FFmpeg  4.4.5
vf_yadif.c
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1 /*
2  * Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at>
3  * 2010 James Darnley <james.darnley@gmail.com>
4 
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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/avassert.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/common.h"
25 #include "libavutil/pixdesc.h"
26 #include "libavutil/imgutils.h"
27 #include "avfilter.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31 #include "yadif.h"
32 
33 typedef struct ThreadData {
34  AVFrame *frame;
35  int plane;
36  int w, h;
37  int parity;
38  int tff;
39 } ThreadData;
40 
41 #define CHECK(j)\
42  { int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\
43  + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\
44  + FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\
45  if (score < spatial_score) {\
46  spatial_score= score;\
47  spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\
48 
49 /* The is_not_edge argument here controls when the code will enter a branch
50  * which reads up to and including x-3 and x+3. */
51 
52 #define FILTER(start, end, is_not_edge) \
53  for (x = start; x < end; x++) { \
54  int c = cur[mrefs]; \
55  int d = (prev2[0] + next2[0])>>1; \
56  int e = cur[prefs]; \
57  int temporal_diff0 = FFABS(prev2[0] - next2[0]); \
58  int temporal_diff1 =(FFABS(prev[mrefs] - c) + FFABS(prev[prefs] - e) )>>1; \
59  int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \
60  int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \
61  int spatial_pred = (c+e) >> 1; \
62  \
63  if (is_not_edge) {\
64  int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \
65  + FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \
66  CHECK(-1) CHECK(-2) }} }} \
67  CHECK( 1) CHECK( 2) }} }} \
68  }\
69  \
70  if (!(mode&2)) { \
71  int b = (prev2[2 * mrefs] + next2[2 * mrefs])>>1; \
72  int f = (prev2[2 * prefs] + next2[2 * prefs])>>1; \
73  int max = FFMAX3(d - e, d - c, FFMIN(b - c, f - e)); \
74  int min = FFMIN3(d - e, d - c, FFMAX(b - c, f - e)); \
75  \
76  diff = FFMAX3(diff, min, -max); \
77  } \
78  \
79  if (spatial_pred > d + diff) \
80  spatial_pred = d + diff; \
81  else if (spatial_pred < d - diff) \
82  spatial_pred = d - diff; \
83  \
84  dst[0] = spatial_pred; \
85  \
86  dst++; \
87  cur++; \
88  prev++; \
89  next++; \
90  prev2++; \
91  next2++; \
92  }
93 
94 static void filter_line_c(void *dst1,
95  void *prev1, void *cur1, void *next1,
96  int w, int prefs, int mrefs, int parity, int mode)
97 {
98  uint8_t *dst = dst1;
99  uint8_t *prev = prev1;
100  uint8_t *cur = cur1;
101  uint8_t *next = next1;
102  int x;
103  uint8_t *prev2 = parity ? prev : cur ;
104  uint8_t *next2 = parity ? cur : next;
105 
106  /* The function is called with the pointers already pointing to data[3] and
107  * with 6 subtracted from the width. This allows the FILTER macro to be
108  * called so that it processes all the pixels normally. A constant value of
109  * true for is_not_edge lets the compiler ignore the if statement. */
110  FILTER(0, w, 1)
111 }
112 
113 #define MAX_ALIGN 8
114 static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1,
115  int w, int prefs, int mrefs, int parity, int mode)
116 {
117  uint8_t *dst = dst1;
118  uint8_t *prev = prev1;
119  uint8_t *cur = cur1;
120  uint8_t *next = next1;
121  int x;
122  uint8_t *prev2 = parity ? prev : cur ;
123  uint8_t *next2 = parity ? cur : next;
124 
125  const int edge = MAX_ALIGN - 1;
126  int offset = FFMAX(w - edge, 3);
127 
128  /* Only edge pixels need to be processed here. A constant value of false
129  * for is_not_edge should let the compiler ignore the whole branch. */
130  FILTER(0, FFMIN(3, w), 0)
131 
132  dst = (uint8_t*)dst1 + offset;
133  prev = (uint8_t*)prev1 + offset;
134  cur = (uint8_t*)cur1 + offset;
135  next = (uint8_t*)next1 + offset;
136  prev2 = (uint8_t*)(parity ? prev : cur);
137  next2 = (uint8_t*)(parity ? cur : next);
138 
139  FILTER(offset, w - 3, 1)
140  offset = FFMAX(offset, w - 3);
141  FILTER(offset, w, 0)
142 }
143 
144 
145 static void filter_line_c_16bit(void *dst1,
146  void *prev1, void *cur1, void *next1,
147  int w, int prefs, int mrefs, int parity,
148  int mode)
149 {
150  uint16_t *dst = dst1;
151  uint16_t *prev = prev1;
152  uint16_t *cur = cur1;
153  uint16_t *next = next1;
154  int x;
155  uint16_t *prev2 = parity ? prev : cur ;
156  uint16_t *next2 = parity ? cur : next;
157  mrefs /= 2;
158  prefs /= 2;
159 
160  FILTER(0, w, 1)
161 }
162 
163 static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1,
164  int w, int prefs, int mrefs, int parity, int mode)
165 {
166  uint16_t *dst = dst1;
167  uint16_t *prev = prev1;
168  uint16_t *cur = cur1;
169  uint16_t *next = next1;
170  int x;
171  uint16_t *prev2 = parity ? prev : cur ;
172  uint16_t *next2 = parity ? cur : next;
173 
174  const int edge = MAX_ALIGN / 2 - 1;
175  int offset = FFMAX(w - edge, 3);
176 
177  mrefs /= 2;
178  prefs /= 2;
179 
180  FILTER(0, FFMIN(3, w), 0)
181 
182  dst = (uint16_t*)dst1 + offset;
183  prev = (uint16_t*)prev1 + offset;
184  cur = (uint16_t*)cur1 + offset;
185  next = (uint16_t*)next1 + offset;
186  prev2 = (uint16_t*)(parity ? prev : cur);
187  next2 = (uint16_t*)(parity ? cur : next);
188 
189  FILTER(offset, w - 3, 1)
190  offset = FFMAX(offset, w - 3);
191  FILTER(offset, w, 0)
192 }
193 
194 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
195 {
196  YADIFContext *s = ctx->priv;
197  ThreadData *td = arg;
198  int refs = s->cur->linesize[td->plane];
199  int df = (s->csp->comp[td->plane].depth + 7) / 8;
200  int pix_3 = 3 * df;
201  int slice_start = (td->h * jobnr ) / nb_jobs;
202  int slice_end = (td->h * (jobnr+1)) / nb_jobs;
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 = AV_CEIL_RSHIFT(w, yadif->csp->log2_chroma_w);
246  h = AV_CEIL_RSHIFT(h, yadif->csp->log2_chroma_h);
247  }
248 
249 
250  td.w = w;
251  td.h = h;
252  td.plane = i;
253 
255  }
256 
257  emms_c();
258 }
259 
261 {
262  YADIFContext *yadif = ctx->priv;
263 
264  av_frame_free(&yadif->prev);
265  av_frame_free(&yadif->cur );
266  av_frame_free(&yadif->next);
267 }
268 
270 {
271  static const enum AVPixelFormat pix_fmts[] = {
287  };
288 
290  if (!fmts_list)
291  return AVERROR(ENOMEM);
292  return ff_set_common_formats(ctx, fmts_list);
293 }
294 
295 static int config_output(AVFilterLink *outlink)
296 {
297  AVFilterContext *ctx = outlink->src;
298  YADIFContext *s = ctx->priv;
299 
300  outlink->time_base.num = ctx->inputs[0]->time_base.num;
301  outlink->time_base.den = ctx->inputs[0]->time_base.den * 2;
302  outlink->w = ctx->inputs[0]->w;
303  outlink->h = ctx->inputs[0]->h;
304 
305  if(s->mode & 1)
306  outlink->frame_rate = av_mul_q(ctx->inputs[0]->frame_rate,
307  (AVRational){2, 1});
308 
309  if (outlink->w < 3 || outlink->h < 3) {
310  av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
311  return AVERROR(EINVAL);
312  }
313 
314  s->csp = av_pix_fmt_desc_get(outlink->format);
315  s->filter = filter;
316  if (s->csp->comp[0].depth > 8) {
317  s->filter_line = filter_line_c_16bit;
318  s->filter_edges = filter_edges_16bit;
319  } else {
320  s->filter_line = filter_line_c;
321  s->filter_edges = filter_edges;
322  }
323 
324  if (ARCH_X86)
326 
327  return 0;
328 }
329 
330 
331 static const AVClass yadif_class = {
332  .class_name = "yadif",
333  .item_name = av_default_item_name,
334  .option = ff_yadif_options,
335  .version = LIBAVUTIL_VERSION_INT,
336  .category = AV_CLASS_CATEGORY_FILTER,
337 };
338 
340  {
341  .name = "default",
342  .type = AVMEDIA_TYPE_VIDEO,
343  .filter_frame = ff_yadif_filter_frame,
344  },
345  { NULL }
346 };
347 
349  {
350  .name = "default",
351  .type = AVMEDIA_TYPE_VIDEO,
352  .request_frame = ff_yadif_request_frame,
353  .config_props = config_output,
354  },
355  { NULL }
356 };
357 
359  .name = "yadif",
360  .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."),
361  .priv_size = sizeof(YADIFContext),
362  .priv_class = &yadif_class,
363  .uninit = uninit,
368 };
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define av_cold
Definition: attributes.h:88
uint8_t
simple assert() macros that are a bit more flexible than ISO C assert().
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
Main libavfilter public API header.
#define flags(name, subs,...)
Definition: cbs_av1.c:572
#define s(width, name)
Definition: cbs_vp9.c:257
common internal and external API header
#define FFMIN(a, b)
Definition: common.h:105
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define FFMAX(a, b)
Definition: common.h:103
#define ARCH_X86
Definition: config.h:39
#define NULL
Definition: coverity.c:32
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
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:587
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
#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: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:203
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
misc image utilities
int i
Definition: input.c:407
const char * arg
Definition: jacosubdec.c:66
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
#define emms_c()
Definition: internal.h:54
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
uint8_t w
Definition: llviddspenc.c:39
@ AV_CLASS_CATEGORY_FILTER
Definition: log.h:37
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2033
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:414
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:407
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
@ AV_PIX_FMT_YUVJ420P
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_YUV422P14
Definition: pixfmt.h:408
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
#define td
Definition: regdef.h:70
Describe the class of an AVClass context structure.
Definition: log.h:67
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:72
An instance of a filter.
Definition: avfilter.h:341
A list of supported formats for one end of a filter link.
Definition: formats.h:65
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1699
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
int width
Definition: frame.h:376
int height
Definition: frame.h:376
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int num
Numerator.
Definition: rational.h:59
int den
Denominator.
Definition: rational.h:60
Used for passing data between threads.
Definition: dsddec.c:67
int tff
Definition: vf_bwdif.c:57
int parity
Definition: vf_bwdif.c:56
AVFrame * frame
Definition: dsddec.c:68
int plane
Definition: vf_blend.c:58
AVFrame * prev
Definition: yadif.h:61
AVFrame * cur
Definition: yadif.h:59
AVFrame * next
Definition: yadif.h:60
const AVPixFmtDescriptor * csp
Definition: yadif.h:75
#define av_log(a,...)
AVFormatContext * ctx
Definition: movenc.c:48
mcdeint parity
Definition: vf_mcdeint.c:277
static const uint8_t offset[127][2]
Definition: vf_spp.c:107
#define df(A, B)
Definition: vf_xbr.c:90
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_yadif.c:194
AVFilter ff_vf_yadif
Definition: vf_yadif.c:358
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:163
static void filter(AVFilterContext *ctx, AVFrame *dstpic, int parity, int tff)
Definition: vf_yadif.c:233
#define MAX_ALIGN
Definition: vf_yadif.c:113
static int query_formats(AVFilterContext *ctx)
Definition: vf_yadif.c:269
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:145
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:94
#define FILTER(start, end, is_not_edge)
Definition: vf_yadif.c:52
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_yadif.c:260
static const AVFilterPad avfilter_vf_yadif_outputs[]
Definition: vf_yadif.c:348
static int config_output(AVFilterLink *outlink)
Definition: vf_yadif.c:295
static const AVFilterPad avfilter_vf_yadif_inputs[]
Definition: vf_yadif.c:339
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:114
static const AVClass yadif_class
Definition: vf_yadif.c:331
av_cold void ff_yadif_init_x86(YADIFContext *yadif)
Definition: vf_yadif_init.c:60
int ff_yadif_filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: yadif_common.c:92
int ff_yadif_request_frame(AVFilterLink *link)
Definition: yadif_common.c:159
const AVOption ff_yadif_options[]
Definition: yadif_common.c:198