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@ -2,7 +2,7 @@ |
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#include "opencv2/opencv_modules.hpp" |
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#if defined(HAVE_OPENCV_CUDACODEC) && defined(_WIN32) |
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#if defined(HAVE_OPENCV_CUDACODEC) |
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#include <vector> |
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#include <numeric> |
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@ -20,7 +20,7 @@ int main(int argc, const char* argv[]) |
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return -1; |
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} |
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const double FPS = 25.0; |
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constexpr double fps = 25.0; |
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cv::VideoCapture reader(argv[1]); |
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@ -37,17 +37,12 @@ int main(int argc, const char* argv[]) |
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cv::Mat frame; |
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cv::cuda::GpuMat d_frame; |
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std::vector<double> cpu_times; |
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std::vector<double> gpu_times; |
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TickMeter tm; |
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cv::cuda::Stream stream; |
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for (int i = 1;; ++i) |
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{ |
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std::cout << "Read " << i << " frame" << std::endl; |
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reader >> frame; |
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if (frame.empty()) |
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{ |
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std::cout << "Stop" << std::endl; |
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@ -57,47 +52,27 @@ int main(int argc, const char* argv[]) |
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if (!writer.isOpened()) |
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{ |
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std::cout << "Frame Size : " << frame.cols << "x" << frame.rows << std::endl; |
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std::cout << "Open CPU Writer" << std::endl; |
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if (!writer.open("output_cpu.avi", cv::VideoWriter::fourcc('X', 'V', 'I', 'D'), FPS, frame.size())) |
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const String outputFilename = "output_cpu.avi"; |
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if (!writer.open(outputFilename, cv::VideoWriter::fourcc('X', 'V', 'I', 'D'), fps, frame.size())) |
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return -1; |
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std::cout << "Writing to " << outputFilename << std::endl; |
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} |
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if (d_writer.empty()) |
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{ |
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std::cout << "Open CUDA Writer" << std::endl; |
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const cv::String outputFilename = "output_gpu.avi"; |
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d_writer = cv::cudacodec::createVideoWriter(outputFilename, frame.size(), FPS); |
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const cv::String outputFilename = "output_gpu.h264"; |
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d_writer = cv::cudacodec::createVideoWriter(outputFilename, frame.size(), cv::cudacodec::Codec::H264, fps, cv::cudacodec::ColorFormat::BGR, 0, stream); |
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std::cout << "Writing to " << outputFilename << std::endl; |
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} |
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d_frame.upload(frame); |
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d_frame.upload(frame, stream); |
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std::cout << "Write " << i << " frame" << std::endl; |
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tm.reset(); tm.start(); |
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writer.write(frame); |
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tm.stop(); |
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cpu_times.push_back(tm.getTimeMilli()); |
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tm.reset(); tm.start(); |
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d_writer->write(d_frame); |
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tm.stop(); |
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gpu_times.push_back(tm.getTimeMilli()); |
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} |
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std::cout << std::endl << "Results:" << std::endl; |
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std::sort(cpu_times.begin(), cpu_times.end()); |
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std::sort(gpu_times.begin(), gpu_times.end()); |
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double cpu_avg = std::accumulate(cpu_times.begin(), cpu_times.end(), 0.0) / cpu_times.size(); |
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double gpu_avg = std::accumulate(gpu_times.begin(), gpu_times.end(), 0.0) / gpu_times.size(); |
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std::cout << "CPU [XVID] : Avg : " << cpu_avg << " ms FPS : " << 1000.0 / cpu_avg << std::endl; |
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std::cout << "GPU [H264] : Avg : " << gpu_avg << " ms FPS : " << 1000.0 / gpu_avg << std::endl; |
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return 0; |
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} |
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