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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include "third_party/fastfeat/fast.h"
#include "av1/encoder/corner_detect.h"
// Fast_9 wrapper
#define FAST_BARRIER 18
int fast_corner_detect(unsigned char *buf, int width, int height, int stride,
int *points, int max_points) {
int num_points;
xy *const frm_corners_xy = fast9_detect_nonmax(buf, width, height, stride,
FAST_BARRIER, &num_points);
num_points = (num_points <= max_points ? num_points : max_points);
if (num_points > 0 && frm_corners_xy) {
memcpy(points, frm_corners_xy, sizeof(*frm_corners_xy) * num_points);
free(frm_corners_xy);
return num_points;
}
free(frm_corners_xy);
return 0;
}
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