Show FPS and store result.avi video output in yolo_console_dll.cpp

AlexeyAB

2017-09-11 8d41842cf2206011733aade804f363db4da5ff63

Show FPS and store result.avi video output in yolo_console_dll.cpp

 src/image.c

@@ -543,6 +543,10 @@
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('H', '2', '6', '4'), 25, size, 1);
            output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('D', 'I', 'V', 'X'), 25, size, 1);
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'J', 'P', 'G'), 25, size, 1);
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', 'V'), 25, size, 1);
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('M', 'P', '4', '2'), 25, size, 1);
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('X', 'V', 'I', 'D'), 25, size, 1);
            //output_video = cvCreateVideoWriter(out_filename, CV_FOURCC('W', 'M', 'V', '2'), 25, size, 1);
        }

        cvWriteFrame(output_video, disp);   // comment this line to improve FPS !!!

 src/yolo_console_dll.cpp

@@ -23,7 +23,9 @@
#endif


void draw_boxes(cv::Mat mat_img, std::vector<bbox_t> result_vec, std::vector<std::string> obj_names, unsigned int wait_msec = 0) {
void draw_boxes(cv::Mat mat_img, std::vector<bbox_t> result_vec, std::vector<std::string> obj_names, 
    unsigned int wait_msec = 0, int current_fps = -1)
{
    for (auto &i : result_vec) {
        cv::Scalar color(60, 160, 260);
        cv::rectangle(mat_img, cv::Rect(i.x, i.y, i.w, i.h), color, 5);
@@ -38,6 +40,8 @@
            putText(mat_img, obj_name, cv::Point2f(i.x, i.y - 10), cv::FONT_HERSHEY_COMPLEX_SMALL, 1.2, cv::Scalar(0, 0, 0), 2);
        }
    }
    if(current_fps >= 0)
        putText(mat_img, "FPS: " + std::to_string(current_fps), cv::Point2f(10, 20), cv::FONT_HERSHEY_COMPLEX_SMALL, 1.2, cv::Scalar(50, 255, 0), 2);
    cv::imshow("window name", mat_img);
    cv::waitKey(wait_msec);
}
@@ -71,6 +75,8 @@
    Detector detector("yolo-voc.cfg", "yolo-voc.weights");

    auto obj_names = objects_names_from_file("data/voc.names");
    std::string out_videofile = "result.avi";
    bool const save_output_videofile = false;

    while (true) 
    {       
@@ -91,9 +97,15 @@
                std::thread td([]() {});
                std::atomic<int> ready_flag;
                ready_flag = true;
                std::chrono::steady_clock::time_point steady_start, steady_end;
                int fps_counter = 0, current_fps = 0;
                cv::VideoWriter output_video;
                for (cv::VideoCapture cap(filename); cap >> frame, cap.isOpened();) {
                    if(!output_video.isOpened() && save_output_videofile)
                        output_video.open(out_videofile, CV_FOURCC('D','I','V','X'), cap.get(CV_CAP_PROP_FPS), frame.size(), true);
                    if (ready_flag || (protocol != "rtsp://" && protocol != "http://" && protocol != "https:/")) {
                        td.join();
                        ++fps_counter;
                        ready_flag = false;
                        result_vec = thread_result_vec;
                        result_vec = detector.tracking(result_vec); // comment it - if track_id is not required
@@ -101,8 +113,16 @@
                        td = std::thread([&]() { thread_result_vec = detector.detect(det_frame, 0.24, true); ready_flag = true; });
                    }
                    if (!prev_frame.empty()) {                      
                        draw_boxes(prev_frame, result_vec, obj_names, 3);
                        steady_end = std::chrono::steady_clock::now();
                        if (std::chrono::duration<double>(steady_end - steady_start).count() >= 1) {
                            current_fps = fps_counter;
                            steady_start = steady_end;
                            fps_counter = 0;
                        }
                        draw_boxes(prev_frame, result_vec, obj_names, 3, current_fps);
                        show_result(result_vec, obj_names);
                        if (output_video.isOpened())
                            output_video << prev_frame;
                    }
                    prev_frame = frame;
                }