53 строки
1.5 KiB
C
53 строки
1.5 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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/* clang-format off */
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#if !defined(_state_H)
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# define _state_H (1)
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typedef struct od_state od_state;
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typedef struct od_adapt_ctx od_adapt_ctx;
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# include "generic_code.h"
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# include "odintrin.h"
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# include "pvq.h"
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/*Adaptation speed of scalar Laplace encoding.*/
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# define OD_SCALAR_ADAPT_SPEED (4)
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struct od_adapt_ctx {
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/* Support for PVQ encode/decode */
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od_pvq_adapt_ctx pvq;
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generic_encoder model_dc[OD_NPLANES_MAX];
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int ex_dc[OD_NPLANES_MAX][OD_TXSIZES][3];
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int ex_g[OD_NPLANES_MAX][OD_TXSIZES];
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/* Joint skip flag for DC and AC */
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uint16_t skip_cdf[OD_TXSIZES*2][CDF_SIZE(4)];
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};
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struct od_state {
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od_adapt_ctx *adapt;
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unsigned char pvq_qm_q4[OD_NPLANES_MAX][OD_QM_SIZE];
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/* Quantization matrices and their inverses. */
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int16_t qm[OD_QM_BUFFER_SIZE];
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int16_t qm_inv[OD_QM_BUFFER_SIZE];
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};
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void od_adapt_ctx_reset(od_adapt_ctx *state, int is_keyframe);
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void od_init_skipped_coeffs(int16_t *d, int16_t *pred, int is_keyframe,
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int bo, int n, int w);
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#endif
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