Add Bluetooth media control supportmarlin_12.93.0marlin/12.93.012.93.0

Rework to expose Bluetooth AVRCP media control in the Bluetooth
class, and use that support to implement a Bluetooth backend in the
Mediaplayer class.  This replaces the scheme that existed with the
agl-service-mediaplayer binding where it abstracted away the
Bluetooth support itself.  However, care has been take to make sure
that the exposed API to users of libqtappfw-mediaplayer has not
changed.

Bug-AGL: SPEC-4231

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I76b4f75621ce0121364eea3259b074bf3067ee88

1 files changed, 70 insertions, 0 deletions

diff --git a/mediaplayer/MediaplayerBluezBackend.h b/mediaplayer/MediaplayerBluezBackend.h
new file mode 100644
index 0000000..e37f35f
--- /dev/null
+++ b/mediaplayer/MediaplayerBluezBackend.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2022 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIAPLAYER_BLUEZ_BACKEND_H
+#define MEDIAPLAYER_BLUEZ_BACKEND_H
+
+#include <QObject>
+#include <QtQml/QQmlContext>
+#include <QThread>
+#include <QTimer>
+#include <QMutex>
+
+#include "MediaplayerBackend.h"
+#include "mediaplayer.h"
+#include "bluetooth.h"
+
+class MediaplayerBluezBackend : public MediaplayerBackend
+{
+	Q_OBJECT
+
+public:
+	explicit MediaplayerBluezBackend(Mediaplayer *player, QQmlContext *context, QObject * parent = Q_NULLPTR);
+	virtual ~MediaplayerBluezBackend();
+
+	void start();
+	void refresh_metadata();
+
+	void play();
+	void pause();
+	void previous();
+	void next();
+	void seek(int);
+	void fastforward(int);
+	void rewind(int);
+	void picktrack(int);
+	void volume(int);
+	void loop(QString);
+
+	// Bluetooth specific
+	void connect_media();
+	void disconnect_media();
+
+signals:
+	void metadataUpdate(QVariantMap metadata);
+
+private slots:
+	void updateMetadata(QVariantMap metadata);
+
+private:
+	Mediaplayer *m_player;
+	Bluetooth *m_bluetooth;
+
+        // Cached metadata to simplify refresh requests (e.g. on source switch)
+        QVariantMap m_cached_metadata;
+};
+
+#endif // MEDIAPLAYER_BLUEZ_BACKEND_H