File indexing completed on 2024-05-12 16:35:05
0001 /* This file is part of the KDE project 0002 * Copyright (C) 2012 Gopalakrishna Bhat A <gopalakbhat@gmail.com> 0003 * 0004 * This library is free software; you can redistribute it and/or 0005 * modify it under the terms of the GNU Library General Public 0006 * License as published by the Free Software Foundation; either 0007 * version 2 of the License, or (at your option) any later version. 0008 * 0009 * This library is distributed in the hope that it will be useful, 0010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0012 * Library General Public License for more details. 0013 * 0014 * You should have received a copy of the GNU Library General Public License 0015 * along with this library; see the file COPYING.LIB. If not, write to 0016 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0017 * Boston, MA 02110-1301, USA. 0018 */ 0019 0020 #ifndef VIDEOTHUMBNAILER_H 0021 #define VIDEOTHUMBNAILER_H 0022 0023 #include <phonon/MediaObject> 0024 #include <phonon/Global> 0025 #include <phonon/experimental/videodataoutput2.h> 0026 0027 #include <QObject> 0028 #include <QImage> 0029 #include <QSize> 0030 #include <QEventLoop> 0031 0032 class VideoData; 0033 0034 namespace Phonon 0035 { 0036 namespace Experimental 0037 { 0038 class VideoDataOutput2; 0039 } 0040 class MediaObject; 0041 } 0042 0043 class VideoThumbnailer : public QObject 0044 { 0045 Q_OBJECT 0046 0047 public: 0048 VideoThumbnailer(); 0049 ~VideoThumbnailer(); 0050 0051 void createThumbnail(VideoData *videoData, const QSize &size); 0052 QImage thumbnail(); 0053 0054 Q_SIGNALS: 0055 void thumbnailReady(); 0056 void signalCreateThumbnail(VideoData *videoData, const QSize &size); 0057 0058 private Q_SLOTS: 0059 void slotCreateThumbnail(VideoData *videoData, const QSize &size); 0060 void frameReady(const Phonon::Experimental::VideoFrame2 & frame); 0061 void stateChanged(Phonon::State newState, Phonon::State oldState); 0062 0063 private: 0064 static bool isFrameInteresting(const QImage &frame); 0065 Phonon::MediaObject m_media; 0066 Phonon::Experimental::VideoDataOutput2 m_vdata; 0067 QSize m_thumbnailSize; 0068 QEventLoop m_eventLoop; 0069 QImage m_thumbnailImage; 0070 }; 0071 0072 #endif //VIDEOTHUMBNAILER_H