bbfccc7135
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I1c6faa4f59f8eca54f01ef20941fa60161dd7872 Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
262 lines
7.5 KiB
C++
262 lines
7.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Research In Motion
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mmrenderermetadata.h"
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#include <QtCore/qdebug.h>
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#include <QtCore/qfile.h>
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#include <QtCore/qstringlist.h>
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QT_BEGIN_NAMESPACE
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MmRendererMetaData::MmRendererMetaData()
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{
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clear();
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}
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static const char * titleKey = "md_title_name";
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static const char * artistKey = "md_title_artist";
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static const char * commentKey = "md_title_comment";
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static const char * genreKey = "md_title_genre";
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static const char * yearKey = "md_title_year";
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static const char * durationKey = "md_title_duration";
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static const char * bitRateKey = "md_title_bitrate";
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static const char * sampleKey = "md_title_samplerate";
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static const char * albumKey = "md_title_album";
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static const char * trackKey = "md_title_track";
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static const char * widthKey = "md_video_width";
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static const char * heightKey = "md_video_height";
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static const char * mediaTypeKey = "md_title_mediatype";
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static const char * pixelWidthKey = "md_video_pixel_width";
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static const char * pixelHeightKey = "md_video_pixel_height";
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static const char * seekableKey = "md_title_seekable";
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static const int mediaTypeAudioFlag = 4;
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static const int mediaTypeVideoFlag = 2;
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bool MmRendererMetaData::parse(const QString &contextName)
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{
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clear();
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QString fileName =
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QString("/pps/services/multimedia/renderer/context/%1/metadata").arg(contextName);
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// In newer OS versions, the filename is "metadata0", not metadata, so try both.
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if (!QFile::exists(fileName))
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fileName += '0';
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QFile metaDataFile(fileName);
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if (!metaDataFile.open(QFile::ReadOnly)) {
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qWarning() << "Unable to open media metadata file" << fileName << ":"
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<< metaDataFile.errorString();
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return false;
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}
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const QString separator("::");
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QTextStream stream(&metaDataFile);
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Q_FOREVER {
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const QString line = stream.readLine();
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if (line.isNull())
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break;
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const int separatorPos = line.indexOf(separator);
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if (separatorPos != -1) {
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const QStringRef key = line.leftRef(separatorPos);
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const QStringRef value = line.midRef(separatorPos + separator.length());
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if (key == durationKey)
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m_duration = value.toLongLong();
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else if (key == widthKey)
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m_width = value.toInt();
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else if (key == heightKey)
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m_height = value.toInt();
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else if (key == mediaTypeKey)
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m_mediaType = value.toInt();
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else if (key == pixelWidthKey)
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m_pixelWidth = value.toFloat();
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else if (key == pixelHeightKey)
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m_pixelHeight = value.toFloat();
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else if (key == titleKey)
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m_title = value.toString();
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else if (key == seekableKey)
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m_seekable = !(value == QLatin1String("0"));
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else if (key == artistKey)
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m_artist = value.toString();
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else if (key == commentKey)
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m_comment = value.toString();
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else if (key == genreKey)
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m_genre = value.toString();
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else if (key == yearKey)
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m_year = value.toInt();
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else if (key == bitRateKey)
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m_audioBitRate = value.toInt();
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else if (key == sampleKey)
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m_sampleRate = value.toInt();
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else if (key == albumKey)
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m_album = value.toString();
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else if (key == trackKey)
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m_track = value.toInt();
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}
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}
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return true;
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}
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void MmRendererMetaData::clear()
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{
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m_duration = 0;
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m_height = 0;
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m_width = 0;
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m_mediaType = -1;
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m_pixelWidth = 1;
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m_pixelHeight = 1;
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m_seekable = true;
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m_title.clear();
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m_artist.clear();
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m_comment.clear();
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m_genre.clear();
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m_year = 0;
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m_audioBitRate = 0;
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m_sampleRate = 0;
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m_album.clear();
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m_track = 0;
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}
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qlonglong MmRendererMetaData::duration() const
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{
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return m_duration;
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}
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// Handling of pixel aspect ratio
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//
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// If the pixel aspect ratio is different from 1:1, it means the video needs to be stretched in
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// order to look natural.
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// For example, if the pixel width is 2, and the pixel height is 1, it means a video of 300x200
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// pixels needs to be displayed as 600x200 to look correct.
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// In order to support this the easiest way, we simply pretend that the actual size of the video
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// is 600x200, which will cause the video to be displayed in an aspect ratio of 3:1 instead of 3:2,
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// and therefore look correct.
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int MmRendererMetaData::height() const
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{
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return m_height * m_pixelHeight;
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}
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int MmRendererMetaData::width() const
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{
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return m_width * m_pixelWidth;
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}
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bool MmRendererMetaData::hasVideo() const
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{
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// By default, assume no video if we can't extract the information
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if (m_mediaType == -1)
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return false;
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return (m_mediaType & mediaTypeVideoFlag);
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}
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bool MmRendererMetaData::hasAudio() const
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{
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// By default, assume audio only if we can't extract the information
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if (m_mediaType == -1)
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return true;
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return (m_mediaType & mediaTypeAudioFlag);
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}
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QString MmRendererMetaData::title() const
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{
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return m_title;
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}
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bool MmRendererMetaData::isSeekable() const
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{
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return m_seekable;
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}
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QString MmRendererMetaData::artist() const
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{
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return m_artist;
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}
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QString MmRendererMetaData::comment() const
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{
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return m_comment;
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}
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QString MmRendererMetaData::genre() const
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{
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return m_genre;
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}
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int MmRendererMetaData::year() const
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{
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return m_year;
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}
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QString MmRendererMetaData::mediaType() const
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{
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if (hasVideo())
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return QLatin1String("video");
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else if (hasAudio())
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return QLatin1String("audio");
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else
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return QString();
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}
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int MmRendererMetaData::audioBitRate() const
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{
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return m_audioBitRate;
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}
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int MmRendererMetaData::sampleRate() const
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{
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return m_sampleRate;
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}
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QString MmRendererMetaData::album() const
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{
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return m_album;
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}
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int MmRendererMetaData::track() const
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{
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return m_track;
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}
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QSize MmRendererMetaData::resolution() const
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{
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return QSize(width(), height());
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}
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QT_END_NAMESPACE
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