FFmpeg
vf_w3fdif.c
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1 /*
2  * Copyright (C) 2012 British Broadcasting Corporation, All Rights Reserved
3  * Author of de-interlace algorithm: Jim Easterbrook for BBC R&D
4  * Based on the process described by Martin Weston for BBC R&D
5  * Author of FFmpeg filter: Mark Himsley for BBC Broadcast Systems Development
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 #include "libavutil/common.h"
25 #include "libavutil/imgutils.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "avfilter.h"
29 #include "formats.h"
30 #include "internal.h"
31 #include "video.h"
32 #include "w3fdif.h"
33 
34 typedef struct W3FDIFContext {
35  const AVClass *class;
36  int filter; ///< 0 is simple, 1 is more complex
37  int deint; ///< which frames to deinterlace
38  int linesize[4]; ///< bytes of pixel data per line for each plane
39  int planeheight[4]; ///< height of each plane
40  int field; ///< which field are we on, 0 or 1
41  int eof;
42  int nb_planes;
43  AVFrame *prev, *cur, *next; ///< previous, current, next frames
44  int32_t **work_line; ///< lines we are calculating
46  int max;
47 
50 
51 #define OFFSET(x) offsetof(W3FDIFContext, x)
52 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
53 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
54 
55 static const AVOption w3fdif_options[] = {
56  { "filter", "specify the filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "filter" },
57  CONST("simple", NULL, 0, "filter"),
58  CONST("complex", NULL, 1, "filter"),
59  { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "deint" },
60  CONST("all", "deinterlace all frames", 0, "deint"),
61  CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
62  { NULL }
63 };
64 
65 AVFILTER_DEFINE_CLASS(w3fdif);
66 
68 {
69  static const enum AVPixelFormat pix_fmts[] = {
85  };
86 
87  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
88  if (!fmts_list)
89  return AVERROR(ENOMEM);
90  return ff_set_common_formats(ctx, fmts_list);
91 }
92 
94  uint8_t *in_lines_cur[2],
95  const int16_t *coef, int linesize)
96 {
97  int i;
98 
99  for (i = 0; i < linesize; i++) {
100  *work_line = *in_lines_cur[0]++ * coef[0];
101  *work_line++ += *in_lines_cur[1]++ * coef[1];
102  }
103 }
104 
106  uint8_t *in_lines_cur[4],
107  const int16_t *coef, int linesize)
108 {
109  int i;
110 
111  for (i = 0; i < linesize; i++) {
112  *work_line = *in_lines_cur[0]++ * coef[0];
113  *work_line += *in_lines_cur[1]++ * coef[1];
114  *work_line += *in_lines_cur[2]++ * coef[2];
115  *work_line++ += *in_lines_cur[3]++ * coef[3];
116  }
117 }
118 
120  uint8_t *in_lines_cur[3],
121  uint8_t *in_lines_adj[3],
122  const int16_t *coef, int linesize)
123 {
124  int i;
125 
126  for (i = 0; i < linesize; i++) {
127  *work_line += *in_lines_cur[0]++ * coef[0];
128  *work_line += *in_lines_adj[0]++ * coef[0];
129  *work_line += *in_lines_cur[1]++ * coef[1];
130  *work_line += *in_lines_adj[1]++ * coef[1];
131  *work_line += *in_lines_cur[2]++ * coef[2];
132  *work_line++ += *in_lines_adj[2]++ * coef[2];
133  }
134 }
135 
137  uint8_t *in_lines_cur[5],
138  uint8_t *in_lines_adj[5],
139  const int16_t *coef, int linesize)
140 {
141  int i;
142 
143  for (i = 0; i < linesize; i++) {
144  *work_line += *in_lines_cur[0]++ * coef[0];
145  *work_line += *in_lines_adj[0]++ * coef[0];
146  *work_line += *in_lines_cur[1]++ * coef[1];
147  *work_line += *in_lines_adj[1]++ * coef[1];
148  *work_line += *in_lines_cur[2]++ * coef[2];
149  *work_line += *in_lines_adj[2]++ * coef[2];
150  *work_line += *in_lines_cur[3]++ * coef[3];
151  *work_line += *in_lines_adj[3]++ * coef[3];
152  *work_line += *in_lines_cur[4]++ * coef[4];
153  *work_line++ += *in_lines_adj[4]++ * coef[4];
154  }
155 }
156 
157 static void filter_scale(uint8_t *out_pixel, const int32_t *work_pixel, int linesize, int max)
158 {
159  int j;
160 
161  for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
162  *out_pixel = av_clip(*work_pixel, 0, 255 * 256 * 128) >> 15;
163 }
164 
166  uint8_t *in_lines_cur8[2],
167  const int16_t *coef, int linesize)
168 {
169  uint16_t *in_lines_cur[2] = { (uint16_t *)in_lines_cur8[0], (uint16_t *)in_lines_cur8[1] };
170  int i;
171 
172  linesize /= 2;
173  for (i = 0; i < linesize; i++) {
174  *work_line = *in_lines_cur[0]++ * coef[0];
175  *work_line++ += *in_lines_cur[1]++ * coef[1];
176  }
177 }
178 
180  uint8_t *in_lines_cur8[4],
181  const int16_t *coef, int linesize)
182 {
183  uint16_t *in_lines_cur[4] = { (uint16_t *)in_lines_cur8[0],
184  (uint16_t *)in_lines_cur8[1],
185  (uint16_t *)in_lines_cur8[2],
186  (uint16_t *)in_lines_cur8[3] };
187  int i;
188 
189  linesize /= 2;
190  for (i = 0; i < linesize; i++) {
191  *work_line = *in_lines_cur[0]++ * coef[0];
192  *work_line += *in_lines_cur[1]++ * coef[1];
193  *work_line += *in_lines_cur[2]++ * coef[2];
194  *work_line++ += *in_lines_cur[3]++ * coef[3];
195  }
196 }
197 
199  uint8_t *in_lines_cur8[3],
200  uint8_t *in_lines_adj8[3],
201  const int16_t *coef, int linesize)
202 {
203  uint16_t *in_lines_cur[3] = { (uint16_t *)in_lines_cur8[0],
204  (uint16_t *)in_lines_cur8[1],
205  (uint16_t *)in_lines_cur8[2] };
206  uint16_t *in_lines_adj[3] = { (uint16_t *)in_lines_adj8[0],
207  (uint16_t *)in_lines_adj8[1],
208  (uint16_t *)in_lines_adj8[2] };
209  int i;
210 
211  linesize /= 2;
212  for (i = 0; i < linesize; i++) {
213  *work_line += *in_lines_cur[0]++ * coef[0];
214  *work_line += *in_lines_adj[0]++ * coef[0];
215  *work_line += *in_lines_cur[1]++ * coef[1];
216  *work_line += *in_lines_adj[1]++ * coef[1];
217  *work_line += *in_lines_cur[2]++ * coef[2];
218  *work_line++ += *in_lines_adj[2]++ * coef[2];
219  }
220 }
221 
223  uint8_t *in_lines_cur8[5],
224  uint8_t *in_lines_adj8[5],
225  const int16_t *coef, int linesize)
226 {
227  uint16_t *in_lines_cur[5] = { (uint16_t *)in_lines_cur8[0],
228  (uint16_t *)in_lines_cur8[1],
229  (uint16_t *)in_lines_cur8[2],
230  (uint16_t *)in_lines_cur8[3],
231  (uint16_t *)in_lines_cur8[4] };
232  uint16_t *in_lines_adj[5] = { (uint16_t *)in_lines_adj8[0],
233  (uint16_t *)in_lines_adj8[1],
234  (uint16_t *)in_lines_adj8[2],
235  (uint16_t *)in_lines_adj8[3],
236  (uint16_t *)in_lines_adj8[4] };
237  int i;
238 
239  linesize /= 2;
240  for (i = 0; i < linesize; i++) {
241  *work_line += *in_lines_cur[0]++ * coef[0];
242  *work_line += *in_lines_adj[0]++ * coef[0];
243  *work_line += *in_lines_cur[1]++ * coef[1];
244  *work_line += *in_lines_adj[1]++ * coef[1];
245  *work_line += *in_lines_cur[2]++ * coef[2];
246  *work_line += *in_lines_adj[2]++ * coef[2];
247  *work_line += *in_lines_cur[3]++ * coef[3];
248  *work_line += *in_lines_adj[3]++ * coef[3];
249  *work_line += *in_lines_cur[4]++ * coef[4];
250  *work_line++ += *in_lines_adj[4]++ * coef[4];
251  }
252 }
253 
254 static void filter16_scale(uint8_t *out_pixel8, const int32_t *work_pixel, int linesize, int max)
255 {
256  uint16_t *out_pixel = (uint16_t *)out_pixel8;
257  int j;
258 
259  linesize /= 2;
260  for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
261  *out_pixel = av_clip(*work_pixel, 0, max) >> 15;
262 }
263 
265 {
266  AVFilterContext *ctx = inlink->dst;
267  W3FDIFContext *s = ctx->priv;
269  int ret, i, depth;
270 
271  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
272  return ret;
273 
274  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
275  s->planeheight[0] = s->planeheight[3] = inlink->h;
276 
279  s->work_line = av_calloc(s->nb_threads, sizeof(*s->work_line));
280  if (!s->work_line)
281  return AVERROR(ENOMEM);
282 
283  for (i = 0; i < s->nb_threads; i++) {
284  s->work_line[i] = av_calloc(FFALIGN(s->linesize[0], 32), sizeof(*s->work_line[0]));
285  if (!s->work_line[i])
286  return AVERROR(ENOMEM);
287  }
288 
289  depth = desc->comp[0].depth;
290  s->max = ((1 << depth) - 1) * 256 * 128;
291  if (depth <= 8) {
297  } else {
303  }
304 
305  if (ARCH_X86)
306  ff_w3fdif_init_x86(&s->dsp, depth);
307 
308  return 0;
309 }
310 
311 static int config_output(AVFilterLink *outlink)
312 {
313  AVFilterLink *inlink = outlink->src->inputs[0];
314 
315  outlink->time_base.num = inlink->time_base.num;
316  outlink->time_base.den = inlink->time_base.den * 2;
317  outlink->frame_rate.num = inlink->frame_rate.num * 2;
318  outlink->frame_rate.den = inlink->frame_rate.den;
319 
320  return 0;
321 }
322 
323 /*
324  * Filter coefficients from PH-2071, scaled by 256 * 128.
325  * Each set of coefficients has a set for low-frequencies and high-frequencies.
326  * n_coef_lf[] and n_coef_hf[] are the number of coefs for simple and more-complex.
327  * It is important for later that n_coef_lf[] is even and n_coef_hf[] is odd.
328  * coef_lf[][] and coef_hf[][] are the coefficients for low-frequencies
329  * and high-frequencies for simple and more-complex mode.
330  */
331 static const int8_t n_coef_lf[2] = { 2, 4 };
332 static const int16_t coef_lf[2][4] = {{ 16384, 16384, 0, 0},
333  { -852, 17236, 17236, -852}};
334 static const int8_t n_coef_hf[2] = { 3, 5 };
335 static const int16_t coef_hf[2][5] = {{ -2048, 4096, -2048, 0, 0},
336  { 1016, -3801, 5570, -3801, 1016}};
337 
338 typedef struct ThreadData {
339  AVFrame *out, *cur, *adj;
340  int plane;
341 } ThreadData;
342 
343 static int deinterlace_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
344 {
345  W3FDIFContext *s = ctx->priv;
346  ThreadData *td = arg;
347  AVFrame *out = td->out;
348  AVFrame *cur = td->cur;
349  AVFrame *adj = td->adj;
350  const int plane = td->plane;
351  const int filter = s->filter;
352  uint8_t *in_line, *in_lines_cur[5], *in_lines_adj[5];
353  uint8_t *out_line, *out_pixel;
354  int32_t *work_line, *work_pixel;
355  uint8_t *cur_data = cur->data[plane];
356  uint8_t *adj_data = adj->data[plane];
357  uint8_t *dst_data = out->data[plane];
358  const int linesize = s->linesize[plane];
359  const int height = s->planeheight[plane];
360  const int cur_line_stride = cur->linesize[plane];
361  const int adj_line_stride = adj->linesize[plane];
362  const int dst_line_stride = out->linesize[plane];
363  const int start = (height * jobnr) / nb_jobs;
364  const int end = (height * (jobnr+1)) / nb_jobs;
365  const int max = s->max;
366  int j, y_in, y_out;
367 
368  /* copy unchanged the lines of the field */
369  y_out = start + ((s->field == cur->top_field_first) ^ (start & 1));
370 
371  in_line = cur_data + (y_out * cur_line_stride);
372  out_line = dst_data + (y_out * dst_line_stride);
373 
374  while (y_out < end) {
375  memcpy(out_line, in_line, linesize);
376  y_out += 2;
377  in_line += cur_line_stride * 2;
378  out_line += dst_line_stride * 2;
379  }
380 
381  /* interpolate other lines of the field */
382  y_out = start + ((s->field != cur->top_field_first) ^ (start & 1));
383 
384  out_line = dst_data + (y_out * dst_line_stride);
385 
386  while (y_out < end) {
387  /* get low vertical frequencies from current field */
388  for (j = 0; j < n_coef_lf[filter]; j++) {
389  y_in = (y_out + 1) + (j * 2) - n_coef_lf[filter];
390 
391  while (y_in < 0)
392  y_in += 2;
393  while (y_in >= height)
394  y_in -= 2;
395 
396  in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
397  }
398 
399  work_line = s->work_line[jobnr];
400  switch (n_coef_lf[filter]) {
401  case 2:
402  s->dsp.filter_simple_low(work_line, in_lines_cur,
403  coef_lf[filter], linesize);
404  break;
405  case 4:
406  s->dsp.filter_complex_low(work_line, in_lines_cur,
407  coef_lf[filter], linesize);
408  }
409 
410  /* get high vertical frequencies from adjacent fields */
411  for (j = 0; j < n_coef_hf[filter]; j++) {
412  y_in = (y_out + 1) + (j * 2) - n_coef_hf[filter];
413 
414  while (y_in < 0)
415  y_in += 2;
416  while (y_in >= height)
417  y_in -= 2;
418 
419  in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
420  in_lines_adj[j] = adj_data + (y_in * adj_line_stride);
421  }
422 
423  work_line = s->work_line[jobnr];
424  switch (n_coef_hf[filter]) {
425  case 3:
426  s->dsp.filter_simple_high(work_line, in_lines_cur, in_lines_adj,
427  coef_hf[filter], linesize);
428  break;
429  case 5:
430  s->dsp.filter_complex_high(work_line, in_lines_cur, in_lines_adj,
431  coef_hf[filter], linesize);
432  }
433 
434  /* save scaled result to the output frame, scaling down by 256 * 128 */
435  work_pixel = s->work_line[jobnr];
436  out_pixel = out_line;
437 
438  s->dsp.filter_scale(out_pixel, work_pixel, linesize, max);
439 
440  /* move on to next line */
441  y_out += 2;
442  out_line += dst_line_stride * 2;
443  }
444 
445  return 0;
446 }
447 
448 static int filter(AVFilterContext *ctx, int is_second)
449 {
450  W3FDIFContext *s = ctx->priv;
451  AVFilterLink *outlink = ctx->outputs[0];
452  AVFrame *out, *adj;
453  ThreadData td;
454  int plane;
455 
456  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
457  if (!out)
458  return AVERROR(ENOMEM);
459  av_frame_copy_props(out, s->cur);
460  out->interlaced_frame = 0;
461 
462  if (!is_second) {
463  if (out->pts != AV_NOPTS_VALUE)
464  out->pts *= 2;
465  } else {
466  int64_t cur_pts = s->cur->pts;
467  int64_t next_pts = s->next->pts;
468 
469  if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
470  out->pts = cur_pts + next_pts;
471  } else {
472  out->pts = AV_NOPTS_VALUE;
473  }
474  }
475 
476  adj = s->field ? s->next : s->prev;
477  td.out = out; td.cur = s->cur; td.adj = adj;
478  for (plane = 0; plane < s->nb_planes; plane++) {
479  td.plane = plane;
480  ctx->internal->execute(ctx, deinterlace_slice, &td, NULL, FFMIN(s->planeheight[plane], s->nb_threads));
481  }
482 
483  s->field = !s->field;
484 
485  return ff_filter_frame(outlink, out);
486 }
487 
489 {
490  AVFilterContext *ctx = inlink->dst;
491  W3FDIFContext *s = ctx->priv;
492  int ret;
493 
494  av_frame_free(&s->prev);
495  s->prev = s->cur;
496  s->cur = s->next;
497  s->next = frame;
498 
499  if (!s->cur) {
500  s->cur = av_frame_clone(s->next);
501  if (!s->cur)
502  return AVERROR(ENOMEM);
503  }
504 
505  if ((s->deint && !s->cur->interlaced_frame) || ctx->is_disabled) {
506  AVFrame *out = av_frame_clone(s->cur);
507  if (!out)
508  return AVERROR(ENOMEM);
509 
510  av_frame_free(&s->prev);
511  if (out->pts != AV_NOPTS_VALUE)
512  out->pts *= 2;
513  return ff_filter_frame(ctx->outputs[0], out);
514  }
515 
516  if (!s->prev)
517  return 0;
518 
519  ret = filter(ctx, 0);
520  if (ret < 0)
521  return ret;
522 
523  return filter(ctx, 1);
524 }
525 
526 static int request_frame(AVFilterLink *outlink)
527 {
528  AVFilterContext *ctx = outlink->src;
529  W3FDIFContext *s = ctx->priv;
530  int ret;
531 
532  if (s->eof)
533  return AVERROR_EOF;
534 
535  ret = ff_request_frame(ctx->inputs[0]);
536 
537  if (ret == AVERROR_EOF && s->cur) {
539  if (!next)
540  return AVERROR(ENOMEM);
541  next->pts = s->next->pts * 2 - s->cur->pts;
542  filter_frame(ctx->inputs[0], next);
543  s->eof = 1;
544  } else if (ret < 0) {
545  return ret;
546  }
547 
548  return 0;
549 }
550 
552 {
553  W3FDIFContext *s = ctx->priv;
554  int i;
555 
556  av_frame_free(&s->prev);
557  av_frame_free(&s->cur );
558  av_frame_free(&s->next);
559 
560  for (i = 0; i < s->nb_threads; i++)
561  av_freep(&s->work_line[i]);
562 
563  av_freep(&s->work_line);
564 }
565 
566 static const AVFilterPad w3fdif_inputs[] = {
567  {
568  .name = "default",
569  .type = AVMEDIA_TYPE_VIDEO,
570  .filter_frame = filter_frame,
571  .config_props = config_input,
572  },
573  { NULL }
574 };
575 
576 static const AVFilterPad w3fdif_outputs[] = {
577  {
578  .name = "default",
579  .type = AVMEDIA_TYPE_VIDEO,
580  .config_props = config_output,
581  .request_frame = request_frame,
582  },
583  { NULL }
584 };
585 
587  .name = "w3fdif",
588  .description = NULL_IF_CONFIG_SMALL("Apply Martin Weston three field deinterlace."),
589  .priv_size = sizeof(W3FDIFContext),
590  .priv_class = &w3fdif_class,
591  .uninit = uninit,
593  .inputs = w3fdif_inputs,
594  .outputs = w3fdif_outputs,
596 };
int plane
Definition: avisynth_c.h:384
#define NULL
Definition: coverity.c:32
AVFrame * out
Definition: af_adeclick.c:488
AVFrame * prev
Definition: vf_w3fdif.c:43
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:268
AVOption.
Definition: opt.h:246
AVFrame * cur
Definition: vf_w3fdif.c:43
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:397
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2562
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:68
static void filter16_scale(uint8_t *out_pixel8, const int32_t *work_pixel, int linesize, int max)
Definition: vf_w3fdif.c:254
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:385
static void filter_complex_low(int32_t *work_line, uint8_t *in_lines_cur[4], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:105
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:244
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
const char * name
Pad name.
Definition: internal.h:60
static const AVOption w3fdif_options[]
Definition: vf_w3fdif.c:55
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
static int config_input(AVFilterLink *inlink)
Definition: vf_w3fdif.c:264
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
#define FLAGS
Definition: vf_w3fdif.c:52
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
AVFILTER_DEFINE_CLASS(w3fdif)
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:361
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:402
#define height
static void filter16_complex_high(int32_t *work_line, uint8_t *in_lines_cur8[5], uint8_t *in_lines_adj8[5], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:222
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:100
void(* filter_complex_low)(int32_t *work_line, uint8_t *in_lines_cur[4], const int16_t *coef, int linesize)
Definition: w3fdif.h:31
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
static void filter_complex_high(int32_t *work_line, uint8_t *in_lines_cur[5], uint8_t *in_lines_adj[5], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:136
#define AVERROR_EOF
End of file.
Definition: error.h:55
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:415
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
#define FFALIGN(x, a)
Definition: macros.h:48
void(* filter_simple_high)(int32_t *work_line, uint8_t *in_lines_cur[3], uint8_t *in_lines_adj[3], const int16_t *coef, int linesize)
Definition: w3fdif.h:34
A filter pad used for either input or output.
Definition: internal.h:54
int linesize[4]
bytes of pixel data per line for each plane
Definition: vf_w3fdif.c:38
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
AVFrame * next
previous, current, next frames
Definition: vf_w3fdif.c:43
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:260
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
static int query_formats(AVFilterContext *ctx)
Definition: vf_w3fdif.c:67
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static const int16_t coef_hf[2][5]
Definition: vf_w3fdif.c:335
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
#define OFFSET(x)
Definition: vf_w3fdif.c:51
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
int planeheight[4]
height of each plane
Definition: vf_w3fdif.c:39
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:385
static void filter16_complex_low(int32_t *work_line, uint8_t *in_lines_cur8[4], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:179
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
#define FFMIN(a, b)
Definition: common.h:96
int field
which field are we on, 0 or 1
Definition: vf_w3fdif.c:40
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
static const int16_t coef_lf[2][4]
Definition: vf_w3fdif.c:332
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
void(* filter_scale)(uint8_t *out_pixel, const int32_t *work_pixel, int linesize, int max)
Definition: w3fdif.h:42
#define s(width, name)
Definition: cbs_vp9.c:257
static const int8_t n_coef_hf[2]
Definition: vf_w3fdif.c:334
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:405
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
AVFilter ff_vf_w3fdif
Definition: vf_w3fdif.c:586
static int config_output(AVFilterLink *outlink)
Definition: vf_w3fdif.c:311
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:395
Used for passing data between threads.
Definition: af_adeclick.c:487
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:299
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVFrame * adj
Definition: vf_w3fdif.c:339
static const int8_t n_coef_lf[2]
Definition: vf_w3fdif.c:331
AVFrame * cur
Definition: vf_w3fdif.c:339
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
Definition: imgutils.c:89
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
static void filter16_simple_high(int32_t *work_line, uint8_t *in_lines_cur8[3], uint8_t *in_lines_adj8[3], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:198
#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:133
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:396
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:282
#define CONST(name, help, val, unit)
Definition: vf_w3fdif.c:53
static const AVFilterPad w3fdif_inputs[]
Definition: vf_w3fdif.c:566
void(* filter_simple_low)(int32_t *work_line, uint8_t *in_lines_cur[2], const int16_t *coef, int linesize)
Definition: w3fdif.h:28
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
W3FDIFDSPContext dsp
Definition: vf_w3fdif.c:48
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
common internal and external API header
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
Definition: vf_w3fdif.c:488
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
int deint
which frames to deinterlace
Definition: vf_w3fdif.c:37
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
static int deinterlace_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_w3fdif.c:343
void(* filter_complex_high)(int32_t *work_line, uint8_t *in_lines_cur[5], uint8_t *in_lines_adj[5], const int16_t *coef, int linesize)
Definition: w3fdif.h:38
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
int den
Denominator.
Definition: rational.h:60
avfilter_execute_func * execute
Definition: internal.h:155
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:420
static const AVFilterPad w3fdif_outputs[]
Definition: vf_w3fdif.c:576
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:258
An instance of a filter.
Definition: avfilter.h:338
static void filter16_simple_low(int32_t *work_line, uint8_t *in_lines_cur8[2], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:165
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_w3fdif.c:551
FILE * out
Definition: movenc.c:54
void ff_w3fdif_init_x86(W3FDIFDSPContext *dsp, int depth)
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
void INT64 start
Definition: avisynth_c.h:766
static void filter_scale(uint8_t *out_pixel, const int32_t *work_pixel, int linesize, int max)
Definition: vf_w3fdif.c:157
static void filter_simple_low(int32_t *work_line, uint8_t *in_lines_cur[2], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:93
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:407
int32_t ** work_line
lines we are calculating
Definition: vf_w3fdif.c:44
static int request_frame(AVFilterLink *outlink)
Definition: vf_w3fdif.c:526
internal API functions
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
int nb_threads
Definition: vf_w3fdif.c:45
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int filter
0 is simple, 1 is more complex
Definition: vf_w3fdif.c:36
static void filter_simple_high(int32_t *work_line, uint8_t *in_lines_cur[3], uint8_t *in_lines_adj[3], const int16_t *coef, int linesize)
Definition: vf_w3fdif.c:119
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58