qwindowsintegration.cpp

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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qwindowsintegration_p.h"
 
#include <decoder/mfaudiodecodercontrol_p.h>
#include <mediacapture/qwindowscamera_p.h>
#include <mediacapture/qwindowsimagecapture_p.h>
#include <mediacapture/qwindowsmediacapture_p.h>
#include <mediacapture/qwindowsmediaencoder_p.h>
#include <player/qmediaengineplayer_p.h>
#include <qmediaenginevideosink_p.h>
#include <qwindowsformatinfo_p.h>
 
#include <QtMultimedia/private/qplatformmediaplugin_p.h>
#include <QtMultimedia/private/qwindowsaudiodevices_p.h>
#include <QtCore/private/qfunctions_win_p.h>
#include <QtCore/private/qsystemerror_p.h>
 
QT_BEGIN_NAMESPACE
 
using namespace Qt::StringLiterals;
 
class QWindowsMediaPlugin : public QPlatformMediaPlugin
{
    Q_OBJECT
    Q_PLUGIN_METADATA(IID QPlatformMediaPlugin_iid FILE "windows.json")
 
public:
    QWindowsMediaPlugin()
      : QPlatformMediaPlugin()
    {}
 
    QPlatformMediaIntegration* create(const QString &name) override
    {
        if (name != u"windows")
            return nullptr;
 
        qt_win_ensureComInitializedOnThisThread();
        HRESULT hr = MFStartup(MF_VERSION);
        if (SUCCEEDED(hr))
            return new QWindowsMediaIntegration;
 
        qWarning() << "Failed to initialize Media Foundation:"
                   << QSystemError::windowsComString(hr);
        return nullptr;
    }
};
 
QWindowsMediaIntegration::QWindowsMediaIntegration()
    : QPlatformMediaIntegration("windows"_L1)
{}
 
QWindowsMediaIntegration::~QWindowsMediaIntegration()
{
    MFShutdown();
}
 
QPlatformMediaFormatInfo *QWindowsMediaIntegration::createFormatInfo()
{
    return new QWindowsFormatInfo();
}
 
QPlatformVideoDevices *QWindowsMediaIntegration::createVideoDevices()
{
    return new QWindowsVideoDevices(this);
}
 
q23::expected<QPlatformMediaCaptureSession *, QString> QWindowsMediaIntegration::createCaptureSession()
{
    return new QWindowsMediaCaptureService();
}
 
q23::expected<QPlatformAudioDecoder *, QString> QWindowsMediaIntegration::createAudioDecoder(QAudioDecoder *decoder)
{
    return new MFAudioDecoderControl(decoder);
}
 
q23::expected<QPlatformMediaPlayer *, QString> QWindowsMediaIntegration::createPlayer(QMediaPlayer *parent)
{
    return new QMediaEnginePlayer(parent);
}
 
q23::expected<QPlatformCamera *, QString> QWindowsMediaIntegration::createCamera(QCamera *camera)
{
    return new QWindowsCamera(camera);
}
 
q23::expected<QPlatformMediaRecorder *, QString> QWindowsMediaIntegration::createRecorder(QMediaRecorder *recorder)
{
    return new QWindowsMediaEncoder(recorder);
}
 
q23::expected<QPlatformImageCapture *, QString> QWindowsMediaIntegration::createImageCapture(QImageCapture *imageCapture)
{
    return new QWindowsImageCapture(imageCapture);
}
 
q23::expected<QPlatformVideoSink *, QString> QWindowsMediaIntegration::createVideoSink(QVideoSink *sink)
{
    return new QMediaEngineVideoSink(sink);
}
 
QT_END_NAMESPACE
 
#include "qwindowsintegration.moc"