qtmobility/src/multimedia/video/qabstractvideosurface.h
changeset 14 6fbed849b4f4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/multimedia/video/qabstractvideosurface.h	Wed Jun 23 19:08:38 2010 +0300
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QABSTRACTVIDEOSURFACE_H
+#define QABSTRACTVIDEOSURFACE_H
+
+#include <QtCore/qobject.h>
+#include <qvideoframe.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QRectF;
+class QVideoSurfaceFormat;
+
+class QAbstractVideoSurfacePrivate;
+
+class Q_MULTIMEDIA_EXPORT QAbstractVideoSurface : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum Error
+    {
+        NoError,
+        UnsupportedFormatError,
+        IncorrectFormatError,
+        StoppedError,
+        ResourceError
+    };
+
+    explicit QAbstractVideoSurface(QObject *parent = 0);
+    ~QAbstractVideoSurface();
+
+    virtual QList<QVideoFrame::PixelFormat> supportedPixelFormats(
+            QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const = 0;
+    virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const;
+    virtual QVideoSurfaceFormat nearestFormat(const QVideoSurfaceFormat &format) const;
+
+    QVideoSurfaceFormat surfaceFormat() const;
+
+    virtual bool start(const QVideoSurfaceFormat &format);
+    virtual void stop();
+
+    bool isActive() const;
+
+    virtual bool present(const QVideoFrame &frame) = 0;
+
+    Error error() const;
+
+Q_SIGNALS:
+    void activeChanged(bool active);
+    void surfaceFormatChanged(const QVideoSurfaceFormat &format);
+    void supportedFormatsChanged();
+
+protected:
+    QAbstractVideoSurface(QAbstractVideoSurfacePrivate &dd, QObject *parent);
+
+    void setError(Error error);
+
+private:
+    Q_DECLARE_PRIVATE(QAbstractVideoSurface)
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif