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gecko-dev/media/libvpx/vp8/common/blockd.h

313 строки
8.3 KiB
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 VP8_COMMON_BLOCKD_H_
#define VP8_COMMON_BLOCKD_H_
void vpx_log(const char *format, ...);
#include "vpx_config.h"
#include "vpx_scale/yv12config.h"
#include "mv.h"
#include "treecoder.h"
#include "vpx_ports/mem.h"
#ifdef __cplusplus
extern "C" {
#endif
/*#define DCPRED 1*/
#define DCPREDSIMTHRESH 0
#define DCPREDCNTTHRESH 3
#define MB_FEATURE_TREE_PROBS 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
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];
#define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
Dest = (A)+(B);
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 */
B_PRED, /* block based prediction, each block has its own prediction mode */
NEARESTMV,
NEARMV,
ZEROMV,
NEWMV,
SPLITMV,
MB_MODE_COUNT
} MB_PREDICTION_MODE;
/* Macroblock level features */
typedef enum
{
MB_LVL_ALT_Q = 0, /* Use alternate Quantizer .... */
MB_LVL_ALT_LF = 1, /* Use alternate loop filter value... */
MB_LVL_MAX = 2 /* Number of MB level features supported */
} MB_LVL_FEATURES;
/* Segment Feature Masks */
#define SEGMENT_ALTQ 0x01
#define SEGMENT_ALT_LF 0x02
#define VP8_YMODES (B_PRED + 1)
#define VP8_UV_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
{
B_PREDICTION_MODE 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
{
uint8_t mode, uv_mode;
uint8_t ref_frame;
uint8_t is_4x4;
int_mv mv;
uint8_t partitioning;
uint8_t mb_skip_coeff; /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
uint8_t need_to_clamp_mvs;
uint8_t segment_id; /* Which set of segmentation parameters should be used for this MB */
} MB_MODE_INFO;
typedef struct modeinfo
{
MB_MODE_INFO mbmi;
union b_mode_info bmi[16];
} MODE_INFO;
#if CONFIG_MULTI_RES_ENCODING
/* The mb-level information needed to be stored for higher-resolution encoder */
typedef struct
{
MB_PREDICTION_MODE mode;
MV_REFERENCE_FRAME ref_frame;
int_mv mv;
int dissim; /* dissimilarity level of the macroblock */
} LOWER_RES_MB_INFO;
/* The frame-level information needed to be stored for higher-resolution
* encoder */
typedef struct
{
FRAME_TYPE frame_type;
int is_frame_dropped;
// The frame rate for the lowest resolution.
double low_res_framerate;
/* The frame number of each reference frames */
unsigned int low_res_ref_frames[MAX_REF_FRAMES];
// The video frame counter value for the key frame, for lowest resolution.
unsigned int key_frame_counter_value;
LOWER_RES_MB_INFO *mb_info;
} LOWER_RES_FRAME_INFO;
#endif
typedef struct blockd
{
short *qcoeff;
short *dqcoeff;
unsigned char *predictor;
short *dequant;
int offset;
char *eob;
union b_mode_info bmi;
} BLOCKD;
typedef void (*vp8_subpix_fn_t)(unsigned char *src, int src_pitch, int xofst, int yofst, unsigned char *dst, int dst_pitch);
typedef struct macroblockd
{
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]);
DECLARE_ALIGNED(16, short, dequant_y1[16]);
DECLARE_ALIGNED(16, short, dequant_y1_dc[16]);
DECLARE_ALIGNED(16, short, dequant_y2[16]);
DECLARE_ALIGNED(16, short, dequant_uv[16]);
/* 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 */
YV12_BUFFER_CONFIG dst;
MODE_INFO *mode_info_context;
int mode_info_stride;
FRAME_TYPE frame_type;
int up_available;
int left_available;
unsigned char *recon_above[3];
unsigned char *recon_left[3];
int recon_left_stride[2];
/* 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_segement_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 */
vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS]; /* Probability Tree used to code Segment number */
signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS]; /* Segment parameters */
/* 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;
vp8_subpix_fn_t subpixel_predict;
vp8_subpix_fn_t subpixel_predict8x4;
vp8_subpix_fn_t subpixel_predict8x8;
vp8_subpix_fn_t subpixel_predict16x16;
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
} MACROBLOCKD;
extern void vp8_build_block_doffsets(MACROBLOCKD *x);
extern void vp8_setup_block_dptrs(MACROBLOCKD *x);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP8_COMMON_BLOCKD_H_
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