mirror of
https://github.com/wang-bin/QtAV.git
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88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/******************************************************************************
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QtAV: Media play library based on Qt and FFmpeg
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Copyright (C) 2014 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#include <QtAV/VideoFrameExtractor.h>
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#include <QApplication>
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#include <QWidget>
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#include <QtAV/VideoRenderer.h>
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#include <QtAV/VideoRendererTypes.h>
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#include <QtDebug>
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#include <QtCore/QElapsedTimer>
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using namespace QtAV;
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class VideoFrameObserver : public QObject
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{
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Q_OBJECT
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public:
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VideoFrameObserver(QObject *parent = 0) : QObject(parent)
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{
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view = VideoRendererFactory::create(VideoRendererId_GLWidget2);
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view->widget()->resize(400, 300);
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view->widget()->show();
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}
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public Q_SLOTS:
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void onVideoFrameExtracted(const QtAV::VideoFrame& frame) {
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//VideoFrameExtractor *e = qobject_cast<VideoFrameExtractor*>(sender());
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//VideoFrame frame(e->frame());
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view->receive(frame);
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qDebug() << frame.format();
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qDebug("frame %dx%d", frame.width(), frame.height());
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}
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private:
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VideoRenderer *view;
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};
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int main(int argc, char** argv)
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{
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QApplication a(argc, argv);
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int idx = a.arguments().indexOf("-f");
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if (idx < 0)
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return -1;
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QString file = a.arguments().at(idx+1);
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idx = a.arguments().indexOf("-t");
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int t = 0;
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if (idx > 0)
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t = a.arguments().at(idx+1).toInt();
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int n = 1;
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idx = a.arguments().indexOf("-n");
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if (idx > 0)
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n = a.arguments().at(idx+1).toInt();
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bool async = a.arguments().contains("-async");
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VideoFrameExtractor extractor;
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extractor.setAsync(async);
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VideoFrameObserver obs;
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QObject::connect(&extractor, SIGNAL(frameExtracted(QtAV::VideoFrame)), &obs, SLOT(onVideoFrameExtracted(QtAV::VideoFrame)));
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extractor.setSource(file);
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QElapsedTimer timer;
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timer.start();
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for (int i = 0; i < n; ++i) {
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extractor.setPosition(t + 1000*i);
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}
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qDebug("elapsed: %lld", timer.elapsed());
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return a.exec();
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}
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#include "main.moc"
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