mirror of
https://github.com/wang-bin/QtAV.git
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wang-bin
110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
/******************************************************************************
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Simple Player: this file is part of QtAV examples
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Copyright (C) 2014-2015 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#include "playerwindow.h"
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#include <QPushButton>
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#include <QSlider>
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#include <QLabel>
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#include <QLayout>
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#include <QMessageBox>
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#include <QFileDialog>
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#include <QtAVWidgets>
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using namespace QtAV;
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PlayerWindow::PlayerWindow(QWidget *parent) : QWidget(parent)
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{
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QtAV::Widgets::registerRenderers();
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setWindowTitle(QString::fromLatin1("QtAV simple player example"));
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m_player = new AVPlayer(this);
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QVBoxLayout *vl = new QVBoxLayout();
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setLayout(vl);
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m_vo = new VideoOutput(this);
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if (!m_vo->widget()) {
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QMessageBox::warning(0, QString::fromLatin1("QtAV error"), QString::fromLatin1("Can not create video renderer"));
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return;
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}
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m_player->setRenderer(m_vo);
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vl->addWidget(m_vo->widget());
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m_slider = new QSlider();
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m_slider->setOrientation(Qt::Horizontal);
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connect(m_slider, SIGNAL(sliderMoved(int)), SLOT(seek(int)));
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connect(m_player, SIGNAL(positionChanged(qint64)), SLOT(updateSlider()));
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connect(m_player, SIGNAL(started()), SLOT(updateSlider()));
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vl->addWidget(m_slider);
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QHBoxLayout *hb = new QHBoxLayout();
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vl->addLayout(hb);
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m_openBtn = new QPushButton(tr("Open"));
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m_captureBtn = new QPushButton(tr("Capture video frame"));
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hb->addWidget(m_openBtn);
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hb->addWidget(m_captureBtn);
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m_preview = new QLabel(tr("Capture preview"));
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m_preview->setFixedSize(200, 150);
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hb->addWidget(m_preview);
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connect(m_openBtn, SIGNAL(clicked()), SLOT(openMedia()));
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connect(m_captureBtn, SIGNAL(clicked()), SLOT(capture()));
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connect(m_player->videoCapture(), SIGNAL(imageCaptured(QImage)), SLOT(updatePreview(QImage)));
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connect(m_player->videoCapture(), SIGNAL(saved(QString)), SLOT(onCaptureSaved(QString)));
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connect(m_player->videoCapture(), SIGNAL(failed()), SLOT(onCaptureError()));
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}
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void PlayerWindow::openMedia()
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{
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QString file = QFileDialog::getOpenFileName(0, tr( "Open a video"));
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if (file.isEmpty())
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return;
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m_player->play(file);
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}
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void PlayerWindow::seek(int pos)
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{
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if (!m_player->isPlaying())
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return;
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m_player->seek(pos*1000LL); // to msecs
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}
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void PlayerWindow::updateSlider()
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{
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m_slider->setRange(0, int(m_player->duration()/1000LL));
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m_slider->setValue(int(m_player->position()/1000LL));
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}
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void PlayerWindow::updatePreview(const QImage &image)
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{
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m_preview->setPixmap(QPixmap::fromImage(image).scaled(m_preview->size()));
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}
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void PlayerWindow::capture()
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{
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//m_player->captureVideo();
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m_player->videoCapture()->capture();
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}
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void PlayerWindow::onCaptureSaved(const QString &path)
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{
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setWindowTitle(tr("saved to: ") + path);
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}
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void PlayerWindow::onCaptureError()
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{
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QMessageBox::warning(0, QString::fromLatin1("QtAV video capture"), tr("Failed to capture video frame"));
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}
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