129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
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// Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include "precomp.hpp"
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#include "opencv2/videostab/frame_source.hpp"
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#include "opencv2/opencv_modules.hpp"
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#ifdef HAVE_OPENCV_HIGHGUI
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# include "opencv2/highgui/highgui.hpp"
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#endif
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using namespace std;
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namespace cv
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{
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namespace videostab
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{
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struct VideoFileSource::VideoReader
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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mutable VideoCapture vc;
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#endif
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};
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VideoFileSource::VideoFileSource(const string &path, bool volatileFrame)
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: path_(path), volatileFrame_(volatileFrame), reader_(VideoReader()) { reset(); }
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void VideoFileSource::reset()
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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reader_.vc.release();
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reader_.vc.open(path_);
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if (!reader_.vc.isOpened())
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throw runtime_error("can't open file: " + path_);
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#else
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CV_Error(CV_StsNotImplemented, "OpenCV has been compiled without video I/O support");
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#endif
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}
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Mat VideoFileSource::nextFrame()
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{
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Mat frame;
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#ifdef HAVE_OPENCV_HIGHGUI
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reader_.vc >> frame;
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#endif
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return volatileFrame_ ? frame : frame.clone();
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}
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int VideoFileSource::width()
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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return static_cast<int>(reader_.vc.get(CV_CAP_PROP_FRAME_WIDTH));
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#else
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return 0;
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#endif
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}
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int VideoFileSource::height()
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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return static_cast<int>(reader_.vc.get(CV_CAP_PROP_FRAME_HEIGHT));
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#else
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return 0;
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#endif
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}
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int VideoFileSource::count()
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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return static_cast<int>(reader_.vc.get(CV_CAP_PROP_FRAME_COUNT));
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#else
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return 0;
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#endif
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}
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double VideoFileSource::fps()
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{
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#ifdef HAVE_OPENCV_HIGHGUI
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return reader_.vc.get(CV_CAP_PROP_FPS);
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#else
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return 0;
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#endif
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}
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} // namespace videostab
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} // namespace cv
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