qwindowscamera.cpp

Enable keyboard shortcuts

// 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 "qwindowscamera_p.h"

#include <mediacapture/qwindowsmediacapture_p.h>

#include <mediacapture/qwindowsmediadevicesession_p.h>

#include <QtMultimedia/qcameradevice.h>

QT_BEGIN_NAMESPACE

QWindowsCamera::QWindowsCamera(QCamera *camera)

    : QPlatformCamera(camera)

QWindowsCamera::~QWindowsCamera() = default;

bool QWindowsCamera::isActive() const

    return m_active;

void QWindowsCamera::setActive(bool active)

    if (m_active == active)

        return;

    if (m_cameraDevice.isNull() && active)

        return;

    m_active = active;

    if (m_mediaDeviceSession)

        m_mediaDeviceSession->setActive(active);

    Q_EMIT activeChanged(m_active);

void QWindowsCamera::setCamera(const QCameraDevice &camera)

    if (m_cameraDevice == camera)

        return;

    m_cameraDevice = camera;

    if (m_mediaDeviceSession)

        m_mediaDeviceSession->setActiveCamera(camera);

void QWindowsCamera::setCaptureSession(QPlatformMediaCaptureSession *session)

    QWindowsMediaCaptureService *captureService = static_cast<QWindowsMediaCaptureService *>(session);

    if (m_captureService == captureService)

        return;

    if (m_mediaDeviceSession) {

        m_mediaDeviceSession->disconnect(this);

        m_mediaDeviceSession->setActive(false);

        m_mediaDeviceSession->setCameraFormat({});

        m_mediaDeviceSession->setActiveCamera({});

    m_captureService = captureService;

    if (!m_captureService) {

        m_mediaDeviceSession = nullptr;

        return;

    m_mediaDeviceSession = m_captureService->session();

    Q_ASSERT(m_mediaDeviceSession);

    m_mediaDeviceSession->setActive(false);

    m_mediaDeviceSession->setActiveCamera(m_cameraDevice);

    m_mediaDeviceSession->setCameraFormat(m_cameraFormat);

    m_mediaDeviceSession->setActive(m_active);

    connect(m_mediaDeviceSession, &QWindowsMediaDeviceSession::activeChanged,

            this, &QWindowsCamera::onActiveChanged);

bool QWindowsCamera::setCameraFormat(const QCameraFormat &format)

    if (!format.isNull() && !m_cameraDevice.videoFormats().contains(format))

        return false;

    m_cameraFormat = format.isNull() ? findBestCameraFormat(m_cameraDevice) : format;

    if (m_mediaDeviceSession)

        m_mediaDeviceSession->setCameraFormat(m_cameraFormat);

    return true;

void QWindowsCamera::onActiveChanged(bool active)

    if (m_active == active)

        return;

    if (m_cameraDevice.isNull() && active)

        return;

    m_active = active;

    Q_EMIT activeChanged(m_active);

QT_END_NAMESPACE

#include "moc_qwindowscamera_p.cpp"