1 files changed, 117 insertions, 0 deletions
diff --git a/src/multimedia/android/qandroidmediadevices.cpp b/src/multimedia/android/qandroidmediadevices.cpp
new file mode 100644
index 000000000..55533621c
--- /dev/null
+++ b/src/multimedia/android/qandroidmediadevices.cpp
@@ -0,0 +1,117 @@
+// 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 "qandroidmediadevices_p.h"
+#include "qmediadevices.h"
+#include "private/qcameradevice_p.h"
+
+#include "qandroidaudiosource_p.h"
+#include "qandroidaudiosink_p.h"
+#include "qandroidaudiodevice_p.h"
+#include "qopenslesengine_p.h"
+#include "private/qplatformmediaintegration_p.h"
+
+#include <qjnienvironment.h>
+#include <QJniObject>
+#include <QCoreApplication>
+
+QT_BEGIN_NAMESPACE
+
+Q_DECLARE_JNI_CLASS(QtAudioDeviceManager,
+                            "org/qtproject/qt/android/multimedia/QtAudioDeviceManager");
+
+
+QAndroidMediaDevices::QAndroidMediaDevices() : QPlatformMediaDevices()
+{
+   QtJniTypes::QtAudioDeviceManager::callStaticMethod<void>(
+                                      "registerAudioHeadsetStateReceiver",
+                                      QNativeInterface::QAndroidApplication::context());
+}
+
+QAndroidMediaDevices::~QAndroidMediaDevices()
+{
+   // Object of QAndroidMediaDevices type is static. Unregistering will happend only when closing
+   // the application. In such case it is probably not needed, but let's leave it for
+   // compatibility with Android documentation
+   QtJniTypes::QtAudioDeviceManager::callStaticMethod<void>(
+                                      "unregisterAudioHeadsetStateReceiver",
+                                      QNativeInterface::QAndroidApplication::context());
+}
+
+QList<QAudioDevice> QAndroidMediaDevices::audioInputs() const
+{
+    return QOpenSLESEngine::availableDevices(QAudioDevice::Input);
+}
+
+QList<QAudioDevice> QAndroidMediaDevices::audioOutputs() const
+{
+    return QOpenSLESEngine::availableDevices(QAudioDevice::Output);
+}
+
+QPlatformAudioSource *QAndroidMediaDevices::createAudioSource(const QAudioDevice &deviceInfo,
+                                                              QObject *parent)
+{
+    return new QAndroidAudioSource(deviceInfo.id(), parent);
+}
+
+QPlatformAudioSink *QAndroidMediaDevices::createAudioSink(const QAudioDevice &deviceInfo,
+                                                          QObject *parent)
+{
+    return new QAndroidAudioSink(deviceInfo.id(), parent);
+}
+
+void QAndroidMediaDevices::forwardAudioOutputsChanged()
+{
+    emit audioOutputsChanged();
+}
+
+void QAndroidMediaDevices::forwardAudioInputsChanged()
+{
+    emit audioInputsChanged();
+}
+
+static void onAudioInputDevicesUpdated(JNIEnv */*env*/, jobject /*thiz*/)
+{
+    static_cast<QAndroidMediaDevices*>(QPlatformMediaIntegration::instance()->mediaDevices())->forwardAudioInputsChanged();
+}
+
+static void onAudioOutputDevicesUpdated(JNIEnv */*env*/, jobject /*thiz*/)
+{
+    static_cast<QAndroidMediaDevices*>(QPlatformMediaIntegration::instance()->mediaDevices())->forwardAudioOutputsChanged();
+}
+
+Q_DECL_EXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void * /*reserved*/)
+{
+    static bool initialized = false;
+    if (initialized)
+        return JNI_VERSION_1_6;
+    initialized = true;
+
+    QT_USE_NAMESPACE
+    typedef union {
+        JNIEnv *nativeEnvironment;
+        void *venv;
+    } UnionJNIEnvToVoid;
+
+    UnionJNIEnvToVoid uenv;
+    uenv.venv = NULL;
+
+    if (vm->GetEnv(&uenv.venv, JNI_VERSION_1_6) != JNI_OK)
+        return JNI_ERR;
+
+    const JNINativeMethod methods[] = {
+        { "onAudioInputDevicesUpdated", "()V", (void *)onAudioInputDevicesUpdated },
+        { "onAudioOutputDevicesUpdated", "()V", (void *)onAudioOutputDevicesUpdated }
+    };
+
+    bool registered = QJniEnvironment().registerNativeMethods(
+            "org/qtproject/qt/android/multimedia/QtAudioDeviceManager", methods,
+            std::size(methods));
+
+    if (!registered)
+        return JNI_ERR;
+
+    return JNI_VERSION_1_6;
+}
+
+QT_END_NAMESPACE