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#include <QtCore/qstring.h>
#include <QtCore/qdebug.h>
#include <QtCore/QFile>

#include "dsserviceplugin.h"
#include "dsvideodevicecontrol.h"

#ifdef QMEDIA_DIRECTSHOW_CAMERA
#include <dshow.h>
#include "dscameraservice.h"
#endif

#ifdef QMEDIA_DIRECTSHOW_PLAYER
#include "directshowplayerservice.h"
#endif

#include <qmediaserviceproviderplugin.h>


#ifdef QMEDIA_DIRECTSHOW_CAMERA

extern const CLSID CLSID_VideoInputDeviceCategory;


#ifndef _STRSAFE_H_INCLUDED_
#include <tchar.h>
#endif
#include <dshow.h>
#include <objbase.h>
#include <initguid.h>
#ifdef Q_CC_MSVC
#  pragma comment(lib, "strmiids.lib")
#  pragma comment(lib, "ole32.lib")
#endif // Q_CC_MSVC
#include <windows.h>
#include <ocidl.h>
#endif

QT_USE_NAMESPACE

QMediaService* DSServicePlugin::create(QString const& key)
{
#ifdef QMEDIA_DIRECTSHOW_CAMERA
    if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
        return new DSCameraService;
#endif
#ifdef QMEDIA_DIRECTSHOW_PLAYER
    if (key == QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER))
        return new DirectShowPlayerService;
#endif

    return 0;
}

void DSServicePlugin::release(QMediaService *service)
{
    delete service;
}

QMediaServiceProviderHint::Features DSServicePlugin::supportedFeatures(
        const QByteArray &service) const
{
    if (service == Q_MEDIASERVICE_MEDIAPLAYER)
        return QMediaServiceProviderHint::StreamPlayback | QMediaServiceProviderHint::VideoSurface;
    else
        return QMediaServiceProviderHint::Features();
}

QList<QByteArray> DSServicePlugin::devices(const QByteArray &service) const
{
#ifdef QMEDIA_DIRECTSHOW_CAMERA
    if (service == Q_MEDIASERVICE_CAMERA) {
        if (m_cameraDevices.isEmpty())
            updateDevices();

        return m_cameraDevices;
    }
#endif

    return QList<QByteArray>();
}

QString DSServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
{
#ifdef QMEDIA_DIRECTSHOW_CAMERA
    if (service == Q_MEDIASERVICE_CAMERA) {
        if (m_cameraDevices.isEmpty())
            updateDevices();

        for (int i=0; i<m_cameraDevices.count(); i++)
            if (m_cameraDevices[i] == device)
                return m_cameraDescriptions[i];
    }
#endif
    return QString();
}

#ifdef QMEDIA_DIRECTSHOW_CAMERA

void DSServicePlugin::updateDevices() const
{
    DSVideoDeviceControl::enumerateDevices(&m_cameraDevices, &m_cameraDescriptions);

    if (m_cameraDevices.isEmpty()) {
        qWarning() << "No camera devices found";
    }
}
#endif