vp9_loopfilter.c 15.8 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);
John Koleszar's avatar
John Koleszar committed
132 133 134
        lvl_seg = (lvl_seg > 0) ? ((lvl_seg > 63) ? 63 : lvl_seg) : 0;
      }
    }
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
152 153 154 155 156
    /* Apply delta for Intra modes */
    mode = 0; /* B_PRED */
    /* Only the split mode BPRED has a further special case */
    lvl_mode = lvl_ref +  xd->mode_lf_deltas[mode];
    lvl_mode = (lvl_mode > 0) ? (lvl_mode > 63 ? 63 : lvl_mode) : 0; /* clamp */
Attila Nagy's avatar
Attila Nagy committed
157

John Koleszar's avatar
John Koleszar committed
158
    lfi->lvl[seg][ref][mode] = lvl_mode;
Attila Nagy's avatar
Attila Nagy committed
159

John Koleszar's avatar
John Koleszar committed
160 161 162
    mode = 1; /* all the rest of Intra modes */
    lvl_mode = (lvl_ref > 0) ? (lvl_ref > 63 ? 63 : lvl_ref)  : 0; /* clamp */
    lfi->lvl[seg][ref][mode] = lvl_mode;
John Koleszar's avatar
John Koleszar committed
163

John Koleszar's avatar
John Koleszar committed
164 165 166
    /* LAST, GOLDEN, ALT */
    for (ref = 1; ref < MAX_REF_FRAMES; ref++) {
      int lvl_ref = lvl_seg;
John Koleszar's avatar
John Koleszar committed
167

John Koleszar's avatar
John Koleszar committed
168 169
      /* Apply delta for reference frame */
      lvl_ref += xd->ref_lf_deltas[ref];
John Koleszar's avatar
John Koleszar committed
170

John Koleszar's avatar
John Koleszar committed
171 172 173 174 175 176 177
      /* Apply delta for Inter modes */
      for (mode = 1; mode < 4; mode++) {
        lvl_mode = lvl_ref + xd->mode_lf_deltas[mode];
        lvl_mode = (lvl_mode > 0) ? (lvl_mode > 63 ? 63 : lvl_mode) : 0; /* clamp */

        lfi->lvl[seg][ref][mode] = lvl_mode;
      }
John Koleszar's avatar
John Koleszar committed
178
    }
John Koleszar's avatar
John Koleszar committed
179
  }
John Koleszar's avatar
John Koleszar committed
180 181
}

Yaowu Xu's avatar
Yaowu Xu committed
182 183 184 185
// 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.
186 187 188 189 190
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
191
         (tx_size >= TX_16X16 || skip_coef);
192
}
Yaowu Xu's avatar
Yaowu Xu committed
193 194 195 196 197

// 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
198 199
static int sb_mb_lf_skip(const MODE_INFO *const mip0,
                         const MODE_INFO *const mip1) {
Yaowu Xu's avatar
Yaowu Xu committed
200 201 202 203 204 205 206
  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;
207
}
208

209 210 211 212
void vp9_loop_filter_frame(VP9_COMMON *cm,
                           MACROBLOCKD *xd,
                           int frame_filter_level,
                           int y_only) {
John Koleszar's avatar
John Koleszar committed
213 214
  YV12_BUFFER_CONFIG *post = cm->frame_to_show;
  loop_filter_info_n *lfi_n = &cm->lf_info;
215
  struct loop_filter_info lfi;
216 217
  const FRAME_TYPE frame_type = cm->frame_type;
  int mb_row, mb_col;
218
  uint8_t *y_ptr, *u_ptr, *v_ptr;
John Koleszar's avatar
John Koleszar committed
219 220 221

  /* Point at base of Mb MODE_INFO list */
  const MODE_INFO *mode_info_context = cm->mi;
222
  const int mis = cm->mode_info_stride;
John Koleszar's avatar
John Koleszar committed
223 224

  /* Initialize the loop filter for this frame. */
225
  vp9_loop_filter_frame_init(cm, xd, frame_filter_level);
John Koleszar's avatar
John Koleszar committed
226 227
  /* Set up the buffer pointers */
  y_ptr = post->y_buffer;
228 229 230 231 232 233 234
  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
235

236
  /* vp9_filter each macro block */
John Koleszar's avatar
John Koleszar committed
237 238
  for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
    for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
239 240
      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
241 242
      const int seg = mode_info_context->mbmi.segment_id;
      const int ref_frame = mode_info_context->mbmi.ref_frame;
243
      const int filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
John Koleszar's avatar
John Koleszar committed
244
      if (filter_level) {
245 246
        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
247 248 249 250 251 252 253
        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
254 255 256 257
          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))
258 259
              ) {
            if (tx_size >= TX_16X16)
260
              vp9_lpf_mbv_w(y_ptr, u_ptr, v_ptr, post->y_stride,
261
                            post->uv_stride, &lfi);
262
            else
263
              vp9_loop_filter_mbv(y_ptr, u_ptr, v_ptr, post->y_stride,
264
                                  post->uv_stride, &lfi);
265
          }
266
          if (!skip_lf) {
267 268
            if (tx_size >= TX_8X8) {
              if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
269
                vp9_loop_filter_bv8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
270 271
                                      post->uv_stride, &lfi);
              else
272
                vp9_loop_filter_bv8x8(y_ptr, NULL, NULL, post->y_stride,
273 274
                                      post->uv_stride, &lfi);
            } else {
275
              vp9_loop_filter_bv(y_ptr, u_ptr, v_ptr, post->y_stride,
276
                                 post->uv_stride, &lfi);
277
            }
John Koleszar's avatar
John Koleszar committed
278 279
          }
          /* don't apply across umv border */
Yaowu Xu's avatar
Yaowu Xu committed
280 281 282 283
          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))
284 285
              ) {
            if (tx_size >= TX_16X16)
286
              vp9_lpf_mbh_w(y_ptr, u_ptr, v_ptr, post->y_stride,
287
                            post->uv_stride, &lfi);
288
            else
289
              vp9_loop_filter_mbh(y_ptr, u_ptr, v_ptr, post->y_stride,
290
                                  post->uv_stride, &lfi);
291
          }
292
          if (!skip_lf) {
293 294
            if (tx_size >= TX_8X8) {
              if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
295
                vp9_loop_filter_bh8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
296 297
                                      post->uv_stride, &lfi);
              else
298
                vp9_loop_filter_bh8x8(y_ptr, NULL, NULL, post->y_stride,
299 300
                                      post->uv_stride, &lfi);
            } else {
301
              vp9_loop_filter_bh(y_ptr, u_ptr, v_ptr, post->y_stride,
302
                                 post->uv_stride, &lfi);
303
            }
John Koleszar's avatar
John Koleszar committed
304 305
          }
        } else {
Daniel Kang's avatar
Daniel Kang committed
306
          // FIXME: Not 8x8 aware
307 308 309
          if (mb_col > 0 &&
              !(skip_lf && mb_lf_skip(&mode_info_context[-1].mbmi)) &&
              !((mb_col & 1) && mode_info_context->mbmi.sb_type))
310
            vp9_loop_filter_simple_mbv(y_ptr, post->y_stride,
311
                                       lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
312
          if (!skip_lf)
313
            vp9_loop_filter_simple_bv(y_ptr, post->y_stride,
314
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
315 316

          /* don't apply across umv border */
317
          if (mb_row > 0 &&
318 319
              !(skip_lf && mb_lf_skip(&mode_info_context[-mis].mbmi)) &&
              !((mb_row & 1) && mode_info_context->mbmi.sb_type))
320
            vp9_loop_filter_simple_mbh(y_ptr, post->y_stride,
321
                                       lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
322
          if (!skip_lf)
323
            vp9_loop_filter_simple_bh(y_ptr, post->y_stride,
324
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
325
        }
John Koleszar's avatar
John Koleszar committed
326 327
      }
      y_ptr += 16;
328 329 330 331
      if (!y_only) {
        u_ptr += 8;
        v_ptr += 8;
      }
John Koleszar's avatar
John Koleszar committed
332
      mode_info_context++;     /* step to next MB */
John Koleszar's avatar
John Koleszar committed
333
    }
John Koleszar's avatar
John Koleszar committed
334
    y_ptr += post->y_stride  * 16 - post->y_width;
335 336 337 338
    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
339 340
    mode_info_context++;         /* Skip border mb */
  }
John Koleszar's avatar
John Koleszar committed
341 342
}

343

344 345
void vp9_loop_filter_partial_frame(VP9_COMMON *cm, MACROBLOCKD *xd,
                                   int default_filt_lvl) {
John Koleszar's avatar
John Koleszar committed
346 347
  YV12_BUFFER_CONFIG *post = cm->frame_to_show;

348
  uint8_t *y_ptr;
John Koleszar's avatar
John Koleszar committed
349 350 351 352 353 354 355
  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;
356
  struct loop_filter_info lfi;
John Koleszar's avatar
John Koleszar committed
357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376

  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 */
377
  /* See vp9_loop_filter_frame_init. Rather than call that for each change
John Koleszar's avatar
John Koleszar committed
378 379 380 381 382 383
   * to default_filt_lvl, copy the relevant calculation here.
   */
  if (alt_flt_enabled) {
    for (i = 0; i < MAX_MB_SEGMENTS; i++) {
      /* Abs value */
      if (xd->mb_segment_abs_delta == SEGMENT_ABSDATA) {
384
        lvl_seg[i] = vp9_get_segdata(xd, i, SEG_LVL_ALT_LF);
John Koleszar's avatar
John Koleszar committed
385 386 387 388
      }
      /* Delta Value */
      else {
        lvl_seg[i] = default_filt_lvl +
389
                     vp9_get_segdata(xd, i, SEG_LVL_ALT_LF);
John Koleszar's avatar
John Koleszar committed
390 391 392
        lvl_seg[i] = (lvl_seg[i] > 0) ?
                     ((lvl_seg[i] > 63) ? 63 : lvl_seg[i]) : 0;
      }
John Koleszar's avatar
John Koleszar committed
393
    }
John Koleszar's avatar
John Koleszar committed
394 395 396 397 398
  }

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

399
  /* vp9_filter each macro block */
John Koleszar's avatar
John Koleszar committed
400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420
  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)
421
            vp9_loop_filter_mbv(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
422 423

          if (!skip_lf)
424
            vp9_loop_filter_bv(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
425

426
          vp9_loop_filter_mbh(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
427 428

          if (!skip_lf)
429
            vp9_loop_filter_bh(y_ptr, 0, 0, post->y_stride, 0, &lfi);
John Koleszar's avatar
John Koleszar committed
430 431
        } else {
          if (mb_col > 0)
432
            vp9_loop_filter_simple_mbv (y_ptr, post->y_stride,
433
                                        lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
434 435

          if (!skip_lf)
436
            vp9_loop_filter_simple_bv(y_ptr, post->y_stride,
437
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
438

439
          vp9_loop_filter_simple_mbh(y_ptr, post->y_stride,
440
                                     lfi_n->mblim[filter_level]);
John Koleszar's avatar
John Koleszar committed
441 442

          if (!skip_lf)
443
            vp9_loop_filter_simple_bh(y_ptr, post->y_stride,
444
                                      lfi_n->blim[filter_level]);
John Koleszar's avatar
John Koleszar committed
445
        }
John Koleszar's avatar
John Koleszar committed
446
      }
John Koleszar's avatar
John Koleszar committed
447

John Koleszar's avatar
John Koleszar committed
448 449
      y_ptr += 16;
      mode_info_context += 1;      /* step to next MB */
John Koleszar's avatar
John Koleszar committed
450
    }
John Koleszar's avatar
John Koleszar committed
451 452 453 454

    y_ptr += post->y_stride  * 16 - post->y_width;
    mode_info_context += 1;          /* Skip border mb */
  }
John Koleszar's avatar
John Koleszar committed
455
}