54 строки
1.6 KiB
C
54 строки
1.6 KiB
C
/*
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* Copyright (c) 2001-2016, 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 "av1/common/pvq_state.h"
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#include "av1/common/odintrin.h"
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void od_adapt_ctx_reset(od_adapt_ctx *adapt, int is_keyframe) {
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int i;
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int pli;
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od_adapt_pvq_ctx_reset(&adapt->pvq, is_keyframe);
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adapt->skip_increment = 128;
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OD_CDFS_INIT(adapt->skip_cdf, adapt->skip_increment >> 2);
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for (pli = 0; pli < OD_NPLANES_MAX; pli++) {
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generic_model_init(&adapt->model_dc[pli]);
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for (i = 0; i < OD_TXSIZES; i++) {
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adapt->ex_g[pli][i] = 8;
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}
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for (i = 0; i < 4; i++) {
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int j;
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for (j = 0; j < 3; j++) {
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adapt->ex_dc[pli][i][j] = pli > 0 ? 8 : 32768;
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}
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}
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}
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}
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void od_init_skipped_coeffs(int16_t *d, int16_t *pred, int is_keyframe, int bo,
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int n, int w) {
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int i;
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int j;
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if (is_keyframe) {
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for (i = 0; i < n; i++) {
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for (j = 0; j < n; j++) {
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/* skip DC */
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if (i || j) d[bo + i * w + j] = 0;
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}
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}
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} else {
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for (i = 0; i < n; i++) {
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for (j = 0; j < n; j++) {
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d[bo + i * w + j] = pred[i * n + j];
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}
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}
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}
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}
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