FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_datascope.c
Date: 2024-04-12 08:31:17
Exec Total Coverage
Lines: 0 542 0.0%
Functions: 0 25 0.0%
Branches: 0 276 0.0%

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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/intreadwrite.h"
22 #include "libavutil/mem.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/pixdesc.h"
25 #include "libavutil/xga_font_data.h"
26 #include "avfilter.h"
27 #include "drawutils.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31
32 typedef struct DatascopeContext {
33 const AVClass *class;
34 int ow, oh;
35 int x, y;
36 int mode;
37 int dformat;
38 int axis;
39 int components;
40 float opacity;
41
42 int nb_planes;
43 int nb_comps;
44 int chars;
45 FFDrawContext draw;
46 FFDrawColor yellow;
47 FFDrawColor white;
48 FFDrawColor black;
49 FFDrawColor gray;
50
51 void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
52 void (*reverse_color)(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse);
53 int (*filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
54 } DatascopeContext;
55
56 #define OFFSET(x) offsetof(DatascopeContext, x)
57 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
58 #define FLAGSR AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
59
60 static const AVOption datascope_options[] = {
61 { "size", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
62 { "s", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
63 { "x", "set x offset", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGSR },
64 { "y", "set y offset", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGSR },
65 { "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGSR, .unit = "mode" },
66 { "mono", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGSR, .unit = "mode" },
67 { "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGSR, .unit = "mode" },
68 { "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGSR, .unit = "mode" },
69 { "axis", "draw column/row numbers", OFFSET(axis), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGSR },
70 { "opacity", "set background opacity", OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=0.75}, 0, 1, FLAGSR },
71 { "format", "set display number format", OFFSET(dformat), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGSR, .unit = "format" },
72 { "hex", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGSR, .unit = "format" },
73 { "dec", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGSR, .unit = "format" },
74 { "components", "set components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=15}, 1, 15, FLAGSR },
75 { NULL }
76 };
77
78 AVFILTER_DEFINE_CLASS(datascope);
79
80 static int query_formats(AVFilterContext *ctx)
81 {
82 return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
83 }
84
85 static void draw_text(FFDrawContext *draw, AVFrame *frame, FFDrawColor *color,
86 int x0, int y0, const uint8_t *text, int vertical)
87 {
88 int x = x0;
89
90 for (; *text; text++) {
91 if (*text == '\n') {
92 x = x0;
93 y0 += 8;
94 continue;
95 }
96 ff_blend_mask(draw, color, frame->data, frame->linesize,
97 frame->width, frame->height,
98 avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
99 if (vertical) {
100 x = x0;
101 y0 += 8;
102 } else {
103 x += 8;
104 }
105 }
106 }
107
108 static void pick_color8(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
109 {
110 int p, i;
111
112 color->rgba[3] = 255;
113 for (p = 0; p < draw->nb_planes; p++) {
114 if (draw->nb_planes == 1) {
115 for (i = 0; i < 4; i++) {
116 value[i] = in->data[0][y * in->linesize[0] + x * draw->pixelstep[0] + i];
117 color->comp[0].u8[i] = value[i];
118 }
119 } else {
120 value[p] = in->data[p][(y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p])];
121 color->comp[p].u8[0] = value[p];
122 }
123 }
124 }
125
126 static void pick_color16(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
127 {
128 int p, i;
129
130 color->rgba[3] = 255;
131 for (p = 0; p < draw->nb_planes; p++) {
132 if (draw->nb_planes == 1) {
133 for (i = 0; i < 4; i++) {
134 value[i] = AV_RL16(in->data[0] + y * in->linesize[0] + x * draw->pixelstep[0] + i * 2);
135 color->comp[0].u16[i] = value[i];
136 }
137 } else {
138 value[p] = AV_RL16(in->data[p] + (y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p]) * 2);
139 color->comp[p].u16[0] = value[p];
140 }
141 }
142 }
143
144 static void reverse_color8(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
145 {
146 int p;
147
148 reverse->rgba[3] = 255;
149 for (p = 0; p < draw->nb_planes; p++) {
150 reverse->comp[p].u8[0] = color->comp[p].u8[0] > 127 ? 0 : 255;
151 reverse->comp[p].u8[1] = color->comp[p].u8[1] > 127 ? 0 : 255;
152 reverse->comp[p].u8[2] = color->comp[p].u8[2] > 127 ? 0 : 255;
153 }
154 }
155
156 static void reverse_color16(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
157 {
158 int p;
159
160 reverse->rgba[3] = 255;
161 for (p = 0; p < draw->nb_planes; p++) {
162 const unsigned max = (1 << draw->desc->comp[p].depth) - 1;
163 const unsigned mid = (max + 1) / 2;
164
165 reverse->comp[p].u16[0] = color->comp[p].u16[0] > mid ? 0 : max;
166 reverse->comp[p].u16[1] = color->comp[p].u16[1] > mid ? 0 : max;
167 reverse->comp[p].u16[2] = color->comp[p].u16[2] > mid ? 0 : max;
168 }
169 }
170
171 typedef struct ThreadData {
172 AVFrame *in, *out;
173 int xoff, yoff, PP;
174 } ThreadData;
175
176 static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
177 {
178 DatascopeContext *s = ctx->priv;
179 AVFilterLink *outlink = ctx->outputs[0];
180 AVFilterLink *inlink = ctx->inputs[0];
181 ThreadData *td = arg;
182 AVFrame *in = td->in;
183 AVFrame *out = td->out;
184 const int PP = td->PP;
185 const int xoff = td->xoff;
186 const int yoff = td->yoff;
187 const int P = FFMAX(s->nb_planes, s->nb_comps);
188 const int C = s->chars;
189 const int D = ((s->chars - s->dformat) >> 2) + s->dformat * 2;
190 const int W = (outlink->w - xoff) / (C * 10);
191 const int H = (outlink->h - yoff) / (PP * 12);
192 const char *format[4] = {"%02X\n", "%04X\n", "%03d\n", "%05d\n"};
193 const int slice_start = (W * jobnr) / nb_jobs;
194 const int slice_end = (W * (jobnr+1)) / nb_jobs;
195 int x, y, p;
196
197 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
198 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
199 FFDrawColor color = { { 0 } };
200 FFDrawColor reverse = { { 0 } };
201 int value[4] = { 0 }, pp = 0;
202
203 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
204 s->reverse_color(&s->draw, &color, &reverse);
205 ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
206 xoff + x * C * 10, yoff + y * PP * 12, C * 10, PP * 12);
207
208 for (p = 0; p < P; p++) {
209 char text[256];
210
211 if (!(s->components & (1 << p)))
212 continue;
213 snprintf(text, sizeof(text), format[D], value[p]);
214 draw_text(&s->draw, out, &reverse, xoff + x * C * 10 + 2, yoff + y * PP * 12 + pp * 10 + 2, text, 0);
215 pp++;
216 }
217 }
218 }
219
220 return 0;
221 }
222
223 static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
224 {
225 DatascopeContext *s = ctx->priv;
226 AVFilterLink *outlink = ctx->outputs[0];
227 AVFilterLink *inlink = ctx->inputs[0];
228 ThreadData *td = arg;
229 AVFrame *in = td->in;
230 AVFrame *out = td->out;
231 const int PP = td->PP;
232 const int xoff = td->xoff;
233 const int yoff = td->yoff;
234 const int P = FFMAX(s->nb_planes, s->nb_comps);
235 const int C = s->chars;
236 const int D = ((s->chars - s->dformat) >> 2) + s->dformat * 2;
237 const int W = (outlink->w - xoff) / (C * 10);
238 const int H = (outlink->h - yoff) / (PP * 12);
239 const char *format[4] = {"%02X\n", "%04X\n", "%03d\n", "%05d\n"};
240 const int slice_start = (W * jobnr) / nb_jobs;
241 const int slice_end = (W * (jobnr+1)) / nb_jobs;
242 int x, y, p;
243
244 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
245 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
246 FFDrawColor color = { { 0 } };
247 int value[4] = { 0 }, pp = 0;
248
249 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
250
251 for (p = 0; p < P; p++) {
252 char text[256];
253
254 if (!(s->components & (1 << p)))
255 continue;
256 snprintf(text, sizeof(text), format[D], value[p]);
257 draw_text(&s->draw, out, &color, xoff + x * C * 10 + 2, yoff + y * PP * 12 + pp * 10 + 2, text, 0);
258 pp++;
259 }
260 }
261 }
262
263 return 0;
264 }
265
266 static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
267 {
268 DatascopeContext *s = ctx->priv;
269 AVFilterLink *outlink = ctx->outputs[0];
270 AVFilterLink *inlink = ctx->inputs[0];
271 ThreadData *td = arg;
272 AVFrame *in = td->in;
273 AVFrame *out = td->out;
274 const int PP = td->PP;
275 const int xoff = td->xoff;
276 const int yoff = td->yoff;
277 const int P = FFMAX(s->nb_planes, s->nb_comps);
278 const int C = s->chars;
279 const int D = ((s->chars - s->dformat) >> 2) + s->dformat * 2;
280 const int W = (outlink->w - xoff) / (C * 10);
281 const int H = (outlink->h - yoff) / (PP * 12);
282 const char *format[4] = {"%02X\n", "%04X\n", "%03d\n", "%05d\n"};
283 const int slice_start = (W * jobnr) / nb_jobs;
284 const int slice_end = (W * (jobnr+1)) / nb_jobs;
285 int x, y, p;
286
287 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
288 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
289 FFDrawColor color = { { 0 } };
290 int value[4] = { 0 }, pp = 0;
291
292 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
293 for (p = 0; p < P; p++) {
294 char text[256];
295
296 if (!(s->components & (1 << p)))
297 continue;
298 snprintf(text, sizeof(text), format[D], value[p]);
299 draw_text(&s->draw, out, &s->white, xoff + x * C * 10 + 2, yoff + y * PP * 12 + pp * 10 + 2, text, 0);
300 pp++;
301 }
302 }
303 }
304
305 return 0;
306 }
307
308 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
309 {
310 AVFilterContext *ctx = inlink->dst;
311 DatascopeContext *s = ctx->priv;
312 AVFilterLink *outlink = ctx->outputs[0];
313 const int P = FFMAX(s->nb_planes, s->nb_comps);
314 ThreadData td = { 0 };
315 int ymaxlen = 0;
316 int xmaxlen = 0;
317 int PP = 0;
318 AVFrame *out;
319
320 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
321 if (!out) {
322 av_frame_free(&in);
323 return AVERROR(ENOMEM);
324 }
325 av_frame_copy_props(out, in);
326
327 ff_fill_rectangle(&s->draw, &s->black, out->data, out->linesize,
328 0, 0, outlink->w, outlink->h);
329
330 for (int p = 0; p < P; p++) {
331 if (s->components & (1 << p))
332 PP++;
333 }
334 PP = FFMAX(PP, 1);
335
336 if (s->axis) {
337 const int C = s->chars;
338 int Y = outlink->h / (PP * 12);
339 int X = outlink->w / (C * 10);
340 char text[256] = { 0 };
341 int x, y;
342
343 snprintf(text, sizeof(text), "%d", s->y + Y);
344 ymaxlen = strlen(text);
345 ymaxlen *= 10;
346 snprintf(text, sizeof(text), "%d", s->x + X);
347 xmaxlen = strlen(text);
348 xmaxlen *= 10;
349
350 Y = (outlink->h - xmaxlen) / (PP * 12);
351 X = (outlink->w - ymaxlen) / (C * 10);
352
353 for (y = 0; y < Y; y++) {
354 snprintf(text, sizeof(text), "%d", s->y + y);
355
356 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
357 0, xmaxlen + y * PP * 12 + (PP + 1) * PP - 2, ymaxlen, 10);
358
359 draw_text(&s->draw, out, &s->yellow, 2, xmaxlen + y * PP * 12 + (PP + 1) * PP, text, 0);
360 }
361
362 for (x = 0; x < X; x++) {
363 snprintf(text, sizeof(text), "%d", s->x + x);
364
365 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
366 ymaxlen + x * C * 10 + 2 * C - 2, 0, 10, xmaxlen);
367
368 draw_text(&s->draw, out, &s->yellow, ymaxlen + x * C * 10 + 2 * C, 2, text, 1);
369 }
370 }
371
372 td.in = in; td.out = out, td.yoff = xmaxlen, td.xoff = ymaxlen, td.PP = PP;
373 ff_filter_execute(ctx, s->filter, &td, NULL,
374 FFMIN(ff_filter_get_nb_threads(ctx), FFMAX(outlink->w / 20, 1)));
375
376 av_frame_free(&in);
377 return ff_filter_frame(outlink, out);
378 }
379
380 static int config_input(AVFilterLink *inlink)
381 {
382 DatascopeContext *s = inlink->dst->priv;
383 uint8_t alpha = s->opacity * 255;
384
385 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
386 ff_draw_init2(&s->draw, inlink->format, inlink->colorspace, inlink->color_range, 0);
387 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
388 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, alpha} );
389 ff_draw_color(&s->draw, &s->yellow, (uint8_t[]){ 255, 255, 0, 255} );
390 ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 77, 77, 77, 255} );
391 s->chars = (s->draw.desc->comp[0].depth + 7) / 8 * 2 + s->dformat;
392 s->nb_comps = s->draw.desc->nb_components;
393
394 switch (s->mode) {
395 case 0: s->filter = filter_mono; break;
396 case 1: s->filter = filter_color; break;
397 case 2: s->filter = filter_color2; break;
398 }
399
400 if (s->draw.desc->comp[0].depth <= 8) {
401 s->pick_color = pick_color8;
402 s->reverse_color = reverse_color8;
403 } else {
404 s->pick_color = pick_color16;
405 s->reverse_color = reverse_color16;
406 }
407
408 return 0;
409 }
410
411 static int config_output(AVFilterLink *outlink)
412 {
413 DatascopeContext *s = outlink->src->priv;
414
415 outlink->h = s->oh;
416 outlink->w = s->ow;
417 outlink->sample_aspect_ratio = (AVRational){1,1};
418
419 return 0;
420 }
421
422 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
423 char *res, int res_len, int flags)
424 {
425 int ret;
426
427 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
428 if (ret < 0)
429 return ret;
430
431 return config_input(ctx->inputs[0]);
432 }
433
434 static const AVFilterPad inputs[] = {
435 {
436 .name = "default",
437 .type = AVMEDIA_TYPE_VIDEO,
438 .filter_frame = filter_frame,
439 .config_props = config_input,
440 },
441 };
442
443 static const AVFilterPad outputs[] = {
444 {
445 .name = "default",
446 .type = AVMEDIA_TYPE_VIDEO,
447 .config_props = config_output,
448 },
449 };
450
451 const AVFilter ff_vf_datascope = {
452 .name = "datascope",
453 .description = NULL_IF_CONFIG_SMALL("Video data analysis."),
454 .priv_size = sizeof(DatascopeContext),
455 .priv_class = &datascope_class,
456 FILTER_INPUTS(inputs),
457 FILTER_OUTPUTS(outputs),
458 FILTER_QUERY_FUNC(query_formats),
459 .flags = AVFILTER_FLAG_SLICE_THREADS,
460 .process_command = process_command,
461 };
462
463 typedef struct PixscopeContext {
464 const AVClass *class;
465
466 float xpos, ypos;
467 float wx, wy;
468 int w, h;
469 float o;
470
471 int x, y;
472 int ww, wh;
473
474 int nb_planes;
475 int nb_comps;
476 int is_rgb;
477 uint8_t rgba_map[4];
478 FFDrawContext draw;
479 FFDrawColor dark;
480 FFDrawColor black;
481 FFDrawColor white;
482 FFDrawColor green;
483 FFDrawColor blue;
484 FFDrawColor red;
485 FFDrawColor *colors[4];
486
487 uint16_t values[4][80][80];
488
489 void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
490 } PixscopeContext;
491
492 #define POFFSET(x) offsetof(PixscopeContext, x)
493
494 static const AVOption pixscope_options[] = {
495 { "x", "set scope x offset", POFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
496 { "y", "set scope y offset", POFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
497 { "w", "set scope width", POFFSET(w), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGSR },
498 { "h", "set scope height", POFFSET(h), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGSR },
499 { "o", "set window opacity", POFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
500 { "wx", "set window x offset", POFFSET(wx), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGSR },
501 { "wy", "set window y offset", POFFSET(wy), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGSR },
502 { NULL }
503 };
504
505 AVFILTER_DEFINE_CLASS(pixscope);
506
507 static int pixscope_config_input(AVFilterLink *inlink)
508 {
509 PixscopeContext *s = inlink->dst->priv;
510
511 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
512 ff_draw_init(&s->draw, inlink->format, 0);
513 ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
514 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
515 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
516 ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
517 ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
518 ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
519 s->nb_comps = s->draw.desc->nb_components;
520 s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
521
522 if (s->is_rgb) {
523 s->colors[0] = &s->red;
524 s->colors[1] = &s->green;
525 s->colors[2] = &s->blue;
526 s->colors[3] = &s->white;
527 ff_fill_rgba_map(s->rgba_map, inlink->format);
528 } else {
529 s->colors[0] = &s->white;
530 s->colors[1] = &s->blue;
531 s->colors[2] = &s->red;
532 s->colors[3] = &s->white;
533 s->rgba_map[0] = 0;
534 s->rgba_map[1] = 1;
535 s->rgba_map[2] = 2;
536 s->rgba_map[3] = 3;
537 }
538
539 if (s->draw.desc->comp[0].depth <= 8) {
540 s->pick_color = pick_color8;
541 } else {
542 s->pick_color = pick_color16;
543 }
544
545 if (inlink->w < 640 || inlink->h < 480) {
546 av_log(inlink->dst, AV_LOG_ERROR, "min supported resolution is 640x480\n");
547 return AVERROR(EINVAL);
548 }
549
550 s->ww = 300;
551 s->wh = 300 * 1.6;
552 s->x = s->xpos * (inlink->w - 1);
553 s->y = s->ypos * (inlink->h - 1);
554 if (s->x + s->w >= inlink->w || s->y + s->h >= inlink->h) {
555 av_log(inlink->dst, AV_LOG_WARNING, "scope position is out of range, clipping\n");
556 s->x = FFMIN(s->x, inlink->w - s->w);
557 s->y = FFMIN(s->y, inlink->h - s->h);
558 }
559
560 return 0;
561 }
562
563 #define SQR(x) ((x)*(x))
564
565 static int pixscope_filter_frame(AVFilterLink *inlink, AVFrame *in)
566 {
567 AVFilterContext *ctx = inlink->dst;
568 PixscopeContext *s = ctx->priv;
569 AVFilterLink *outlink = ctx->outputs[0];
570 AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
571 int max[4] = { 0 }, min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
572 float average[4] = { 0 };
573 double std[4] = { 0 }, rms[4] = { 0 };
574 const char rgba[4] = { 'R', 'G', 'B', 'A' };
575 const char yuva[4] = { 'Y', 'U', 'V', 'A' };
576 int x, y, X, Y, i, w, h;
577 char text[128];
578
579 if (!out) {
580 av_frame_free(&in);
581 return AVERROR(ENOMEM);
582 }
583 av_frame_copy_props(out, in);
584 av_frame_copy(out, in);
585
586 w = s->ww / s->w;
587 h = s->ww / s->h;
588
589 if (s->wx >= 0) {
590 X = (in->width - s->ww) * s->wx;
591 } else {
592 X = (in->width - s->ww) * -s->wx;
593 }
594 if (s->wy >= 0) {
595 Y = (in->height - s->wh) * s->wy;
596 } else {
597 Y = (in->height - s->wh) * -s->wy;
598 }
599
600 if (s->wx < 0) {
601 if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
602 s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
603 X = (in->width - s->ww) * (1 + s->wx);
604 }
605 }
606
607 if (s->wy < 0) {
608 if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
609 s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
610 Y = (in->height - s->wh) * (1 + s->wy);
611 }
612 }
613
614 ff_blend_rectangle(&s->draw, &s->dark, out->data, out->linesize,
615 out->width, out->height,
616 X,
617 Y,
618 s->ww,
619 s->wh);
620
621 for (y = 0; y < s->h; y++) {
622 for (x = 0; x < s->w; x++) {
623 FFDrawColor color = { { 0 } };
624 int value[4] = { 0 };
625
626 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
627 ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
628 x * w + (s->ww - 4 - (s->w * w)) / 2 + X, y * h + 2 + Y, w, h);
629 for (i = 0; i < 4; i++) {
630 s->values[i][x][y] = value[i];
631 rms[i] += (double)value[i] * (double)value[i];
632 average[i] += value[i];
633 min[i] = FFMIN(min[i], value[i]);
634 max[i] = FFMAX(max[i], value[i]);
635 }
636 }
637 }
638
639 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
640 out->width, out->height,
641 s->x - 2, s->y - 2, s->w + 4, 1);
642
643 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
644 out->width, out->height,
645 s->x - 1, s->y - 1, s->w + 2, 1);
646
647 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
648 out->width, out->height,
649 s->x - 1, s->y - 1, 1, s->h + 2);
650
651 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
652 out->width, out->height,
653 s->x - 2, s->y - 2, 1, s->h + 4);
654
655 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
656 out->width, out->height,
657 s->x - 1, s->y + 1 + s->h, s->w + 3, 1);
658
659 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
660 out->width, out->height,
661 s->x - 2, s->y + 2 + s->h, s->w + 4, 1);
662
663 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
664 out->width, out->height,
665 s->x + 1 + s->w, s->y - 1, 1, s->h + 2);
666
667 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
668 out->width, out->height,
669 s->x + 2 + s->w, s->y - 2, 1, s->h + 5);
670
671 for (i = 0; i < 4; i++) {
672 rms[i] /= s->w * s->h;
673 rms[i] = sqrt(rms[i]);
674 average[i] /= s->w * s->h;
675 }
676
677 for (y = 0; y < s->h; y++) {
678 for (x = 0; x < s->w; x++) {
679 for (i = 0; i < 4; i++)
680 std[i] += SQR(s->values[i][x][y] - average[i]);
681 }
682 }
683
684 for (i = 0; i < 4; i++) {
685 std[i] /= s->w * s->h;
686 std[i] = sqrt(std[i]);
687 }
688
689 snprintf(text, sizeof(text), "CH AVG MIN MAX RMS\n");
690 draw_text(&s->draw, out, &s->white, X + 28, Y + s->ww + 5, text, 0);
691 for (i = 0; i < s->nb_comps; i++) {
692 int c = s->rgba_map[i];
693
694 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]);
695 draw_text(&s->draw, out, s->colors[i], X + 28, Y + s->ww + 15 * (i + 1), text, 0);
696 }
697 snprintf(text, sizeof(text), "CH STD\n");
698 draw_text(&s->draw, out, &s->white, X + 28, Y + s->ww + 15 * (0 + 5), text, 0);
699 for (i = 0; i < s->nb_comps; i++) {
700 int c = s->rgba_map[i];
701
702 snprintf(text, sizeof(text), "%c %07.2f\n", s->is_rgb ? rgba[i] : yuva[i], std[c]);
703 draw_text(&s->draw, out, s->colors[i], X + 28, Y + s->ww + 15 * (i + 6), text, 0);
704 }
705
706 av_frame_free(&in);
707 return ff_filter_frame(outlink, out);
708 }
709
710 static int pixscope_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
711 char *res, int res_len, int flags)
712 {
713 int ret;
714
715 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
716 if (ret < 0)
717 return ret;
718
719 return pixscope_config_input(ctx->inputs[0]);
720 }
721
722 static const AVFilterPad pixscope_inputs[] = {
723 {
724 .name = "default",
725 .type = AVMEDIA_TYPE_VIDEO,
726 .filter_frame = pixscope_filter_frame,
727 .config_props = pixscope_config_input,
728 },
729 };
730
731 const AVFilter ff_vf_pixscope = {
732 .name = "pixscope",
733 .description = NULL_IF_CONFIG_SMALL("Pixel data analysis."),
734 .priv_size = sizeof(PixscopeContext),
735 .priv_class = &pixscope_class,
736 FILTER_INPUTS(pixscope_inputs),
737 FILTER_OUTPUTS(ff_video_default_filterpad),
738 FILTER_QUERY_FUNC(query_formats),
739 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
740 .process_command = pixscope_process_command,
741 };
742
743 typedef struct PixelValues {
744 uint16_t p[4];
745 } PixelValues;
746
747 typedef struct OscilloscopeContext {
748 const AVClass *class;
749
750 float xpos, ypos;
751 float tx, ty;
752 float size;
753 float tilt;
754 float theight, twidth;
755 float o;
756 int components;
757 int grid;
758 int statistics;
759 int scope;
760
761 int x1, y1, x2, y2;
762 int ox, oy;
763 int height, width;
764
765 int max;
766 int nb_planes;
767 int nb_comps;
768 int is_rgb;
769 uint8_t rgba_map[4];
770 FFDrawContext draw;
771 FFDrawColor dark;
772 FFDrawColor black;
773 FFDrawColor white;
774 FFDrawColor green;
775 FFDrawColor blue;
776 FFDrawColor red;
777 FFDrawColor cyan;
778 FFDrawColor magenta;
779 FFDrawColor gray;
780 FFDrawColor *colors[4];
781
782 int nb_values;
783 PixelValues *values;
784
785 void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
786 void (*draw_trace)(struct OscilloscopeContext *s, AVFrame *frame);
787 } OscilloscopeContext;
788
789 #define OOFFSET(x) offsetof(OscilloscopeContext, x)
790
791 static const AVOption oscilloscope_options[] = {
792 { "x", "set scope x position", OOFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
793 { "y", "set scope y position", OOFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
794 { "s", "set scope size", OOFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGSR },
795 { "t", "set scope tilt", OOFFSET(tilt), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
796 { "o", "set trace opacity", OOFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGSR },
797 { "tx", "set trace x position", OOFFSET(tx), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
798 { "ty", "set trace y position", OOFFSET(ty), AV_OPT_TYPE_FLOAT, {.dbl=0.9}, 0, 1, FLAGSR },
799 { "tw", "set trace width", OOFFSET(twidth), AV_OPT_TYPE_FLOAT, {.dbl=0.8},.1, 1, FLAGSR },
800 { "th", "set trace height", OOFFSET(theight), AV_OPT_TYPE_FLOAT, {.dbl=0.3},.1, 1, FLAGSR },
801 { "c", "set components to trace", OOFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGSR },
802 { "g", "draw trace grid", OOFFSET(grid), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
803 { "st", "draw statistics", OOFFSET(statistics), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
804 { "sc", "draw scope", OOFFSET(scope), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
805 { NULL }
806 };
807
808 AVFILTER_DEFINE_CLASS(oscilloscope);
809
810 static void oscilloscope_uninit(AVFilterContext *ctx)
811 {
812 OscilloscopeContext *s = ctx->priv;
813
814 av_freep(&s->values);
815 }
816
817 static void draw_line(FFDrawContext *draw, int x0, int y0, int x1, int y1,
818 AVFrame *out, FFDrawColor *color)
819 {
820 int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
821 int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
822 int err = (dx > dy ? dx : -dy) / 2, e2;
823 int p, i;
824
825 for (;;) {
826 if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
827 for (p = 0; p < draw->nb_planes; p++) {
828 if (draw->desc->comp[p].depth == 8) {
829 if (draw->nb_planes == 1) {
830 for (i = 0; i < draw->desc->nb_components; i++) {
831 out->data[0][y0 * out->linesize[0] + x0 * draw->pixelstep[0] + i] = color->comp[0].u8[i];
832 }
833 } else {
834 out->data[p][out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p])] = color->comp[p].u8[0];
835 }
836 } else {
837 if (draw->nb_planes == 1) {
838 for (i = 0; i < draw->desc->nb_components; i++) {
839 AV_WN16(out->data[0] + y0 * out->linesize[0] + (x0 * draw->pixelstep[0] + i), color->comp[0].u16[i]);
840 }
841 } else {
842 AV_WN16(out->data[p] + out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p]) * 2, color->comp[p].u16[0]);
843 }
844 }
845 }
846 }
847
848 if (x0 == x1 && y0 == y1)
849 break;
850
851 e2 = err;
852
853 if (e2 >-dx) {
854 err -= dy;
855 x0 += sx;
856 }
857
858 if (e2 < dy) {
859 err += dx;
860 y0 += sy;
861 }
862 }
863 }
864
865 static void draw_trace8(OscilloscopeContext *s, AVFrame *frame)
866 {
867 int i, c;
868
869 for (i = 1; i < s->nb_values; i++) {
870 for (c = 0; c < s->nb_comps; c++) {
871 if ((1 << c) & s->components) {
872 int x = i * s->width / s->nb_values;
873 int px = (i - 1) * s->width / s->nb_values;
874 int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / 256;
875 int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / 256;
876
877 draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
878 }
879 }
880 }
881 }
882
883
884 static void draw_trace16(OscilloscopeContext *s, AVFrame *frame)
885 {
886 int i, c;
887
888 for (i = 1; i < s->nb_values; i++) {
889 for (c = 0; c < s->nb_comps; c++) {
890 if ((1 << c) & s->components) {
891 int x = i * s->width / s->nb_values;
892 int px = (i - 1) * s->width / s->nb_values;
893 int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / s->max;
894 int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / s->max;
895
896 draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
897 }
898 }
899 }
900 }
901
902 static void update_oscilloscope(AVFilterContext *ctx)
903 {
904 OscilloscopeContext *s = ctx->priv;
905 AVFilterLink *inlink = ctx->inputs[0];
906 int cx, cy, size;
907 double tilt;
908
909 ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
910 s->height = s->theight * inlink->h;
911 s->width = s->twidth * inlink->w;
912 size = hypot(inlink->w, inlink->h);
913 size *= s->size;
914 tilt = (s->tilt - 0.5) * M_PI;
915 cx = s->xpos * (inlink->w - 1);
916 cy = s->ypos * (inlink->h - 1);
917 s->x1 = cx - size / 2.0 * cos(tilt);
918 s->x2 = cx + size / 2.0 * cos(tilt);
919 s->y1 = cy - size / 2.0 * sin(tilt);
920 s->y2 = cy + size / 2.0 * sin(tilt);
921 s->ox = (inlink->w - s->width) * s->tx;
922 s->oy = (inlink->h - s->height) * s->ty;
923 }
924
925 static int oscilloscope_config_input(AVFilterLink *inlink)
926 {
927 OscilloscopeContext *s = inlink->dst->priv;
928 int size;
929
930 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
931 ff_draw_init(&s->draw, inlink->format, 0);
932 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
933 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
934 ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
935 ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
936 ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
937 ff_draw_color(&s->draw, &s->cyan, (uint8_t[]){ 0, 255, 255, 255} );
938 ff_draw_color(&s->draw, &s->magenta, (uint8_t[]){ 255, 0, 255, 255} );
939 ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 128, 128, 128, 255} );
940 s->nb_comps = s->draw.desc->nb_components;
941 s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
942
943 if (s->is_rgb) {
944 s->colors[0] = &s->red;
945 s->colors[1] = &s->green;
946 s->colors[2] = &s->blue;
947 s->colors[3] = &s->white;
948 ff_fill_rgba_map(s->rgba_map, inlink->format);
949 } else {
950 s->colors[0] = &s->white;
951 s->colors[1] = &s->cyan;
952 s->colors[2] = &s->magenta;
953 s->colors[3] = &s->white;
954 s->rgba_map[0] = 0;
955 s->rgba_map[1] = 1;
956 s->rgba_map[2] = 2;
957 s->rgba_map[3] = 3;
958 }
959
960 if (s->draw.desc->comp[0].depth <= 8) {
961 s->pick_color = pick_color8;
962 s->draw_trace = draw_trace8;
963 } else {
964 s->pick_color = pick_color16;
965 s->draw_trace = draw_trace16;
966 }
967
968 s->max = (1 << s->draw.desc->comp[0].depth);
969 size = hypot(inlink->w, inlink->h);
970
971 s->values = av_calloc(size, sizeof(*s->values));
972 if (!s->values)
973 return AVERROR(ENOMEM);
974
975 update_oscilloscope(inlink->dst);
976
977 return 0;
978 }
979
980 static void draw_scope(OscilloscopeContext *s, int x0, int y0, int x1, int y1,
981 AVFrame *out, PixelValues *p, int state)
982 {
983 int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
984 int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
985 int err = (dx > dy ? dx : -dy) / 2, e2;
986
987 for (;;) {
988 if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
989 FFDrawColor color = { { 0 } };
990 int value[4] = { 0 };
991
992 s->pick_color(&s->draw, &color, out, x0, y0, value);
993 s->values[s->nb_values].p[0] = value[0];
994 s->values[s->nb_values].p[1] = value[1];
995 s->values[s->nb_values].p[2] = value[2];
996 s->values[s->nb_values].p[3] = value[3];
997 s->nb_values++;
998
999 if (s->scope) {
1000 if (s->draw.desc->comp[0].depth == 8) {
1001 if (s->draw.nb_planes == 1) {
1002 int i;
1003
1004 for (i = 0; i < s->nb_comps; i++)
1005 out->data[0][out->linesize[0] * y0 + x0 * s->draw.pixelstep[0] + i] = 255 * ((s->nb_values + state) & 1);
1006 } else {
1007 out->data[0][out->linesize[0] * y0 + x0] = 255 * ((s->nb_values + state) & 1);
1008 }
1009 } else {
1010 if (s->draw.nb_planes == 1) {
1011 int i;
1012
1013 for (i = 0; i < s->nb_comps; i++)
1014 AV_WN16(out->data[0] + out->linesize[0] * y0 + x0 * s->draw.pixelstep[0] + i, (s->max - 1) * ((s->nb_values + state) & 1));
1015 } else {
1016 AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0, (s->max - 1) * ((s->nb_values + state) & 1));
1017 }
1018 }
1019 }
1020 }
1021
1022 if (x0 == x1 && y0 == y1)
1023 break;
1024
1025 e2 = err;
1026
1027 if (e2 >-dx) {
1028 err -= dy;
1029 x0 += sx;
1030 }
1031
1032 if (e2 < dy) {
1033 err += dx;
1034 y0 += sy;
1035 }
1036 }
1037 }
1038
1039 static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
1040 {
1041 AVFilterContext *ctx = inlink->dst;
1042 OscilloscopeContext *s = ctx->priv;
1043 AVFilterLink *outlink = ctx->outputs[0];
1044 float average[4] = { 0 };
1045 int max[4] = { 0 };
1046 int min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
1047 int i, c;
1048
1049 s->nb_values = 0;
1050 draw_scope(s, s->x1, s->y1, s->x2, s->y2, frame, s->values, inlink->frame_count_in & 1);
1051 ff_blend_rectangle(&s->draw, &s->dark, frame->data, frame->linesize,
1052 frame->width, frame->height,
1053 s->ox, s->oy, s->width, s->height + 20 * s->statistics);
1054
1055 if (s->grid && outlink->h >= 10) {
1056 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
1057 s->ox, s->oy, s->width - 1, 1);
1058
1059 for (i = 1; i < 5; i++) {
1060 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
1061 s->ox, s->oy + i * (s->height - 1) / 4, s->width, 1);
1062 }
1063
1064 for (i = 0; i < 10; i++) {
1065 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
1066 s->ox + i * (s->width - 1) / 10, s->oy, 1, s->height);
1067 }
1068
1069 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
1070 s->ox + s->width - 1, s->oy, 1, s->height);
1071 }
1072
1073 s->draw_trace(s, frame);
1074
1075 for (i = 0; i < s->nb_values; i++) {
1076 for (c = 0; c < s->nb_comps; c++) {
1077 if ((1 << c) & s->components) {
1078 max[c] = FFMAX(max[c], s->values[i].p[s->rgba_map[c]]);
1079 min[c] = FFMIN(min[c], s->values[i].p[s->rgba_map[c]]);
1080 average[c] += s->values[i].p[s->rgba_map[c]];
1081 }
1082 }
1083 }
1084 for (c = 0; c < s->nb_comps; c++) {
1085 average[c] /= s->nb_values;
1086 }
1087
1088 if (s->statistics && s->height > 10 && s->width > 280 * av_popcount(s->components)) {
1089 for (c = 0, i = 0; c < s->nb_comps; c++) {
1090 if ((1 << c) & s->components) {
1091 const char rgba[4] = { 'R', 'G', 'B', 'A' };
1092 const char yuva[4] = { 'Y', 'U', 'V', 'A' };
1093 char text[128];
1094
1095 snprintf(text, sizeof(text), "%c avg:%.1f min:%d max:%d\n", s->is_rgb ? rgba[c] : yuva[c], average[c], min[c], max[c]);
1096 draw_text(&s->draw, frame, &s->white, s->ox + 2 + 280 * i++, s->oy + s->height + 4, text, 0);
1097 }
1098 }
1099 }
1100
1101 return ff_filter_frame(outlink, frame);
1102 }
1103
1104 static int oscilloscope_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
1105 char *res, int res_len, int flags)
1106 {
1107 int ret;
1108
1109 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
1110 if (ret < 0)
1111 return ret;
1112
1113 update_oscilloscope(ctx);
1114
1115 return 0;
1116 }
1117
1118 static const AVFilterPad oscilloscope_inputs[] = {
1119 {
1120 .name = "default",
1121 .type = AVMEDIA_TYPE_VIDEO,
1122 .flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
1123 .filter_frame = oscilloscope_filter_frame,
1124 .config_props = oscilloscope_config_input,
1125 },
1126 };
1127
1128 const AVFilter ff_vf_oscilloscope = {
1129 .name = "oscilloscope",
1130 .description = NULL_IF_CONFIG_SMALL("2D Video Oscilloscope."),
1131 .priv_size = sizeof(OscilloscopeContext),
1132 .priv_class = &oscilloscope_class,
1133 .uninit = oscilloscope_uninit,
1134 FILTER_INPUTS(oscilloscope_inputs),
1135 FILTER_OUTPUTS(ff_video_default_filterpad),
1136 FILTER_QUERY_FUNC(query_formats),
1137 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
1138 .process_command = oscilloscope_process_command,
1139 };
1140