91 lines
4.0 KiB
C++
91 lines
4.0 KiB
C++
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#include "vp_ba_crossline_osd_node.h"
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namespace vp_nodes {
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vp_ba_crossline_osd_node::vp_ba_crossline_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_crossline_osd_node::~vp_ba_crossline_osd_node() {
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deinitialized();
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}
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std::shared_ptr<vp_objects::vp_meta> vp_ba_crossline_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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/* crossline draw for current channel */
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auto& total_crossline = all_total_crossline[meta->channel_index];
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auto& line = all_lines[meta->channel_index];
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// scan ba results and ONLY deal with crossline
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for (auto& i : meta->ba_results) {
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if (i->type == vp_objects::vp_ba_type::CROSSLINE) {
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// line has 2 points
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assert(i->involve_region_in_frame.size() == 2);
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line = vp_objects::vp_line(i->involve_region_in_frame[0], i->involve_region_in_frame[1]);
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total_crossline += 1;
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}
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}
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// draw crossline data
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cv::line(canvas, cv::Point(line.start.x, line.start.y), cv::Point(line.end.x, line.end.y), cv::Scalar(0, 255, 0), 2, cv::LINE_AA);
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cv::putText(canvas, vp_utils::string_format("total crossline targets: [%d]", total_crossline), cv::Point(20, 20), 1, 2, cv::Scalar(0, 0, 255), 2);
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return meta;
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}
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} |