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#include "vp_ba_jam_osd_node.h"
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namespace vp_nodes {
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vp_ba_jam_osd_node::vp_ba_jam_osd_node(std::string node_name, std::string font): vp_node(node_name) {
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if (!font.empty()) {
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ft2 = cv::freetype::createFreeType2();
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ft2->loadFontData(font, 0);
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}
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this->initialized();
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}
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vp_ba_jam_osd_node::~vp_ba_jam_osd_node() {
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deinitialized();
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}
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std::shared_ptr<vp_objects::vp_meta> vp_ba_jam_osd_node::handle_frame_meta(std::shared_ptr<vp_objects::vp_frame_meta> meta) {
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// operations on osd_frame
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if (meta->osd_frame.empty()) {
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meta->osd_frame = meta->frame.clone();
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}
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auto& canvas = meta->osd_frame;
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// scan targets
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for (auto& i : meta->targets) {
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// track_id
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auto id = std::to_string(i->track_id);
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auto labels_to_display = i->primary_label;
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// tracked
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if (i->track_id != -1) {
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labels_to_display = "#" + id + " " + labels_to_display;
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}
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for (auto& label : i->secondary_labels) {
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labels_to_display += "|" + label;
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}
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// draw tracks if size>=2
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if (i->tracks.size() >= 2) {
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for (int n = 0; n < (i->tracks.size() - 1); n++) {
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auto p1 = i->tracks[n].track_point();
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auto p2 = i->tracks[n + 1].track_point();
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cv::line(canvas, cv::Point(p1.x, p1.y), cv::Point(p2.x, p2.y), cv::Scalar(0, 255, 255), 1, cv::LINE_AA);
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}
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}
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cv::rectangle(canvas, cv::Rect(i->x, i->y, i->width, i->height), cv::Scalar(255, 255, 0), 2);
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if (ft2 != nullptr) {
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ft2->putText(canvas, labels_to_display, cv::Point(i->x, i->y), 20, cv::Scalar(255, 0, 255), cv::FILLED, cv::LINE_AA, true);
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}
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else {
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//cv::putText(canvas, labels_to_display, cv::Point(i->x, i->y), 1, 1, cv::Scalar(255, 0, 255));
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int baseline = 0;
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auto size = cv::getTextSize(labels_to_display, 1, 1, 1, &baseline);
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vp_utils::put_text_at_center_of_rect(canvas, labels_to_display, cv::Rect(i->x, i->y - size.height, size.width, size.height), true, 1, 1, cv::Scalar(), cv::Scalar(179, 52, 255), cv::Scalar(179, 52, 255));
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}
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// scan sub targets
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for (auto& sub_target: i->sub_targets) {
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cv::rectangle(canvas, cv::Rect(sub_target->x, sub_target->y, sub_target->width, sub_target->height), cv::Scalar(255));
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if (ft2 != nullptr) {
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ft2->putText(canvas, sub_target->label, cv::Point(sub_target->x, sub_target->y), 20, cv::Scalar(0, 0, 255), cv::FILLED, cv::LINE_AA, true);
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}
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else {
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cv::putText(canvas, sub_target->label, cv::Point(sub_target->x, sub_target->y), 1, 1, cv::Scalar(0, 0, 255));
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}
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}
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}
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/* jam draw for current channel */
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auto& region = all_jam_regions[meta->channel_index];
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auto& jam_result = all_jam_results[meta->channel_index];
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auto& involve_ids = all_involve_ids[meta->channel_index];
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// scan ba results and ONLY deal with stop and unstop
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for (auto& i : meta->ba_results) {
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if (i->type == vp_objects::vp_ba_type::JAM) {
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region = i->involve_region_in_frame;
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involve_ids = i->involve_target_ids_in_frame;
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jam_result = true;
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}
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if (i->type == vp_objects::vp_ba_type::UNJAM) {
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region = i->involve_region_in_frame;
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involve_ids = i->involve_target_ids_in_frame; // not used later
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jam_result = false;
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}
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}
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// draw jam data
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auto poly_vertexs = [&]() {
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std::vector<cv::Point> vertexs;
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for(auto& p: region) {
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vertexs.push_back(cv::Point(p.x, p.y));
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}
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return vertexs;
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};
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if (jam_result) {
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cv::polylines(canvas, poly_vertexs(), true, cv::Scalar(0, 0, 255), 2, cv::LINE_AA); // region
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// targets in jan region, highlight
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auto targets = meta->get_targets_by_ids(involve_ids);
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for (auto& t: targets) {
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cv::rectangle(canvas, cv::Rect(t->x, t->y, t->width, t->height), cv::Scalar(0, 0, 255), 2, cv::LINE_AA);
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}
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}
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return meta;
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}
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}
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