add sample

wangrong

2025-01-23 02819b5c047bb354b0ef2374e7c6a6ac4bbd5bba

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#include "../nodes/vp_file_src_node.h" 
#include "../nodes/infers/vp_lane_detector_node.h" 
#include "../nodes/osd/vp_lane_osd_node.h" 
#include "../nodes/vp_screen_des_node.h" 
 
#include "../utils/analysis_board/vp_analysis_board.h" 
 
/* 
* ## lane_detect_sample ## 
* detect lanes on road. 
*/ 
 
int main() { 
    VP_SET_LOG_LEVEL(vp_utils::vp_log_level::INFO); 
    VP_LOGGER_INIT(); 
 
    // create nodes 
    auto file_src_0 = std::make_shared<vp_nodes::vp_file_src_node>("file_src_0", 0, "./vp_data/test_video/vehicle_count.mp4", 0.6, true, "avdec_h264", 4); 
    auto lane_detector = std::make_shared<vp_nodes::vp_lane_detector_node>("lane_detector", "./vp_data/models/lane/lane_det.onnx"); 
    auto lane_osd = std::make_shared<vp_nodes::vp_lane_osd_node>("lane_osd"); 
    auto screen_des_0_osd = std::make_shared<vp_nodes::vp_screen_des_node>("screen_des_0_osd", 0);     
    auto srceen_des_0_ori = std::make_shared<vp_nodes::vp_screen_des_node>("srceen_des_0_ori", 0, false); 
 
    // construct pipeline 
    lane_detector->attach_to({file_src_0}); 
    lane_osd->attach_to({lane_detector}); 
    screen_des_0_osd->attach_to({lane_osd}); 
    srceen_des_0_ori->attach_to({lane_osd}); 
 
    // start pipeline 
    file_src_0->start(); 
 
    // for debug purpose 
    vp_utils::vp_analysis_board board({file_src_0}); 
    board.display(1, false); 
 
    std::string wait; 
    std::getline(std::cin, wait); 
    file_src_0->detach_recursively(); 
}