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/aom_dsp/sum_squares.c | 40 +++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 third_party/aom/aom_dsp/sum_squares.c (limited to 'third_party/aom/aom_dsp/sum_squares.c') diff --git a/third_party/aom/aom_dsp/sum_squares.c b/third_party/aom/aom_dsp/sum_squares.c new file mode 100644 index 000000000..b9155fdc0 --- /dev/null +++ b/third_party/aom/aom_dsp/sum_squares.c @@ -0,0 +1,40 @@ +/* + * 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 "./aom_dsp_rtcd.h" + +uint64_t aom_sum_squares_2d_i16_c(const int16_t *src, int src_stride, int width, + int height) { + int r, c; + uint64_t ss = 0; + + for (r = 0; r < height; r++) { + for (c = 0; c < width; c++) { + const int16_t v = src[c]; + ss += v * v; + } + src += src_stride; + } + + return ss; +} + +uint64_t aom_sum_squares_i16_c(const int16_t *src, uint32_t n) { + uint64_t ss = 0; + do { + const int16_t v = *src++; + ss += v * v; + } while (--n); + + return ss; +} -- cgit v1.2.3