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/*
* Copyright (c) 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.
*/
#ifndef AOM_AV1_ENCODER_CONTEXT_TREE_H_
#define AOM_AV1_ENCODER_CONTEXT_TREE_H_
#include "av1/common/blockd.h"
#include "av1/encoder/block.h"
#ifdef __cplusplus
extern "C" {
#endif
struct AV1_COMP;
struct AV1Common;
struct ThreadData;
typedef enum {
// Search all the partition types in this plane.
SEARCH_FULL_PLANE = 0,
// Only search none_partition coding block.
NONE_PARTITION_PLANE = 1,
// Search all the partition types in this plane except split.
SEARCH_SAME_PLANE = 2,
// Skip search partition on this plane. Go split directly.
SPLIT_PLANE = 3,
} CB_TREE_SEARCH;
// Structure to hold snapshot of coding context during the mode picking process
typedef struct {
MB_MODE_INFO mic;
MB_MODE_INFO_EXT mbmi_ext;
uint8_t *color_index_map[2];
uint8_t *blk_skip;
tran_low_t *coeff[MAX_MB_PLANE];
tran_low_t *qcoeff[MAX_MB_PLANE];
tran_low_t *dqcoeff[MAX_MB_PLANE];
uint16_t *eobs[MAX_MB_PLANE];
uint8_t *txb_entropy_ctx[MAX_MB_PLANE];
int num_4x4_blk;
int skip;
// For current partition, only if all Y, U, and V transform blocks'
// coefficients are quantized to 0, skippable is set to 1.
int skippable;
int best_mode_index;
int hybrid_pred_diff;
int comp_pred_diff;
int single_pred_diff;
// Skip certain ref frames during RD search of rectangular partitions.
int skip_ref_frame_mask;
// TODO(jingning) Use RD_COST struct here instead. This involves a boarder
// scope of refactoring.
int rate;
int64_t dist;
int64_t rdcost;
int rd_mode_is_ready; // Flag to indicate whether rd pick mode decision has
// been made.
// motion vector cache for adaptive motion search control in partition
// search loop
MV pred_mv[REF_FRAMES];
InterpFilter pred_interp_filter;
PARTITION_TYPE partition;
} PICK_MODE_CONTEXT;
typedef struct {
int valid;
int split;
int skip;
int64_t rdcost;
int sub_block_split[4];
int sub_block_skip[4];
int64_t sub_block_rdcost[4];
} PC_TREE_STATS;
typedef struct PC_TREE {
int index;
PARTITION_TYPE partitioning;
BLOCK_SIZE block_size;
PICK_MODE_CONTEXT none;
PICK_MODE_CONTEXT horizontal[2];
PICK_MODE_CONTEXT vertical[2];
PICK_MODE_CONTEXT horizontala[3];
PICK_MODE_CONTEXT horizontalb[3];
PICK_MODE_CONTEXT verticala[3];
PICK_MODE_CONTEXT verticalb[3];
PICK_MODE_CONTEXT horizontal4[4];
PICK_MODE_CONTEXT vertical4[4];
CB_TREE_SEARCH cb_search_range;
struct PC_TREE *split[4];
PC_TREE_STATS pc_tree_stats;
} PC_TREE;
void av1_setup_pc_tree(struct AV1Common *cm, struct ThreadData *td);
void av1_free_pc_tree(struct ThreadData *td, const int num_planes);
void av1_copy_tree_context(PICK_MODE_CONTEXT *dst_ctx,
PICK_MODE_CONTEXT *src_ctx);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_ENCODER_CONTEXT_TREE_H_
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