ref: 9f900a1c6404464edd23d2d43a3ab1f390ec8af7
dir: /vp8/common/blockd.h/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef __INC_BLOCKD_H
#define __INC_BLOCKD_H
void vpx_log(const char *format, ...);
#include "vpx_ports/config.h"
#include "vpx_scale/yv12config.h"
#include "mv.h"
#include "treecoder.h"
#include "subpixel.h"
#include "vpx_ports/mem.h"
#include "common.h"
#define TRUE 1
#define FALSE 0
//#define MODE_STATS
/*#define DCPRED 1*/
#define DCPREDSIMTHRESH 0
#define DCPREDCNTTHRESH 3
#define MB_FEATURE_TREE_PROBS 3
#define PREDICTION_PROBS 3
#if CONFIG_NEWENTROPY
#define MBSKIP_CONTEXTS 3
#endif
#define MAX_MB_SEGMENTS 4
#define MAX_REF_LF_DELTAS 4
#define MAX_MODE_LF_DELTAS 4
/* Segment Feature Masks */
#define SEGMENT_DELTADATA 0
#define SEGMENT_ABSDATA 1
typedef struct
{
int r, c;
} POS;
#define PLANE_TYPE_Y_NO_DC 0
#define PLANE_TYPE_Y2 1
#define PLANE_TYPE_UV 2
#define PLANE_TYPE_Y_WITH_DC 3
typedef char ENTROPY_CONTEXT;
typedef struct
{
ENTROPY_CONTEXT y1[4];
ENTROPY_CONTEXT u[2];
ENTROPY_CONTEXT v[2];
ENTROPY_CONTEXT y2;
} ENTROPY_CONTEXT_PLANES;
extern const unsigned char vp8_block2left[25];
extern const unsigned char vp8_block2above[25];
extern const unsigned char vp8_block2left_8x8[25];
extern const unsigned char vp8_block2above_8x8[25];
#define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
Dest = ((A)!=0) + ((B)!=0);
typedef enum
{
KEY_FRAME = 0,
INTER_FRAME = 1
} FRAME_TYPE;
typedef enum
{
DC_PRED, /* average of above and left pixels */
V_PRED, /* vertical prediction */
H_PRED, /* horizontal prediction */
TM_PRED, /* Truemotion prediction */
I8X8_PRED, /* 8x8 based prediction, each 8x8 has its own prediction mode */
B_PRED, /* block based prediction, each block has its own prediction mode */
NEARESTMV,
NEARMV,
ZEROMV,
NEWMV,
SPLITMV,
MB_MODE_COUNT
} MB_PREDICTION_MODE;
// Segment level features.
typedef enum
{
SEG_LVL_ALT_Q = 0, // Use alternate Quantizer ....
SEG_LVL_ALT_LF = 1, // Use alternate loop filter value...
SEG_LVL_REF_FRAME = 2, // Optional Segment reference frame
SEG_LVL_MODE = 3, // Optional Segment mode
SEG_LVL_EOB = 4, // EOB end stop marker.
SEG_LVL_TRANSFORM = 5, // Block transform size.
SEG_LVL_MAX = 6 // Number of MB level features supported
} SEG_LVL_FEATURES;
// Segment level features.
typedef enum
{
TX_4X4 = 0, // 4x4 dct transform
TX_8X8 = 1, // 8x8 dct transform
TX_SIZE_MAX = 2 // Number of differnt transforms avaialble
} TX_SIZE;
#define VP8_YMODES (B_PRED + 1)
#define VP8_UV_MODES (TM_PRED + 1)
#define VP8_I8X8_MODES (TM_PRED + 1)
#define VP8_MVREFS (1 + SPLITMV - NEARESTMV)
typedef enum
{
B_DC_PRED, /* average of above and left pixels */
B_TM_PRED,
B_VE_PRED, /* vertical prediction */
B_HE_PRED, /* horizontal prediction */
B_LD_PRED,
B_RD_PRED,
B_VR_PRED,
B_VL_PRED,
B_HD_PRED,
B_HU_PRED,
LEFT4X4,
ABOVE4X4,
ZERO4X4,
NEW4X4,
B_MODE_COUNT
} B_PREDICTION_MODE;
#define VP8_BINTRAMODES (B_HU_PRED + 1) /* 10 */
#define VP8_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
/* For keyframes, intra block modes are predicted by the (already decoded)
modes for the Y blocks to the left and above us; for interframes, there
is a single probability table. */
union b_mode_info
{
struct {
B_PREDICTION_MODE first;
#if CONFIG_COMP_INTRA_PRED
B_PREDICTION_MODE second;
#endif
} as_mode;
int_mv mv;
};
typedef enum
{
INTRA_FRAME = 0,
LAST_FRAME = 1,
GOLDEN_FRAME = 2,
ALTREF_FRAME = 3,
MAX_REF_FRAMES = 4
} MV_REFERENCE_FRAME;
typedef struct
{
MB_PREDICTION_MODE mode, uv_mode;
#if CONFIG_COMP_INTRA_PRED
MB_PREDICTION_MODE second_mode, second_uv_mode;
#endif
MV_REFERENCE_FRAME ref_frame, second_ref_frame;
TX_SIZE txfm_size;
int_mv mv, second_mv;
unsigned char partitioning;
unsigned char mb_skip_coeff; /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
unsigned char need_to_clamp_mvs;
unsigned char need_to_clamp_secondmv;
unsigned char segment_id; /* Which set of segmentation parameters should be used for this MB */
// Flags used for prediction status of various bistream signals
unsigned char seg_id_predicted;
unsigned char ref_predicted;
// Indicates if the mb is part of the image (1) vs border (0)
// This can be useful in determining whether the MB provides
// a valid predictor
unsigned char mb_in_image;
} MB_MODE_INFO;
typedef struct
{
MB_MODE_INFO mbmi;
union b_mode_info bmi[16];
} MODE_INFO;
typedef struct
{
short *qcoeff;
short *dqcoeff;
unsigned char *predictor;
short *diff;
short *dequant;
/* 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries */
unsigned char **base_pre;
int pre;
int pre_stride;
unsigned char **base_dst;
int dst;
int dst_stride;
int eob;
union b_mode_info bmi;
} BLOCKD;
typedef struct MacroBlockD
{
DECLARE_ALIGNED(16, short, diff[400]); /* from idct diff */
DECLARE_ALIGNED(16, unsigned char, predictor[384]);
DECLARE_ALIGNED(16, short, qcoeff[400]);
DECLARE_ALIGNED(16, short, dqcoeff[400]);
DECLARE_ALIGNED(16, char, eobs[25]);
/* 16 Y blocks, 4 U, 4 V, 1 DC 2nd order block, each with 16 entries. */
BLOCKD block[25];
int fullpixel_mask;
YV12_BUFFER_CONFIG pre; /* Filtered copy of previous frame reconstruction */
struct {
uint8_t *y_buffer, *u_buffer, *v_buffer;
} second_pre;
YV12_BUFFER_CONFIG dst;
MODE_INFO *prev_mode_info_context;
MODE_INFO *mode_info_context;
int mode_info_stride;
FRAME_TYPE frame_type;
int up_available;
int left_available;
/* Y,U,V,Y2 */
ENTROPY_CONTEXT_PLANES *above_context;
ENTROPY_CONTEXT_PLANES *left_context;
/* 0 indicates segmentation at MB level is not enabled. Otherwise the individual bits indicate which features are active. */
unsigned char segmentation_enabled;
/* 0 (do not update) 1 (update) the macroblock segmentation map. */
unsigned char update_mb_segmentation_map;
/* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
unsigned char update_mb_segmentation_data;
/* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
unsigned char mb_segment_abs_delta;
/* Per frame flags that define which MB level features (such as quantizer or loop filter level) */
/* are enabled and when enabled the proabilities used to decode the per MB flags in MB_MODE_INFO */
// Probability Tree used to code Segment number
vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS];
// Segment features
signed char segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
unsigned int segment_feature_mask[MAX_MB_SEGMENTS];
#if CONFIG_FEATUREUPDATES
// keep around the last set so we can figure out what updates...
unsigned int old_segment_feature_mask[MAX_MB_SEGMENTS];
signed char old_segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
#endif
/* mode_based Loop filter adjustment */
unsigned char mode_ref_lf_delta_enabled;
unsigned char mode_ref_lf_delta_update;
/* Delta values have the range +/- MAX_LOOP_FILTER */
signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS]; /* 0 = Intra, Last, GF, ARF */
signed char ref_lf_deltas[MAX_REF_LF_DELTAS]; /* 0 = Intra, Last, GF, ARF */
signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS]; /* 0 = BPRED, ZERO_MV, MV, SPLIT */
signed char mode_lf_deltas[MAX_MODE_LF_DELTAS]; /* 0 = BPRED, ZERO_MV, MV, SPLIT */
/* Distance of MB away from frame edges */
int mb_to_left_edge;
int mb_to_right_edge;
int mb_to_top_edge;
int mb_to_bottom_edge;
unsigned int frames_since_golden;
unsigned int frames_till_alt_ref_frame;
vp8_subpix_fn_t subpixel_predict;
vp8_subpix_fn_t subpixel_predict8x4;
vp8_subpix_fn_t subpixel_predict8x8;
vp8_subpix_fn_t subpixel_predict16x16;
vp8_subpix_fn_t subpixel_predict_avg8x8;
vp8_subpix_fn_t subpixel_predict_avg16x16;
#if CONFIG_HIGH_PRECISION_MV
int allow_high_precision_mv;
#endif /* CONFIG_HIGH_PRECISION_MV */
void *current_bc;
int corrupted;
#if ARCH_X86 || ARCH_X86_64
/* This is an intermediate buffer currently used in sub-pixel motion search
* to keep a copy of the reference area. This buffer can be used for other
* purpose.
*/
DECLARE_ALIGNED(32, unsigned char, y_buf[22*32]);
#endif
#if CONFIG_RUNTIME_CPU_DETECT
struct VP8_COMMON_RTCD *rtcd;
#endif
} MACROBLOCKD;
extern void vp8_build_block_doffsets(MACROBLOCKD *x);
extern void vp8_setup_block_dptrs(MACROBLOCKD *x);
static void update_blockd_bmi(MACROBLOCKD *xd)
{
int i;
int is_4x4;
is_4x4 = (xd->mode_info_context->mbmi.mode == SPLITMV) ||
(xd->mode_info_context->mbmi.mode == I8X8_PRED) ||
(xd->mode_info_context->mbmi.mode == B_PRED);
if (is_4x4)
{
for (i = 0; i < 16; i++)
{
xd->block[i].bmi = xd->mode_info_context->bmi[i];
}
}
}
#endif /* __INC_BLOCKD_H */