e890c2579b
This patch sets up a quad_tree structure (pc_tree) for holding all of pick_mode_context data we use at any square block size during encoding or picking modes. That includes contexts for 2 horizontal and 2 vertical splits, one none, and pointers to 4 sub pc_tree nodes corresponding to split. It also includes a pointer to the current chosen partitioning. This replaces code that held an index for every level in the pick modes array including: sb_index, mb_index, b_index, ab_index. These were used as stateful indexes that pointed to the current pick mode contexts you had at each level stored in the following arrays array ab4x4_context[][][], sb8x4_context[][][], sb4x8_context[][][], sb8x8_context[][][], sb8x16_context[][][], sb16x8_context[][][], mb_context[][], sb32x16[][], sb16x32[], sb32_context[], sb32x64_context[], sb64x32_context[], sb64_context and the partitioning that had been stored in the following: b_partitioning, mb_partitioning, sb_partitioning, and sb64_partitioning. Prior to this patch before doing an encode you had to set the appropriate index for your block size ( switch statement), update it ( up to 3 lookups for the index array value) and then make your call into a recursive function at which point you'd have to call get_context which then had to do a switch statement based on the blocksize, and then up to 3 lookups based upon the block size to find the context to use. With the new code the context for the block size is passed around directly avoiding the extraneous switch statements and multi dimensional array look ups that were listed above. At any level in the search all of the contexts are local to the pc_tree you are working on (in?). In addition in most places code that used to call sub functions and then check if the block size was 4x4 and index was > 0 and return now don't preferring instead to call the right none function on the inside. Change-Id: I06e39318269d9af2ce37961b3f95e181b57f5ed9
188 lines
4.6 KiB
C
188 lines
4.6 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_ENCODER_VP9_BLOCK_H_
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#define VP9_ENCODER_VP9_BLOCK_H_
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#include "vp9/common/vp9_entropymv.h"
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#include "vp9/common/vp9_entropy.h"
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#include "vpx_ports/mem.h"
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#include "vp9/common/vp9_onyxc_int.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// motion search site
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typedef struct {
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MV mv;
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int offset;
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} search_site;
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// Structure to hold snapshot of coding context during the mode picking process
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typedef struct {
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MODE_INFO mic;
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uint8_t *zcoeff_blk;
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int16_t *coeff[MAX_MB_PLANE][3];
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int16_t *qcoeff[MAX_MB_PLANE][3];
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int16_t *dqcoeff[MAX_MB_PLANE][3];
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uint16_t *eobs[MAX_MB_PLANE][3];
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// dual buffer pointers, 0: in use, 1: best in store
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int16_t *coeff_pbuf[MAX_MB_PLANE][3];
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int16_t *qcoeff_pbuf[MAX_MB_PLANE][3];
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int16_t *dqcoeff_pbuf[MAX_MB_PLANE][3];
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uint16_t *eobs_pbuf[MAX_MB_PLANE][3];
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int is_coded;
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int num_4x4_blk;
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int skip;
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int_mv best_ref_mv[2];
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int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
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int rate;
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int distortion;
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int best_mode_index;
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int rddiv;
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int rdmult;
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int hybrid_pred_diff;
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int comp_pred_diff;
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int single_pred_diff;
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int64_t tx_rd_diff[TX_MODES];
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int64_t best_filter_diff[SWITCHABLE_FILTER_CONTEXTS];
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// motion vector cache for adaptive motion search control in partition
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// search loop
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int_mv pred_mv[MAX_REF_FRAMES];
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INTERP_FILTER pred_interp_filter;
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} PICK_MODE_CONTEXT;
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struct macroblock_plane {
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DECLARE_ALIGNED(16, int16_t, src_diff[64 * 64]);
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int16_t *qcoeff;
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int16_t *coeff;
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uint16_t *eobs;
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struct buf_2d src;
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// Quantizer setings
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int16_t *quant;
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int16_t *quant_shift;
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int16_t *zbin;
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int16_t *round;
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// Zbin Over Quant value
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int16_t zbin_extra;
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};
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typedef struct PC_TREE {
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int index;
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PARTITION_TYPE partitioning;
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BLOCK_SIZE block_size;
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PICK_MODE_CONTEXT none;
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PICK_MODE_CONTEXT horizontal[2];
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PICK_MODE_CONTEXT vertical[2];
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union {
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struct PC_TREE *split[4];
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PICK_MODE_CONTEXT *leaf_split[4];
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};
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} PC_TREE;
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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 vp9_coeff_cost[PLANE_TYPES][REF_TYPES][COEF_BANDS][2]
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[COEFF_CONTEXTS][ENTROPY_TOKENS];
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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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int skip_block;
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int select_txfm_size;
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int skip_recode;
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int skip_optimize;
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int q_index;
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search_site *ss;
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int ss_count;
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int searches_per_step;
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int errorperbit;
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int sadperbit16;
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int sadperbit4;
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int rddiv;
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int rdmult;
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unsigned int mb_energy;
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int mv_best_ref_index[MAX_REF_FRAMES];
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unsigned int max_mv_context[MAX_REF_FRAMES];
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unsigned int source_variance;
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unsigned int pred_sse[MAX_REF_FRAMES];
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int pred_mv_sad[MAX_REF_FRAMES];
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int nmvjointcost[MV_JOINTS];
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int nmvcosts[2][MV_VALS];
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int *nmvcost[2];
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int nmvcosts_hp[2][MV_VALS];
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int *nmvcost_hp[2];
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int **mvcost;
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int nmvjointsadcost[MV_JOINTS];
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int nmvsadcosts[2][MV_VALS];
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int *nmvsadcost[2];
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int nmvsadcosts_hp[2][MV_VALS];
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int *nmvsadcost_hp[2];
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int **mvsadcost;
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int mbmode_cost[INTRA_MODES];
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unsigned inter_mode_cost[INTER_MODE_CONTEXTS][INTER_MODES];
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int intra_uv_mode_cost[FRAME_TYPES][INTRA_MODES];
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int y_mode_costs[INTRA_MODES][INTRA_MODES][INTRA_MODES];
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int switchable_interp_costs[SWITCHABLE_FILTER_CONTEXTS][SWITCHABLE_FILTERS];
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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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int mv_col_min;
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int mv_col_max;
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int mv_row_min;
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int mv_row_max;
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uint8_t zcoeff_blk[TX_SIZES][256];
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int skip;
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int encode_breakout;
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int in_active_map;
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// note that token_costs is the cost when eob node is skipped
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vp9_coeff_cost token_costs[TX_SIZES];
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int optimize;
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// indicate if it is in the rd search loop or encoding process
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int use_lp32x32fdct;
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int skip_encode;
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// Used to store sub partition's choices.
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int_mv pred_mv[MAX_REF_FRAMES];
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PICK_MODE_CONTEXT *leaf_tree;
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PC_TREE *pc_tree;
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PC_TREE *pc_root;
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int partition_cost[PARTITION_CONTEXTS][PARTITION_TYPES];
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void (*fwd_txm4x4)(const int16_t *input, int16_t *output, int stride);
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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 // VP9_ENCODER_VP9_BLOCK_H_
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