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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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50
third_party/aom/av1/common/pvq_state.c vendored Normal file
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/*
* Copyright (c) 2001-2016, 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 "av1/common/pvq_state.h"
#include "av1/common/odintrin.h"
void od_adapt_ctx_reset(od_adapt_ctx *adapt, int is_keyframe) {
int pli;
od_adapt_pvq_ctx_reset(&adapt->pvq, is_keyframe);
OD_CDFS_INIT_Q15(adapt->skip_cdf);
for (pli = 0; pli < OD_NPLANES_MAX; pli++) {
int i;
OD_CDFS_INIT_DYNAMIC(adapt->model_dc[pli].cdf);
for (i = 0; i < OD_TXSIZES; i++) {
int j;
adapt->ex_g[pli][i] = 8;
for (j = 0; j < 3; j++) {
adapt->ex_dc[pli][i][j] = pli > 0 ? 8 : 32768;
}
}
}
}
void od_init_skipped_coeffs(int16_t *d, int16_t *pred, int is_keyframe, int bo,
int n, int w) {
int i;
int j;
if (is_keyframe) {
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
/* skip DC */
if (i || j) d[bo + i * w + j] = 0;
}
}
} else {
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
d[bo + i * w + j] = pred[i * n + j];
}
}
}
}