--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/multimedia/directshow/player/directshowmetadatacontrol.cpp Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,365 @@
+/****************************************************************************
+**
+** 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 Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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>
+
+#ifndef QT_NO_WMSDK
+namespace
+{
+ struct QWMMetaDataKeyLookup
+ {
+ QtMedia::MetaData key;
+ const wchar_t *token;
+ };
+}
+
+static const QWMMetaDataKeyLookup qt_wmMetaDataKeys[] =
+{
+ { QtMedia::Title, L"Title" },
+ { QtMedia::SubTitle, L"WM/SubTitle" },
+ { QtMedia::Author, L"Author" },
+ { QtMedia::Comment, L"Comment" },
+ { QtMedia::Description, L"Description" },
+ { QtMedia::Category, L"WM/Category" },
+ { QtMedia::Genre, L"WM/Genre" },
+ //{ QtMedia::Date, 0 },
+ { QtMedia::Year, L"WM/Year" },
+ { QtMedia::UserRating, L"UserRating" },
+ //{ QtMedia::MetaDatawords, 0 },
+ { QtMedia::Language, L"Language" },
+ { QtMedia::Publisher, L"WM/Publisher" },
+ { QtMedia::Copyright, L"Copyright" },
+ { QtMedia::ParentalRating, L"ParentalRating" },
+ { QtMedia::RatingOrganisation, L"RatingOrganisation" },
+
+ // Media
+ { QtMedia::Size, L"FileSize" },
+ { QtMedia::MediaType, L"MediaType" },
+ { QtMedia::Duration, L"Duration" },
+
+ // Audio
+ { QtMedia::AudioBitRate, L"AudioBitRate" },
+ { QtMedia::AudioCodec, L"AudioCodec" },
+ { QtMedia::ChannelCount, L"ChannelCount" },
+ { QtMedia::SampleRate, L"Frequency" },
+
+ // Music
+ { QtMedia::AlbumTitle, L"WM/AlbumTitle" },
+ { QtMedia::AlbumArtist, L"WM/AlbumArtist" },
+ { QtMedia::ContributingArtist, L"Author" },
+ { QtMedia::Composer, L"WM/Composer" },
+ { QtMedia::Conductor, L"WM/Conductor" },
+ { QtMedia::Lyrics, L"WM/Lyrics" },
+ { QtMedia::Mood, L"WM/Mood" },
+ { QtMedia::TrackNumber, L"WM/TrackNumber" },
+ //{ QtMedia::TrackCount, 0 },
+ //{ QtMedia::CoverArtUriSmall, 0 },
+ //{ QtMedia::CoverArtUriLarge, 0 },
+
+ // Image/Video
+ //{ QtMedia::Resolution, 0 },
+ //{ QtMedia::PixelAspectRatio, 0 },
+
+ // Video
+ //{ QtMedia::FrameRate, 0 },
+ { QtMedia::VideoBitRate, L"VideoBitRate" },
+ { QtMedia::VideoCodec, L"VideoCodec" },
+
+ //{ QtMedia::PosterUri, 0 },
+
+ // Movie
+ { QtMedia::ChapterNumber, L"ChapterNumber" },
+ { QtMedia::Director, L"WM/Director" },
+ { QtMedia::LeadPerformer, L"LeadPerformer" },
+ { QtMedia::Writer, L"WM/Writer" },
+
+ // Photos
+ { QtMedia::CameraManufacturer, L"CameraManufacturer" },
+ { QtMedia::CameraModel, L"CameraModel" },
+ { QtMedia::Event, L"Event" },
+ { QtMedia::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(QtMedia::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 QtMedia::Author:
+ m_content->get_AuthorName(&string);
+ break;
+ case QtMedia::Title:
+ m_content->get_Title(&string);
+ break;
+ case QtMedia::ParentalRating:
+ m_content->get_Rating(&string);
+ break;
+ case QtMedia::Description:
+ m_content->get_Description(&string);
+ break;
+ case QtMedia::Copyright:
+ m_content->get_Copyright(&string);
+ break;
+ default:
+ break;
+ }
+
+ if (string) {
+ value = QString::fromUtf16(string, ::SysStringLen(string));
+
+ ::SysFreeString(string);
+ }
+ }
+ return value;
+}
+
+void DirectShowMetaDataControl::setMetaData(QtMedia::MetaData, const QVariant &)
+{
+}
+
+QList<QtMedia::MetaData> DirectShowMetaDataControl::availableMetaData() const
+{
+ return QList<QtMedia::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);
+ }
+}