) {
+        emit contextChanged(isHMD ? Audio::HMD : Audio::DESKTOP);
     }
 }
 
 void Audio::setReverb(bool enable) {
-    DependencyManager::get<AudioClient>()->setReverb(enable);
+    withWriteLock([&] {
+        DependencyManager::get<AudioClient>()->setReverb(enable);
+    });
 }
 
 void Audio::setReverbOptions(const AudioEffectOptions* options) {
-    DependencyManager::get<AudioClient>()->setReverbOptions(options);
+    withWriteLock([&] {
+        DependencyManager::get<AudioClient>()->setReverbOptions(options);
+    });
 }
 
 void Audio::setInputDevice(const QAudioDeviceInfo& device, bool isHMD) {
-    _devices.chooseInputDevice(device, isHMD);
+    withWriteLock([&] {
+        _devices.chooseInputDevice(device, isHMD);
+    });
 }
 
 void Audio::setOutputDevice(const QAudioDeviceInfo& device, bool isHMD) {
-    _devices.chooseOutputDevice(device, isHMD);
+    withWriteLock([&] {
+        _devices.chooseOutputDevice(device, isHMD);
+    });
 }

interface/src/scripting/Audio.h

@@ -17,10 +17,11 @@
 #include "AudioEffectOptions.h"
 #include "SettingHandle.h"
 #include "AudioFileWav.h"
+#include <shared/ReadWriteLockable.h>
 
 namespace scripting {
 
-class Audio : public AudioScriptingInterface {
+class Audio : public AudioScriptingInterface, protected ReadWriteLockable {
     Q_OBJECT
     SINGLETON_DEPENDENCY
 
@@ -40,16 +41,13 @@ public:
 
     virtual ~Audio() {}
 
-    bool isMuted() const { return _isMuted; }
-    bool noiseReductionEnabled() const { return _enableNoiseReduction; }
-    float getInputVolume() const { return _inputVolume; }
-    float getInputLevel() const { return _inputLevel; }
+    bool isMuted() const;
+    bool noiseReductionEnabled() const;
+    float getInputVolume() const;
+    float getInputLevel() const;
     QString getContext() const;
 
-    void setMuted(bool muted);
-    void enableNoiseReduction(bool enable);
     void showMicMeter(bool show);
-    void setInputVolume(float volume);
 
     Q_INVOKABLE void setInputDevice(const QAudioDeviceInfo& device, bool isHMD);
     Q_INVOKABLE void setOutputDevice(const QAudioDeviceInfo& device, bool isHMD);
@@ -72,9 +70,9 @@ public slots:
     void onContextChanged();
 
 private slots:
-    void onMutedChanged();
-    void onNoiseReductionChanged();
-    void onInputVolumeChanged(float volume);
+    void setMuted(bool muted);
+    void enableNoiseReduction(bool enable);
+    void setInputVolume(float volume);
     void onInputLoudnessChanged(float loudness);
 
 protected:

libraries/audio-client/src/AudioClient.cpp

@@ -757,7 +757,7 @@ void AudioClient::Gate::flush() {
 
 void AudioClient::handleNoisyMutePacket(QSharedPointer<ReceivedMessage> message) {
     if (!_muted) {
-        toggleMute();
+        setMuted(true);
 
         // have the audio scripting interface emit a signal to say we were muted by the mixer
         emit mutedByMixer();
@@ -1384,15 +1384,21 @@ void AudioClient::sendMuteEnvironmentPacket() {
     }
 }
 
-void AudioClient::toggleMute() {
-    _muted = !_muted;
-    emit muteToggled();
+void AudioClient::setMuted(bool muted, bool emitSignal) {
+    if (_muted != muted) {
+        _muted = muted;
+        if (emitSignal) {
+            emit muteToggled(_muted);
+        }
+    }
 }
 
-void AudioClient::setNoiseReduction(bool enable) {
+void AudioClient::setNoiseReduction(bool enable, bool emitSignal) {
     if (_isNoiseGateEnabled != enable) {
         _isNoiseGateEnabled = enable;
-        emit noiseReductionChanged();
+        if (emitSignal) {
+            emit noiseReductionChanged(_isNoiseGateEnabled);
+        }
     }
 }
 
@@ -2018,9 +2024,11 @@ void AudioClient::startThread() {
     moveToNewNamedThread(this, "Audio Thread", [this] { start(); });
 }
 
-void AudioClient::setInputVolume(float volume) {
+void AudioClient::setInputVolume(float volume, bool emitSignal) {
     if (_audioInput && volume != (float)_audioInput->volume()) {
         _audioInput->setVolume(volume);
-        emit inputVolumeChanged(_audioInput->volume());
+        if (emitSignal) {
+            emit inputVolumeChanged(_audioInput->volume());
+        }
     }
 }

libraries/audio-client/src/AudioClient.h

@@ -189,13 +189,13 @@ public slots:
     void reset();
     void audioMixerKilled();
 
-    void toggleMute();
+    void setMuted(bool muted, bool emitSignal = true);
     bool isMuted() { return _muted; }
 
     virtual bool setIsStereoInput(bool stereo) override;
     virtual bool isStereoInput() override { return _isStereoInput; }
 
-    void setNoiseReduction(bool isNoiseGateEnabled);
+    void setNoiseReduction(bool isNoiseGateEnabled, bool emitSignal = true);
     bool isNoiseReductionEnabled() const { return _isNoiseGateEnabled; }
 
     bool getLocalEcho() { return _shouldEchoLocally; }
@@ -218,7 +218,7 @@ public slots:
     bool switchAudioDevice(QAudio::Mode mode, const QString& deviceName);
 
     float getInputVolume() const { return (_audioInput) ? (float)_audioInput->volume() : 0.0f; }
-    void setInputVolume(float volume);
+    void setInputVolume(float volume, bool emitSignal = true);
     void setReverb(bool reverb);
     void setReverbOptions(const AudioEffectOptions* options);
 
@@ -229,8 +229,8 @@ public slots:
 
 signals:
     void inputVolumeChanged(float volume);
-    void muteToggled();
-    void noiseReductionChanged();
+    void muteToggled(bool muted);
+    void noiseReductionChanged(bool noiseReductionEnabled);
     void mutedByMixer();
     void inputReceived(const QByteArray& inputSamples);
     void inputLoudnessChanged(float loudness);