2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
12 #ifndef __INC_BLOCKD_H
13 #define __INC_BLOCKD_H
15 void vpx_log(const char *format, ...);
17 #include "vpx_ports/config.h"
18 #include "vpx_scale/yv12config.h"
20 #include "treecoder.h"
22 #include "vpx_ports/mem.h"
28 #define DCPREDSIMTHRESH 0
29 #define DCPREDCNTTHRESH 3
31 #define MB_FEATURE_TREE_PROBS 3
32 #define MAX_MB_SEGMENTS 4
34 #define MAX_REF_LF_DELTAS 4
35 #define MAX_MODE_LF_DELTAS 4
37 /* Segment Feature Masks */
38 #define SEGMENT_DELTADATA 0
39 #define SEGMENT_ABSDATA 1
46 #define PLANE_TYPE_Y_NO_DC 0
47 #define PLANE_TYPE_Y2 1
48 #define PLANE_TYPE_UV 2
49 #define PLANE_TYPE_Y_WITH_DC 3
52 typedef char ENTROPY_CONTEXT;
55 ENTROPY_CONTEXT y1[4];
59 } ENTROPY_CONTEXT_PLANES;
61 extern const unsigned char vp8_block2left[25];
62 extern const unsigned char vp8_block2above[25];
64 #define VP8_COMBINEENTROPYCONTEXTS( Dest, A, B) \
65 Dest = ((A)!=0) + ((B)!=0);
76 DC_PRED, /* average of above and left pixels */
77 V_PRED, /* vertical prediction */
78 H_PRED, /* horizontal prediction */
79 TM_PRED, /* Truemotion prediction */
80 B_PRED, /* block based prediction, each block has its own prediction mode */
91 /* Macroblock level features */
94 MB_LVL_ALT_Q = 0, /* Use alternate Quantizer .... */
95 MB_LVL_ALT_LF = 1, /* Use alternate loop filter value... */
96 MB_LVL_MAX = 2 /* Number of MB level features supported */
100 /* Segment Feature Masks */
101 #define SEGMENT_ALTQ 0x01
102 #define SEGMENT_ALT_LF 0x02
104 #define VP8_YMODES (B_PRED + 1)
105 #define VP8_UV_MODES (TM_PRED + 1)
107 #define VP8_MVREFS (1 + SPLITMV - NEARESTMV)
111 B_DC_PRED, /* average of above and left pixels */
114 B_VE_PRED, /* vertical prediction */
115 B_HE_PRED, /* horizontal prediction */
133 #define VP8_BINTRAMODES (B_HU_PRED + 1) /* 10 */
134 #define VP8_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
136 /* For keyframes, intra block modes are predicted by the (already decoded)
137 modes for the Y blocks to the left and above us; for interframes, there
138 is a single probability table. */
142 B_PREDICTION_MODE as_mode;
153 } MV_REFERENCE_FRAME;
157 MB_PREDICTION_MODE mode, uv_mode;
158 MV_REFERENCE_FRAME ref_frame;
161 unsigned char partitioning;
162 unsigned char mb_skip_coeff; /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
163 unsigned char need_to_clamp_mvs;
164 unsigned char segment_id; /* Which set of segmentation parameters should be used for this MB */
170 union b_mode_info bmi[16];
177 unsigned char *predictor;
181 /* 16 Y blocks, 4 U blocks, 4 V blocks each with 16 entries */
182 unsigned char **base_pre;
186 unsigned char **base_dst;
192 union b_mode_info bmi;
195 typedef struct MacroBlockD
197 DECLARE_ALIGNED(16, short, diff[400]); /* from idct diff */
198 DECLARE_ALIGNED(16, unsigned char, predictor[384]);
199 DECLARE_ALIGNED(16, short, qcoeff[400]);
200 DECLARE_ALIGNED(16, short, dqcoeff[400]);
201 DECLARE_ALIGNED(16, char, eobs[25]);
203 /* 16 Y blocks, 4 U, 4 V, 1 DC 2nd order block, each with 16 entries. */
206 YV12_BUFFER_CONFIG pre; /* Filtered copy of previous frame reconstruction */
207 YV12_BUFFER_CONFIG dst;
209 MODE_INFO *mode_info_context;
210 int mode_info_stride;
212 FRAME_TYPE frame_type;
218 ENTROPY_CONTEXT_PLANES *above_context;
219 ENTROPY_CONTEXT_PLANES *left_context;
221 /* 0 indicates segmentation at MB level is not enabled. Otherwise the individual bits indicate which features are active. */
222 unsigned char segmentation_enabled;
224 /* 0 (do not update) 1 (update) the macroblock segmentation map. */
225 unsigned char update_mb_segmentation_map;
227 /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
228 unsigned char update_mb_segmentation_data;
230 /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
231 unsigned char mb_segement_abs_delta;
233 /* Per frame flags that define which MB level features (such as quantizer or loop filter level) */
234 /* are enabled and when enabled the proabilities used to decode the per MB flags in MB_MODE_INFO */
235 vp8_prob mb_segment_tree_probs[MB_FEATURE_TREE_PROBS]; /* Probability Tree used to code Segment number */
237 signed char segment_feature_data[MB_LVL_MAX][MAX_MB_SEGMENTS]; /* Segment parameters */
239 /* mode_based Loop filter adjustment */
240 unsigned char mode_ref_lf_delta_enabled;
241 unsigned char mode_ref_lf_delta_update;
243 /* Delta values have the range +/- MAX_LOOP_FILTER */
244 signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS]; /* 0 = Intra, Last, GF, ARF */
245 signed char ref_lf_deltas[MAX_REF_LF_DELTAS]; /* 0 = Intra, Last, GF, ARF */
246 signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS]; /* 0 = BPRED, ZERO_MV, MV, SPLIT */
247 signed char mode_lf_deltas[MAX_MODE_LF_DELTAS]; /* 0 = BPRED, ZERO_MV, MV, SPLIT */
249 /* Distance of MB away from frame edges */
251 int mb_to_right_edge;
253 int mb_to_bottom_edge;
255 int ref_frame_cost[MAX_REF_FRAMES];
258 unsigned int frames_since_golden;
259 unsigned int frames_till_alt_ref_frame;
260 vp8_subpix_fn_t subpixel_predict;
261 vp8_subpix_fn_t subpixel_predict8x4;
262 vp8_subpix_fn_t subpixel_predict8x8;
263 vp8_subpix_fn_t subpixel_predict16x16;
269 #if CONFIG_RUNTIME_CPU_DETECT
270 struct VP8_COMMON_RTCD *rtcd;
275 extern void vp8_build_block_doffsets(MACROBLOCKD *x);
276 extern void vp8_setup_block_dptrs(MACROBLOCKD *x);
278 static void update_blockd_bmi(MACROBLOCKD *xd)
282 is_4x4 = (xd->mode_info_context->mbmi.mode == SPLITMV) ||
283 (xd->mode_info_context->mbmi.mode == B_PRED);
287 for (i = 0; i < 16; i++)
289 xd->block[i].bmi = xd->mode_info_context->bmi[i];
294 #endif /* __INC_BLOCKD_H */