gstreamer/subprojects/gst-plugins-bad/ext/onnx/decoders/gstobjectdetectorutils.h

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/*
* GStreamer gstreamer-objectdetectorutils
* Copyright (C) 2023 Collabora Ltd
*
* gstobjectdetectorutils.h
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_OBJECT_DETECTOR_UTILS_H__
#define __GST_OBJECT_DETECTOR_UTILS_H__
#include <gst/gst.h>
#include <string>
#include <vector>
#include "gstml.h"
#include "tensor/gsttensormeta.h"
/* Object detection tensor id strings */
#define GST_MODEL_OBJECT_DETECTOR_BOXES "Gst.Model.ObjectDetector.Boxes"
#define GST_MODEL_OBJECT_DETECTOR_SCORES "Gst.Model.ObjectDetector.Scores"
#define GST_MODEL_OBJECT_DETECTOR_NUM_DETECTIONS "Gst.Model.ObjectDetector.NumDetections"
#define GST_MODEL_OBJECT_DETECTOR_CLASSES "Gst.Model.ObjectDetector.Classes"
/**
* GstMlBoundingBox:
*
* @label label
* @score detection confidence
* @x0 top left hand x coordinate
* @y0 top left hand y coordinate
* @width width
* @height height
*
* Since: 1.20
*/
struct GstMlBoundingBox {
GstMlBoundingBox(std::string lbl, float score, float _x0, float _y0,
float _width, float _height);
GstMlBoundingBox();
std::string label;
float score;
float x0;
float y0;
float width;
float height;
};
namespace GstObjectDetectorUtils {
const int GstObjectDetectorMaxNodes = 4;
class GstObjectDetectorUtils {
public:
GstObjectDetectorUtils(void);
~GstObjectDetectorUtils(void) = default;
std::vector < GstMlBoundingBox > run(int32_t w, int32_t h,
GstTensorMeta *tmeta,
std::string labelPath,
float scoreThreshold);
private:
template < typename T > std::vector < GstMlBoundingBox >
doRun(int32_t w, int32_t h,
GstTensorMeta *tmeta, std::string labelPath,
float scoreThreshold);
std::vector < std::string > ReadLabels(const std::string & labelsFile);
};
}
#endif /* __GST_OBJECT_DETECTOR_UTILS_H__ */