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Import aom library

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This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90 2018-10-15 21:45:30 -05:00 • committed by Roy Tam
commit edc8d83307
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third_party/aom/aom_dsp/subtract.c vendored Normal file
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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 "./aom_config.h"
#include "./aom_dsp_rtcd.h"
#include "aom/aom_integer.h"
#include "aom_ports/mem.h"
void aom_subtract_block_c(int rows, int cols, int16_t *diff,
ptrdiff_t diff_stride, const uint8_t *src,
ptrdiff_t src_stride, const uint8_t *pred,
ptrdiff_t pred_stride) {
int r, c;
for (r = 0; r < rows; r++) {
for (c = 0; c < cols; c++) diff[c] = src[c] - pred[c];
diff += diff_stride;
pred += pred_stride;
src += src_stride;
}
}
#if CONFIG_HIGHBITDEPTH
void aom_highbd_subtract_block_c(int rows, int cols, int16_t *diff,
ptrdiff_t diff_stride, const uint8_t *src8,
ptrdiff_t src_stride, const uint8_t *pred8,
ptrdiff_t pred_stride, int bd) {
int r, c;
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
(void)bd;
for (r = 0; r < rows; r++) {
for (c = 0; c < cols; c++) {
diff[c] = src[c] - pred[c];
}
diff += diff_stride;
pred += pred_stride;
src += src_stride;
}
}
#endif // CONFIG_HIGHBITDEPTH