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vf_floodfill.c
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1 /*
2  * Copyright (c) 2017 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/opt.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/intreadwrite.h"
24 #include "avfilter.h"
25 #include "formats.h"
26 #include "internal.h"
27 #include "video.h"
28 
29 typedef struct Points {
30  uint16_t x, y;
31 } Points;
32 
33 typedef struct FloodfillContext {
34  const AVClass *class;
35 
36  int x, y;
37  int s0, s1, s2, s3;
38  int d0, d1, d2, d3;
39 
40  int back, front;
41  Points *points;
42 
43  int (*is_same)(AVFrame *frame, int x, int y,
44  unsigned s0, unsigned s1, unsigned s2, unsigned s3);
45  void (*set_pixel)(AVFrame *frame, int x, int y,
46  unsigned d0, unsigned d1, unsigned d2, unsigned d3);
47  void (*pick_pixel)(AVFrame *frame, int x, int y,
48  int *s0, int *s1, int *s2, int *s3);
49 } FloodfillContext;
50 
51 static int is_inside(int x, int y, int w, int h)
52 {
53  if (x >= 0 && x < w && y >= 0 && y < h)
54  return 1;
55  return 0;
56 }
57 
58 static int is_same4(AVFrame *frame, int x, int y,
59  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
60 {
61  unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
62  unsigned c1 = frame->data[1][y * frame->linesize[1] + x];
63  unsigned c2 = frame->data[2][y * frame->linesize[2] + x];
64  unsigned c3 = frame->data[3][y * frame->linesize[3] + x];
65 
66  if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
67  return 1;
68  return 0;
69 }
70 
71 static int is_same4_16(AVFrame *frame, int x, int y,
72  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
73 {
74  unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
75  unsigned c1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
76  unsigned c2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
77  unsigned c3 = AV_RN16(frame->data[3] + y * frame->linesize[3] + 2 * x);
78 
79  if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
80  return 1;
81  return 0;
82 }
83 
84 static int is_same3(AVFrame *frame, int x, int y,
85  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
86 {
87  unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
88  unsigned c1 = frame->data[1][y * frame->linesize[1] + x];
89  unsigned c2 = frame->data[2][y * frame->linesize[2] + x];
90 
91  if (s0 == c0 && s1 == c1 && s2 == c2)
92  return 1;
93  return 0;
94 }
95 
96 static int is_same3_16(AVFrame *frame, int x, int y,
97  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
98 {
99  unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
100  unsigned c1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
101  unsigned c2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
102 
103  if (s0 == c0 && s1 == c1 && s2 == c2)
104  return 1;
105  return 0;
106 }
107 
108 static int is_same1(AVFrame *frame, int x, int y,
109  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
110 {
111  unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
112 
113  if (s0 == c0)
114  return 1;
115  return 0;
116 }
117 
118 static int is_same1_16(AVFrame *frame, int x, int y,
119  unsigned s0, unsigned s1, unsigned s2, unsigned s3)
120 {
121  unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
122 
123  if (s0 == c0)
124  return 1;
125  return 0;
126 }
127 
128 static void set_pixel1(AVFrame *frame, int x, int y,
129  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
130 {
131  frame->data[0][y * frame->linesize[0] + x] = d0;
132 }
133 
134 static void set_pixel1_16(AVFrame *frame, int x, int y,
135  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
136 {
137  AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
138 }
139 
140 static void set_pixel3(AVFrame *frame, int x, int y,
141  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
142 {
143  frame->data[0][y * frame->linesize[0] + x] = d0;
144  frame->data[1][y * frame->linesize[1] + x] = d1;
145  frame->data[2][y * frame->linesize[2] + x] = d2;
146 }
147 
148 static void set_pixel3_16(AVFrame *frame, int x, int y,
149  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
150 {
151  AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
152  AV_WN16(frame->data[1] + y * frame->linesize[1] + 2 * x, d1);
153  AV_WN16(frame->data[2] + y * frame->linesize[2] + 2 * x, d2);
154 }
155 
156 static void set_pixel4(AVFrame *frame, int x, int y,
157  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
158 {
159  frame->data[0][y * frame->linesize[0] + x] = d0;
160  frame->data[1][y * frame->linesize[1] + x] = d1;
161  frame->data[2][y * frame->linesize[2] + x] = d2;
162  frame->data[3][y * frame->linesize[3] + x] = d3;
163 }
164 
165 static void set_pixel4_16(AVFrame *frame, int x, int y,
166  unsigned d0, unsigned d1, unsigned d2, unsigned d3)
167 {
168  AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
169  AV_WN16(frame->data[1] + y * frame->linesize[1] + 2 * x, d1);
170  AV_WN16(frame->data[2] + y * frame->linesize[2] + 2 * x, d2);
171  AV_WN16(frame->data[3] + y * frame->linesize[3] + 2 * x, d3);
172 }
173 
174 static void pick_pixel1(AVFrame *frame, int x, int y,
175  int *s0, int *s1, int *s2, int *s3)
176 {
177  if (*s0 < 0)
178  *s0 = frame->data[0][y * frame->linesize[0] + x];
179 }
180 
181 static void pick_pixel1_16(AVFrame *frame, int x, int y,
182  int *s0, int *s1, int *s2, int *s3)
183 {
184  if (*s0 < 0)
185  *s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
186 }
187 
188 static void pick_pixel3(AVFrame *frame, int x, int y,
189  int *s0, int *s1, int *s2, int *s3)
190 {
191  if (*s0 < 0)
192  *s0 = frame->data[0][y * frame->linesize[0] + x];
193  if (*s1 < 0)
194  *s1 = frame->data[1][y * frame->linesize[1] + x];
195  if (*s2 < 0)
196  *s2 = frame->data[2][y * frame->linesize[2] + x];
197 }
198 
199 static void pick_pixel3_16(AVFrame *frame, int x, int y,
200  int *s0, int *s1, int *s2, int *s3)
201 {
202  if (*s0 < 0)
203  *s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
204  if (*s1 < 0)
205  *s1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
206  if (*s2 < 0)
207  *s2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
208 }
209 
210 static void pick_pixel4(AVFrame *frame, int x, int y,
211  int *s0, int *s1, int *s2, int *s3)
212 {
213  if (*s0 < 0)
214  *s0 = frame->data[0][y * frame->linesize[0] + x];
215  if (*s1 < 0)
216  *s1 = frame->data[1][y * frame->linesize[1] + x];
217  if (*s2 < 0)
218  *s2 = frame->data[2][y * frame->linesize[2] + x];
219  if (*s3 < 0)
220  *s3 = frame->data[3][y * frame->linesize[3] + x];
221 }
222 
223 static void pick_pixel4_16(AVFrame *frame, int x, int y,
224  int *s0, int *s1, int *s2, int *s3)
225 {
226  if (*s0 < 0)
227  *s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
228  if (*s1 < 0)
229  *s1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
230  if (*s2 < 0)
231  *s2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
232  if (*s3 < 0)
233  *s3 = AV_RN16(frame->data[3] + y * frame->linesize[3] + 2 * x);
234 }
235 
236 static int config_input(AVFilterLink *inlink)
237 {
238  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
239  AVFilterContext *ctx = inlink->dst;
240  FloodfillContext *s = ctx->priv;
241  int nb_planes = av_pix_fmt_count_planes(inlink->format);
242  int depth;
243 
244  depth = desc->comp[0].depth;
245  if (depth == 8) {
246  switch (nb_planes) {
247  case 1: s->set_pixel = set_pixel1;
248  s->is_same = is_same1;
249  s->pick_pixel = pick_pixel1; break;
250  case 3: s->set_pixel = set_pixel3;
251  s->is_same = is_same3;
252  s->pick_pixel = pick_pixel3; break;
253  case 4: s->set_pixel = set_pixel4;
254  s->is_same = is_same4;
255  s->pick_pixel = pick_pixel4; break;
256  }
257  } else {
258  switch (nb_planes) {
259  case 1: s->set_pixel = set_pixel1_16;
260  s->is_same = is_same1_16;
261  s->pick_pixel = pick_pixel1_16; break;
262  case 3: s->set_pixel = set_pixel3_16;
263  s->is_same = is_same3_16;
264  s->pick_pixel = pick_pixel3_16; break;
265  case 4: s->set_pixel = set_pixel4_16;
266  s->is_same = is_same4_16;
267  s->pick_pixel = pick_pixel4_16; break;
268  }
269  }
270 
271  s->front = s->back = 0;
272  s->points = av_calloc(inlink->w * inlink->h, 4 * sizeof(Points));
273  if (!s->points)
274  return AVERROR(ENOMEM);
275 
276  return 0;
277 }
278 
279 static int filter_frame(AVFilterLink *link, AVFrame *frame)
280 {
281  AVFilterContext *ctx = link->dst;
282  FloodfillContext *s = ctx->priv;
283  const unsigned d0 = s->d0;
284  const unsigned d1 = s->d1;
285  const unsigned d2 = s->d2;
286  const unsigned d3 = s->d3;
287  int s0 = s->s0;
288  int s1 = s->s1;
289  int s2 = s->s2;
290  int s3 = s->s3;
291  const int w = frame->width;
292  const int h = frame->height;
293  int ret;
294 
295  if (ret = av_frame_make_writable(frame))
296  return ret;
297 
298  if (is_inside(s->x, s->y, w, h)) {
299  s->pick_pixel(frame, s->x, s->y, &s0, &s1, &s2, &s3);
300 
301  if (s->is_same(frame, s->x, s->y, s0, s1, s2, s3)) {
302  s->points[s->front].x = s->x;
303  s->points[s->front].y = s->y;
304  s->front++;
305  }
306 
307  while (s->front > s->back) {
308  int x, y;
309 
310  s->front--;
311  x = s->points[s->front].x;
312  y = s->points[s->front].y;
313 
314  if (s->is_same(frame, x, y, s0, s1, s2, s3)) {
315  s->set_pixel(frame, x, y, d0, d1, d2, d3);
316 
317  if (is_inside(x + 1, y, w, h)) {
318  s->points[s->front] .x = x + 1;
319  s->points[s->front++].y = y;
320  }
321 
322  if (is_inside(x - 1, y, w, h)) {
323  s->points[s->front] .x = x - 1;
324  s->points[s->front++].y = y;
325  }
326 
327  if (is_inside(x, y + 1, w, h)) {
328  s->points[s->front] .x = x;
329  s->points[s->front++].y = y + 1;
330  }
331 
332  if (is_inside(x, y - 1, w, h)) {
333  s->points[s->front] .x = x;
334  s->points[s->front++].y = y - 1;
335  }
336  }
337  }
338  }
339 
340  return ff_filter_frame(ctx->outputs[0], frame);
341 }
342 
343 static av_cold int query_formats(AVFilterContext *ctx)
344 {
345  static const enum AVPixelFormat pixel_fmts[] = {
346  AV_PIX_FMT_GRAY8,
347  AV_PIX_FMT_YUV444P,
348  AV_PIX_FMT_YUVA444P,
349  AV_PIX_FMT_GBRP,
350  AV_PIX_FMT_GBRP9,
351  AV_PIX_FMT_GBRP10,
352  AV_PIX_FMT_GBRAP10,
353  AV_PIX_FMT_GBRP12,
354  AV_PIX_FMT_GBRAP12,
355  AV_PIX_FMT_GBRP14,
356  AV_PIX_FMT_GBRP16,
357  AV_PIX_FMT_GBRAP16,
358  AV_PIX_FMT_GBRAP,
359  AV_PIX_FMT_YUV444P9,
360  AV_PIX_FMT_YUVA444P9,
361  AV_PIX_FMT_YUV444P10,
362  AV_PIX_FMT_YUVA444P10,
363  AV_PIX_FMT_YUV444P12,
364  AV_PIX_FMT_YUV444P14,
365  AV_PIX_FMT_GRAY16,
366  AV_PIX_FMT_YUV444P16,
367  AV_PIX_FMT_YUVA444P16,
368  AV_PIX_FMT_NONE
369  };
370  AVFilterFormats *formats;
371 
372  formats = ff_make_format_list(pixel_fmts);
373  if (!formats)
374  return AVERROR(ENOMEM);
375 
376  return ff_set_common_formats(ctx, formats);
377 }
378 
379 static av_cold void uninit(AVFilterContext *ctx)
380 {
381  FloodfillContext *s = ctx->priv;
382 
383  av_freep(&s->points);
384 }
385 
386 static const AVFilterPad floodfill_inputs[] = {
387  {
388  .name = "default",
389  .type = AVMEDIA_TYPE_VIDEO,
390  .filter_frame = filter_frame,
391  .config_props = config_input,
392  },
393  { NULL }
394 };
395 
396 static const AVFilterPad floodfill_outputs[] = {
397  {
398  .name = "default",
399  .type = AVMEDIA_TYPE_VIDEO,
400  },
401  { NULL }
402 };
403 
404 #define OFFSET(x) offsetof(FloodfillContext, x)
405 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
406 
407 static const AVOption floodfill_options[] = {
408  { "x", "set pixel x coordinate", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
409  { "y", "set pixel y coordinate", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
410  { "s0", "set source #0 component value", OFFSET(s0), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
411  { "s1", "set source #1 component value", OFFSET(s1), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
412  { "s2", "set source #2 component value", OFFSET(s2), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
413  { "s3", "set source #3 component value", OFFSET(s3), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
414  { "d0", "set destination #0 component value", OFFSET(d0), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
415  { "d1", "set destination #1 component value", OFFSET(d1), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
416  { "d2", "set destination #2 component value", OFFSET(d2), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
417  { "d3", "set destination #3 component value", OFFSET(d3), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
418  { NULL }
419 };
420 
421 AVFILTER_DEFINE_CLASS(floodfill);
422 
423 AVFilter ff_vf_floodfill = {
424  .name = "floodfill",
425  .description = NULL_IF_CONFIG_SMALL("Fill area with same color with another color."),
426  .priv_size = sizeof(FloodfillContext),
427  .priv_class = &floodfill_class,
428  .query_formats = query_formats,
429  .uninit = uninit,
430  .inputs = floodfill_inputs,
431  .outputs = floodfill_outputs,
432  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
433 };
NULL
#define NULL
Definition: coverity.c:32
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2446
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226
h
h
Definition: vp9dsp_template.c:2038
AVOption
AVOption.
Definition: opt.h:246
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:389
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:399
ff_vf_floodfill
AVFilter ff_vf_floodfill
Definition: vf_floodfill.c:423
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
imgutils.h
misc image utilities
floodfill_outputs
static const AVFilterPad floodfill_outputs[]
Definition: vf_floodfill.c:396
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2486
avfilter.h
Main libavfilter public API header.
desc
const char * desc
Definition: nvenc.c:65
AV_OPT_TYPE_INT
Definition: opt.h:223
AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:395
is_inside
static int is_inside(int x, int y, int w, int h)
Definition: vf_floodfill.c:51
pick_pixel4_16
static void pick_pixel4_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:223
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:244
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
is_same1_16
static int is_same1_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:118
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
av_cold
#define av_cold
Definition: attributes.h:82
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_floodfill.c:236
opt.h
AVOptions.
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:394
frame
static AVFrame * frame
Definition: demuxing_decoding.c:53
c1
static const uint64_t c1
Definition: murmur3.c:49
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:392
pick_pixel3_16
static void pick_pixel3_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:199
is_same4
static int is_same4(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:58
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
AVFrame::width
int width
Definition: frame.h:284
ff_set_common_formats
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
s2
#define s2
Definition: regdef.h:39
AVERROR
#define AVERROR(e)
Definition: error.h:43
set_pixel4_16
static void set_pixel4_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:165
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:353
s0
#define s0
Definition: regdef.h:37
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:421
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:400
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
set_pixel4
static void set_pixel4(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:156
pick_pixel1
static void pick_pixel1(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:174
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:401
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:398
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:363
FLAGS
#define FLAGS
Definition: vf_floodfill.c:405
is_same3_16
static int is_same3_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:96
w
uint8_t w
Definition: llviddspenc.c:38
void
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
FloodfillContext::pick_pixel
void(* pick_pixel)(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:47
ctx
AVFormatContext * ctx
Definition: movenc.c:48
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:418
FloodfillContext::is_same
int(* is_same)(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:43
inputs
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:378
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:397
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(floodfill)
s3
#define s3
Definition: regdef.h:40
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: vf_floodfill.c:279
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AV_RN16
#define AV_RN16(p)
Definition: intreadwrite.h:360
set_pixel1
static void set_pixel1(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:128
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AVFilter
Filter definition.
Definition: avfilter.h:144
Points::x
uint16_t x
Definition: vf_floodfill.c:30
is_same3
static int is_same3(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:84
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
s1
#define s1
Definition: regdef.h:38
OFFSET
#define OFFSET(x)
Definition: vf_floodfill.c:404
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:396
av_frame_make_writable
int av_frame_make_writable(AVFrame *frame)
Ensure that the frame data is writable, avoiding data copy if possible.
Definition: frame.c:611
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:596
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:386
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240
is_same4_16
static int is_same4_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:71
set_pixel3
static void set_pixel3(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:140
int
int
Definition: ffmpeg_filter.c:191
pick_pixel1_16
static void pick_pixel1_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:181
AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
pick_pixel4
static void pick_pixel4(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:210
AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:415
c2
static const uint64_t c2
Definition: murmur3.c:50
pick_pixel3
static void pick_pixel3(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
Definition: vf_floodfill.c:188
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
AVFrame::height
int height
Definition: frame.h:284
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:372
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
floodfill_options
static const AVOption floodfill_options[]
Definition: vf_floodfill.c:407
Points::y
uint16_t y
Definition: vf_floodfill.c:30
is_same1
static int is_same1(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
Definition: vf_floodfill.c:108
formats
formats
Definition: signature.h:48
floodfill_inputs
static const AVFilterPad floodfill_inputs[]
Definition: vf_floodfill.c:386
internal.h
internal API functions
FloodfillContext::set_pixel
void(* set_pixel)(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:45
set_pixel1_16
static void set_pixel1_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:134
set_pixel3_16
static void set_pixel3_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Definition: vf_floodfill.c:148
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
query_formats
static av_cold int query_formats(AVFilterContext *ctx)
Definition: vf_floodfill.c:343
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_floodfill.c:379
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