| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** 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 The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/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 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "avfmediaplayermetadatacontrol.h" |
| #include "avfmediaplayersession.h" |
| |
| #include <QtMultimedia/qmediametadata.h> |
| |
| #import <AVFoundation/AVFoundation.h> |
| |
| QT_USE_NAMESPACE |
| |
| AVFMediaPlayerMetaDataControl::AVFMediaPlayerMetaDataControl(AVFMediaPlayerSession *session, QObject *parent) |
| : QMetaDataReaderControl(parent) |
| , m_session(session) |
| , m_asset(nullptr) |
| { |
| 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(); |
| } |
| |
| static QString itemKey(AVMetadataItem *item) |
| { |
| NSString *keyString = [item commonKey]; |
| |
| if (keyString.length != 0) { |
| if ([keyString isEqualToString:AVMetadataCommonKeyTitle]) { |
| return QMediaMetaData::Title; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeySubject]) { |
| return QMediaMetaData::SubTitle; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyDescription]) { |
| return QMediaMetaData::Description; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyPublisher]) { |
| return QMediaMetaData::Publisher; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyCreationDate]) { |
| return QMediaMetaData::Date; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyType]) { |
| return QMediaMetaData::MediaType; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyLanguage]) { |
| return QMediaMetaData::Language; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyCopyrights]) { |
| return QMediaMetaData::Copyright; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyAlbumName]) { |
| return QMediaMetaData::AlbumTitle; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyAuthor]) { |
| return QMediaMetaData::Author; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyArtist]) { |
| return QMediaMetaData::ContributingArtist; |
| } else if ([keyString isEqualToString: AVMetadataCommonKeyArtwork]) { |
| return QMediaMetaData::PosterUrl; |
| } |
| } |
| |
| return QString(); |
| } |
| |
| void AVFMediaPlayerMetaDataControl::updateTags() |
| { |
| #ifdef QT_DEBUG_AVF |
| qDebug() << Q_FUNC_INFO; |
| #endif |
| AVAsset *currentAsset = static_cast<AVAsset*>(m_session->currentAssetHandle()); |
| |
| //Don't read the tags from the same asset more than once |
| if (currentAsset == m_asset) |
| return; |
| |
| m_asset = currentAsset; |
| |
| QVariantMap oldTags = m_tags; |
| //Since we've changed assets, clear old tags |
| m_tags.clear(); |
| bool changed = false; |
| |
| // TODO: also process ID3, iTunes and QuickTime metadata |
| |
| NSArray *metadataItems = [currentAsset commonMetadata]; |
| for (AVMetadataItem* item in metadataItems) { |
| const QString key = itemKey(item); |
| if (!key.isEmpty()) { |
| const QString value = QString::fromNSString([item stringValue]); |
| if (!value.isNull()) { |
| m_tags.insert(key, value); |
| if (value != oldTags.value(key)) { |
| changed = true; |
| Q_EMIT metaDataChanged(key, value); |
| } |
| } |
| } |
| } |
| |
| if (oldTags.isEmpty() != m_tags.isEmpty()) { |
| Q_EMIT metaDataAvailableChanged(!m_tags.isEmpty()); |
| changed = true; |
| } |
| |
| if (changed) |
| Q_EMIT metaDataChanged(); |
| } |