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vf_bwdif.c
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1 /*
2  * BobWeaver Deinterlacing Filter
3  * Copyright (C) 2016 Thomas Mundt <loudmax@yahoo.de>
4  *
5  * Based on YADIF (Yet Another Deinterlacing Filter)
6  * Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at>
7  * 2010 James Darnley <james.darnley@gmail.com>
8  *
9  * With use of Weston 3 Field Deinterlacing Filter algorithm
10  * Copyright (C) 2012 British Broadcasting Corporation, All Rights Reserved
11  * Author of de-interlace algorithm: Jim Easterbrook for BBC R&D
12  * Based on the process described by Martin Weston for BBC R&D
13  *
14  * This file is part of FFmpeg.
15  *
16  * FFmpeg is free software; you can redistribute it and/or
17  * modify it under the terms of the GNU Lesser General Public
18  * License as published by the Free Software Foundation; either
19  * version 2.1 of the License, or (at your option) any later version.
20  *
21  * FFmpeg is distributed in the hope that it will be useful,
22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24  * Lesser General Public License for more details.
25  *
26  * You should have received a copy of the GNU Lesser General Public
27  * License along with FFmpeg; if not, write to the Free Software
28  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29  */
30 
31 #include "libavutil/avassert.h"
32 #include "libavutil/common.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/imgutils.h"
36 #include "avfilter.h"
37 #include "formats.h"
38 #include "internal.h"
39 #include "video.h"
40 #include "bwdif.h"
41 
42 /*
43  * Filter coefficients coef_lf and coef_hf taken from BBC PH-2071 (Weston 3 Field Deinterlacer).
44  * Used when there is spatial and temporal interpolation.
45  * Filter coefficients coef_sp are used when there is spatial interpolation only.
46  * Adjusted for matching visual sharpness impression of spatial and temporal interpolation.
47  */
48 static const uint16_t coef_lf[2] = { 4309, 213 };
49 static const uint16_t coef_hf[3] = { 5570, 3801, 1016 };
50 static const uint16_t coef_sp[2] = { 5077, 981 };
51 
52 typedef struct ThreadData {
54  int plane;
55  int w, h;
56  int parity;
57  int tff;
58 } ThreadData;
59 
60 #define FILTER_INTRA() \
61  for (x = 0; x < w; x++) { \
62  interpol = (coef_sp[0] * (cur[mrefs] + cur[prefs]) - coef_sp[1] * (cur[mrefs3] + cur[prefs3])) >> 13; \
63  dst[0] = av_clip(interpol, 0, clip_max); \
64  \
65  dst++; \
66  cur++; \
67  }
68 
69 #define FILTER1() \
70  for (x = 0; x < w; x++) { \
71  int c = cur[mrefs]; \
72  int d = (prev2[0] + next2[0]) >> 1; \
73  int e = cur[prefs]; \
74  int temporal_diff0 = FFABS(prev2[0] - next2[0]); \
75  int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e)) >> 1; \
76  int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e)) >> 1; \
77  int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \
78  \
79  if (!diff) { \
80  dst[0] = d; \
81  } else {
82 
83 #define SPAT_CHECK() \
84  int b = ((prev2[mrefs2] + next2[mrefs2]) >> 1) - c; \
85  int f = ((prev2[prefs2] + next2[prefs2]) >> 1) - e; \
86  int dc = d - c; \
87  int de = d - e; \
88  int max = FFMAX3(de, dc, FFMIN(b, f)); \
89  int min = FFMIN3(de, dc, FFMAX(b, f)); \
90  diff = FFMAX3(diff, min, -max);
91 
92 #define FILTER_LINE() \
93  SPAT_CHECK() \
94  if (FFABS(c - e) > temporal_diff0) { \
95  interpol = (((coef_hf[0] * (prev2[0] + next2[0]) \
96  - coef_hf[1] * (prev2[mrefs2] + next2[mrefs2] + prev2[prefs2] + next2[prefs2]) \
97  + coef_hf[2] * (prev2[mrefs4] + next2[mrefs4] + prev2[prefs4] + next2[prefs4])) >> 2) \
98  + coef_lf[0] * (c + e) - coef_lf[1] * (cur[mrefs3] + cur[prefs3])) >> 13; \
99  } else { \
100  interpol = (coef_sp[0] * (c + e) - coef_sp[1] * (cur[mrefs3] + cur[prefs3])) >> 13; \
101  }
102 
103 #define FILTER_EDGE() \
104  if (spat) { \
105  SPAT_CHECK() \
106  } \
107  interpol = (c + e) >> 1;
108 
109 #define FILTER2() \
110  if (interpol > d + diff) \
111  interpol = d + diff; \
112  else if (interpol < d - diff) \
113  interpol = d - diff; \
114  \
115  dst[0] = av_clip(interpol, 0, clip_max); \
116  } \
117  \
118  dst++; \
119  cur++; \
120  prev++; \
121  next++; \
122  prev2++; \
123  next2++; \
124  }
125 
126 static void filter_intra(void *dst1, void *cur1, int w, int prefs, int mrefs,
127  int prefs3, int mrefs3, int parity, int clip_max)
128 {
129  uint8_t *dst = dst1;
130  uint8_t *cur = cur1;
131  int interpol, x;
132 
133  FILTER_INTRA()
134 }
135 
136 static void filter_line_c(void *dst1, void *prev1, void *cur1, void *next1,
137  int w, int prefs, int mrefs, int prefs2, int mrefs2,
138  int prefs3, int mrefs3, int prefs4, int mrefs4,
139  int parity, int clip_max)
140 {
141  uint8_t *dst = dst1;
142  uint8_t *prev = prev1;
143  uint8_t *cur = cur1;
144  uint8_t *next = next1;
145  uint8_t *prev2 = parity ? prev : cur ;
146  uint8_t *next2 = parity ? cur : next;
147  int interpol, x;
148 
149  FILTER1()
150  FILTER_LINE()
151  FILTER2()
152 }
153 
154 static void filter_edge(void *dst1, void *prev1, void *cur1, void *next1,
155  int w, int prefs, int mrefs, int prefs2, int mrefs2,
156  int parity, int clip_max, int spat)
157 {
158  uint8_t *dst = dst1;
159  uint8_t *prev = prev1;
160  uint8_t *cur = cur1;
161  uint8_t *next = next1;
162  uint8_t *prev2 = parity ? prev : cur ;
163  uint8_t *next2 = parity ? cur : next;
164  int interpol, x;
165 
166  FILTER1()
167  FILTER_EDGE()
168  FILTER2()
169 }
170 
171 static void filter_intra_16bit(void *dst1, void *cur1, int w, int prefs, int mrefs,
172  int prefs3, int mrefs3, int parity, int clip_max)
173 {
174  uint16_t *dst = dst1;
175  uint16_t *cur = cur1;
176  int interpol, x;
177 
178  FILTER_INTRA()
179 }
180 
181 static void filter_line_c_16bit(void *dst1, void *prev1, void *cur1, void *next1,
182  int w, int prefs, int mrefs, int prefs2, int mrefs2,
183  int prefs3, int mrefs3, int prefs4, int mrefs4,
184  int parity, int clip_max)
185 {
186  uint16_t *dst = dst1;
187  uint16_t *prev = prev1;
188  uint16_t *cur = cur1;
189  uint16_t *next = next1;
190  uint16_t *prev2 = parity ? prev : cur ;
191  uint16_t *next2 = parity ? cur : next;
192  int interpol, x;
193 
194  FILTER1()
195  FILTER_LINE()
196  FILTER2()
197 }
198 
199 static void filter_edge_16bit(void *dst1, void *prev1, void *cur1, void *next1,
200  int w, int prefs, int mrefs, int prefs2, int mrefs2,
201  int parity, int clip_max, int spat)
202 {
203  uint16_t *dst = dst1;
204  uint16_t *prev = prev1;
205  uint16_t *cur = cur1;
206  uint16_t *next = next1;
207  uint16_t *prev2 = parity ? prev : cur ;
208  uint16_t *next2 = parity ? cur : next;
209  int interpol, x;
210 
211  FILTER1()
212  FILTER_EDGE()
213  FILTER2()
214 }
215 
216 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
217 {
218  BWDIFContext *s = ctx->priv;
219  ThreadData *td = arg;
220  int linesize = s->cur->linesize[td->plane];
221  int clip_max = (1 << (s->csp->comp[td->plane].depth)) - 1;
222  int df = (s->csp->comp[td->plane].depth + 7) / 8;
223  int refs = linesize / df;
224  int slice_start = (td->h * jobnr ) / nb_jobs;
225  int slice_end = (td->h * (jobnr+1)) / nb_jobs;
226  int y;
227 
228  for (y = slice_start; y < slice_end; y++) {
229  if ((y ^ td->parity) & 1) {
230  uint8_t *prev = &s->prev->data[td->plane][y * linesize];
231  uint8_t *cur = &s->cur ->data[td->plane][y * linesize];
232  uint8_t *next = &s->next->data[td->plane][y * linesize];
233  uint8_t *dst = &td->frame->data[td->plane][y * td->frame->linesize[td->plane]];
234  if (!s->inter_field) {
235  s->filter_intra(dst, cur, td->w, (y + df) < td->h ? refs : -refs,
236  y > (df - 1) ? -refs : refs,
237  (y + 3*df) < td->h ? 3 * refs : -refs,
238  y > (3*df - 1) ? -3 * refs : refs,
239  td->parity ^ td->tff, clip_max);
240  } else if ((y < 4) || ((y + 5) > td->h)) {
241  s->filter_edge(dst, prev, cur, next, td->w,
242  (y + df) < td->h ? refs : -refs,
243  y > (df - 1) ? -refs : refs,
244  refs << 1, -(refs << 1),
245  td->parity ^ td->tff, clip_max,
246  (y < 2) || ((y + 3) > td->h) ? 0 : 1);
247  } else {
248  s->filter_line(dst, prev, cur, next, td->w,
249  refs, -refs, refs << 1, -(refs << 1),
250  3 * refs, -3 * refs, refs << 2, -(refs << 2),
251  td->parity ^ td->tff, clip_max);
252  }
253  } else {
254  memcpy(&td->frame->data[td->plane][y * td->frame->linesize[td->plane]],
255  &s->cur->data[td->plane][y * linesize], td->w * df);
256  }
257  }
258  return 0;
259 }
260 
261 static void filter(AVFilterContext *ctx, AVFrame *dstpic,
262  int parity, int tff)
263 {
264  BWDIFContext *bwdif = ctx->priv;
265  ThreadData td = { .frame = dstpic, .parity = parity, .tff = tff };
266  int i;
267 
268  for (i = 0; i < bwdif->csp->nb_components; i++) {
269  int w = dstpic->width;
270  int h = dstpic->height;
271 
272  if (i == 1 || i == 2) {
273  w = AV_CEIL_RSHIFT(w, bwdif->csp->log2_chroma_w);
274  h = AV_CEIL_RSHIFT(h, bwdif->csp->log2_chroma_h);
275  }
276 
277  td.w = w;
278  td.h = h;
279  td.plane = i;
280 
281  ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(h, ctx->graph->nb_threads));
282  }
283  if (!bwdif->inter_field) {
284  bwdif->inter_field = 1;
285  }
286 
287  emms_c();
288 }
289 
290 static int return_frame(AVFilterContext *ctx, int is_second)
291 {
292  BWDIFContext *bwdif = ctx->priv;
293  AVFilterLink *link = ctx->outputs[0];
294  int tff, ret;
295 
296  if (bwdif->parity == -1) {
297  tff = bwdif->cur->interlaced_frame ?
298  bwdif->cur->top_field_first : 1;
299  } else {
300  tff = bwdif->parity ^ 1;
301  }
302 
303  if (is_second) {
304  bwdif->out = ff_get_video_buffer(link, link->w, link->h);
305  if (!bwdif->out)
306  return AVERROR(ENOMEM);
307 
308  av_frame_copy_props(bwdif->out, bwdif->cur);
309  bwdif->out->interlaced_frame = 0;
310  if (bwdif->inter_field < 0)
311  bwdif->inter_field = 0;
312  }
313 
314  filter(ctx, bwdif->out, tff ^ !is_second, tff);
315 
316  if (is_second) {
317  int64_t cur_pts = bwdif->cur->pts;
318  int64_t next_pts = bwdif->next->pts;
319 
320  if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
321  bwdif->out->pts = cur_pts + next_pts;
322  } else {
323  bwdif->out->pts = AV_NOPTS_VALUE;
324  }
325  }
326  ret = ff_filter_frame(ctx->outputs[0], bwdif->out);
327 
328  bwdif->frame_pending = (bwdif->mode&1) && !is_second;
329  return ret;
330 }
331 
332 static int checkstride(BWDIFContext *bwdif, const AVFrame *a, const AVFrame *b)
333 {
334  int i;
335  for (i = 0; i < bwdif->csp->nb_components; i++)
336  if (a->linesize[i] != b->linesize[i])
337  return 1;
338  return 0;
339 }
340 
341 static void fixstride(AVFilterLink *link, AVFrame *f)
342 {
343  AVFrame *dst = ff_default_get_video_buffer(link, f->width, f->height);
344  if(!dst)
345  return;
346  av_frame_copy_props(dst, f);
347  av_image_copy(dst->data, dst->linesize,
348  (const uint8_t **)f->data, f->linesize,
349  dst->format, dst->width, dst->height);
350  av_frame_unref(f);
351  av_frame_move_ref(f, dst);
352  av_frame_free(&dst);
353 }
354 
356 {
357  AVFilterContext *ctx = link->dst;
358  BWDIFContext *bwdif = ctx->priv;
359 
360  av_assert0(frame);
361 
362  if (bwdif->frame_pending)
363  return_frame(ctx, 1);
364 
365  if (bwdif->prev)
366  av_frame_free(&bwdif->prev);
367  bwdif->prev = bwdif->cur;
368  bwdif->cur = bwdif->next;
369  bwdif->next = frame;
370 
371  if (!bwdif->cur) {
372  bwdif->cur = av_frame_clone(bwdif->next);
373  if (!bwdif->cur)
374  return AVERROR(ENOMEM);
375  bwdif->inter_field = 0;
376  }
377 
378  if (checkstride(bwdif, bwdif->next, bwdif->cur)) {
379  av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n");
380  fixstride(link, bwdif->next);
381  }
382  if (checkstride(bwdif, bwdif->next, bwdif->cur))
383  fixstride(link, bwdif->cur);
384  if (bwdif->prev && checkstride(bwdif, bwdif->next, bwdif->prev))
385  fixstride(link, bwdif->prev);
386  if (checkstride(bwdif, bwdif->next, bwdif->cur) || (bwdif->prev && checkstride(bwdif, bwdif->next, bwdif->prev))) {
387  av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n");
388  return -1;
389  }
390 
391  if (!bwdif->prev)
392  return 0;
393 
394  if ((bwdif->deint && !bwdif->cur->interlaced_frame) ||
395  ctx->is_disabled ||
396  (bwdif->deint && !bwdif->prev->interlaced_frame && bwdif->prev->repeat_pict) ||
397  (bwdif->deint && !bwdif->next->interlaced_frame && bwdif->next->repeat_pict)
398  ) {
399  bwdif->out = av_frame_clone(bwdif->cur);
400  if (!bwdif->out)
401  return AVERROR(ENOMEM);
402 
403  av_frame_free(&bwdif->prev);
404  if (bwdif->out->pts != AV_NOPTS_VALUE)
405  bwdif->out->pts *= 2;
406  return ff_filter_frame(ctx->outputs[0], bwdif->out);
407  }
408 
409  bwdif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h);
410  if (!bwdif->out)
411  return AVERROR(ENOMEM);
412 
413  av_frame_copy_props(bwdif->out, bwdif->cur);
414  bwdif->out->interlaced_frame = 0;
415 
416  if (bwdif->out->pts != AV_NOPTS_VALUE)
417  bwdif->out->pts *= 2;
418 
419  return return_frame(ctx, 0);
420 }
421 
422 static int request_frame(AVFilterLink *link)
423 {
424  AVFilterContext *ctx = link->src;
425  BWDIFContext *bwdif = ctx->priv;
426  int ret;
427 
428  if (bwdif->frame_pending) {
429  return_frame(ctx, 1);
430  return 0;
431  }
432 
433  if (bwdif->eof)
434  return AVERROR_EOF;
435 
436  ret = ff_request_frame(link->src->inputs[0]);
437 
438  if (ret == AVERROR_EOF && bwdif->cur) {
439  AVFrame *next = av_frame_clone(bwdif->next);
440 
441  if (!next)
442  return AVERROR(ENOMEM);
443 
444  bwdif->inter_field = -1;
445  next->pts = bwdif->next->pts * 2 - bwdif->cur->pts;
446 
447  filter_frame(link->src->inputs[0], next);
448  bwdif->eof = 1;
449  } else if (ret < 0) {
450  return ret;
451  }
452 
453  return 0;
454 }
455 
457 {
458  BWDIFContext *bwdif = ctx->priv;
459 
460  av_frame_free(&bwdif->prev);
461  av_frame_free(&bwdif->cur );
462  av_frame_free(&bwdif->next);
463 }
464 
466 {
467  static const enum AVPixelFormat pix_fmts[] = {
486  };
487 
488  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
489  if (!fmts_list)
490  return AVERROR(ENOMEM);
491 
492  return ff_set_common_formats(ctx, fmts_list);
493 }
494 
495 static int config_props(AVFilterLink *link)
496 {
497  AVFilterContext *ctx = link->src;
498  BWDIFContext *s = link->src->priv;
499 
500  link->time_base.num = link->src->inputs[0]->time_base.num;
501  link->time_base.den = link->src->inputs[0]->time_base.den * 2;
502  link->w = link->src->inputs[0]->w;
503  link->h = link->src->inputs[0]->h;
504 
505  if(s->mode&1)
506  link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1});
507 
508  if (link->w < 3 || link->h < 3) {
509  av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
510  return AVERROR(EINVAL);
511  }
512 
513  s->csp = av_pix_fmt_desc_get(link->format);
514  if (s->csp->comp[0].depth > 8) {
515  s->filter_intra = filter_intra_16bit;
516  s->filter_line = filter_line_c_16bit;
517  s->filter_edge = filter_edge_16bit;
518  } else {
519  s->filter_intra = filter_intra;
520  s->filter_line = filter_line_c;
521  s->filter_edge = filter_edge;
522  }
523 
524  if (ARCH_X86)
526 
527  return 0;
528 }
529 
530 
531 #define OFFSET(x) offsetof(BWDIFContext, x)
532 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
533 
534 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit }
535 
536 static const AVOption bwdif_options[] = {
537  { "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=BWDIF_MODE_SEND_FIELD}, 0, 1, FLAGS, "mode"},
538  CONST("send_frame", "send one frame for each frame", BWDIF_MODE_SEND_FRAME, "mode"),
539  CONST("send_field", "send one frame for each field", BWDIF_MODE_SEND_FIELD, "mode"),
540 
541  { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=BWDIF_PARITY_AUTO}, -1, 1, FLAGS, "parity" },
542  CONST("tff", "assume top field first", BWDIF_PARITY_TFF, "parity"),
543  CONST("bff", "assume bottom field first", BWDIF_PARITY_BFF, "parity"),
544  CONST("auto", "auto detect parity", BWDIF_PARITY_AUTO, "parity"),
545 
546  { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=BWDIF_DEINT_ALL}, 0, 1, FLAGS, "deint" },
547  CONST("all", "deinterlace all frames", BWDIF_DEINT_ALL, "deint"),
548  CONST("interlaced", "only deinterlace frames marked as interlaced", BWDIF_DEINT_INTERLACED, "deint"),
549 
550  { NULL }
551 };
552 
553 AVFILTER_DEFINE_CLASS(bwdif);
554 
556  {
557  .name = "default",
558  .type = AVMEDIA_TYPE_VIDEO,
559  .filter_frame = filter_frame,
560  },
561  { NULL }
562 };
563 
565  {
566  .name = "default",
567  .type = AVMEDIA_TYPE_VIDEO,
568  .request_frame = request_frame,
569  .config_props = config_props,
570  },
571  { NULL }
572 };
573 
575  .name = "bwdif",
576  .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."),
577  .priv_size = sizeof(BWDIFContext),
578  .priv_class = &bwdif_class,
579  .uninit = uninit,
581  .inputs = avfilter_vf_bwdif_inputs,
582  .outputs = avfilter_vf_bwdif_outputs,
584 };
static const uint16_t coef_sp[2]
Definition: vf_bwdif.c:50
send 1 frame for each frame
Definition: bwdif.h:26
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:378
const char * s
Definition: avisynth_c.h:631
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_bwdif.c:456
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:372
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2222
static const uint16_t coef_lf[2]
Definition: vf_bwdif.c:48
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
AVOption.
Definition: opt.h:245
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:374
#define CONST(name, help, val, unit)
Definition: vf_bwdif.c:534
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:351
AVFrame * prev
Definition: bwdif.h:52
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:375
int tff
Definition: vf_bwdif.c:57
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
int parity
BWDIFParity.
Definition: bwdif.h:45
AVFrame * frame
Definition: vf_bwdif.c:53
Main libavfilter public API header.
void(* filter_edge)(void *dst, void *prev, void *cur, void *next, int w, int prefs, int mrefs, int prefs2, int mrefs2, int parity, int clip_max, int spat)
Definition: bwdif.h:61
void ff_bwdif_init_x86(BWDIFContext *bwdif)
Definition: vf_bwdif_init.c:54
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int num
numerator
Definition: rational.h:44
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:109
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:357
static int interpol(MBContext *s, uint32_t *color, int x, int y, int linesize)
top field first
Definition: bwdif.h:31
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:345
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:508
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
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_bwdif.c:216
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:361
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
struct AVFilterGraph * graph
filtergraph this filter belongs to
Definition: avfilter.h:322
const char * name
Pad name.
Definition: internal.h:59
int inter_field
Definition: bwdif.h:66
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:313
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1180
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
mode
Definition: f_perms.c:27
AVOptions.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:268
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:371
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:356
static AVFrame * frame
int plane
Definition: vf_blend.c:57
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:804
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#define AVERROR_EOF
End of file.
Definition: error.h:55
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:354
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:318
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:346
static void filter(AVFilterContext *ctx, AVFrame *dstpic, int parity, int tff)
Definition: vf_bwdif.c:261
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:377
static int filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: vf_bwdif.c:355
#define av_log(a,...)
static int request_frame(AVFilterLink *link)
Definition: vf_bwdif.c:422
A filter pad used for either input or output.
Definition: internal.h:53
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:187
int width
width and height of the video frame
Definition: frame.h:236
#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
#define td
Definition: regdef.h:70
deinterlace all frames
Definition: bwdif.h:37
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static void filter_line_c(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int prefs2, int mrefs2, int prefs3, int mrefs3, int prefs4, int mrefs4, int parity, int clip_max)
Definition: vf_bwdif.c:136
#define FILTER_LINE()
Definition: vf_bwdif.c:92
#define AVERROR(e)
Definition: error.h:43
static int return_frame(AVFilterContext *ctx, int is_second)
Definition: vf_bwdif.c:290
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:153
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
void * priv
private data for use by the filter
Definition: avfilter.h:320
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:114
int parity
Definition: vf_bwdif.c:56
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:379
#define FILTER2()
Definition: vf_bwdif.c:109
const char * arg
Definition: jacosubdec.c:66
AVFrame * next
Definition: bwdif.h:51
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:344
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
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:363
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:339
AVFilter ff_vf_bwdif
Definition: vf_bwdif.c:574
static void filter_intra_16bit(void *dst1, void *cur1, int w, int prefs, int mrefs, int prefs3, int mrefs3, int parity, int clip_max)
Definition: vf_bwdif.c:171
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:360
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:325
#define FFMIN(a, b)
Definition: common.h:96
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 frame_pending
Definition: bwdif.h:48
void(* filter_intra)(void *dst1, void *cur1, int w, int prefs, int mrefs, int prefs3, int mrefs3, int parity, int clip_max)
Definition: bwdif.h:55
bottom field first
Definition: bwdif.h:32
AVFormatContext * ctx
Definition: movenc.c:48
AVFILTER_DEFINE_CLASS(bwdif)
static const uint16_t coef_hf[3]
Definition: vf_bwdif.c:49
#define FILTER_EDGE()
Definition: vf_bwdif.c:103
mcdeint parity
Definition: vf_mcdeint.c:277
#define FILTER1()
Definition: vf_bwdif.c:69
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:376
void(* filter_line)(void *dst, void *prev, void *cur, void *next, int w, int prefs, int mrefs, int prefs2, int mrefs2, int prefs3, int mrefs3, int prefs4, int mrefs4, int parity, int clip_max)
Definition: bwdif.h:57
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:340
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:359
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:471
int deint
BWDIFDeint.
Definition: bwdif.h:46
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:352
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:248
#define FILTER_INTRA()
Definition: vf_bwdif.c:60
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
int eof
Definition: bwdif.h:67
const AVPixFmtDescriptor * csp
Definition: bwdif.h:65
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:349
#define OFFSET(x)
Definition: vf_bwdif.c:531
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
static int config_props(AVFilterLink *link)
Definition: vf_bwdif.c:495
AVFrame * out
Definition: bwdif.h:53
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:188
only deinterlace frames marked as interlaced
Definition: bwdif.h:38
static int checkstride(BWDIFContext *bwdif, const AVFrame *a, const AVFrame *b)
Definition: vf_bwdif.c:332
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:341
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
Filter definition.
Definition: avfilter.h:142
rational number numerator/denominator
Definition: rational.h:43
static void filter_edge(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int prefs2, int mrefs2, int parity, int clip_max, int spat)
Definition: vf_bwdif.c:154
const char * name
Filter name.
Definition: avfilter.h:146
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:338
static const AVFilterPad avfilter_vf_bwdif_inputs[]
Definition: vf_bwdif.c:555
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:131
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:317
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
static void filter_line_c_16bit(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int prefs2, int mrefs2, int prefs3, int mrefs3, int prefs4, int mrefs4, int parity, int clip_max)
Definition: vf_bwdif.c:181
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:358
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:484
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:345
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:342
static int flags
Definition: cpu.c:47
static const AVOption bwdif_options[]
Definition: vf_bwdif.c:536
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:348
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:43
#define FLAGS
Definition: vf_bwdif.c:532
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
common internal and external API header
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:228
static int query_formats(AVFilterContext *ctx)
Definition: vf_bwdif.c:465
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:373
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 den
denominator
Definition: rational.h:45
avfilter_execute_func * execute
Definition: internal.h:153
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2051
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:323
auto detection
Definition: bwdif.h:33
static void filter_intra(void *dst1, void *cur1, int w, int prefs, int mrefs, int prefs3, int mrefs3, int parity, int clip_max)
Definition: vf_bwdif.c:126
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:305
int height
Definition: frame.h:236
static void fixstride(AVFilterLink *link, AVFrame *f)
Definition: vf_bwdif.c:341
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
static const AVFilterPad avfilter_vf_bwdif_outputs[]
Definition: vf_bwdif.c:564
send 1 frame for each field
Definition: bwdif.h:27
#define df(A, B)
Definition: vf_xbr.c:86
AVFrame * cur
Definition: bwdif.h:50
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:369
int mode
BWDIFMode.
Definition: bwdif.h:44
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:353
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:580
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:240
static void filter_edge_16bit(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int prefs2, int mrefs2, int parity, int clip_max, int spat)
Definition: vf_bwdif.c:199
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58