Files
VideoPipe/nodes/infers/vp_trt_yolov8_classifier.cpp
2026-06-03 12:43:14 +08:00

67 lines
3.3 KiB
C++

#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