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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
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241
third_party/aom/av1/encoder/block.h
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third_party/aom/av1/encoder/block.h
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/*
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* Copyright (c) 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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#ifndef AV1_ENCODER_BLOCK_H_
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#define AV1_ENCODER_BLOCK_H_
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#include "av1/common/entropymv.h"
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#include "av1/common/entropy.h"
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#if CONFIG_PVQ
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#include "av1/encoder/encint.h"
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#endif
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#if CONFIG_REF_MV
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#include "av1/common/mvref_common.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if CONFIG_PVQ
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// Maximum possible # of tx blocks in luma plane, which is currently 256,
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// since there can be 16x16 of 4x4 tx.
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#define MAX_PVQ_BLOCKS_IN_SB (MAX_SB_SQUARE >> 2 * OD_LOG_BSIZE0)
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#endif
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typedef struct {
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unsigned int sse;
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int sum;
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unsigned int var;
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} DIFF;
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typedef struct macroblock_plane {
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DECLARE_ALIGNED(16, int16_t, src_diff[MAX_SB_SQUARE]);
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#if CONFIG_PVQ
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DECLARE_ALIGNED(16, int16_t, src_int16[MAX_SB_SQUARE]);
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#endif
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tran_low_t *qcoeff;
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tran_low_t *coeff;
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uint16_t *eobs;
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#if CONFIG_LV_MAP
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uint8_t *txb_entropy_ctx;
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#endif
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struct buf_2d src;
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// Quantizer setings
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const int16_t *quant_fp;
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const int16_t *round_fp;
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const int16_t *quant;
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const int16_t *quant_shift;
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const int16_t *zbin;
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const int16_t *round;
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#if CONFIG_NEW_QUANT
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const cuml_bins_type_nuq *cuml_bins_nuq[QUANT_PROFILES];
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#endif // CONFIG_NEW_QUANT
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} MACROBLOCK_PLANE;
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/* The [2] dimension is for whether we skip the EOB node (i.e. if previous
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* coefficient in this block was zero) or not. */
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typedef unsigned int av1_coeff_cost[PLANE_TYPES][REF_TYPES][COEF_BANDS][2]
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[COEFF_CONTEXTS][ENTROPY_TOKENS];
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typedef struct {
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int_mv ref_mvs[MODE_CTX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
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int16_t mode_context[MODE_CTX_REF_FRAMES];
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#if CONFIG_LV_MAP
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// TODO(angiebird): Reduce the buffer size according to sb_type
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tran_low_t tcoeff[MAX_MB_PLANE][MAX_SB_SQUARE];
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uint16_t eobs[MAX_MB_PLANE][MAX_SB_SQUARE / (TX_SIZE_W_MIN * TX_SIZE_H_MIN)];
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uint8_t txb_skip_ctx[MAX_MB_PLANE]
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[MAX_SB_SQUARE / (TX_SIZE_W_MIN * TX_SIZE_H_MIN)];
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int dc_sign_ctx[MAX_MB_PLANE]
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[MAX_SB_SQUARE / (TX_SIZE_W_MIN * TX_SIZE_H_MIN)];
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#endif
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#if CONFIG_REF_MV
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uint8_t ref_mv_count[MODE_CTX_REF_FRAMES];
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CANDIDATE_MV ref_mv_stack[MODE_CTX_REF_FRAMES][MAX_REF_MV_STACK_SIZE];
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#if CONFIG_EXT_INTER
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int16_t compound_mode_context[MODE_CTX_REF_FRAMES];
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#endif // CONFIG_EXT_INTER
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#endif
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} MB_MODE_INFO_EXT;
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typedef struct {
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int col_min;
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int col_max;
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int row_min;
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int row_max;
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} MvLimits;
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#if CONFIG_PALETTE
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typedef struct {
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uint8_t best_palette_color_map[MAX_SB_SQUARE];
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float kmeans_data_buf[2 * MAX_SB_SQUARE];
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} PALETTE_BUFFER;
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#endif // CONFIG_PALETTE
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typedef struct macroblock MACROBLOCK;
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struct macroblock {
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struct macroblock_plane plane[MAX_MB_PLANE];
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MACROBLOCKD e_mbd;
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MB_MODE_INFO_EXT *mbmi_ext;
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int skip_block;
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int qindex;
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// The equivalent error at the current rdmult of one whole bit (not one
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// bitcost unit).
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int errorperbit;
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// The equivalend SAD error of one (whole) bit at the current quantizer
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// for large blocks.
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int sadperbit16;
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// The equivalend SAD error of one (whole) bit at the current quantizer
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// for sub-8x8 blocks.
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int sadperbit4;
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int rddiv;
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int rdmult;
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int mb_energy;
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int *m_search_count_ptr;
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int *ex_search_count_ptr;
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#if CONFIG_VAR_TX
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unsigned int txb_split_count;
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#endif
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// These are set to their default values at the beginning, and then adjusted
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// further in the encoding process.
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BLOCK_SIZE min_partition_size;
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BLOCK_SIZE max_partition_size;
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int mv_best_ref_index[TOTAL_REFS_PER_FRAME];
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unsigned int max_mv_context[TOTAL_REFS_PER_FRAME];
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unsigned int source_variance;
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unsigned int pred_sse[TOTAL_REFS_PER_FRAME];
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int pred_mv_sad[TOTAL_REFS_PER_FRAME];
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#if CONFIG_REF_MV
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int *nmvjointcost;
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int nmv_vec_cost[NMV_CONTEXTS][MV_JOINTS];
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int *nmvcost[NMV_CONTEXTS][2];
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int *nmvcost_hp[NMV_CONTEXTS][2];
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int **mv_cost_stack[NMV_CONTEXTS];
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int *nmvjointsadcost;
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#else
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int nmvjointcost[MV_JOINTS];
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int *nmvcost[2];
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int *nmvcost_hp[2];
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int nmvjointsadcost[MV_JOINTS];
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#endif
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int **mvcost;
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int *nmvsadcost[2];
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int *nmvsadcost_hp[2];
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int **mvsadcost;
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#if CONFIG_MOTION_VAR
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int32_t *wsrc_buf;
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int32_t *mask_buf;
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#endif // CONFIG_MOTION_VAR
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#if CONFIG_PALETTE
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PALETTE_BUFFER *palette_buffer;
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#endif // CONFIG_PALETTE
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// These define limits to motion vector components to prevent them
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// from extending outside the UMV borders
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MvLimits mv_limits;
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#if CONFIG_VAR_TX
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uint8_t blk_skip[MAX_MB_PLANE][MAX_MIB_SIZE * MAX_MIB_SIZE * 8];
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#if CONFIG_REF_MV
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uint8_t blk_skip_drl[MAX_MB_PLANE][MAX_MIB_SIZE * MAX_MIB_SIZE * 8];
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#endif
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#endif
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int skip;
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#if CONFIG_CB4X4
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int skip_chroma_rd;
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#endif
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// note that token_costs is the cost when eob node is skipped
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av1_coeff_cost token_costs[TX_SIZES];
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int optimize;
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// Used to store sub partition's choices.
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MV pred_mv[TOTAL_REFS_PER_FRAME];
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// Store the best motion vector during motion search
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int_mv best_mv;
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// Store the second best motion vector during full-pixel motion search
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int_mv second_best_mv;
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// use default transform and skip transform type search for intra modes
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int use_default_intra_tx_type;
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// use default transform and skip transform type search for inter modes
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int use_default_inter_tx_type;
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#if CONFIG_PVQ
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int rate;
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// 1 if neither AC nor DC is coded. Only used during RDO.
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int pvq_skip[MAX_MB_PLANE];
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PVQ_QUEUE *pvq_q;
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// Storage for PVQ tx block encodings in a superblock.
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// There can be max 16x16 of 4x4 blocks (and YUV) encode by PVQ
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// 256 is the max # of 4x4 blocks in a SB (64x64), which comes from:
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// 1) Since PVQ is applied to each trasnform-ed block
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// 2) 4x4 is the smallest tx size in AV1
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// 3) AV1 allows using smaller tx size than block (i.e. partition) size
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// TODO(yushin) : The memory usage could be improved a lot, since this has
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// storage for 10 bands and 128 coefficients for every 4x4 block,
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PVQ_INFO pvq[MAX_PVQ_BLOCKS_IN_SB][MAX_MB_PLANE];
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daala_enc_ctx daala_enc;
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int pvq_speed;
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int pvq_coded; // Indicates whether pvq_info needs be stored to tokenize
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#endif
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#if CONFIG_DAALA_DIST
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// Keep rate of each 4x4 block in the current macroblock during RDO
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// This is needed when using the 8x8 Daala distortion metric during RDO,
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// because it evaluates distortion in a different order than the underlying
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// 4x4 blocks are coded.
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int rate_4x4[256];
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#endif
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#if CONFIG_CFL
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// Whether luma needs to be stored during RDO.
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int cfl_store_y;
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#endif
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};
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_ENCODER_BLOCK_H_
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