Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
352
src/plugins/directshow/player/directshowmetadatacontrol.cpp
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352
src/plugins/directshow/player/directshowmetadatacontrol.cpp
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <dshow.h>
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#include <initguid.h>
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#include <qnetwork.h>
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#include "directshowmetadatacontrol.h"
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#include "directshowplayerservice.h"
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#include <QtCore/qcoreapplication.h>
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#ifndef QT_NO_WMSDK
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namespace
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{
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struct QWMMetaDataKeyLookup
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{
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QtMultimediaKit::MetaData key;
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const wchar_t *token;
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};
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}
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static const QWMMetaDataKeyLookup qt_wmMetaDataKeys[] =
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{
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{ QtMultimediaKit::Title, L"Title" },
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{ QtMultimediaKit::SubTitle, L"WM/SubTitle" },
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{ QtMultimediaKit::Author, L"Author" },
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{ QtMultimediaKit::Comment, L"Comment" },
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{ QtMultimediaKit::Description, L"Description" },
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{ QtMultimediaKit::Category, L"WM/Category" },
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{ QtMultimediaKit::Genre, L"WM/Genre" },
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//{ QtMultimediaKit::Date, 0 },
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{ QtMultimediaKit::Year, L"WM/Year" },
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{ QtMultimediaKit::UserRating, L"UserRating" },
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//{ QtMultimediaKit::MetaDatawords, 0 },
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{ QtMultimediaKit::Language, L"Language" },
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{ QtMultimediaKit::Publisher, L"WM/Publisher" },
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{ QtMultimediaKit::Copyright, L"Copyright" },
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{ QtMultimediaKit::ParentalRating, L"ParentalRating" },
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{ QtMultimediaKit::RatingOrganisation, L"RatingOrganisation" },
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// Media
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{ QtMultimediaKit::Size, L"FileSize" },
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{ QtMultimediaKit::MediaType, L"MediaType" },
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{ QtMultimediaKit::Duration, L"Duration" },
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// Audio
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{ QtMultimediaKit::AudioBitRate, L"AudioBitRate" },
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{ QtMultimediaKit::AudioCodec, L"AudioCodec" },
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{ QtMultimediaKit::ChannelCount, L"ChannelCount" },
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{ QtMultimediaKit::SampleRate, L"Frequency" },
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// Music
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{ QtMultimediaKit::AlbumTitle, L"WM/AlbumTitle" },
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{ QtMultimediaKit::AlbumArtist, L"WM/AlbumArtist" },
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{ QtMultimediaKit::ContributingArtist, L"Author" },
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{ QtMultimediaKit::Composer, L"WM/Composer" },
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{ QtMultimediaKit::Conductor, L"WM/Conductor" },
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{ QtMultimediaKit::Lyrics, L"WM/Lyrics" },
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{ QtMultimediaKit::Mood, L"WM/Mood" },
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{ QtMultimediaKit::TrackNumber, L"WM/TrackNumber" },
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//{ QtMultimediaKit::TrackCount, 0 },
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//{ QtMultimediaKit::CoverArtUriSmall, 0 },
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//{ QtMultimediaKit::CoverArtUriLarge, 0 },
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// Image/Video
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//{ QtMultimediaKit::Resolution, 0 },
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//{ QtMultimediaKit::PixelAspectRatio, 0 },
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// Video
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//{ QtMultimediaKit::FrameRate, 0 },
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{ QtMultimediaKit::VideoBitRate, L"VideoBitRate" },
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{ QtMultimediaKit::VideoCodec, L"VideoCodec" },
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//{ QtMultimediaKit::PosterUri, 0 },
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// Movie
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{ QtMultimediaKit::ChapterNumber, L"ChapterNumber" },
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{ QtMultimediaKit::Director, L"WM/Director" },
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{ QtMultimediaKit::LeadPerformer, L"LeadPerformer" },
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{ QtMultimediaKit::Writer, L"WM/Writer" },
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// Photos
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{ QtMultimediaKit::CameraManufacturer, L"CameraManufacturer" },
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{ QtMultimediaKit::CameraModel, L"CameraModel" },
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{ QtMultimediaKit::Event, L"Event" },
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{ QtMultimediaKit::Subject, L"Subject" }
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};
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static QVariant getValue(IWMHeaderInfo *header, const wchar_t *key)
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{
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WORD streamNumber = 0;
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WMT_ATTR_DATATYPE type = WMT_TYPE_DWORD;
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WORD size = 0;
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if (header->GetAttributeByName(&streamNumber, key, &type, 0, &size) == S_OK) {
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switch (type) {
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case WMT_TYPE_DWORD:
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if (size == sizeof(DWORD)) {
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DWORD word;
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(&word),
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&size) == S_OK) {
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return int(word);
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}
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}
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break;
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case WMT_TYPE_STRING:
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{
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QString string;
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string.resize(size / 2 - 1);
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(const_cast<ushort *>(string.utf16())),
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&size) == S_OK) {
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return string;
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}
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}
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break;
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case WMT_TYPE_BINARY:
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{
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QByteArray bytes;
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bytes.resize(size);
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(bytes.data()),
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&size) == S_OK) {
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return bytes;
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}
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}
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break;
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case WMT_TYPE_BOOL:
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if (size == sizeof(DWORD)) {
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DWORD word;
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(&word),
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&size) == S_OK) {
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return bool(word);
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}
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}
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break;
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case WMT_TYPE_QWORD:
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if (size == sizeof(QWORD)) {
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QWORD word;
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(&word),
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&size) == S_OK) {
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return qint64(word);
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}
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}
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break;
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case WMT_TYPE_WORD:
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if (size == sizeof(WORD)){
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WORD word;
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if (header->GetAttributeByName(
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&streamNumber,
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key,
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&type,
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reinterpret_cast<BYTE *>(&word),
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&size) == S_OK) {
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return short(word);
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}
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}
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break;
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case WMT_TYPE_GUID:
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if (size == 16) {
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}
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break;
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default:
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break;
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}
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}
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return QVariant();
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}
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#endif
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DirectShowMetaDataControl::DirectShowMetaDataControl(QObject *parent)
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: QMetaDataReaderControl(parent)
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, m_content(0)
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#ifndef QT_NO_WMSDK
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, m_headerInfo(0)
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#endif
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{
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}
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DirectShowMetaDataControl::~DirectShowMetaDataControl()
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{
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}
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bool DirectShowMetaDataControl::isMetaDataAvailable() const
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{
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#ifndef QT_NO_WMSDK
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return m_content || m_headerInfo;
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#else
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return m_content;
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#endif
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}
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QVariant DirectShowMetaDataControl::metaData(QtMultimediaKit::MetaData key) const
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{
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QVariant value;
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#ifndef QT_NO_WMSDK
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if (m_headerInfo) {
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static const int count = sizeof(qt_wmMetaDataKeys) / sizeof(QWMMetaDataKeyLookup);
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for (int i = 0; i < count; ++i) {
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if (qt_wmMetaDataKeys[i].key == key) {
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value = getValue(m_headerInfo, qt_wmMetaDataKeys[i].token);
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break;
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}
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}
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} else if (m_content) {
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#else
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if (m_content) {
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#endif
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BSTR string = 0;
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switch (key) {
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case QtMultimediaKit::Author:
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m_content->get_AuthorName(&string);
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break;
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case QtMultimediaKit::Title:
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m_content->get_Title(&string);
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break;
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case QtMultimediaKit::ParentalRating:
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m_content->get_Rating(&string);
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break;
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case QtMultimediaKit::Description:
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m_content->get_Description(&string);
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break;
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case QtMultimediaKit::Copyright:
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m_content->get_Copyright(&string);
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break;
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default:
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break;
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}
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if (string) {
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value = QString::fromUtf16(reinterpret_cast<ushort *>(string), ::SysStringLen(string));
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::SysFreeString(string);
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}
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}
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return value;
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}
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QList<QtMultimediaKit::MetaData> DirectShowMetaDataControl::availableMetaData() const
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{
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return QList<QtMultimediaKit::MetaData>();
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}
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QVariant DirectShowMetaDataControl::extendedMetaData(const QString &) const
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{
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return QVariant();
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}
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QStringList DirectShowMetaDataControl::availableExtendedMetaData() const
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{
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return QStringList();
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}
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void DirectShowMetaDataControl::updateGraph(IFilterGraph2 *graph, IBaseFilter *source)
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{
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if (m_content)
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m_content->Release();
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if (!graph || graph->QueryInterface(
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IID_IAMMediaContent, reinterpret_cast<void **>(&m_content)) != S_OK) {
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m_content = 0;
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}
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#ifdef QT_NO_WMSDK
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Q_UNUSED(source);
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#else
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if (m_headerInfo)
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m_headerInfo->Release();
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m_headerInfo = com_cast<IWMHeaderInfo>(source, IID_IWMHeaderInfo);
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#endif
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// DirectShowMediaPlayerService holds a lock at this point so defer emitting signals to a later
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// time.
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QCoreApplication::postEvent(this, new QEvent(QEvent::Type(MetaDataChanged)));
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}
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void DirectShowMetaDataControl::customEvent(QEvent *event)
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{
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if (event->type() == QEvent::Type(MetaDataChanged)) {
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event->accept();
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emit metaDataChanged();
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#ifndef QT_NO_WMSDK
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emit metaDataAvailableChanged(m_content || m_headerInfo);
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#else
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emit metaDataAvailableChanged(m_content);
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#endif
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} else {
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QMetaDataReaderControl::customEvent(event);
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}
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}
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