121 lines
4.2 KiB
C++
121 lines
4.2 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/videostab/ring_buffer.hpp"
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#include "opencv2/opencv_modules.hpp"
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#ifdef HAVE_OPENCV_VIDEOIO
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# include "opencv2/videoio.hpp"
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#endif
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namespace cv
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{
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namespace videostab
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{
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namespace {
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class VideoFileSourceImpl : public IFrameSource
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{
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public:
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VideoFileSourceImpl(const String &path, bool volatileFrame)
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: path_(path), volatileFrame_(volatileFrame) { reset(); }
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virtual void reset()
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{
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#ifdef HAVE_OPENCV_VIDEOIO
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vc.release();
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vc.open(path_);
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if (!vc.isOpened())
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CV_Error(0, "can't open file: " + path_);
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#else
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CV_Error(Error::StsNotImplemented, "OpenCV has been compiled without video I/O support");
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#endif
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}
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virtual Mat nextFrame()
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{
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Mat frame;
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#ifdef HAVE_OPENCV_VIDEOIO
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vc >> frame;
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#endif
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return volatileFrame_ ? frame : frame.clone();
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}
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#ifdef HAVE_OPENCV_VIDEOIO
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int width() {return static_cast<int>(vc.get(CAP_PROP_FRAME_WIDTH));}
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int height() {return static_cast<int>(vc.get(CAP_PROP_FRAME_HEIGHT));}
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int count() {return static_cast<int>(vc.get(CAP_PROP_FRAME_COUNT));}
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double fps() {return vc.get(CAP_PROP_FPS);}
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#else
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int width() {return 0;}
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int height() {return 0;}
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int count() {return 0;}
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double fps() {return 0;}
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#endif
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private:
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String path_;
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bool volatileFrame_;
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#ifdef HAVE_OPENCV_VIDEOIO
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VideoCapture vc;
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#endif
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};
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}//namespace
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VideoFileSource::VideoFileSource(const String &path, bool volatileFrame)
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: impl(new VideoFileSourceImpl(path, volatileFrame)) {}
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void VideoFileSource::reset() { impl->reset(); }
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Mat VideoFileSource::nextFrame() { return impl->nextFrame(); }
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int VideoFileSource::width() { return ((VideoFileSourceImpl*)impl.get())->width(); }
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int VideoFileSource::height() { return ((VideoFileSourceImpl*)impl.get())->height(); }
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int VideoFileSource::count() { return ((VideoFileSourceImpl*)impl.get())->count(); }
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double VideoFileSource::fps() { return ((VideoFileSourceImpl*)impl.get())->fps(); }
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} // namespace videostab
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} // namespace cv
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