2 * Copyright (c) 2010 The VP8 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 #include "vpx_ports/config.h"
18 #include "entropymode.h"
19 #include "quant_common.h"
20 #include "segmentation_common.h"
21 #include "setupintrarecon.h"
22 #include "encodeintra.h"
23 #include "reconinter.h"
25 #include "pickinter.h"
26 #include "findnearmv.h"
27 #include "reconintra.h"
31 #include "vpx_ports/vpx_timer.h"
33 #if CONFIG_RUNTIME_CPU_DETECT
34 #define RTCD(x) &cpi->common.rtcd.x
35 #define IF_RTCD(x) (x)
38 #define IF_RTCD(x) NULL
40 extern void vp8_stuff_mb(VP8_COMP *cpi, MACROBLOCKD *x, TOKENEXTRA **t) ;
42 extern void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex);
43 extern void vp8_auto_select_speed(VP8_COMP *cpi);
44 extern void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
49 void vp8_build_block_offsets(MACROBLOCK *x);
50 void vp8_setup_block_ptrs(MACROBLOCK *x);
51 int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset);
52 int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t);
55 unsigned int inter_y_modes[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
56 unsigned int inter_uv_modes[4] = {0, 0, 0, 0};
57 unsigned int inter_b_modes[15] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
58 unsigned int y_modes[5] = {0, 0, 0, 0, 0};
59 unsigned int uv_modes[4] = {0, 0, 0, 0};
60 unsigned int b_modes[14] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
63 static const int qrounding_factors[129] =
65 56, 56, 56, 56, 48, 48, 56, 56,
66 48, 48, 48, 48, 48, 48, 48, 48,
67 48, 48, 48, 48, 48, 48, 48, 48,
68 48, 48, 48, 48, 48, 48, 48, 48,
69 48, 48, 48, 48, 48, 48, 48, 48,
70 48, 48, 48, 48, 48, 48, 48, 48,
71 48, 48, 48, 48, 48, 48, 48, 48,
72 48, 48, 48, 48, 48, 48, 48, 48,
73 48, 48, 48, 48, 48, 48, 48, 48,
74 48, 48, 48, 48, 48, 48, 48, 48,
75 48, 48, 48, 48, 48, 48, 48, 48,
76 48, 48, 48, 48, 48, 48, 48, 48,
77 48, 48, 48, 48, 48, 48, 48, 48,
78 48, 48, 48, 48, 48, 48, 48, 48,
79 48, 48, 48, 48, 48, 48, 48, 48,
80 48, 48, 48, 48, 48, 48, 48, 48,
84 static const int qzbin_factors[129] =
86 72, 72, 72, 72, 80, 80, 72, 72,
87 80, 80, 80, 80, 80, 80, 80, 80,
88 80, 80, 80, 80, 80, 80, 80, 80,
89 80, 80, 80, 80, 80, 80, 80, 80,
90 80, 80, 80, 80, 80, 80, 80, 80,
91 80, 80, 80, 80, 80, 80, 80, 80,
92 80, 80, 80, 80, 80, 80, 80, 80,
93 80, 80, 80, 80, 80, 80, 80, 80,
94 80, 80, 80, 80, 80, 80, 80, 80,
95 80, 80, 80, 80, 80, 80, 80, 80,
96 80, 80, 80, 80, 80, 80, 80, 80,
97 80, 80, 80, 80, 80, 80, 80, 80,
98 80, 80, 80, 80, 80, 80, 80, 80,
99 80, 80, 80, 80, 80, 80, 80, 80,
100 80, 80, 80, 80, 80, 80, 80, 80,
101 80, 80, 80, 80, 80, 80, 80, 80,
104 //#define EXACT_QUANT
106 static void vp8cx_invert_quant(short *quant, short *shift, short d)
111 for(l = 0; t > 1; l++)
113 t = 1 + (1<<(16+l))/d;
114 *quant = (short)(t - (1<<16));
118 void vp8cx_init_quantizer(VP8_COMP *cpi)
125 int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
127 for (Q = 0; Q < QINDEX_RANGE; Q++)
130 quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
131 vp8cx_invert_quant(cpi->Y1quant[Q][0] + 0,
132 cpi->Y1quant_shift[Q][0] + 0, quant_val);
133 cpi->Y1zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
134 cpi->Y1round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
135 cpi->common.Y1dequant[Q][0][0] = quant_val;
136 cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
138 quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
139 vp8cx_invert_quant(cpi->Y2quant[Q][0] + 0,
140 cpi->Y2quant_shift[Q][0] + 0, quant_val);
141 cpi->Y2zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
142 cpi->Y2round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
143 cpi->common.Y2dequant[Q][0][0] = quant_val;
144 cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
146 quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
147 vp8cx_invert_quant(cpi->UVquant[Q][0] + 0,
148 cpi->UVquant_shift[Q][0] + 0, quant_val);
149 cpi->UVzbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
150 cpi->UVround[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
151 cpi->common.UVdequant[Q][0][0] = quant_val;
152 cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
154 // all the ac values = ;
155 for (i = 1; i < 16; i++)
157 int rc = vp8_default_zig_zag1d[i];
161 quant_val = vp8_ac_yquant(Q);
162 vp8cx_invert_quant(cpi->Y1quant[Q][r] + c,
163 cpi->Y1quant_shift[Q][r] + c, quant_val);
164 cpi->Y1zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
165 cpi->Y1round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
166 cpi->common.Y1dequant[Q][r][c] = quant_val;
167 cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
169 quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
170 vp8cx_invert_quant(cpi->Y2quant[Q][r] + c,
171 cpi->Y2quant_shift[Q][r] + c, quant_val);
172 cpi->Y2zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
173 cpi->Y2round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
174 cpi->common.Y2dequant[Q][r][c] = quant_val;
175 cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
177 quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
178 vp8cx_invert_quant(cpi->UVquant[Q][r] + c,
179 cpi->UVquant_shift[Q][r] + c, quant_val);
180 cpi->UVzbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
181 cpi->UVround[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
182 cpi->common.UVdequant[Q][r][c] = quant_val;
183 cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
188 void vp8cx_init_quantizer(VP8_COMP *cpi)
\r
195 int zbin_boost[16] = {0, 0, 8, 10, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 44, 44};
\r
197 for (Q = 0; Q < QINDEX_RANGE; Q++)
\r
200 quant_val = vp8_dc_quant(Q, cpi->common.y1dc_delta_q);
\r
201 cpi->Y1quant[Q][0][0] = (1 << 16) / quant_val;
\r
202 cpi->Y1zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
\r
203 cpi->Y1round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
\r
204 cpi->common.Y1dequant[Q][0][0] = quant_val;
\r
205 cpi->zrun_zbin_boost_y1[Q][0] = (quant_val * zbin_boost[0]) >> 7;
\r
207 quant_val = vp8_dc2quant(Q, cpi->common.y2dc_delta_q);
\r
208 cpi->Y2quant[Q][0][0] = (1 << 16) / quant_val;
\r
209 cpi->Y2zbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
\r
210 cpi->Y2round[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
\r
211 cpi->common.Y2dequant[Q][0][0] = quant_val;
\r
212 cpi->zrun_zbin_boost_y2[Q][0] = (quant_val * zbin_boost[0]) >> 7;
\r
214 quant_val = vp8_dc_uv_quant(Q, cpi->common.uvdc_delta_q);
\r
215 cpi->UVquant[Q][0][0] = (1 << 16) / quant_val;
\r
216 cpi->UVzbin[Q][0][0] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;;
\r
217 cpi->UVround[Q][0][0] = (qrounding_factors[Q] * quant_val) >> 7;
\r
218 cpi->common.UVdequant[Q][0][0] = quant_val;
\r
219 cpi->zrun_zbin_boost_uv[Q][0] = (quant_val * zbin_boost[0]) >> 7;
\r
221 // all the ac values = ;
\r
222 for (i = 1; i < 16; i++)
\r
224 int rc = vp8_default_zig_zag1d[i];
\r
228 quant_val = vp8_ac_yquant(Q);
\r
229 cpi->Y1quant[Q][r][c] = (1 << 16) / quant_val;
\r
230 cpi->Y1zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
\r
231 cpi->Y1round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
\r
232 cpi->common.Y1dequant[Q][r][c] = quant_val;
\r
233 cpi->zrun_zbin_boost_y1[Q][i] = (quant_val * zbin_boost[i]) >> 7;
\r
235 quant_val = vp8_ac2quant(Q, cpi->common.y2ac_delta_q);
\r
236 cpi->Y2quant[Q][r][c] = (1 << 16) / quant_val;
\r
237 cpi->Y2zbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
\r
238 cpi->Y2round[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
\r
239 cpi->common.Y2dequant[Q][r][c] = quant_val;
\r
240 cpi->zrun_zbin_boost_y2[Q][i] = (quant_val * zbin_boost[i]) >> 7;
\r
242 quant_val = vp8_ac_uv_quant(Q, cpi->common.uvac_delta_q);
\r
243 cpi->UVquant[Q][r][c] = (1 << 16) / quant_val;
\r
244 cpi->UVzbin[Q][r][c] = ((qzbin_factors[Q] * quant_val) + 64) >> 7;
\r
245 cpi->UVround[Q][r][c] = (qrounding_factors[Q] * quant_val) >> 7;
\r
246 cpi->common.UVdequant[Q][r][c] = quant_val;
\r
247 cpi->zrun_zbin_boost_uv[Q][i] = (quant_val * zbin_boost[i]) >> 7;
\r
252 void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x)
256 MACROBLOCKD *xd = &x->e_mbd;
257 MB_MODE_INFO *mbmi = &xd->mbmi;
260 // Select the baseline MB Q index.
261 if (xd->segmentation_enabled)
264 if (xd->mb_segement_abs_delta == SEGMENT_ABSDATA)
265 QIndex = xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
270 QIndex = cpi->common.base_qindex + xd->segment_feature_data[MB_LVL_ALT_Q][mbmi->segment_id];
271 QIndex = (QIndex >= 0) ? ((QIndex <= MAXQ) ? QIndex : MAXQ) : 0; // Clamp to valid range
275 QIndex = cpi->common.base_qindex;
278 zbin_extra = (cpi->common.Y1dequant[QIndex][0][1] * (cpi->zbin_over_quant + cpi->zbin_mode_boost)) >> 7;
280 for (i = 0; i < 16; i++)
282 x->block[i].quant = cpi->Y1quant[QIndex];
283 x->block[i].quant_shift = cpi->Y1quant_shift[QIndex];
284 x->block[i].zbin = cpi->Y1zbin[QIndex];
285 x->block[i].round = cpi->Y1round[QIndex];
286 x->e_mbd.block[i].dequant = cpi->common.Y1dequant[QIndex];
287 x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_y1[QIndex];
288 x->block[i].zbin_extra = (short)zbin_extra;
292 zbin_extra = (cpi->common.UVdequant[QIndex][0][1] * (cpi->zbin_over_quant + cpi->zbin_mode_boost)) >> 7;
294 for (i = 16; i < 24; i++)
296 x->block[i].quant = cpi->UVquant[QIndex];
297 x->block[i].quant_shift = cpi->UVquant_shift[QIndex];
298 x->block[i].zbin = cpi->UVzbin[QIndex];
299 x->block[i].round = cpi->UVround[QIndex];
300 x->e_mbd.block[i].dequant = cpi->common.UVdequant[QIndex];
301 x->block[i].zrun_zbin_boost = cpi->zrun_zbin_boost_uv[QIndex];
302 x->block[i].zbin_extra = (short)zbin_extra;
306 zbin_extra = (cpi->common.Y2dequant[QIndex][0][1] * ((cpi->zbin_over_quant / 2) + cpi->zbin_mode_boost)) >> 7;
307 x->block[24].quant = cpi->Y2quant[QIndex];
308 x->block[24].quant_shift = cpi->Y2quant_shift[QIndex];
309 x->block[24].zbin = cpi->Y2zbin[QIndex];
310 x->block[24].round = cpi->Y2round[QIndex];
311 x->e_mbd.block[24].dequant = cpi->common.Y2dequant[QIndex];
312 x->block[24].zrun_zbin_boost = cpi->zrun_zbin_boost_y2[QIndex];
313 x->block[24].zbin_extra = (short)zbin_extra;
316 void vp8cx_frame_init_quantizer(VP8_COMP *cpi)
318 // vp8cx_init_quantizer() is first called in vp8_create_compressor(). A check is added here so that vp8cx_init_quantizer() is only called
319 // when these values are not all zero.
320 if (cpi->common.y1dc_delta_q | cpi->common.y2dc_delta_q | cpi->common.uvdc_delta_q | cpi->common.y2ac_delta_q | cpi->common.uvac_delta_q)
322 vp8cx_init_quantizer(cpi);
325 // MB level quantizer setup
326 vp8cx_mb_init_quantizer(cpi, &cpi->mb);
332 void encode_mb_row(VP8_COMP *cpi,
342 int recon_yoffset, recon_uvoffset;
344 int ref_fb_idx = cm->lst_fb_idx;
345 int dst_fb_idx = cm->new_fb_idx;
346 int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
347 int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
348 int seg_map_index = (mb_row * cpi->common.mb_cols);
351 // reset above block coeffs
352 xd->above_context[Y1CONTEXT] = cm->above_context[Y1CONTEXT];
353 xd->above_context[UCONTEXT ] = cm->above_context[UCONTEXT ];
354 xd->above_context[VCONTEXT ] = cm->above_context[VCONTEXT ];
355 xd->above_context[Y2CONTEXT] = cm->above_context[Y2CONTEXT];
357 xd->up_available = (mb_row != 0);
358 recon_yoffset = (mb_row * recon_y_stride * 16);
359 recon_uvoffset = (mb_row * recon_uv_stride * 8);
361 cpi->tplist[mb_row].start = *tp;
362 //printf("Main mb_row = %d\n", mb_row);
364 // for each macroblock col in image
365 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
367 // Distance of Mb to the various image edges.
368 // These specified to 8th pel as they are always compared to values that are in 1/8th pel units
369 xd->mb_to_left_edge = -((mb_col * 16) << 3);
370 xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
371 xd->mb_to_top_edge = -((mb_row * 16) << 3);
372 xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
374 // Set up limit values for motion vectors used to prevent them extending outside the UMV borders
375 x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
376 x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
377 x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
378 x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
380 xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
381 xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
382 xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
383 xd->left_available = (mb_col != 0);
385 // Is segmentation enabled
386 // MB level adjutment to quantizer
387 if (xd->segmentation_enabled)
389 // Code to set segment id in xd->mbmi.segment_id for current MB (with range checking)
390 if (cpi->segmentation_map[seg_map_index+mb_col] <= 3)
391 xd->mbmi.segment_id = cpi->segmentation_map[seg_map_index+mb_col];
393 xd->mbmi.segment_id = 0;
395 vp8cx_mb_init_quantizer(cpi, x);
398 xd->mbmi.segment_id = 0; // Set to Segment 0 by default
400 x->active_ptr = cpi->active_map + seg_map_index + mb_col;
402 if (cm->frame_type == KEY_FRAME)
404 *totalrate += vp8cx_encode_intra_macro_block(cpi, x, tp);
406 y_modes[xd->mbmi.mode] ++;
411 *totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset);
414 inter_y_modes[xd->mbmi.mode] ++;
416 if (xd->mbmi.mode == SPLITMV)
420 for (b = 0; b < xd->mbmi.partition_count; b++)
422 inter_b_modes[xd->mbmi.partition_bmi[b].mode] ++;
428 // Count of last ref frame 0,0 useage
429 if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame == LAST_FRAME))
430 cpi->inter_zz_count ++;
432 // Special case code for cyclic refresh
433 // If cyclic update enabled then copy xd->mbmi.segment_id; (which may have been updated based on mode
434 // during vp8cx_encode_inter_macroblock()) back into the global sgmentation map
435 if (cpi->cyclic_refresh_mode_enabled && xd->segmentation_enabled)
437 cpi->segmentation_map[seg_map_index+mb_col] = xd->mbmi.segment_id;
439 // If the block has been refreshed mark it as clean (the magnitude of the -ve influences how long it will be before we consider another refresh):
440 // Else if it was coded (last frame 0,0) and has not already been refreshed then mark it as a candidate for cleanup next time (marked 0)
441 // else mark it as dirty (1).
442 if (xd->mbmi.segment_id)
443 cpi->cyclic_refresh_map[seg_map_index+mb_col] = -1;
444 else if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame == LAST_FRAME))
446 if (cpi->cyclic_refresh_map[seg_map_index+mb_col] == 1)
447 cpi->cyclic_refresh_map[seg_map_index+mb_col] = 0;
450 cpi->cyclic_refresh_map[seg_map_index+mb_col] = 1;
455 cpi->tplist[mb_row].stop = *tp;
457 x->gf_active_ptr++; // Increment pointer into gf useage flags structure for next mb
459 // store macroblock mode info into context array
460 vpx_memcpy(&xd->mode_info_context->mbmi, &xd->mbmi, sizeof(xd->mbmi));
462 for (i = 0; i < 16; i++)
463 vpx_memcpy(&xd->mode_info_context->bmi[i], &xd->block[i].bmi, sizeof(xd->block[i].bmi));
465 // adjust to the next column of macroblocks
466 x->src.y_buffer += 16;
467 x->src.u_buffer += 8;
468 x->src.v_buffer += 8;
473 // Keep track of segment useage
474 segment_counts[xd->mbmi.segment_id] ++;
477 xd->mode_info_context++;
479 xd->above_context[Y1CONTEXT] += 4;
480 xd->above_context[UCONTEXT ] += 2;
481 xd->above_context[VCONTEXT ] += 2;
482 xd->above_context[Y2CONTEXT] ++;
483 cpi->current_mb_col_main = mb_col;
486 //extend the recon for intra prediction
488 &cm->yv12_fb[dst_fb_idx],
489 xd->dst.y_buffer + 16,
490 xd->dst.u_buffer + 8,
491 xd->dst.v_buffer + 8);
493 // this is to account for the border
494 xd->mode_info_context++;
501 void vp8_encode_frame(VP8_COMP *cpi)
504 MACROBLOCK *const x = & cpi->mb;
505 VP8_COMMON *const cm = & cpi->common;
506 MACROBLOCKD *const xd = & x->e_mbd;
509 TOKENEXTRA *tp = cpi->tok;
510 int segment_counts[MAX_MB_SEGMENTS];
513 if (cm->frame_type != KEY_FRAME)
515 if (cm->mcomp_filter_type == SIXTAP)
517 xd->subpixel_predict = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap4x4);
518 xd->subpixel_predict8x4 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap8x4);
519 xd->subpixel_predict8x8 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap8x8);
520 xd->subpixel_predict16x16 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, sixtap16x16);
524 xd->subpixel_predict = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear4x4);
525 xd->subpixel_predict8x4 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear8x4);
526 xd->subpixel_predict8x8 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear8x8);
527 xd->subpixel_predict16x16 = SUBPIX_INVOKE(&cpi->common.rtcd.subpix, bilinear16x16);
533 // For key frames make sure the intra ref frame probability value
534 // is set to "all intra"
535 //cpi->prob_intra_coded = 255;
539 x->gf_active_ptr = (signed char *)cpi->gf_active_flags; // Point to base of GF active flags data structure
541 x->vector_range = 32;
543 // Count of MBs using the alternate Q if any
546 // Reset frame count of inter 0,0 motion vector useage.
547 cpi->inter_zz_count = 0;
549 vpx_memset(segment_counts, 0, sizeof(segment_counts));
551 cpi->prediction_error = 0;
552 cpi->intra_error = 0;
553 cpi->skip_true_count = 0;
554 cpi->skip_false_count = 0;
558 cpi->frame_distortion = 0;
559 cpi->last_mb_distortion = 0;
564 xd->mode_info = cm->mi - 1;
566 xd->mode_info_context = cm->mi;
567 xd->mode_info_stride = cm->mode_info_stride;
569 xd->frame_type = cm->frame_type;
571 xd->frames_since_golden = cm->frames_since_golden;
572 xd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame;
573 vp8_zero(cpi->MVcount);
574 // vp8_zero( Contexts)
575 vp8_zero(cpi->coef_counts);
577 // reset intra mode contexts
578 if (cm->frame_type == KEY_FRAME)
579 vp8_init_mbmode_probs(cm);
582 vp8cx_frame_init_quantizer(cpi);
584 if (cpi->compressor_speed == 2)
586 if (cpi->oxcf.cpu_used < 0)
587 cpi->Speed = -(cpi->oxcf.cpu_used);
589 vp8_auto_select_speed(cpi);
592 vp8_initialize_rd_consts(cpi, vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
593 //vp8_initialize_rd_consts( cpi, vp8_dc_quant(cpi->avg_frame_qindex, cm->y1dc_delta_q) );
594 vp8cx_initialize_me_consts(cpi, cm->base_qindex);
595 //vp8cx_initialize_me_consts( cpi, cpi->avg_frame_qindex);
597 // Copy data over into macro block data sturctures.
599 x->src = * cpi->Source;
600 xd->pre = cm->yv12_fb[cm->lst_fb_idx];
601 xd->dst = cm->yv12_fb[cm->new_fb_idx];
603 // set up frame new frame for intra coded blocks
605 vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]);
607 vp8_build_block_offsets(x);
609 vp8_setup_block_dptrs(&x->e_mbd);
611 vp8_setup_block_ptrs(x);
613 x->rddiv = cpi->RDDIV;
614 x->rdmult = cpi->RDMULT;
617 // Experimental rd code
618 // 2 Pass - Possibly set Rdmult based on last frame distortion + this frame target bits or other metrics
619 // such as cpi->rate_correction_factor that indicate relative complexity.
620 /*if ( cpi->pass == 2 && (cpi->last_frame_distortion > 0) && (cpi->target_bits_per_mb > 0) )
622 //x->rdmult = ((cpi->last_frame_distortion * 256)/cpi->common.MBs)/ cpi->target_bits_per_mb;
623 x->rdmult = (int)(cpi->RDMULT * cpi->rate_correction_factor);
626 x->rdmult = cpi->RDMULT; */
627 //x->rdmult = (int)(cpi->RDMULT * pow( (cpi->rate_correction_factor * 2.0), 0.75 ));
630 xd->mbmi.mode = DC_PRED;
631 xd->mbmi.uv_mode = DC_PRED;
633 xd->left_context = cm->left_context;
635 vp8_zero(cpi->count_mb_ref_frame_usage)
636 vp8_zero(cpi->ymode_count)
637 vp8_zero(cpi->uv_mode_count)
641 // vp8_zero( entropy_stats)
643 ENTROPY_CONTEXT **p = cm->above_context;
644 const size_t L = cm->mb_cols;
646 vp8_zero_array(p [Y1CONTEXT], L * 4)
647 vp8_zero_array(p [ UCONTEXT], L * 2)
648 vp8_zero_array(p [ VCONTEXT], L * 2)
649 vp8_zero_array(p [Y2CONTEXT], L)
654 struct vpx_usec_timer emr_timer;
655 vpx_usec_timer_start(&emr_timer);
657 if (!cpi->b_multi_threaded)
659 // for each macroblock row in image
660 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
663 vp8_zero(cm->left_context)
665 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
667 // adjust to the next row of mbs
668 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
669 x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
670 x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
673 cpi->tok_count = tp - cpi->tok;
678 #if CONFIG_MULTITHREAD
679 vp8cx_init_mbrthread_data(cpi, x, cpi->mb_row_ei, 1, cpi->encoding_thread_count);
681 for (mb_row = 0; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
684 cpi->current_mb_col_main = -1;
686 for (i = 0; i < cpi->encoding_thread_count; i++)
688 if ((mb_row + i + 1) >= cm->mb_rows)
691 cpi->mb_row_ei[i].mb_row = mb_row + i + 1;
692 cpi->mb_row_ei[i].tp = cpi->tok + (mb_row + i + 1) * (cm->mb_cols * 16 * 24);
693 cpi->mb_row_ei[i].current_mb_col = -1;
694 //SetEvent(cpi->h_event_mbrencoding[i]);
695 sem_post(&cpi->h_event_mbrencoding[i]);
698 vp8_zero(cm->left_context)
700 tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
702 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
704 // adjust to the next row of mbs
705 x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
706 x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
707 x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
709 xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
711 if (mb_row < cm->mb_rows - 1)
712 //WaitForSingleObject(cpi->h_event_main, INFINITE);
713 sem_wait(&cpi->h_event_main);
717 for( ;mb_row<cm->mb_rows; mb_row ++)
719 vp8_zero( cm->left_context)
721 tp = cpi->tok + mb_row * (cm->mb_cols * 16 * 24);
723 encode_mb_row(cpi, cm, mb_row, x, xd, &tp, segment_counts, &totalrate);
724 // adjust to the next row of mbs
725 x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols;
726 x->src.u_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
727 x->src.v_buffer += 8 * x->src.uv_stride - 8 * cm->mb_cols;
733 for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
735 cpi->tok_count += cpi->tplist[mb_row].stop - cpi->tplist[mb_row].start;
738 if (xd->segmentation_enabled)
743 if (xd->segmentation_enabled)
746 for (i = 0; i < cpi->encoding_thread_count; i++)
748 for (j = 0; j < 4; j++)
749 segment_counts[j] += cpi->mb_row_ei[i].segment_counts[j];
755 for (i = 0; i < cpi->encoding_thread_count; i++)
757 totalrate += cpi->mb_row_ei[i].totalrate;
764 vpx_usec_timer_mark(&emr_timer);
765 cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer);
770 // Work out the segment probabilites if segmentation is enabled
771 if (xd->segmentation_enabled)
777 vpx_memset(xd->mb_segment_tree_probs, 255 , sizeof(xd->mb_segment_tree_probs));
779 tot_count = segment_counts[0] + segment_counts[1] + segment_counts[2] + segment_counts[3];
783 xd->mb_segment_tree_probs[0] = ((segment_counts[0] + segment_counts[1]) * 255) / tot_count;
785 tot_count = segment_counts[0] + segment_counts[1];
789 xd->mb_segment_tree_probs[1] = (segment_counts[0] * 255) / tot_count;
792 tot_count = segment_counts[2] + segment_counts[3];
795 xd->mb_segment_tree_probs[2] = (segment_counts[2] * 255) / tot_count;
797 // Zero probabilities not allowed
798 for (i = 0; i < MB_FEATURE_TREE_PROBS; i ++)
800 if (xd->mb_segment_tree_probs[i] == 0)
801 xd->mb_segment_tree_probs[i] = 1;
806 // 256 rate units to the bit
807 cpi->projected_frame_size = totalrate >> 8; // projected_frame_size in units of BYTES
809 // Make a note of the percentage MBs coded Intra.
810 if (cm->frame_type == KEY_FRAME)
812 cpi->this_frame_percent_intra = 100;
818 tot_modes = cpi->count_mb_ref_frame_usage[INTRA_FRAME]
819 + cpi->count_mb_ref_frame_usage[LAST_FRAME]
820 + cpi->count_mb_ref_frame_usage[GOLDEN_FRAME]
821 + cpi->count_mb_ref_frame_usage[ALTREF_FRAME];
824 cpi->this_frame_percent_intra = cpi->count_mb_ref_frame_usage[INTRA_FRAME] * 100 / tot_modes;
831 int flag[2] = {0, 0};
833 for (cnt = 0; cnt < MVPcount; cnt++)
835 if (cm->fc.pre_mvc[0][cnt] != cm->fc.mvc[0][cnt])
838 vpx_memcpy(cm->fc.pre_mvc[0], cm->fc.mvc[0], MVPcount);
843 for (cnt = 0; cnt < MVPcount; cnt++)
845 if (cm->fc.pre_mvc[1][cnt] != cm->fc.mvc[1][cnt])
848 vpx_memcpy(cm->fc.pre_mvc[1], cm->fc.mvc[1], MVPcount);
853 if (flag[0] || flag[1])
854 vp8_build_component_cost_table(cpi->mb.mvcost, cpi->mb.mvsadcost, (const MV_CONTEXT *) cm->fc.mvc, flag);
858 // Adjust the projected reference frame useage probability numbers to reflect
859 // what we have just seen. This may be usefull when we make multiple itterations
860 // of the recode loop rather than continuing to use values from the previous frame.
861 if ((cm->frame_type != KEY_FRAME) && !cm->refresh_alt_ref_frame && !cm->refresh_golden_frame)
863 const int *const rfct = cpi->count_mb_ref_frame_usage;
864 const int rf_intra = rfct[INTRA_FRAME];
865 const int rf_inter = rfct[LAST_FRAME] + rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME];
867 if ((rf_intra + rf_inter) > 0)
869 cpi->prob_intra_coded = (rf_intra * 255) / (rf_intra + rf_inter);
871 if (cpi->prob_intra_coded < 1)
872 cpi->prob_intra_coded = 1;
874 if ((cm->frames_since_golden > 0) || cpi->source_alt_ref_active)
876 cpi->prob_last_coded = rf_inter ? (rfct[LAST_FRAME] * 255) / rf_inter : 128;
878 if (cpi->prob_last_coded < 1)
879 cpi->prob_last_coded = 1;
881 cpi->prob_gf_coded = (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME])
882 ? (rfct[GOLDEN_FRAME] * 255) / (rfct[GOLDEN_FRAME] + rfct[ALTREF_FRAME]) : 128;
884 if (cpi->prob_gf_coded < 1)
885 cpi->prob_gf_coded = 1;
891 // Keep record of the total distortion this time around for future use
892 cpi->last_frame_distortion = cpi->frame_distortion;
896 void vp8_setup_block_ptrs(MACROBLOCK *x)
901 for (r = 0; r < 4; r++)
903 for (c = 0; c < 4; c++)
905 x->block[r*4+c].src_diff = x->src_diff + r * 4 * 16 + c * 4;
909 for (r = 0; r < 2; r++)
911 for (c = 0; c < 2; c++)
913 x->block[16 + r*2+c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4;
918 for (r = 0; r < 2; r++)
920 for (c = 0; c < 2; c++)
922 x->block[20 + r*2+c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4;
926 x->block[24].src_diff = x->src_diff + 384;
929 for (i = 0; i < 25; i++)
931 x->block[i].coeff = x->coeff + i * 16;
935 void vp8_build_block_offsets(MACROBLOCK *x)
940 vp8_build_block_doffsets(&x->e_mbd);
943 for (br = 0; br < 4; br++)
945 for (bc = 0; bc < 4; bc++)
947 BLOCK *this_block = &x->block[block];
948 this_block->base_src = &x->src.y_buffer;
949 this_block->src_stride = x->src.y_stride;
950 this_block->src = 4 * br * this_block->src_stride + 4 * bc;
956 for (br = 0; br < 2; br++)
958 for (bc = 0; bc < 2; bc++)
960 BLOCK *this_block = &x->block[block];
961 this_block->base_src = &x->src.u_buffer;
962 this_block->src_stride = x->src.uv_stride;
963 this_block->src = 4 * br * this_block->src_stride + 4 * bc;
969 for (br = 0; br < 2; br++)
971 for (bc = 0; bc < 2; bc++)
973 BLOCK *this_block = &x->block[block];
974 this_block->base_src = &x->src.v_buffer;
975 this_block->src_stride = x->src.uv_stride;
976 this_block->src = 4 * br * this_block->src_stride + 4 * bc;
982 static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x)
984 const MACROBLOCKD *xd = & x->e_mbd;
985 const MB_PREDICTION_MODE m = xd->mbmi.mode;
986 const MB_PREDICTION_MODE uvm = xd->mbmi.uv_mode;
989 const int is_key = cpi->common.frame_type == KEY_FRAME;
991 ++ (is_key ? uv_modes : inter_uv_modes)[uvm];
995 unsigned int *const bct = is_key ? b_modes : inter_b_modes;
1001 ++ bct[xd->block[b].bmi.mode];
1008 ++cpi->ymode_count[m];
1009 ++cpi->uv_mode_count[uvm];
1012 int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t)
1014 int Error4x4, Error16x16, error_uv;
1015 B_PREDICTION_MODE intra_bmodes[16];
1016 int rate4x4, rate16x16, rateuv;
1017 int dist4x4, dist16x16, distuv;
1019 int rate4x4_tokenonly = 0;
1020 int rate16x16_tokenonly = 0;
1021 int rateuv_tokenonly = 0;
1024 x->e_mbd.mbmi.ref_frame = INTRA_FRAME;
1026 #if !(CONFIG_REALTIME_ONLY)
1028 if (cpi->sf.RD || cpi->compressor_speed != 2)
1030 Error4x4 = vp8_rd_pick_intra4x4mby_modes(cpi, x, &rate4x4, &rate4x4_tokenonly, &dist4x4);
1032 //save the b modes for possible later use
1033 for (i = 0; i < 16; i++)
1034 intra_bmodes[i] = x->e_mbd.block[i].bmi.mode;
1036 Error16x16 = vp8_rd_pick_intra16x16mby_mode(cpi, x, &rate16x16, &rate16x16_tokenonly, &dist16x16);
1038 error_uv = vp8_rd_pick_intra_mbuv_mode(cpi, x, &rateuv, &rateuv_tokenonly, &distuv);
1040 x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
1042 vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
1045 if (Error4x4 < Error16x16)
1048 x->e_mbd.mbmi.mode = B_PRED;
1050 // get back the intra block modes
1051 for (i = 0; i < 16; i++)
1052 x->e_mbd.block[i].bmi.mode = intra_bmodes[i];
1054 vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
1055 cpi->prediction_error += Error4x4 ;
1057 // Experimental RD code
1058 cpi->frame_distortion += dist4x4;
1063 vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
1067 // Experimental RD code
1068 cpi->prediction_error += Error16x16;
1069 cpi->frame_distortion += dist16x16;
1073 sum_intra_stats(cpi, x);
1075 vp8_tokenize_mb(cpi, &x->e_mbd, t);
1081 int rate2, distortion2;
1082 MB_PREDICTION_MODE mode, best_mode = DC_PRED;
1084 Error16x16 = INT_MAX;
1086 for (mode = DC_PRED; mode <= TM_PRED; mode ++)
1088 x->e_mbd.mbmi.mode = mode;
1089 vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
1090 distortion2 = VARIANCE_INVOKE(&cpi->rtcd.variance, get16x16prederror)(x->src.y_buffer, x->src.y_stride, x->e_mbd.predictor, 16, 0x7fffffff);
1091 rate2 = x->mbmode_cost[x->e_mbd.frame_type][mode];
1092 this_rd = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
1094 if (Error16x16 > this_rd)
1096 Error16x16 = this_rd;
1101 vp8_pick_intra4x4mby_modes(IF_RTCD(&cpi->rtcd), x, &rate2, &distortion2);
1103 if (distortion2 == INT_MAX)
1106 Error4x4 = RD_ESTIMATE(x->rdmult, x->rddiv, rate2, distortion2);
1108 x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
1110 if (Error4x4 < Error16x16)
1112 x->e_mbd.mbmi.mode = B_PRED;
1113 vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
1114 cpi->prediction_error += Error4x4;
1118 x->e_mbd.mbmi.mode = best_mode;
1119 vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
1120 cpi->prediction_error += Error16x16;
1123 vp8_pick_intra_mbuv_mode(x);
1124 vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
1125 sum_intra_stats(cpi, x);
1126 vp8_tokenize_mb(cpi, &x->e_mbd, t);
1135 extern void vp8_fix_contexts(VP8_COMP *cpi, MACROBLOCKD *x);
1137 int vp8cx_encode_inter_macroblock
1139 VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t,
1140 int recon_yoffset, int recon_uvoffset
1143 MACROBLOCKD *const xd = &x->e_mbd;
1145 int intra_error = 0;
1151 if (xd->segmentation_enabled)
1152 x->encode_breakout = cpi->segment_encode_breakout[xd->mbmi.segment_id];
1154 x->encode_breakout = cpi->oxcf.encode_breakout;
1156 #if !(CONFIG_REALTIME_ONLY)
1160 inter_error = vp8_rd_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, &distortion, &intra_error);
1164 inter_error = vp8_pick_inter_mode(cpi, x, recon_yoffset, recon_uvoffset, &rate, &distortion, &intra_error);
1167 cpi->prediction_error += inter_error;
1168 cpi->intra_error += intra_error;
1171 // Experimental RD code
1172 cpi->frame_distortion += distortion;
1173 cpi->last_mb_distortion = distortion;
1176 // MB level adjutment to quantizer setup
1177 if (xd->segmentation_enabled || cpi->zbin_mode_boost_enabled)
1179 // If cyclic update enabled
1180 if (cpi->cyclic_refresh_mode_enabled)
1182 // Clear segment_id back to 0 if not coded (last frame 0,0)
1183 if ((xd->mbmi.segment_id == 1) &&
1184 ((xd->mbmi.ref_frame != LAST_FRAME) || (xd->mbmi.mode != ZEROMV)))
1186 xd->mbmi.segment_id = 0;
1190 // Experimental code. Special case for gf and arf zeromv modes. Increase zbin size to supress noise
1191 if (cpi->zbin_mode_boost_enabled)
1193 if ((xd->mbmi.mode == ZEROMV) && (xd->mbmi.ref_frame != LAST_FRAME))
1194 cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST;
1196 cpi->zbin_mode_boost = 0;
1199 vp8cx_mb_init_quantizer(cpi, x);
1202 cpi->count_mb_ref_frame_usage[xd->mbmi.ref_frame] ++;
1204 if (xd->mbmi.ref_frame == INTRA_FRAME)
1206 x->e_mbd.mbmi.mb_skip_coeff = (cpi->common.mb_no_coeff_skip) ? 1 : 0;
1208 vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
1210 if (xd->mbmi.mode == B_PRED)
1212 vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
1216 vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
1219 sum_intra_stats(cpi, x);
1228 vp8_find_near_mvs(xd, xd->mode_info_context,
1229 &nearest, &nearby, &best_ref_mv, mdcounts, xd->mbmi.ref_frame, cpi->common.ref_frame_sign_bias);
1231 vp8_build_uvmvs(xd, cpi->common.full_pixel);
1233 if (xd->mbmi.ref_frame == LAST_FRAME)
1234 ref_fb_idx = cpi->common.lst_fb_idx;
1235 else if (xd->mbmi.ref_frame == GOLDEN_FRAME)
1236 ref_fb_idx = cpi->common.gld_fb_idx;
1238 ref_fb_idx = cpi->common.alt_fb_idx;
1240 xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset;
1241 xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset;
1242 xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset;
1244 if (xd->mbmi.mode == SPLITMV)
1248 for (i = 0; i < 16; i++)
1250 if (xd->block[i].bmi.mode == NEW4X4)
1252 cpi->MVcount[0][mv_max+((xd->block[i].bmi.mv.as_mv.row - best_ref_mv.row) >> 1)]++;
1253 cpi->MVcount[1][mv_max+((xd->block[i].bmi.mv.as_mv.col - best_ref_mv.col) >> 1)]++;
1257 else if (xd->mbmi.mode == NEWMV)
1259 cpi->MVcount[0][mv_max+((xd->block[0].bmi.mv.as_mv.row - best_ref_mv.row) >> 1)]++;
1260 cpi->MVcount[1][mv_max+((xd->block[0].bmi.mv.as_mv.col - best_ref_mv.col) >> 1)]++;
1263 if (!x->skip && !x->e_mbd.mbmi.force_no_skip)
1265 vp8_encode_inter16x16(IF_RTCD(&cpi->rtcd), x);
1267 // Clear mb_skip_coeff if mb_no_coeff_skip is not set
1268 if (!cpi->common.mb_no_coeff_skip)
1269 xd->mbmi.mb_skip_coeff = 0;
1273 vp8_stuff_inter16x16(x);
1277 vp8_tokenize_mb(cpi, xd, t);
1280 if (cpi->common.mb_no_coeff_skip)
1282 if (xd->mbmi.mode != B_PRED && xd->mbmi.mode != SPLITMV)
1283 xd->mbmi.dc_diff = 0;
1285 xd->mbmi.dc_diff = 1;
1287 xd->mbmi.mb_skip_coeff = 1;
1288 cpi->skip_true_count ++;
1289 vp8_fix_contexts(cpi, xd);
1293 vp8_stuff_mb(cpi, xd, t);
1294 xd->mbmi.mb_skip_coeff = 0;
1295 cpi->skip_false_count ++;