diff options
Diffstat (limited to 'examples/multimediawidgets/customvideosurface/customvideoitem/videoitem.cpp')
-rw-r--r-- | examples/multimediawidgets/customvideosurface/customvideoitem/videoitem.cpp | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/examples/multimediawidgets/customvideosurface/customvideoitem/videoitem.cpp b/examples/multimediawidgets/customvideosurface/customvideoitem/videoitem.cpp deleted file mode 100644 index 0271f023a..000000000 --- a/examples/multimediawidgets/customvideosurface/customvideoitem/videoitem.cpp +++ /dev/null @@ -1,153 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "videoitem.h" - -#include <QPainter> -#include <QTransform> -#include <QVideoSurfaceFormat> - -VideoItem::VideoItem(QGraphicsItem *parent) - : QGraphicsItem(parent) - , imageFormat(QImage::Format_Invalid) - , framePainted(false) -{ -} - -VideoItem::~VideoItem() = default; - -QRectF VideoItem::boundingRect() const -{ - return QRectF(QPointF(0,0), surfaceFormat().sizeHint()); -} - -void VideoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) -{ - Q_UNUSED(option); - Q_UNUSED(widget); - - if (currentFrame.map(QVideoFrame::ReadOnly)) { - const QTransform oldTransform = painter->transform(); - - if (surfaceFormat().scanLineDirection() == QVideoSurfaceFormat::BottomToTop) { - painter->scale(1, -1); - painter->translate(0, -boundingRect().height()); - } - - painter->drawImage(boundingRect(), QImage( - currentFrame.bits(), - imageSize.width(), - imageSize.height(), - imageFormat)); - - painter->setTransform(oldTransform); - - framePainted = true; - - currentFrame.unmap(); - } -} - -QList<QVideoFrame::PixelFormat> VideoItem::supportedPixelFormats( - QVideoFrame::HandleType handleType) const -{ - if (handleType == QVideoFrame::NoHandle) { - return QList<QVideoFrame::PixelFormat>() - << QVideoFrame::Format_RGB32 - << QVideoFrame::Format_ARGB32 - << QVideoFrame::Format_ARGB32_Premultiplied - << QVideoFrame::Format_RGB565 - << QVideoFrame::Format_RGB555; - } - - return QList<QVideoFrame::PixelFormat>(); -} - -bool VideoItem::start(const QVideoSurfaceFormat &format) -{ - if (isFormatSupported(format)) { - imageFormat = QVideoFrame::imageFormatFromPixelFormat(format.pixelFormat()); - imageSize = format.frameSize(); - framePainted = true; - - QAbstractVideoSurface::start(format); - - prepareGeometryChange(); - - return true; - } - - return false; -} - -void VideoItem::stop() -{ - currentFrame = QVideoFrame(); - framePainted = false; - - QAbstractVideoSurface::stop(); -} - -bool VideoItem::present(const QVideoFrame &frame) -{ - if (!framePainted) { - if (!QAbstractVideoSurface::isActive()) - setError(StoppedError); - - return false; - } - - currentFrame = frame; - framePainted = false; - - update(); - - return true; -} |