qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/wmf/player/mfplayerservice.cpp

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#include "qmediacontent.h"

#include <QtCore/qdebug.h>

#include "mfplayercontrol.h"
#include "mfevrvideowindowcontrol.h"
#include "mfvideorenderercontrol.h"
#include "mfaudioendpointcontrol.h"
#include "mfaudioprobecontrol.h"
#include "mfvideoprobecontrol.h"
#include "mfplayerservice.h"
#include "mfplayersession.h"
#include "mfmetadatacontrol.h"

MFPlayerService::MFPlayerService(QObject *parent)
    : QMediaService(parent)
    , m_session(0)
    , m_videoWindowControl(0)
    , m_videoRendererControl(0)
{
    m_audioEndpointControl = new MFAudioEndpointControl(this);
    m_session = new MFPlayerSession(this);
    m_player = new MFPlayerControl(m_session);
    m_metaDataControl = new MFMetaDataControl(this);
}

MFPlayerService::~MFPlayerService()
{
    m_session->close();

    if (m_videoWindowControl)
        delete m_videoWindowControl;

    if (m_videoRendererControl)
        delete m_videoRendererControl;

    m_session->Release();
}

QMediaControl* MFPlayerService::requestControl(const char *name)
{
    if (qstrcmp(name, QMediaPlayerControl_iid) == 0) {
        return m_player;
    } else if (qstrcmp(name, QAudioOutputSelectorControl_iid) == 0) {
        return m_audioEndpointControl;
    } else if (qstrcmp(name, QMetaDataReaderControl_iid) == 0) {
        return m_metaDataControl;
    } else if (qstrcmp(name, QVideoRendererControl_iid) == 0) {
        if (!m_videoRendererControl && !m_videoWindowControl) {
            m_videoRendererControl = new MFVideoRendererControl;
            return m_videoRendererControl;
        }
    } else if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
        if (!m_videoRendererControl && !m_videoWindowControl) {
            m_videoWindowControl = new MFEvrVideoWindowControl;
            return m_videoWindowControl;
        }
    } else if (qstrcmp(name,QMediaAudioProbeControl_iid) == 0) {
        if (m_session) {
            MFAudioProbeControl *probe = new MFAudioProbeControl(this);
            m_session->addProbe(probe);
            return probe;
        }
        return 0;
    } else if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
        if (m_session) {
            MFVideoProbeControl *probe = new MFVideoProbeControl(this);
            m_session->addProbe(probe);
            return probe;
        }
        return 0;
    }

    return 0;
}

void MFPlayerService::releaseControl(QMediaControl *control)
{
    if (!control) {
        qWarning("QMediaService::releaseControl():"
                " Attempted release of null control");
    } else if (control == m_videoRendererControl) {
        m_videoRendererControl->setSurface(0);
        delete m_videoRendererControl;
        m_videoRendererControl = 0;
        return;
    } else if (control == m_videoWindowControl) {
        delete m_videoWindowControl;
        m_videoWindowControl = 0;
        return;
    }

    MFAudioProbeControl* audioProbe = qobject_cast<MFAudioProbeControl*>(control);
    if (audioProbe) {
        if (m_session)
            m_session->removeProbe(audioProbe);
        delete audioProbe;
        return;
    }

    MFVideoProbeControl* videoProbe = qobject_cast<MFVideoProbeControl*>(control);
    if (videoProbe) {
        if (m_session)
            m_session->removeProbe(videoProbe);
        delete videoProbe;
        return;
    }
}

MFAudioEndpointControl* MFPlayerService::audioEndpointControl() const
{
    return m_audioEndpointControl;
}

MFVideoRendererControl* MFPlayerService::videoRendererControl() const
{
    return m_videoRendererControl;
}

MFEvrVideoWindowControl* MFPlayerService::videoWindowControl() const
{
    return m_videoWindowControl;
}

MFMetaDataControl* MFPlayerService::metaDataControl() const
{
    return m_metaDataControl;
}