add samples

wangrong

2025-03-19 291afb9c81aae1d15d9e3edcea618d0a2e1fc5a6

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#pragma once 
 
#include <fstream> 
#include <iostream> 
#include <opencv2/opencv.hpp> 
#include "include/cuda_utils.h" 
#include "include/logging.h" 
#include "include/model.h" 
#include "include/postprocess.h" 
#include "include/preprocess.h" 
#include "include/utils.h" 
 
namespace trt_yolov8 { 
    using namespace nvinfer1; 
    class trt_yolov8_detector 
    { 
    private: 
        void serialize_engine(std::string& wts_name, std::string& engine_name, int& is_p, std::string& sub_type, float& gd, 
                            float& gw, int& max_channels); 
        void deserialize_engine(std::string& engine_name, IRuntime** runtime, ICudaEngine** engine, 
                                IExecutionContext** context);  
        void prepare_buffer(ICudaEngine* engine, float** input_buffer_device, float** output_buffer_device, 
                            float** output_buffer_host, float** decode_ptr_host, float** decode_ptr_device, 
                            std::string cuda_post_process); 
        void infer(IExecutionContext& context, cudaStream_t& stream, void** buffers, float* output, int batchsize, 
                float* decode_ptr_host, float* decode_ptr_device, int model_bboxes, std::string cuda_post_process); 
 
        const int kOutputSize = kMaxNumOutputBbox * sizeof(Detection) / sizeof(float) + 1;   
        Logger gLogger; 
        cudaStream_t stream; 
        int model_bboxes;   
 
        // Deserialize the engine from file 
        nvinfer1::IRuntime* runtime = nullptr; 
        nvinfer1::ICudaEngine* engine = nullptr; 
        nvinfer1::IExecutionContext* context = nullptr; 
 
        std::string cuda_post_process = "c";   
    public: 
        trt_yolov8_detector(std::string model_path = ""); 
        ~trt_yolov8_detector(); 
 
        // detect 
        void detect(std::vector<cv::Mat> images, std::vector<std::vector<Detection>>& detections); 
 
        // serialize wts to plan file for target detect 
        // sub_type: [ n/s/m/l/x/n2/s2/m2/l2/x2/n6/s6/m6/l6/x6 ] 
        bool wts_2_engine(std::string wts_name, std::string engine_name, std::string sub_type); 
    }; 
}