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/****************************************************************************
**
** 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 Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qt7backend.h"
#include "qt7playermetadata.h"
#include "qt7playersession.h"
#include <QtCore/qvarlengtharray.h>
#import <QTKit/QTMovie.h>
#ifdef QUICKTIME_C_API_AVAILABLE
#include <QuickTime/QuickTime.h>
#undef check // avoid name clash;
#endif
QT_USE_NAMESPACE
QT7PlayerMetaDataControl::QT7PlayerMetaDataControl(QT7PlayerSession *session, QObject *parent)
:QMetaDataReaderControl(parent), m_session(session)
{
}
QT7PlayerMetaDataControl::~QT7PlayerMetaDataControl()
{
}
bool QT7PlayerMetaDataControl::isMetaDataAvailable() const
{
return !m_tags.isEmpty();
}
bool QT7PlayerMetaDataControl::isWritable() const
{
return false;
}
QVariant QT7PlayerMetaDataControl::metaData(QtMultimedia::MetaData key) const
{
return m_tags.value(key);
}
QList<QtMultimedia::MetaData> QT7PlayerMetaDataControl::availableMetaData() const
{
return m_tags.keys();
}
QVariant QT7PlayerMetaDataControl::extendedMetaData(const QString &key) const
{
Q_UNUSED(key);
return QVariant();
}
QStringList QT7PlayerMetaDataControl::availableExtendedMetaData() const
{
return QStringList();
}
#ifdef QUICKTIME_C_API_AVAILABLE
static QString stripCopyRightSymbol(const QString &key)
{
return key.right(key.length()-1);
}
static QString convertQuickTimeKeyToUserKey(const QString &key)
{
if (key == QLatin1String("com.apple.quicktime.displayname"))
return QLatin1String("nam");
else if (key == QLatin1String("com.apple.quicktime.album"))
return QLatin1String("alb");
else if (key == QLatin1String("com.apple.quicktime.artist"))
return QLatin1String("ART");
else
return QLatin1String("???");
}
static OSStatus readMetaValue(QTMetaDataRef metaDataRef, QTMetaDataItem item, QTPropertyClass propClass,
QTPropertyID id, QTPropertyValuePtr *value, ByteCount *size)
{
QTPropertyValueType type;
ByteCount propSize;
UInt32 propFlags;
OSStatus err = QTMetaDataGetItemPropertyInfo(metaDataRef, item, propClass, id, &type, &propSize, &propFlags);
if (err == noErr) {
*value = malloc(propSize);
if (*value != 0) {
err = QTMetaDataGetItemProperty(metaDataRef, item, propClass, id, propSize, *value, size);
if (err == noErr && (type == 'code' || type == 'itsk' || type == 'itlk')) {
// convert from native endian to big endian
OSTypePtr pType = (OSTypePtr)*value;
*pType = EndianU32_NtoB(*pType);
}
}
else
return -1;
}
return err;
}
static UInt32 getMetaType(QTMetaDataRef metaDataRef, QTMetaDataItem item)
{
QTPropertyValuePtr value = 0;
ByteCount ignore = 0;
OSStatus err = readMetaValue(
metaDataRef, item, kPropertyClass_MetaDataItem, kQTMetaDataItemPropertyID_DataType, &value, &ignore);
if (err == noErr) {
UInt32 type = *((UInt32 *) value);
if (value)
free(value);
return type;
}
return 0;
}
static QString cFStringToQString(CFStringRef str)
{
if(!str)
return QString();
CFIndex length = CFStringGetLength(str);
const UniChar *chars = CFStringGetCharactersPtr(str);
if (chars)
return QString(reinterpret_cast<const QChar *>(chars), length);
QVarLengthArray<UniChar> buffer(length);
CFStringGetCharacters(str, CFRangeMake(0, length), buffer.data());
return QString(reinterpret_cast<const QChar *>(buffer.constData()), length);
}
static QString getMetaValue(QTMetaDataRef metaDataRef, QTMetaDataItem item, SInt32 id)
{
QTPropertyValuePtr value = 0;
ByteCount size = 0;
OSStatus err = readMetaValue(metaDataRef, item, kPropertyClass_MetaDataItem, id, &value, &size);
QString string;
if (err == noErr) {
UInt32 dataType = getMetaType(metaDataRef, item);
switch (dataType){
case kQTMetaDataTypeUTF8:
case kQTMetaDataTypeMacEncodedText:
string = cFStringToQString(CFStringCreateWithBytes(0, (UInt8*)value, size, kCFStringEncodingUTF8, false));
break;
case kQTMetaDataTypeUTF16BE:
string = cFStringToQString(CFStringCreateWithBytes(0, (UInt8*)value, size, kCFStringEncodingUTF16BE, false));
break;
default:
break;
}
if (value)
free(value);
}
return string;
}
static void readFormattedData(QTMetaDataRef metaDataRef, OSType format, QMultiMap<QString, QString> &result)
{
QTMetaDataItem item = kQTMetaDataItemUninitialized;
OSStatus err = QTMetaDataGetNextItem(metaDataRef, format, item, kQTMetaDataKeyFormatWildcard, 0, 0, &item);
while (err == noErr){
QString key = getMetaValue(metaDataRef, item, kQTMetaDataItemPropertyID_Key);
if (format == kQTMetaDataStorageFormatQuickTime)
key = convertQuickTimeKeyToUserKey(key);
else
key = stripCopyRightSymbol(key);
if (!result.contains(key)){
QString val = getMetaValue(metaDataRef, item, kQTMetaDataItemPropertyID_Value);
result.insert(key, val);
}
err = QTMetaDataGetNextItem(metaDataRef, format, item, kQTMetaDataKeyFormatWildcard, 0, 0, &item);
}
}
#endif
void QT7PlayerMetaDataControl::updateTags()
{
bool wasEmpty = m_tags.isEmpty();
m_tags.clear();
QTMovie *movie = (QTMovie*)m_session->movie();
if (movie) {
QMultiMap<QString, QString> metaMap;
#ifdef QUICKTIME_C_API_AVAILABLE
QTMetaDataRef metaDataRef;
OSStatus err = QTCopyMovieMetaData([movie quickTimeMovie], &metaDataRef);
if (err == noErr) {
readFormattedData(metaDataRef, kQTMetaDataStorageFormatUserData, metaMap);
readFormattedData(metaDataRef, kQTMetaDataStorageFormatQuickTime, metaMap);
readFormattedData(metaDataRef, kQTMetaDataStorageFormatiTunes, metaMap);
}
#else
AutoReleasePool pool;
NSString *name = [movie attributeForKey:@"QTMovieDisplayNameAttribute"];
metaMap.insert(QLatin1String("nam"), QString::fromUtf8([name UTF8String]));
#endif // QUICKTIME_C_API_AVAILABLE
m_tags.insert(QtMultimedia::AlbumArtist, metaMap.value(QLatin1String("ART")));
m_tags.insert(QtMultimedia::AlbumTitle, metaMap.value(QLatin1String("alb")));
m_tags.insert(QtMultimedia::Title, metaMap.value(QLatin1String("nam")));
m_tags.insert(QtMultimedia::Date, metaMap.value(QLatin1String("day")));
m_tags.insert(QtMultimedia::Genre, metaMap.value(QLatin1String("gnre")));
m_tags.insert(QtMultimedia::TrackNumber, metaMap.value(QLatin1String("trk")));
m_tags.insert(QtMultimedia::Description, metaMap.value(QLatin1String("des")));
}
if (!wasEmpty || !m_tags.isEmpty())
emit metaDataChanged();
}
#include "moc_qt7playermetadata.cpp"
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