mirror of https://github.com/qt/qtdoc.git
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QGuiApplication>
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#include <QQmlApplicationEngine>
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#include <QCommandLineParser>
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#include <QDir>
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#include <QMediaFormat>
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#include <QMimeType>
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#include <algorithm>
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using namespace Qt::Literals::StringLiterals;
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struct NameFilters
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{
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QStringList filters;
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int preferred = 0;
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};
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static NameFilters nameFilters()
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{
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QStringList result;
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QString preferredFilter;
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const auto formats = QMediaFormat().supportedFileFormats(QMediaFormat::Decode);
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for (qsizetype m = 0, size = formats.size(); m < size; ++m) {
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const auto format = formats.at(m);
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QMediaFormat mediaFormat(format);
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const QMimeType mimeType = mediaFormat.mimeType();
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if (mimeType.isValid()) {
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QString filter = QMediaFormat::fileFormatDescription(format) + " ("_L1;
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const auto suffixes = mimeType.suffixes();
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for (qsizetype i = 0, size = suffixes.size(); i < size; ++i) {
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if (i)
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filter += u' ';
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filter += "*."_L1 + suffixes.at(i);
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}
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filter += u')';
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result.append(filter);
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if (mimeType.name() == "video/mp4"_L1)
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preferredFilter = filter;
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}
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}
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std::sort(result.begin(), result.end());
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const int preferred = preferredFilter.isEmpty() ? 0 : int(result.indexOf(preferredFilter));
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return { result, preferred };
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}
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int main(int argc, char *argv[])
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{
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QGuiApplication app(argc, argv);
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QCoreApplication::setApplicationName("MediaPlayer Example");
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QCoreApplication::setOrganizationName("QtProject");
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QCoreApplication::setApplicationVersion(QT_VERSION_STR);
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QCommandLineParser parser;
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parser.setApplicationDescription(QCoreApplication::translate("main", "Qt Quick MediaPlayer Example"));
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parser.addHelpOption();
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parser.addVersionOption();
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parser.addPositionalArgument("url", QCoreApplication::translate("main", "The URL(s) to open."));
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parser.process(app);
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QQmlApplicationEngine engine;
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QObject::connect(&engine, &QQmlApplicationEngine::quit, &app, &QGuiApplication::quit);
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QUrl source;
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if (!parser.positionalArguments().isEmpty())
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source = QUrl::fromUserInput(parser.positionalArguments().at(0), QDir::currentPath());
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const auto filters = nameFilters();
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QVariantMap initialProperties{
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{"source", source},
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{"nameFilters", filters.filters},
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{"selectedNameFilter", filters.preferred}
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};
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engine.setInitialProperties(initialProperties);
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engine.loadFromModule("MediaPlayer", "Main");
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return app.exec();
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}
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