FFmpeg
vf_dedot.c
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1 /*
2  * Copyright (c) 2018 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/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 
25 #include "avfilter.h"
26 #include "filters.h"
27 #include "formats.h"
28 #include "internal.h"
29 #include "video.h"
30 
31 typedef struct DedotContext {
32  const AVClass *class;
33  int m;
34  float lt;
35  float tl;
36  float tc;
37  float ct;
38 
40  int depth;
41  int max;
42  int luma2d;
43  int lumaT;
44  int chromaT1;
45  int chromaT2;
46 
47  int eof;
49  int nb_planes;
50  int planewidth[4];
51  int planeheight[4];
52 
54 
55  int (*dedotcrawl)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
56  int (*derainbow)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
57 } DedotContext;
58 
59 static const enum AVPixelFormat pixel_fmts[] = {
75 };
76 
77 #define DEFINE_DEDOTCRAWL(name, type, div) \
78 static int dedotcrawl##name(AVFilterContext *ctx, void *arg, \
79  int jobnr, int nb_jobs) \
80 { \
81  DedotContext *s = ctx->priv; \
82  AVFrame *out = arg; \
83  int src_linesize = s->frames[2]->linesize[0] / div; \
84  int dst_linesize = out->linesize[0] / div; \
85  int p0_linesize = s->frames[0]->linesize[0] / div; \
86  int p1_linesize = s->frames[1]->linesize[0] / div; \
87  int p3_linesize = s->frames[3]->linesize[0] / div; \
88  int p4_linesize = s->frames[4]->linesize[0] / div; \
89  const int h = s->planeheight[0]; \
90  int slice_start = (h * jobnr) / nb_jobs; \
91  int slice_end = (h * (jobnr+1)) / nb_jobs; \
92  type *p0 = (type *)s->frames[0]->data[0]; \
93  type *p1 = (type *)s->frames[1]->data[0]; \
94  type *p3 = (type *)s->frames[3]->data[0]; \
95  type *p4 = (type *)s->frames[4]->data[0]; \
96  type *src = (type *)s->frames[2]->data[0]; \
97  type *dst = (type *)out->data[0]; \
98  const int luma2d = s->luma2d; \
99  const int lumaT = s->lumaT; \
100  \
101  if (!slice_start) { \
102  slice_start++; \
103  } \
104  p0 += p0_linesize * slice_start; \
105  p1 += p1_linesize * slice_start; \
106  p3 += p3_linesize * slice_start; \
107  p4 += p4_linesize * slice_start; \
108  src += src_linesize * slice_start; \
109  dst += dst_linesize * slice_start; \
110  if (slice_end == h) { \
111  slice_end--; \
112  } \
113  for (int y = slice_start; y < slice_end; y++) { \
114  for (int x = 1; x < s->planewidth[0] - 1; x++) { \
115  int above = src[x - src_linesize]; \
116  int bellow = src[x + src_linesize]; \
117  int cur = src[x]; \
118  int left = src[x - 1]; \
119  int right = src[x + 1]; \
120  \
121  if (FFABS(above + bellow - 2 * cur) <= luma2d && \
122  FFABS(left + right - 2 * cur) <= luma2d) \
123  continue; \
124  \
125  if (FFABS(cur - p0[x]) <= lumaT && \
126  FFABS(cur - p4[x]) <= lumaT && \
127  FFABS(p1[x] - p3[x]) <= lumaT) { \
128  int diff1 = FFABS(cur - p1[x]); \
129  int diff2 = FFABS(cur - p3[x]); \
130  \
131  if (diff1 < diff2) \
132  dst[x] = (src[x] + p1[x] + 1) >> 1; \
133  else \
134  dst[x] = (src[x] + p3[x] + 1) >> 1; \
135  } \
136  } \
137  \
138  dst += dst_linesize; \
139  src += src_linesize; \
140  p0 += p0_linesize; \
141  p1 += p1_linesize; \
142  p3 += p3_linesize; \
143  p4 += p4_linesize; \
144  } \
145  return 0; \
146 }
147 
148 DEFINE_DEDOTCRAWL(8, uint8_t, 1)
149 DEFINE_DEDOTCRAWL(16, uint16_t, 2)
150 
151 typedef struct ThreadData {
152  AVFrame *out;
153  int plane;
154 } ThreadData;
155 
156 #define DEFINE_DERAINBOW(name, type, div) \
157 static int derainbow##name(AVFilterContext *ctx, void *arg, \
158  int jobnr, int nb_jobs) \
159 { \
160  DedotContext *s = ctx->priv; \
161  ThreadData *td = arg; \
162  AVFrame *out = td->out; \
163  const int plane = td->plane; \
164  const int h = s->planeheight[plane]; \
165  int slice_start = (h * jobnr) / nb_jobs; \
166  int slice_end = (h * (jobnr+1)) / nb_jobs; \
167  int src_linesize = s->frames[2]->linesize[plane] / div; \
168  int dst_linesize = out->linesize[plane] / div; \
169  int p0_linesize = s->frames[0]->linesize[plane] / div; \
170  int p1_linesize = s->frames[1]->linesize[plane] / div; \
171  int p3_linesize = s->frames[3]->linesize[plane] / div; \
172  int p4_linesize = s->frames[4]->linesize[plane] / div; \
173  type *p0 = (type *)s->frames[0]->data[plane]; \
174  type *p1 = (type *)s->frames[1]->data[plane]; \
175  type *p3 = (type *)s->frames[3]->data[plane]; \
176  type *p4 = (type *)s->frames[4]->data[plane]; \
177  type *src = (type *)s->frames[2]->data[plane]; \
178  type *dst = (type *)out->data[plane]; \
179  const int chromaT1 = s->chromaT1; \
180  const int chromaT2 = s->chromaT2; \
181  \
182  p0 += slice_start * p0_linesize; \
183  p1 += slice_start * p1_linesize; \
184  p3 += slice_start * p3_linesize; \
185  p4 += slice_start * p4_linesize; \
186  src += slice_start * src_linesize; \
187  dst += slice_start * dst_linesize; \
188  for (int y = slice_start; y < slice_end; y++) { \
189  for (int x = 0; x < s->planewidth[plane]; x++) { \
190  int cur = src[x]; \
191  \
192  if (FFABS(cur - p0[x]) <= chromaT1 && \
193  FFABS(cur - p4[x]) <= chromaT1 && \
194  FFABS(p1[x] - p3[x]) <= chromaT1 && \
195  FFABS(cur - p1[x]) > chromaT2 && \
196  FFABS(cur - p3[x]) > chromaT2) { \
197  int diff1 = FFABS(cur - p1[x]); \
198  int diff2 = FFABS(cur - p3[x]); \
199  \
200  if (diff1 < diff2) \
201  dst[x] = (src[x] + p1[x] + 1) >> 1; \
202  else \
203  dst[x] = (src[x] + p3[x] + 1) >> 1; \
204  } \
205  } \
206  \
207  dst += dst_linesize; \
208  src += src_linesize; \
209  p0 += p0_linesize; \
210  p1 += p1_linesize; \
211  p3 += p3_linesize; \
212  p4 += p4_linesize; \
213  } \
214  return 0; \
215 }
216 
217 DEFINE_DERAINBOW(8, uint8_t, 1)
218 DEFINE_DERAINBOW(16, uint16_t, 2)
219 
220 static int config_output(AVFilterLink *outlink)
221 {
222  AVFilterContext *ctx = outlink->src;
223  DedotContext *s = ctx->priv;
224  AVFilterLink *inlink = ctx->inputs[0];
225 
226  s->desc = av_pix_fmt_desc_get(outlink->format);
227  if (!s->desc)
228  return AVERROR_BUG;
229  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
230  s->depth = s->desc->comp[0].depth;
231  s->max = (1 << s->depth) - 1;
232  s->luma2d = s->lt * s->max;
233  s->lumaT = s->tl * s->max;
234  s->chromaT1 = s->tc * s->max;
235  s->chromaT2 = s->ct * s->max;
236 
237  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w);
238  s->planewidth[0] = s->planewidth[3] = inlink->w;
239 
240  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
241  s->planeheight[0] = s->planeheight[3] = inlink->h;
242 
243  if (s->depth <= 8) {
244  s->dedotcrawl = dedotcrawl8;
245  s->derainbow = derainbow8;
246  } else {
247  s->dedotcrawl = dedotcrawl16;
248  s->derainbow = derainbow16;
249  }
250 
251  return 0;
252 }
253 
255 {
256  AVFilterLink *inlink = ctx->inputs[0];
257  AVFilterLink *outlink = ctx->outputs[0];
258  DedotContext *s = ctx->priv;
259  AVFrame *frame = NULL;
260  int64_t pts;
261  int status;
262  int ret = 0;
263 
265 
266  if (s->eof == 0) {
268  if (ret < 0)
269  return ret;
270  }
271  if (frame || s->eof_frames > 0) {
272  AVFrame *out = NULL;
273 
274  if (frame) {
275  for (int i = 2; i < 5; i++) {
276  if (!s->frames[i])
277  s->frames[i] = av_frame_clone(frame);
278  }
280  } else if (s->frames[3]) {
281  s->eof_frames--;
282  s->frames[4] = av_frame_clone(s->frames[3]);
283  }
284 
285  if (s->frames[0] &&
286  s->frames[1] &&
287  s->frames[2] &&
288  s->frames[3] &&
289  s->frames[4]) {
290  out = av_frame_clone(s->frames[2]);
291  if (out && !ctx->is_disabled) {
293  if (ret >= 0) {
294  if (s->m & 1)
295  ff_filter_execute(ctx, s->dedotcrawl, out, NULL,
297  s->planeheight[0]));
298  if (s->m & 2) {
299  ThreadData td;
300  td.out = out; td.plane = 1;
301  ff_filter_execute(ctx, s->derainbow, &td, NULL,
303  s->planeheight[1]));
304  td.plane = 2;
305  ff_filter_execute(ctx, s->derainbow, &td, NULL,
307  s->planeheight[2]));
308  }
309  } else
310  av_frame_free(&out);
311  } else if (!out) {
312  ret = AVERROR(ENOMEM);
313  }
314  }
315 
316  av_frame_free(&s->frames[0]);
317  s->frames[0] = s->frames[1];
318  s->frames[1] = s->frames[2];
319  s->frames[2] = s->frames[3];
320  s->frames[3] = s->frames[4];
321  s->frames[4] = NULL;
322 
323  if (ret < 0)
324  return ret;
325  if (out)
326  return ff_filter_frame(outlink, out);
327  }
328 
329  if (s->eof) {
330  if (s->eof_frames <= 0) {
331  ff_outlink_set_status(outlink, AVERROR_EOF, s->frames[2]->pts);
332  } else {
334  }
335  return 0;
336  }
337 
338  if (!s->eof && ff_inlink_acknowledge_status(inlink, &status, &pts)) {
339  if (status == AVERROR_EOF) {
340  s->eof = 1;
341  s->eof_frames = !!s->frames[0] + !!s->frames[1];
342  if (s->eof_frames <= 0) {
344  return 0;
345  }
347  return 0;
348  }
349  }
350 
352 
353  return FFERROR_NOT_READY;
354 }
355 
357 {
358  DedotContext *s = ctx->priv;
359 
360  for (int i = 0; i < 5; i++)
361  av_frame_free(&s->frames[i]);
362 }
363 
364 #define OFFSET(x) offsetof(DedotContext, x)
365 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
366 
367 static const AVOption dedot_options[] = {
368  { "m", "set filtering mode", OFFSET( m), AV_OPT_TYPE_FLAGS, {.i64=3}, 0, 3, FLAGS, "m" },
369  { "dotcrawl", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "m" },
370  { "rainbows", 0, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "m" },
371  { "lt", "set spatial luma threshold", OFFSET(lt), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
372  { "tl", "set tolerance for temporal luma", OFFSET(tl), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
373  { "tc", "set tolerance for chroma temporal variation", OFFSET(tc), AV_OPT_TYPE_FLOAT, {.dbl=.058}, 0, 1, FLAGS },
374  { "ct", "set temporal chroma threshold", OFFSET(ct), AV_OPT_TYPE_FLOAT, {.dbl=.019}, 0, 1, FLAGS },
375  { NULL },
376 };
377 
378 static const AVFilterPad inputs[] = {
379  {
380  .name = "default",
381  .type = AVMEDIA_TYPE_VIDEO,
382  },
383 };
384 
385 static const AVFilterPad outputs[] = {
386  {
387  .name = "default",
388  .type = AVMEDIA_TYPE_VIDEO,
389  .config_props = config_output,
390  },
391 };
392 
393 AVFILTER_DEFINE_CLASS(dedot);
394 
396  .name = "dedot",
397  .description = NULL_IF_CONFIG_SMALL("Reduce cross-luminance and cross-color."),
398  .priv_size = sizeof(DedotContext),
399  .priv_class = &dedot_class,
400  .activate = activate,
401  .uninit = uninit,
406 };
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:434
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
DedotContext
Definition: vf_dedot.c:31
AVERROR
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
ff_vf_dedot
const AVFilter ff_vf_dedot
Definition: vf_dedot.c:395
opt.h
outputs
static const AVFilterPad outputs[]
Definition: vf_dedot.c:385
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2564
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
FFERROR_NOT_READY
return FFERROR_NOT_READY
Definition: filter_design.txt:204
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
DedotContext::depth
int depth
Definition: vf_dedot.c:40
inlink
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
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
DedotContext::nb_planes
int nb_planes
Definition: vf_dedot.c:49
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:426
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
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:490
pixdesc.h
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:433
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:428
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_dedot.c:220
AVOption
AVOption.
Definition: opt.h:247
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:391
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
video.h
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:429
FF_FILTER_FORWARD_STATUS_BACK
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition: filters.h:199
formats.h
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1417
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2604
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:425
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(dedot)
DedotContext::max
int max
Definition: vf_dedot.c:41
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:435
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:389
DedotContext::lumaT
int lumaT
Definition: vf_dedot.c:43
pts
static int64_t pts
Definition: transcode_aac.c:653
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:394
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:248
av_cold
#define av_cold
Definition: attributes.h:90
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:403
AV_PIX_FMT_YUVJ422P
@ 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
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_YUVA420P
@ 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_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:404
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
DedotContext::desc
const AVPixFmtDescriptor * desc
Definition: vf_dedot.c:39
DedotContext::chromaT1
int chromaT1
Definition: vf_dedot.c:44
filters.h
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:432
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:388
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:402
ctx
AVFormatContext * ctx
Definition: movenc.c:48
av_frame_clone
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:424
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
DedotContext::chromaT2
int chromaT2
Definition: vf_dedot.c:45
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
DedotContext::ct
float ct
Definition: vf_dedot.c:37
AV_PIX_FMT_YUVJ444P
@ 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
arg
const char * arg
Definition: jacosubdec.c:67
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
AV_PIX_FMT_YUVJ420P
@ 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_DEDOTCRAWL
#define DEFINE_DEDOTCRAWL(name, type, div)
Definition: vf_dedot.c:77
DedotContext::planeheight
int planeheight[4]
Definition: vf_dedot.c:51
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:392
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1371
DedotContext::derainbow
int(* derainbow)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_dedot.c:56
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:117
DedotContext::dedotcrawl
int(* dedotcrawl)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_dedot.c:55
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dedot.c:356
DedotContext::planewidth
int planewidth[4]
Definition: vf_dedot.c:50
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:396
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:398
FLAGS
#define FLAGS
Definition: vf_dedot.c:365
DedotContext::eof_frames
int eof_frames
Definition: vf_dedot.c:48
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:430
FF_FILTER_FORWARD_WANTED
FF_FILTER_FORWARD_WANTED(outlink, inlink)
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_dedot.c:59
internal.h
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
DedotContext::luma2d
int luma2d
Definition: vf_dedot.c:42
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:803
ThreadData
Used for passing data between threads.
Definition: dsddec.c:67
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_PIX_FMT_YUVJ440P
@ 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
DedotContext::tc
float tc
Definition: vf_dedot.c:36
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:390
DEFINE_DERAINBOW
#define DEFINE_DERAINBOW(name, type, div)
Definition: vf_dedot.c:156
AVFilter
Filter definition.
Definition: avfilter.h:149
DedotContext::frames
AVFrame * frames[5]
Definition: vf_dedot.c:53
DedotContext::tl
float tl
Definition: vf_dedot.c:35
ret
ret
Definition: filter_design.txt:187
frame
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
Definition: filter_design.txt:264
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:427
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:395
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:400
OFFSET
#define OFFSET(x)
Definition: vf_dedot.c:364
DedotContext::eof
int eof
Definition: vf_dedot.c:47
DedotContext::m
int m
Definition: vf_dedot.c:33
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:431
avfilter.h
dedot_options
static const AVOption dedot_options[]
Definition: vf_dedot.c:367
DedotContext::lt
float lt
Definition: vf_dedot.c:34
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:386
tc
#define tc
Definition: regdef.h:69
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Definition: opt.h:223
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#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:138
imgutils.h
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
activate
static int activate(AVFilterContext *ctx)
Definition: vf_dedot.c:254
AV_PIX_FMT_YUV410P
@ 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_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:397
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:401
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:143
int
int
Definition: ffmpeg_filter.c:156
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
inputs
static const AVFilterPad inputs[]
Definition: vf_dedot.c:378
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:399
ff_filter_set_ready
void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
Mark a filter ready and schedule it for activation.
Definition: avfilter.c:211