sources/apps/sample_apps/deepstream-transfer-learning-app/image_meta_producer.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2020-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * 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.
 */
 
#pragma once
 
#include <sstream>
#include <iomanip>
#include <fstream>
#include <chrono>
#include <ctime>
#include "image_meta_consumer.h"
#include "concurrent_queue.h"
 
class ImageMetaProducer
{
public:
    // left: filepath for multiple file, right: file content
    typedef std::pair<std::string, std::string> string_pair;
    struct IPData
    {
        float confidence = 0.f;
        bool within_confidence;
        unsigned class_id = 0;
        unsigned current_frame = 0;
        unsigned video_stream_nb = 0;
        std::string class_name;
        std::string video_path;
        std::string image_full_frame_path_saved;
        std::string image_cropped_obj_path_saved;
        std::string datetime;
        unsigned img_height = 0;
        unsigned img_width = 0;
        unsigned img_top = 0;
        unsigned img_left = 0;
    };
 
    ImageMetaProducer(ImageMetaConsumer &ic);
    bool stack_obj_data(IPData &data);
    void send_and_flush_obj_data();
    void generate_image_full_frame_path(const unsigned stream_source_id,
                                        const std::string &datetime_iso8601);
    std::string get_image_full_frame_path_saved();
 
private:
 
    std::string make_csv_data(const IPData &data);
    std::string make_json_data(const IPData &data);
    std::string make_kitti_data(const IPData &data);
    std::string make_kitti_save_path() const;
 
    std::string image_full_frame_path_saved_;
    std::vector<std::string> obj_data_csv_;
    std::vector<std::string> obj_data_json_;
    std::vector<std::string> obj_data_kitti_;
    ImageMetaConsumer &ic_;
};