Rework mediaplayer support to use mpd

Rework the mediaplayer support to replace the stubbed out app
framework agl-service-mediaplayer binding use with driving mpd
(Media Player Daemon) via the libmpdclient library.  Local file
playback behavior should be equivalent to before in an image
with mpd present and suitably configured.  Bluetooth AVRCP
support is still stubbed out, and will be re-implemented with
followup changes.

Bug-AGL: SPEC-4182

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ifdf092b472c271460d0f5e9a8c7d2353904411b2

1 files changed, 55 insertions, 0 deletions

diff --git a/mediaplayer/MpdEventHandler.h b/mediaplayer/MpdEventHandler.h
new file mode 100644
index 0000000..fcd6155
--- /dev/null
+++ b/mediaplayer/MpdEventHandler.h
@@ -0,0 +1,55 @@
+/*
+ * 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 MPD_EVENT_HANDLER_H
+#define MPD_EVENT_HANDLER_H
+
+#include <QObject>
+//#include <QThread>
+//#include <QTimer>
+//#include <QMutex>
+#include <mpd/client.h>
+
+// Use a 60s timeout on our MPD connection
+#define MPD_CONNECTION_TIMEOUT	60000
+
+class MpdEventHandler : public QObject
+{
+	Q_OBJECT
+
+public:
+	explicit MpdEventHandler(QObject *parent = nullptr);
+	virtual ~MpdEventHandler();
+
+public slots:
+	void handleEvents(void);
+
+signals:
+	void playbackStateUpdate(int queue_pos, int song_pos_ms, bool state);
+        void playlistUpdate(QVariantMap playlist);
+        void metadataUpdate(QVariantMap metadata);
+
+private:
+	void handleDatabaseEvent(void);
+	void handleQueueEvent(void);
+	void handlePlayerEvent(void);
+
+	bool getSongArt(const QString &path, QByteArray &buffer, QString &type);
+
+	struct mpd_connection *m_mpd_conn;
+};
+
+#endif // MPD_EVENT_HANDLER_H