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vpx/vp9/common/vp9_blockd.h
Jim Bankoski 2b8dc065d1 google style guide include guards 
Change-Id: I2c252f3ddcc99e96c1f5d3dab8bcb25a2a3637ea
2012-11-30 07:30:59 -08:00

654 lines
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C
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/*
* 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 VP9_COMMON_VP9_BLOCKD_H_
#define VP9_COMMON_VP9_BLOCKD_H_
void vpx_log(const char *format, ...);
#include "vpx_ports/config.h"
#include "vpx_scale/yv12config.h"
#include "vp9/common/vp9_mv.h"
#include "vp9/common/vp9_treecoder.h"
#include "vp9/common/vp9_subpixel.h"
#include "vpx_ports/mem.h"
#include "vp9/common/vp9_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
#define MBSKIP_CONTEXTS 3
#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
#define MAX_MV_REFS 9
typedef struct {
int r, c;
} POS;
typedef enum PlaneType {
PLANE_TYPE_Y_NO_DC = 0,
PLANE_TYPE_Y2,
PLANE_TYPE_UV,
PLANE_TYPE_Y_WITH_DC,
} PLANE_TYPE;
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 vp9_block2left[25];
extern const unsigned char vp9_block2above[25];
extern const unsigned char vp9_block2left_8x8[25];
extern const unsigned char vp9_block2above_8x8[25];
#define VP9_COMBINEENTROPYCONTEXTS( Dest, A, B) \
Dest = ((A)!=0) + ((B)!=0);
typedef enum {
KEY_FRAME = 0,
INTER_FRAME = 1
} FRAME_TYPE;
typedef enum
{
SIXTAP = 0,
BILINEAR = 1,
EIGHTTAP = 2,
EIGHTTAP_SHARP = 3,
SWITCHABLE /* should be the last one */
} INTERPOLATIONFILTERTYPE;
typedef enum
{
DC_PRED, /* average of above and left pixels */
V_PRED, /* vertical prediction */
H_PRED, /* horizontal prediction */
D45_PRED, /* Directional 45 deg prediction [anti-clockwise from 0 deg hor] */
D135_PRED, /* Directional 135 deg prediction [anti-clockwise from 0 deg hor] */
D117_PRED, /* Directional 112 deg prediction [anti-clockwise from 0 deg hor] */
D153_PRED, /* Directional 157 deg prediction [anti-clockwise from 0 deg hor] */
D27_PRED, /* Directional 22 deg prediction [anti-clockwise from 0 deg hor] */
D63_PRED, /* Directional 67 deg prediction [anti-clockwise from 0 deg hor] */
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, // 4x4 dct transform
TX_8X8, // 8x8 dct transform
TX_16X16, // 16x16 dct transform
TX_SIZE_MAX // Number of different transforms available
} TX_SIZE;
typedef enum {
DCT_DCT = 0, // DCT in both horizontal and vertical
ADST_DCT = 1, // ADST in vertical, DCT in horizontal
DCT_ADST = 2, // DCT in vertical, ADST in horizontal
ADST_ADST = 3 // ADST in both directions
} TX_TYPE;
#define VP9_YMODES (B_PRED + 1)
#define VP9_UV_MODES (TM_PRED + 1)
#define VP9_I8X8_MODES (TM_PRED + 1)
#define VP9_I32X32_MODES (TM_PRED + 1)
#define VP9_MVREFS (1 + SPLITMV - NEARESTMV)
#if CONFIG_LOSSLESS
#define WHT_UPSCALE_FACTOR 3
#define Y2_WHT_UPSCALE_FACTOR 2
#endif
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,
#if CONFIG_NEWBINTRAMODES
B_CONTEXT_PRED,
#endif
LEFT4X4,
ABOVE4X4,
ZERO4X4,
NEW4X4,
B_MODE_COUNT
} B_PREDICTION_MODE;
#define VP9_BINTRAMODES (LEFT4X4)
#define VP9_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
#if CONFIG_NEWBINTRAMODES
/* The number of B_PRED intra modes that are replaced by B_CONTEXT_PRED */
#define CONTEXT_PRED_REPLACEMENTS 0
#define VP9_KF_BINTRAMODES (VP9_BINTRAMODES - 1)
#define VP9_NKF_BINTRAMODES (VP9_BINTRAMODES - CONTEXT_PRED_REPLACEMENTS)
#else
#define VP9_KF_BINTRAMODES (VP9_BINTRAMODES) /* 10 */
#define VP9_NKF_BINTRAMODES (VP9_BINTRAMODES) /* 10 */
#endif
typedef enum {
PARTITIONING_16X8 = 0,
PARTITIONING_8X16,
PARTITIONING_8X8,
PARTITIONING_4X4,
NB_PARTITIONINGS,
} SPLITMV_PARTITIONING_TYPE;
/* 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;
TX_TYPE tx_type;
#if CONFIG_COMP_INTRA_PRED
B_PREDICTION_MODE second;
#endif
#if CONFIG_NEWBINTRAMODES
B_PREDICTION_MODE context;
#endif
} as_mode;
struct {
int_mv first;
int_mv second;
} as_mv;
};
typedef enum {
NONE = -1,
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
#if CONFIG_COMP_INTERINTRA_PRED
MB_PREDICTION_MODE interintra_mode, interintra_uv_mode;
#endif
MV_REFERENCE_FRAME ref_frame, second_ref_frame;
TX_SIZE txfm_size;
int_mv mv[2]; // for each reference frame used
int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REFS];
int_mv best_mv, best_second_mv;
#if CONFIG_NEW_MVREF
int best_index, best_second_index;
#endif
int mb_mode_context[MAX_REF_FRAMES];
SPLITMV_PARTITIONING_TYPE 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;
#if CONFIG_PRED_FILTER
// Flag to turn prediction signal filter on(1)/off(0 ) at the MB level
unsigned int pred_filter_enabled;
#endif
INTERPOLATIONFILTERTYPE interp_filter;
#if CONFIG_SUPERBLOCKS
// FIXME need a SB array of 4 MB_MODE_INFOs that
// only needs one encoded_as_sb.
unsigned char encoded_as_sb;
#endif
} MB_MODE_INFO;
typedef struct {
MB_MODE_INFO mbmi;
union b_mode_info bmi[16];
} MODE_INFO;
typedef struct blockd {
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;
unsigned char **base_second_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, unsigned short, 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
vp9_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS];
#if CONFIG_NEW_MVREF
vp9_prob mb_mv_ref_id_probs[MAX_REF_FRAMES][3];
#endif
// Segment features
signed char segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
unsigned int segment_feature_mask[MAX_MB_SEGMENTS];
/* 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;
/* Inverse transform function pointers. */
void (*inv_xform4x4_1_x8)(short *input, short *output, int pitch);
void (*inv_xform4x4_x8)(short *input, short *output, int pitch);
void (*inv_walsh4x4_1)(short *in, short *out);
void (*inv_walsh4x4_lossless)(short *in, short *out);
vp9_subpix_fn_t subpixel_predict;
vp9_subpix_fn_t subpixel_predict8x4;
vp9_subpix_fn_t subpixel_predict8x8;
vp9_subpix_fn_t subpixel_predict16x16;
vp9_subpix_fn_t subpixel_predict_avg;
vp9_subpix_fn_t subpixel_predict_avg8x4;
vp9_subpix_fn_t subpixel_predict_avg8x8;
vp9_subpix_fn_t subpixel_predict_avg16x16;
int allow_high_precision_mv;
int corrupted;
#if !CONFIG_SUPERBLOCKS && (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
int mb_index; // Index of the MB in the SB (0..3)
int q_index;
} MACROBLOCKD;
#define ACTIVE_HT 110 // quantization stepsize threshold
#define ACTIVE_HT8 300
#define ACTIVE_HT16 300
// convert MB_PREDICTION_MODE to B_PREDICTION_MODE
static B_PREDICTION_MODE pred_mode_conv(MB_PREDICTION_MODE mode) {
B_PREDICTION_MODE b_mode;
switch (mode) {
case DC_PRED:
b_mode = B_DC_PRED;
break;
case V_PRED:
b_mode = B_VE_PRED;
break;
case H_PRED:
b_mode = B_HE_PRED;
break;
case TM_PRED:
b_mode = B_TM_PRED;
break;
case D45_PRED:
b_mode = B_LD_PRED;
break;
case D135_PRED:
b_mode = B_RD_PRED;
break;
case D117_PRED:
b_mode = B_VR_PRED;
break;
case D153_PRED:
b_mode = B_HD_PRED;
break;
case D27_PRED:
b_mode = B_HU_PRED;
break;
case D63_PRED:
b_mode = B_VL_PRED;
break;
default :
// for debug purpose, to be removed after full testing
assert(0);
break;
}
return b_mode;
}
// transform mapping
static TX_TYPE txfm_map(B_PREDICTION_MODE bmode) {
// map transform type
TX_TYPE tx_type;
switch (bmode) {
case B_TM_PRED :
case B_RD_PRED :
tx_type = ADST_ADST;
break;
case B_VE_PRED :
case B_VR_PRED :
tx_type = ADST_DCT;
break;
case B_HE_PRED :
case B_HD_PRED :
case B_HU_PRED :
tx_type = DCT_ADST;
break;
#if CONFIG_NEWBINTRAMODES
case B_CONTEXT_PRED:
assert(0);
break;
#endif
default :
tx_type = DCT_DCT;
break;
}
return tx_type;
}
#define USE_ADST_FOR_I16X16_8X8 0
#define USE_ADST_FOR_I16X16_4X4 0
#define USE_ADST_FOR_I8X8_4X4 1
#define USE_ADST_PERIPHERY_ONLY 1
static TX_TYPE get_tx_type_4x4(const MACROBLOCKD *xd, const BLOCKD *b) {
// TODO(debargha): explore different patterns for ADST usage when blocksize
// is smaller than the prediction size
TX_TYPE tx_type = DCT_DCT;
int ib = (int)(b - xd->block);
if (ib >= 16)
return tx_type;
#if CONFIG_SUPERBLOCKS
// TODO(rbultje, debargha): Explore ADST usage for superblocks
if (xd->mode_info_context->mbmi.encoded_as_sb)
return tx_type;
#endif
if (xd->mode_info_context->mbmi.mode == B_PRED &&
xd->q_index < ACTIVE_HT) {
tx_type = txfm_map(
#if CONFIG_NEWBINTRAMODES
b->bmi.as_mode.first == B_CONTEXT_PRED ? b->bmi.as_mode.context :
#endif
b->bmi.as_mode.first);
} else if (xd->mode_info_context->mbmi.mode == I8X8_PRED &&
xd->q_index < ACTIVE_HT) {
#if USE_ADST_FOR_I8X8_4X4
#if USE_ADST_PERIPHERY_ONLY
// Use ADST for periphery blocks only
int ic = (ib & 10);
b += ic - ib;
tx_type = (ic != 10) ?
txfm_map(pred_mode_conv((MB_PREDICTION_MODE)b->bmi.as_mode.first)) :
DCT_DCT;
#else
// Use ADST
tx_type = txfm_map(pred_mode_conv(
(MB_PREDICTION_MODE)b->bmi.as_mode.first));
#endif
#else
// Use 2D DCT
tx_type = DCT_DCT;
#endif
} else if (xd->mode_info_context->mbmi.mode < I8X8_PRED &&
xd->q_index < ACTIVE_HT) {
#if USE_ADST_FOR_I16X16_4X4
#if USE_ADST_PERIPHERY_ONLY
// Use ADST for periphery blocks only
tx_type = (ib < 4 || ((ib & 3) == 0)) ?
txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode)) : DCT_DCT;
#else
// Use ADST
tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#endif
#else
// Use 2D DCT
tx_type = DCT_DCT;
#endif
}
return tx_type;
}
static TX_TYPE get_tx_type_8x8(const MACROBLOCKD *xd, const BLOCKD *b) {
// TODO(debargha): explore different patterns for ADST usage when blocksize
// is smaller than the prediction size
TX_TYPE tx_type = DCT_DCT;
int ib = (int)(b - xd->block);
if (ib >= 16)
return tx_type;
#if CONFIG_SUPERBLOCKS
// TODO(rbultje, debargha): Explore ADST usage for superblocks
if (xd->mode_info_context->mbmi.encoded_as_sb)
return tx_type;
#endif
if (xd->mode_info_context->mbmi.mode == I8X8_PRED &&
xd->q_index < ACTIVE_HT8) {
// TODO(rbultje): MB_PREDICTION_MODE / B_PREDICTION_MODE should be merged
// or the relationship otherwise modified to address this type conversion.
tx_type = txfm_map(pred_mode_conv(
(MB_PREDICTION_MODE)b->bmi.as_mode.first));
} else if (xd->mode_info_context->mbmi.mode < I8X8_PRED &&
xd->q_index < ACTIVE_HT8) {
#if USE_ADST_FOR_I8X8_4X4
#if USE_ADST_PERIPHERY_ONLY
// Use ADST for periphery blocks only
tx_type = (ib != 10) ?
txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode)) : DCT_DCT;
#else
// Use ADST
tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#endif
#else
// Use 2D DCT
tx_type = DCT_DCT;
#endif
}
return tx_type;
}
static TX_TYPE get_tx_type_16x16(const MACROBLOCKD *xd, const BLOCKD *b) {
TX_TYPE tx_type = DCT_DCT;
int ib = (int)(b - xd->block);
if (ib >= 16)
return tx_type;
#if CONFIG_SUPERBLOCKS
// TODO(rbultje, debargha): Explore ADST usage for superblocks
if (xd->mode_info_context->mbmi.encoded_as_sb)
return tx_type;
#endif
if (xd->mode_info_context->mbmi.mode < I8X8_PRED &&
xd->q_index < ACTIVE_HT16) {
tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
}
return tx_type;
}
static TX_TYPE get_tx_type(const MACROBLOCKD *xd, const BLOCKD *b) {
TX_TYPE tx_type = DCT_DCT;
int ib = (int)(b - xd->block);
if (ib >= 16)
return tx_type;
if (xd->mode_info_context->mbmi.txfm_size == TX_16X16) {
tx_type = get_tx_type_16x16(xd, b);
}
if (xd->mode_info_context->mbmi.txfm_size == TX_8X8) {
ib = (ib & 8) + ((ib & 4) >> 1);
tx_type = get_tx_type_8x8(xd, &xd->block[ib]);
}
if (xd->mode_info_context->mbmi.txfm_size == TX_4X4) {
tx_type = get_tx_type_4x4(xd, b);
}
return tx_type;
}
static int get_2nd_order_usage(const MACROBLOCKD *xd) {
int has_2nd_order = (xd->mode_info_context->mbmi.mode != SPLITMV &&
xd->mode_info_context->mbmi.mode != I8X8_PRED &&
xd->mode_info_context->mbmi.mode != B_PRED &&
xd->mode_info_context->mbmi.txfm_size != TX_16X16);
if (has_2nd_order)
has_2nd_order = (get_tx_type(xd, xd->block) == DCT_DCT);
return has_2nd_order;
}
extern void vp9_build_block_doffsets(MACROBLOCKD *xd);
extern void vp9_setup_block_dptrs(MACROBLOCKD *xd);
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 */
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