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vf_pullup.c
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1 /*
2  * Copyright (c) 2003 Rich Felker
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/avassert.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 #include "avfilter.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "video.h"
29 #include "vf_pullup.h"
30 
31 #define F_HAVE_BREAKS 1
32 #define F_HAVE_AFFINITY 2
33 
34 #define BREAK_LEFT 1
35 #define BREAK_RIGHT 2
36 
37 #define OFFSET(x) offsetof(PullupContext, x)
38 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
39 
40 static const AVOption pullup_options[] = {
41  { "jl", "set left junk size", OFFSET(junk_left), AV_OPT_TYPE_INT, {.i64=1}, 0, INT_MAX, FLAGS },
42  { "jr", "set right junk size", OFFSET(junk_right), AV_OPT_TYPE_INT, {.i64=1}, 0, INT_MAX, FLAGS },
43  { "jt", "set top junk size", OFFSET(junk_top), AV_OPT_TYPE_INT, {.i64=4}, 1, INT_MAX, FLAGS },
44  { "jb", "set bottom junk size", OFFSET(junk_bottom), AV_OPT_TYPE_INT, {.i64=4}, 1, INT_MAX, FLAGS },
45  { "sb", "set strict breaks", OFFSET(strict_breaks), AV_OPT_TYPE_BOOL,{.i64=0},-1, 1, FLAGS },
46  { "mp", "set metric plane", OFFSET(metric_plane), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mp" },
47  { "y", "luma", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mp" },
48  { "u", "chroma blue", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mp" },
49  { "v", "chroma red", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mp" },
50  { NULL }
51 };
52 
53 AVFILTER_DEFINE_CLASS(pullup);
54 
56 {
57  static const enum AVPixelFormat pix_fmts[] = {
65  };
66 
67  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
68  if (!fmts_list)
69  return AVERROR(ENOMEM);
70  return ff_set_common_formats(ctx, fmts_list);
71 }
72 
73 #define ABS(a) (((a) ^ ((a) >> 31)) - ((a) >> 31))
74 
75 static int diff_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
76 {
77  int i, j, diff = 0;
78 
79  for (i = 0; i < 4; i++) {
80  for (j = 0; j < 8; j++)
81  diff += ABS(a[j] - b[j]);
82  a += s;
83  b += s;
84  }
85 
86  return diff;
87 }
88 
89 static int comb_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
90 {
91  int i, j, comb = 0;
92 
93  for (i = 0; i < 4; i++) {
94  for (j = 0; j < 8; j++)
95  comb += ABS((a[j] << 1) - b[j - s] - b[j ]) +
96  ABS((b[j] << 1) - a[j ] - a[j + s]);
97  a += s;
98  b += s;
99  }
100 
101  return comb;
102 }
103 
104 static int var_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
105 {
106  int i, j, var = 0;
107 
108  for (i = 0; i < 3; i++) {
109  for (j = 0; j < 8; j++)
110  var += ABS(a[j] - a[j + s]);
111  a += s;
112  }
113 
114  return 4 * var; /* match comb scaling */
115 }
116 
118 {
119  f->diffs = av_calloc(FFALIGN(s->metric_length, 16), sizeof(*f->diffs));
120  f->combs = av_calloc(FFALIGN(s->metric_length, 16), sizeof(*f->combs));
121  f->vars = av_calloc(FFALIGN(s->metric_length, 16), sizeof(*f->vars));
122 
123  if (!f->diffs || !f->combs || !f->vars) {
124  av_freep(&f->diffs);
125  av_freep(&f->combs);
126  av_freep(&f->vars);
127  return AVERROR(ENOMEM);
128  }
129  return 0;
130 }
131 
132 static void free_field_queue(PullupField *head)
133 {
134  PullupField *f = head;
135  do {
136  PullupField *next;
137  if (!f)
138  break;
139  av_free(f->diffs);
140  av_free(f->combs);
141  av_free(f->vars);
142  next = f->next;
143  memset(f, 0, sizeof(*f)); // clear all pointers to avoid stale ones
144  av_free(f);
145  f = next;
146  } while (f != head);
147 }
148 
150 {
151  PullupField *head, *f;
152 
153  f = head = av_mallocz(sizeof(*head));
154  if (!f)
155  return NULL;
156 
157  if (alloc_metrics(s, f) < 0) {
158  av_free(f);
159  return NULL;
160  }
161 
162  for (; len > 0; len--) {
163  f->next = av_mallocz(sizeof(*f->next));
164  if (!f->next) {
165  free_field_queue(head);
166  return NULL;
167  }
168 
169  f->next->prev = f;
170  f = f->next;
171  if (alloc_metrics(s, f) < 0) {
172  free_field_queue(head);
173  return NULL;
174  }
175  }
176 
177  f->next = head;
178  head->prev = f;
179 
180  return head;
181 }
182 
183 static int config_input(AVFilterLink *inlink)
184 {
185  AVFilterContext *ctx = inlink->dst;
186  PullupContext *s = ctx->priv;
188  int mp = s->metric_plane;
189 
191 
192  if (mp + 1 > s->nb_planes) {
193  av_log(ctx, AV_LOG_ERROR, "input format does not have such plane\n");
194  return AVERROR(EINVAL);
195  }
196 
197  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
198  s->planeheight[0] = s->planeheight[3] = inlink->h;
199  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
200  s->planewidth[0] = s->planewidth[3] = inlink->w;
201 
202  s->metric_w = (s->planewidth[mp] - ((s->junk_left + s->junk_right) << 3)) >> 3;
203  s->metric_h = (s->planeheight[mp] - ((s->junk_top + s->junk_bottom) << 1)) >> 3;
204  s->metric_offset = (s->junk_left << 3) + (s->junk_top << 1) * s->planewidth[mp];
205  s->metric_length = s->metric_w * s->metric_h;
206 
207  av_log(ctx, AV_LOG_DEBUG, "w: %d h: %d\n", s->metric_w, s->metric_h);
208  av_log(ctx, AV_LOG_DEBUG, "offset: %d length: %d\n", s->metric_offset, s->metric_length);
209 
210  s->head = make_field_queue(s, 8);
211  if (!s->head)
212  return AVERROR(ENOMEM);
213 
214  s->diff = diff_c;
215  s->comb = comb_c;
216  s->var = var_c;
217 
218  if (ARCH_X86)
220  return 0;
221 }
222 
224 {
225  if (!b)
226  return NULL;
227 
228  if ((parity + 1) & 1)
229  b->lock[0]++;
230  if ((parity + 1) & 2)
231  b->lock[1]++;
232 
233  return b;
234 }
235 
237 {
238  if (!b)
239  return;
240 
241  if ((parity + 1) & 1)
242  b->lock[0]--;
243  if ((parity + 1) & 2)
244  b->lock[1]--;
245 }
246 
248 {
249  int i;
250 
251  if (b->planes[0])
252  return 0;
253  for (i = 0; i < s->nb_planes; i++) {
254  b->planes[i] = av_malloc(s->planeheight[i] * s->planewidth[i]);
255  }
256  if (s->nb_planes == 1)
257  b->planes[1] = av_malloc(4*256);
258 
259  return 0;
260 }
261 
263 {
264  int i;
265 
266  /* Try first to get the sister buffer for the previous field */
267  if (parity < 2 && s->last && parity != s->last->parity
268  && !s->last->buffer->lock[parity]) {
269  alloc_buffer(s, s->last->buffer);
270  return pullup_lock_buffer(s->last->buffer, parity);
271  }
272 
273  /* Prefer a buffer with both fields open */
274  for (i = 0; i < FF_ARRAY_ELEMS(s->buffers); i++) {
275  if (s->buffers[i].lock[0])
276  continue;
277  if (s->buffers[i].lock[1])
278  continue;
279  alloc_buffer(s, &s->buffers[i]);
280  return pullup_lock_buffer(&s->buffers[i], parity);
281  }
282 
283  if (parity == 2)
284  return 0;
285 
286  /* Search for any half-free buffer */
287  for (i = 0; i < FF_ARRAY_ELEMS(s->buffers); i++) {
288  if (((parity + 1) & 1) && s->buffers[i].lock[0])
289  continue;
290  if (((parity + 1) & 2) && s->buffers[i].lock[1])
291  continue;
292  alloc_buffer(s, &s->buffers[i]);
293  return pullup_lock_buffer(&s->buffers[i], parity);
294  }
295 
296  return NULL;
297 }
298 
300 {
301  PullupField *f;
302  int count = 1;
303 
304  if (!begin || !end)
305  return 0;
306 
307  for (f = begin; f != end; f = f->next)
308  count++;
309 
310  return count;
311 }
312 
313 static int find_first_break(PullupField *f, int max)
314 {
315  int i;
316 
317  for (i = 0; i < max; i++) {
318  if (f->breaks & BREAK_RIGHT || f->next->breaks & BREAK_LEFT)
319  return i + 1;
320  f = f->next;
321  }
322 
323  return 0;
324 }
325 
327 {
328  PullupField *f1 = f0->next;
329  PullupField *f2 = f1->next;
330  PullupField *f3 = f2->next;
331  int i, l, max_l = 0, max_r = 0;
332 
333  if (f0->flags & F_HAVE_BREAKS)
334  return;
335 
336  f0->flags |= F_HAVE_BREAKS;
337 
338  /* Special case when fields are 100% identical */
339  if (f0->buffer == f2->buffer && f1->buffer != f3->buffer) {
340  f2->breaks |= BREAK_RIGHT;
341  return;
342  }
343 
344  if (f0->buffer != f2->buffer && f1->buffer == f3->buffer) {
345  f1->breaks |= BREAK_LEFT;
346  return;
347  }
348 
349  for (i = 0; i < s->metric_length; i++) {
350  l = f2->diffs[i] - f3->diffs[i];
351 
352  if ( l > max_l)
353  max_l = l;
354  if (-l > max_r)
355  max_r = -l;
356  }
357 
358  /* Don't get tripped up when differences are mostly quant error */
359  if (max_l + max_r < 128)
360  return;
361  if (max_l > 4 * max_r)
362  f1->breaks |= BREAK_LEFT;
363  if (max_r > 4 * max_l)
364  f2->breaks |= BREAK_RIGHT;
365 }
366 
368 {
369  int i, max_l = 0, max_r = 0, l;
370 
371  if (f->flags & F_HAVE_AFFINITY)
372  return;
373 
374  f->flags |= F_HAVE_AFFINITY;
375 
376  if (f->buffer == f->next->next->buffer) {
377  f->affinity = 1;
378  f->next->affinity = 0;
379  f->next->next->affinity = -1;
380  f->next->flags |= F_HAVE_AFFINITY;
381  f->next->next->flags |= F_HAVE_AFFINITY;
382  return;
383  }
384 
385  for (i = 0; i < s->metric_length; i++) {
386  int v = f->vars[i];
387  int lv = f->prev->vars[i];
388  int rv = f->next->vars[i];
389  int lc = f-> combs[i] - 2*(v < lv ? v : lv);
390  int rc = f->next->combs[i] - 2*(v < rv ? v : rv);
391 
392  lc = FFMAX(lc, 0);
393  rc = FFMAX(rc, 0);
394  l = lc - rc;
395 
396  if ( l > max_l)
397  max_l = l;
398  if (-l > max_r)
399  max_r = -l;
400  }
401 
402  if (max_l + max_r < 64)
403  return;
404 
405  if (max_r > 6 * max_l)
406  f->affinity = -1;
407  else if (max_l > 6 * max_r)
408  f->affinity = 1;
409 }
410 
412 {
413  PullupField *f0 = s->first;
414  PullupField *f1 = f0->next;
415  PullupField *f2 = f1->next;
416  PullupField *f;
417  int i, l, n;
418 
419  if (queue_length(s->first, s->last) < 4)
420  return 0;
421 
422  f = s->first;
423  n = queue_length(f, s->last);
424  for (i = 0; i < n - 1; i++) {
425  if (i < n - 3)
426  compute_breaks(s, f);
427 
428  compute_affinity(s, f);
429 
430  f = f->next;
431  }
432 
433  if (f0->affinity == -1)
434  return 1;
435 
436  l = find_first_break(f0, 3);
437 
438  if (l == 1 && s->strict_breaks < 0)
439  l = 0;
440 
441  switch (l) {
442  case 1:
443  return 1 + (s->strict_breaks < 1 && f0->affinity == 1 && f1->affinity == -1);
444  case 2:
445  /* FIXME: strictly speaking, f0->prev is no longer valid... :) */
446  if (s->strict_pairs
447  && (f0->prev->breaks & BREAK_RIGHT) && (f2->breaks & BREAK_LEFT)
448  && (f0->affinity != 1 || f1->affinity != -1) )
449  return 1;
450  return 1 + (f1->affinity != 1);
451  case 3:
452  return 2 + (f2->affinity != 1);
453  default:
454  /* 9 possibilities covered before switch */
455  if (f1->affinity == 1)
456  return 1; /* covers 6 */
457  else if (f1->affinity == -1)
458  return 2; /* covers 6 */
459  else if (f2->affinity == -1) { /* covers 2 */
460  return (f0->affinity == 1) ? 3 : 1;
461  } else {
462  return 2; /* the remaining 6 */
463  }
464  }
465 }
466 
468 {
469  PullupFrame *fr = &s->frame;
470  int i, n = decide_frame_length(s);
471  int aff = s->first->next->affinity;
472 
474  if (!n || fr->lock)
475  return NULL;
476 
477  fr->lock++;
478  fr->length = n;
479  fr->parity = s->first->parity;
480  fr->buffer = 0;
481 
482  for (i = 0; i < n; i++) {
483  /* We cheat and steal the buffer without release+relock */
484  fr->ifields[i] = s->first->buffer;
485  s->first->buffer = 0;
486  s->first = s->first->next;
487  }
488 
489  if (n == 1) {
490  fr->ofields[fr->parity ] = fr->ifields[0];
491  fr->ofields[fr->parity ^ 1] = 0;
492  } else if (n == 2) {
493  fr->ofields[fr->parity ] = fr->ifields[0];
494  fr->ofields[fr->parity ^ 1] = fr->ifields[1];
495  } else if (n == 3) {
496  if (!aff)
497  aff = (fr->ifields[0] == fr->ifields[1]) ? -1 : 1;
498  fr->ofields[fr->parity ] = fr->ifields[1 + aff];
499  fr->ofields[fr->parity ^ 1] = fr->ifields[1 ];
500  }
501 
502  pullup_lock_buffer(fr->ofields[0], 0);
503  pullup_lock_buffer(fr->ofields[1], 1);
504 
505  if (fr->ofields[0] == fr->ofields[1]) {
506  fr->buffer = fr->ofields[0];
507  pullup_lock_buffer(fr->buffer, 2);
508  return fr;
509  }
510 
511  return fr;
512 }
513 
515 {
516  int i;
517 
518  for (i = 0; i < f->length; i++)
519  pullup_release_buffer(f->ifields[i], f->parity ^ (i & 1));
520 
521  pullup_release_buffer(f->ofields[0], 0);
522  pullup_release_buffer(f->ofields[1], 1);
523 
524  if (f->buffer)
526  f->lock--;
527 }
528 
529 static void compute_metric(PullupContext *s, int *dest,
530  PullupField *fa, int pa, PullupField *fb, int pb,
531  int (*func)(const uint8_t *, const uint8_t *, ptrdiff_t))
532 {
533  int mp = s->metric_plane;
534  int xstep = 8;
535  int ystep = s->planewidth[mp] << 3;
536  int stride = s->planewidth[mp] << 1; /* field stride */
537  int w = s->metric_w * xstep;
538  uint8_t *a, *b;
539  int x, y;
540 
541  if (!fa->buffer || !fb->buffer)
542  return;
543 
544  /* Shortcut for duplicate fields (e.g. from RFF flag) */
545  if (fa->buffer == fb->buffer && pa == pb) {
546  memset(dest, 0, s->metric_length * sizeof(*dest));
547  return;
548  }
549 
550  a = fa->buffer->planes[mp] + pa * s->planewidth[mp] + s->metric_offset;
551  b = fb->buffer->planes[mp] + pb * s->planewidth[mp] + s->metric_offset;
552 
553  for (y = 0; y < s->metric_h; y++) {
554  for (x = 0; x < w; x += xstep)
555  *dest++ = func(a + x, b + x, stride);
556  a += ystep; b += ystep;
557  }
558 }
559 
561 {
562  int ret;
563 
564  if (s->head->next == s->first) {
565  PullupField *f = av_mallocz(sizeof(*f));
566 
567  if (!f)
568  return AVERROR(ENOMEM);
569 
570  if ((ret = alloc_metrics(s, f)) < 0) {
571  av_free(f);
572  return ret;
573  }
574 
575  f->prev = s->head;
576  f->next = s->first;
577  s->head->next = f;
578  s->first->prev = f;
579  }
580 
581  return 0;
582 }
583 
585 {
586  PullupField *f;
587 
588  /* Grow the circular list if needed */
589  if (check_field_queue(s) < 0)
590  return;
591 
592  /* Cannot have two fields of same parity in a row; drop the new one */
593  if (s->last && s->last->parity == parity)
594  return;
595 
596  f = s->head;
597  f->parity = parity;
598  f->buffer = pullup_lock_buffer(b, parity);
599  f->flags = 0;
600  f->breaks = 0;
601  f->affinity = 0;
602 
603  compute_metric(s, f->diffs, f, parity, f->prev->prev, parity, s->diff);
604  compute_metric(s, f->combs, parity ? f->prev : f, 0, parity ? f : f->prev, 1, s->comb);
605  compute_metric(s, f->vars, f, parity, f, -1, s->var);
606  emms_c();
607 
608  /* Advance the circular list */
609  if (!s->first)
610  s->first = s->head;
611 
612  s->last = s->head;
613  s->head = s->head->next;
614 }
615 
616 static void copy_field(PullupContext *s,
617  PullupBuffer *dst, PullupBuffer *src, int parity)
618 {
619  uint8_t *dd, *ss;
620  int i;
621 
622  for (i = 0; i < s->nb_planes; i++) {
623  ss = src->planes[i] + parity * s->planewidth[i];
624  dd = dst->planes[i] + parity * s->planewidth[i];
625 
626  av_image_copy_plane(dd, s->planewidth[i] << 1,
627  ss, s->planewidth[i] << 1,
628  s->planewidth[i], s->planeheight[i] >> 1);
629  }
630 }
631 
633 {
634  int i;
635 
636  if (fr->buffer)
637  return;
638 
639  if (fr->length < 2)
640  return; /* FIXME: deal with this */
641 
642  for (i = 0; i < 2; i++) {
643  if (fr->ofields[i]->lock[i^1])
644  continue;
645 
646  fr->buffer = fr->ofields[i];
647  pullup_lock_buffer(fr->buffer, 2);
648  copy_field(s, fr->buffer, fr->ofields[i^1], i^1);
649  return;
650  }
651 
652  fr->buffer = pullup_get_buffer(s, 2);
653 
654  copy_field(s, fr->buffer, fr->ofields[0], 0);
655  copy_field(s, fr->buffer, fr->ofields[1], 1);
656 }
657 
658 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
659 {
660  AVFilterContext *ctx = inlink->dst;
661  AVFilterLink *outlink = ctx->outputs[0];
662  PullupContext *s = ctx->priv;
663  PullupBuffer *b;
664  PullupFrame *f;
665  AVFrame *out;
666  int p, ret = 0;
667 
668  b = pullup_get_buffer(s, 2);
669  if (!b) {
670  av_log(ctx, AV_LOG_WARNING, "Could not get buffer!\n");
671  f = pullup_get_frame(s);
673  goto end;
674  }
675 
677  (const uint8_t**)in->data, in->linesize,
678  inlink->format, inlink->w, inlink->h);
679 
680  p = in->interlaced_frame ? !in->top_field_first : 0;
681  pullup_submit_field(s, b, p );
682  pullup_submit_field(s, b, p^1);
683 
684  if (in->repeat_pict)
685  pullup_submit_field(s, b, p);
686 
687  pullup_release_buffer(b, 2);
688 
689  f = pullup_get_frame(s);
690  if (!f)
691  goto end;
692 
693  if (f->length < 2) {
695  f = pullup_get_frame(s);
696  if (!f)
697  goto end;
698  if (f->length < 2) {
700  if (!in->repeat_pict)
701  goto end;
702  f = pullup_get_frame(s);
703  if (!f)
704  goto end;
705  if (f->length < 2) {
707  goto end;
708  }
709  }
710  }
711 
712  /* If the frame isn't already exportable... */
713  if (!f->buffer)
714  pullup_pack_frame(s, f);
715 
716  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
717  if (!out) {
718  ret = AVERROR(ENOMEM);
719  goto end;
720  }
721  av_frame_copy_props(out, in);
722 
723  av_image_copy(out->data, out->linesize,
724  (const uint8_t**)f->buffer->planes, s->planewidth,
725  inlink->format, inlink->w, inlink->h);
726 
727  ret = ff_filter_frame(outlink, out);
729 end:
730  av_frame_free(&in);
731  return ret;
732 }
733 
735 {
736  PullupContext *s = ctx->priv;
737  int i;
738 
740  s->last = NULL;
741 
742  for (i = 0; i < FF_ARRAY_ELEMS(s->buffers); i++) {
743  av_freep(&s->buffers[i].planes[0]);
744  av_freep(&s->buffers[i].planes[1]);
745  av_freep(&s->buffers[i].planes[2]);
746  }
747 }
748 
749 static const AVFilterPad pullup_inputs[] = {
750  {
751  .name = "default",
752  .type = AVMEDIA_TYPE_VIDEO,
753  .filter_frame = filter_frame,
754  .config_props = config_input,
755  },
756  { NULL }
757 };
758 
759 static const AVFilterPad pullup_outputs[] = {
760  {
761  .name = "default",
762  .type = AVMEDIA_TYPE_VIDEO,
763  },
764  { NULL }
765 };
766 
768  .name = "pullup",
769  .description = NULL_IF_CONFIG_SMALL("Pullup from field sequence to frames."),
770  .priv_size = sizeof(PullupContext),
771  .priv_class = &pullup_class,
772  .uninit = uninit,
774  .inputs = pullup_inputs,
775  .outputs = pullup_outputs,
776 };
#define NULL
Definition: coverity.c:32
PullupFrame frame
Definition: vf_pullup.h:62
const char * s
Definition: avisynth_c.h:768
#define FLAGS
Definition: vf_pullup.c:38
static int alloc_metrics(PullupContext *s, PullupField *f)
Definition: vf_pullup.c:117
int parity
Definition: vf_pullup.h:44
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2263
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
static PullupBuffer * pullup_lock_buffer(PullupBuffer *b, int parity)
Definition: vf_pullup.c:223
PullupBuffer * buffer
Definition: vf_pullup.h:46
AVOption.
Definition: opt.h:245
static const AVOption pullup_options[]
Definition: vf_pullup.c:40
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2303
Main libavfilter public API header.
PullupBuffer * buffer
Definition: vf_pullup.h:31
const char * desc
Definition: nvenc.c:101
unsigned flags
Definition: vf_pullup.h:32
int repeat_pict
When decoding, this signals how much the picture must be delayed.
Definition: frame.h:313
const char * b
Definition: vf_curves.c:113
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:252
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
#define F_HAVE_AFFINITY
Definition: vf_pullup.c:32
int strict_breaks
Definition: vf_pullup.h:53
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
static void pullup_submit_field(PullupContext *s, PullupBuffer *b, int parity)
Definition: vf_pullup.c:584
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:260
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVFilter ff_vf_pullup
Definition: vf_pullup.c:767
const char * name
Pad name.
Definition: internal.h:59
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
int junk_bottom
Definition: vf_pullup.h:51
AVOptions.
static PullupBuffer * pullup_get_buffer(PullupContext *s, int parity)
Definition: vf_pullup.c:262
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_pullup.c:734
static void compute_breaks(PullupContext *s, PullupField *f0)
Definition: vf_pullup.c:326
int metric_offset
Definition: vf_pullup.h:56
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:318
void ff_pullup_init_x86(PullupContext *s)
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:53
int breaks
Definition: vf_pullup.h:33
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define AVERROR(e)
Definition: error.h:43
PullupField * head
Definition: vf_pullup.h:60
PullupBuffer * ifields[4]
Definition: vf_pullup.h:45
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:154
int lock[2]
Definition: vf_pullup.h:25
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
PullupField * last
Definition: vf_pullup.h:60
void * priv
private data for use by the filter
Definition: avfilter.h:322
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
simple assert() macros that are a bit more flexible than ISO C assert().
static void copy_field(PullupContext *s, PullupBuffer *dst, PullupBuffer *src, int parity)
Definition: vf_pullup.c:616
#define BREAK_RIGHT
Definition: vf_pullup.c:35
GLsizei count
Definition: opengl_enc.c:109
#define FFMAX(a, b)
Definition: common.h:94
PullupField * first
Definition: vf_pullup.h:60
int planewidth[4]
Definition: vf_pullup.h:58
void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4], const uint8_t *src_data[4], const int src_linesizes[4], enum AVPixelFormat pix_fmt, int width, int height)
Copy image in src_data to dst_data.
Definition: imgutils.c:302
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
int * diffs
Definition: vf_pullup.h:35
int * combs
Definition: vf_pullup.h:36
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
int strict_pairs
Definition: vf_pullup.h:54
static void free_field_queue(PullupField *head)
Definition: vf_pullup.c:132
static PullupFrame * pullup_get_frame(PullupContext *s)
Definition: vf_pullup.c:467
int planeheight[4]
Definition: vf_pullup.h:59
AVFormatContext * ctx
Definition: movenc.c:48
int(* var)(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.h:66
int parity
Definition: vf_pullup.h:30
mcdeint parity
Definition: vf_mcdeint.c:277
static const AVFilterPad pullup_inputs[]
Definition: vf_pullup.c:749
int affinity
Definition: vf_pullup.h:34
int n
Definition: avisynth_c.h:684
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define src
Definition: vp9dsp.c:530
static int var_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.c:104
int metric_plane
Definition: vf_pullup.h:52
static int find_first_break(PullupField *f, int max)
Definition: vf_pullup.c:313
static int diff_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.c:75
#define FF_ARRAY_ELEMS(a)
PullupBuffer * ofields[2]
Definition: vf_pullup.h:45
struct PullupField * next
Definition: vf_pullup.h:38
int(* comb)(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.h:65
int(* diff)(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.h:64
static void compute_affinity(PullupContext *s, PullupField *f)
Definition: vf_pullup.c:367
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
static int queue_length(PullupField *begin, PullupField *end)
Definition: vf_pullup.c:299
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
#define ss
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
static void pullup_release_frame(PullupFrame *f)
Definition: vf_pullup.c:514
#define ABS(a)
Definition: vf_pullup.c:73
#define OFFSET(x)
Definition: vf_pullup.c:37
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Filter definition.
Definition: avfilter.h:144
static int check_field_queue(PullupContext *s)
Definition: vf_pullup.c:560
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_pullup.c:658
#define BREAK_LEFT
Definition: vf_pullup.c:34
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
const char * name
Filter name.
Definition: avfilter.h:148
static const AVFilterPad pullup_outputs[]
Definition: vf_pullup.c:759
static void pullup_release_buffer(PullupBuffer *b, int parity)
Definition: vf_pullup.c:236
uint8_t * planes[4]
Definition: vf_pullup.h:26
struct PullupField * prev
Definition: vf_pullup.h:38
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
AVFILTER_DEFINE_CLASS(pullup)
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
static int config_input(AVFilterLink *inlink)
Definition: vf_pullup.c:183
static int alloc_buffer(PullupContext *s, PullupBuffer *b)
Definition: vf_pullup.c:247
static int comb_c(const uint8_t *a, const uint8_t *b, ptrdiff_t s)
Definition: vf_pullup.c:89
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int length
Definition: vf_pullup.h:43
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
int junk_right
Definition: vf_pullup.h:51
Y , 8bpp.
Definition: pixfmt.h:70
int * vars
Definition: vf_pullup.h:37
static void pullup_pack_frame(PullupContext *s, PullupFrame *fr)
Definition: vf_pullup.c:632
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
int metric_length
Definition: vf_pullup.h:55
static av_always_inline int diff(const uint32_t a, const uint32_t b)
#define av_free(p)
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:323
int len
PullupBuffer buffers[10]
Definition: vf_pullup.h:61
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:271
An instance of a filter.
Definition: avfilter.h:307
FILE * out
Definition: movenc.c:54
#define av_freep(p)
#define F_HAVE_BREAKS
Definition: vf_pullup.c:31
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
static int decide_frame_length(PullupContext *s)
Definition: vf_pullup.c:411
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:287
static int query_formats(AVFilterContext *ctx)
Definition: vf_pullup.c:55
static void compute_metric(PullupContext *s, int *dest, PullupField *fa, int pa, PullupField *fb, int pb, int(*func)(const uint8_t *, const uint8_t *, ptrdiff_t))
Definition: vf_pullup.c:529
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
static PullupField * make_field_queue(PullupContext *s, int len)
Definition: vf_pullup.c:149
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:581
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58