src/3rdparty/phonon/gstreamer/mediaobject.h
changeset 0 1918ee327afb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/gstreamer/mediaobject.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,294 @@
+/*  This file is part of the KDE project.
+
+    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+    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 or 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_MEDIAOBJECT_H
+#define Phonon_GSTREAMER_MEDIAOBJECT_H
+
+#include "backend.h"
+#include "common.h"
+#include "medianode.h"
+#include <phonon/mediaobjectinterface.h>
+#include <phonon/addoninterface.h>
+
+#include <QtCore/QHash>
+#include <QtCore/QString>
+#include <QtCore/QVariant>
+#include <QtCore/QObject>
+#include <QtCore/QDate>
+#include <QtCore/QEvent>
+#include <QtCore/QUrl>
+#include <gst/gst.h>
+
+QT_BEGIN_NAMESPACE
+
+class QTimer;
+typedef QMultiMap<QString, QString> TagMap;
+
+namespace Phonon
+{
+namespace Gstreamer
+{
+
+class VideoWidget;
+class AudioPath;
+class VideoPath;
+class AudioOutput;
+
+class MediaObject : public QObject, public MediaObjectInterface
+#ifndef QT_NO_PHONON_MEDIACONTROLLER
+        , public AddonInterface
+#endif
+        , public MediaNode
+{
+    friend class Stream;
+    Q_OBJECT
+    Q_INTERFACES(Phonon::MediaObjectInterface
+#ifndef QT_NO_PHONON_MEDIACONTROLLER
+                 Phonon::AddonInterface
+#endif
+                 Phonon::Gstreamer::MediaNode
+    )
+
+public:
+
+    MediaObject(Backend *backend, QObject *parent);
+    ~MediaObject();
+    Phonon::State state() const;
+
+    bool hasVideo() const;
+    bool isSeekable() const;
+
+    qint64 currentTime() const;
+    qint32 tickInterval() const;
+
+    void setTickInterval(qint32 newTickInterval);
+
+    void play();
+    void pause();
+    void stop();
+    void seek(qint64 time);
+
+    QString errorString() const;
+    Phonon::ErrorType errorType() const;
+
+    QUrl url() const;
+    qint64 totalTime() const;
+
+    qint32 prefinishMark() const;
+    void setPrefinishMark(qint32 newPrefinishMark);
+
+    qint32 transitionTime() const;
+    void setTransitionTime(qint32);
+    qint64 remainingTime() const;
+
+    void setSource(const MediaSource &source);
+    void setNextSource(const MediaSource &source);
+    MediaSource source() const;
+
+    // No additional interfaces currently supported
+#ifndef QT_NO_PHONON_MEDIACONTROLLER
+    bool hasInterface(Interface) const;
+    QVariant interfaceCall(Interface, int, const QList<QVariant> &);
+#endif
+    bool isLoading()
+    {
+        return m_loading;
+    }
+
+    bool audioAvailable()
+    {
+        return m_hasAudio;
+    }
+
+    bool videoAvailable()
+    {
+        return m_hasVideo;
+    }
+
+    GstElement *audioGraph()
+    {
+        return m_audioGraph;
+    }
+
+    GstElement *videoGraph()
+    {
+        return m_videoGraph;
+    }
+
+    GstElement *pipeline()
+    {
+        return m_pipeline;
+    };
+
+    gulong capsHandler()
+    {
+        return m_capsHandler;
+    };
+
+    void connectVideo(GstPad *videoPad);
+    void connectAudio(GstPad *audioPad);
+    void handleBusMessage(const Message &msg);
+    void handleEndOfStream();
+    void addMissingCodecName(const QString &codec) { m_missingCodecs.append(codec); }
+    void invalidateGraph() {
+        m_resetNeeded = true;
+        if (m_state == Phonon::PlayingState || m_state == Phonon::PausedState) {
+            changeState(Phonon::StoppedState);
+        }
+    }
+    static void cb_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data);
+    static void cb_pad_added (GstElement *decodebin, GstPad *pad, gpointer data);
+    static void cb_unknown_type (GstElement *decodebin, GstPad *pad, GstCaps *caps, gpointer data);
+    static void cb_no_more_pads (GstElement * decodebin, gpointer data);
+    void saveState();
+    void resumeState();
+
+public Q_SLOTS:
+    void setState(State);
+    
+Q_SIGNALS:
+    void currentSourceChanged(const MediaSource &newSource);
+    void stateChanged(Phonon::State newstate, Phonon::State oldstate);
+    void tick(qint64 time);
+    void metaDataChanged(QMultiMap<QString, QString>);
+    void seekableChanged(bool);
+    void hasVideoChanged(bool);
+
+    void finished();
+    void prefinishMarkReached(qint32);
+    void aboutToFinish();
+    void totalTimeChanged(qint64 length);
+    void bufferStatus(int percentFilled);
+
+    QMultiMap<QString, QString> metaData();
+    void setMetaData(QMultiMap<QString, QString> newData);
+
+    // AddonInterface:
+    void titleChanged(int);
+    void availableTitlesChanged(int);
+
+    // Not implemented
+    void chapterChanged(int);
+    void availableChaptersChanged(int);
+    void angleChanged(int);
+    void availableAnglesChanged(int);
+
+    void availableSubtitlesChanged();
+    void availableAudioChannelsChanged();
+
+protected:
+    void beginLoad();
+    void loadingComplete();
+    void newPadAvailable (GstPad *pad);
+    void changeState(State);
+    void setError(const QString &errorString, Phonon::ErrorType error = NormalError);
+    /*
+     * @param encodedUrl percent-encoded QString for source compat reasons.  Should change to QUrl
+     */
+    bool createPipefromURL(const QUrl &url);
+    bool createPipefromStream(const MediaSource &);
+
+private Q_SLOTS:
+    void noMorePadsAvailable();    
+    void getStreamInfo();
+    void emitTick();
+    void beginPlay();
+    void setVideoCaps(GstCaps *caps);
+    void notifyStateChange(Phonon::State newstate, Phonon::State oldstate);
+protected:
+    GstElement *audioElement()
+    {
+        Q_ASSERT(m_audioPipe);
+        return m_audioPipe;
+    }
+
+    GstElement *videoElement()
+    {
+        Q_ASSERT(m_videoPipe);
+        return m_videoPipe;
+    }
+
+private:
+
+    // GStreamer specific :
+    void createPipeline();
+    bool addToPipeline(GstElement *elem);
+    void setTotalTime(qint64 newTime);
+    void getStreamsInfo();
+    bool updateTotalTime();
+    void updateSeekable();
+    qint64 getPipelinePos() const;
+
+    int _iface_availableTitles() const;
+    int _iface_currentTitle() const;
+    void _iface_setCurrentTitle(int title);
+
+    bool m_resumeState;
+    State m_oldState;
+    quint64 m_oldPos;
+
+    State m_state;
+    State m_pendingState;
+    QTimer *m_tickTimer;
+    qint32 m_tickInterval;
+
+    MediaSource m_source;
+    MediaSource m_nextSource;
+    qint32 m_prefinishMark;
+    qint32 m_transitionTime;
+
+    qint64 m_posAtSeek;
+
+    bool m_prefinishMarkReachedNotEmitted;
+    bool m_aboutToFinishEmitted;
+    bool m_loading;
+    gulong m_capsHandler;
+
+    GstElement *m_datasource;
+    GstElement *m_decodebin;
+
+    GstElement *m_audioPipe;
+    GstElement *m_videoPipe;
+
+    qint64 m_totalTime;
+    int m_bufferPercent;
+    bool m_hasVideo;
+    bool m_videoStreamFound;
+    bool m_hasAudio;
+    bool m_seekable;
+    bool m_atEndOfStream;
+    bool m_atStartOfStream;
+    Phonon::ErrorType m_error;
+    QString m_errorString;
+
+    GstElement *m_pipeline;
+    GstElement *m_audioGraph;
+    GstElement *m_videoGraph;
+    int m_previousTickTime;
+    bool m_resetNeeded;
+    QStringList m_missingCodecs;
+    QMultiMap<QString, QString> m_metaData;
+    bool m_autoplayTitles;
+    int m_availableTitles;
+    int m_currentTitle;
+};
+}
+} //namespace Phonon::Gstreamer
+
+QT_END_NAMESPACE
+
+#endif // Phonon_GSTREAMER_MEDIAOBJECT_H