src/3rdparty/phonon/gstreamer/audiodataoutput.h
changeset 30 5dc02b23752f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/gstreamer/audiodataoutput.h	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,90 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2006 Matthias Kretz <kretz@kde.org>
+    Copyright (C) 2009 Martin Sandsmark <sandsmark@samfundet.no>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) version 3, or any
+    later version accepted by the membership of KDE e.V. (or its
+    successor approved by the membership of KDE e.V.), Nokia Corporation
+    (or its successors, if any) and the KDE Free Qt Foundation, which shall
+    act as a proxy defined in Section 6 of version 3 of the license.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef Phonon_GSTREAMER_AUDIODATAOUTPUT_H
+#define Phonon_GSTREAMER_AUDIODATAOUTPUT_H
+
+#include "abstractaudiooutput.h"
+#include "backend.h"
+#include "medianode.h"
+#include <phonon/audiodataoutput.h>
+#include <phonon/audiodataoutputinterface.h>
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace Gstreamer
+{
+    /**
+     * \author Martin Sandsmark <sandsmark@samfundet.no>
+     */
+    class AudioDataOutput : public QObject,
+                            public AudioDataOutputInterface,
+                            public MediaNode
+    {
+        Q_OBJECT
+        Q_INTERFACES(Phonon::AudioDataOutputInterface Phonon::Gstreamer::MediaNode)
+
+        public:
+            AudioDataOutput(Backend *, QObject *);
+            ~AudioDataOutput();
+
+        public Q_SLOTS:
+            int dataSize() const;
+            int sampleRate() const;
+            void setDataSize(int size);
+
+        public:
+            /// callback function for handling new audio data
+            static void processBuffer(GstPad*, GstBuffer*, gpointer);
+
+            Phonon::AudioDataOutput* frontendObject() const { return m_frontend; }
+            void setFrontendObject(Phonon::AudioDataOutput *frontend) { m_frontend = frontend; }
+
+            GstElement *audioElement() { return m_queue; }
+
+            void mediaNodeEvent(const MediaNodeEvent *event);
+
+
+        signals:
+            void dataReady(const QMap<Phonon::AudioDataOutput::Channel, QVector<qint16> > &data);
+            void dataReady(const QMap<Phonon::AudioDataOutput::Channel, QVector<float> > &data);
+            void endOfMedia(int remainingSamples);
+
+        private:
+            void convertAndEmit(const QVector<qint16>&, const QVector<qint16>&);
+
+            GstElement *m_queue;
+            int m_dataSize;
+            QVector<qint16> m_pendingData;
+            Phonon::AudioDataOutput *m_frontend;
+            int m_channels;
+    };
+}} //namespace Phonon::Gstreamer
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+// vim: sw=4 ts=4 tw=80
+#endif // Phonon_FAKE_AUDIODATAOUTPUT_H