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#include "vp_ba_stop_node.h"
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namespace vp_nodes {
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vp_ba_stop_node::vp_ba_stop_node(std::string node_name,
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std::map<int, std::vector<vp_objects::vp_point>> stop_regions,
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bool need_record_image,
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bool need_record_video):
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vp_node(node_name), all_stop_regions(stop_regions), need_record_image(need_record_image), need_record_video(need_record_video) {
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VP_INFO(vp_utils::string_format("[%s] %s", node_name.c_str(), to_string().c_str()));
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this->initialized();
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}
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vp_ba_stop_node::~vp_ba_stop_node() {
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deinitialized();
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}
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std::string vp_ba_stop_node::to_string() {
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/*
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* return vertexs of all stop regions
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* [channel0: x1,y1 x2,y2 ...][channel1: x1,y1 x2,y2 ...]...
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*/
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std::stringstream ss;
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for(auto& r: all_stop_regions) {
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ss << "[channel" << r.first << ":";
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for(auto& p: r.second) {
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ss << " " << p.x << "," << p.y;
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}
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ss << "]";
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}
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return ss.str();
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}
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bool vp_ba_stop_node::point_in_poly(vp_objects::vp_point p, std::vector<vp_objects::vp_point> region) {
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int i, j, c = 0;
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int nvert = region.size();
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for (i = 0, j = nvert-1; i < nvert; j = i++) {
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if (((region[i].y > p.y) != (region[j].y > p.y)) &&
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(p.x < (region[j].x - region[i].x) * (p.y - region[i].y)
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/ (region[j].y - region[i].y) + region[i].x))
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c = !c;
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}
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return c;
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}
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std::shared_ptr<vp_objects::vp_meta> vp_ba_stop_node::handle_frame_meta(std::shared_ptr<vp_objects::vp_frame_meta> meta) {
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// if need applied on current channel or not
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if (all_stop_regions.count(meta->channel_index) == 0) {
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return meta;
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}
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// for current channel
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auto& stop_region = all_stop_regions[meta->channel_index];
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auto& stop_checking_status = all_stop_checking_status[meta->channel_index];
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// for vp_frame_target only
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std::vector<int> hit_traget_ids;
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for (auto& target : meta->targets) {
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auto len = target->tracks.size();
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auto loc = target->get_rect().track_point();
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// target has been tracked AND tracked enough frames
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if (len < check_interval_frames || target->track_id < 0) {
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continue;
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}
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// if target inside of stop region or not
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if (!point_in_poly(loc, stop_region)) {
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continue;
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}
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auto pre_loc = target->tracks[len - check_interval_frames].track_point();
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if (pre_loc.distance_with(loc) <= check_max_distance) {
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stop_checking_status[target->track_id]++;
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hit_traget_ids.push_back(target->track_id);
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}
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}
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for (auto i = stop_checking_status.begin(); i != stop_checking_status.end();) {
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if (std::find(hit_traget_ids.begin(), hit_traget_ids.end(), i->first) == hit_traget_ids.end()) {
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// statisfy unstop condition
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if (i->second >= check_min_hit_frames) {
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std::vector<int> involve_targets;
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involve_targets.push_back(i->first);
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// send record image and record video signal, recording actions would occur if record nodes exist in pipeline
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std::string image_file_name_without_ext = ""; // empty means no recording image
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std::string video_file_name_without_ext = ""; // empty means no recording video
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// send image record control meta
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if (need_record_image) {
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image_file_name_without_ext = vp_utils::time_format(NOW, "unstop_image__<year><mon><day><hour><min><sec><mili>");
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auto image_record_control_meta = std::make_shared<vp_objects::vp_image_record_control_meta>(meta->channel_index, image_file_name_without_ext, true);
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pendding_meta(image_record_control_meta);
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}
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// send video record control meta
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if (need_record_video) {
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video_file_name_without_ext = vp_utils::time_format(NOW, "unstop_video__<year><mon><day><hour><min><sec><mili>");
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auto video_record_control_meta = std::make_shared<vp_objects::vp_video_record_control_meta>(meta->channel_index, video_file_name_without_ext);
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pendding_meta(video_record_control_meta);
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}
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std::vector<vp_objects::vp_point> involve_region = stop_region;
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auto ba_result = std::make_shared<vp_objects::vp_ba_result>(vp_objects::vp_ba_type::UNSTOP,
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meta->channel_index,
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meta->frame_index,
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involve_targets,
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involve_region,
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"unstop", // meaningful label
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image_file_name_without_ext,
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video_file_name_without_ext);
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// fill back to frame meta
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meta->ba_results.push_back(ba_result);
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// info log
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VP_INFO(vp_utils::string_format("[%s] [channel %d] has found target unstop", node_name.c_str(), meta->channel_index));
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if (need_record_image || need_record_video) {
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VP_INFO(vp_utils::string_format("[%s] [channel %d] image & video record file names are: [%s & %s]", node_name.c_str(), meta->channel_index, image_file_name_without_ext.c_str(), video_file_name_without_ext.c_str()));
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}
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}
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// remove since it not satisfy stop condition
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i = stop_checking_status.erase(i);
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continue;
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}
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// equal means first time to satisfy stop condition
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if (i->second == check_min_hit_frames) {
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std::vector<int> involve_targets;
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involve_targets.push_back(i->first);
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// send record image and record video signal, recording actions would occur if record nodes exist in pipeline
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std::string image_file_name_without_ext = ""; // empty means no recording image
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std::string video_file_name_without_ext = ""; // empty means no recording video
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// send image record control meta
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if (need_record_image) {
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image_file_name_without_ext = vp_utils::time_format(NOW, "stop_image__<year><mon><day><hour><min><sec><mili>");
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auto image_record_control_meta = std::make_shared<vp_objects::vp_image_record_control_meta>(meta->channel_index, image_file_name_without_ext, true);
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pendding_meta(image_record_control_meta);
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}
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// send video record control meta
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if (need_record_video) {
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video_file_name_without_ext = vp_utils::time_format(NOW, "stop_video__<year><mon><day><hour><min><sec><mili>");
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auto video_record_control_meta = std::make_shared<vp_objects::vp_video_record_control_meta>(meta->channel_index, video_file_name_without_ext);
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pendding_meta(video_record_control_meta);
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}
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std::vector<vp_objects::vp_point> involve_region = stop_region;
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auto ba_result = std::make_shared<vp_objects::vp_ba_result>(vp_objects::vp_ba_type::STOP,
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meta->channel_index,
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meta->frame_index,
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involve_targets,
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involve_region,
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"stop", // meaningful label
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image_file_name_without_ext,
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video_file_name_without_ext);
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// fill back to frame meta
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meta->ba_results.push_back(ba_result);
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// info log
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VP_INFO(vp_utils::string_format("[%s] [channel %d] has found target stop", node_name.c_str(), meta->channel_index));
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if (need_record_image || need_record_video) {
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VP_INFO(vp_utils::string_format("[%s] [channel %d] image & video record file names are: [%s & %s]", node_name.c_str(), meta->channel_index, image_file_name_without_ext.c_str(), video_file_name_without_ext.c_str()));
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}
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}
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i++;
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}
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return meta;
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}
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}
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