diff options
Diffstat (limited to 'src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp')
| -rw-r--r-- | src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp | 370 |
1 files changed, 370 insertions, 0 deletions
diff --git a/src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp b/src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp new file mode 100644 index 0000000..7b2552f --- /dev/null +++ b/src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp @@ -0,0 +1,370 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <dshow.h> +#include <initguid.h> +#include <qnetwork.h> + +#include "directshowmetadatacontrol.h" + +#include "directshowplayerservice.h" + +#include <QtCore/qcoreapplication.h> + + +QT_BEGIN_NAMESPACE + +#ifndef QT_NO_WMSDK +namespace +{ + struct QWMMetaDataKeyLookup + { + QtMultimedia::MetaData key; + const wchar_t *token; + }; +} + +static const QWMMetaDataKeyLookup qt_wmMetaDataKeys[] = +{ + { QtMultimedia::Title, L"Title" }, + { QtMultimedia::SubTitle, L"WM/SubTitle" }, + { QtMultimedia::Author, L"Author" }, + { QtMultimedia::Comment, L"Comment" }, + { QtMultimedia::Description, L"Description" }, + { QtMultimedia::Category, L"WM/Category" }, + { QtMultimedia::Genre, L"WM/Genre" }, + //{ QtMultimedia::Date, 0 }, + { QtMultimedia::Year, L"WM/Year" }, + { QtMultimedia::UserRating, L"UserRating" }, + //{ QtMultimedia::MetaDatawords, 0 }, + { QtMultimedia::Language, L"Language" }, + { QtMultimedia::Publisher, L"WM/Publisher" }, + { QtMultimedia::Copyright, L"Copyright" }, + { QtMultimedia::ParentalRating, L"ParentalRating" }, + { QtMultimedia::RatingOrganisation, L"RatingOrganisation" }, + + // Media + { QtMultimedia::Size, L"FileSize" }, + { QtMultimedia::MediaType, L"MediaType" }, + { QtMultimedia::Duration, L"Duration" }, + + // Audio + { QtMultimedia::AudioBitRate, L"AudioBitRate" }, + { QtMultimedia::AudioCodec, L"AudioCodec" }, + { QtMultimedia::ChannelCount, L"ChannelCount" }, + { QtMultimedia::SampleRate, L"Frequency" }, + + // Music + { QtMultimedia::AlbumTitle, L"WM/AlbumTitle" }, + { QtMultimedia::AlbumArtist, L"WM/AlbumArtist" }, + { QtMultimedia::ContributingArtist, L"Author" }, + { QtMultimedia::Composer, L"WM/Composer" }, + { QtMultimedia::Conductor, L"WM/Conductor" }, + { QtMultimedia::Lyrics, L"WM/Lyrics" }, + { QtMultimedia::Mood, L"WM/Mood" }, + { QtMultimedia::TrackNumber, L"WM/TrackNumber" }, + //{ QtMultimedia::TrackCount, 0 }, + //{ QtMultimedia::CoverArtUriSmall, 0 }, + //{ QtMultimedia::CoverArtUriLarge, 0 }, + + // Image/Video + //{ QtMultimedia::Resolution, 0 }, + //{ QtMultimedia::PixelAspectRatio, 0 }, + + // Video + //{ QtMultimedia::FrameRate, 0 }, + { QtMultimedia::VideoBitRate, L"VideoBitRate" }, + { QtMultimedia::VideoCodec, L"VideoCodec" }, + + //{ QtMultimedia::PosterUri, 0 }, + + // Movie + { QtMultimedia::ChapterNumber, L"ChapterNumber" }, + { QtMultimedia::Director, L"WM/Director" }, + { QtMultimedia::LeadPerformer, L"LeadPerformer" }, + { QtMultimedia::Writer, L"WM/Writer" }, + + // Photos + { QtMultimedia::CameraManufacturer, L"CameraManufacturer" }, + { QtMultimedia::CameraModel, L"CameraModel" }, + { QtMultimedia::Event, L"Event" }, + { QtMultimedia::Subject, L"Subject" } +}; + +static QVariant getValue(IWMHeaderInfo *header, const wchar_t *key) +{ + WORD streamNumber = 0; + WMT_ATTR_DATATYPE type = WMT_TYPE_DWORD; + WORD size = 0; + + if (header->GetAttributeByName(&streamNumber, key, &type, 0, &size) == S_OK) { + switch (type) { + case WMT_TYPE_DWORD: + if (size == sizeof(DWORD)) { + DWORD word; + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(&word), + &size) == S_OK) { + return int(word); + } + } + break; + case WMT_TYPE_STRING: + { + QString string; + string.resize(size / 2 - 1); + + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(const_cast<ushort *>(string.utf16())), + &size) == S_OK) { + return string; + } + } + break; + case WMT_TYPE_BINARY: + { + QByteArray bytes; + bytes.resize(size); + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(bytes.data()), + &size) == S_OK) { + return bytes; + } + } + break; + case WMT_TYPE_BOOL: + if (size == sizeof(DWORD)) { + DWORD word; + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(&word), + &size) == S_OK) { + return bool(word); + } + } + break; + case WMT_TYPE_QWORD: + if (size == sizeof(QWORD)) { + QWORD word; + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(&word), + &size) == S_OK) { + return qint64(word); + } + } + break; + case WMT_TYPE_WORD: + if (size == sizeof(WORD)){ + WORD word; + if (header->GetAttributeByName( + &streamNumber, + key, + &type, + reinterpret_cast<BYTE *>(&word), + &size) == S_OK) { + return short(word); + } + } + break; + case WMT_TYPE_GUID: + if (size == 16) { + } + break; + default: + break; + } + } + return QVariant(); +} +#endif + +DirectShowMetaDataControl::DirectShowMetaDataControl(QObject *parent) + : QMetaDataControl(parent) + , m_content(0) +#ifndef QT_NO_WMSDK + , m_headerInfo(0) +#endif +{ +} + +DirectShowMetaDataControl::~DirectShowMetaDataControl() +{ +} + +bool DirectShowMetaDataControl::isWritable() const +{ + return false; +} + +bool DirectShowMetaDataControl::isMetaDataAvailable() const +{ +#ifndef QT_NO_WMSDK + return m_content || m_headerInfo; +#else + return m_content; +#endif +} + +QVariant DirectShowMetaDataControl::metaData(QtMultimedia::MetaData key) const +{ + QVariant value; + +#ifndef QT_NO_WMSDK + if (m_headerInfo) { + static const int count = sizeof(qt_wmMetaDataKeys) / sizeof(QWMMetaDataKeyLookup); + for (int i = 0; i < count; ++i) { + if (qt_wmMetaDataKeys[i].key == key) { + value = getValue(m_headerInfo, qt_wmMetaDataKeys[i].token); + break; + } + } + } else if (m_content) { +#else + if (m_content) { +#endif + BSTR string = 0; + + switch (key) { + case QtMultimedia::Author: + m_content->get_AuthorName(&string); + break; + case QtMultimedia::Title: + m_content->get_Title(&string); + break; + case QtMultimedia::ParentalRating: + m_content->get_Rating(&string); + break; + case QtMultimedia::Description: + m_content->get_Description(&string); + break; + case QtMultimedia::Copyright: + m_content->get_Copyright(&string); + break; + default: + break; + } + + if (string) { + value = QString::fromUtf16(string, ::SysStringLen(string)); + + ::SysFreeString(string); + } + } + return value; +} + +void DirectShowMetaDataControl::setMetaData(QtMultimedia::MetaData, const QVariant &) +{ +} + +QList<QtMultimedia::MetaData> DirectShowMetaDataControl::availableMetaData() const +{ + return QList<QtMultimedia::MetaData>(); +} + +QVariant DirectShowMetaDataControl::extendedMetaData(const QString &) const +{ + return QVariant(); +} + +void DirectShowMetaDataControl::setExtendedMetaData(const QString &, const QVariant &) +{ +} + +QStringList DirectShowMetaDataControl::availableExtendedMetaData() const +{ + return QStringList(); +} + +void DirectShowMetaDataControl::updateGraph(IFilterGraph2 *graph, IBaseFilter *source) +{ + if (m_content) + m_content->Release(); + + if (!graph || graph->QueryInterface( + IID_IAMMediaContent, reinterpret_cast<void **>(&m_content)) != S_OK) { + m_content = 0; + } + +#ifdef QT_NO_WMSDK + Q_UNUSED(source); +#else + if (m_headerInfo) + m_headerInfo->Release(); + + m_headerInfo = com_cast<IWMHeaderInfo>(source); +#endif + // DirectShowMediaPlayerService holds a lock at this point so defer emitting signals to a later + // time. + QCoreApplication::postEvent(this, new QEvent(QEvent::Type(MetaDataChanged))); +} + +void DirectShowMetaDataControl::customEvent(QEvent *event) +{ + if (event->type() == QEvent::Type(MetaDataChanged)) { + event->accept(); + + emit metaDataChanged(); +#ifndef QT_NO_WMSDK + emit metaDataAvailableChanged(m_content || m_headerInfo); +#else + emit metaDataAvailableChanged(m_content); +#endif + } else { + QMetaDataControl::customEvent(event); + } +} + +QT_END_NAMESPACE |