plugins/multimedia/gstreamer/qgstvideobuffer.cpp
changeset 0 876b1a06bc25
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/multimedia/gstreamer/qgstvideobuffer.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgstvideobuffer.h"
+
+
+QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine)
+    : QAbstractVideoBuffer(NoHandle)
+    , m_buffer(buffer)
+    , m_bytesPerLine(bytesPerLine)
+    , m_mode(NotMapped)
+{
+    gst_buffer_ref(m_buffer);
+}
+
+QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine,
+                QGstVideoBuffer::HandleType handleType,
+                const QVariant &handle)
+    : QAbstractVideoBuffer(handleType)
+    , m_buffer(buffer)
+    , m_bytesPerLine(bytesPerLine)
+    , m_mode(NotMapped)
+    , m_handle(handle)
+{
+    gst_buffer_ref(m_buffer);
+}
+
+QGstVideoBuffer::~QGstVideoBuffer()
+{
+    gst_buffer_unref(m_buffer);
+}
+
+
+QAbstractVideoBuffer::MapMode QGstVideoBuffer::mapMode() const
+{
+    return m_mode;
+}
+
+uchar *QGstVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
+{
+    if (mode != NotMapped && m_mode == NotMapped) {
+        if (numBytes)
+            *numBytes = m_buffer->size;
+
+        if (bytesPerLine)
+            *bytesPerLine = m_bytesPerLine;
+
+        m_mode = mode;
+
+        return m_buffer->data;
+    } else {
+        return 0;
+    }
+}
+void QGstVideoBuffer::unmap()
+{
+    m_mode = NotMapped;
+}
+