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[] = {
89  };
90 
91  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
92  if (!fmts_list)
93  return AVERROR(ENOMEM);
94  return ff_set_common_formats(ctx, fmts_list);
95 }
96 
98  uint8_t *in_lines_cur[2],
99  const int16_t *coef, int linesize)
100 {
101  int i;
102 
103  for (i = 0; i < linesize; i++) {
104  *work_line = *in_lines_cur[0]++ * coef[0];
105  *work_line++ += *in_lines_cur[1]++ * coef[1];
106  }
107 }
108 
110  uint8_t *in_lines_cur[4],
111  const int16_t *coef, int linesize)
112 {
113  int i;
114 
115  for (i = 0; i < linesize; i++) {
116  *work_line = *in_lines_cur[0]++ * coef[0];
117  *work_line += *in_lines_cur[1]++ * coef[1];
118  *work_line += *in_lines_cur[2]++ * coef[2];
119  *work_line++ += *in_lines_cur[3]++ * coef[3];
120  }
121 }
122 
124  uint8_t *in_lines_cur[3],
125  uint8_t *in_lines_adj[3],
126  const int16_t *coef, int linesize)
127 {
128  int i;
129 
130  for (i = 0; i < linesize; i++) {
131  *work_line += *in_lines_cur[0]++ * coef[0];
132  *work_line += *in_lines_adj[0]++ * coef[0];
133  *work_line += *in_lines_cur[1]++ * coef[1];
134  *work_line += *in_lines_adj[1]++ * coef[1];
135  *work_line += *in_lines_cur[2]++ * coef[2];
136  *work_line++ += *in_lines_adj[2]++ * coef[2];
137  }
138 }
139 
141  uint8_t *in_lines_cur[5],
142  uint8_t *in_lines_adj[5],
143  const int16_t *coef, int linesize)
144 {
145  int i;
146 
147  for (i = 0; i < linesize; i++) {
148  *work_line += *in_lines_cur[0]++ * coef[0];
149  *work_line += *in_lines_adj[0]++ * coef[0];
150  *work_line += *in_lines_cur[1]++ * coef[1];
151  *work_line += *in_lines_adj[1]++ * coef[1];
152  *work_line += *in_lines_cur[2]++ * coef[2];
153  *work_line += *in_lines_adj[2]++ * coef[2];
154  *work_line += *in_lines_cur[3]++ * coef[3];
155  *work_line += *in_lines_adj[3]++ * coef[3];
156  *work_line += *in_lines_cur[4]++ * coef[4];
157  *work_line++ += *in_lines_adj[4]++ * coef[4];
158  }
159 }
160 
161 static void filter_scale(uint8_t *out_pixel, const int32_t *work_pixel, int linesize, int max)
162 {
163  int j;
164 
165  for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
166  *out_pixel = av_clip(*work_pixel, 0, 255 * 256 * 128) >> 15;
167 }
168 
170  uint8_t *in_lines_cur8[2],
171  const int16_t *coef, int linesize)
172 {
173  uint16_t *in_lines_cur[2] = { (uint16_t *)in_lines_cur8[0], (uint16_t *)in_lines_cur8[1] };
174  int i;
175 
176  linesize /= 2;
177  for (i = 0; i < linesize; i++) {
178  *work_line = *in_lines_cur[0]++ * coef[0];
179  *work_line++ += *in_lines_cur[1]++ * coef[1];
180  }
181 }
182 
184  uint8_t *in_lines_cur8[4],
185  const int16_t *coef, int linesize)
186 {
187  uint16_t *in_lines_cur[4] = { (uint16_t *)in_lines_cur8[0],
188  (uint16_t *)in_lines_cur8[1],
189  (uint16_t *)in_lines_cur8[2],
190  (uint16_t *)in_lines_cur8[3] };
191  int i;
192 
193  linesize /= 2;
194  for (i = 0; i < linesize; i++) {
195  *work_line = *in_lines_cur[0]++ * coef[0];
196  *work_line += *in_lines_cur[1]++ * coef[1];
197  *work_line += *in_lines_cur[2]++ * coef[2];
198  *work_line++ += *in_lines_cur[3]++ * coef[3];
199  }
200 }
201 
203  uint8_t *in_lines_cur8[3],
204  uint8_t *in_lines_adj8[3],
205  const int16_t *coef, int linesize)
206 {
207  uint16_t *in_lines_cur[3] = { (uint16_t *)in_lines_cur8[0],
208  (uint16_t *)in_lines_cur8[1],
209  (uint16_t *)in_lines_cur8[2] };
210  uint16_t *in_lines_adj[3] = { (uint16_t *)in_lines_adj8[0],
211  (uint16_t *)in_lines_adj8[1],
212  (uint16_t *)in_lines_adj8[2] };
213  int i;
214 
215  linesize /= 2;
216  for (i = 0; i < linesize; i++) {
217  *work_line += *in_lines_cur[0]++ * coef[0];
218  *work_line += *in_lines_adj[0]++ * coef[0];
219  *work_line += *in_lines_cur[1]++ * coef[1];
220  *work_line += *in_lines_adj[1]++ * coef[1];
221  *work_line += *in_lines_cur[2]++ * coef[2];
222  *work_line++ += *in_lines_adj[2]++ * coef[2];
223  }
224 }
225 
227  uint8_t *in_lines_cur8[5],
228  uint8_t *in_lines_adj8[5],
229  const int16_t *coef, int linesize)
230 {
231  uint16_t *in_lines_cur[5] = { (uint16_t *)in_lines_cur8[0],
232  (uint16_t *)in_lines_cur8[1],
233  (uint16_t *)in_lines_cur8[2],
234  (uint16_t *)in_lines_cur8[3],
235  (uint16_t *)in_lines_cur8[4] };
236  uint16_t *in_lines_adj[5] = { (uint16_t *)in_lines_adj8[0],
237  (uint16_t *)in_lines_adj8[1],
238  (uint16_t *)in_lines_adj8[2],
239  (uint16_t *)in_lines_adj8[3],
240  (uint16_t *)in_lines_adj8[4] };
241  int i;
242 
243  linesize /= 2;
244  for (i = 0; i < linesize; i++) {
245  *work_line += *in_lines_cur[0]++ * coef[0];
246  *work_line += *in_lines_adj[0]++ * coef[0];
247  *work_line += *in_lines_cur[1]++ * coef[1];
248  *work_line += *in_lines_adj[1]++ * coef[1];
249  *work_line += *in_lines_cur[2]++ * coef[2];
250  *work_line += *in_lines_adj[2]++ * coef[2];
251  *work_line += *in_lines_cur[3]++ * coef[3];
252  *work_line += *in_lines_adj[3]++ * coef[3];
253  *work_line += *in_lines_cur[4]++ * coef[4];
254  *work_line++ += *in_lines_adj[4]++ * coef[4];
255  }
256 }
257 
258 static void filter16_scale(uint8_t *out_pixel8, const int32_t *work_pixel, int linesize, int max)
259 {
260  uint16_t *out_pixel = (uint16_t *)out_pixel8;
261  int j;
262 
263  linesize /= 2;
264  for (j = 0; j < linesize; j++, out_pixel++, work_pixel++)
265  *out_pixel = av_clip(*work_pixel, 0, max) >> 15;
266 }
267 
269 {
270  AVFilterContext *ctx = inlink->dst;
271  W3FDIFContext *s = ctx->priv;
273  int ret, i, depth;
274 
275  if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
276  return ret;
277 
278  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
279  s->planeheight[0] = s->planeheight[3] = inlink->h;
280 
281  if (inlink->h < 3) {
282  av_log(ctx, AV_LOG_ERROR, "Video of less than 3 lines is not supported\n");
283  return AVERROR(EINVAL);
284  }
285 
288  s->work_line = av_calloc(s->nb_threads, sizeof(*s->work_line));
289  if (!s->work_line)
290  return AVERROR(ENOMEM);
291 
292  for (i = 0; i < s->nb_threads; i++) {
293  s->work_line[i] = av_calloc(FFALIGN(s->linesize[0], 32), sizeof(*s->work_line[0]));
294  if (!s->work_line[i])
295  return AVERROR(ENOMEM);
296  }
297 
298  depth = desc->comp[0].depth;
299  s->max = ((1 << depth) - 1) * 256 * 128;
300  if (depth <= 8) {
306  } else {
312  }
313 
314  if (ARCH_X86)
315  ff_w3fdif_init_x86(&s->dsp, depth);
316 
317  return 0;
318 }
319 
320 static int config_output(AVFilterLink *outlink)
321 {
322  AVFilterLink *inlink = outlink->src->inputs[0];
323 
324  outlink->time_base.num = inlink->time_base.num;
325  outlink->time_base.den = inlink->time_base.den * 2;
326  outlink->frame_rate.num = inlink->frame_rate.num * 2;
327  outlink->frame_rate.den = inlink->frame_rate.den;
328 
329  return 0;
330 }
331 
332 /*
333  * Filter coefficients from PH-2071, scaled by 256 * 128.
334  * Each set of coefficients has a set for low-frequencies and high-frequencies.
335  * n_coef_lf[] and n_coef_hf[] are the number of coefs for simple and more-complex.
336  * It is important for later that n_coef_lf[] is even and n_coef_hf[] is odd.
337  * coef_lf[][] and coef_hf[][] are the coefficients for low-frequencies
338  * and high-frequencies for simple and more-complex mode.
339  */
340 static const int8_t n_coef_lf[2] = { 2, 4 };
341 static const int16_t coef_lf[2][4] = {{ 16384, 16384, 0, 0},
342  { -852, 17236, 17236, -852}};
343 static const int8_t n_coef_hf[2] = { 3, 5 };
344 static const int16_t coef_hf[2][5] = {{ -2048, 4096, -2048, 0, 0},
345  { 1016, -3801, 5570, -3801, 1016}};
346 
347 typedef struct ThreadData {
348  AVFrame *out, *cur, *adj;
349  int plane;
350 } ThreadData;
351 
352 static int deinterlace_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
353 {
354  W3FDIFContext *s = ctx->priv;
355  ThreadData *td = arg;
356  AVFrame *out = td->out;
357  AVFrame *cur = td->cur;
358  AVFrame *adj = td->adj;
359  const int plane = td->plane;
360  const int filter = s->filter;
361  uint8_t *in_line, *in_lines_cur[5], *in_lines_adj[5];
362  uint8_t *out_line, *out_pixel;
363  int32_t *work_line, *work_pixel;
364  uint8_t *cur_data = cur->data[plane];
365  uint8_t *adj_data = adj->data[plane];
366  uint8_t *dst_data = out->data[plane];
367  const int linesize = s->linesize[plane];
368  const int height = s->planeheight[plane];
369  const int cur_line_stride = cur->linesize[plane];
370  const int adj_line_stride = adj->linesize[plane];
371  const int dst_line_stride = out->linesize[plane];
372  const int start = (height * jobnr) / nb_jobs;
373  const int end = (height * (jobnr+1)) / nb_jobs;
374  const int max = s->max;
375  int j, y_in, y_out;
376 
377  /* copy unchanged the lines of the field */
378  y_out = start + ((s->field == cur->top_field_first) ^ (start & 1));
379 
380  in_line = cur_data + (y_out * cur_line_stride);
381  out_line = dst_data + (y_out * dst_line_stride);
382 
383  while (y_out < end) {
384  memcpy(out_line, in_line, linesize);
385  y_out += 2;
386  in_line += cur_line_stride * 2;
387  out_line += dst_line_stride * 2;
388  }
389 
390  /* interpolate other lines of the field */
391  y_out = start + ((s->field != cur->top_field_first) ^ (start & 1));
392 
393  out_line = dst_data + (y_out * dst_line_stride);
394 
395  while (y_out < end) {
396  /* get low vertical frequencies from current field */
397  for (j = 0; j < n_coef_lf[filter]; j++) {
398  y_in = (y_out + 1) + (j * 2) - n_coef_lf[filter];
399 
400  while (y_in < 0)
401  y_in += 2;
402  while (y_in >= height)
403  y_in -= 2;
404 
405  in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
406  }
407 
408  work_line = s->work_line[jobnr];
409  switch (n_coef_lf[filter]) {
410  case 2:
411  s->dsp.filter_simple_low(work_line, in_lines_cur,
412  coef_lf[filter], linesize);
413  break;
414  case 4:
415  s->dsp.filter_complex_low(work_line, in_lines_cur,
416  coef_lf[filter], linesize);
417  }
418 
419  /* get high vertical frequencies from adjacent fields */
420  for (j = 0; j < n_coef_hf[filter]; j++) {
421  y_in = (y_out + 1) + (j * 2) - n_coef_hf[filter];
422 
423  while (y_in < 0)
424  y_in += 2;
425  while (y_in >= height)
426  y_in -= 2;
427 
428  in_lines_cur[j] = cur_data + (y_in * cur_line_stride);
429  in_lines_adj[j] = adj_data + (y_in * adj_line_stride);
430  }
431 
432  work_line = s->work_line[jobnr];
433  switch (n_coef_hf[filter]) {
434  case 3:
435  s->dsp.filter_simple_high(work_line, in_lines_cur, in_lines_adj,
436  coef_hf[filter], linesize);
437  break;
438  case 5:
439  s->dsp.filter_complex_high(work_line, in_lines_cur, in_lines_adj,
440  coef_hf[filter], linesize);
441  }
442 
443  /* save scaled result to the output frame, scaling down by 256 * 128 */
444  work_pixel = s->work_line[jobnr];
445  out_pixel = out_line;
446 
447  s->dsp.filter_scale(out_pixel, work_pixel, linesize, max);
448 
449  /* move on to next line */
450  y_out += 2;
451  out_line += dst_line_stride * 2;
452  }
453 
454  return 0;
455 }
456 
457 static int filter(AVFilterContext *ctx, int is_second)
458 {
459  W3FDIFContext *s = ctx->priv;
460  AVFilterLink *outlink = ctx->outputs[0];
461  AVFrame *out, *adj;
462  ThreadData td;
463  int plane;
464 
465  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
466  if (!out)
467  return AVERROR(ENOMEM);
468  av_frame_copy_props(out, s->cur);
469  out->interlaced_frame = 0;
470 
471  if (!is_second) {
472  if (out->pts != AV_NOPTS_VALUE)
473  out->pts *= 2;
474  } else {
475  int64_t cur_pts = s->cur->pts;
476  int64_t next_pts = s->next->pts;
477 
478  if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
479  out->pts = cur_pts + next_pts;
480  } else {
481  out->pts = AV_NOPTS_VALUE;
482  }
483  }
484 
485  adj = s->field ? s->next : s->prev;
486  td.out = out; td.cur = s->cur; td.adj = adj;
487  for (plane = 0; plane < s->nb_planes; plane++) {
488  td.plane = plane;
489  ctx->internal->execute(ctx, deinterlace_slice, &td, NULL, FFMIN(s->planeheight[plane], s->nb_threads));
490  }
491 
492  s->field = !s->field;
493 
494  return ff_filter_frame(outlink, out);
495 }
496 
498 {
499  AVFilterContext *ctx = inlink->dst;
500  W3FDIFContext *s = ctx->priv;
501  int ret;
502 
503  av_frame_free(&s->prev);
504  s->prev = s->cur;
505  s->cur = s->next;
506  s->next = frame;
507 
508  if (!s->cur) {
509  s->cur = av_frame_clone(s->next);
510  if (!s->cur)
511  return AVERROR(ENOMEM);
512  }
513 
514  if ((s->deint && !s->cur->interlaced_frame) || ctx->is_disabled) {
515  AVFrame *out = av_frame_clone(s->cur);
516  if (!out)
517  return AVERROR(ENOMEM);
518 
519  av_frame_free(&s->prev);
520  if (out->pts != AV_NOPTS_VALUE)
521  out->pts *= 2;
522  return ff_filter_frame(ctx->outputs[0], out);
523  }
524 
525  if (!s->prev)
526  return 0;
527 
528  ret = filter(ctx, 0);
529  if (ret < 0)
530  return ret;
531 
532  return filter(ctx, 1);
533 }
534 
535 static int request_frame(AVFilterLink *outlink)
536 {
537  AVFilterContext *ctx = outlink->src;
538  W3FDIFContext *s = ctx->priv;
539  int ret;
540 
541  if (s->eof)
542  return AVERROR_EOF;
543 
544  ret = ff_request_frame(ctx->inputs[0]);
545 
546  if (ret == AVERROR_EOF && s->cur) {
548  if (!next)
549  return AVERROR(ENOMEM);
550  next->pts = s->next->pts * 2 - s->cur->pts;
551  filter_frame(ctx->inputs[0], next);
552  s->eof = 1;
553  } else if (ret < 0) {
554  return ret;
555  }
556 
557  return 0;
558 }
559 
561 {
562  W3FDIFContext *s = ctx->priv;
563  int i;
564 
565  av_frame_free(&s->prev);
566  av_frame_free(&s->cur );
567  av_frame_free(&s->next);
568 
569  for (i = 0; i < s->nb_threads; i++)
570  av_freep(&s->work_line[i]);
571 
572  av_freep(&s->work_line);
573 }
574 
575 static const AVFilterPad w3fdif_inputs[] = {
576  {
577  .name = "default",
578  .type = AVMEDIA_TYPE_VIDEO,
579  .filter_frame = filter_frame,
580  .config_props = config_input,
581  },
582  { NULL }
583 };
584 
585 static const AVFilterPad w3fdif_outputs[] = {
586  {
587  .name = "default",
588  .type = AVMEDIA_TYPE_VIDEO,
589  .config_props = config_output,
590  .request_frame = request_frame,
591  },
592  { NULL }
593 };
594 
596  .name = "w3fdif",
597  .description = NULL_IF_CONFIG_SMALL("Apply Martin Weston three field deinterlace."),
598  .priv_size = sizeof(W3FDIFContext),
599  .priv_class = &w3fdif_class,
600  .uninit = uninit,
602  .inputs = w3fdif_inputs,
603  .outputs = w3fdif_outputs,
605 };
int plane
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#define NULL
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AVFrame * out
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Definition: vf_w3fdif.c:43
#define AV_PIX_FMT_YUVA422P9
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const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
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AVOption.
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AVFrame * cur
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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:258
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:109
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:268
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1093
#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:388
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:421
#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:226
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:140
#define AVERROR_EOF
End of file.
Definition: error.h:55
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:442
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:429
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
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:259
#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:569
#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:344
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
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:431
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:408
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
int planeheight[4]
height of each plane
Definition: vf_w3fdif.c:39
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:409
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:183
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
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:428
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
static const int16_t coef_lf[2][4]
Definition: vf_w3fdif.c:341
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
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:426
static const int8_t n_coef_hf[2]
Definition: vf_w3fdif.c:343
#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:595
static int config_output(AVFilterLink *outlink)
Definition: vf_w3fdif.c:320
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:395
Used for passing data between threads.
Definition: dsddec.c:64
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
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:348
static const int8_t n_coef_lf[2]
Definition: vf_w3fdif.c:340
AVFrame * cur
Definition: vf_w3fdif.c:348
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:202
#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:309
#define CONST(name, help, val, unit)
Definition: vf_w3fdif.c:53
static const AVFilterPad w3fdif_inputs[]
Definition: vf_w3fdif.c:575
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:497
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
int deint
which frames to deinterlace
Definition: vf_w3fdif.c:37
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:423
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:352
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:447
static const AVFilterPad w3fdif_outputs[]
Definition: vf_w3fdif.c:585
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:169
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_w3fdif.c:560
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:161
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:97
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:535
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:123
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_PIX_FMT_YUVA422P12
Definition: pixfmt.h:427
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58