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wangrong

2025-03-19 291afb9c81aae1d15d9e3edcea618d0a2e1fc5a6

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#ifdef VP_WITH_TRT 
#include "vp_trt_yolov8_classifier.h" 
 
namespace vp_nodes { 
    vp_trt_yolov8_classifier::vp_trt_yolov8_classifier(std::string node_name,  
                                                        std::string model_path,  
                                                        std::string labels_path,   
                                                        std::vector<int> p_class_ids_applied_to, 
                                                        int min_width_applied_to, int min_height_applied_to): 
                                                        vp_secondary_infer_node(node_name, "", "", labels_path, 1, 1, 1, p_class_ids_applied_to, min_width_applied_to, min_height_applied_to) { 
        yolov8_classifier = std::make_shared<trt_yolov8::trt_yolov8_classifier>(model_path); 
        this->initialized(); 
    } 
     
    vp_trt_yolov8_classifier::~vp_trt_yolov8_classifier() { 
        deinitialized(); 
    } 
 
    void vp_trt_yolov8_classifier::run_infer_combinations(const std::vector<std::shared_ptr<vp_objects::vp_frame_meta>>& frame_meta_with_batch) { 
        assert(frame_meta_with_batch.size() == 1); 
        std::vector<cv::Mat> mats_to_infer; 
 
        // start 
        auto start_time = std::chrono::system_clock::now(); 
 
        // prepare data, as same as base class 
        vp_secondary_infer_node::prepare(frame_meta_with_batch, mats_to_infer); 
        auto prepare_time = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now() - start_time); 
 
        // infer using trt_vehicle library 
        start_time = std::chrono::system_clock::now(); 
        std::vector<std::vector<Classification>> classidications; 
        yolov8_classifier->classify(mats_to_infer, classidications); 
 
        auto& frame_meta = frame_meta_with_batch[0]; 
        auto index = 0; 
        for (int i = 0; i < classidications.size(); i++) { 
            for (int j = index; j < frame_meta->targets.size(); j++) { 
                // need apply or not? 
                if (!need_apply(frame_meta->targets[j]->primary_class_id, frame_meta->targets[j]->width, frame_meta->targets[j]->height)) { 
                    // continue as its primary_class_id is not in p_class_ids_applied_to 
                    continue; 
                } 
 
                // update back to frame meta 
                frame_meta->targets[j]->secondary_class_ids.push_back(classidications[i][0].class_id); 
                frame_meta->targets[j]->secondary_scores.push_back(classidications[i][0].conf); 
                auto label = labels.size() == 0 ? "" : labels[classidications[i][0].class_id]; 
                frame_meta->targets[j]->secondary_labels.push_back(label); 
 
                // break as we found the right target! 
                index = j + 1; 
                break; 
            } 
        } 
        auto infer_time = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now() - start_time); 
 
        // can not calculate preprocess time and postprocess time, set 0 by default. 
        vp_infer_node::infer_combinations_time_cost(mats_to_infer.size(), prepare_time.count(), 0, infer_time.count(), 0); 
    } 
 
    void vp_trt_yolov8_classifier::postprocess(const std::vector<cv::Mat>& raw_outputs, const std::vector<std::shared_ptr<vp_objects::vp_frame_meta>>& frame_meta_with_batch) { 
 
    } 
} 
#endif