be7e4e854c
-Updates by making use of spatial correlation. -Checks if the segment_id is same as above or left context and encodes only the update to the map instead of updating individual segment_ids. Change-Id: Ib861df97e8aa2b37516219eeddcdbaf552b6a249
303 lines
7.4 KiB
C
303 lines
7.4 KiB
C
/*
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* Copyright (c) 2010 The VP8 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 and patent
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* grant that can be found in the LICENSE file in the root of the source
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* tree. All contributing project authors may be found in the AUTHORS
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* file in the root of the source tree.
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*/
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#ifndef __INC_BLOCKD_H
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#define __INC_BLOCKD_H
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void vpx_log(const char *format, ...);
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#include "vpx_ports/config.h"
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#include "vpx_scale/yv12config.h"
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#include "mv.h"
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#include "treecoder.h"
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#include "subpixel.h"
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#include "vpx_ports/mem.h"
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#define TRUE 1
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#define FALSE 0
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//#define DCPRED 1
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#define DCPREDSIMTHRESH 0
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#define DCPREDCNTTHRESH 3
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#define Y1CONTEXT 0
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#define UCONTEXT 1
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#define VCONTEXT 2
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#define Y2CONTEXT 3
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#define MB_FEATURE_TREE_PROBS 3
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#define MAX_MB_SEGMENTS 4
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#define MAX_REF_LF_DELTAS 4
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#define MAX_MODE_LF_DELTAS 4
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// Segment Feature Masks
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#define SEGMENT_DELTADATA 0
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#define SEGMENT_ABSDATA 1
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typedef struct
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{
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int r, c;
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} POS;
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typedef int ENTROPY_CONTEXT;
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typedef struct
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{
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ENTROPY_CONTEXT l[4];
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ENTROPY_CONTEXT a[4];
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} TEMP_CONTEXT;
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extern void vp8_setup_temp_context(TEMP_CONTEXT *t, ENTROPY_CONTEXT *a, ENTROPY_CONTEXT *l, int count);
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extern const int vp8_block2left[25];
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extern const int vp8_block2above[25];
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extern const int vp8_block2type[25];
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extern const int vp8_block2context[25];
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#define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
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Dest = ((A)!=0) + ((B)!=0);
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typedef enum
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{
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KEY_FRAME = 0,
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INTER_FRAME = 1
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} FRAME_TYPE;
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typedef enum
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{
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DC_PRED, // average of above and left pixels
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V_PRED, // vertical prediction
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H_PRED, // horizontal prediction
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TM_PRED, // Truemotion prediction
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B_PRED, // block based prediction, each block has its own prediction mode
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NEARESTMV,
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NEARMV,
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ZEROMV,
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NEWMV,
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SPLITMV,
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MB_MODE_COUNT
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} MB_PREDICTION_MODE;
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// Macroblock level features
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typedef enum
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{
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MB_LVL_ALT_Q = 0, // Use alternate Quantizer ....
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MB_LVL_ALT_LF = 1, // Use alternate loop filter value...
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MB_LVL_MAX = 2, // Number of MB level features supported
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} MB_LVL_FEATURES;
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// Segment Feature Masks
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#define SEGMENT_ALTQ 0x01
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#define SEGMENT_ALT_LF 0x02
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#define VP8_YMODES (B_PRED + 1)
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#define VP8_UV_MODES (TM_PRED + 1)
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#define VP8_MVREFS (1 + SPLITMV - NEARESTMV)
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typedef enum
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{
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B_DC_PRED, // average of above and left pixels
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B_TM_PRED,
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B_VE_PRED, // vertical prediction
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B_HE_PRED, // horizontal prediction
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B_LD_PRED,
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B_RD_PRED,
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B_VR_PRED,
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B_VL_PRED,
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B_HD_PRED,
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B_HU_PRED,
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LEFT4X4,
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ABOVE4X4,
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ZERO4X4,
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NEW4X4,
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B_MODE_COUNT
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} B_PREDICTION_MODE;
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#define VP8_BINTRAMODES (B_HU_PRED + 1) /* 10 */
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#define VP8_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
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/* For keyframes, intra block modes are predicted by the (already decoded)
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modes for the Y blocks to the left and above us; for interframes, there
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is a single probability table. */
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typedef struct
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{
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B_PREDICTION_MODE mode;
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union
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{
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int as_int;
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MV as_mv;
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} mv;
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} B_MODE_INFO;
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typedef enum
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{
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INTRA_FRAME = 0,
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LAST_FRAME = 1,
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GOLDEN_FRAME = 2,
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ALTREF_FRAME = 3,
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MAX_REF_FRAMES = 4
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} MV_REFERENCE_FRAME;
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typedef struct
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{
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MB_PREDICTION_MODE mode, uv_mode;
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MV_REFERENCE_FRAME ref_frame;
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union
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{
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int as_int;
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MV as_mv;
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} mv;
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int partitioning;
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int partition_count;
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int mb_skip_coeff; //does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens
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int dc_diff;
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unsigned char segment_id; // Which set of segmentation parameters should be used for this MB
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int force_no_skip;
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B_MODE_INFO partition_bmi[16];
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} MB_MODE_INFO;
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typedef struct
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{
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MB_MODE_INFO mbmi;
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B_MODE_INFO bmi[16];
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} MODE_INFO;
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typedef struct
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{
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short *qcoeff;
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short *dqcoeff;
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unsigned char *predictor;
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short *diff;
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short *reference;
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short(*dequant)[4];
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// 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries
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unsigned char **base_pre;
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int pre;
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int pre_stride;
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unsigned char **base_dst;
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int dst;
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int dst_stride;
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int eob;
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B_MODE_INFO bmi;
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} BLOCKD;
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typedef struct
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{
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DECLARE_ALIGNED(16, short, diff[400]); // from idct diff
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DECLARE_ALIGNED(16, unsigned char, predictor[384]);
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DECLARE_ALIGNED(16, short, reference[384]);
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DECLARE_ALIGNED(16, short, qcoeff[400]);
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DECLARE_ALIGNED(16, short, dqcoeff[400]);
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// 16 Y blocks, 4 U, 4 V, 1 DC 2nd order block, each with 16 entries.
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BLOCKD block[25];
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YV12_BUFFER_CONFIG pre; // Filtered copy of previous frame reconstruction
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YV12_BUFFER_CONFIG dst;
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MODE_INFO *mode_info_context;
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MODE_INFO *mode_info;
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int mode_info_stride;
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FRAME_TYPE frame_type;
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MB_MODE_INFO mbmi;
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int up_available;
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int left_available;
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// Y,U,V,Y2
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ENTROPY_CONTEXT *above_context[4]; // row of context for each plane
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ENTROPY_CONTEXT(*left_context)[4]; // (up to) 4 contexts ""
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// 0 indicates segmentation at MB level is not enabled. Otherwise the individual bits indicate which features are active.
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unsigned char segmentation_enabled;
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// 0 (do not update) 1 (update) the macroblock segmentation map.
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unsigned char update_mb_segmentation_map;
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// 0 (do not update) 1 (update) the macroblock segmentation feature data.
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unsigned char update_mb_segmentation_data;
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// 0 (do not update) 1 (update) the macroblock segmentation feature data.
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unsigned char mb_segement_abs_delta;
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// Per frame flags that define which MB level features (such as quantizer or loop filter level)
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// are enabled and when enabled the proabilities used to decode the per MB flags in MB_MODE_INFO
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#if CONFIG_SEGMENTATION
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vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS + 3]; // Probability Tree used to code Segment number
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#else
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vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS];
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#endif
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signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS]; // Segment parameters
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// mode_based Loop filter adjustment
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unsigned char mode_ref_lf_delta_enabled;
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unsigned char mode_ref_lf_delta_update;
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// Delta values have the range +/- MAX_LOOP_FILTER
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//char ref_lf_deltas[MAX_REF_LF_DELTAS]; // 0 = Intra, Last, GF, ARF
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//char mode_lf_deltas[MAX_MODE_LF_DELTAS]; // 0 = BPRED, ZERO_MV, MV, SPLIT
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signed char ref_lf_deltas[MAX_REF_LF_DELTAS]; // 0 = Intra, Last, GF, ARF
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signed char mode_lf_deltas[MAX_MODE_LF_DELTAS]; // 0 = BPRED, ZERO_MV, MV, SPLIT
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// Distance of MB away from frame edges
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int mb_to_left_edge;
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int mb_to_right_edge;
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int mb_to_top_edge;
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int mb_to_bottom_edge;
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//char * gf_active_ptr;
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signed char *gf_active_ptr;
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unsigned int frames_since_golden;
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unsigned int frames_till_alt_ref_frame;
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vp8_subpix_fn_t subpixel_predict;
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vp8_subpix_fn_t subpixel_predict8x4;
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vp8_subpix_fn_t subpixel_predict8x8;
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vp8_subpix_fn_t subpixel_predict16x16;
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void *current_bc;
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#if CONFIG_RUNTIME_CPU_DETECT
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struct VP8_COMMON_RTCD *rtcd;
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#endif
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} MACROBLOCKD;
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extern void vp8_build_block_doffsets(MACROBLOCKD *x);
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extern void vp8_setup_block_dptrs(MACROBLOCKD *x);
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#endif /* __INC_BLOCKD_H */
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