aom/av1/common/pvq_state.h

54 строки
1.5 KiB
C

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