qplatformvideosink.cpp

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// Copyright (C) 2016 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 "qplatformvideosink_p.h"

#include <QtMultimedia/private/qmultimediautils_p.h>

QT_BEGIN_NAMESPACE

QPlatformVideoSink::QPlatformVideoSink(QVideoSink *parent) : QObject(parent), m_sink(parent) { }

QPlatformVideoSink::~QPlatformVideoSink() = default;

QSize QPlatformVideoSink::nativeSize() const

    QMutexLocker locker(&m_mutex);

    return m_nativeSize;

void QPlatformVideoSink::setNativeSize(QSize s)

        QMutexLocker locker(&m_mutex);

        if (m_nativeSize == s)

            return;

        m_nativeSize = s;

    Q_EMIT m_sink->videoSizeChanged();

void QPlatformVideoSink::setVideoFrame(const QVideoFrame &frame)

    bool sizeChanged = false;

    QVideoFrame currentFrame;

        QMutexLocker locker(&m_mutex);

        if (frame == m_currentVideoFrame)

            return;

        m_currentVideoFrame = frame;

        m_currentVideoFrame.setSubtitleText(m_subtitleText);

        const QSize size = qRotatedFramePresentationSize(frame);

        if (size != m_nativeSize) {

            m_nativeSize = size;

            sizeChanged = true;

        currentFrame = m_currentVideoFrame;

    onVideoFrameChanged(currentFrame);

    // emit signals outside the mutex to avoid deadlocks on the user side

    if (sizeChanged)

        Q_EMIT m_sink->videoSizeChanged();

    Q_EMIT m_sink->videoFrameChanged(frame);

QVideoFrame QPlatformVideoSink::currentVideoFrame() const

    QMutexLocker locker(&m_mutex);

    return m_currentVideoFrame;

void QPlatformVideoSink::setSubtitleText(const QString &subtitleText)

        QMutexLocker locker(&m_mutex);

        if (m_subtitleText == subtitleText)

            return;

        m_subtitleText = subtitleText;

    Q_EMIT m_sink->subtitleTextChanged(subtitleText);

QString QPlatformVideoSink::subtitleText() const

    QMutexLocker locker(&m_mutex);

    return m_subtitleText;

QT_END_NAMESPACE

#include "moc_qplatformvideosink_p.cpp"