/****************************************************************************
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**
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** Copyright (C) 2017 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qplayer.h"
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#include <QtWidgets>
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#include <QVideoSurfaceFormat>
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#define MIME_IS_GIF(s) !(s).compare("image/gif")
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#define MIME_IS_IMAGE(s) ((s).startsWith("image/") && !MIME_IS_GIF(s))
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#define MIME_IS_VIDEO(s) ((s).startsWith("video/") || MIME_IS_GIF(s))
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#define MIME_IS_AUDIO(s) (s).startsWith("audio/")
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QPlayer::QPlayer()
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: player(nullptr, QMediaPlayer::VideoSurface)
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, list(nullptr)
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, playButton(nullptr)
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, positionSlider(nullptr)
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{
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exitButton = new QPushButton(tr("Exit"));
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connect(exitButton, &QAbstractButton::clicked, this, &QPlayer::exit);
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playButton = new QPushButton;
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playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
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connect(playButton, &QAbstractButton::clicked, this, &QPlayer::play);
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positionSlider = new QSlider(Qt::Horizontal);
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positionSlider->setRange(0, 0);
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connect(positionSlider, &QAbstractSlider::sliderMoved, this, &QPlayer::setPosition);
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connect(positionSlider, &QAbstractSlider::sliderReleased, this, &QPlayer::unMute);
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controlLayout = new QHBoxLayout;
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controlLayout->addWidget(exitButton);
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controlLayout->addWidget(playButton);
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controlLayout->addWidget(positionSlider);
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controlLayout->setMargin(0);
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control = new QWidget();
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control->setLayout(controlLayout);
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control->setWindowFlag(Qt::FramelessWindowHint);
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videoViewer = new QVideoWidget;
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imageViewer = new QLabel();
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imageViewer->setAlignment(Qt::AlignCenter);
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QBoxLayout *mainLayout = new QVBoxLayout();
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mainLayout->setMargin(0);
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mainLayout->setSpacing(0);
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mainLayout->addWidget(videoViewer);
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mainLayout->addWidget(imageViewer);
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mainLayout->addWidget(control);
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QWidget *widget = new QWidget();
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widget->setLayout(mainLayout);
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list = new QMediaPlaylist;
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player.setVideoOutput(videoViewer);
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setCentralWidget(widget);
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setWindowState(Qt::WindowMaximized);
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setWindowFlags(Qt::FramelessWindowHint);
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QPalette palette = QWidget::palette();
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palette.setColor(QPalette::Window, Qt::black);
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setPalette(palette);
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connect(&player, &QMediaPlayer::stateChanged, this, &QPlayer::mediaStateChanged);
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connect(&player, &QMediaPlayer::positionChanged, this, &QPlayer::positionChanged);
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connect(&player, &QMediaPlayer::durationChanged, this, &QPlayer::durationChanged);
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connect(&player, &QMediaPlayer::currentMediaChanged, this, &QPlayer::currentMediaChanged);
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connect(&player, QOverload<QMediaPlayer::Error>::of(&QMediaPlayer::error),
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this, &QPlayer::handleError);
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connect(&timer1, &QTimer::timeout, this, &QPlayer::displayImage);
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connect(&timer2, &QTimer::timeout, this, &QPlayer::next);
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}
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QPlayer::~QPlayer()
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{
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}
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bool QPlayer::isPlayerAvailable() const
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{
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return player.isAvailable();
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}
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void QPlayer::mouseDoubleClickEvent(QMouseEvent *e)
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{
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if(e->button() == Qt::LeftButton){
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if(isFullScreen()){
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showMaximized();
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control->show();
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}else {
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showFullScreen();
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control->hide();
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}
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}
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}
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void QPlayer::mouseReleaseEvent(QMouseEvent *e)
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{
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if(e->button() == Qt::LeftButton){
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}
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}
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void QPlayer::keyReleaseEvent(QKeyEvent *e)
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{
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int v;
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switch(e->key())
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{
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case Qt::Key_VolumeUp:
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case Qt::Key_Up:
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v = player.volume();
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if(v < 100){
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v = v + 10;
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v = v<100?v:100;
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player.setVolume(v);
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qDebug() << "Key_VolumeUp: " << v;
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}
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break;
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case Qt::Key_VolumeDown:
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case Qt::Key_Down:
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v = player.volume();
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if(v > 0){
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v = v - 10;
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v = v>0?v:0;
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player.setVolume(v);
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qDebug() << "Key_VolumeDown: " << v;
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}
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break;
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}
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}
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void QPlayer::exit()
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{
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qApp->exit(0);
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}
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void QPlayer::displayImage()
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{
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QMimeDatabase db;
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QUrl url = list->currentMedia().canonicalUrl();
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QString s = db.mimeTypeForUrl(url).name();
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player.pause();
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timer1.stop();
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if(MIME_IS_IMAGE(s)){
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QImage img;
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img.load(url.toLocalFile());
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int w = geometry().width();
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int h = geometry().height() * 4 /5;
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imageViewer->setPixmap(QPixmap::fromImage(img.scaled(w, h, Qt::KeepAspectRatio)));
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imageViewer->show();
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if(list->mediaCount() > 1){
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timer2.start(5000);
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}
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}
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}
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void QPlayer::next()
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{
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timer2.stop();
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list->setCurrentIndex(list->nextIndex());
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play();
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}
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void QPlayer::setPlaylist(QStringList l)
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{
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if(! l.empty()){
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for(int i = 0; i < l.size(); i++){
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QString str = l.at(i);
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QFile f(l.at(i));
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QUrl u(str);
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if(f.exists()){
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list->addMedia(QUrl::fromLocalFile(str));
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}else if(u.isValid()){
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list->addMedia(u);
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}
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}
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list->setCurrentIndex(1);
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player.setPlaylist(list);
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}
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if(list->mediaCount() > 1){
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list->setPlaybackMode(QMediaPlaylist::Loop);
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} else {
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list->setPlaybackMode(QMediaPlaylist::CurrentItemOnce);
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}
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}
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void QPlayer::load(const QUrl &url)
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{
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player.setMedia(url);
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playButton->setEnabled(true);
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}
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void QPlayer::play()
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{
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switch(player.state()) {
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case QMediaPlayer::PlayingState:
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player.pause();
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break;
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default:
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player.play();
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break;
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}
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}
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void QPlayer::mediaStateChanged(QMediaPlayer::State state)
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{
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switch(state) {
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case QMediaPlayer::PlayingState:
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playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
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break;
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case QMediaPlayer::StoppedState:
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qApp->exit(0);
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break;
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default:
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playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
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break;
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}
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}
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void QPlayer::positionChanged(qint64 position)
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{
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positionSlider->setValue(position);
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}
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void QPlayer::durationChanged(qint64 duration)
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{
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positionSlider->setRange(0, duration);
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}
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void QPlayer::setPosition(int position)
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{
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if(! player.isSeekable())
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return;
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if(! player.isMuted())
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player.setMuted(true);
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player.setPosition(position);
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}
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void QPlayer::unMute()
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{
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player.setMuted(false);
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}
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void QPlayer::currentMediaChanged(const QMediaContent &media)
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{
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QUrl url = media.canonicalUrl();
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QMimeDatabase db;
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QMimeType mt = db.mimeTypeForUrl(url);
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QString s = mt.name();
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if(MIME_IS_IMAGE(s)){
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imageViewer->show();
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player.setVideoOutput(new QVideoWidget);
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timer1.start(1);
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}else if (MIME_IS_AUDIO(s)){
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int w = geometry().width();
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int h = geometry().height() - controlLayout->sizeHint().height();
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imageViewer->setPixmap(QPixmap(":/album.jpeg").scaled(w*2/3, h*2/3, Qt::KeepAspectRatio));
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imageViewer->show();
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player.setVideoOutput(new QVideoWidget);
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}else if(MIME_IS_VIDEO(s)){
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imageViewer->hide();
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player.setVideoOutput(videoViewer);
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videoViewer->show();
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}
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}
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void QPlayer::handleError()
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{
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const QString errorString = player.errorString();
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QString message = "Error: ";
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if (errorString.isEmpty())
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message += " #" + QString::number(int(player.error()));
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else
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message += errorString;
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qDebug() << message;
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if(QMessageBox::critical(this, "Qplayer Error", message)){
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exit();
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}
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}
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