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be670e168a
Update CMake rules to include Nvidia Video Codec SDK encoding libs
72 lines
1.4 KiB
C++
72 lines
1.4 KiB
C++
#include <iostream>
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#include "opencv2/opencv_modules.hpp"
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#if defined(HAVE_OPENCV_CUDACODEC)
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <numeric>
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#include <opencv2/core.hpp>
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#include <opencv2/core/opengl.hpp>
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#include <opencv2/cudacodec.hpp>
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#include <opencv2/highgui.hpp>
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int main(int argc, const char* argv[])
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{
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if (argc != 2)
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return -1;
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const std::string fname(argv[1]);
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cv::namedWindow("CPU", cv::WINDOW_NORMAL);
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#if defined(HAVE_OPENGL)
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cv::namedWindow("GPU", cv::WINDOW_OPENGL);
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cv::cuda::setGlDevice();
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#else
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cv::namedWindow("GPU", cv::WINDOW_NORMAL);
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#endif
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cv::TickMeter tm;
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cv::Mat frame;
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cv::VideoCapture reader(fname);
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for (;;)
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{
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if (!reader.read(frame))
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break;
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cv::imshow("CPU", frame);
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if (cv::waitKey(3) > 0)
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break;
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}
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cv::cuda::GpuMat d_frame;
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cv::Ptr<cv::cudacodec::VideoReader> d_reader = cv::cudacodec::createVideoReader(fname);
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for (;;)
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{
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if (!d_reader->nextFrame(d_frame))
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break;
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#if defined(HAVE_OPENGL)
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cv::imshow("GPU", cv::ogl::Texture2D(d_frame));
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#else
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d_frame.download(frame);
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cv::imshow("GPU", frame);
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#endif
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if (cv::waitKey(3) > 0)
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break;
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}
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return 0;
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}
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#else
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int main()
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{
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std::cout << "OpenCV was built without CUDA Video decoding support\n" << std::endl;
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return 0;
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}
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#endif
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