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47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
/*
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Copyright (C) 2014 by Project Tox <https://tox.im>
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This file is part of qTox, a Qt-based graphical interface for Tox.
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This program is libre 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.
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See the COPYING file for more details.
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*/
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#ifndef CAMERA_H
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#define CAMERA_H
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#include <QImage>
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#include "vpx/vpx_image.h"
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#include "opencv2/opencv.hpp"
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/**
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* This class is a wrapper to share a camera's captured video frames
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* It allows objects to suscribe and unsuscribe to the stream, starting
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* the camera only when needed, and giving access to the last frames
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**/
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class Camera
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{
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public:
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Camera();
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static Camera* getInstance(); ///< Returns the global widget's Camera instance
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void suscribe(); ///< Call this once before trying to get frames
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void unsuscribe(); ///< Call this once when you don't need frames anymore
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cv::Mat getLastFrame(); ///< Get the last captured frame
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QImage getLastImage(); ///< Convert the last frame to a QImage (can be expensive !)
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vpx_image getLastVPXImage(); ///< Convert the last frame to a vpx_image (can be expensive !)
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private:
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int refcount; ///< Number of users suscribed to the camera
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cv::VideoCapture cam; ///< OpenCV camera capture opbject
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};
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#endif // CAMERA_H
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