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Diffstat (limited to 'src/plugins/avfoundation/mediaplayer/avfmediaplayermetadatacontrol.mm')
| -rw-r--r-- | src/plugins/avfoundation/mediaplayer/avfmediaplayermetadatacontrol.mm | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/plugins/avfoundation/mediaplayer/avfmediaplayermetadatacontrol.mm b/src/plugins/avfoundation/mediaplayer/avfmediaplayermetadatacontrol.mm new file mode 100644 index 000000000..84a6bef98 --- /dev/null +++ b/src/plugins/avfoundation/mediaplayer/avfmediaplayermetadatacontrol.mm @@ -0,0 +1,157 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** 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 "avfmediaplayermetadatacontrol.h" +#include "avfmediaplayersession.h" + +#include <QtMultimedia/qtmedianamespace.h> + +#import <AVFoundation/AVFoundation.h> + +QT_USE_NAMESPACE + +AVFMediaPlayerMetaDataControl::AVFMediaPlayerMetaDataControl(AVFMediaPlayerSession *session, QObject *parent) + : QMetaDataReaderControl(parent) + , m_session(session) + , m_asset(0) +{ + QObject::connect(m_session, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)), this, SLOT(updateTags())); +} + +AVFMediaPlayerMetaDataControl::~AVFMediaPlayerMetaDataControl() +{ +#ifdef QT_DEBUG_AVF + qDebug() << Q_FUNC_INFO; +#endif +} + +bool AVFMediaPlayerMetaDataControl::isMetaDataAvailable() const +{ + return !m_tags.isEmpty(); +} + +bool AVFMediaPlayerMetaDataControl::isWritable() const +{ + return false; +} + +QVariant AVFMediaPlayerMetaDataControl::metaData(const QString &key) const +{ + return m_tags.value(key); +} + +QStringList AVFMediaPlayerMetaDataControl::availableMetaData() const +{ + return m_tags.keys(); +} + +void AVFMediaPlayerMetaDataControl::updateTags() +{ +#ifdef QT_DEBUG_AVF + qDebug() << Q_FUNC_INFO; +#endif + AVAsset *currentAsset = (AVAsset*)m_session->currentAssetHandle(); + + //Don't read the tags from the same asset more than once + if (currentAsset == m_asset) { + return; + } + + m_asset = currentAsset; + + //Since we've changed assets, clear old tags + m_tags.clear(); + + NSArray *metadataFormats = [currentAsset availableMetadataFormats]; + for ( NSString *format in metadataFormats) { +#ifdef QT_DEBUG_AVF + qDebug() << "format: " << [format UTF8String]; +#endif + NSArray *metadataItems = [currentAsset metadataForFormat:format]; + for (AVMetadataItem* item in metadataItems) { + NSString *keyString = [item commonKey]; + NSString *value = [item stringValue]; + + if (keyString.length != 0) { + //Process "commonMetadata" tags here: + if ([keyString isEqualToString:AVMetadataCommonKeyTitle]) { + m_tags.insert(QtMultimedia::MetaData::Title, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyCreator]) { + m_tags.insert(QtMultimedia::MetaData::Author, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeySubject]) { + m_tags.insert(QtMultimedia::MetaData::SubTitle, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyDescription]) { + m_tags.insert(QtMultimedia::MetaData::Description, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyPublisher]) { + m_tags.insert(QtMultimedia::MetaData::Publisher, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyContributor]) { + m_tags.insert(QtMultimedia::MetaData::ContributingArtist, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyCreationDate]) { + m_tags.insert(QtMultimedia::MetaData::Date, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyType]) { + m_tags.insert(QtMultimedia::MetaData::MediaType, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyLanguage]) { + m_tags.insert(QtMultimedia::MetaData::Language, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyCopyrights]) { + m_tags.insert(QtMultimedia::MetaData::Copyright, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyAlbumName]) { + m_tags.insert(QtMultimedia::MetaData::AlbumTitle, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyAuthor]) { + m_tags.insert(QtMultimedia::MetaData::Author, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyArtist]) { + m_tags.insert(QtMultimedia::MetaData::AlbumArtist, QString([value UTF8String])); + } else if ([keyString isEqualToString: AVMetadataCommonKeyArtwork]) { + m_tags.insert(QtMultimedia::MetaData::PosterUrl, QString([value UTF8String])); + } + } + + if ([format isEqualToString:AVMetadataFormatID3Metadata]) { + //TODO: Process ID3 metadata + } else if ([format isEqualToString:AVMetadataFormatiTunesMetadata]) { + //TODO: Process iTunes metadata + } else if ([format isEqualToString:AVMetadataFormatQuickTimeUserData]) { + //TODO: Process QuickTime metadata + } + } + } + + Q_EMIT metaDataChanged(); +} |