f4334277
 Hu Chunming
提交3rdparty
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// Capture support for WinRT
// Copyright (c) Microsoft Open Technologies, Inc.
// All rights reserved.
//
// (3 - clause BSD License)
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that
// the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
// following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or
// promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT(INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#pragma once
#include "precomp.hpp"
#include <mutex>
#include <memory>
#include <condition_variable>
#include <atomic>
#include <agile.h>
// nb. implemented the newer IVideoCapture C++ interface so that we can work
// directly with Mat, not the older C cv interface
// (which may have added overhead for IPL file conversion)
namespace cv {
class VideoCapture_WinRT : public IVideoCapture
{
public:
VideoCapture_WinRT() : started(false) {}
VideoCapture_WinRT(int device);
virtual ~VideoCapture_WinRT() {}
// from base class IVideoCapture
virtual double getProperty(int) { return 0; }
virtual bool setProperty(int, double);
virtual bool grabFrame();
virtual bool retrieveFrame(int channel, cv::OutputArray outArray);
virtual int getCaptureDomain() CV_OVERRIDE { return CAP_WINRT; }
virtual bool isOpened() const;
protected:
bool started;
CvSize size;
int bytesPerPixel;
unsigned long frameCurrent;
std::atomic<bool> isFrameNew;
};
}
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