/* * 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 #include #include #include #include #include "third_party/fastfeat/fast.h" #include "av1/encoder/corner_detect.h" // Fast_9 wrapper #define FAST_BARRIER 40 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; }