41 строка
1.0 KiB
C
41 строка
1.0 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <assert.h>
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#include "./aom_dsp_rtcd.h"
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uint64_t aom_sum_squares_2d_i16_c(const int16_t *src, int src_stride,
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int size) {
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int r, c;
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uint64_t ss = 0;
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for (r = 0; r < size; r++) {
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for (c = 0; c < size; c++) {
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const int16_t v = src[c];
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ss += v * v;
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}
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src += src_stride;
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}
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return ss;
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}
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uint64_t aom_sum_squares_i16_c(const int16_t *src, uint32_t n) {
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uint64_t ss = 0;
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do {
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const int16_t v = *src++;
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ss += v * v;
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} while (--n);
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return ss;
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}
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