encodeintra.c 11.3 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9
10
11
12
 */


#include "vpx_ports/config.h"
John Koleszar's avatar
John Koleszar committed
13
#include "vp8/common/idct.h"
John Koleszar's avatar
John Koleszar committed
14
#include "quantize.h"
John Koleszar's avatar
John Koleszar committed
15
16
#include "vp8/common/reconintra.h"
#include "vp8/common/reconintra4x4.h"
John Koleszar's avatar
John Koleszar committed
17
#include "encodemb.h"
John Koleszar's avatar
John Koleszar committed
18
19
#include "vp8/common/invtrans.h"
#include "vp8/common/recon.h"
John Koleszar's avatar
John Koleszar committed
20
#include "dct.h"
John Koleszar's avatar
John Koleszar committed
21
#include "vp8/common/g_common.h"
John Koleszar's avatar
John Koleszar committed
22
23
24
#include "encodeintra.h"


25
26
27
28
#ifdef ENC_DEBUG
extern int enc_debug;
#endif

John Koleszar's avatar
John Koleszar committed
29
30
31
32
33
#if CONFIG_RUNTIME_CPU_DETECT
#define IF_RTCD(x) (x)
#else
#define IF_RTCD(x) NULL
#endif
34

Jingning Han's avatar
Jingning Han committed
35
36
37
#if CONFIG_HYBRIDTRANSFORM
extern void vp8_ht_quantize_b(BLOCK *b, BLOCKD *d);
#endif
Tero Rintaluoma's avatar
Tero Rintaluoma committed
38

Jingning Han's avatar
Jingning Han committed
39
int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_16x16_pred) {
John Koleszar's avatar
John Koleszar committed
40
41
  int i;
  int intra_pred_var = 0;
Paul Wilkins's avatar
Paul Wilkins committed
42
  MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi;
John Koleszar's avatar
John Koleszar committed
43
  (void) cpi;
Tero Rintaluoma's avatar
Tero Rintaluoma committed
44

John Koleszar's avatar
John Koleszar committed
45
  if (use_16x16_pred) {
Paul Wilkins's avatar
Paul Wilkins committed
46
    mbmi->mode = DC_PRED;
47
#if CONFIG_COMP_INTRA_PRED
Paul Wilkins's avatar
Paul Wilkins committed
48
    mbmi->second_mode = (MB_PREDICTION_MODE)(DC_PRED - 1);
49
#endif
Paul Wilkins's avatar
Paul Wilkins committed
50
51
    mbmi->uv_mode = DC_PRED;
    mbmi->ref_frame = INTRA_FRAME;
John Koleszar's avatar
John Koleszar committed
52
53
54
55
56
57

    vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
  } else {
    for (i = 0; i < 16; i++) {
      x->e_mbd.block[i].bmi.as_mode.first = B_DC_PRED;
      vp8_encode_intra4x4block(IF_RTCD(&cpi->rtcd), x, i);
Tero Rintaluoma's avatar
Tero Rintaluoma committed
58
    }
John Koleszar's avatar
John Koleszar committed
59
  }
Tero Rintaluoma's avatar
Tero Rintaluoma committed
60

John Koleszar's avatar
John Koleszar committed
61
  intra_pred_var = VARIANCE_INVOKE(&cpi->rtcd.variance, getmbss)(x->src_diff);
Tero Rintaluoma's avatar
Tero Rintaluoma committed
62

John Koleszar's avatar
John Koleszar committed
63
  return intra_pred_var;
Tero Rintaluoma's avatar
Tero Rintaluoma committed
64
}
65
66

void vp8_encode_intra4x4block(const VP8_ENCODER_RTCD *rtcd,
John Koleszar's avatar
John Koleszar committed
67
68
69
                              MACROBLOCK *x, int ib) {
  BLOCKD *b = &x->e_mbd.block[ib];
  BLOCK *be = &x->block[ib];
70

Jingning Han's avatar
Jingning Han committed
71
72
73
74
75
76
#if CONFIG_HYBRIDTRANSFORM
    int QIndex = x->q_index;
    int active_ht = (QIndex < ACTIVE_HT);
#endif


77
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
78
  if (b->bmi.as_mode.second == (B_PREDICTION_MODE)(B_DC_PRED - 1)) {
79
#endif
80
    RECON_INVOKE(&rtcd->common->recon, intra4x4_predict)
John Koleszar's avatar
John Koleszar committed
81
    (b, b->bmi.as_mode.first, b->predictor);
82
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
83
84
85
86
  } else {
    RECON_INVOKE(&rtcd->common->recon, comp_intra4x4_predict)
    (b, b->bmi.as_mode.first, b->bmi.as_mode.second, b->predictor);
  }
87
#endif
John Koleszar's avatar
John Koleszar committed
88

John Koleszar's avatar
John Koleszar committed
89
  ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
John Koleszar's avatar
John Koleszar committed
90

Jingning Han's avatar
Jingning Han committed
91
92
93
#if CONFIG_HYBRIDTRANSFORM
    if(active_ht) {
      b->bmi.as_mode.test = b->bmi.as_mode.first;
94
      txfm_map(b, b->bmi.as_mode.first);
95
      vp8_fht_c(be->src_diff, be->coeff, 32, b->bmi.as_mode.tx_type, 4);
Jingning Han's avatar
Jingning Han committed
96
97
98
99
100
101
102
103
104
105
106
107
      vp8_ht_quantize_b(be, b);
      vp8_inverse_htransform_b(IF_RTCD(&rtcd->common->idct), b, 32) ;
    } else {
      x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32) ;
      x->quantize_b(be, b) ;
      vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32) ;
    }
#else
    x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
    x->quantize_b(be, b);
    vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32);
#endif
John Koleszar's avatar
John Koleszar committed
108

John Koleszar's avatar
John Koleszar committed
109
  RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
John Koleszar's avatar
John Koleszar committed
110
111
}

John Koleszar's avatar
John Koleszar committed
112
113
void vp8_encode_intra4x4mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb) {
  int i;
John Koleszar's avatar
John Koleszar committed
114

Adrian Grange's avatar
Adrian Grange committed
115
#if 0
Paul Wilkins's avatar
Paul Wilkins committed
116
  MACROBLOCKD *xd = &mb->e_mbd;
John Koleszar's avatar
John Koleszar committed
117
  // Intra modes requiring top-right MB reconstructed data have been disabled
Paul Wilkins's avatar
Paul Wilkins committed
118
  vp8_intra_prediction_down_copy(xd);
Adrian Grange's avatar
Adrian Grange committed
119
#endif
John Koleszar's avatar
John Koleszar committed
120

John Koleszar's avatar
John Koleszar committed
121
122
123
  for (i = 0; i < 16; i++)
    vp8_encode_intra4x4block(rtcd, mb, i);
  return;
John Koleszar's avatar
John Koleszar committed
124
125
}

John Koleszar's avatar
John Koleszar committed
126
127
void vp8_encode_intra16x16mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x) {
  BLOCK *b = &x->block[0];
John Koleszar's avatar
John Koleszar committed
128

John Koleszar's avatar
John Koleszar committed
129
  int tx_type = x->e_mbd.mode_info_context->mbmi.txfm_size;
Paul Wilkins's avatar
Paul Wilkins committed
130

131
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
132
  if (x->e_mbd.mode_info_context->mbmi.second_mode == (MB_PREDICTION_MODE)(DC_PRED - 1))
133
#endif
134
    RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_mby)(&x->e_mbd);
135
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
136
137
  else
    RECON_INVOKE(&rtcd->common->recon, build_comp_intra_predictors_mby)(&x->e_mbd);
138
#endif
John Koleszar's avatar
John Koleszar committed
139

John Koleszar's avatar
John Koleszar committed
140
  ENCODEMB_INVOKE(&rtcd->encodemb, submby)(x->src_diff, *(b->base_src), x->e_mbd.predictor, b->src_stride);
Paul Wilkins's avatar
Paul Wilkins committed
141

Daniel Kang's avatar
Daniel Kang committed
142
143
144
145
146
#if CONFIG_TX16X16
  if (tx_type == TX_16X16)
    vp8_transform_intra_mby_16x16(x);
  else
#endif
John Koleszar's avatar
John Koleszar committed
147
148
149
150
  if (tx_type == TX_8X8)
    vp8_transform_intra_mby_8x8(x);
  else
    vp8_transform_intra_mby(x);
John Koleszar's avatar
John Koleszar committed
151

Daniel Kang's avatar
Daniel Kang committed
152
153
154
155
156
#if CONFIG_TX16X16
  if (tx_type == TX_16X16)
    vp8_quantize_mby_16x16(x);
  else
#endif
John Koleszar's avatar
John Koleszar committed
157
158
159
160
  if (tx_type == TX_8X8)
    vp8_quantize_mby_8x8(x);
  else
    vp8_quantize_mby(x);
John Koleszar's avatar
John Koleszar committed
161

John Koleszar's avatar
John Koleszar committed
162
  if (x->optimize) {
Daniel Kang's avatar
Daniel Kang committed
163
164
165
166
167
#if CONFIG_TX16X16
    if (tx_type == TX_16X16)
      vp8_optimize_mby_16x16(x, rtcd);
    else
#endif
John Koleszar's avatar
John Koleszar committed
168
169
    if (tx_type == TX_8X8)
      vp8_optimize_mby_8x8(x, rtcd);
170
    else
John Koleszar's avatar
John Koleszar committed
171
172
173
      vp8_optimize_mby(x, rtcd);
  }

Daniel Kang's avatar
Daniel Kang committed
174
175
176
177
178
#if CONFIG_TX16X16
  if (tx_type == TX_16X16)
    vp8_inverse_transform_mby_16x16(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
  else
#endif
John Koleszar's avatar
John Koleszar committed
179
180
181
182
  if (tx_type == TX_8X8)
    vp8_inverse_transform_mby_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
  else
    vp8_inverse_transform_mby(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
183
184

#ifdef ENC_DEBUG
John Koleszar's avatar
John Koleszar committed
185
186
187
188
189
190
191
192
193
194
195
196
  if (enc_debug) {
    int i;
    printf("Intra qcoeff:\n");
    printf("%d %d:\n", x->e_mbd.mb_to_left_edge, x->e_mbd.mb_to_top_edge);
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.qcoeff[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("Intra dqcoeff:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.dqcoeff[i]);
      if (i % 16 == 15) printf("\n");
197
    }
John Koleszar's avatar
John Koleszar committed
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
    printf("Intra diff:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.diff[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("Intra predictor:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.predictor[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("eobs:\n");
    for (i = 0; i < 25; i++)
      printf("%d ", x->e_mbd.block[i].eob);
    printf("\n");
  }
213
#endif
John Koleszar's avatar
John Koleszar committed
214

John Koleszar's avatar
John Koleszar committed
215
216
  RECON_INVOKE(&rtcd->common->recon, recon_mby)
  (IF_RTCD(&rtcd->common->recon), &x->e_mbd);
John Koleszar's avatar
John Koleszar committed
217
218
219

}

John Koleszar's avatar
John Koleszar committed
220
221
void vp8_encode_intra16x16mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x) {
  int tx_type = x->e_mbd.mode_info_context->mbmi.txfm_size;
Daniel Kang's avatar
Daniel Kang committed
222
223
224
#if CONFIG_TX16X16
  if (tx_type == TX_16X16) tx_type = TX_8X8; // 16x16 for U and V should default to 8x8 behavior.
#endif
225
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
226
  if (x->e_mbd.mode_info_context->mbmi.second_uv_mode == (MB_PREDICTION_MODE)(DC_PRED - 1)) {
Paul Wilkins's avatar
Paul Wilkins committed
227
#endif
228
    RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_mbuv)(&x->e_mbd);
229
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
230
231
232
  } else {
    RECON_INVOKE(&rtcd->common->recon, build_comp_intra_predictors_mbuv)(&x->e_mbd);
  }
233
#endif
John Koleszar's avatar
John Koleszar committed
234

John Koleszar's avatar
John Koleszar committed
235
236
237
238
239
  ENCODEMB_INVOKE(&rtcd->encodemb, submbuv)(x->src_diff, x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
  if (tx_type == TX_8X8)
    vp8_transform_mbuv_8x8(x);
  else
    vp8_transform_mbuv(x);
John Koleszar's avatar
John Koleszar committed
240

John Koleszar's avatar
John Koleszar committed
241
242
243
244
  if (tx_type == TX_8X8)
    vp8_quantize_mbuv_8x8(x);
  else
    vp8_quantize_mbuv(x);
245
246

#ifdef ENC_DEBUG
John Koleszar's avatar
John Koleszar committed
247
248
249
250
251
252
253
254
  if (enc_debug) {
    int i;
    printf("vp8_encode_intra16x16mbuv\n");
    printf("%d %d:\n", x->e_mbd.mb_to_left_edge, x->e_mbd.mb_to_top_edge);
    printf("qcoeff:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.qcoeff[i]);
      if (i % 16 == 15) printf("\n");
255
    }
John Koleszar's avatar
John Koleszar committed
256
257
258
259
    printf("dqcoeff:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.dqcoeff[i]);
      if (i % 16 == 15) printf("\n");
260
    }
John Koleszar's avatar
John Koleszar committed
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
    printf("diff:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.diff[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("predictor:\n");
    for (i = 0; i < 400; i++) {
      printf("%3d ", x->e_mbd.predictor[i]);
      if (i % 16 == 15) printf("\n");
    }
    printf("eobs:\n");
    for (i = 0; i < 25; i++)
      printf("%d ", x->e_mbd.block[i].eob);
    printf("\n");
  }
#endif
  if (x->optimize) {
    if (tx_type == TX_8X8)
      vp8_optimize_mbuv_8x8(x, rtcd);
280
    else
John Koleszar's avatar
John Koleszar committed
281
282
283
284
285
286
287
      vp8_optimize_mbuv(x, rtcd);
  }

  if (tx_type == TX_8X8)
    vp8_inverse_transform_mbuv_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
  else
    vp8_inverse_transform_mbuv(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
John Koleszar's avatar
John Koleszar committed
288

John Koleszar's avatar
John Koleszar committed
289
  vp8_recon_intra_mbuv(IF_RTCD(&rtcd->common->recon), &x->e_mbd);
John Koleszar's avatar
John Koleszar committed
290
}
Yaowu Xu's avatar
Yaowu Xu committed
291
292

void vp8_encode_intra8x8(const VP8_ENCODER_RTCD *rtcd,
John Koleszar's avatar
John Koleszar committed
293
294
295
296
297
                         MACROBLOCK *x, int ib) {
  BLOCKD *b = &x->e_mbd.block[ib];
  BLOCK *be = &x->block[ib];
  const int iblock[4] = {0, 1, 4, 5};
  int i;
Yaowu Xu's avatar
Yaowu Xu committed
298

299
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
300
  if (b->bmi.as_mode.second == (MB_PREDICTION_MODE)(DC_PRED - 1)) {
301
#endif
Yaowu Xu's avatar
Yaowu Xu committed
302
    RECON_INVOKE(&rtcd->common->recon, intra8x8_predict)
John Koleszar's avatar
John Koleszar committed
303
    (b, b->bmi.as_mode.first, b->predictor);
304
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
305
306
307
308
  } else {
    RECON_INVOKE(&rtcd->common->recon, comp_intra8x8_predict)
    (b, b->bmi.as_mode.first, b->bmi.as_mode.second, b->predictor);
  }
309
#endif
Yaowu Xu's avatar
Yaowu Xu committed
310

311
#if CONFIG_HYBRIDTRANSFORM8X8
312
313
314
315
316
317
  {
    MACROBLOCKD *xd = &x->e_mbd;
    int idx = (ib & 0x02) ? (ib + 2) : ib;

    // generate residual blocks
    vp8_subtract_4b_c(be, b, 16);
318
319

    txfm_map(b, pred_mode_conv(b->bmi.as_mode.first));
320
321
    vp8_fht_c(be->src_diff, (x->block + idx)->coeff, 32,
              b->bmi.as_mode.tx_type, 8);
322
    x->quantize_b_8x8(x->block + idx, xd->block + idx);
323
324
    vp8_ihtllm_c(xd->block[idx].dqcoeff, xd->block[ib].diff, 32,
                 b->bmi.as_mode.tx_type, 8);
325
326
327
328
329
330
331
332
333

    // reconstruct submacroblock
    for (i = 0; i < 4; i++) {
      b = &xd->block[ib + iblock[i]];
      vp8_recon_b_c(b->predictor, b->diff, *(b->base_dst) + b->dst,
                    b->dst_stride);
    }
  }
#else
John Koleszar's avatar
John Koleszar committed
334
335
336
337
338
339
340
341
  for (i = 0; i < 4; i++) {
    b = &x->e_mbd.block[ib + iblock[i]];
    be = &x->block[ib + iblock[i]];
    ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
    x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
    x->quantize_b(be, b);
    vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32);
    RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor,
342
343
                                              b->diff, *(b->base_dst) + b->dst,
                                              b->dst_stride);
John Koleszar's avatar
John Koleszar committed
344
  }
345
#endif
Yaowu Xu's avatar
Yaowu Xu committed
346
347
348
}

extern const int vp8_i8x8_block[4];
John Koleszar's avatar
John Koleszar committed
349
350
351
352
353
354
355
void vp8_encode_intra8x8mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x) {
  int i, ib;

  for (i = 0; i < 4; i++) {
    ib = vp8_i8x8_block[i];
    vp8_encode_intra8x8(rtcd, x, ib);
  }
Yaowu Xu's avatar
Yaowu Xu committed
356
357
358
359

}

void vp8_encode_intra_uv4x4(const VP8_ENCODER_RTCD *rtcd,
John Koleszar's avatar
John Koleszar committed
360
361
362
363
                            MACROBLOCK *x, int ib,
                            int mode, int second) {
  BLOCKD *b = &x->e_mbd.block[ib];
  BLOCK *be = &x->block[ib];
Yaowu Xu's avatar
Yaowu Xu committed
364

365
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
366
  if (second == -1) {
367
#endif
Yaowu Xu's avatar
Yaowu Xu committed
368
    RECON_INVOKE(&rtcd->common->recon, intra_uv4x4_predict)
John Koleszar's avatar
John Koleszar committed
369
    (b, mode, b->predictor);
370
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
371
372
373
374
  } else {
    RECON_INVOKE(&rtcd->common->recon, comp_intra_uv4x4_predict)
    (b, mode, second, b->predictor);
  }
375
#endif
Yaowu Xu's avatar
Yaowu Xu committed
376

John Koleszar's avatar
John Koleszar committed
377
  ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 8);
Yaowu Xu's avatar
Yaowu Xu committed
378

John Koleszar's avatar
John Koleszar committed
379
  x->vp8_short_fdct4x4(be->src_diff, be->coeff, 16);
Yaowu Xu's avatar
Yaowu Xu committed
380

John Koleszar's avatar
John Koleszar committed
381
  x->quantize_b(be, b);
Yaowu Xu's avatar
Yaowu Xu committed
382

John Koleszar's avatar
John Koleszar committed
383
  vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 16);
Yaowu Xu's avatar
Yaowu Xu committed
384

John Koleszar's avatar
John Koleszar committed
385
386
  RECON_INVOKE(&rtcd->common->recon, recon_uv)(b->predictor,
                                               b->diff, *(b->base_dst) + b->dst, b->dst_stride);
Yaowu Xu's avatar
Yaowu Xu committed
387
388
389
390
}



John Koleszar's avatar
John Koleszar committed
391
392
393
394
395
396
397
void vp8_encode_intra8x8mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x) {
  int i, ib, mode, second;
  BLOCKD *b;
  for (i = 0; i < 4; i++) {
    ib = vp8_i8x8_block[i];
    b = &x->e_mbd.block[ib];
    mode = b->bmi.as_mode.first;
398
#if CONFIG_COMP_INTRA_PRED
John Koleszar's avatar
John Koleszar committed
399
    second = b->bmi.as_mode.second;
400
#else
John Koleszar's avatar
John Koleszar committed
401
    second = -1;
402
#endif
John Koleszar's avatar
John Koleszar committed
403
404
405
406
407
    /*u */
    vp8_encode_intra_uv4x4(rtcd, x, i + 16, mode, second);
    /*v */
    vp8_encode_intra_uv4x4(rtcd, x, i + 20, mode, second);
  }
Yaowu Xu's avatar
Yaowu Xu committed
408
}