335 строки
9.0 KiB
C
335 строки
9.0 KiB
C
/*
|
|
* 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_
|
|
|
|
#include "./vpx_config.h"
|
|
|
|
#include "vpx_ports/mem.h"
|
|
#include "vpx_scale/yv12config.h"
|
|
|
|
#include "vp9/common/vp9_common.h"
|
|
#include "vp9/common/vp9_common_data.h"
|
|
#include "vp9/common/vp9_enums.h"
|
|
#include "vp9/common/vp9_filter.h"
|
|
#include "vp9/common/vp9_mv.h"
|
|
#include "vp9/common/vp9_scale.h"
|
|
#include "vp9/common/vp9_seg_common.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define BLOCK_SIZE_GROUPS 4
|
|
#define SKIP_CONTEXTS 3
|
|
#define INTER_MODE_CONTEXTS 7
|
|
|
|
/* Segment Feature Masks */
|
|
#define MAX_MV_REF_CANDIDATES 2
|
|
|
|
#define INTRA_INTER_CONTEXTS 4
|
|
#define COMP_INTER_CONTEXTS 5
|
|
#define REF_CONTEXTS 5
|
|
|
|
typedef enum {
|
|
PLANE_TYPE_Y = 0,
|
|
PLANE_TYPE_UV = 1,
|
|
PLANE_TYPES
|
|
} PLANE_TYPE;
|
|
|
|
typedef char ENTROPY_CONTEXT;
|
|
|
|
typedef char PARTITION_CONTEXT;
|
|
|
|
static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a,
|
|
ENTROPY_CONTEXT b) {
|
|
return (a != 0) + (b != 0);
|
|
}
|
|
|
|
typedef enum {
|
|
KEY_FRAME = 0,
|
|
INTER_FRAME = 1,
|
|
FRAME_TYPES,
|
|
} FRAME_TYPE;
|
|
|
|
typedef enum {
|
|
DC_PRED, // Average of above and left pixels
|
|
V_PRED, // Vertical
|
|
H_PRED, // Horizontal
|
|
D45_PRED, // Directional 45 deg = round(arctan(1/1) * 180/pi)
|
|
D135_PRED, // Directional 135 deg = 180 - 45
|
|
D117_PRED, // Directional 117 deg = 180 - 63
|
|
D153_PRED, // Directional 153 deg = 180 - 27
|
|
D207_PRED, // Directional 207 deg = 180 + 27
|
|
D63_PRED, // Directional 63 deg = round(arctan(2/1) * 180/pi)
|
|
TM_PRED, // True-motion
|
|
NEARESTMV,
|
|
NEARMV,
|
|
ZEROMV,
|
|
NEWMV,
|
|
MB_MODE_COUNT
|
|
} MB_PREDICTION_MODE;
|
|
|
|
static INLINE int is_inter_mode(MB_PREDICTION_MODE mode) {
|
|
return mode >= NEARESTMV && mode <= NEWMV;
|
|
}
|
|
|
|
#define INTRA_MODES (TM_PRED + 1)
|
|
|
|
#define INTER_MODES (1 + NEWMV - NEARESTMV)
|
|
|
|
#define INTER_OFFSET(mode) ((mode) - NEARESTMV)
|
|
|
|
/* 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. */
|
|
|
|
typedef struct {
|
|
MB_PREDICTION_MODE as_mode;
|
|
int_mv as_mv[2]; // first, second inter predictor motion vectors
|
|
} b_mode_info;
|
|
|
|
typedef enum {
|
|
NONE = -1,
|
|
INTRA_FRAME = 0,
|
|
LAST_FRAME = 1,
|
|
GOLDEN_FRAME = 2,
|
|
ALTREF_FRAME = 3,
|
|
MAX_REF_FRAMES = 4
|
|
} MV_REFERENCE_FRAME;
|
|
|
|
static INLINE int b_width_log2(BLOCK_SIZE sb_type) {
|
|
return b_width_log2_lookup[sb_type];
|
|
}
|
|
static INLINE int b_height_log2(BLOCK_SIZE sb_type) {
|
|
return b_height_log2_lookup[sb_type];
|
|
}
|
|
|
|
static INLINE int mi_width_log2(BLOCK_SIZE sb_type) {
|
|
return mi_width_log2_lookup[sb_type];
|
|
}
|
|
|
|
// This structure now relates to 8x8 block regions.
|
|
typedef struct {
|
|
MB_PREDICTION_MODE mode, uv_mode;
|
|
MV_REFERENCE_FRAME ref_frame[2];
|
|
TX_SIZE tx_size;
|
|
int_mv mv[2]; // for each reference frame used
|
|
int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
|
|
|
|
uint8_t mode_context[MAX_REF_FRAMES];
|
|
|
|
unsigned char skip; // 0=need to decode coeffs, 1=no coefficients
|
|
unsigned char segment_id; // Segment id for this block.
|
|
|
|
// Flags used for prediction status of various bit-stream signals
|
|
unsigned char seg_id_predicted;
|
|
|
|
INTERP_FILTER interp_filter;
|
|
|
|
BLOCK_SIZE sb_type;
|
|
} MB_MODE_INFO;
|
|
|
|
typedef struct {
|
|
MB_MODE_INFO mbmi;
|
|
b_mode_info bmi[4];
|
|
} MODE_INFO;
|
|
|
|
static INLINE MB_PREDICTION_MODE get_y_mode(const MODE_INFO *mi, int block) {
|
|
return mi->mbmi.sb_type < BLOCK_8X8 ? mi->bmi[block].as_mode
|
|
: mi->mbmi.mode;
|
|
}
|
|
|
|
static INLINE int is_inter_block(const MB_MODE_INFO *mbmi) {
|
|
return mbmi->ref_frame[0] > INTRA_FRAME;
|
|
}
|
|
|
|
static INLINE int has_second_ref(const MB_MODE_INFO *mbmi) {
|
|
return mbmi->ref_frame[1] > INTRA_FRAME;
|
|
}
|
|
|
|
MB_PREDICTION_MODE vp9_left_block_mode(const MODE_INFO *cur_mi,
|
|
const MODE_INFO *left_mi, int b);
|
|
|
|
MB_PREDICTION_MODE vp9_above_block_mode(const MODE_INFO *cur_mi,
|
|
const MODE_INFO *above_mi, int b);
|
|
|
|
enum mv_precision {
|
|
MV_PRECISION_Q3,
|
|
MV_PRECISION_Q4
|
|
};
|
|
|
|
#if CONFIG_ALPHA
|
|
enum { MAX_MB_PLANE = 4 };
|
|
#else
|
|
enum { MAX_MB_PLANE = 3 };
|
|
#endif
|
|
|
|
struct buf_2d {
|
|
uint8_t *buf;
|
|
int stride;
|
|
};
|
|
|
|
struct macroblockd_plane {
|
|
int16_t *dqcoeff;
|
|
PLANE_TYPE plane_type;
|
|
int subsampling_x;
|
|
int subsampling_y;
|
|
struct buf_2d dst;
|
|
struct buf_2d pre[2];
|
|
const int16_t *dequant;
|
|
ENTROPY_CONTEXT *above_context;
|
|
ENTROPY_CONTEXT *left_context;
|
|
};
|
|
|
|
#define BLOCK_OFFSET(x, i) ((x) + (i) * 16)
|
|
|
|
typedef struct RefBuffer {
|
|
// TODO(dkovalev): idx is not really required and should be removed, now it
|
|
// is used in vp9_onyxd_if.c
|
|
int idx;
|
|
YV12_BUFFER_CONFIG *buf;
|
|
struct scale_factors sf;
|
|
} RefBuffer;
|
|
|
|
typedef struct macroblockd {
|
|
struct macroblockd_plane plane[MAX_MB_PLANE];
|
|
|
|
int mode_info_stride;
|
|
|
|
// A NULL indicates that the 8x8 is not part of the image
|
|
MODE_INFO **mi_8x8;
|
|
MODE_INFO **prev_mi_8x8;
|
|
MODE_INFO *mi_stream;
|
|
|
|
int up_available;
|
|
int left_available;
|
|
|
|
/* 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;
|
|
|
|
/* pointers to reference frames */
|
|
RefBuffer *block_refs[2];
|
|
|
|
/* pointer to current frame */
|
|
const YV12_BUFFER_CONFIG *cur_buf;
|
|
|
|
/* mc buffer */
|
|
DECLARE_ALIGNED(16, uint8_t, mc_buf[80 * 2 * 80 * 2]);
|
|
|
|
int lossless;
|
|
/* Inverse transform function pointers. */
|
|
void (*itxm_add)(const int16_t *input, uint8_t *dest, int stride, int eob);
|
|
|
|
const InterpKernel *interp_kernel;
|
|
|
|
int corrupted;
|
|
|
|
/* Y,U,V,(A) */
|
|
ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
|
|
ENTROPY_CONTEXT left_context[MAX_MB_PLANE][16];
|
|
|
|
PARTITION_CONTEXT *above_seg_context;
|
|
PARTITION_CONTEXT left_seg_context[8];
|
|
} MACROBLOCKD;
|
|
|
|
|
|
|
|
static INLINE BLOCK_SIZE get_subsize(BLOCK_SIZE bsize,
|
|
PARTITION_TYPE partition) {
|
|
const BLOCK_SIZE subsize = subsize_lookup[partition][bsize];
|
|
assert(subsize < BLOCK_SIZES);
|
|
return subsize;
|
|
}
|
|
|
|
extern const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES];
|
|
|
|
static INLINE TX_TYPE get_tx_type(PLANE_TYPE plane_type,
|
|
const MACROBLOCKD *xd) {
|
|
const MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
|
|
|
|
if (plane_type != PLANE_TYPE_Y || is_inter_block(mbmi))
|
|
return DCT_DCT;
|
|
return intra_mode_to_tx_type_lookup[mbmi->mode];
|
|
}
|
|
|
|
static INLINE TX_TYPE get_tx_type_4x4(PLANE_TYPE plane_type,
|
|
const MACROBLOCKD *xd, int ib) {
|
|
const MODE_INFO *const mi = xd->mi_8x8[0];
|
|
|
|
if (plane_type != PLANE_TYPE_Y || xd->lossless || is_inter_block(&mi->mbmi))
|
|
return DCT_DCT;
|
|
|
|
return intra_mode_to_tx_type_lookup[get_y_mode(mi, ib)];
|
|
}
|
|
|
|
void vp9_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y);
|
|
|
|
static INLINE TX_SIZE get_uv_tx_size_impl(TX_SIZE y_tx_size, BLOCK_SIZE bsize) {
|
|
if (bsize < BLOCK_8X8) {
|
|
return TX_4X4;
|
|
} else {
|
|
// TODO(dkovalev): Assuming YUV420 (ss_x == 1, ss_y == 1)
|
|
const BLOCK_SIZE plane_bsize = ss_size_lookup[bsize][1][1];
|
|
return MIN(y_tx_size, max_txsize_lookup[plane_bsize]);
|
|
}
|
|
}
|
|
|
|
static INLINE TX_SIZE get_uv_tx_size(const MB_MODE_INFO *mbmi) {
|
|
return get_uv_tx_size_impl(mbmi->tx_size, mbmi->sb_type);
|
|
}
|
|
|
|
static INLINE BLOCK_SIZE get_plane_block_size(BLOCK_SIZE bsize,
|
|
const struct macroblockd_plane *pd) {
|
|
BLOCK_SIZE bs = ss_size_lookup[bsize][pd->subsampling_x][pd->subsampling_y];
|
|
assert(bs < BLOCK_SIZES);
|
|
return bs;
|
|
}
|
|
|
|
typedef void (*foreach_transformed_block_visitor)(int plane, int block,
|
|
BLOCK_SIZE plane_bsize,
|
|
TX_SIZE tx_size,
|
|
void *arg);
|
|
|
|
void vp9_foreach_transformed_block_in_plane(
|
|
const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane,
|
|
foreach_transformed_block_visitor visit, void *arg);
|
|
|
|
|
|
void vp9_foreach_transformed_block(
|
|
const MACROBLOCKD* const xd, BLOCK_SIZE bsize,
|
|
foreach_transformed_block_visitor visit, void *arg);
|
|
|
|
static INLINE void txfrm_block_to_raster_xy(BLOCK_SIZE plane_bsize,
|
|
TX_SIZE tx_size, int block,
|
|
int *x, int *y) {
|
|
const int bwl = b_width_log2(plane_bsize);
|
|
const int tx_cols_log2 = bwl - tx_size;
|
|
const int tx_cols = 1 << tx_cols_log2;
|
|
const int raster_mb = block >> (tx_size << 1);
|
|
*x = (raster_mb & (tx_cols - 1)) << tx_size;
|
|
*y = (raster_mb >> tx_cols_log2) << tx_size;
|
|
}
|
|
|
|
void vp9_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
|
|
BLOCK_SIZE plane_bsize, TX_SIZE tx_size, int has_eob,
|
|
int aoff, int loff);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // VP9_COMMON_VP9_BLOCKD_H_
|