amlnn-model-playground/examples/yoloworld/cpp/src/main.cpp
2026-01-06 10:29:54 +08:00

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/*
* Copyright (C) 20242025 Amlogic, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <iostream>
#include <string>
#include <vector>
#include <chrono>
#include <tuple>
#include <opencv2/opencv.hpp>
#include "postprocess.h"
#include "model_loader.h"
const std::string DEFAULT_OUTPUT_PATH = "./result.jpg";
const int MODEL_INPUT_WIDTH = 640;
const int MODEL_INPUT_HEIGHT = 480;
const float SCORE_THRESHOLD = 0.4f;
const float NMS_THRESHOLD = 0.45f;
const std::vector<std::string> CLASS_NAMES = {
"handbag", "backpack", "wallet",
"watch", "necklace", "bracelet", "earrings", "finger ring", "sunglass", "hat", "shoes", "belt",
"makeup palette", "lipstick tube",
"car", "truck", "bicycle", "motorcycle",
"phone", "laptop", "camera", "wine bottle", "stuffed toy"
};
int main(int argc, char** argv) {
std::string model_path;
std::string image_path;
if (argc != 3)
{
printf("%s <model_path> <image_path>\n", argv[0]);
return -1;
}
if (argc > 1) model_path = argv[1];
if (argc > 2) image_path = argv[2];
std::cout << "YOLOWorld Native Demo" << std::endl;
std::cout << "Model: " << model_path << std::endl;
std::cout << "Image: " << image_path << std::endl;
std::cout << "Output: " << DEFAULT_OUTPUT_PATH << std::endl;
// 1. Load Image
cv::Mat img = cv::imread(image_path);
if (img.empty()) {
std::cerr << "Failed to load image from " << image_path << std::endl;
return -1;
}
// 2. Initialize Network
void* context = init_network(model_path.c_str());
if (!context) {
std::cerr << "Failed to initialize network." << std::endl;
return -1;
}
// 3. Preprocess
auto start_time = std::chrono::high_resolution_clock::now();
std::tuple<cv::Mat, float, std::tuple<int, int>> input_tuple =
preprocess(img, std::make_tuple(MODEL_INPUT_HEIGHT, MODEL_INPUT_WIDTH));
// 4. Run Network
void* output_ptr = run_network(context, {input_tuple});
if (!output_ptr) {
std::cerr << "Failed to run network." << std::endl;
uninit_network(context);
return -1;
}
nn_output* outdata = (nn_output*)output_ptr;
// 5. Postprocess
float* outbuf0 = (float*)outdata->out[0].buf;
float* outbuf1 = (float*)outdata->out[1].buf;
float* outbuf2 = (float*)outdata->out[2].buf;
int num_classes = CLASS_NAMES.size();
int channels = 87;
// Using standard stride logic assuming standard YOLOv8/World export
std::vector<Detection> detections = postprocess(
std::make_tuple(outbuf0, std::make_tuple(MODEL_INPUT_HEIGHT / 8, MODEL_INPUT_WIDTH / 8, channels), 8),
std::make_tuple(outbuf1, std::make_tuple(MODEL_INPUT_HEIGHT / 16, MODEL_INPUT_WIDTH / 16, channels), 16),
std::make_tuple(outbuf2, std::make_tuple(MODEL_INPUT_HEIGHT / 32, MODEL_INPUT_WIDTH / 32, channels), 32),
input_tuple,
SCORE_THRESHOLD,
NMS_THRESHOLD,
num_classes,
1 // reverse=1 for YOLOWorld format
);
auto end_time = std::chrono::high_resolution_clock::now();
std::chrono::duration<double, std::milli> inference_time = end_time - start_time;
std::cout << "Inference + Postprocess time: " << inference_time.count() << " ms" << std::endl;
std::cout << "Detections found: " << detections.size() << std::endl;
// 6. Draw and Save
cv::Mat result_img = draw_detections(img, detections, CLASS_NAMES);
cv::imwrite(DEFAULT_OUTPUT_PATH, result_img);
std::cout << "Result saved to " << DEFAULT_OUTPUT_PATH << std::endl;
// 7. Cleanup
uninit_network(context);
return 0;
}