| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_AV1_COMMON_GUIDED_QUADTREE_H_ |
| #define AOM_AV1_COMMON_GUIDED_QUADTREE_H_ |
| |
| #include <float.h> |
| #include "config/aom_config.h" |
| #include "aom/aom_integer.h" |
| #include "aom_ports/mem.h" |
| #include "av1/common/av1_common_int.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if CONFIG_CNN_GUIDED_QUADTREE |
| |
| #define GUIDED_A_BITS 4 |
| #define GUIDED_A_NUM_VALUES (1 << GUIDED_A_BITS) |
| #define GUIDED_A_MID (GUIDED_A_NUM_VALUES >> 1) |
| #define GUIDED_A_RANGE (GUIDED_A_NUM_VALUES - 1) |
| #define GUIDED_A_PAIR_BITS (GUIDED_A_BITS * 2 - 1) |
| #define GUIDED_QT_UNIT_SIZES_LOG2 2 |
| #define GUIDED_QT_UNIT_SIZES (1 << GUIDED_QT_UNIT_SIZES_LOG2) |
| |
| typedef enum { |
| GUIDED_QT_NONE, |
| GUIDED_QT_SPLIT, |
| GUIDED_QT_HORZ, |
| GUIDED_QT_VERT, |
| GUIDED_QT_TYPES, |
| GUIDED_QT_INVALID = -1 |
| } GuidedQuadTreePartitionType; |
| |
| int *get_quadparm_from_qindex(int qindex, int superres_denom, int is_intra_only, |
| int is_luma, int cnn_index); |
| |
| void quad_copy(const QUADInfo *src, QUADInfo *dst, struct AV1Common *cm); |
| |
| // Get the maximum possible length of unit info array based on dimensions, |
| // assuming each block uses split. |
| int quad_tree_get_max_unit_info_length(int width, int height, int unit_length); |
| |
| // Get the length of split info array based on dimensions. |
| int quad_tree_get_split_info_length(int width, int height, int unit_length); |
| |
| static INLINE int get_guided_norestore_ctx(int qindex, int superres_denom, |
| int is_intra_only) { |
| (void)qindex; |
| (void)is_intra_only; |
| if (is_intra_only) return 1; |
| if (superres_denom != SCALE_NUMERATOR) return 1; |
| return 0; |
| } |
| |
| // Get quad tree unit size. |
| static INLINE int quad_tree_get_unit_size(int width, int height, |
| int unit_index) { |
| const int max_dim = AOMMAX(width, height); |
| const int max_dim_pow_2_bits = 1 + get_msb(max_dim); |
| const int max_dim_pow_2 = 1 << max_dim_pow_2_bits; |
| const int max_unit_size = AOMMAX(AOMMIN(max_dim_pow_2, 2048), 256); |
| assert(unit_index >= 0 && unit_index < GUIDED_QT_UNIT_SIZES); |
| return max_unit_size >> unit_index; |
| } |
| |
| // Allocates buffers in 'quad_info' assuming 'quad_info->unit_index', |
| // 'quad_info->split_info_length' and 'quad_info->unit_info_length' are already |
| // initialized. |
| void av1_alloc_quadtree_struct(struct AV1Common *cm, QUADInfo *quad_info); |
| // Free buffers in 'quad_info'. |
| void av1_free_quadtree_struct(QUADInfo *quad_info); |
| #endif // CONFIG_CNN_GUIDED_QUADTREE |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| #endif // AOM_AV1_COMMON_CCSO_H_ |