Super Resolution module

modules/superres/src/frame_source.cpp

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+/*M///////////////////////////////////////////////////////////////////////////////////////
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+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's 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.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
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+// 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
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+// In no event shall the Intel Corporation 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.
+//
+//M*/
+
+#include "precomp.hpp"
+
+using namespace std;
+using namespace cv;
+using namespace cv::gpu;
+using namespace cv::superres;
+using namespace cv::superres::detail;
+
+cv::superres::FrameSource::~FrameSource()
+{
+}
+
+//////////////////////////////////////////////////////
+// EmptyFrameSource
+
+namespace
+{
+    class EmptyFrameSource : public FrameSource
+    {
+    public:
+        void nextFrame(OutputArray frame);
+        void reset();
+    };
+
+    void EmptyFrameSource::nextFrame(OutputArray frame)
+    {
+        frame.release();
+    }
+
+    void EmptyFrameSource::reset()
+    {
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Empty()
+{
+    return new EmptyFrameSource;
+}
+
+//////////////////////////////////////////////////////
+// VideoFrameSource & CameraFrameSource
+
+#ifndef HAVE_OPENCV_HIGHGUI
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video(const string& fileName)
+{
+    (void) fileName;
+    CV_Error(CV_StsNotImplemented, "The called functionality is disabled for current build or platform");
+    return Ptr<FrameSource>();
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Camera(int deviceId)
+{
+    (void) deviceId;
+    CV_Error(CV_StsNotImplemented, "The called functionality is disabled for current build or platform");
+    return Ptr<FrameSource>();
+}
+
+#else // HAVE_OPENCV_HIGHGUI
+
+namespace
+{
+    class CaptureFrameSource : public FrameSource
+    {
+    public:
+        void nextFrame(OutputArray frame);
+
+    protected:
+        VideoCapture vc_;
+
+    private:
+        Mat frame_;
+    };
+
+    void CaptureFrameSource::nextFrame(OutputArray _frame)
+    {
+        if (_frame.kind() == _InputArray::MAT)
+        {
+            vc_ >> _frame.getMatRef();
+        }
+        else
+        {
+            vc_ >> frame_;
+            arrCopy(frame_, _frame);
+        }
+    }
+
+    class VideoFrameSource : public CaptureFrameSource
+    {
+    public:
+        VideoFrameSource(const string& fileName);
+
+        void reset();
+
+    private:
+        string fileName_;
+    };
+
+    VideoFrameSource::VideoFrameSource(const string& fileName) : fileName_(fileName)
+    {
+        reset();
+    }
+
+    void VideoFrameSource::reset()
+    {
+        vc_.release();
+        vc_.open(fileName_);
+        CV_Assert( vc_.isOpened() );
+    }
+
+    class CameraFrameSource : public CaptureFrameSource
+    {
+    public:
+        CameraFrameSource(int deviceId);
+
+        void reset();
+
+    private:
+        int deviceId_;
+    };
+
+    CameraFrameSource::CameraFrameSource(int deviceId) : deviceId_(deviceId)
+    {
+        reset();
+    }
+
+    void CameraFrameSource::reset()
+    {
+        vc_.release();
+        vc_.open(deviceId_);
+        CV_Assert( vc_.isOpened() );
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video(const string& fileName)
+{
+    return new VideoFrameSource(fileName);
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Camera(int deviceId)
+{
+    return new CameraFrameSource(deviceId);
+}
+
+#endif // HAVE_OPENCV_HIGHGUI
+
+//////////////////////////////////////////////////////
+// VideoFrameSource_GPU
+
+#ifndef HAVE_OPENCV_GPU
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video_GPU(const string& fileName)
+{
+    (void) fileName;
+    CV_Error(CV_StsNotImplemented, "The called functionality is disabled for current build or platform");
+    return Ptr<FrameSource>();
+}
+
+#else // HAVE_OPENCV_GPU
+
+namespace
+{
+    class VideoFrameSource_GPU : public FrameSource
+    {
+    public:
+        VideoFrameSource_GPU(const string& fileName);
+
+        void nextFrame(OutputArray frame);
+        void reset();
+
+    private:
+        string fileName_;
+        VideoReader_GPU reader_;
+        GpuMat frame_;
+    };
+
+    VideoFrameSource_GPU::VideoFrameSource_GPU(const string& fileName) : fileName_(fileName)
+    {
+        reset();
+    }
+
+    void VideoFrameSource_GPU::nextFrame(OutputArray _frame)
+    {
+        if (_frame.kind() == _InputArray::GPU_MAT)
+        {
+            bool res = reader_.read(_frame.getGpuMatRef());
+            if (!res)
+                _frame.release();
+        }
+        else
+        {
+            bool res = reader_.read(frame_);
+            if (!res)
+                _frame.release();
+            else
+                arrCopy(frame_, _frame);
+        }
+    }
+
+    void VideoFrameSource_GPU::reset()
+    {
+        reader_.close();
+        reader_.open(fileName_);
+        CV_Assert( reader_.isOpened() );
+    }
+}
+
+Ptr<FrameSource> cv::superres::createFrameSource_Video_GPU(const string& fileName)
+{
+    return new VideoFrameSource(fileName);
+}
+
+#endif // HAVE_OPENCV_GPU