Initial implementation (deadlocks still occurring in Audio.cpp)

interface/resources/qml/hifi/audio/Audio.qml

@@ -148,6 +148,25 @@ Rectangle {
                         checked = Qt.binding(function() { return AudioScriptingInterface.noiseReduction; }); // restore binding
                     }
                 }
+                AudioControls.CheckBox {
+                    spacing: muteMic.spacing
+                    text: qsTr("Push To Talk");
+                    checked: isVR ? AudioScriptingInterface.pushToTalkHMD : AudioScriptingInterface.pushToTalkDesktop;
+                    onClicked: {
+                        if (isVR) {
+                            AudioScriptingInterface.pushToTalkHMD = checked;
+                        } else {
+                            AudioScriptingInterface.pushToTalkDesktop = checked;
+                        }
+                        checked = Qt.binding(function() {
+                            if (isVR) {
+                                return AudioScriptingInterface.pushToTalkHMD;
+                            } else {
+                                return AudioScriptingInterface.pushToTalkDesktop;
+                            }
+                        }); // restore binding
+                    }
+                }
                 AudioControls.CheckBox {
                     spacing: muteMic.spacing
                     text: qsTr("Show audio level meter");

interface/resources/qml/hifi/audio/MicBar.qml

@@ -11,10 +11,13 @@
 
 import QtQuick 2.5
 import QtGraphicalEffects 1.0
+import stylesUit 1.0
 
 import TabletScriptingInterface 1.0
 
 Rectangle {
+    HifiConstants { id: hifi; }
+
     readonly property var level: AudioScriptingInterface.inputLevel;
     
     property bool gated: false;
@@ -131,9 +134,9 @@ Rectangle {
     Item {
         id: status;
 
-        readonly property string color: AudioScriptingInterface.muted ? colors.muted : colors.unmuted;
+        readonly property string color: (AudioScriptingInterface.pushingToTalk && AudioScriptingInterface.muted) ? hifi.colors.blueHighlight : AudioScriptingInterface.muted ? colors.muted : colors.unmuted;
 
-        visible: AudioScriptingInterface.muted;
+        visible: AudioScriptingInterface.pushingToTalk || AudioScriptingInterface.muted;
 
         anchors {
             left: parent.left;
@@ -152,7 +155,7 @@ Rectangle {
 
             color: parent.color;
 
-            text: AudioScriptingInterface.muted ? "MUTED" : "MUTE";
+            text: AudioScriptingInterface.pushToTalk ? (AudioScriptingInterface.pushingToTalk ? "SPEAKING" : "PUSH TO TALK") : (AudioScriptingInterface.muted ? "MUTED" : "MUTE");
             font.pointSize: 12;
         }
 

interface/src/Application.cpp

@@ -1431,6 +1431,8 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
         });
         connect(this, &Application::activeDisplayPluginChanged,
             reinterpret_cast<scripting::Audio*>(audioScriptingInterface.data()), &scripting::Audio::onContextChanged);
+        connect(this, &Application::pushedToTalk,
+            reinterpret_cast<scripting::Audio*>(audioScriptingInterface.data()), &scripting::Audio::handlePushedToTalk);
     }
 
     // Create the rendering engine.  This can be slow on some machines due to lots of
@@ -4195,6 +4197,10 @@ void Application::keyPressEvent(QKeyEvent* event) {
                 }
                 break;
 
+            case Qt::Key_T:
+                emit pushedToTalk(true);
+                break;
+
             case Qt::Key_P: {
                 if (!isShifted && !isMeta && !isOption && !event->isAutoRepeat()) {
                     AudioInjectorOptions options;
@@ -4300,6 +4306,12 @@ void Application::keyReleaseEvent(QKeyEvent* event) {
     if (_keyboardMouseDevice->isActive()) {
         _keyboardMouseDevice->keyReleaseEvent(event);
     }
+
+    switch (event->key()) {
+    case Qt::Key_T:
+        emit pushedToTalk(false);
+        break;
+    }
 }
 
 void Application::focusOutEvent(QFocusEvent* event) {
@@ -5243,6 +5255,9 @@ void Application::loadSettings() {
         }
     }
 
+    auto audioScriptingInterface = reinterpret_cast<scripting::Audio*>(DependencyManager::get<AudioScriptingInterface>().data());
+    audioScriptingInterface->loadData();
+
     getMyAvatar()->loadData();
     _settingsLoaded = true;
 }
@@ -5252,6 +5267,9 @@ void Application::saveSettings() const {
     DependencyManager::get<AudioClient>()->saveSettings();
     DependencyManager::get<LODManager>()->saveSettings();
 
+    auto audioScriptingInterface = reinterpret_cast<scripting::Audio*>(DependencyManager::get<AudioScriptingInterface>().data());
+    audioScriptingInterface->saveData();
+
     Menu::getInstance()->saveSettings();
     getMyAvatar()->saveData();
     PluginManager::getInstance()->saveSettings();

interface/src/Application.h

@@ -358,6 +358,8 @@ signals:
 
     void miniTabletEnabledChanged(bool enabled);
 
+    void pushedToTalk(bool enabled);
+
 public slots:
     QVector<EntityItemID> pasteEntities(float x, float y, float z);
     bool exportEntities(const QString& filename, const QVector<QUuid>& entityIDs, const glm::vec3* givenOffset = nullptr);

interface/src/scripting/Audio.cpp

@@ -63,26 +63,163 @@ void Audio::stopRecording() {
 }
 
 bool Audio::isMuted() const {
-    return resultWithReadLock<bool>([&] {
-        return _isMuted;
-    });
+    bool isHMD = qApp->isHMDMode();
+    if (isHMD) {
+        return getMutedHMD();
+    }
+    else {
+        return getMutedDesktop();
+    }
 }
 
 void Audio::setMuted(bool isMuted) {
+    withWriteLock([&] {
+        bool isHMD = qApp->isHMDMode();
+        if (isHMD) {
+            setMutedHMD(isMuted);
+        }
+        else {
+            setMutedDesktop(isMuted);
+        }
+    });
+}
+
+void Audio::setMutedDesktop(bool isMuted) {
+    bool changed = false;
+    if (_desktopMuted != isMuted) {
+        changed = true;
+        _desktopMuted = isMuted;
+        auto client = DependencyManager::get<AudioClient>().data();
+        QMetaObject::invokeMethod(client, "setMuted", Q_ARG(bool, isMuted), Q_ARG(bool, false));
+    }
+    if (changed) {
+        emit mutedChanged(isMuted);
+        emit desktopMutedChanged(isMuted);
+    }
+}
+
+bool Audio::getMutedDesktop() const {
+    return resultWithReadLock<bool>([&] {
+        return _desktopMuted;
+    });
+}
+
+void Audio::setMutedHMD(bool isMuted) {
+    bool changed = false;
+    if (_hmdMuted != isMuted) {
+        changed = true;
+        _hmdMuted = isMuted;
+        auto client = DependencyManager::get<AudioClient>().data();
+        QMetaObject::invokeMethod(client, "setMuted", Q_ARG(bool, isMuted), Q_ARG(bool, false));
+    }
+    if (changed) {
+        emit mutedChanged(isMuted);
+        emit hmdMutedChanged(isMuted);
+    }
+}
+
+bool Audio::getMutedHMD() const {
+    return resultWithReadLock<bool>([&] {
+        return _hmdMuted;
+    });
+}
+
+bool Audio::getPTT() {
+    bool isHMD = qApp->isHMDMode();
+    if (isHMD) {
+        return getPTTHMD();
+    }
+    else {
+        return getPTTDesktop();
+    }
+}
+
+bool Audio::getPushingToTalk() const {
+    return resultWithReadLock<bool>([&] {
+        return _pushingToTalk;
+    });
+}
+
+void Audio::setPTT(bool enabled) {
+    bool isHMD = qApp->isHMDMode();
+    if (isHMD) {
+        setPTTHMD(enabled);
+    }
+    else {
+        setPTTDesktop(enabled);
+    }
+}
+
+void Audio::setPTTDesktop(bool enabled) {
     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));
+        if (_pttDesktop != enabled) {
             changed = true;
+            _pttDesktop = enabled;
+            if (!enabled) {
+                // Set to default behavior (unmuted for Desktop) on Push-To-Talk disable.
+                setMutedDesktop(true);
+            }
+            else {
+                // Should be muted when not pushing to talk while PTT is enabled.
+                setMutedDesktop(true);
+            }
         }
     });
     if (changed) {
-        emit mutedChanged(isMuted);
+        emit pushToTalkChanged(enabled);
+        emit pushToTalkDesktopChanged(enabled);
     }
 }
 
+bool Audio::getPTTDesktop() const {
+    return resultWithReadLock<bool>([&] {
+        return _pttDesktop;
+    });
+}
+
+void Audio::setPTTHMD(bool enabled) {
+    bool changed = false;
+    withWriteLock([&] {
+        if (_pttHMD != enabled) {
+            changed = true;
+            _pttHMD = enabled;
+            if (!enabled) {
+                // Set to default behavior (unmuted for HMD) on Push-To-Talk disable.
+                setMutedHMD(false);
+            }
+            else {
+                // Should be muted when not pushing to talk while PTT is enabled.
+                setMutedHMD(true);
+            }
+        }
+    });
+    if (changed) {
+        emit pushToTalkChanged(enabled);
+        emit pushToTalkHMDChanged(enabled);
+    }
+}
+
+bool Audio::getPTTHMD() const {
+    return resultWithReadLock<bool>([&] {
+        return _pttHMD;
+    });
+}
+
+void Audio::saveData() {
+    _desktopMutedSetting.set(getMutedDesktop());
+    _hmdMutedSetting.set(getMutedHMD());
+    _pttDesktopSetting.set(getPTTDesktop());
+    _pttHMDSetting.set(getPTTHMD());
+}
+
+void Audio::loadData() {
+    _desktopMuted = _desktopMutedSetting.get();
+    _hmdMuted = _hmdMutedSetting.get();
+    _pttDesktop = _pttDesktopSetting.get();
+    _pttHMD = _pttHMDSetting.get();
+}
+
 bool Audio::noiseReductionEnabled() const {
     return resultWithReadLock<bool>([&] {
         return _enableNoiseReduction;
@@ -179,11 +316,32 @@ void Audio::onContextChanged() {
             changed = true;
         }
     });
+    if (isHMD) {
+        setMuted(getMutedHMD());
+    }
+    else {
+        setMuted(getMutedDesktop());
+    }
     if (changed) {
         emit contextChanged(isHMD ? Audio::HMD : Audio::DESKTOP);
     }
 }
 
+void Audio::handlePushedToTalk(bool enabled) {
+    if (getPTT()) {
+        if (enabled) {
+            setMuted(false);
+        }
+        else {
+            setMuted(true);
+        }
+        if (_pushingToTalk != enabled) {
+            _pushingToTalk = enabled;
+            emit pushingToTalkChanged(enabled);
+        }
+    }
+}
+
 void Audio::setReverb(bool enable) {
     withWriteLock([&] {
         DependencyManager::get<AudioClient>()->setReverb(enable);

interface/src/scripting/Audio.h

@@ -12,6 +12,7 @@
 #ifndef hifi_scripting_Audio_h
 #define hifi_scripting_Audio_h
 
+#include <functional>
 #include "AudioScriptingInterface.h"
 #include "AudioDevices.h"
 #include "AudioEffectOptions.h"
@@ -19,6 +20,9 @@
 #include "AudioFileWav.h"
 #include <shared/ReadWriteLockable.h>
 
+using MutedGetter = std::function<bool()>;
+using MutedSetter = std::function<void(bool)>;
+
 namespace scripting {
 
 class Audio : public AudioScriptingInterface, protected ReadWriteLockable {
@@ -63,6 +67,12 @@ class Audio : public AudioScriptingInterface, protected ReadWriteLockable {
     Q_PROPERTY(bool clipping READ isClipping NOTIFY clippingChanged)
     Q_PROPERTY(QString context READ getContext NOTIFY contextChanged)
     Q_PROPERTY(AudioDevices* devices READ getDevices NOTIFY nop)
+    Q_PROPERTY(bool desktopMuted READ getMutedDesktop WRITE setMutedDesktop NOTIFY desktopMutedChanged)
+    Q_PROPERTY(bool hmdMuted READ getMutedHMD WRITE setMutedHMD NOTIFY hmdMutedChanged)
+    Q_PROPERTY(bool pushToTalk READ getPTT WRITE setPTT NOTIFY pushToTalkChanged);
+    Q_PROPERTY(bool pushToTalkDesktop READ getPTTDesktop WRITE setPTTDesktop NOTIFY pushToTalkDesktopChanged)
+    Q_PROPERTY(bool pushToTalkHMD READ getPTTHMD WRITE setPTTHMD NOTIFY pushToTalkHMDChanged)
+    Q_PROPERTY(bool pushingToTalk READ getPushingToTalk NOTIFY pushingToTalkChanged)
 
 public:
     static QString AUDIO;
@@ -82,6 +92,25 @@ public:
 
     void showMicMeter(bool show);
 
+    // Mute setting setters and getters
+    void setMutedDesktop(bool isMuted);
+    bool getMutedDesktop() const;
+    void setMutedHMD(bool isMuted);
+    bool getMutedHMD() const;
+    void setPTT(bool enabled);
+    bool getPTT();
+    bool getPushingToTalk() const;
+
+    // Push-To-Talk setters and getters
+    void setPTTDesktop(bool enabled);
+    bool getPTTDesktop() const;
+    void setPTTHMD(bool enabled);
+    bool getPTTHMD() const;
+
+    // Settings handlers
+    void saveData();
+    void loadData();
+
     /**jsdoc
      * @function Audio.setInputDevice
      * @param {object} device
@@ -193,6 +222,46 @@ signals:
      */
     void mutedChanged(bool isMuted);
     
+    /**jsdoc
+    * Triggered when desktop audio input is muted or unmuted.
+    * @function Audio.desktopMutedChanged
+    * @param {boolean} isMuted - <code>true</code> if the audio input is muted for desktop mode, otherwise <code>false</code>.
+    * @returns {Signal}
+    */
+    void desktopMutedChanged(bool isMuted);
+
+    /**jsdoc
+    * Triggered when HMD audio input is muted or unmuted.
+    * @function Audio.hmdMutedChanged
+    * @param {boolean} isMuted - <code>true</code> if the audio input is muted for HMD mode, otherwise <code>false</code>.
+    * @returns {Signal}
+    */
+    void hmdMutedChanged(bool isMuted);
+
+    /**
+    * Triggered when Push-to-Talk has been enabled or disabled.
+    * @function Audio.pushToTalkChanged
+    * @param {boolean} enabled - <code>true</code> if Push-to-Talk is enabled, otherwise <code>false</code>.
+    * @returns {Signal}
+    */
+    void pushToTalkChanged(bool enabled);
+
+    /**
+    * Triggered when Push-to-Talk has been enabled or disabled for desktop mode.
+    * @function Audio.pushToTalkDesktopChanged
+    * @param {boolean} enabled - <code>true</code> if Push-to-Talk is emabled for Desktop mode, otherwise <code>false</code>.
+    * @returns {Signal}
+    */
+    void pushToTalkDesktopChanged(bool enabled);
+
+    /**
+    * Triggered when Push-to-Talk has been enabled or disabled for HMD mode.
+    * @function Audio.pushToTalkHMDChanged
+    * @param {boolean} enabled - <code>true</code> if Push-to-Talk is emabled for HMD mode, otherwise <code>false</code>.
+    * @returns {Signal}
+    */
+    void pushToTalkHMDChanged(bool enabled);
+
     /**jsdoc
      * Triggered when the audio input noise reduction is enabled or disabled.
      * @function Audio.noiseReductionChanged
@@ -237,6 +306,14 @@ signals:
      */
     void contextChanged(const QString& context);
 
+    /**jsdoc
+    * Triggered when pushing to talk.
+    * @function Audio.pushingToTalkChanged
+    * @param {boolean} talking - <code>true</code> if broadcasting with PTT, <code>false</code> otherwise.
+    * @returns {Signal}
+    */
+    void pushingToTalkChanged(bool talking);
+
 public slots:
 
     /**jsdoc
@@ -245,6 +322,8 @@ public slots:
      */
     void onContextChanged();
 
+    void handlePushedToTalk(bool enabled);
+
 private slots:
     void setMuted(bool muted);
     void enableNoiseReduction(bool enable);
@@ -260,11 +339,19 @@ private:
     float _inputVolume { 1.0f };
     float _inputLevel { 0.0f };
     bool _isClipping { false };
-    bool _isMuted { false };
     bool _enableNoiseReduction { true };  // Match default value of AudioClient::_isNoiseGateEnabled.
     bool _contextIsHMD { false };
     AudioDevices* getDevices() { return &_devices; }
     AudioDevices _devices;
+    Setting::Handle<bool> _desktopMutedSetting{ QStringList { Audio::AUDIO, "desktopMuted" }, true };
+    Setting::Handle<bool> _hmdMutedSetting{ QStringList { Audio::AUDIO, "hmdMuted" }, true };
+    Setting::Handle<bool> _pttDesktopSetting{ QStringList { Audio::AUDIO, "pushToTalkDesktop" }, false };
+    Setting::Handle<bool> _pttHMDSetting{ QStringList { Audio::AUDIO, "pushToTalkHMD" }, false };
+    bool _desktopMuted{ true };
+    bool _hmdMuted{ false };
+    bool _pttDesktop{ false };
+    bool _pttHMD{ false };
+    bool _pushingToTalk{ false };
 };
 
 };

scripts/system/audio.js

@@ -28,6 +28,9 @@ var UNMUTE_ICONS = {
 };
 
 function onMuteToggled() {
+    if (Audio.pushingToTalk) {
+        return;
+    }
     if (Audio.muted) {
         button.editProperties(MUTE_ICONS);
     } else {