From 68569dee1416593955c1570d638b3d9250b33012 Mon Sep 17 00:00:00 2001 From: trav90 Date: Mon, 15 Oct 2018 21:45:30 -0500 Subject: Import aom library This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36. --- third_party/aom/av1/encoder/corner_detect.c | 37 +++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 third_party/aom/av1/encoder/corner_detect.c (limited to 'third_party/aom/av1/encoder/corner_detect.c') diff --git a/third_party/aom/av1/encoder/corner_detect.c b/third_party/aom/av1/encoder/corner_detect.c new file mode 100644 index 000000000..e4c59dd9c --- /dev/null +++ b/third_party/aom/av1/encoder/corner_detect.c @@ -0,0 +1,37 @@ +/* + * 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 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; +} -- cgit v1.2.3