Libav
vf_yadif.c
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1 /*
2  * Copyright (C) 2006-2010 Michael Niedermayer <michaelni@gmx.at>
3  * 2010 James Darnley <james.darnley@gmail.com>
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/cpu.h"
23 #include "libavutil/common.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixdesc.h"
26 #include "avfilter.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "video.h"
30 #include "yadif.h"
31 
32 #undef NDEBUG
33 #include <assert.h>
34 
35 typedef struct ThreadData {
37  int plane;
38  int w, h;
39  int parity;
40  int tff;
41 } ThreadData;
42 
43 #define MAX_ALIGN 8
44 
45 #define CHECK(j)\
46  { int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\
47  + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\
48  + FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\
49  if (score < spatial_score) {\
50  spatial_score= score;\
51  spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\
52 
53 /* The is_not_edge argument here controls when the code will enter a branch
54  * which reads up to and including x-3 and x+3. */
55 
56 #define FILTER(start, end, is_not_edge) \
57  for (x = start; x < end; x++) { \
58  int c = cur[mrefs]; \
59  int d = (prev2[0] + next2[0])>>1; \
60  int e = cur[prefs]; \
61  int temporal_diff0 = FFABS(prev2[0] - next2[0]); \
62  int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \
63  int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \
64  int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \
65  int spatial_pred = (c+e) >> 1; \
66  \
67  if (is_not_edge) {\
68  int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \
69  + FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \
70  CHECK(-1) CHECK(-2) }} }} \
71  CHECK( 1) CHECK( 2) }} }} \
72  }\
73  \
74  if (mode < 2) { \
75  int b = (prev2[2 * mrefs] + next2[2 * mrefs])>>1; \
76  int f = (prev2[2 * prefs] + next2[2 * prefs])>>1; \
77  int max = FFMAX3(d - e, d - c, FFMIN(b - c, f - e)); \
78  int min = FFMIN3(d - e, d - c, FFMAX(b - c, f - e)); \
79  \
80  diff = FFMAX3(diff, min, -max); \
81  } \
82  \
83  if (spatial_pred > d + diff) \
84  spatial_pred = d + diff; \
85  else if (spatial_pred < d - diff) \
86  spatial_pred = d - diff; \
87  \
88  dst[0] = spatial_pred; \
89  \
90  dst++; \
91  cur++; \
92  prev++; \
93  next++; \
94  prev2++; \
95  next2++; \
96  }
97 
98 static void filter_line_c(void *dst1,
99  void *prev1, void *cur1, void *next1,
100  int w, int prefs, int mrefs, int parity, int mode)
101 {
102  uint8_t *dst = dst1;
103  uint8_t *prev = prev1;
104  uint8_t *cur = cur1;
105  uint8_t *next = next1;
106  int x;
107  uint8_t *prev2 = parity ? prev : cur ;
108  uint8_t *next2 = parity ? cur : next;
109 
110  /* The function is called with the pointers already pointing to data[3] and
111  * with 6 subtracted from the width. This allows the FILTER macro to be
112  * called so that it processes all the pixels normally. A constant value of
113  * true for is_not_edge lets the compiler ignore the if statement. */
114  FILTER(0, w, 1)
115 }
116 
117 static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1,
118  int w, int prefs, int mrefs, int parity, int mode)
119 {
120  uint8_t *dst = dst1;
121  uint8_t *prev = prev1;
122  uint8_t *cur = cur1;
123  uint8_t *next = next1;
124  int x;
125  uint8_t *prev2 = parity ? prev : cur ;
126  uint8_t *next2 = parity ? cur : next;
127 
128  const int edge = MAX_ALIGN - 1;
129 
130  /* Only edge pixels need to be processed here. A constant value of false
131  * for is_not_edge should let the compiler ignore the whole branch. */
132  FILTER(0, 3, 0)
133 
134  dst = (uint8_t*)dst1 + w - edge;
135  prev = (uint8_t*)prev1 + w - edge;
136  cur = (uint8_t*)cur1 + w - edge;
137  next = (uint8_t*)next1 + w - edge;
138  prev2 = (uint8_t*)(parity ? prev : cur);
139  next2 = (uint8_t*)(parity ? cur : next);
140 
141  FILTER(w - edge, w - 3, 1)
142  FILTER(w - 3, w, 0)
143 }
144 
145 
146 static void filter_line_c_16bit(void *dst1,
147  void *prev1, void *cur1, void *next1,
148  int w, int prefs, int mrefs, int parity,
149  int mode)
150 {
151  uint16_t *dst = dst1;
152  uint16_t *prev = prev1;
153  uint16_t *cur = cur1;
154  uint16_t *next = next1;
155  int x;
156  uint16_t *prev2 = parity ? prev : cur ;
157  uint16_t *next2 = parity ? cur : next;
158  mrefs /= 2;
159  prefs /= 2;
160 
161  FILTER(0, w, 1)
162 }
163 
164 static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1,
165  int w, int prefs, int mrefs, int parity, int mode)
166 {
167  uint16_t *dst = dst1;
168  uint16_t *prev = prev1;
169  uint16_t *cur = cur1;
170  uint16_t *next = next1;
171  int x;
172  uint16_t *prev2 = parity ? prev : cur ;
173  uint16_t *next2 = parity ? cur : next;
174 
175  const int edge = MAX_ALIGN / 2 - 1;
176 
177  mrefs /= 2;
178  prefs /= 2;
179 
180  FILTER(0, 3, 0)
181 
182  dst = (uint16_t*)dst1 + w - edge;
183  prev = (uint16_t*)prev1 + w - edge;
184  cur = (uint16_t*)cur1 + w - edge;
185  next = (uint16_t*)next1 + w - edge;
186  prev2 = (uint16_t*)(parity ? prev : cur);
187  next2 = (uint16_t*)(parity ? cur : next);
188 
189  FILTER(w - edge, w - 3, 1)
190  FILTER(w - 3, w, 0)
191 }
192 
193 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
194 {
195  YADIFContext *s = ctx->priv;
196  ThreadData *td = arg;
197  int refs = s->cur->linesize[td->plane];
198  int df = (s->csp->comp[td->plane].depth_minus1 + 8) / 8;
199  int pix_3 = 3 * df;
200  int slice_h = td->h / nb_jobs;
201  int slice_start = jobnr * slice_h;
202  int slice_end = (jobnr == nb_jobs - 1) ? td->h : (jobnr + 1) * slice_h;
203  int y;
204  int edge = 3 + MAX_ALIGN / df - 1;
205 
206  /* filtering reads 3 pixels to the left/right; to avoid invalid reads,
207  * we need to call the c variant which avoids this for border pixels
208  */
209  for (y = slice_start; y < slice_end; y++) {
210  if ((y ^ td->parity) & 1) {
211  uint8_t *prev = &s->prev->data[td->plane][y * refs];
212  uint8_t *cur = &s->cur ->data[td->plane][y * refs];
213  uint8_t *next = &s->next->data[td->plane][y * refs];
214  uint8_t *dst = &td->frame->data[td->plane][y * td->frame->linesize[td->plane]];
215  int mode = y == 1 || y + 2 == td->h ? 2 : s->mode;
216  s->filter_line(dst + pix_3, prev + pix_3, cur + pix_3,
217  next + pix_3, td->w - edge,
218  y + 1 < td->h ? refs : -refs,
219  y ? -refs : refs,
220  td->parity ^ td->tff, mode);
221  s->filter_edges(dst, prev, cur, next, td->w,
222  y + 1 < td->h ? refs : -refs,
223  y ? -refs : refs,
224  td->parity ^ td->tff, mode);
225  } else {
226  memcpy(&td->frame->data[td->plane][y * td->frame->linesize[td->plane]],
227  &s->cur->data[td->plane][y * refs], td->w * df);
228  }
229  }
230  return 0;
231 }
232 
233 static void filter(AVFilterContext *ctx, AVFrame *dstpic,
234  int parity, int tff)
235 {
236  YADIFContext *yadif = ctx->priv;
237  ThreadData td = { .frame = dstpic, .parity = parity, .tff = tff };
238  int i;
239 
240  for (i = 0; i < yadif->csp->nb_components; i++) {
241  int w = dstpic->width;
242  int h = dstpic->height;
243 
244  if (i == 1 || i == 2) {
245  w >>= yadif->csp->log2_chroma_w;
246  h >>= yadif->csp->log2_chroma_h;
247  }
248 
249 
250  td.w = w;
251  td.h = h;
252  td.plane = i;
253 
254  ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(h, ctx->graph->nb_threads));
255  }
256 
257  emms_c();
258 }
259 
260 static AVFrame *get_video_buffer(AVFilterLink *link, int w, int h)
261 {
262  AVFrame *frame;
263  int width = FFALIGN(w, 32);
264  int height = FFALIGN(h + 2, 32);
265  int i;
266 
267  frame = ff_default_get_video_buffer(link, width, height);
268 
269  frame->width = w;
270  frame->height = h;
271 
272  for (i = 0; i < 3; i++)
273  frame->data[i] += frame->linesize[i];
274 
275  return frame;
276 }
277 
278 static int return_frame(AVFilterContext *ctx, int is_second)
279 {
280  YADIFContext *yadif = ctx->priv;
281  AVFilterLink *link = ctx->outputs[0];
282  int tff, ret;
283 
284  if (yadif->parity == -1) {
285  tff = yadif->cur->interlaced_frame ?
286  yadif->cur->top_field_first : 1;
287  } else {
288  tff = yadif->parity ^ 1;
289  }
290 
291  if (is_second) {
292  yadif->out = ff_get_video_buffer(link, link->w, link->h);
293  if (!yadif->out)
294  return AVERROR(ENOMEM);
295 
296  av_frame_copy_props(yadif->out, yadif->cur);
297  yadif->out->interlaced_frame = 0;
298  }
299 
300  filter(ctx, yadif->out, tff ^ !is_second, tff);
301 
302  if (is_second) {
303  int64_t cur_pts = yadif->cur->pts;
304  int64_t next_pts = yadif->next->pts;
305 
306  if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
307  yadif->out->pts = cur_pts + next_pts;
308  } else {
309  yadif->out->pts = AV_NOPTS_VALUE;
310  }
311  }
312  ret = ff_filter_frame(ctx->outputs[0], yadif->out);
313 
314  yadif->frame_pending = (yadif->mode&1) && !is_second;
315  return ret;
316 }
317 
318 static int filter_frame(AVFilterLink *link, AVFrame *frame)
319 {
320  AVFilterContext *ctx = link->dst;
321  YADIFContext *yadif = ctx->priv;
322 
323  if (yadif->frame_pending)
324  return_frame(ctx, 1);
325 
326  if (yadif->prev)
327  av_frame_free(&yadif->prev);
328  yadif->prev = yadif->cur;
329  yadif->cur = yadif->next;
330  yadif->next = frame;
331 
332  if (!yadif->cur)
333  return 0;
334 
335  if (yadif->auto_enable && !yadif->cur->interlaced_frame) {
336  yadif->out = av_frame_clone(yadif->cur);
337  if (!yadif->out)
338  return AVERROR(ENOMEM);
339 
340  av_frame_free(&yadif->prev);
341  if (yadif->out->pts != AV_NOPTS_VALUE)
342  yadif->out->pts *= 2;
343  return ff_filter_frame(ctx->outputs[0], yadif->out);
344  }
345 
346  if (!yadif->prev &&
347  !(yadif->prev = av_frame_clone(yadif->cur)))
348  return AVERROR(ENOMEM);
349 
350  yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h);
351  if (!yadif->out)
352  return AVERROR(ENOMEM);
353 
354  av_frame_copy_props(yadif->out, yadif->cur);
355  yadif->out->interlaced_frame = 0;
356 
357  if (yadif->out->pts != AV_NOPTS_VALUE)
358  yadif->out->pts *= 2;
359 
360  return return_frame(ctx, 0);
361 }
362 
363 static int request_frame(AVFilterLink *link)
364 {
365  AVFilterContext *ctx = link->src;
366  YADIFContext *yadif = ctx->priv;
367 
368  if (yadif->frame_pending) {
369  return_frame(ctx, 1);
370  return 0;
371  }
372 
373  do {
374  int ret;
375 
376  if (yadif->eof)
377  return AVERROR_EOF;
378 
379  ret = ff_request_frame(link->src->inputs[0]);
380 
381  if (ret == AVERROR_EOF && yadif->next) {
382  AVFrame *next = av_frame_clone(yadif->next);
383 
384  if (!next)
385  return AVERROR(ENOMEM);
386 
387  next->pts = yadif->next->pts * 2 - yadif->cur->pts;
388 
389  filter_frame(link->src->inputs[0], next);
390  yadif->eof = 1;
391  } else if (ret < 0) {
392  return ret;
393  }
394  } while (!yadif->cur);
395 
396  return 0;
397 }
398 
399 static int poll_frame(AVFilterLink *link)
400 {
401  YADIFContext *yadif = link->src->priv;
402  int ret, val;
403 
404  if (yadif->frame_pending)
405  return 1;
406 
407  val = ff_poll_frame(link->src->inputs[0]);
408  if (val <= 0)
409  return val;
410 
411  //FIXME change API to not requre this red tape
412  if (val == 1 && !yadif->next) {
413  if ((ret = ff_request_frame(link->src->inputs[0])) < 0)
414  return ret;
415  val = ff_poll_frame(link->src->inputs[0]);
416  if (val <= 0)
417  return val;
418  }
419  assert(yadif->next || !val);
420 
421  if (yadif->auto_enable && yadif->next && !yadif->next->interlaced_frame)
422  return val;
423 
424  return val * ((yadif->mode&1)+1);
425 }
426 
427 static av_cold void uninit(AVFilterContext *ctx)
428 {
429  YADIFContext *yadif = ctx->priv;
430 
431  if (yadif->prev) av_frame_free(&yadif->prev);
432  if (yadif->cur ) av_frame_free(&yadif->cur );
433  if (yadif->next) av_frame_free(&yadif->next);
434 }
435 
437 {
438  static const enum AVPixelFormat pix_fmts[] = {
459  };
460 
462 
463  return 0;
464 }
465 
466 static int config_props(AVFilterLink *link)
467 {
468  YADIFContext *s = link->src->priv;
469 
470  link->time_base.num = link->src->inputs[0]->time_base.num;
471  link->time_base.den = link->src->inputs[0]->time_base.den * 2;
472  link->w = link->src->inputs[0]->w;
473  link->h = link->src->inputs[0]->h;
474 
475  s->csp = av_pix_fmt_desc_get(link->format);
476  if (s->csp->comp[0].depth_minus1 / 8 == 1) {
479  } else {
482 
483  if (ARCH_X86)
485  }
486 
487  return 0;
488 }
489 
490 #define OFFSET(x) offsetof(YADIFContext, x)
491 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM
492 static const AVOption options[] = {
493  { "mode", NULL, OFFSET(mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, FLAGS },
494  { "parity", NULL, OFFSET(parity), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, FLAGS, "parity" },
495  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, .unit = "parity" },
496  { "tff", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .unit = "parity" },
497  { "bff", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .unit = "parity" },
498  { "auto", NULL, OFFSET(auto_enable), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
499  { NULL },
500 };
501 
502 static const AVClass yadif_class = {
503  .class_name = "yadif",
504  .item_name = av_default_item_name,
505  .option = options,
506  .version = LIBAVUTIL_VERSION_INT,
507 };
508 
510  {
511  .name = "default",
512  .type = AVMEDIA_TYPE_VIDEO,
513  .get_video_buffer = get_video_buffer,
514  .filter_frame = filter_frame,
515  },
516  { NULL }
517 };
518 
520  {
521  .name = "default",
522  .type = AVMEDIA_TYPE_VIDEO,
523  .poll_frame = poll_frame,
524  .request_frame = request_frame,
525  .config_props = config_props,
526  },
527  { NULL }
528 };
529 
531  .name = "yadif",
532  .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image"),
533 
534  .priv_size = sizeof(YADIFContext),
535  .priv_class = &yadif_class,
536  .uninit = uninit,
538 
539  .inputs = avfilter_vf_yadif_inputs,
540 
541  .outputs = avfilter_vf_yadif_outputs,
542 
544 };
void(* filter_edges)(void *dst, void *prev, void *cur, void *next, int w, int prefs, int mrefs, int parity, int mode)
Definition: yadif.h:61
static const AVFilterPad avfilter_vf_yadif_inputs[]
Definition: vf_yadif.c:509
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:1599
This structure describes decoded (raw) audio or video data.
Definition: frame.h:135
AVOption.
Definition: opt.h:234
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:153
#define MAX_ALIGN
Definition: vf_yadif.c:43
int tff
Definition: vf_yadif.c:40
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:70
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:232
Main libavfilter public API header.
int num
numerator
Definition: rational.h:44
int frame_pending
Definition: yadif.h:42
static const AVOption options[]
Definition: vf_yadif.c:492
static void filter_line_c(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int parity, int mode)
Definition: vf_yadif.c:98
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
Definition: pixfmt.h:129
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
#define FFALIGN(x, a)
Definition: common.h:62
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:165
struct AVFilterGraph * graph
filtergraph this filter belongs to
Definition: avfilter.h:586
const char * name
Pad name.
Definition: internal.h:42
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:38
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:571
static const AVClass yadif_class
Definition: vf_yadif.c:502
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:733
static int request_frame(AVFilterLink *link)
Definition: vf_yadif.c:363
AVFrame * cur
Definition: yadif.h:50
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:104
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:97
uint8_t
#define av_cold
Definition: attributes.h:66
AVOptions.
#define AV_NE(be, le)
Definition: common.h:45
#define emms_c()
Definition: internal.h:47
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:211
AVFrame * next
Definition: yadif.h:51
#define ARCH_X86
Definition: config.h:33
int plane
Definition: vf_yadif.c:37
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of PIX_FMT_YUV440P and setting color_range ...
Definition: pixfmt.h:103
int nb_threads
Maximum number of threads used by filters in this graph.
Definition: avfilter.h:976
void(* filter_line)(void *dst, void *prev, void *cur, void *next, int w, int prefs, int mrefs, int parity, int mode)
Required alignment for filter_line.
Definition: yadif.h:58
static int flags
Definition: log.c:44
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_...
Definition: pixfmt.h:78
#define AVERROR_EOF
End of file.
Definition: error.h:51
static void filter(AVFilterContext *ctx, AVFrame *dstpic, int parity, int tff)
Definition: vf_yadif.c:233
static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int parity, int mode)
Definition: vf_yadif.c:117
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:320
void 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:379
AVFrame * prev
Definition: yadif.h:52
A filter pad used for either input or output.
Definition: internal.h:36
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:159
uint16_t depth_minus1
Number of bits in the component minus 1.
Definition: pixdesc.h:57
int width
width and height of the video frame
Definition: frame.h:174
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:134
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:69
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:145
void * priv
private data for use by the filter
Definition: avfilter.h:584
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:415
int parity
Definition: vf_yadif.c:39
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:155
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:132
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_yadif.c:193
static int query_formats(AVFilterContext *ctx)
Definition: vf_yadif.c:436
#define OFFSET(x)
Definition: vf_yadif.c:490
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:69
static const AVFilterPad avfilter_vf_yadif_outputs[]
Definition: vf_yadif.c:519
int auto_enable
0: deinterlace all frames 1: only deinterlace frames marked as interlaced
Definition: yadif.h:48
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:71
#define FFMIN(a, b)
Definition: common.h:57
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_...
Definition: pixfmt.h:77
AVFrame * frame
Definition: vf_yadif.c:36
static int config_props(AVFilterLink *link)
Definition: vf_yadif.c:466
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:152
AVFilter ff_vf_yadif
Definition: vf_yadif.c:530
int eof
Definition: yadif.h:65
LIBAVUTIL_VERSION_INT
Definition: eval.c:55
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:270
static int poll_frame(AVFilterLink *link)
Definition: vf_yadif.c:399
NULL
Definition: eval.c:55
static int width
Definition: utils.c:156
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), big-endian
Definition: pixfmt.h:130
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:153
av_default_item_name
Definition: dnxhdenc.c:52
AVFrame * out
Definition: yadif.h:53
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:71
Describe the class of an AVClass context structure.
Definition: log.h:33
Filter definition.
Definition: avfilter.h:421
static int filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: vf_yadif.c:318
Y , 16bpp, big-endian.
Definition: pixfmt.h:100
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:221
int parity
0: top field first 1: bottom field first -1: auto-detection
Definition: yadif.h:40
const char * name
Filter name.
Definition: avfilter.h:425
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:578
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:609
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:141
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
Definition: pixfmt.h:133
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:38
const AVPixFmtDescriptor * csp
Definition: yadif.h:64
int height
Definition: gxfenc.c:72
#define FILTER(start, end, is_not_edge)
Definition: vf_yadif.c:56
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:65
Y , 8bpp.
Definition: pixfmt.h:73
common internal and external API header
#define FLAGS
Definition: vf_yadif.c:491
static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int parity, int mode)
Definition: vf_yadif.c:164
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
Definition: pixfmt.h:131
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_...
Definition: pixfmt.h:79
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:72
int den
denominator
Definition: rational.h:45
avfilter_execute_func * execute
Definition: internal.h:137
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2017
static AVFrame * get_video_buffer(AVFilterLink *link, int w, int h)
Definition: vf_yadif.c:260
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_yadif.c:427
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:325
av_cold void ff_yadif_init_x86(YADIFContext *yadif)
Definition: vf_yadif_init.c:39
Y , 16bpp, little-endian.
Definition: pixfmt.h:101
An instance of a filter.
Definition: avfilter.h:563
int height
Definition: frame.h:174
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:102
static int return_frame(AVFilterContext *ctx, int is_second)
Definition: vf_yadif.c:278
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Definition: avfilter.c:249
internal API functions
int ff_poll_frame(AVFilterLink *link)
Poll a frame from the filter chain.
Definition: avfilter.c:260
AVPixelFormat
Pixel format.
Definition: pixfmt.h:63
int mode
0: send 1 frame for each frame 1: send 1 frame for each field 2: like 0 but skips spatial interlacing...
Definition: yadif.h:33
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
Definition: pixfmt.h:158
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:367
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:228
static void filter_line_c_16bit(void *dst1, void *prev1, void *cur1, void *next1, int w, int prefs, int mrefs, int parity, int mode)
Definition: vf_yadif.c:146
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
Definition: pixfmt.h:154