1 /*  This file is part of the KDE project.

     2 

     3 Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 

     5 This library is free software: you can redistribute it and/or modify

     6 it under the terms of the GNU Lesser General Public License as published by

     7 the Free Software Foundation, either version 2.1 or 3 of the License.

     8 

     9 This library is distributed in the hope that it will be useful,

    10 but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 GNU Lesser General Public License for more details.

    13 

    14 You should have received a copy of the GNU Lesser General Public License

    15 along with this library.  If not, see <http://www.gnu.org/licenses/>.

    16 */

    17 

    18 #ifndef PHONON_BACKEND_H

    19 #define PHONON_BACKEND_H

    20 

    21 #include "phononds9_namespace.h"

    22 #include <phonon/backendinterface.h>

    23 #include <phonon/phononnamespace.h>

    24 

    25 #include <QtCore/QList>

    26 #include <QtCore/QMutex>

    27 

    28 #include "compointer.h"

    29 #include "backendnode.h"

    30 

    31 QT_BEGIN_NAMESPACE

    32 

    33 namespace Phonon

    34 {

    35     namespace DS9

    36     {

    37         class AudioOutput;

    38         class MediaObject;

    39 

    40         typedef Phonon::ObjectDescriptionType ObjectDescriptionType;

    41 

    42         class Backend : public QObject, public Phonon::BackendInterface

    43         {

    44             Q_OBJECT

    45                 Q_INTERFACES(Phonon::BackendInterface)

    46         public:

    47             Backend(QObject *parent = 0, const QVariantList & = QVariantList());

    48             virtual ~Backend();

    49 

    50             QObject *createObject(Phonon::BackendInterface::Class, QObject *parent, const QList<QVariant> &args);

    51 

    52             bool supportsVideo() const;

    53             QStringList availableMimeTypes() const;

    54 

    55             QList<int> objectDescriptionIndexes(Phonon::ObjectDescriptionType type) const;

    56             QHash<QByteArray, QVariant> objectDescriptionProperties(Phonon::ObjectDescriptionType type, int index) const;

    57 

    58             bool connectNodes(QObject *, QObject *);

    59             bool disconnectNodes(QObject *, QObject *);

    60 

    61             //transaction management

    62             bool startConnectionChange(QSet<QObject *>);

    63             bool endConnectionChange(QSet<QObject *>);

    64 

    65             Filter getAudioOutputFilter(int index) const;

    66 

    67             static QMutex *directShowMutex();

    68 

    69         Q_SIGNALS:

    70             void objectDescriptionChanged(ObjectDescriptionType);

    71 

    72         private:

    73             class AudioMoniker : public ComPointer<IMoniker>

    74             {

    75             public:

    76                 bool operator==(const AudioMoniker &other);

    77             };

    78             mutable QVector<AudioMoniker> m_audioOutputs;

    79             mutable QVector<CLSID> m_audioEffects;

    80             mutable QMutex m_directShowMutex;

    81         };

    82     }

    83 }

    84 

    85 QT_END_NAMESPACE

    86 

    87 #endif // PHONON_BACKEND_H