FFmpeg
vc1_loopfilter.c
Go to the documentation of this file.
1 /*
2  * VC-1 and WMV3 decoder
3  * Copyright (c) 2011 Mashiat Sarker Shakkhar
4  * Copyright (c) 2006-2007 Konstantin Shishkov
5  * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 /**
25  * @file
26  * VC-1 and WMV3 loopfilter
27  */
28 
29 #include "avcodec.h"
30 #include "mpegvideo.h"
31 #include "vc1.h"
32 #include "vc1dsp.h"
33 
34 static av_always_inline void vc1_h_overlap_filter(VC1Context *v, int16_t (*left_block)[64],
35  int16_t (*right_block)[64], int left_fieldtx,
36  int right_fieldtx, int block_num)
37 {
38  switch (block_num) {
39  case 0:
40  v->vc1dsp.vc1_h_s_overlap(left_block[2],
41  right_block[0],
42  left_fieldtx ^ right_fieldtx ? 16 - 8 * left_fieldtx : 8,
43  left_fieldtx ^ right_fieldtx ? 16 - 8 * right_fieldtx : 8,
44  left_fieldtx || right_fieldtx ? 0 : 1);
45  break;
46 
47  case 1:
48  v->vc1dsp.vc1_h_s_overlap(right_block[0],
49  right_block[2],
50  8,
51  8,
52  right_fieldtx ? 0 : 1);
53  break;
54 
55  case 2:
56  v->vc1dsp.vc1_h_s_overlap(!left_fieldtx && right_fieldtx ? left_block[2] + 8 : left_block[3],
57  left_fieldtx && !right_fieldtx ? right_block[0] + 8 : right_block[1],
58  left_fieldtx ^ right_fieldtx ? 16 - 8 * left_fieldtx : 8,
59  left_fieldtx ^ right_fieldtx ? 16 - 8 * right_fieldtx : 8,
60  left_fieldtx || right_fieldtx ? 2 : 1);
61  break;
62 
63  case 3:
64  v->vc1dsp.vc1_h_s_overlap(right_block[1],
65  right_block[3],
66  8,
67  8,
68  right_fieldtx ? 2 : 1);
69  break;
70 
71  case 4:
72  case 5:
73  v->vc1dsp.vc1_h_s_overlap(left_block[block_num], right_block[block_num], 8, 8, 1);
74  break;
75  }
76 }
77 
78 static av_always_inline void vc1_v_overlap_filter(VC1Context *v, int16_t (*top_block)[64],
79  int16_t (*bottom_block)[64], int block_num)
80 {
81  switch (block_num) {
82  case 0:
83  v->vc1dsp.vc1_v_s_overlap(top_block[1], bottom_block[0]);
84  break;
85 
86  case 1:
87  v->vc1dsp.vc1_v_s_overlap(top_block[3], bottom_block[2]);
88  break;
89 
90  case 2:
91  v->vc1dsp.vc1_v_s_overlap(bottom_block[0], bottom_block[1]);
92  break;
93 
94  case 3:
95  v->vc1dsp.vc1_v_s_overlap(bottom_block[2], bottom_block[3]);
96  break;
97 
98  case 4:
99  case 5:
100  v->vc1dsp.vc1_v_s_overlap(top_block[block_num], bottom_block[block_num]);
101  break;
102  }
103 }
104 
105 void ff_vc1_i_overlap_filter(VC1Context *v)
106 {
107  MpegEncContext *s = &v->s;
108  int16_t (*topleft_blk)[64], (*top_blk)[64], (*left_blk)[64], (*cur_blk)[64];
109  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
110  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
111  int i;
112 
113  topleft_blk = v->block[v->topleft_blk_idx];
114  top_blk = v->block[v->top_blk_idx];
115  left_blk = v->block[v->left_blk_idx];
116  cur_blk = v->block[v->cur_blk_idx];
117 
118  /* Within a MB, the horizontal overlap always runs before the vertical.
119  * To accomplish that, we run the H on the left and internal vertical
120  * borders of the currently decoded MB. Then, we wait for the next overlap
121  * iteration to do H overlap on the right edge of this MB, before moving
122  * over and running the V overlap on the top and internal horizontal
123  * borders. Therefore, the H overlap trails by one MB col and the
124  * V overlap trails by one MB row. This is reflected in the time at which
125  * we run the put_pixels loop, i.e. delayed by one row and one column. */
126  for (i = 0; i < block_count; i++) {
127  if (s->mb_x == 0 && (i & 5) != 1)
128  continue;
129 
130  if (v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
131  (v->condover == CONDOVER_ALL ||
132  (v->over_flags_plane[mb_pos] &&
133  ((i & 5) == 1 || v->over_flags_plane[mb_pos - 1])))))
134  vc1_h_overlap_filter(v,
135  s->mb_x ? left_blk : cur_blk, cur_blk,
136  v->fcm == ILACE_FRAME && s->mb_x && v->fieldtx_plane[mb_pos - 1],
137  v->fcm == ILACE_FRAME && v->fieldtx_plane[mb_pos],
138  i);
139  }
140 
141  if (v->fcm != ILACE_FRAME)
142  for (i = 0; i < block_count; i++) {
143  if (s->first_slice_line && !(i & 2))
144  continue;
145 
146  if (s->mb_x &&
147  (v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
148  (v->condover == CONDOVER_ALL ||
149  (v->over_flags_plane[mb_pos - 1] &&
150  ((i & 2) || v->over_flags_plane[mb_pos - 1 - s->mb_stride]))))))
151  vc1_v_overlap_filter(v, s->first_slice_line ? left_blk : topleft_blk, left_blk, i);
152  if (s->mb_x == s->mb_width - 1 &&
153  (v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
154  (v->condover == CONDOVER_ALL ||
155  (v->over_flags_plane[mb_pos] &&
156  ((i & 2) || v->over_flags_plane[mb_pos - s->mb_stride]))))))
157  vc1_v_overlap_filter(v, s->first_slice_line ? cur_blk : top_blk, cur_blk, i);
158  }
159 }
160 
161 void ff_vc1_p_overlap_filter(VC1Context *v)
162 {
163  MpegEncContext *s = &v->s;
164  int16_t (*topleft_blk)[64], (*top_blk)[64], (*left_blk)[64], (*cur_blk)[64];
165  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
166  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
167  int i;
168 
169  topleft_blk = v->block[v->topleft_blk_idx];
170  top_blk = v->block[v->top_blk_idx];
171  left_blk = v->block[v->left_blk_idx];
172  cur_blk = v->block[v->cur_blk_idx];
173 
174  for (i = 0; i < block_count; i++) {
175  if (s->mb_x == 0 && (i & 5) != 1)
176  continue;
177 
178  if (v->mb_type[0][s->block_index[i]] && v->mb_type[0][s->block_index[i] - 1])
179  vc1_h_overlap_filter(v,
180  s->mb_x ? left_blk : cur_blk, cur_blk,
181  v->fcm == ILACE_FRAME && s->mb_x && v->fieldtx_plane[mb_pos - 1],
182  v->fcm == ILACE_FRAME && v->fieldtx_plane[mb_pos],
183  i);
184  }
185 
186  if (v->fcm != ILACE_FRAME)
187  for (i = 0; i < block_count; i++) {
188  if (s->first_slice_line && !(i & 2))
189  continue;
190 
191  if (s->mb_x && v->mb_type[0][s->block_index[i] - 2 + (i > 3)] &&
192  v->mb_type[0][s->block_index[i] - s->block_wrap[i] - 2 + (i > 3)])
193  vc1_v_overlap_filter(v, s->first_slice_line ? left_blk : topleft_blk, left_blk, i);
194  if (s->mb_x == s->mb_width - 1)
195  if (v->mb_type[0][s->block_index[i]] &&
196  v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
197  vc1_v_overlap_filter(v, s->first_slice_line ? cur_blk : top_blk, cur_blk, i);
198  }
199 }
200 
201 #define LEFT_EDGE (1 << 0)
202 #define RIGHT_EDGE (1 << 1)
203 #define TOP_EDGE (1 << 2)
204 #define BOTTOM_EDGE (1 << 3)
205 
206 static av_always_inline void vc1_i_h_loop_filter(VC1Context *v, uint8_t *dest,
207  uint32_t flags, int block_num)
208 {
209  MpegEncContext *s = &v->s;
210  int pq = v->pq;
211  uint8_t *dst;
212 
213  if (block_num & 2)
214  return;
215 
216  if (!(flags & LEFT_EDGE) || (block_num & 5) == 1) {
217  if (block_num > 3)
218  dst = dest;
219  else
220  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
221 
222  if (v->fcm == ILACE_FRAME)
223  if (block_num > 3) {
224  v->vc1dsp.vc1_h_loop_filter4(dst, 2 * s->uvlinesize, pq);
225  v->vc1dsp.vc1_h_loop_filter4(dst + s->uvlinesize, 2 * s->uvlinesize, pq);
226  } else {
227  v->vc1dsp.vc1_h_loop_filter8(dst, 2 * s->linesize, pq);
228  v->vc1dsp.vc1_h_loop_filter8(dst + s->linesize, 2 * s->linesize, pq);
229  }
230  else
231  if (block_num > 3)
232  v->vc1dsp.vc1_h_loop_filter8(dst, s->uvlinesize, pq);
233  else
234  v->vc1dsp.vc1_h_loop_filter16(dst, s->linesize, pq);
235  }
236 }
237 
238 static av_always_inline void vc1_i_v_loop_filter(VC1Context *v, uint8_t *dest,
239  uint32_t flags, uint8_t fieldtx,
240  int block_num)
241 {
242  MpegEncContext *s = &v->s;
243  int pq = v->pq;
244  uint8_t *dst;
245 
246  if ((block_num & 5) == 1)
247  return;
248 
249  if (!(flags & TOP_EDGE) || block_num & 2) {
250  if (block_num > 3)
251  dst = dest;
252  else
253  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
254 
255  if (v->fcm == ILACE_FRAME) {
256  if (block_num > 3) {
257  v->vc1dsp.vc1_v_loop_filter8(dst, 2 * s->uvlinesize, pq);
258  v->vc1dsp.vc1_v_loop_filter8(dst + s->uvlinesize, 2 * s->uvlinesize, pq);
259  } else if (block_num < 2 || !fieldtx) {
260  v->vc1dsp.vc1_v_loop_filter16(dst, 2 * s->linesize, pq);
261  v->vc1dsp.vc1_v_loop_filter16(dst + s->linesize, 2 * s->linesize, pq);
262  }
263  } else
264  if (block_num > 3)
265  v->vc1dsp.vc1_v_loop_filter8(dst, s->uvlinesize, pq);
266  else
267  v->vc1dsp.vc1_v_loop_filter16(dst, s->linesize, pq);
268  }
269 }
270 
271 void ff_vc1_i_loop_filter(VC1Context *v)
272 {
273  MpegEncContext *s = &v->s;
274  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
275  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
276  uint8_t *dest, fieldtx;
277  uint32_t flags = 0;
278  int i;
279 
280  /* Within a MB, the vertical loop filter always runs before the horizontal.
281  * To accomplish that, we run the V loop filter on top and internal
282  * horizontal borders of the last overlap filtered MB. Then, we wait for
283  * the loop filter iteration on the next row to do V loop filter on the
284  * bottom edge of this MB, before moving over and running the H loop
285  * filter on the left and internal vertical borders. Therefore, the loop
286  * filter trails by one row and one column relative to the overlap filter
287  * and two rows and two columns relative to the decoding loop. */
288  if (!s->first_slice_line) {
289  dest = s->dest[0] - 16 * s->linesize - 16;
290  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
291  if (s->mb_x) {
292  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride - 1];
293  for (i = 0; i < block_count; i++)
294  vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest, flags, fieldtx, i);
295  }
296  if (s->mb_x == v->end_mb_x - 1) {
297  dest += 16;
298  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride];
299  for (i = 0; i < block_count; i++)
300  vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest, flags, fieldtx, i);
301  }
302  }
303  if (s->mb_y == s->end_mb_y - 1) {
304  dest = s->dest[0] - 16;
305  flags = s->first_slice_line ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
306  if (s->mb_x) {
307  fieldtx = v->fieldtx_plane[mb_pos - 1];
308  for (i = 0; i < block_count; i++)
309  vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 : dest, flags, fieldtx, i);
310  }
311  if (s->mb_x == v->end_mb_x - 1) {
312  dest += 16;
313  fieldtx = v->fieldtx_plane[mb_pos];
314  for (i = 0; i < block_count; i++)
315  vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] : dest, flags, fieldtx, i);
316  }
317  }
318 
319  if (s->mb_y >= s->start_mb_y + 2) {
320  dest = s->dest[0] - 32 * s->linesize - 16;
321  if (s->mb_x) {
322  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
323  for (i = 0; i < block_count; i++)
324  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 8 : dest, flags, i);
325  }
326  if (s->mb_x == v->end_mb_x - 1) {
327  dest += 16;
328  flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
329  for (i = 0; i < block_count; i++)
330  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize : dest, flags, i);
331  }
332  }
333  if (s->mb_y == s->end_mb_y - 1) {
334  if (s->mb_y >= s->start_mb_y + 1) {
335  dest = s->dest[0] - 16 * s->linesize - 16;
336  if (s->mb_x) {
337  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
338  for (i = 0; i < block_count; i++)
339  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest, flags, i);
340  }
341  if (s->mb_x == v->end_mb_x - 1) {
342  flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
343  dest += 16;
344  for (i = 0; i < block_count; i++)
345  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest, flags, i);
346  }
347  }
348  dest = s->dest[0] - 16;
349  if (s->mb_x) {
350  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
351  for (i = 0; i < block_count; i++)
352  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 : dest, flags, i);
353  }
354  if (s->mb_x == v->end_mb_x - 1) {
355  dest += 16;
356  flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
357  for (i = 0; i < block_count; i++)
358  vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] : dest, flags, i);
359  }
360  }
361 }
362 
363 static av_always_inline void vc1_p_h_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp,
364  uint8_t *is_intra, int16_t (*mv)[2], uint8_t *mv_f,
365  int *ttblk, uint32_t flags, int block_num)
366 {
367  MpegEncContext *s = &v->s;
368  int pq = v->pq;
369  uint32_t left_cbp = cbp[0] >> (block_num * 4), right_cbp;
370  uint8_t left_is_intra, right_is_intra;
371  int tt;
372  int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize;
373  uint8_t *dst;
374 
375  if (block_num > 3)
376  dst = dest;
377  else
378  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
379 
380  if (!(flags & RIGHT_EDGE) || !(block_num & 5)) {
381  left_is_intra = is_intra[0] & (1 << block_num);
382 
383  if (block_num > 3) {
384  right_is_intra = is_intra[1] & (1 << block_num);
385  right_cbp = cbp[1] >> (block_num * 4);
386  } else if (block_num & 1) {
387  right_is_intra = is_intra[1] & (1 << block_num - 1);
388  right_cbp = cbp[1] >> ((block_num - 1) * 4);
389  } else {
390  right_is_intra = is_intra[0] & (1 << block_num + 1);
391  right_cbp = cbp[0] >> ((block_num + 1) * 4);
392  }
393 
394  if (left_is_intra || right_is_intra ||
395  mv[0][0] != mv[1][0] || mv[0][1] != mv[1][1] ||
396  (v->fcm == ILACE_FIELD && mv_f[0] != mv_f[1]))
397  v->vc1dsp.vc1_h_loop_filter8(dst + 8, linesize, pq);
398  else {
399  idx = (left_cbp | (right_cbp >> 1)) & 5;
400  if (idx & 1)
401  v->vc1dsp.vc1_h_loop_filter4(dst + 4 * linesize + 8, linesize, pq);
402  if (idx & 4)
403  v->vc1dsp.vc1_h_loop_filter4(dst + 8, linesize, pq);
404  }
405  }
406 
407  tt = ttblk[0] >> (block_num * 4) & 0xf;
408  if (tt == TT_4X4 || tt == TT_4X8) {
409  if (left_cbp & 3)
410  v->vc1dsp.vc1_h_loop_filter4(dst + 4 * linesize + 4, linesize, pq);
411  if (left_cbp & 12)
412  v->vc1dsp.vc1_h_loop_filter4(dst + 4, linesize, pq);
413  }
414 }
415 
416 static av_always_inline void vc1_p_v_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp,
417  uint8_t *is_intra, int16_t (*mv)[2], uint8_t *mv_f,
418  int *ttblk, uint32_t flags, int block_num)
419 {
420  MpegEncContext *s = &v->s;
421  int pq = v->pq;
422  uint32_t top_cbp = cbp[0] >> (block_num * 4), bottom_cbp;
423  uint8_t top_is_intra, bottom_is_intra;
424  int tt;
425  int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize;
426  uint8_t *dst;
427 
428  if (block_num > 3)
429  dst = dest;
430  else
431  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
432 
433  if(!(flags & BOTTOM_EDGE) || block_num < 2) {
434  top_is_intra = is_intra[0] & (1 << block_num);
435 
436  if (block_num > 3) {
437  bottom_is_intra = is_intra[s->mb_stride] & (1 << block_num);
438  bottom_cbp = cbp[s->mb_stride] >> (block_num * 4);
439  } else if (block_num < 2) {
440  bottom_is_intra = is_intra[0] & (1 << block_num + 2);
441  bottom_cbp = cbp[0] >> ((block_num + 2) * 4);
442  } else {
443  bottom_is_intra = is_intra[s->mb_stride] & (1 << block_num - 2);
444  bottom_cbp = cbp[s->mb_stride] >> ((block_num - 2) * 4);
445  }
446 
447  if (top_is_intra || bottom_is_intra ||
448  mv[0][0] != mv[block_num > 3 ? s->mb_stride : s->b8_stride][0] ||
449  mv[0][1] != mv[block_num > 3 ? s->mb_stride : s->b8_stride][1] ||
450  (v->fcm == ILACE_FIELD && mv_f[0] != mv_f[block_num > 3 ? s->mb_stride : s->b8_stride]))
451  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, linesize, pq);
452  else {
453  idx = (top_cbp | (bottom_cbp >> 2)) & 3;
454  if (idx & 1)
455  v->vc1dsp.vc1_v_loop_filter4(dst + 8 * linesize + 4, linesize, pq);
456  if (idx & 2)
457  v->vc1dsp.vc1_v_loop_filter4(dst + 8 * linesize, linesize, pq);
458  }
459  }
460 
461  tt = ttblk[0] >> (block_num * 4) & 0xf;
462  if (tt == TT_4X4 || tt == TT_8X4) {
463  if (top_cbp & 5)
464  v->vc1dsp.vc1_v_loop_filter4(dst + 4 * linesize + 4, linesize, pq);
465  if (top_cbp & 10)
466  v->vc1dsp.vc1_v_loop_filter4(dst + 4 * linesize, linesize, pq);
467  }
468 }
469 
470 void ff_vc1_p_loop_filter(VC1Context *v)
471 {
472  MpegEncContext *s = &v->s;
473  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
474  uint8_t *dest;
475  uint32_t *cbp;
476  uint8_t *is_intra;
477  int16_t (*uvmv)[2];
478  int *ttblk;
479  uint32_t flags;
480  int i;
481 
482  /* Within a MB, the vertical loop filter always runs before the horizontal.
483  * To accomplish that, we run the V loop filter on all applicable
484  * horizontal borders of the MB above the last overlap filtered MB. Then,
485  * we wait for the next loop filter iteration to do H loop filter on all
486  * applicable vertical borders of this MB. Therefore, the loop filter
487  * trails by one row and one column relative to the overlap filter and two
488  * rows and two columns relative to the decoding loop. */
489  if (s->mb_y >= s->start_mb_y + 2) {
490  if (s->mb_x) {
491  dest = s->dest[0] - 32 * s->linesize - 16;
492  cbp = &v->cbp[s->mb_x - 2 * s->mb_stride - 1];
493  is_intra = &v->is_intra[s->mb_x - 2 * s->mb_stride - 1];
494  uvmv = &v->luma_mv[s->mb_x - 2 * s->mb_stride - 1];
495  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride - 1];
496  flags = s->mb_y == s->start_mb_y + 2 ? TOP_EDGE : 0;
497  for (i = 0; i < block_count; i++)
498  vc1_p_v_loop_filter(v,
499  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 8 : dest,
500  cbp,
501  is_intra,
502  i > 3 ? uvmv :
503  &s->current_picture.motion_val[0][s->block_index[i] - 4 * s->b8_stride - 2 + v->blocks_off],
504  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 * s->mb_stride - 1 + v->mb_off] :
505  &v->mv_f[0][s->block_index[i] - 4 * s->b8_stride - 2 + v->blocks_off],
506  ttblk,
507  flags,
508  i);
509  }
510  if (s->mb_x == s->mb_width - 1) {
511  dest = s->dest[0] - 32 * s->linesize;
512  cbp = &v->cbp[s->mb_x - 2 * s->mb_stride];
513  is_intra = &v->is_intra[s->mb_x - 2 * s->mb_stride];
514  uvmv = &v->luma_mv[s->mb_x - 2 * s->mb_stride];
515  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride];
516  flags = s->mb_y == s->start_mb_y + 2 ? TOP_EDGE : 0;
517  for (i = 0; i < block_count; i++)
518  vc1_p_v_loop_filter(v,
519  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize : dest,
520  cbp,
521  is_intra,
522  i > 3 ? uvmv :
523  &s->current_picture.motion_val[0][s->block_index[i] - 4 * s->b8_stride + v->blocks_off],
524  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 * s->mb_stride + v->mb_off] :
525  &v->mv_f[0][s->block_index[i] - 4 * s->b8_stride + v->blocks_off],
526  ttblk,
527  flags,
528  i);
529  }
530  }
531  if (s->mb_y == s->end_mb_y - 1) {
532  if (s->mb_x) {
533  if (s->mb_y >= s->start_mb_y + 1) {
534  dest = s->dest[0] - 16 * s->linesize - 16;
535  cbp = &v->cbp[s->mb_x - s->mb_stride - 1];
536  is_intra = &v->is_intra[s->mb_x - s->mb_stride - 1];
537  uvmv = &v->luma_mv[s->mb_x - s->mb_stride - 1];
538  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 1];
539  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
540  for (i = 0; i < block_count; i++)
541  vc1_p_v_loop_filter(v,
542  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
543  cbp,
544  is_intra,
545  i > 3 ? uvmv :
546  &s->current_picture.motion_val[0][s->block_index[i] - 2 * s->b8_stride - 2 + v->blocks_off],
547  i > 3 ? &v->mv_f[0][s->block_index[i] - s->mb_stride - 1 + v->mb_off] :
548  &v->mv_f[0][s->block_index[i] - 2 * s->b8_stride - 2 + v->blocks_off],
549  ttblk,
550  flags,
551  i);
552  }
553  dest = s->dest[0] - 16;
554  cbp = &v->cbp[s->mb_x - 1];
555  is_intra = &v->is_intra[s->mb_x - 1];
556  uvmv = &v->luma_mv[s->mb_x - 1];
557  ttblk = &v->ttblk[s->mb_x - 1];
558  flags = s->mb_y == s->start_mb_y ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
559  for (i = 0; i < block_count; i++)
560  vc1_p_v_loop_filter(v,
561  i > 3 ? s->dest[i - 3] - 8 : dest,
562  cbp,
563  is_intra,
564  i > 3 ? uvmv :
565  &s->current_picture.motion_val[0][s->block_index[i] - 2 + v->blocks_off],
566  i > 3 ? &v->mv_f[0][s->block_index[i] - 1 + v->mb_off] :
567  &v->mv_f[0][s->block_index[i] - 2 + v->blocks_off],
568  ttblk,
569  flags,
570  i);
571  }
572  if (s->mb_x == s->mb_width - 1) {
573  if (s->mb_y >= s->start_mb_y + 1) {
574  dest = s->dest[0] - 16 * s->linesize;
575  cbp = &v->cbp[s->mb_x - s->mb_stride];
576  is_intra = &v->is_intra[s->mb_x - s->mb_stride];
577  uvmv = &v->luma_mv[s->mb_x - s->mb_stride];
578  ttblk = &v->ttblk[s->mb_x - s->mb_stride];
579  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
580  for (i = 0; i < block_count; i++)
581  vc1_p_v_loop_filter(v,
582  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
583  cbp,
584  is_intra,
585  i > 3 ? uvmv :
586  &s->current_picture.motion_val[0][s->block_index[i] - 2 * s->b8_stride + v->blocks_off],
587  i > 3 ? &v->mv_f[0][s->block_index[i] - s->mb_stride + v->mb_off] :
588  &v->mv_f[0][s->block_index[i] - 2 * s->b8_stride + v->blocks_off],
589  ttblk,
590  flags,
591  i);
592  }
593  dest = s->dest[0];
594  cbp = &v->cbp[s->mb_x];
595  is_intra = &v->is_intra[s->mb_x];
596  uvmv = &v->luma_mv[s->mb_x];
597  ttblk = &v->ttblk[s->mb_x];
598  flags = s->mb_y == s->start_mb_y ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
599  for (i = 0; i < block_count; i++)
600  vc1_p_v_loop_filter(v,
601  i > 3 ? s->dest[i - 3] : dest,
602  cbp,
603  is_intra,
604  i > 3 ? uvmv :
605  &s->current_picture.motion_val[0][s->block_index[i] + v->blocks_off],
606  i > 3 ? &v->mv_f[0][s->block_index[i] + v->mb_off] :
607  &v->mv_f[0][s->block_index[i] + v->blocks_off],
608  ttblk,
609  flags,
610  i);
611  }
612  }
613 
614  if (s->mb_y >= s->start_mb_y + 2) {
615  if (s->mb_x >= 2) {
616  dest = s->dest[0] - 32 * s->linesize - 32;
617  cbp = &v->cbp[s->mb_x - 2 * s->mb_stride - 2];
618  is_intra = &v->is_intra[s->mb_x - 2 * s->mb_stride - 2];
619  uvmv = &v->luma_mv[s->mb_x - 2 * s->mb_stride - 2];
620  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride - 2];
621  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
622  for (i = 0; i < block_count; i++)
623  vc1_p_h_loop_filter(v,
624  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 16 : dest,
625  cbp,
626  is_intra,
627  i > 3 ? uvmv :
628  &s->current_picture.motion_val[0][s->block_index[i] - 4 * s->b8_stride - 4 + v->blocks_off],
629  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 * s->mb_stride - 2 + v->mb_off] :
630  &v->mv_f[0][s->block_index[i] - 4 * s->b8_stride - 4 + v->blocks_off],
631  ttblk,
632  flags,
633  i);
634  }
635  if (s->mb_x == s->mb_width - 1) {
636  if (s->mb_x >= 1) {
637  dest = s->dest[0] - 32 * s->linesize - 16;
638  cbp = &v->cbp[s->mb_x - 2 * s->mb_stride - 1];
639  is_intra = &v->is_intra[s->mb_x - 2 * s->mb_stride - 1];
640  uvmv = &v->luma_mv[s->mb_x - 2 * s->mb_stride - 1];
641  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride - 1];
642  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
643  for (i = 0; i < block_count; i++)
644  vc1_p_h_loop_filter(v,
645  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 8 : dest,
646  cbp,
647  is_intra,
648  i > 3 ? uvmv :
649  &s->current_picture.motion_val[0][s->block_index[i] - 4 * s->b8_stride - 2 + v->blocks_off],
650  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 * s->mb_stride - 1 + v->mb_off] :
651  &v->mv_f[0][s->block_index[i] - 4 * s->b8_stride - 2 + v->blocks_off],
652  ttblk,
653  flags,
654  i);
655  }
656  dest = s->dest[0] - 32 * s->linesize;
657  cbp = &v->cbp[s->mb_x - 2 * s->mb_stride];
658  is_intra = &v->is_intra[s->mb_x - 2 * s->mb_stride];
659  uvmv = &v->luma_mv[s->mb_x - 2 * s->mb_stride];
660  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride];
661  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
662  for (i = 0; i < block_count; i++)
663  vc1_p_h_loop_filter(v,
664  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize : dest,
665  cbp,
666  is_intra,
667  i > 3 ? uvmv :
668  &s->current_picture.motion_val[0][s->block_index[i] - 4 * s->b8_stride + v->blocks_off],
669  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 * s->mb_stride + v->mb_off] :
670  &v->mv_f[0][s->block_index[i] - 4 * s->b8_stride + v->blocks_off],
671  ttblk,
672  flags,
673  i);
674  }
675  }
676  if (s->mb_y == s->end_mb_y - 1) {
677  if (s->mb_y >= s->start_mb_y + 1) {
678  if (s->mb_x >= 2) {
679  dest = s->dest[0] - 16 * s->linesize - 32;
680  cbp = &v->cbp[s->mb_x - s->mb_stride - 2];
681  is_intra = &v->is_intra[s->mb_x - s->mb_stride - 2];
682  uvmv = &v->luma_mv[s->mb_x - s->mb_stride - 2];
683  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 2];
684  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
685  for (i = 0; i < block_count; i++)
686  vc1_p_h_loop_filter(v,
687  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 16 : dest,
688  cbp,
689  is_intra,
690  i > 3 ? uvmv :
691  &s->current_picture.motion_val[0][s->block_index[i] - 2 * s->b8_stride - 4 + v->blocks_off],
692  i > 3 ? &v->mv_f[0][s->block_index[i] - s->mb_stride - 2 + v->mb_off] :
693  &v->mv_f[0][s->block_index[i] - 2 * s->b8_stride - 4 + v->blocks_off],
694  ttblk,
695  flags,
696  i);
697  }
698  if (s->mb_x == s->mb_width - 1) {
699  if (s->mb_x >= 1) {
700  dest = s->dest[0] - 16 * s->linesize - 16;
701  cbp = &v->cbp[s->mb_x - s->mb_stride - 1];
702  is_intra = &v->is_intra[s->mb_x - s->mb_stride - 1];
703  uvmv = &v->luma_mv[s->mb_x - s->mb_stride - 1];
704  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 1];
705  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
706  for (i = 0; i < block_count; i++)
707  vc1_p_h_loop_filter(v,
708  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
709  cbp,
710  is_intra,
711  i > 3 ? uvmv :
712  &s->current_picture.motion_val[0][s->block_index[i] - 2 * s->b8_stride - 2 + v->blocks_off],
713  i > 3 ? &v->mv_f[0][s->block_index[i] - s->mb_stride - 1 + v->mb_off] :
714  &v->mv_f[0][s->block_index[i] - 2 * s->b8_stride - 2 + v->blocks_off],
715  ttblk,
716  flags,
717  i);
718  }
719  dest = s->dest[0] - 16 * s->linesize;
720  cbp = &v->cbp[s->mb_x - s->mb_stride];
721  is_intra = &v->is_intra[s->mb_x - s->mb_stride];
722  uvmv = &v->luma_mv[s->mb_x - s->mb_stride];
723  ttblk = &v->ttblk[s->mb_x - s->mb_stride];
724  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
725  for (i = 0; i < block_count; i++)
726  vc1_p_h_loop_filter(v,
727  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
728  cbp,
729  is_intra,
730  i > 3 ? uvmv :
731  &s->current_picture.motion_val[0][s->block_index[i] - 2 * s->b8_stride + v->blocks_off],
732  i > 3 ? &v->mv_f[0][s->block_index[i] - s->mb_stride + v->mb_off] :
733  &v->mv_f[0][s->block_index[i] - 2 * s->b8_stride + v->blocks_off],
734  ttblk,
735  flags,
736  i);
737  }
738  }
739  if (s->mb_x >= 2) {
740  dest = s->dest[0] - 32;
741  cbp = &v->cbp[s->mb_x - 2];
742  is_intra = &v->is_intra[s->mb_x - 2];
743  uvmv = &v->luma_mv[s->mb_x - 2];
744  ttblk = &v->ttblk[s->mb_x - 2];
745  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
746  for (i = 0; i < block_count; i++)
747  vc1_p_h_loop_filter(v,
748  i > 3 ? s->dest[i - 3] - 16 : dest,
749  cbp,
750  is_intra,
751  i > 3 ? uvmv :
752  &s->current_picture.motion_val[0][s->block_index[i] - 4 + v->blocks_off],
753  i > 3 ? &v->mv_f[0][s->block_index[i] - 2 + v->mb_off] :
754  &v->mv_f[0][s->block_index[i] - 4 + v->blocks_off],
755  ttblk,
756  flags,
757  i);
758  }
759  if (s->mb_x == s->mb_width - 1) {
760  if (s->mb_x >= 1) {
761  dest = s->dest[0] - 16;
762  cbp = &v->cbp[s->mb_x - 1];
763  is_intra = &v->is_intra[s->mb_x - 1];
764  uvmv = &v->luma_mv[s->mb_x - 1];
765  ttblk = &v->ttblk[s->mb_x - 1];
766  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
767  for (i = 0; i < block_count; i++)
768  vc1_p_h_loop_filter(v,
769  i > 3 ? s->dest[i - 3] - 8 : dest,
770  cbp,
771  is_intra,
772  i > 3 ? uvmv :
773  &s->current_picture.motion_val[0][s->block_index[i] - 2 + v->blocks_off],
774  i > 3 ? &v->mv_f[0][s->block_index[i] - 1 + v->mb_off] :
775  &v->mv_f[0][s->block_index[i] - 2 + v->blocks_off],
776  ttblk,
777  flags,
778  i);
779  }
780  dest = s->dest[0];
781  cbp = &v->cbp[s->mb_x];
782  is_intra = &v->is_intra[s->mb_x];
783  uvmv = &v->luma_mv[s->mb_x];
784  ttblk = &v->ttblk[s->mb_x];
785  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
786  for (i = 0; i < block_count; i++)
787  vc1_p_h_loop_filter(v,
788  i > 3 ? s->dest[i - 3] : dest,
789  cbp,
790  is_intra,
791  i > 3 ? uvmv :
792  &s->current_picture.motion_val[0][s->block_index[i] + v->blocks_off],
793  i > 3 ? &v->mv_f[0][s->block_index[i] + v->mb_off] :
794  &v->mv_f[0][s->block_index[i] + v->blocks_off],
795  ttblk,
796  flags,
797  i);
798  }
799  }
800 }
801 
802 static av_always_inline void vc1_p_h_intfr_loop_filter(VC1Context *v, uint8_t *dest, int *ttblk,
803  uint32_t flags, uint8_t fieldtx, int block_num)
804 {
805  MpegEncContext *s = &v->s;
806  int pq = v->pq;
807  int tt;
808  int linesize = block_num > 3 ? s->uvlinesize : s->linesize;
809  uint8_t *dst;
810 
811  if (block_num > 3)
812  dst = dest;
813  else
814  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
815 
816  tt = ttblk[0] >> (block_num * 4) & 0xf;
817  if (block_num < 4) {
818  if (fieldtx) {
819  if (block_num < 2) {
820  if (tt == TT_4X4 || tt == TT_4X8)
821  v->vc1dsp.vc1_h_loop_filter8(dst + 4, 2 * linesize, pq);
822  if (!(flags & RIGHT_EDGE) || block_num == 0)
823  v->vc1dsp.vc1_h_loop_filter8(dst + 8, 2 * linesize, pq);
824  } else {
825  if (tt == TT_4X4 || tt == TT_4X8)
826  v->vc1dsp.vc1_h_loop_filter8(dst - 7 * linesize + 4, 2 * linesize, pq);
827  if (!(flags & RIGHT_EDGE) || block_num == 2)
828  v->vc1dsp.vc1_h_loop_filter8(dst - 7 * linesize + 8, 2 * linesize, pq);
829  }
830  } else {
831  if(tt == TT_4X4 || tt == TT_4X8) {
832  v->vc1dsp.vc1_h_loop_filter4(dst + 4, 2 * linesize, pq);
833  v->vc1dsp.vc1_h_loop_filter4(dst + linesize + 4, 2 * linesize, pq);
834  }
835  if (!(flags & RIGHT_EDGE) || !(block_num & 5)) {
836  v->vc1dsp.vc1_h_loop_filter4(dst + 8, 2 * linesize, pq);
837  v->vc1dsp.vc1_h_loop_filter4(dst + linesize + 8, 2 * linesize, pq);
838  }
839  }
840  } else {
841  if (tt == TT_4X4 || tt == TT_4X8) {
842  v->vc1dsp.vc1_h_loop_filter4(dst + 4, 2 * linesize, pq);
843  v->vc1dsp.vc1_h_loop_filter4(dst + linesize + 4, 2 * linesize, pq);
844  }
845  if (!(flags & RIGHT_EDGE)) {
846  v->vc1dsp.vc1_h_loop_filter4(dst + 8, 2 * linesize, pq);
847  v->vc1dsp.vc1_h_loop_filter4(dst + linesize + 8, 2 * linesize, pq);
848  }
849  }
850 }
851 
852 static av_always_inline void vc1_p_v_intfr_loop_filter(VC1Context *v, uint8_t *dest, int *ttblk,
853  uint32_t flags, uint8_t fieldtx, int block_num)
854 {
855  MpegEncContext *s = &v->s;
856  int pq = v->pq;
857  int tt;
858  int linesize = block_num > 3 ? s->uvlinesize : s->linesize;
859  uint8_t *dst;
860 
861  if (block_num > 3)
862  dst = dest;
863  else
864  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
865 
866  tt = ttblk[0] >> (block_num * 4) & 0xf;
867  if (block_num < 4) {
868  if (fieldtx) {
869  if (block_num < 2) {
870  if (tt == TT_4X4 || tt == TT_8X4)
871  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, 2 * linesize, pq);
872  if (!(flags & BOTTOM_EDGE))
873  v->vc1dsp.vc1_v_loop_filter8(dst + 16 * linesize, 2 * linesize, pq);
874  } else {
875  if (tt == TT_4X4 || tt == TT_8X4)
876  v->vc1dsp.vc1_v_loop_filter8(dst + linesize, 2 * linesize, pq);
877  if (!(flags & BOTTOM_EDGE))
878  v->vc1dsp.vc1_v_loop_filter8(dst + 9 * linesize, 2 * linesize, pq);
879  }
880  } else {
881  if (block_num < 2) {
882  if (!(flags & TOP_EDGE) && (tt == TT_4X4 || tt == TT_8X4)) {
883  v->vc1dsp.vc1_v_loop_filter8(dst + 4 * linesize, 2 * linesize, pq);
884  v->vc1dsp.vc1_v_loop_filter8(dst + 5 * linesize, 2 * linesize, pq);
885  }
886  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, 2 * linesize, pq);
887  v->vc1dsp.vc1_v_loop_filter8(dst + 9 * linesize, 2 * linesize, pq);
888  } else if (!(flags & BOTTOM_EDGE)) {
889  if (tt == TT_4X4 || tt == TT_8X4) {
890  v->vc1dsp.vc1_v_loop_filter8(dst + 4 * linesize, 2 * linesize, pq);
891  v->vc1dsp.vc1_v_loop_filter8(dst + 5 * linesize, 2 * linesize, pq);
892  }
893  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, 2 * linesize, pq);
894  v->vc1dsp.vc1_v_loop_filter8(dst + 9 * linesize, 2 * linesize, pq);
895  }
896  }
897  } else {
898  if (!(flags & BOTTOM_EDGE)) {
899  if (!(flags & TOP_EDGE) && (tt == TT_4X4 || tt == TT_8X4)) {
900  v->vc1dsp.vc1_v_loop_filter8(dst + 4 * linesize, 2 * linesize, pq);
901  v->vc1dsp.vc1_v_loop_filter8(dst + 5 * linesize, 2 * linesize, pq);
902  }
903  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, 2 * linesize, pq);
904  v->vc1dsp.vc1_v_loop_filter8(dst + 9 * linesize, 2 * linesize, pq);
905  }
906  }
907 }
908 
909 void ff_vc1_p_intfr_loop_filter(VC1Context *v)
910 {
911  MpegEncContext *s = &v->s;
912  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
913  int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
914  uint8_t *dest;
915  int *ttblk;
916  uint32_t flags;
917  uint8_t fieldtx;
918  int i;
919 
920  /* Within a MB, the vertical loop filter always runs before the horizontal.
921  * To accomplish that, we run the V loop filter on all applicable
922  * horizontal borders of the MB above the last overlap filtered MB. Then,
923  * we wait for the loop filter iteration on the next row and next column to
924  * do H loop filter on all applicable vertical borders of this MB.
925  * Therefore, the loop filter trails by two rows and one column relative to
926  * the overlap filter and two rows and two columns relative to the decoding
927  * loop. */
928  if (s->mb_x) {
929  if (s->mb_y >= s->start_mb_y + 1) {
930  dest = s->dest[0] - 16 * s->linesize - 16;
931  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 1];
932  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
933  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride - 1];
934  for (i = 0; i < block_count; i++)
935  vc1_p_v_intfr_loop_filter(v,
936  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
937  ttblk,
938  flags,
939  fieldtx,
940  i);
941  }
942  }
943  if (s->mb_x == s->mb_width - 1) {
944  if (s->mb_y >= s->start_mb_y + 1) {
945  dest = s->dest[0] - 16 * s->linesize;
946  ttblk = &v->ttblk[s->mb_x - s->mb_stride];
947  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
948  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride];
949  for (i = 0; i < block_count; i++)
950  vc1_p_v_intfr_loop_filter(v,
951  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
952  ttblk,
953  flags,
954  fieldtx,
955  i);
956  }
957  }
958  if (s->mb_y == s->end_mb_y - 1) {
959  if (s->mb_x) {
960  dest = s->dest[0] - 16;
961  ttblk = &v->ttblk[s->mb_x - 1];
962  flags = s->mb_y == s->start_mb_y ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
963  fieldtx = v->fieldtx_plane[mb_pos - 1];
964  for (i = 0; i < block_count; i++)
965  vc1_p_v_intfr_loop_filter(v,
966  i > 3 ? s->dest[i - 3] - 8 : dest,
967  ttblk,
968  flags,
969  fieldtx,
970  i);
971  }
972  if (s->mb_x == s->mb_width - 1) {
973  dest = s->dest[0];
974  ttblk = &v->ttblk[s->mb_x];
975  flags = s->mb_y == s->start_mb_y ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
976  fieldtx = v->fieldtx_plane[mb_pos];
977  for (i = 0; i < block_count; i++)
978  vc1_p_v_intfr_loop_filter(v,
979  i > 3 ? s->dest[i - 3] : dest,
980  ttblk,
981  flags,
982  fieldtx,
983  i);
984  }
985  }
986 
987  if (s->mb_y >= s->start_mb_y + 2) {
988  if (s->mb_x >= 2) {
989  dest = s->dest[0] - 32 * s->linesize - 32;
990  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride - 2];
991  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
992  fieldtx = v->fieldtx_plane[mb_pos - 2 * s->mb_stride - 2];
993  for (i = 0; i < block_count; i++)
994  vc1_p_h_intfr_loop_filter(v,
995  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 16 : dest,
996  ttblk,
997  flags,
998  fieldtx,
999  i);
1000  }
1001  if (s->mb_x == s->mb_width - 1) {
1002  if (s->mb_x >= 1) {
1003  dest = s->dest[0] - 32 * s->linesize - 16;
1004  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride - 1];
1005  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
1006  fieldtx = v->fieldtx_plane[mb_pos - 2 * s->mb_stride - 1];
1007  for (i = 0; i < block_count; i++)
1008  vc1_p_h_intfr_loop_filter(v,
1009  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 8 : dest,
1010  ttblk,
1011  flags,
1012  fieldtx,
1013  i);
1014  }
1015  dest = s->dest[0] - 32 * s->linesize;
1016  ttblk = &v->ttblk[s->mb_x - 2 * s->mb_stride];
1017  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
1018  fieldtx = v->fieldtx_plane[mb_pos - 2 * s->mb_stride];
1019  for (i = 0; i < block_count; i++)
1020  vc1_p_h_intfr_loop_filter(v,
1021  i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize : dest,
1022  ttblk,
1023  flags,
1024  fieldtx,
1025  i);
1026  }
1027  }
1028  if (s->mb_y == s->end_mb_y - 1) {
1029  if (s->mb_y >= s->start_mb_y + 1) {
1030  if (s->mb_x >= 2) {
1031  dest = s->dest[0] - 16 * s->linesize - 32;
1032  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 2];
1033  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
1034  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride - 2];
1035  for (i = 0; i < block_count; i++)
1036  vc1_p_h_intfr_loop_filter(v,
1037  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 16 : dest,
1038  ttblk,
1039  flags,
1040  fieldtx,
1041  i);
1042  }
1043  if (s->mb_x == s->mb_width - 1) {
1044  if (s->mb_x >= 1) {
1045  dest = s->dest[0] - 16 * s->linesize - 16;
1046  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 1];
1047  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
1048  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride - 1];
1049  for (i = 0; i < block_count; i++)
1050  vc1_p_h_intfr_loop_filter(v,
1051  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
1052  ttblk,
1053  flags,
1054  fieldtx,
1055  i);
1056  }
1057  dest = s->dest[0] - 16 * s->linesize;
1058  ttblk = &v->ttblk[s->mb_x - s->mb_stride];
1059  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
1060  fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride];
1061  for (i = 0; i < block_count; i++)
1062  vc1_p_h_intfr_loop_filter(v,
1063  i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
1064  ttblk,
1065  flags,
1066  fieldtx,
1067  i);
1068  }
1069  }
1070  if (s->mb_x >= 2) {
1071  dest = s->dest[0] - 32;
1072  ttblk = &v->ttblk[s->mb_x - 2];
1073  flags = s->mb_x == 2 ? LEFT_EDGE : 0;
1074  fieldtx = v->fieldtx_plane[mb_pos - 2];
1075  for (i = 0; i < block_count; i++)
1076  vc1_p_h_intfr_loop_filter(v,
1077  i > 3 ? s->dest[i - 3] - 16 : dest,
1078  ttblk,
1079  flags,
1080  fieldtx,
1081  i);
1082  }
1083  if (s->mb_x == s->mb_width - 1) {
1084  if (s->mb_x >= 1) {
1085  dest = s->dest[0] - 16;
1086  ttblk = &v->ttblk[s->mb_x - 1];
1087  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
1088  fieldtx = v->fieldtx_plane[mb_pos - 1];
1089  for (i = 0; i < block_count; i++)
1090  vc1_p_h_intfr_loop_filter(v,
1091  i > 3 ? s->dest[i - 3] - 8 : dest,
1092  ttblk,
1093  flags,
1094  fieldtx,
1095  i);
1096  }
1097  dest = s->dest[0];
1098  ttblk = &v->ttblk[s->mb_x];
1099  flags = s->mb_x ? RIGHT_EDGE : LEFT_EDGE | RIGHT_EDGE;
1100  fieldtx = v->fieldtx_plane[mb_pos];
1101  for (i = 0; i < block_count; i++)
1102  vc1_p_h_intfr_loop_filter(v,
1103  i > 3 ? s->dest[i - 3] : dest,
1104  ttblk,
1105  flags,
1106  fieldtx,
1107  i);
1108  }
1109  }
1110 }
1111 
1112 static av_always_inline void vc1_b_h_intfi_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp,
1113  int *ttblk, uint32_t flags, int block_num)
1114 {
1115  MpegEncContext *s = &v->s;
1116  int pq = v->pq;
1117  uint8_t *dst;
1118  uint32_t block_cbp = cbp[0] >> (block_num * 4);
1119  int tt;
1120  int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize;
1121 
1122  if (block_num > 3)
1123  dst = dest;
1124  else
1125  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
1126 
1127  if (!(flags & RIGHT_EDGE) || !(block_num & 5)) {
1128  if (block_num > 3)
1129  v->vc1dsp.vc1_h_loop_filter8(dst + 8, linesize, pq);
1130  else
1131  v->vc1dsp.vc1_h_loop_filter8(dst + 8, linesize, pq);
1132  }
1133 
1134  tt = ttblk[0] >> (block_num * 4) & 0xf;
1135  if (tt == TT_4X4 || tt == TT_4X8) {
1136  idx = (block_cbp | (block_cbp >> 1)) & 5;
1137  if (idx & 1)
1138  v->vc1dsp.vc1_h_loop_filter4(dst + 4 * linesize + 4, linesize, pq);
1139  if (idx & 4)
1140  v->vc1dsp.vc1_h_loop_filter4(dst + 4, linesize, pq);
1141  }
1142 }
1143 
1144 static av_always_inline void vc1_b_v_intfi_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp,
1145  int *ttblk, uint32_t flags, int block_num)
1146 {
1147  MpegEncContext *s = &v->s;
1148  int pq = v->pq;
1149  uint8_t *dst;
1150  uint32_t block_cbp = cbp[0] >> (block_num * 4);
1151  int tt;
1152  int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize;
1153 
1154  if (block_num > 3)
1155  dst = dest;
1156  else
1157  dst = dest + (block_num & 2) * 4 * s->linesize + (block_num & 1) * 8;
1158 
1159  if(!(flags & BOTTOM_EDGE) || block_num < 2)
1160  v->vc1dsp.vc1_v_loop_filter8(dst + 8 * linesize, linesize, pq);
1161 
1162  tt = ttblk[0] >> (block_num * 4) & 0xf;
1163  if (tt == TT_4X4 || tt == TT_8X4) {
1164  idx = (block_cbp | (block_cbp >> 2)) & 3;
1165  if (idx & 1)
1166  v->vc1dsp.vc1_v_loop_filter4(dst + 4 * linesize + 4, linesize, pq);
1167  if (idx & 2)
1168  v->vc1dsp.vc1_v_loop_filter4(dst + 4 * linesize, linesize, pq);
1169  }
1170 }
1171 
1172 void ff_vc1_b_intfi_loop_filter(VC1Context *v)
1173 {
1174  MpegEncContext *s = &v->s;
1175  int block_count = CONFIG_GRAY && (s->avctx->flags & AV_CODEC_FLAG_GRAY) ? 4 : 6;
1176  uint8_t *dest;
1177  uint32_t *cbp;
1178  int *ttblk;
1179  uint32_t flags = 0;
1180  int i;
1181 
1182  /* Within a MB, the vertical loop filter always runs before the horizontal.
1183  * To accomplish that, we run the V loop filter on all applicable
1184  * horizontal borders of the MB above the currently decoded MB. Then,
1185  * we wait for the next loop filter iteration to do H loop filter on all
1186  * applicable vertical borders of this MB. Therefore, the loop filter
1187  * trails by one row and one column relative to the decoding loop. */
1188  if (!s->first_slice_line) {
1189  dest = s->dest[0] - 16 * s->linesize;
1190  cbp = &v->cbp[s->mb_x - s->mb_stride];
1191  ttblk = &v->ttblk[s->mb_x - s->mb_stride];
1192  flags = s->mb_y == s->start_mb_y + 1 ? TOP_EDGE : 0;
1193  for (i = 0; i < block_count; i++)
1194  vc1_b_v_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest, cbp, ttblk, flags, i);
1195  }
1196  if (s->mb_y == s->end_mb_y - 1) {
1197  dest = s->dest[0];
1198  cbp = &v->cbp[s->mb_x];
1199  ttblk = &v->ttblk[s->mb_x];
1200  flags = s->first_slice_line ? TOP_EDGE | BOTTOM_EDGE : BOTTOM_EDGE;
1201  for (i = 0; i < block_count; i++)
1202  vc1_b_v_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] : dest, cbp, ttblk, flags, i);
1203  }
1204 
1205  if (!s->first_slice_line) {
1206  dest = s->dest[0] - 16 * s->linesize - 16;
1207  cbp = &v->cbp[s->mb_x - s->mb_stride - 1];
1208  ttblk = &v->ttblk[s->mb_x - s->mb_stride - 1];
1209  if (s->mb_x) {
1210  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
1211  for (i = 0; i < block_count; i++)
1212  vc1_b_h_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest, cbp, ttblk, flags, i);
1213  }
1214  if (s->mb_x == s->mb_width - 1) {
1215  dest += 16;
1216  cbp++;
1217  ttblk++;
1218  flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
1219  for (i = 0; i < block_count; i++)
1220  vc1_b_h_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest, cbp, ttblk, flags, i);
1221  }
1222  }
1223  if (s->mb_y == s->end_mb_y - 1) {
1224  dest = s->dest[0] - 16;
1225  cbp = &v->cbp[s->mb_x - 1];
1226  ttblk = &v->ttblk[s->mb_x - 1];
1227  if (s->mb_x) {
1228  flags = s->mb_x == 1 ? LEFT_EDGE : 0;
1229  for (i = 0; i < block_count; i++)
1230  vc1_b_h_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 : dest, cbp, ttblk, flags, i);
1231  }
1232  if (s->mb_x == s->mb_width - 1) {
1233  dest += 16;
1234  cbp++;
1235  ttblk++;
1236  flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
1237  for (i = 0; i < block_count; i++)
1238  vc1_b_h_intfi_loop_filter(v, i > 3 ? s->dest[i - 3] : dest, cbp, ttblk, flags, i);
1239  }
1240  }
1241 }
vc1_p_v_loop_filter
static av_always_inline void vc1_p_v_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp, uint8_t *is_intra, int16_t(*mv)[2], uint8_t *mv_f, int *ttblk, uint32_t flags, int block_num)
Definition: vc1_loopfilter.c:416
VC1DSPContext::vc1_v_loop_filter16
void(* vc1_v_loop_filter16)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:53
VC1Context
The VC1 Context.
Definition: vc1.h:173
vc1_p_h_intfr_loop_filter
static av_always_inline void vc1_p_h_intfr_loop_filter(VC1Context *v, uint8_t *dest, int *ttblk, uint32_t flags, uint8_t fieldtx, int block_num)
Definition: vc1_loopfilter.c:802
ff_vc1_i_overlap_filter
void ff_vc1_i_overlap_filter(VC1Context *v)
Definition: vc1_loopfilter.c:105
VC1Context::condover
uint8_t condover
Definition: vc1.h:324
VC1Context::left_blk_idx
int left_blk_idx
Definition: vc1.h:387
VC1Context::topleft_blk_idx
int topleft_blk_idx
Definition: vc1.h:387
VC1Context::cbp
uint32_t * cbp
Definition: vc1.h:388
VC1Context::end_mb_x
int end_mb_x
Horizontal macroblock limit (used only by mss2)
Definition: vc1.h:395
vc1dsp.h
vc1.h
ILACE_FRAME
@ ILACE_FRAME
in the bitstream is reported as 10b
Definition: vc1.h:150
mv
static const int8_t mv[256][2]
Definition: 4xm.c:80
vc1_h_overlap_filter
static av_always_inline void vc1_h_overlap_filter(VC1Context *v, int16_t(*left_block)[64], int16_t(*right_block)[64], int left_fieldtx, int right_fieldtx, int block_num)
Definition: vc1_loopfilter.c:34
ff_vc1_i_loop_filter
void ff_vc1_i_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:271
mpegvideo.h
VC1Context::luma_mv
int16_t((* luma_mv)[2]
Definition: vc1.h:390
VC1DSPContext::vc1_v_loop_filter4
void(* vc1_v_loop_filter4)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:49
vc1_b_v_intfi_loop_filter
static av_always_inline void vc1_b_v_intfi_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp, int *ttblk, uint32_t flags, int block_num)
Definition: vc1_loopfilter.c:1144
vc1_p_h_loop_filter
static av_always_inline void vc1_p_h_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp, uint8_t *is_intra, int16_t(*mv)[2], uint8_t *mv_f, int *ttblk, uint32_t flags, int block_num)
Definition: vc1_loopfilter.c:363
ILACE_FIELD
@ ILACE_FIELD
in the bitstream is reported as 11b
Definition: vc1.h:151
VC1DSPContext::vc1_h_loop_filter4
void(* vc1_h_loop_filter4)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:50
vc1_i_v_loop_filter
static av_always_inline void vc1_i_v_loop_filter(VC1Context *v, uint8_t *dest, uint32_t flags, uint8_t fieldtx, int block_num)
Definition: vc1_loopfilter.c:238
VC1DSPContext::vc1_h_loop_filter16
void(* vc1_h_loop_filter16)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:54
VC1Context::mb_type
uint8_t * mb_type[3]
Definition: vc1.h:262
s
#define s(width, name)
Definition: cbs_vp9.c:256
RIGHT_EDGE
#define RIGHT_EDGE
Definition: vc1_loopfilter.c:202
VC1Context::mv_f
uint8_t * mv_f[2]
0: MV obtained from same field, 1: opposite field
Definition: vc1.h:347
VC1Context::over_flags_plane
uint8_t * over_flags_plane
Overflags bitplane.
Definition: vc1.h:322
TT_8X4
@ TT_8X4
Definition: vc1.h:115
PROFILE_ADVANCED
@ PROFILE_ADVANCED
Definition: vc1_common.h:52
ff_vc1_p_intfr_loop_filter
void ff_vc1_p_intfr_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:909
VC1Context::pq
uint8_t pq
Definition: vc1.h:236
ff_vc1_b_intfi_loop_filter
void ff_vc1_b_intfi_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:1172
VC1Context::block
int16_t(* block)[6][64]
Definition: vc1.h:386
VC1Context::vc1dsp
VC1DSPContext vc1dsp
Definition: vc1.h:177
VC1Context::fieldtx_plane
uint8_t * fieldtx_plane
Definition: vc1.h:343
CONDOVER_ALL
@ CONDOVER_ALL
Definition: vc1.h:138
vc1_p_v_intfr_loop_filter
static av_always_inline void vc1_p_v_intfr_loop_filter(VC1Context *v, uint8_t *dest, int *ttblk, uint32_t flags, uint8_t fieldtx, int block_num)
Definition: vc1_loopfilter.c:852
VC1Context::is_intra
uint8_t * is_intra
Definition: vc1.h:389
AV_CODEC_FLAG_GRAY
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
Definition: avcodec.h:301
VC1Context::mb_off
int mb_off
Definition: vc1.h:361
VC1Context::top_blk_idx
int top_blk_idx
Definition: vc1.h:387
vc1_v_overlap_filter
static av_always_inline void vc1_v_overlap_filter(VC1Context *v, int16_t(*top_block)[64], int16_t(*bottom_block)[64], int block_num)
Definition: vc1_loopfilter.c:78
LEFT_EDGE
#define LEFT_EDGE
Definition: vc1_loopfilter.c:201
vc1_i_h_loop_filter
static av_always_inline void vc1_i_h_loop_filter(VC1Context *v, uint8_t *dest, uint32_t flags, int block_num)
Definition: vc1_loopfilter.c:206
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
TOP_EDGE
#define TOP_EDGE
Definition: vc1_loopfilter.c:203
xf
#define xf(width, name, var, range_min, range_max, subs,...)
Definition: cbs_av1.c:664
av_always_inline
#define av_always_inline
Definition: attributes.h:49
VC1Context::s
MpegEncContext s
Definition: vc1.h:174
VC1Context::ttblk
int * ttblk
Transform type at the block level.
Definition: vc1.h:257
avcodec.h
VC1DSPContext::vc1_h_loop_filter8
void(* vc1_h_loop_filter8)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:52
BOTTOM_EDGE
#define BOTTOM_EDGE
Definition: vc1_loopfilter.c:204
vc1_b_h_intfi_loop_filter
static av_always_inline void vc1_b_h_intfi_loop_filter(VC1Context *v, uint8_t *dest, uint32_t *cbp, int *ttblk, uint32_t flags, int block_num)
Definition: vc1_loopfilter.c:1112
VC1DSPContext::vc1_v_loop_filter8
void(* vc1_v_loop_filter8)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:51
VC1Context::profile
int profile
Sequence header data for all Profiles TODO: choose between ints, uint8_ts and monobit flags.
Definition: vc1.h:216
TT_4X8
@ TT_4X8
Definition: vc1.h:118
VC1Context::fcm
enum FrameCodingMode fcm
Frame decoding info for Advanced profile.
Definition: vc1.h:307
ff_vc1_p_loop_filter
void ff_vc1_p_loop_filter(VC1Context *v)
Definition: vc1_loopfilter.c:470
VC1Context::cur_blk_idx
int cur_blk_idx
Definition: vc1.h:387
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
VC1Context::blocks_off
int blocks_off
Definition: vc1.h:361
TT_4X4
@ TT_4X4
Definition: vc1.h:119
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:67
VC1DSPContext::vc1_v_s_overlap
void(* vc1_v_s_overlap)(int16_t *top, int16_t *bottom)
Definition: vc1dsp.h:47
VC1DSPContext::vc1_h_s_overlap
void(* vc1_h_s_overlap)(int16_t *left, int16_t *right, ptrdiff_t left_stride, ptrdiff_t right_stride, int flags)
Definition: vc1dsp.h:48
ff_vc1_p_overlap_filter
void ff_vc1_p_overlap_filter(VC1Context *v)
Definition: vc1_loopfilter.c:161
Generated on Tue Feb 28 2023 21:33:41 for FFmpeg by   doxygen 1.8.17