Multimedia; Add directshow backend

1 files changed, 351 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..7335e3d
--- /dev/null
+++ b/src/plugins/mediaservices/directshow/mediaplayer/directshowmetadatacontrol.cpp
@@ -0,0 +1,351 @@
+/****************************************************************************
+**
+** 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
+
+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();
+}
+
+DirectShowMetaDataControl::DirectShowMetaDataControl(QObject *parent)
+    : QMetaDataControl(parent)
+    , m_content(0)
+    , m_headerInfo(0)
+{
+}
+
+DirectShowMetaDataControl::~DirectShowMetaDataControl()
+{
+}
+
+bool DirectShowMetaDataControl::isWritable() const
+{
+    return false;
+}
+
+bool DirectShowMetaDataControl::isMetaDataAvailable() const
+{
+    return m_content || m_headerInfo;
+}
+
+QVariant DirectShowMetaDataControl::metaData(QtMedia::MetaData key) const
+{
+    QVariant value;
+
+    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) {
+        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 (m_headerInfo)
+        m_headerInfo->Release();
+
+    if (!graph || graph->QueryInterface(
+            IID_IAMMediaContent, reinterpret_cast<void **>(&m_content)) != S_OK) {
+        m_content = 0;
+    }
+
+    m_headerInfo = com_cast<IWMHeaderInfo>(source);
+
+    // 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();
+        emit metaDataAvailableChanged(m_content || m_headerInfo);
+    } else {
+        QMetaDataControl::customEvent(event);
+    }
+}
+
+QT_END_NAMESPACE