vp9_loopfilter.c 15.5 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
 */

Attila Nagy's avatar
Attila Nagy committed
11
#include "vpx_config.h"
12
13
#include "vp9/common/vp9_loopfilter.h"
#include "vp9/common/vp9_onyxc_int.h"
Attila Nagy's avatar
Attila Nagy committed
14
#include "vpx_mem/vpx_mem.h"
John Koleszar's avatar
John Koleszar committed
15

16
#include "vp9/common/vp9_seg_common.h"
17

John Koleszar's avatar
John Koleszar committed
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
static void lf_init_lut(loop_filter_info_n *lfi) {
  int filt_lvl;

  for (filt_lvl = 0; filt_lvl <= MAX_LOOP_FILTER; filt_lvl++) {
    if (filt_lvl >= 40) {
      lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 2;
      lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 3;
    } else if (filt_lvl >= 20) {
      lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
      lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 2;
    } else if (filt_lvl >= 15) {
      lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
      lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 1;
    } else {
      lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 0;
      lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 0;
Attila Nagy's avatar
Attila Nagy committed
34
    }
John Koleszar's avatar
John Koleszar committed
35
  }
Attila Nagy's avatar
Attila Nagy committed
36

John Koleszar's avatar
John Koleszar committed
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
  lfi->mode_lf_lut[DC_PRED] = 1;
  lfi->mode_lf_lut[D45_PRED] = 1;
  lfi->mode_lf_lut[D135_PRED] = 1;
  lfi->mode_lf_lut[D117_PRED] = 1;
  lfi->mode_lf_lut[D153_PRED] = 1;
  lfi->mode_lf_lut[D27_PRED] = 1;
  lfi->mode_lf_lut[D63_PRED] = 1;
  lfi->mode_lf_lut[V_PRED] = 1;
  lfi->mode_lf_lut[H_PRED] = 1;
  lfi->mode_lf_lut[TM_PRED] = 1;
  lfi->mode_lf_lut[B_PRED]  = 0;
  lfi->mode_lf_lut[I8X8_PRED] = 0;
  lfi->mode_lf_lut[ZEROMV]  = 1;
  lfi->mode_lf_lut[NEARESTMV] = 2;
  lfi->mode_lf_lut[NEARMV] = 2;
  lfi->mode_lf_lut[NEWMV] = 2;
  lfi->mode_lf_lut[SPLITMV] = 3;
Attila Nagy's avatar
Attila Nagy committed
54
55
}

56
void vp9_loop_filter_update_sharpness(loop_filter_info_n *lfi,
John Koleszar's avatar
John Koleszar committed
57
58
59
60
61
62
63
                                      int sharpness_lvl) {
  int i;

  /* For each possible value for the loop filter fill out limits */
  for (i = 0; i <= MAX_LOOP_FILTER; i++) {
    int filt_lvl = i;
    int block_inside_limit = 0;
John Koleszar's avatar
John Koleszar committed
64

John Koleszar's avatar
John Koleszar committed
65
66
67
    /* Set loop filter paramaeters that control sharpness. */
    block_inside_limit = filt_lvl >> (sharpness_lvl > 0);
    block_inside_limit = block_inside_limit >> (sharpness_lvl > 4);
John Koleszar's avatar
John Koleszar committed
68

John Koleszar's avatar
John Koleszar committed
69
70
71
    if (sharpness_lvl > 0) {
      if (block_inside_limit > (9 - sharpness_lvl))
        block_inside_limit = (9 - sharpness_lvl);
John Koleszar's avatar
John Koleszar committed
72
    }
John Koleszar's avatar
John Koleszar committed
73
74
75
76
77
78
79
80
81
82

    if (block_inside_limit < 1)
      block_inside_limit = 1;

    vpx_memset(lfi->lim[i], block_inside_limit, SIMD_WIDTH);
    vpx_memset(lfi->blim[i], (2 * filt_lvl + block_inside_limit),
               SIMD_WIDTH);
    vpx_memset(lfi->mblim[i], (2 * (filt_lvl + 2) + block_inside_limit),
               SIMD_WIDTH);
  }
Attila Nagy's avatar
Attila Nagy committed
83
}
John Koleszar's avatar
John Koleszar committed
84

85
void vp9_loop_filter_init(VP9_COMMON *cm) {
John Koleszar's avatar
John Koleszar committed
86
87
  loop_filter_info_n *lfi = &cm->lf_info;
  int i;
Attila Nagy's avatar
Attila Nagy committed
88

John Koleszar's avatar
John Koleszar committed
89
  /* init limits for given sharpness*/
90
  vp9_loop_filter_update_sharpness(lfi, cm->sharpness_level);
John Koleszar's avatar
John Koleszar committed
91
  cm->last_sharpness_level = cm->sharpness_level;
Attila Nagy's avatar
Attila Nagy committed
92

John Koleszar's avatar
John Koleszar committed
93
94
  /* init LUT for lvl  and hev thr picking */
  lf_init_lut(lfi);
Attila Nagy's avatar
Attila Nagy committed
95

John Koleszar's avatar
John Koleszar committed
96
97
98
99
  /* init hev threshold const vectors */
  for (i = 0; i < 4; i++) {
    vpx_memset(lfi->hev_thr[i], i, SIMD_WIDTH);
  }
John Koleszar's avatar
John Koleszar committed
100
101
}

102
void vp9_loop_filter_frame_init(VP9_COMMON *cm,
103
                                MACROBLOCKD *xd,
John Koleszar's avatar
John Koleszar committed
104
105
106
107
                                int default_filt_lvl) {
  int seg,  /* segment number */
      ref,  /* index in ref_lf_deltas */
      mode; /* index in mode_lf_deltas */
John Koleszar's avatar
John Koleszar committed
108

John Koleszar's avatar
John Koleszar committed
109
  loop_filter_info_n *lfi = &cm->lf_info;
John Koleszar's avatar
John Koleszar committed
110

John Koleszar's avatar
John Koleszar committed
111
  /* update limits if sharpness has changed */
112
113
114
  // printf("vp9_loop_filter_frame_init %d\n", default_filt_lvl);
  // printf("sharpness level: %d [%d]\n",
  //        cm->sharpness_level, cm->last_sharpness_level);
John Koleszar's avatar
John Koleszar committed
115
  if (cm->last_sharpness_level != cm->sharpness_level) {
116
    vp9_loop_filter_update_sharpness(lfi, cm->sharpness_level);
John Koleszar's avatar
John Koleszar committed
117
118
119
120
121
122
123
124
125
    cm->last_sharpness_level = cm->sharpness_level;
  }

  for (seg = 0; seg < MAX_MB_SEGMENTS; seg++) {
    int lvl_seg = default_filt_lvl;
    int lvl_ref, lvl_mode;


    // Set the baseline filter values for each segment
126
    if (vp9_segfeature_active(xd, seg, SEG_LVL_ALT_LF)) {
John Koleszar's avatar
John Koleszar committed
127
128
      /* Abs value */
      if (xd->mb_segment_abs_delta == SEGMENT_ABSDATA) {
129
        lvl_seg = vp9_get_segdata(xd, seg, SEG_LVL_ALT_LF);
John Koleszar's avatar
John Koleszar committed
130
      } else { /* Delta Value */
131
        lvl_seg += vp9_get_segdata(xd, seg, SEG_LVL_ALT_LF);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
132
        lvl_seg = clamp(lvl_seg, 0, 63);
John Koleszar's avatar
John Koleszar committed
133
134
      }
    }
John Koleszar's avatar
John Koleszar committed
135

John Koleszar's avatar
John Koleszar committed
136
137
138
139
140
141
142
    if (!xd->mode_ref_lf_delta_enabled) {
      /* we could get rid of this if we assume that deltas are set to
       * zero when not in use; encoder always uses deltas
       */
      vpx_memset(lfi->lvl[seg][0], lvl_seg, 4 * 4);
      continue;
    }
John Koleszar's avatar
John Koleszar committed
143

John Koleszar's avatar
John Koleszar committed
144
    lvl_ref = lvl_seg;
John Koleszar's avatar
John Koleszar committed
145

John Koleszar's avatar
John Koleszar committed
146
147
    /* INTRA_FRAME */
    ref = INTRA_FRAME;
John Koleszar's avatar
John Koleszar committed
148

John Koleszar's avatar
John Koleszar committed
149
150
    /* Apply delta for reference frame */
    lvl_ref += xd->ref_lf_deltas[ref];
Attila Nagy's avatar
Attila Nagy committed
151

John Koleszar's avatar
John Koleszar committed
152
153
154
    /* Apply delta for Intra modes */
    mode = 0; /* B_PRED */
    /* Only the split mode BPRED has a further special case */
Dmitry Kovalev's avatar
Dmitry Kovalev committed
155
    lvl_mode = clamp(lvl_ref +  xd->mode_lf_deltas[mode], 0, 63);
Attila Nagy's avatar
Attila Nagy committed
156

John Koleszar's avatar
John Koleszar committed
157
    lfi->lvl[seg][ref][mode] = lvl_mode;
Attila Nagy's avatar
Attila Nagy committed
158

John Koleszar's avatar
John Koleszar committed
159
    mode = 1; /* all the rest of Intra modes */
Dmitry Kovalev's avatar
Dmitry Kovalev committed
160
    lvl_mode = clamp(lvl_ref, 0, 63);
John Koleszar's avatar
John Koleszar committed
161
    lfi->lvl[seg][ref][mode] = lvl_mode;
John Koleszar's avatar
John Koleszar committed
162

John Koleszar's avatar
John Koleszar committed
163
164
165
    /* LAST, GOLDEN, ALT */
    for (ref = 1; ref < MAX_REF_FRAMES; ref++) {
      int lvl_ref = lvl_seg;
John Koleszar's avatar
John Koleszar committed
166

John Koleszar's avatar
John Koleszar committed
167
168
      /* Apply delta for reference frame */
      lvl_ref += xd->ref_lf_deltas[ref];
John Koleszar's avatar
John Koleszar committed
169

John Koleszar's avatar
John Koleszar committed
170
171
      /* Apply delta for Inter modes */
      for (mode = 1; mode < 4; mode++) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
172
        lvl_mode = clamp(lvl_ref + xd->mode_lf_deltas[mode], 0, 63);
John Koleszar's avatar
John Koleszar committed
173
174
        lfi->lvl[seg][ref][mode] = lvl_mode;
      }
John Koleszar's avatar
John Koleszar committed
175
    }
John Koleszar's avatar
John Koleszar committed
176
  }
John Koleszar's avatar
John Koleszar committed
177
178
}

Yaowu Xu's avatar
Yaowu Xu committed
179
180
181
182
// Determine if we should skip inner-MB loop filtering within a MB
// The current condition is that the loop filtering is skipped only
// the MB uses a prediction size of 16x16 and either 16x16 transform
// is used or there is no residue at all.
183
184
185
186
187
static int mb_lf_skip(const MB_MODE_INFO *const mbmi) {
  const MB_PREDICTION_MODE mode = mbmi->mode;
  const int skip_coef = mbmi->mb_skip_coeff;
  const int tx_size = mbmi->txfm_size;
  return mode != B_PRED && mode != I8X8_PRED && mode != SPLITMV &&
Yaowu Xu's avatar
Yaowu Xu committed
188
         (tx_size >= TX_16X16 || skip_coef);
189
}
Yaowu Xu's avatar
Yaowu Xu committed
190
191
192
193
194

// Determine if we should skip MB loop filtering on a MB edge within
// a superblock, the current condition is that MB loop filtering is
// skipped only when both MBs do not use inner MB loop filtering, and
// same motion vector with same reference frame
195
196
static int sb_mb_lf_skip(const MODE_INFO *const mip0,
                         const MODE_INFO *const mip1) {
Yaowu Xu's avatar
Yaowu Xu committed
197
198
199
200
201
202
203
  const MB_MODE_INFO *mbmi0 = &mip0->mbmi;
  const MB_MODE_INFO *mbmi1 = &mip0->mbmi;
  return mb_lf_skip(mbmi0) && mb_lf_skip(mbmi1) &&
         (mbmi0->ref_frame == mbmi1->ref_frame) &&
         (mbmi0->mv[mbmi0->ref_frame].as_int ==
          mbmi1->mv[mbmi1->ref_frame].as_int) &&
         mbmi0->ref_frame != INTRA_FRAME;
204
}
205

206
207
208
209
void vp9_loop_filter_frame(VP9_COMMON *cm,
                           MACROBLOCKD *xd,
                           int frame_filter_level,
                           int y_only) {
John Koleszar's avatar
John Koleszar committed
210
211
  YV12_BUFFER_CONFIG *post = cm->frame_to_show;
  loop_filter_info_n *lfi_n = &cm->lf_info;
212
  struct loop_filter_info lfi;
213
214
  const FRAME_TYPE frame_type = cm->frame_type;
  int mb_row, mb_col;
215
  uint8_t *y_ptr, *u_ptr, *v_ptr;
John Koleszar's avatar
John Koleszar committed
216
217
218

  /* Point at base of Mb MODE_INFO list */
  const MODE_INFO *mode_info_context = cm->mi;
219
  const int mis = cm->mode_info_stride;
John Koleszar's avatar
John Koleszar committed
220
221

  /* Initialize the loop filter for this frame. */
222
  vp9_loop_filter_frame_init(cm, xd, frame_filter_level);
John Koleszar's avatar
John Koleszar committed
223
224
  /* Set up the buffer pointers */
  y_ptr = post->y_buffer;
225
226
227
228
229
230
231
  if (y_only) {
    u_ptr = 0;
    v_ptr = 0;
  } else {
    u_ptr = post->u_buffer;
    v_ptr = post->v_buffer;
  }
John Koleszar's avatar
John Koleszar committed
232

233
  /* vp9_filter each macro block */
John Koleszar's avatar
John Koleszar committed
234
235
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
236
237
      const MB_PREDICTION_MODE mode = mode_info_context->mbmi.mode;
      const int mode_index = lfi_n->mode_lf_lut[mode];
John Koleszar's avatar
John Koleszar committed
238
239
      const int seg = mode_info_context->mbmi.segment_id;
      const int ref_frame = mode_info_context->mbmi.ref_frame;
240
      const int filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
John Koleszar's avatar
John Koleszar committed
241
      if (filter_level) {
242
243
        const int skip_lf = mb_lf_skip(&mode_info_context->mbmi);
        const int tx_size = mode_info_context->mbmi.txfm_size;
John Koleszar's avatar
John Koleszar committed
244
245
246
247
248
249
250
        if (cm->filter_type == NORMAL_LOOPFILTER) {
          const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
          lfi.mblim = lfi_n->mblim[filter_level];
          lfi.blim = lfi_n->blim[filter_level];
          lfi.lim = lfi_n->lim[filter_level];
          lfi.hev_thr = lfi_n->hev_thr[hev_index];

Yaowu Xu's avatar
Yaowu Xu committed
251
252
253
254
          if (mb_col > 0 &&
              !((mb_col & 1) && mode_info_context->mbmi.sb_type &&
                (sb_mb_lf_skip(mode_info_context - 1, mode_info_context) ||
                 tx_size >= TX_32X32))
255
256
              ) {
            if (tx_size >= TX_16X16)
257
              vp9_lpf_mbv_w(y_ptr, u_ptr, v_ptr, post->y_stride,
258
                            post->uv_stride, &lfi);
259
            else
260
              vp9_loop_filter_mbv(y_ptr, u_ptr, v_ptr, post->y_stride,
261
                                  post->uv_stride, &lfi);
262
          }
263
          if (!skip_lf) {
264
265
            if (tx_size >= TX_8X8) {
              if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
266
                vp9_loop_filter_bv8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
267
268
                                      post->uv_stride, &lfi);
              else
269
                vp9_loop_filter_bv8x8(y_ptr, NULL, NULL, post->y_stride,
270
271
                                      post->uv_stride, &lfi);
            } else {
272
              vp9_loop_filter_bv(y_ptr, u_ptr, v_ptr, post->y_stride,
273
                                 post->uv_stride, &lfi);
274
            }
John Koleszar's avatar
John Koleszar committed
275
276
          }
          /* don't apply across umv border */
Yaowu Xu's avatar
Yaowu Xu committed
277
278
279
280
          if (mb_row > 0 &&
              !((mb_row & 1) && mode_info_context->mbmi.sb_type &&
                (sb_mb_lf_skip(mode_info_context - mis, mode_info_context) ||
                tx_size >= TX_32X32))
281
282
              ) {
            if (tx_size >= TX_16X16)
283
              vp9_lpf_mbh_w(y_ptr, u_ptr, v_ptr, post->y_stride,
284
                            post->uv_stride, &lfi);
285
            else
286
              vp9_loop_filter_mbh(y_ptr, u_ptr, v_ptr, post->y_stride,
287
                                  post->uv_stride, &lfi);
288
          }
289
          if (!skip_lf) {
290
291
            if (tx_size >= TX_8X8) {
              if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
292
                vp9_loop_filter_bh8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
293
294
                                      post->uv_stride, &lfi);
              else
295
                vp9_loop_filter_bh8x8(y_ptr, NULL, NULL, post->y_stride,
296
297
                                      post->uv_stride, &lfi);
            } else {
298
              vp9_loop_filter_bh(y_ptr, u_ptr, v_ptr, post->y_stride,
299
                                 post->uv_stride, &lfi);
300
            }
John Koleszar's avatar
John Koleszar committed
301
302
          }
        } else {
Daniel Kang's avatar
Daniel Kang committed
303
          // FIXME: Not 8x8 aware
304
305
306
          if (mb_col > 0 &&
              !(skip_lf && mb_lf_skip(&mode_info_context[-1].mbmi)) &&
              !((mb_col & 1) && mode_info_context->mbmi.sb_type))
307
            vp9_loop_filter_simple_mbv(y_ptr, post->y_stride,
308
                                       lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
309
          if (!skip_lf)
310
            vp9_loop_filter_simple_bv(y_ptr, post->y_stride,
311
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
312
313

          /* don't apply across umv border */
314
          if (mb_row > 0 &&
315
316
              !(skip_lf && mb_lf_skip(&mode_info_context[-mis].mbmi)) &&
              !((mb_row & 1) && mode_info_context->mbmi.sb_type))
317
            vp9_loop_filter_simple_mbh(y_ptr, post->y_stride,
318
                                       lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
319
          if (!skip_lf)
320
            vp9_loop_filter_simple_bh(y_ptr, post->y_stride,
321
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
322
        }
John Koleszar's avatar
John Koleszar committed
323
324
      }
      y_ptr += 16;
325
326
327
328
      if (!y_only) {
        u_ptr += 8;
        v_ptr += 8;
      }
John Koleszar's avatar
John Koleszar committed
329
      mode_info_context++;     /* step to next MB */
John Koleszar's avatar
John Koleszar committed
330
    }
John Koleszar's avatar
John Koleszar committed
331
    y_ptr += post->y_stride  * 16 - post->y_width;
332
333
334
335
    if (!y_only) {
      u_ptr += post->uv_stride *  8 - post->uv_width;
      v_ptr += post->uv_stride *  8 - post->uv_width;
    }
John Koleszar's avatar
John Koleszar committed
336
337
    mode_info_context++;         /* Skip border mb */
  }
John Koleszar's avatar
John Koleszar committed
338
339
}

340

341
342
void vp9_loop_filter_partial_frame(VP9_COMMON *cm, MACROBLOCKD *xd,
                                   int default_filt_lvl) {
John Koleszar's avatar
John Koleszar committed
343
344
  YV12_BUFFER_CONFIG *post = cm->frame_to_show;

345
  uint8_t *y_ptr;
John Koleszar's avatar
John Koleszar committed
346
347
348
349
350
351
352
  int mb_row;
  int mb_col;
  int mb_cols = post->y_width  >> 4;

  int linestocopy, i;

  loop_filter_info_n *lfi_n = &cm->lf_info;
353
  struct loop_filter_info lfi;
John Koleszar's avatar
John Koleszar committed
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373

  int filter_level;
  int alt_flt_enabled = xd->segmentation_enabled;
  FRAME_TYPE frame_type = cm->frame_type;

  const MODE_INFO *mode_info_context;

  int lvl_seg[MAX_MB_SEGMENTS];

  mode_info_context = cm->mi + (post->y_height >> 5) * (mb_cols + 1);

  /* 3 is a magic number. 4 is probably magic too */
  linestocopy = (post->y_height >> (4 + 3));

  if (linestocopy < 1)
    linestocopy = 1;

  linestocopy <<= 4;

  /* Note the baseline filter values for each segment */
374
  /* See vp9_loop_filter_frame_init. Rather than call that for each change
John Koleszar's avatar
John Koleszar committed
375
376
377
378
379
   * to default_filt_lvl, copy the relevant calculation here.
   */
  if (alt_flt_enabled) {
    for (i = 0; i < MAX_MB_SEGMENTS; i++) {
      if (xd->mb_segment_abs_delta == SEGMENT_ABSDATA) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
380
        // Abs value
381
        lvl_seg[i] = vp9_get_segdata(xd, i, SEG_LVL_ALT_LF);
Dmitry Kovalev's avatar
Dmitry Kovalev committed
382
383
384
385
      } else {
        // Delta Value
        lvl_seg[i] = default_filt_lvl + vp9_get_segdata(xd, i, SEG_LVL_ALT_LF);
        lvl_seg[i] = clamp(lvl_seg[i], 0, 63);
John Koleszar's avatar
John Koleszar committed
386
      }
John Koleszar's avatar
John Koleszar committed
387
    }
John Koleszar's avatar
John Koleszar committed
388
389
390
391
392
  }

  /* Set up the buffer pointers */
  y_ptr = post->y_buffer + (post->y_height >> 5) * 16 * post->y_stride;

393
  /* vp9_filter each macro block */
John Koleszar's avatar
John Koleszar committed
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
  for (mb_row = 0; mb_row < (linestocopy >> 4); mb_row++) {
    for (mb_col = 0; mb_col < mb_cols; mb_col++) {
      int skip_lf = (mode_info_context->mbmi.mode != B_PRED &&
                     mode_info_context->mbmi.mode != I8X8_PRED &&
                     mode_info_context->mbmi.mode != SPLITMV &&
                     mode_info_context->mbmi.mb_skip_coeff);

      if (alt_flt_enabled)
        filter_level = lvl_seg[mode_info_context->mbmi.segment_id];
      else
        filter_level = default_filt_lvl;

      if (filter_level) {
        if (cm->filter_type == NORMAL_LOOPFILTER) {
          const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
          lfi.mblim = lfi_n->mblim[filter_level];
          lfi.blim = lfi_n->blim[filter_level];
          lfi.lim = lfi_n->lim[filter_level];
          lfi.hev_thr = lfi_n->hev_thr[hev_index];

          if (mb_col > 0)
415
            vp9_loop_filter_mbv(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
416
417

          if (!skip_lf)
418
            vp9_loop_filter_bv(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
419

420
          vp9_loop_filter_mbh(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
421
422

          if (!skip_lf)
423
            vp9_loop_filter_bh(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
424
425
        } else {
          if (mb_col > 0)
426
            vp9_loop_filter_simple_mbv (y_ptr, post->y_stride,
427
                                        lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
428
429

          if (!skip_lf)
430
            vp9_loop_filter_simple_bv(y_ptr, post->y_stride,
431
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
432

433
          vp9_loop_filter_simple_mbh(y_ptr, post->y_stride,
434
                                     lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
435
436

          if (!skip_lf)
437
            vp9_loop_filter_simple_bh(y_ptr, post->y_stride,
438
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
439
        }
John Koleszar's avatar
John Koleszar committed
440
      }
John Koleszar's avatar
John Koleszar committed
441

John Koleszar's avatar
John Koleszar committed
442
443
      y_ptr += 16;
      mode_info_context += 1;      /* step to next MB */
John Koleszar's avatar
John Koleszar committed
444
    }
John Koleszar's avatar
John Koleszar committed
445
446
447
448

    y_ptr += post->y_stride  * 16 - post->y_width;
    mode_info_context += 1;          /* Skip border mb */
  }
John Koleszar's avatar
John Koleszar committed
449
}