#include "yolo.h"
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#include "yolo.hpp"
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#include <fstream>
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#include <vector>
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#include <string>
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#include <stdexcept>
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#include "struct.h"
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namespace cppyolo
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{
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static std::vector<std::string> names;
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static void objects_names_from_file(std::string filename){
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std::ifstream file(filename);
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if (!file.is_open()){
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printf("open %s file error\n", filename.c_str());
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return;
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}
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for(std::string line; getline(file, line);) names.push_back(line);
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printf("names count %d\n", names.size());
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}
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const char* obj_name_by_type(const int typ){
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if(names.empty() || typ < 0 || typ >= names.size()) return NULL;
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return names.at(typ).c_str();
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}
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void *init(const char *cfg, const char *weights, const char *name, const int gpu){
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if(!cfg || !weights || !name){
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printf("init Detector error\n");
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return false;
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}
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if(names.empty())
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objects_names_from_file(name);
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return new Detector(cfg, weights, gpu);
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}
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void release(void *handle){
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if (handle){
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Detector *d = (Detector*)handle;
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delete d;
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}
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}
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static image_t* buffer_to_image(const unsigned char *data, const int w, const int h, const int color_channel){
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int size = w*h;
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int size2 = size*2;
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int c = color_channel;
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image_t *img = new image_t;
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img->h = h;
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img->w = w;
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img->c = color_channel;
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img->data = (float*)calloc(h*w*c, sizeof(float));
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// image im = make_image(w, h, c);
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const unsigned char *srcData = data;
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int count = 0;
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switch(c){
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case 1:{
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for (; count < size; ){
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img->data[count] =
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img->data[w*h + count] =
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img->data[w*h*2 + count] =
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(float)(srcData[count])/255.0;
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++count;
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}
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break;
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}
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case 3:{
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float* desData = img->data;
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for(int i = 0;i<size;i++){
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*(desData) = *(srcData + 2) /255.0f;
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*(desData+size) = *(srcData + 1) /255.0f;
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*(desData+size2) = *(srcData) /255.0f;
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desData++;
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srcData+=3;
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}
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break;
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}
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default:
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printf("Channel number not supported.\n");
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break;
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}
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return img;
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}
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int detect(void *handle, const cIMAGE *img, const float thrsh, const bool use_mean, void **objs, int *objCount){
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if (!handle || !img || img->width <= 0 || img->height <= 0 || !img->data) return -1;
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Detector *d = (Detector*)handle;
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const int color_channel = img->channel;
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image_t *image = buffer_to_image(img->data, img->width, img->height, color_channel);
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std::vector<bbox_t> result_vec = d->detect(*image, thrsh, use_mean);
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d->free_image(*image);
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delete image;
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cObjInfo *infos = NULL;
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if(!result_vec.empty()){
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infos = (cObjInfo*)malloc(result_vec.size() * sizeof(cObjInfo));
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}
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int count = 0;
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for(auto &i : result_vec){
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cObjInfo info;
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info.typ = i.obj_id;
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info.prob = i.prob;
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info.rcObj.left = i.x;
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info.rcObj.top = i.y;
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info.rcObj.right = i.x+i.w;
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info.rcObj.bottom = i.y+i.h;
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infos[count++] = info;
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}
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*objCount = count;
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*objs = infos;
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return count;
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}
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} // namespace cppyolo
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