Blackberry: Refactor plugin directory structure

Move the mediaplayer related code in its own subdirectory.
This is a preparation for adding camera support in the future.

Change-Id: I880ff90e154165c2a3a31fd2b51e1dd224fea8fd
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>

src/plugins/blackberry/mediaplayer/bbmetadata.cpp

@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "bbmetadata.h"
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qfile.h>
+#include <QtCore/qstringlist.h>
+
+QT_BEGIN_NAMESPACE
+
+BbMetaData::BbMetaData()
+{
+    clear();
+}
+
+static const char * durationKey = "md_title_duration";
+static const char * widthKey = "md_video_width";
+static const char * heightKey = "md_video_height";
+static const char * mediaTypeKey = "md_title_mediatype";
+static const char * pixelWidthKey = "md_video_pixel_height";
+static const char * pixelHeightKey = "md_video_pixel_width";
+
+static const int mediaTypeAudioFlag = 4;
+static const int mediaTypeVideoFlag = 2;
+
+bool BbMetaData::parse(const QString &contextName)
+{
+    clear();
+    QString fileName =
+            QString("/pps/services/multimedia/renderer/context/%1/metadata").arg(contextName);
+
+    // In newer OS versions, the filename is "metadata0", not metadata, so try both.
+    if (!QFile::exists(fileName))
+        fileName += '0';
+
+    QFile metaDataFile(fileName);
+    if (!metaDataFile.open(QFile::ReadOnly)) {
+        qWarning() << "Unable to open media metadata file" << fileName << ":"
+                   << metaDataFile.errorString();
+        return false;
+    }
+
+    const QString separator("::");
+    QTextStream stream(&metaDataFile);
+    Q_FOREVER {
+        const QString line = stream.readLine();
+        if (line.isNull())
+            break;
+
+        const int separatorPos = line.indexOf(separator);
+        if (separatorPos != -1) {
+            const QString key = line.left(separatorPos);
+            const QString value = line.mid(separatorPos + separator.length());
+
+            if (key == durationKey)
+                m_duration = value.toLongLong();
+            else if (key == widthKey)
+                m_width = value.toInt();
+            else if (key == heightKey)
+                m_height = value.toInt();
+            else if (key == mediaTypeKey)
+                m_mediaType = value.toInt();
+            else if (key == pixelWidthKey)
+                m_pixelWidth = value.toFloat();
+            else if (key == pixelHeightKey)
+                m_pixelHeight = value.toFloat();
+        }
+    }
+
+    return true;
+}
+
+void BbMetaData::clear()
+{
+    m_duration = 0;
+    m_height = 0;
+    m_width = 0;
+    m_mediaType = -1;
+    m_pixelWidth = 1;
+    m_pixelHeight = 1;
+}
+
+qlonglong BbMetaData::duration() const
+{
+    return m_duration;
+}
+
+// Handling of pixel aspect ratio
+//
+// If the pixel aspect ratio is different from 1:1, it means the video needs to be stretched in
+// order to look natural.
+// For example, if the pixel width is 2, and the pixel height is 1, it means a video of 300x200
+// pixels needs to be displayed as 600x200 to look correct.
+// In order to support this the easiest way, we simply pretend that the actual size of the video
+// is 600x200, which will cause the video to be displayed in an aspect ratio of 3:1 instead of 3:2,
+// and therefore look correct.
+
+int BbMetaData::height() const
+{
+    return m_height * m_pixelHeight;
+}
+
+int BbMetaData::width() const
+{
+    return m_width * m_pixelWidth;
+}
+
+bool BbMetaData::hasVideo() const
+{
+    // By default, assume no video if we can't extract the information
+    if (m_mediaType == -1)
+        return false;
+
+    return (m_mediaType & mediaTypeVideoFlag);
+}
+
+bool BbMetaData::hasAudio() const
+{
+    // By default, assume audio only if we can't extract the information
+    if (m_mediaType == -1)
+        return true;
+
+    return (m_mediaType & mediaTypeAudioFlag);
+}
+
+QT_END_NAMESPACE