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vf_datascope.c
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1 /*
2  * Copyright (c) 2016 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/avassert.h"
22 #include "libavutil/intreadwrite.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/parseutils.h"
25 #include "libavutil/pixdesc.h"
26 #include "libavutil/xga_font_data.h"
27 #include "avfilter.h"
28 #include "drawutils.h"
29 #include "formats.h"
30 #include "internal.h"
31 #include "video.h"
32 
33 typedef struct DatascopeContext {
34  const AVClass *class;
35  int ow, oh;
36  int x, y;
37  int mode;
38  int axis;
39  float opacity;
40 
41  int nb_planes;
42  int nb_comps;
43  int chars;
44  FFDrawContext draw;
45  FFDrawColor yellow;
46  FFDrawColor white;
47  FFDrawColor black;
48  FFDrawColor gray;
49 
50  void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
51  void (*reverse_color)(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse);
52  int (*filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
53 } DatascopeContext;
54 
55 #define OFFSET(x) offsetof(DatascopeContext, x)
56 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
57 
58 static const AVOption datascope_options[] = {
59  { "size", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
60  { "s", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
61  { "x", "set x offset", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
62  { "y", "set y offset", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
63  { "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mode" },
64  { "mono", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
65  { "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
66  { "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode" },
67  { "axis", "draw column/row numbers", OFFSET(axis), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
68  { "opacity", "set background opacity", OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=0.75}, 0, 1, FLAGS },
69  { NULL }
70 };
71 
72 AVFILTER_DEFINE_CLASS(datascope);
73 
74 static int query_formats(AVFilterContext *ctx)
75 {
76  return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
77 }
78 
79 static void draw_text(FFDrawContext *draw, AVFrame *frame, FFDrawColor *color,
80  int x0, int y0, const uint8_t *text, int vertical)
81 {
82  int x = x0;
83 
84  for (; *text; text++) {
85  if (*text == '\n') {
86  x = x0;
87  y0 += 8;
88  continue;
89  }
90  ff_blend_mask(draw, color, frame->data, frame->linesize,
91  frame->width, frame->height,
92  avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
93  if (vertical) {
94  x = x0;
95  y0 += 8;
96  } else {
97  x += 8;
98  }
99  }
100 }
101 
102 static void pick_color8(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
103 {
104  int p, i;
105 
106  color->rgba[3] = 255;
107  for (p = 0; p < draw->nb_planes; p++) {
108  if (draw->nb_planes == 1) {
109  for (i = 0; i < 4; i++) {
110  value[i] = in->data[0][y * in->linesize[0] + x * draw->pixelstep[0] + i];
111  color->comp[0].u8[i] = value[i];
112  }
113  } else {
114  value[p] = in->data[p][(y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p])];
115  color->comp[p].u8[0] = value[p];
116  }
117  }
118 }
119 
120 static void pick_color16(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
121 {
122  int p, i;
123 
124  color->rgba[3] = 255;
125  for (p = 0; p < draw->nb_planes; p++) {
126  if (draw->nb_planes == 1) {
127  for (i = 0; i < 4; i++) {
128  value[i] = AV_RL16(in->data[0] + y * in->linesize[0] + x * draw->pixelstep[0] + i * 2);
129  color->comp[0].u16[i] = value[i];
130  }
131  } else {
132  value[p] = AV_RL16(in->data[p] + (y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p]) * 2);
133  color->comp[p].u16[0] = value[p];
134  }
135  }
136 }
137 
138 static void reverse_color8(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
139 {
140  int p;
141 
142  reverse->rgba[3] = 255;
143  for (p = 0; p < draw->nb_planes; p++) {
144  reverse->comp[p].u8[0] = color->comp[p].u8[0] > 127 ? 0 : 255;
145  reverse->comp[p].u8[1] = color->comp[p].u8[1] > 127 ? 0 : 255;
146  reverse->comp[p].u8[2] = color->comp[p].u8[2] > 127 ? 0 : 255;
147  }
148 }
149 
150 static void reverse_color16(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
151 {
152  int p;
153 
154  reverse->rgba[3] = 255;
155  for (p = 0; p < draw->nb_planes; p++) {
156  const unsigned max = (1 << draw->desc->comp[p].depth) - 1;
157  const unsigned mid = (max + 1) / 2;
158 
159  reverse->comp[p].u16[0] = color->comp[p].u16[0] > mid ? 0 : max;
160  reverse->comp[p].u16[1] = color->comp[p].u16[1] > mid ? 0 : max;
161  reverse->comp[p].u16[2] = color->comp[p].u16[2] > mid ? 0 : max;
162  }
163 }
164 
165 typedef struct ThreadData {
166  AVFrame *in, *out;
167  int xoff, yoff;
168 } ThreadData;
169 
170 static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
171 {
172  DatascopeContext *s = ctx->priv;
173  AVFilterLink *outlink = ctx->outputs[0];
174  AVFilterLink *inlink = ctx->inputs[0];
175  ThreadData *td = arg;
176  AVFrame *in = td->in;
177  AVFrame *out = td->out;
178  const int xoff = td->xoff;
179  const int yoff = td->yoff;
180  const int P = FFMAX(s->nb_planes, s->nb_comps);
181  const int C = s->chars;
182  const int W = (outlink->w - xoff) / (C * 10);
183  const int H = (outlink->h - yoff) / (P * 12);
184  const char *format[2] = {"%02X\n", "%04X\n"};
185  const int slice_start = (W * jobnr) / nb_jobs;
186  const int slice_end = (W * (jobnr+1)) / nb_jobs;
187  int x, y, p;
188 
189  for (y = 0; y < H && (y + s->y < inlink->h); y++) {
190  for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
191  FFDrawColor color = { { 0 } };
192  FFDrawColor reverse = { { 0 } };
193  int value[4] = { 0 };
194 
195  s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
196  s->reverse_color(&s->draw, &color, &reverse);
197  ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
198  xoff + x * C * 10, yoff + y * P * 12, C * 10, P * 12);
199 
200  for (p = 0; p < P; p++) {
201  char text[256];
202 
203  snprintf(text, sizeof(text), format[C>>2], value[p]);
204  draw_text(&s->draw, out, &reverse, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
205  }
206  }
207  }
208 
209  return 0;
210 }
211 
212 static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
213 {
214  DatascopeContext *s = ctx->priv;
215  AVFilterLink *outlink = ctx->outputs[0];
216  AVFilterLink *inlink = ctx->inputs[0];
217  ThreadData *td = arg;
218  AVFrame *in = td->in;
219  AVFrame *out = td->out;
220  const int xoff = td->xoff;
221  const int yoff = td->yoff;
222  const int P = FFMAX(s->nb_planes, s->nb_comps);
223  const int C = s->chars;
224  const int W = (outlink->w - xoff) / (C * 10);
225  const int H = (outlink->h - yoff) / (P * 12);
226  const char *format[2] = {"%02X\n", "%04X\n"};
227  const int slice_start = (W * jobnr) / nb_jobs;
228  const int slice_end = (W * (jobnr+1)) / nb_jobs;
229  int x, y, p;
230 
231  for (y = 0; y < H && (y + s->y < inlink->h); y++) {
232  for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
233  FFDrawColor color = { { 0 } };
234  int value[4] = { 0 };
235 
236  s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
237 
238  for (p = 0; p < P; p++) {
239  char text[256];
240 
241  snprintf(text, sizeof(text), format[C>>2], value[p]);
242  draw_text(&s->draw, out, &color, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
243  }
244  }
245  }
246 
247  return 0;
248 }
249 
250 static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
251 {
252  DatascopeContext *s = ctx->priv;
253  AVFilterLink *outlink = ctx->outputs[0];
254  AVFilterLink *inlink = ctx->inputs[0];
255  ThreadData *td = arg;
256  AVFrame *in = td->in;
257  AVFrame *out = td->out;
258  const int xoff = td->xoff;
259  const int yoff = td->yoff;
260  const int P = FFMAX(s->nb_planes, s->nb_comps);
261  const int C = s->chars;
262  const int W = (outlink->w - xoff) / (C * 10);
263  const int H = (outlink->h - yoff) / (P * 12);
264  const char *format[2] = {"%02X\n", "%04X\n"};
265  const int slice_start = (W * jobnr) / nb_jobs;
266  const int slice_end = (W * (jobnr+1)) / nb_jobs;
267  int x, y, p;
268 
269  for (y = 0; y < H && (y + s->y < inlink->h); y++) {
270  for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
271  FFDrawColor color = { { 0 } };
272  int value[4] = { 0 };
273 
274  s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
275  for (p = 0; p < P; p++) {
276  char text[256];
277 
278  snprintf(text, sizeof(text), format[C>>2], value[p]);
279  draw_text(&s->draw, out, &s->white, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
280  }
281  }
282  }
283 
284  return 0;
285 }
286 
287 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
288 {
289  AVFilterContext *ctx = inlink->dst;
290  DatascopeContext *s = ctx->priv;
291  AVFilterLink *outlink = ctx->outputs[0];
292  ThreadData td = { 0 };
293  int ymaxlen = 0;
294  int xmaxlen = 0;
295  AVFrame *out;
296 
297  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
298  if (!out) {
299  av_frame_free(&in);
300  return AVERROR(ENOMEM);
301  }
302  out->pts = in->pts;
303 
304  ff_fill_rectangle(&s->draw, &s->black, out->data, out->linesize,
305  0, 0, outlink->w, outlink->h);
306 
307  if (s->axis) {
308  const int P = FFMAX(s->nb_planes, s->nb_comps);
309  const int C = s->chars;
310  int Y = outlink->h / (P * 12);
311  int X = outlink->w / (C * 10);
312  char text[256] = { 0 };
313  int x, y;
314 
315  snprintf(text, sizeof(text), "%d", s->y + Y);
316  ymaxlen = strlen(text);
317  ymaxlen *= 10;
318  snprintf(text, sizeof(text), "%d", s->x + X);
319  xmaxlen = strlen(text);
320  xmaxlen *= 10;
321 
322  Y = (outlink->h - xmaxlen) / (P * 12);
323  X = (outlink->w - ymaxlen) / (C * 10);
324 
325  for (y = 0; y < Y; y++) {
326  snprintf(text, sizeof(text), "%d", s->y + y);
327 
328  ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
329  0, xmaxlen + y * P * 12 + (P + 1) * P - 2, ymaxlen, 10);
330 
331  draw_text(&s->draw, out, &s->yellow, 2, xmaxlen + y * P * 12 + (P + 1) * P, text, 0);
332  }
333 
334  for (x = 0; x < X; x++) {
335  snprintf(text, sizeof(text), "%d", s->x + x);
336 
337  ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
338  ymaxlen + x * C * 10 + 2 * C - 2, 0, 10, xmaxlen);
339 
340  draw_text(&s->draw, out, &s->yellow, ymaxlen + x * C * 10 + 2 * C, 2, text, 1);
341  }
342  }
343 
344  td.in = in; td.out = out, td.yoff = xmaxlen, td.xoff = ymaxlen;
345  ctx->internal->execute(ctx, s->filter, &td, NULL, FFMIN(ff_filter_get_nb_threads(ctx), FFMAX(outlink->w / 20, 1)));
346 
347  av_frame_free(&in);
348  return ff_filter_frame(outlink, out);
349 }
350 
351 static int config_input(AVFilterLink *inlink)
352 {
353  DatascopeContext *s = inlink->dst->priv;
354  uint8_t alpha = s->opacity * 255;
355 
356  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
357  ff_draw_init(&s->draw, inlink->format, 0);
358  ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
359  ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, alpha} );
360  ff_draw_color(&s->draw, &s->yellow, (uint8_t[]){ 255, 255, 0, 255} );
361  ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 77, 77, 77, 255} );
362  s->chars = (s->draw.desc->comp[0].depth + 7) / 8 * 2;
363  s->nb_comps = s->draw.desc->nb_components;
364 
365  switch (s->mode) {
366  case 0: s->filter = filter_mono; break;
367  case 1: s->filter = filter_color; break;
368  case 2: s->filter = filter_color2; break;
369  }
370 
371  if (s->draw.desc->comp[0].depth <= 8) {
372  s->pick_color = pick_color8;
373  s->reverse_color = reverse_color8;
374  } else {
375  s->pick_color = pick_color16;
376  s->reverse_color = reverse_color16;
377  }
378 
379  return 0;
380 }
381 
382 static int config_output(AVFilterLink *outlink)
383 {
384  DatascopeContext *s = outlink->src->priv;
385 
386  outlink->h = s->oh;
387  outlink->w = s->ow;
388  outlink->sample_aspect_ratio = (AVRational){1,1};
389 
390  return 0;
391 }
392 
393 static const AVFilterPad inputs[] = {
394  {
395  .name = "default",
396  .type = AVMEDIA_TYPE_VIDEO,
397  .filter_frame = filter_frame,
398  .config_props = config_input,
399  },
400  { NULL }
401 };
402 
403 static const AVFilterPad outputs[] = {
404  {
405  .name = "default",
406  .type = AVMEDIA_TYPE_VIDEO,
407  .config_props = config_output,
408  },
409  { NULL }
410 };
411 
412 AVFilter ff_vf_datascope = {
413  .name = "datascope",
414  .description = NULL_IF_CONFIG_SMALL("Video data analysis."),
415  .priv_size = sizeof(DatascopeContext),
416  .priv_class = &datascope_class,
417  .query_formats = query_formats,
418  .inputs = inputs,
419  .outputs = outputs,
420  .flags = AVFILTER_FLAG_SLICE_THREADS,
421 };
422 
423 typedef struct PixscopeContext {
424  const AVClass *class;
425 
426  float xpos, ypos;
427  float wx, wy;
428  int w, h;
429  float o;
430 
431  int x, y;
432  int ww, wh;
433 
434  int nb_planes;
435  int nb_comps;
436  int is_rgb;
437  uint8_t rgba_map[4];
438  FFDrawContext draw;
439  FFDrawColor dark;
440  FFDrawColor black;
441  FFDrawColor white;
442  FFDrawColor green;
443  FFDrawColor blue;
444  FFDrawColor red;
445  FFDrawColor *colors[4];
446 
447  void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
448 } PixscopeContext;
449 
450 #define POFFSET(x) offsetof(PixscopeContext, x)
451 
452 static const AVOption pixscope_options[] = {
453  { "x", "set scope x offset", POFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
454  { "y", "set scope y offset", POFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
455  { "w", "set scope width", POFFSET(w), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGS },
456  { "h", "set scope height", POFFSET(h), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGS },
457  { "o", "set window opacity", POFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
458  { "wx", "set window x offset", POFFSET(wx), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGS },
459  { "wy", "set window y offset", POFFSET(wy), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGS },
460  { NULL }
461 };
462 
463 AVFILTER_DEFINE_CLASS(pixscope);
464 
465 static int pixscope_config_input(AVFilterLink *inlink)
466 {
467  PixscopeContext *s = inlink->dst->priv;
468 
469  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
470  ff_draw_init(&s->draw, inlink->format, 0);
471  ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
472  ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
473  ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
474  ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
475  ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
476  ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
477  s->nb_comps = s->draw.desc->nb_components;
478  s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
479 
480  if (s->is_rgb) {
481  s->colors[0] = &s->red;
482  s->colors[1] = &s->green;
483  s->colors[2] = &s->blue;
484  s->colors[3] = &s->white;
485  ff_fill_rgba_map(s->rgba_map, inlink->format);
486  } else {
487  s->colors[0] = &s->white;
488  s->colors[1] = &s->blue;
489  s->colors[2] = &s->red;
490  s->colors[3] = &s->white;
491  s->rgba_map[0] = 0;
492  s->rgba_map[1] = 1;
493  s->rgba_map[2] = 2;
494  s->rgba_map[3] = 3;
495  }
496 
497  if (s->draw.desc->comp[0].depth <= 8) {
498  s->pick_color = pick_color8;
499  } else {
500  s->pick_color = pick_color16;
501  }
502 
503  if (inlink->w < 640 || inlink->h < 480) {
504  av_log(inlink->dst, AV_LOG_ERROR, "min supported resolution is 640x480\n");
505  return AVERROR(EINVAL);
506  }
507 
508  s->ww = 300;
509  s->wh = 300 * 1.6180;
510  s->x = s->xpos * (inlink->w - 1);
511  s->y = s->ypos * (inlink->h - 1);
512  if (s->x + s->w >= inlink->w || s->y + s->h >= inlink->h) {
513  av_log(inlink->dst, AV_LOG_WARNING, "scope position is out of range, clipping\n");
514  s->x = FFMIN(s->x, inlink->w - s->w);
515  s->y = FFMIN(s->y, inlink->h - s->h);
516  }
517 
518  return 0;
519 }
520 
521 static int pixscope_filter_frame(AVFilterLink *inlink, AVFrame *in)
522 {
523  AVFilterContext *ctx = inlink->dst;
524  PixscopeContext *s = ctx->priv;
525  AVFilterLink *outlink = ctx->outputs[0];
526  AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
527  int max[4] = { 0 }, min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
528  float average[4] = { 0 };
529  double rms[4] = { 0 };
530  const char rgba[4] = { 'R', 'G', 'B', 'A' };
531  const char yuva[4] = { 'Y', 'U', 'V', 'A' };
532  int x, y, X, Y, i, w, h;
533  char text[128];
534 
535  if (!out) {
536  av_frame_free(&in);
537  return AVERROR(ENOMEM);
538  }
539  av_frame_copy_props(out, in);
540  av_frame_copy(out, in);
541 
542  w = s->ww / s->w;
543  h = s->ww / s->h;
544 
545  if (s->wx >= 0) {
546  X = (in->width - s->ww) * s->wx;
547  } else {
548  X = (in->width - s->ww) * -s->wx;
549  }
550  if (s->wy >= 0) {
551  Y = (in->height - s->wh) * s->wy;
552  } else {
553  Y = (in->height - s->wh) * -s->wy;
554  }
555 
556  if (s->wx < 0) {
557  if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
558  s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
559  X = (in->width - s->ww) * (1 + s->wx);
560  }
561  }
562 
563  if (s->wy < 0) {
564  if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
565  s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
566  Y = (in->height - s->wh) * (1 + s->wy);
567  }
568  }
569 
570  ff_blend_rectangle(&s->draw, &s->dark, out->data, out->linesize,
571  out->width, out->height,
572  X,
573  Y,
574  s->ww,
575  s->wh);
576 
577  for (y = 0; y < s->h; y++) {
578  for (x = 0; x < s->w; x++) {
579  FFDrawColor color = { { 0 } };
580  int value[4] = { 0 };
581 
582  s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
583  ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
584  x * w + (s->ww - 4 - (s->w * w)) / 2 + X, y * h + 2 + Y, w, h);
585  for (i = 0; i < 4; i++) {
586  rms[i] += (double)value[i] * (double)value[i];
587  average[i] += value[i];
588  min[i] = FFMIN(min[i], value[i]);
589  max[i] = FFMAX(max[i], value[i]);
590  }
591  }
592  }
593 
594  ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
595  out->width, out->height,
596  s->x - 2, s->y - 2, s->w + 4, 1);
597 
598  ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
599  out->width, out->height,
600  s->x - 1, s->y - 1, s->w + 2, 1);
601 
602  ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
603  out->width, out->height,
604  s->x - 1, s->y - 1, 1, s->h + 2);
605 
606  ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
607  out->width, out->height,
608  s->x - 2, s->y - 2, 1, s->h + 4);
609 
610  ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
611  out->width, out->height,
612  s->x - 1, s->y + 1 + s->h, s->w + 3, 1);
613 
614  ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
615  out->width, out->height,
616  s->x - 2, s->y + 2 + s->h, s->w + 4, 1);
617 
618  ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
619  out->width, out->height,
620  s->x + 1 + s->w, s->y - 1, 1, s->h + 2);
621 
622  ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
623  out->width, out->height,
624  s->x + 2 + s->w, s->y - 2, 1, s->h + 5);
625 
626  for (i = 0; i < 4; i++) {
627  rms[i] /= s->w * s->h;
628  rms[i] = sqrt(rms[i]);
629  average[i] /= s->w * s->h;
630  }
631 
632  snprintf(text, sizeof(text), "CH AVG MIN MAX RMS\n");
633  draw_text(&s->draw, out, &s->white, X + 28, Y + s->ww + 20, text, 0);
634  for (i = 0; i < s->nb_comps; i++) {
635  int c = s->rgba_map[i];
636 
637  snprintf(text, sizeof(text), "%c %07.1f %05d %05d %07.1f\n", s->is_rgb ? rgba[i] : yuva[i], average[c], min[c], max[c], rms[c]);
638  draw_text(&s->draw, out, s->colors[i], X + 28, Y + s->ww + 20 * (i + 2), text, 0);
639  }
640 
641  av_frame_free(&in);
642  return ff_filter_frame(outlink, out);
643 }
644 
645 static const AVFilterPad pixscope_inputs[] = {
646  {
647  .name = "default",
648  .type = AVMEDIA_TYPE_VIDEO,
649  .filter_frame = pixscope_filter_frame,
650  .config_props = pixscope_config_input,
651  },
652  { NULL }
653 };
654 
655 static const AVFilterPad pixscope_outputs[] = {
656  {
657  .name = "default",
658  .type = AVMEDIA_TYPE_VIDEO,
659  },
660  { NULL }
661 };
662 
663 AVFilter ff_vf_pixscope = {
664  .name = "pixscope",
665  .description = NULL_IF_CONFIG_SMALL("Pixel data analysis."),
666  .priv_size = sizeof(PixscopeContext),
667  .priv_class = &pixscope_class,
668  .query_formats = query_formats,
669  .inputs = pixscope_inputs,
670  .outputs = pixscope_outputs,
671  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
672 };
673 
674 typedef struct PixelValues {
675  uint16_t p[4];
676 } PixelValues;
677 
678 typedef struct OscilloscopeContext {
679  const AVClass *class;
680 
681  float xpos, ypos;
682  float tx, ty;
683  float size;
684  float tilt;
685  float theight, twidth;
686  float o;
687  int components;
688  int grid;
689  int statistics;
690  int scope;
691 
692  int x1, y1, x2, y2;
693  int ox, oy;
694  int height, width;
695 
696  int max;
697  int nb_planes;
698  int nb_comps;
699  int is_rgb;
700  uint8_t rgba_map[4];
701  FFDrawContext draw;
702  FFDrawColor dark;
703  FFDrawColor black;
704  FFDrawColor white;
705  FFDrawColor green;
706  FFDrawColor blue;
707  FFDrawColor red;
708  FFDrawColor cyan;
709  FFDrawColor magenta;
710  FFDrawColor gray;
711  FFDrawColor *colors[4];
712 
713  int nb_values;
714  PixelValues *values;
715 
716  void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
717  void (*draw_trace)(struct OscilloscopeContext *s, AVFrame *frame);
718 } OscilloscopeContext;
719 
720 #define OOFFSET(x) offsetof(OscilloscopeContext, x)
721 
722 static const AVOption oscilloscope_options[] = {
723  { "x", "set scope x position", OOFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
724  { "y", "set scope y position", OOFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
725  { "s", "set scope size", OOFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGS },
726  { "t", "set scope tilt", OOFFSET(tilt), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
727  { "o", "set trace opacity", OOFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGS },
728  { "tx", "set trace x position", OOFFSET(tx), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
729  { "ty", "set trace y position", OOFFSET(ty), AV_OPT_TYPE_FLOAT, {.dbl=0.9}, 0, 1, FLAGS },
730  { "tw", "set trace width", OOFFSET(twidth), AV_OPT_TYPE_FLOAT, {.dbl=0.8},.1, 1, FLAGS },
731  { "th", "set trace height", OOFFSET(theight), AV_OPT_TYPE_FLOAT, {.dbl=0.3},.1, 1, FLAGS },
732  { "c", "set components to trace", OOFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGS },
733  { "g", "draw trace grid", OOFFSET(grid), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
734  { "st", "draw statistics", OOFFSET(statistics), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
735  { "sc", "draw scope", OOFFSET(scope), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
736  { NULL }
737 };
738 
739 AVFILTER_DEFINE_CLASS(oscilloscope);
740 
741 static void oscilloscope_uninit(AVFilterContext *ctx)
742 {
743  OscilloscopeContext *s = ctx->priv;
744 
745  av_freep(&s->values);
746 }
747 
748 static void draw_line(FFDrawContext *draw, int x0, int y0, int x1, int y1,
749  AVFrame *out, FFDrawColor *color)
750 {
751  int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
752  int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
753  int err = (dx > dy ? dx : -dy) / 2, e2;
754  int p, i;
755 
756  for (;;) {
757  if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
758  for (p = 0; p < draw->nb_planes; p++) {
759  if (draw->desc->comp[p].depth == 8) {
760  if (draw->nb_planes == 1) {
761  for (i = 0; i < 4; i++) {
762  out->data[0][y0 * out->linesize[0] + x0 * draw->pixelstep[0] + i] = color->comp[0].u8[i];
763  }
764  } else {
765  out->data[p][out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p])] = color->comp[p].u8[0];
766  }
767  } else {
768  if (draw->nb_planes == 1) {
769  for (i = 0; i < 4; i++) {
770  AV_WN16(out->data[0] + y0 * out->linesize[0] + 2 * (x0 * draw->pixelstep[0] + i), color->comp[0].u16[i]);
771  }
772  } else {
773  AV_WN16(out->data[p] + out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p]) * 2, color->comp[p].u16[0]);
774  }
775  }
776  }
777  }
778 
779  if (x0 == x1 && y0 == y1)
780  break;
781 
782  e2 = err;
783 
784  if (e2 >-dx) {
785  err -= dy;
786  x0 += sx;
787  }
788 
789  if (e2 < dy) {
790  err += dx;
791  y0 += sy;
792  }
793  }
794 }
795 
796 static void draw_trace8(OscilloscopeContext *s, AVFrame *frame)
797 {
798  int i, c;
799 
800  for (i = 1; i < s->nb_values; i++) {
801  for (c = 0; c < s->nb_comps; c++) {
802  if ((1 << c) & s->components) {
803  int x = i * s->width / s->nb_values;
804  int px = (i - 1) * s->width / s->nb_values;
805  int py = s->height - s->values[i-1].p[c] * s->height / 256;
806  int y = s->height - s->values[i].p[c] * s->height / 256;
807 
808  draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
809  }
810  }
811  }
812 }
813 
814 
815 static void draw_trace16(OscilloscopeContext *s, AVFrame *frame)
816 {
817  int i, c;
818 
819  for (i = 1; i < s->nb_values; i++) {
820  for (c = 0; c < s->nb_comps; c++) {
821  if ((1 << c) & s->components) {
822  int x = i * s->width / s->nb_values;
823  int px = (i - 1) * s->width / s->nb_values;
824  int py = s->height - s->values[i-1].p[c] * s->height / s->max;
825  int y = s->height - s->values[i].p[c] * s->height / s->max;
826 
827  draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
828  }
829  }
830  }
831 }
832 
833 static int oscilloscope_config_input(AVFilterLink *inlink)
834 {
835  OscilloscopeContext *s = inlink->dst->priv;
836  int cx, cy, size;
837  double tilt;
838 
839  s->nb_planes = av_pix_fmt_count_planes(inlink->format);
840  ff_draw_init(&s->draw, inlink->format, 0);
841  ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
842  ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
843  ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
844  ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
845  ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
846  ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
847  ff_draw_color(&s->draw, &s->cyan, (uint8_t[]){ 0, 255, 255, 255} );
848  ff_draw_color(&s->draw, &s->magenta, (uint8_t[]){ 255, 0, 255, 255} );
849  ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 128, 128, 128, 255} );
850  s->nb_comps = s->draw.desc->nb_components;
851  s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
852 
853  if (s->is_rgb) {
854  s->colors[0] = &s->red;
855  s->colors[1] = &s->green;
856  s->colors[2] = &s->blue;
857  s->colors[3] = &s->white;
858  ff_fill_rgba_map(s->rgba_map, inlink->format);
859  } else {
860  s->colors[0] = &s->white;
861  s->colors[1] = &s->cyan;
862  s->colors[2] = &s->magenta;
863  s->colors[3] = &s->white;
864  s->rgba_map[0] = 0;
865  s->rgba_map[1] = 1;
866  s->rgba_map[2] = 2;
867  s->rgba_map[3] = 3;
868  }
869 
870  if (s->draw.desc->comp[0].depth <= 8) {
871  s->pick_color = pick_color8;
872  s->draw_trace = draw_trace8;
873  } else {
874  s->pick_color = pick_color16;
875  s->draw_trace = draw_trace16;
876  }
877 
878  s->max = (1 << s->draw.desc->comp[0].depth);
879  cx = s->xpos * (inlink->w - 1);
880  cy = s->ypos * (inlink->h - 1);
881  s->height = s->theight * inlink->h;
882  s->width = s->twidth * inlink->w;
883  size = hypot(inlink->w, inlink->h);
884 
885  s->values = av_calloc(size, sizeof(*s->values));
886  if (!s->values)
887  return AVERROR(ENOMEM);
888 
889  size *= s->size;
890  tilt = (s->tilt - 0.5) * M_PI;
891  s->x1 = cx - size / 2.0 * cos(tilt);
892  s->x2 = cx + size / 2.0 * cos(tilt);
893  s->y1 = cy - size / 2.0 * sin(tilt);
894  s->y2 = cy + size / 2.0 * sin(tilt);
895  s->ox = (inlink->w - s->width) * s->tx;
896  s->oy = (inlink->h - s->height) * s->ty;
897 
898  return 0;
899 }
900 
901 static void draw_scope(OscilloscopeContext *s, int x0, int y0, int x1, int y1,
902  AVFrame *out, PixelValues *p, int state)
903 {
904  int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
905  int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
906  int err = (dx > dy ? dx : -dy) / 2, e2;
907 
908  for (;;) {
909  if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
910  FFDrawColor color = { { 0 } };
911  int value[4] = { 0 };
912 
913  s->pick_color(&s->draw, &color, out, x0, y0, value);
914  s->values[s->nb_values].p[0] = value[0];
915  s->values[s->nb_values].p[1] = value[1];
916  s->values[s->nb_values].p[2] = value[2];
917  s->values[s->nb_values].p[3] = value[3];
918  s->nb_values++;
919 
920  if (s->scope) {
921  if (s->draw.desc->comp[0].depth == 8) {
922  if (s->draw.nb_planes == 1) {
923  int i;
924 
925  for (i = 0; i < s->draw.pixelstep[0]; i++)
926  out->data[0][out->linesize[0] * y0 + x0 * s->draw.pixelstep[0] + i] = 255 * ((s->nb_values + state) & 1);
927  } else {
928  out->data[0][out->linesize[0] * y0 + x0] = 255 * ((s->nb_values + state) & 1);
929  }
930  } else {
931  if (s->draw.nb_planes == 1) {
932  int i;
933 
934  for (i = 0; i < s->draw.pixelstep[0]; i++)
935  AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0 * (s->draw.pixelstep[0] + i), (s->max - 1) * ((s->nb_values + state) & 1));
936  } else {
937  AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0, (s->max - 1) * ((s->nb_values + state) & 1));
938  }
939  }
940  }
941  }
942 
943  if (x0 == x1 && y0 == y1)
944  break;
945 
946  e2 = err;
947 
948  if (e2 >-dx) {
949  err -= dy;
950  x0 += sx;
951  }
952 
953  if (e2 < dy) {
954  err += dx;
955  y0 += sy;
956  }
957  }
958 }
959 
960 static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
961 {
962  AVFilterContext *ctx = inlink->dst;
963  OscilloscopeContext *s = ctx->priv;
964  AVFilterLink *outlink = ctx->outputs[0];
965  float average[4] = { 0 };
966  int max[4] = { 0 };
967  int min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
968  int i, c;
969 
970  s->nb_values = 0;
971  draw_scope(s, s->x1, s->y1, s->x2, s->y2, frame, s->values, inlink->frame_count_in & 1);
972  ff_blend_rectangle(&s->draw, &s->dark, frame->data, frame->linesize,
973  frame->width, frame->height,
974  s->ox, s->oy, s->width, s->height + 20 * s->statistics);
975 
976  if (s->grid) {
977  ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
978  s->ox, s->oy, s->width - 1, 1);
979 
980  for (i = 1; i < 5; i++) {
981  ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
982  s->ox, s->oy + i * (s->height - 1) / 4, s->width, 1);
983  }
984 
985  for (i = 0; i < 10; i++) {
986  ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
987  s->ox + i * (s->width - 1) / 10, s->oy, 1, s->height);
988  }
989 
990  ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
991  s->ox + s->width - 1, s->oy, 1, s->height);
992  }
993 
994  s->draw_trace(s, frame);
995 
996  for (i = 0; i < s->nb_values; i++) {
997  for (c = 0; c < s->nb_comps; c++) {
998  if ((1 << c) & s->components) {
999  max[c] = FFMAX(max[c], s->values[i].p[c]);
1000  min[c] = FFMIN(min[c], s->values[i].p[c]);
1001  average[c] += s->values[i].p[c];
1002  }
1003  }
1004  }
1005  for (c = 0; c < s->nb_comps; c++) {
1006  average[c] /= s->nb_values;
1007  }
1008 
1009  if (s->statistics && s->height > 10 && s->width > 280 * av_popcount(s->components)) {
1010  for (c = 0, i = 0; c < s->nb_comps; c++) {
1011  if ((1 << c) & s->components) {
1012  const char rgba[4] = { 'R', 'G', 'B', 'A' };
1013  const char yuva[4] = { 'Y', 'U', 'V', 'A' };
1014  char text[128];
1015 
1016  snprintf(text, sizeof(text), "%c avg:%.1f min:%d max:%d\n", s->is_rgb ? rgba[c] : yuva[c], average[s->rgba_map[c]], min[s->rgba_map[c]], max[s->rgba_map[c]]);
1017  draw_text(&s->draw, frame, &s->white, s->ox + 2 + 280 * i++, s->oy + s->height + 4, text, 0);
1018  }
1019  }
1020  }
1021 
1022  return ff_filter_frame(outlink, frame);
1023 }
1024 
1025 static const AVFilterPad oscilloscope_inputs[] = {
1026  {
1027  .name = "default",
1028  .type = AVMEDIA_TYPE_VIDEO,
1029  .filter_frame = oscilloscope_filter_frame,
1030  .config_props = oscilloscope_config_input,
1031  .needs_writable = 1,
1032  },
1033  { NULL }
1034 };
1035 
1036 static const AVFilterPad oscilloscope_outputs[] = {
1037  {
1038  .name = "default",
1039  .type = AVMEDIA_TYPE_VIDEO,
1040  },
1041  { NULL }
1042 };
1043 
1044 AVFilter ff_vf_oscilloscope = {
1045  .name = "oscilloscope",
1046  .description = NULL_IF_CONFIG_SMALL("2D Video Oscilloscope."),
1047  .priv_size = sizeof(OscilloscopeContext),
1048  .priv_class = &oscilloscope_class,
1049  .query_formats = query_formats,
1050  .uninit = oscilloscope_uninit,
1051  .inputs = oscilloscope_inputs,
1052  .outputs = oscilloscope_outputs,
1053  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
1054 };
ff_draw_supported_pixel_formats
AVFilterFormats * ff_draw_supported_pixel_formats(unsigned flags)
Return the list of pixel formats supported by the draw functions.
Definition: drawutils.c:725
NULL
#define NULL
Definition: coverity.c:32
OscilloscopeContext::draw
FFDrawContext draw
Definition: vf_datascope.c:701
s
const char * s
Definition: avisynth_c.h:768
P
#define P
ThreadData::out
AVFrame * out
Definition: af_headphone.c:146
alpha
static float alpha(float a)
Definition: af_superequalizer.c:109
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
pixscope_options
static const AVOption pixscope_options[]
Definition: vf_datascope.c:452
h
h
Definition: vp9dsp_template.c:2038
AVOption
AVOption.
Definition: opt.h:246
C
#define C
state
static struct @260 state
FFDrawColor::u16
uint16_t u16[8]
Definition: drawutils.h:65
FFDrawContext::hsub
uint8_t hsub[MAX_PLANES]
Definition: drawutils.h:54
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2459
avfilter.h
Main libavfilter public API header.
AV_OPT_TYPE_INT
Definition: opt.h:223
PixscopeContext::pick_color
void(* pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
Definition: vf_datascope.c:447
filter_color2
static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_datascope.c:170
OscilloscopeContext::magenta
FFDrawColor magenta
Definition: vf_datascope.c:709
OscilloscopeContext::colors
FFDrawColor * colors[4]
Definition: vf_datascope.c:711
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:92
ff_vf_pixscope
AVFilter ff_vf_pixscope
Definition: vf_datascope.c:663
AV_RL16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:87
DatascopeContext::pick_color
void(* pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
Definition: vf_datascope.c:50
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:230
filter_mono
static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_datascope.c:250
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
PixscopeContext::black
FFDrawColor black
Definition: vf_datascope.c:440
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
AV_OPT_TYPE_CONST
Definition: opt.h:232
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1151
ThreadData::in
AVFrame * in
Definition: af_headphone.c:146
OOFFSET
#define OOFFSET(x)
Definition: vf_datascope.c:720
OFFSET
#define OFFSET(x)
Definition: vf_datascope.c:55
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
pick_color16
static void pick_color16(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
Definition: vf_datascope.c:120
uint8_t
uint8_t
Definition: audio_convert.c:194
pick_color8
static void pick_color8(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
Definition: vf_datascope.c:102
uninit
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
DatascopeContext::gray
FFDrawColor gray
Definition: vf_datascope.c:48
opt.h
AVOptions.
Y
#define Y
Definition: vf_boxblur.c:76
color
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
Definition: log.c:94
reverse
static uint32_t reverse(uint32_t num, int bits)
Definition: speedhq.c:565
filter_color
static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_datascope.c:212
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:294
DatascopeContext::filter
int(* filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_datascope.c:52
frame
static AVFrame * frame
Definition: demuxing_decoding.c:53
DatascopeContext::reverse_color
void(* reverse_color)(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
Definition: vf_datascope.c:51
height
#define height
flags
static int flags
Definition: log.c:57
inputs
static const AVFilterPad inputs[]
Definition: vf_datascope.c:393
OscilloscopeContext::pick_color
void(* pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
Definition: vf_datascope.c:716
size
ptrdiff_t size
Definition: opengl_enc.c:101
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
datascope_options
static const AVOption datascope_options[]
Definition: vf_datascope.c:58
POFFSET
#define POFFSET(x)
Definition: vf_datascope.c:450
draw_trace16
static void draw_trace16(OscilloscopeContext *s, AVFrame *frame)
Definition: vf_datascope.c:815
draw_trace8
static void draw_trace8(OscilloscopeContext *s, AVFrame *frame)
Definition: vf_datascope.c:796
AVFrame::width
int width
Definition: frame.h:259
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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
td
#define td
Definition: regdef.h:70
avpriv_cga_font
const uint8_t avpriv_cga_font[2048]
Definition: xga_font_data.c:29
AVERROR
#define AVERROR(e)
Definition: error.h:43
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
AV_OPT_TYPE_FLOAT
Definition: opt.h:226
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:179
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:353
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:116
arg
const char * arg
Definition: jacosubdec.c:66
ff_draw_color
void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4])
Prepare a color.
Definition: drawutils.c:226
width
uint16_t width
Definition: gdv.c:47
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
oscilloscope_inputs
static const AVFilterPad oscilloscope_inputs[]
Definition: vf_datascope.c:1025
oscilloscope_outputs
static const AVFilterPad oscilloscope_outputs[]
Definition: vf_datascope.c:1036
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
FFDrawColor::u8
uint8_t u8[16]
Definition: drawutils.h:66
reverse_color16
static void reverse_color16(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
Definition: vf_datascope.c:150
av_frame_copy
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:740
PixscopeContext::colors
FFDrawColor * colors[4]
Definition: vf_datascope.c:445
oscilloscope_uninit
static void oscilloscope_uninit(AVFilterContext *ctx)
Definition: vf_datascope.c:741
DatascopeContext::draw
FFDrawContext draw
Definition: vf_datascope.c:44
hypot
static av_const double hypot(double x, double y)
Definition: libm.h:366
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:857
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
PixscopeContext::rgba_map
uint8_t rgba_map[4]
Definition: vf_datascope.c:437
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_datascope.c:287
void
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
value
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
ctx
AVFormatContext * ctx
Definition: movenc.c:48
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_datascope.c:351
AV_OPT_TYPE_BOOL
Definition: opt.h:240
OscilloscopeContext::draw_trace
void(* draw_trace)(struct OscilloscopeContext *s, AVFrame *frame)
Definition: vf_datascope.c:717
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_datascope.c:74
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
ff_vf_oscilloscope
AVFilter ff_vf_oscilloscope
Definition: vf_datascope.c:1044
FFDrawColor::comp
union FFDrawColor::@173 comp[MAX_PLANES]
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(datascope)
FLAGS
#define FLAGS
Definition: vf_datascope.c:56
OscilloscopeContext::values
PixelValues * values
Definition: vf_datascope.c:714
ff_blend_mask
void ff_blend_mask(FFDrawContext *draw, FFDrawColor *color, uint8_t *dst[], int dst_linesize[], int dst_w, int dst_h, const uint8_t *mask, int mask_linesize, int mask_w, int mask_h, int l2depth, unsigned endianness, int x0, int y0)
Blend an alpha mask with an uniform color.
Definition: drawutils.c:616
outputs
static const AVFilterPad outputs[]
Definition: vf_datascope.c:403
PixscopeContext::dark
FFDrawColor dark
Definition: vf_datascope.c:439
drawutils.h
misc drawing utilities
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
FFDrawContext::nb_planes
unsigned nb_planes
Definition: drawutils.h:51
oscilloscope_options
static const AVOption oscilloscope_options[]
Definition: vf_datascope.c:722
draw_text
static void draw_text(FFDrawContext *draw, AVFrame *frame, FFDrawColor *color, int x0, int y0, const uint8_t *text, int vertical)
Definition: vf_datascope.c:79
PixscopeContext::draw
FFDrawContext draw
Definition: vf_datascope.c:438
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Definition: audio_convert.c:194
pixscope_filter_frame
static int pixscope_filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_datascope.c:521
format
static const char * format
Definition: movenc.c:47
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AVFilter
Filter definition.
Definition: avfilter.h:144
W
#define W(a, i, v)
Definition: jpegls.h:122
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
ff_blend_rectangle
void ff_blend_rectangle(FFDrawContext *draw, FFDrawColor *color, uint8_t *dst[], int dst_linesize[], int dst_w, int dst_h, int x0, int y0, int w, int h)
Blend a rectangle with an uniform color.
Definition: drawutils.c:439
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
ff_draw_init
int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
Init a draw context.
Definition: drawutils.c:178
snprintf
#define snprintf
Definition: snprintf.h:34
AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
Definition: opt.h:233
parseutils.h
misc parsing utilities
PixscopeContext::blue
FFDrawColor blue
Definition: vf_datascope.c:443
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
PixelValues::p
uint16_t p[4]
Definition: vf_datascope.c:675
AVFilterContext::internal
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
int
int
Definition: ffmpeg_filter.c:190
draw_scope
static void draw_scope(OscilloscopeContext *s, int x0, int y0, int x1, int y1, AVFrame *out, PixelValues *p, int state)
Definition: vf_datascope.c:901
DatascopeContext::white
FFDrawColor white
Definition: vf_datascope.c:46
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_datascope.c:382
oscilloscope_filter_frame
static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
Definition: vf_datascope.c:960
pixscope_config_input
static int pixscope_config_input(AVFilterLink *inlink)
Definition: vf_datascope.c:465
AVFilterInternal::execute
avfilter_execute_func * execute
Definition: internal.h:155
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2052
DatascopeContext::yellow
FFDrawColor yellow
Definition: vf_datascope.c:45
DatascopeContext::black
FFDrawColor black
Definition: vf_datascope.c:47
ff_vf_datascope
AVFilter ff_vf_datascope
Definition: vf_datascope.c:412
pixscope_outputs
static const AVFilterPad pixscope_outputs[]
Definition: vf_datascope.c:655
FFDrawContext::pixelstep
int pixelstep[MAX_PLANES]
Definition: drawutils.h:52
H
#define H
Definition: pixlet.c:37
FFDrawContext::desc
const struct AVPixFmtDescriptor * desc
Definition: drawutils.h:49
ff_fill_rectangle
void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color, uint8_t *dst[], int dst_linesize[], int dst_x, int dst_y, int w, int h)
Fill a rectangle with an uniform color.
Definition: drawutils.c:312
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
AVFrame::height
int height
Definition: frame.h:259
out
FILE * out
Definition: movenc.c:54
FFDrawContext::vsub
uint8_t vsub[MAX_PLANES]
Definition: drawutils.h:55
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AV_WN16
#define AV_WN16(p, v)
Definition: intreadwrite.h:377
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
M_PI
#define M_PI
Definition: mathematics.h:52
PixscopeContext::red
FFDrawColor red
Definition: vf_datascope.c:444
draw_line
static void draw_line(FFDrawContext *draw, int x0, int y0, int x1, int y1, AVFrame *out, FFDrawColor *color)
Definition: vf_datascope.c:748
internal.h
internal API functions
oscilloscope_config_input
static int oscilloscope_config_input(AVFilterLink *inlink)
Definition: vf_datascope.c:833
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:58
PixscopeContext::green
FFDrawColor green
Definition: vf_datascope.c:442
min
float min
Definition: vorbis_enc_data.h:456
pixscope_inputs
static const AVFilterPad pixscope_inputs[]
Definition: vf_datascope.c:645
mode
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:603
xga_font_data.h
CGA/EGA/VGA ROM font data.
reverse_color8
static void reverse_color8(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
Definition: vf_datascope.c:138
FFDrawColor::rgba
uint8_t rgba[4]
Definition: drawutils.h:62
PixscopeContext::white
FFDrawColor white
Definition: vf_datascope.c:441
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