2 * Copyright (c) 2016 Paul B Mahol
4 * This file is part of FFmpeg.
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.
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.
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
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"
28 #include "drawutils.h"
33 typedef struct DatascopeContext {
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);
55 #define OFFSET(x) offsetof(DatascopeContext, x)
56 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
57 #define FLAGSR AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
59 static const AVOption datascope_options[] = {
60 { "size", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
61 { "s", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
62 { "x", "set x offset", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
63 { "y", "set y offset", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
64 { "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mode" },
65 { "mono", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
66 { "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
67 { "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode" },
68 { "axis", "draw column/row numbers", OFFSET(axis), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
69 { "opacity", "set background opacity", OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=0.75}, 0, 1, FLAGS },
73 AVFILTER_DEFINE_CLASS(datascope);
75 static int query_formats(AVFilterContext *ctx)
77 return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
80 static void draw_text(FFDrawContext *draw, AVFrame *frame, FFDrawColor *color,
81 int x0, int y0, const uint8_t *text, int vertical)
85 for (; *text; text++) {
91 ff_blend_mask(draw, color, frame->data, frame->linesize,
92 frame->width, frame->height,
93 avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
103 static void pick_color8(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
107 color->rgba[3] = 255;
108 for (p = 0; p < draw->nb_planes; p++) {
109 if (draw->nb_planes == 1) {
110 for (i = 0; i < 4; i++) {
111 value[i] = in->data[0][y * in->linesize[0] + x * draw->pixelstep[0] + i];
112 color->comp[0].u8[i] = value[i];
115 value[p] = in->data[p][(y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p])];
116 color->comp[p].u8[0] = value[p];
121 static void pick_color16(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
125 color->rgba[3] = 255;
126 for (p = 0; p < draw->nb_planes; p++) {
127 if (draw->nb_planes == 1) {
128 for (i = 0; i < 4; i++) {
129 value[i] = AV_RL16(in->data[0] + y * in->linesize[0] + x * draw->pixelstep[0] + i * 2);
130 color->comp[0].u16[i] = value[i];
133 value[p] = AV_RL16(in->data[p] + (y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p]) * 2);
134 color->comp[p].u16[0] = value[p];
139 static void reverse_color8(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
143 reverse->rgba[3] = 255;
144 for (p = 0; p < draw->nb_planes; p++) {
145 reverse->comp[p].u8[0] = color->comp[p].u8[0] > 127 ? 0 : 255;
146 reverse->comp[p].u8[1] = color->comp[p].u8[1] > 127 ? 0 : 255;
147 reverse->comp[p].u8[2] = color->comp[p].u8[2] > 127 ? 0 : 255;
151 static void reverse_color16(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
155 reverse->rgba[3] = 255;
156 for (p = 0; p < draw->nb_planes; p++) {
157 const unsigned max = (1 << draw->desc->comp[p].depth) - 1;
158 const unsigned mid = (max + 1) / 2;
160 reverse->comp[p].u16[0] = color->comp[p].u16[0] > mid ? 0 : max;
161 reverse->comp[p].u16[1] = color->comp[p].u16[1] > mid ? 0 : max;
162 reverse->comp[p].u16[2] = color->comp[p].u16[2] > mid ? 0 : max;
166 typedef struct ThreadData {
171 static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
173 DatascopeContext *s = ctx->priv;
174 AVFilterLink *outlink = ctx->outputs[0];
175 AVFilterLink *inlink = ctx->inputs[0];
176 ThreadData *td = arg;
177 AVFrame *in = td->in;
178 AVFrame *out = td->out;
179 const int xoff = td->xoff;
180 const int yoff = td->yoff;
181 const int P = FFMAX(s->nb_planes, s->nb_comps);
182 const int C = s->chars;
183 const int W = (outlink->w - xoff) / (C * 10);
184 const int H = (outlink->h - yoff) / (P * 12);
185 const char *format[2] = {"%02X\n", "%04X\n"};
186 const int slice_start = (W * jobnr) / nb_jobs;
187 const int slice_end = (W * (jobnr+1)) / nb_jobs;
190 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
191 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
192 FFDrawColor color = { { 0 } };
193 FFDrawColor reverse = { { 0 } };
194 int value[4] = { 0 };
196 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
197 s->reverse_color(&s->draw, &color, &reverse);
198 ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
199 xoff + x * C * 10, yoff + y * P * 12, C * 10, P * 12);
201 for (p = 0; p < P; p++) {
204 snprintf(text, sizeof(text), format[C>>2], value[p]);
205 draw_text(&s->draw, out, &reverse, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
213 static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
215 DatascopeContext *s = ctx->priv;
216 AVFilterLink *outlink = ctx->outputs[0];
217 AVFilterLink *inlink = ctx->inputs[0];
218 ThreadData *td = arg;
219 AVFrame *in = td->in;
220 AVFrame *out = td->out;
221 const int xoff = td->xoff;
222 const int yoff = td->yoff;
223 const int P = FFMAX(s->nb_planes, s->nb_comps);
224 const int C = s->chars;
225 const int W = (outlink->w - xoff) / (C * 10);
226 const int H = (outlink->h - yoff) / (P * 12);
227 const char *format[2] = {"%02X\n", "%04X\n"};
228 const int slice_start = (W * jobnr) / nb_jobs;
229 const int slice_end = (W * (jobnr+1)) / nb_jobs;
232 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
233 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
234 FFDrawColor color = { { 0 } };
235 int value[4] = { 0 };
237 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
239 for (p = 0; p < P; p++) {
242 snprintf(text, sizeof(text), format[C>>2], value[p]);
243 draw_text(&s->draw, out, &color, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
251 static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
253 DatascopeContext *s = ctx->priv;
254 AVFilterLink *outlink = ctx->outputs[0];
255 AVFilterLink *inlink = ctx->inputs[0];
256 ThreadData *td = arg;
257 AVFrame *in = td->in;
258 AVFrame *out = td->out;
259 const int xoff = td->xoff;
260 const int yoff = td->yoff;
261 const int P = FFMAX(s->nb_planes, s->nb_comps);
262 const int C = s->chars;
263 const int W = (outlink->w - xoff) / (C * 10);
264 const int H = (outlink->h - yoff) / (P * 12);
265 const char *format[2] = {"%02X\n", "%04X\n"};
266 const int slice_start = (W * jobnr) / nb_jobs;
267 const int slice_end = (W * (jobnr+1)) / nb_jobs;
270 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
271 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
272 FFDrawColor color = { { 0 } };
273 int value[4] = { 0 };
275 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
276 for (p = 0; p < P; p++) {
279 snprintf(text, sizeof(text), format[C>>2], value[p]);
280 draw_text(&s->draw, out, &s->white, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
288 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
290 AVFilterContext *ctx = inlink->dst;
291 DatascopeContext *s = ctx->priv;
292 AVFilterLink *outlink = ctx->outputs[0];
293 ThreadData td = { 0 };
298 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
301 return AVERROR(ENOMEM);
305 ff_fill_rectangle(&s->draw, &s->black, out->data, out->linesize,
306 0, 0, outlink->w, outlink->h);
309 const int P = FFMAX(s->nb_planes, s->nb_comps);
310 const int C = s->chars;
311 int Y = outlink->h / (P * 12);
312 int X = outlink->w / (C * 10);
313 char text[256] = { 0 };
316 snprintf(text, sizeof(text), "%d", s->y + Y);
317 ymaxlen = strlen(text);
319 snprintf(text, sizeof(text), "%d", s->x + X);
320 xmaxlen = strlen(text);
323 Y = (outlink->h - xmaxlen) / (P * 12);
324 X = (outlink->w - ymaxlen) / (C * 10);
326 for (y = 0; y < Y; y++) {
327 snprintf(text, sizeof(text), "%d", s->y + y);
329 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
330 0, xmaxlen + y * P * 12 + (P + 1) * P - 2, ymaxlen, 10);
332 draw_text(&s->draw, out, &s->yellow, 2, xmaxlen + y * P * 12 + (P + 1) * P, text, 0);
335 for (x = 0; x < X; x++) {
336 snprintf(text, sizeof(text), "%d", s->x + x);
338 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
339 ymaxlen + x * C * 10 + 2 * C - 2, 0, 10, xmaxlen);
341 draw_text(&s->draw, out, &s->yellow, ymaxlen + x * C * 10 + 2 * C, 2, text, 1);
345 td.in = in; td.out = out, td.yoff = xmaxlen, td.xoff = ymaxlen;
346 ctx->internal->execute(ctx, s->filter, &td, NULL, FFMIN(ff_filter_get_nb_threads(ctx), FFMAX(outlink->w / 20, 1)));
349 return ff_filter_frame(outlink, out);
352 static int config_input(AVFilterLink *inlink)
354 DatascopeContext *s = inlink->dst->priv;
355 uint8_t alpha = s->opacity * 255;
357 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
358 ff_draw_init(&s->draw, inlink->format, 0);
359 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
360 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, alpha} );
361 ff_draw_color(&s->draw, &s->yellow, (uint8_t[]){ 255, 255, 0, 255} );
362 ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 77, 77, 77, 255} );
363 s->chars = (s->draw.desc->comp[0].depth + 7) / 8 * 2;
364 s->nb_comps = s->draw.desc->nb_components;
367 case 0: s->filter = filter_mono; break;
368 case 1: s->filter = filter_color; break;
369 case 2: s->filter = filter_color2; break;
372 if (s->draw.desc->comp[0].depth <= 8) {
373 s->pick_color = pick_color8;
374 s->reverse_color = reverse_color8;
376 s->pick_color = pick_color16;
377 s->reverse_color = reverse_color16;
383 static int config_output(AVFilterLink *outlink)
385 DatascopeContext *s = outlink->src->priv;
389 outlink->sample_aspect_ratio = (AVRational){1,1};
394 static const AVFilterPad inputs[] = {
397 .type = AVMEDIA_TYPE_VIDEO,
398 .filter_frame = filter_frame,
399 .config_props = config_input,
404 static const AVFilterPad outputs[] = {
407 .type = AVMEDIA_TYPE_VIDEO,
408 .config_props = config_output,
413 AVFilter ff_vf_datascope = {
415 .description = NULL_IF_CONFIG_SMALL("Video data analysis."),
416 .priv_size = sizeof(DatascopeContext),
417 .priv_class = &datascope_class,
418 .query_formats = query_formats,
421 .flags = AVFILTER_FLAG_SLICE_THREADS,
424 typedef struct PixscopeContext {
425 const AVClass *class;
446 FFDrawColor *colors[4];
448 void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
451 #define POFFSET(x) offsetof(PixscopeContext, x)
453 static const AVOption pixscope_options[] = {
454 { "x", "set scope x offset", POFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
455 { "y", "set scope y offset", POFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
456 { "w", "set scope width", POFFSET(w), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGS },
457 { "h", "set scope height", POFFSET(h), AV_OPT_TYPE_INT, {.i64=7}, 1, 80, FLAGS },
458 { "o", "set window opacity", POFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
459 { "wx", "set window x offset", POFFSET(wx), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGS },
460 { "wy", "set window y offset", POFFSET(wy), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 1, FLAGS },
464 AVFILTER_DEFINE_CLASS(pixscope);
466 static int pixscope_config_input(AVFilterLink *inlink)
468 PixscopeContext *s = inlink->dst->priv;
470 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
471 ff_draw_init(&s->draw, inlink->format, 0);
472 ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
473 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
474 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
475 ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
476 ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
477 ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
478 s->nb_comps = s->draw.desc->nb_components;
479 s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
482 s->colors[0] = &s->red;
483 s->colors[1] = &s->green;
484 s->colors[2] = &s->blue;
485 s->colors[3] = &s->white;
486 ff_fill_rgba_map(s->rgba_map, inlink->format);
488 s->colors[0] = &s->white;
489 s->colors[1] = &s->blue;
490 s->colors[2] = &s->red;
491 s->colors[3] = &s->white;
498 if (s->draw.desc->comp[0].depth <= 8) {
499 s->pick_color = pick_color8;
501 s->pick_color = pick_color16;
504 if (inlink->w < 640 || inlink->h < 480) {
505 av_log(inlink->dst, AV_LOG_ERROR, "min supported resolution is 640x480\n");
506 return AVERROR(EINVAL);
511 s->x = s->xpos * (inlink->w - 1);
512 s->y = s->ypos * (inlink->h - 1);
513 if (s->x + s->w >= inlink->w || s->y + s->h >= inlink->h) {
514 av_log(inlink->dst, AV_LOG_WARNING, "scope position is out of range, clipping\n");
515 s->x = FFMIN(s->x, inlink->w - s->w);
516 s->y = FFMIN(s->y, inlink->h - s->h);
522 static int pixscope_filter_frame(AVFilterLink *inlink, AVFrame *in)
524 AVFilterContext *ctx = inlink->dst;
525 PixscopeContext *s = ctx->priv;
526 AVFilterLink *outlink = ctx->outputs[0];
527 AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
528 int max[4] = { 0 }, min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
529 float average[4] = { 0 };
530 double rms[4] = { 0 };
531 const char rgba[4] = { 'R', 'G', 'B', 'A' };
532 const char yuva[4] = { 'Y', 'U', 'V', 'A' };
533 int x, y, X, Y, i, w, h;
538 return AVERROR(ENOMEM);
540 av_frame_copy_props(out, in);
541 av_frame_copy(out, in);
547 X = (in->width - s->ww) * s->wx;
549 X = (in->width - s->ww) * -s->wx;
552 Y = (in->height - s->wh) * s->wy;
554 Y = (in->height - s->wh) * -s->wy;
558 if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
559 s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
560 X = (in->width - s->ww) * (1 + s->wx);
565 if (s->x + s->w >= X && (s->x + s->w <= X + s->ww) &&
566 s->y + s->h >= Y && (s->y + s->h <= Y + s->wh)) {
567 Y = (in->height - s->wh) * (1 + s->wy);
571 ff_blend_rectangle(&s->draw, &s->dark, out->data, out->linesize,
572 out->width, out->height,
578 for (y = 0; y < s->h; y++) {
579 for (x = 0; x < s->w; x++) {
580 FFDrawColor color = { { 0 } };
581 int value[4] = { 0 };
583 s->pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
584 ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
585 x * w + (s->ww - 4 - (s->w * w)) / 2 + X, y * h + 2 + Y, w, h);
586 for (i = 0; i < 4; i++) {
587 rms[i] += (double)value[i] * (double)value[i];
588 average[i] += value[i];
589 min[i] = FFMIN(min[i], value[i]);
590 max[i] = FFMAX(max[i], value[i]);
595 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
596 out->width, out->height,
597 s->x - 2, s->y - 2, s->w + 4, 1);
599 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
600 out->width, out->height,
601 s->x - 1, s->y - 1, s->w + 2, 1);
603 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
604 out->width, out->height,
605 s->x - 1, s->y - 1, 1, s->h + 2);
607 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
608 out->width, out->height,
609 s->x - 2, s->y - 2, 1, s->h + 4);
611 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
612 out->width, out->height,
613 s->x - 1, s->y + 1 + s->h, s->w + 3, 1);
615 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
616 out->width, out->height,
617 s->x - 2, s->y + 2 + s->h, s->w + 4, 1);
619 ff_blend_rectangle(&s->draw, &s->white, out->data, out->linesize,
620 out->width, out->height,
621 s->x + 1 + s->w, s->y - 1, 1, s->h + 2);
623 ff_blend_rectangle(&s->draw, &s->black, out->data, out->linesize,
624 out->width, out->height,
625 s->x + 2 + s->w, s->y - 2, 1, s->h + 5);
627 for (i = 0; i < 4; i++) {
628 rms[i] /= s->w * s->h;
629 rms[i] = sqrt(rms[i]);
630 average[i] /= s->w * s->h;
633 snprintf(text, sizeof(text), "CH AVG MIN MAX RMS\n");
634 draw_text(&s->draw, out, &s->white, X + 28, Y + s->ww + 20, text, 0);
635 for (i = 0; i < s->nb_comps; i++) {
636 int c = s->rgba_map[i];
638 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]);
639 draw_text(&s->draw, out, s->colors[i], X + 28, Y + s->ww + 20 * (i + 2), text, 0);
643 return ff_filter_frame(outlink, out);
646 static const AVFilterPad pixscope_inputs[] = {
649 .type = AVMEDIA_TYPE_VIDEO,
650 .filter_frame = pixscope_filter_frame,
651 .config_props = pixscope_config_input,
656 static const AVFilterPad pixscope_outputs[] = {
659 .type = AVMEDIA_TYPE_VIDEO,
664 AVFilter ff_vf_pixscope = {
666 .description = NULL_IF_CONFIG_SMALL("Pixel data analysis."),
667 .priv_size = sizeof(PixscopeContext),
668 .priv_class = &pixscope_class,
669 .query_formats = query_formats,
670 .inputs = pixscope_inputs,
671 .outputs = pixscope_outputs,
672 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
675 typedef struct PixelValues {
679 typedef struct OscilloscopeContext {
680 const AVClass *class;
686 float theight, twidth;
712 FFDrawColor *colors[4];
717 void (*pick_color)(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value);
718 void (*draw_trace)(struct OscilloscopeContext *s, AVFrame *frame);
719 } OscilloscopeContext;
721 #define OOFFSET(x) offsetof(OscilloscopeContext, x)
723 static const AVOption oscilloscope_options[] = {
724 { "x", "set scope x position", OOFFSET(xpos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
725 { "y", "set scope y position", OOFFSET(ypos), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
726 { "s", "set scope size", OOFFSET(size), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGSR },
727 { "t", "set scope tilt", OOFFSET(tilt), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
728 { "o", "set trace opacity", OOFFSET(o), AV_OPT_TYPE_FLOAT, {.dbl=0.8}, 0, 1, FLAGSR },
729 { "tx", "set trace x position", OOFFSET(tx), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGSR },
730 { "ty", "set trace y position", OOFFSET(ty), AV_OPT_TYPE_FLOAT, {.dbl=0.9}, 0, 1, FLAGSR },
731 { "tw", "set trace width", OOFFSET(twidth), AV_OPT_TYPE_FLOAT, {.dbl=0.8},.1, 1, FLAGSR },
732 { "th", "set trace height", OOFFSET(theight), AV_OPT_TYPE_FLOAT, {.dbl=0.3},.1, 1, FLAGSR },
733 { "c", "set components to trace", OOFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 0, 15, FLAGSR },
734 { "g", "draw trace grid", OOFFSET(grid), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
735 { "st", "draw statistics", OOFFSET(statistics), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
736 { "sc", "draw scope", OOFFSET(scope), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGSR },
740 AVFILTER_DEFINE_CLASS(oscilloscope);
742 static void oscilloscope_uninit(AVFilterContext *ctx)
744 OscilloscopeContext *s = ctx->priv;
746 av_freep(&s->values);
749 static void draw_line(FFDrawContext *draw, int x0, int y0, int x1, int y1,
750 AVFrame *out, FFDrawColor *color)
752 int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
753 int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
754 int err = (dx > dy ? dx : -dy) / 2, e2;
758 if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
759 for (p = 0; p < draw->nb_planes; p++) {
760 if (draw->desc->comp[p].depth == 8) {
761 if (draw->nb_planes == 1) {
762 for (i = 0; i < 4; i++) {
763 out->data[0][y0 * out->linesize[0] + x0 * draw->pixelstep[0] + i] = color->comp[0].u8[i];
766 out->data[p][out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p])] = color->comp[p].u8[0];
769 if (draw->nb_planes == 1) {
770 for (i = 0; i < 4; i++) {
771 AV_WN16(out->data[0] + y0 * out->linesize[0] + 2 * (x0 * draw->pixelstep[0] + i), color->comp[0].u16[i]);
774 AV_WN16(out->data[p] + out->linesize[p] * (y0 >> draw->vsub[p]) + (x0 >> draw->hsub[p]) * 2, color->comp[p].u16[0]);
780 if (x0 == x1 && y0 == y1)
797 static void draw_trace8(OscilloscopeContext *s, AVFrame *frame)
801 for (i = 1; i < s->nb_values; i++) {
802 for (c = 0; c < s->nb_comps; c++) {
803 if ((1 << c) & s->components) {
804 int x = i * s->width / s->nb_values;
805 int px = (i - 1) * s->width / s->nb_values;
806 int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / 256;
807 int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / 256;
809 draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
816 static void draw_trace16(OscilloscopeContext *s, AVFrame *frame)
820 for (i = 1; i < s->nb_values; i++) {
821 for (c = 0; c < s->nb_comps; c++) {
822 if ((1 << c) & s->components) {
823 int x = i * s->width / s->nb_values;
824 int px = (i - 1) * s->width / s->nb_values;
825 int py = s->height - s->values[i-1].p[s->rgba_map[c]] * s->height / s->max;
826 int y = s->height - s->values[i].p[s->rgba_map[c]] * s->height / s->max;
828 draw_line(&s->draw, s->ox + x, s->oy + y, s->ox + px, s->oy + py, frame, s->colors[c]);
834 static void update_oscilloscope(AVFilterContext *ctx)
836 OscilloscopeContext *s = ctx->priv;
837 AVFilterLink *inlink = ctx->inputs[0];
841 ff_draw_color(&s->draw, &s->dark, (uint8_t[]){ 0, 0, 0, s->o * 255} );
842 s->height = s->theight * inlink->h;
843 s->width = s->twidth * inlink->w;
844 size = hypot(inlink->w, inlink->h);
846 tilt = (s->tilt - 0.5) * M_PI;
847 cx = s->xpos * (inlink->w - 1);
848 cy = s->ypos * (inlink->h - 1);
849 s->x1 = cx - size / 2.0 * cos(tilt);
850 s->x2 = cx + size / 2.0 * cos(tilt);
851 s->y1 = cy - size / 2.0 * sin(tilt);
852 s->y2 = cy + size / 2.0 * sin(tilt);
853 s->ox = (inlink->w - s->width) * s->tx;
854 s->oy = (inlink->h - s->height) * s->ty;
857 static int oscilloscope_config_input(AVFilterLink *inlink)
859 OscilloscopeContext *s = inlink->dst->priv;
862 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
863 ff_draw_init(&s->draw, inlink->format, 0);
864 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 255} );
865 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
866 ff_draw_color(&s->draw, &s->green, (uint8_t[]){ 0, 255, 0, 255} );
867 ff_draw_color(&s->draw, &s->blue, (uint8_t[]){ 0, 0, 255, 255} );
868 ff_draw_color(&s->draw, &s->red, (uint8_t[]){ 255, 0, 0, 255} );
869 ff_draw_color(&s->draw, &s->cyan, (uint8_t[]){ 0, 255, 255, 255} );
870 ff_draw_color(&s->draw, &s->magenta, (uint8_t[]){ 255, 0, 255, 255} );
871 ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 128, 128, 128, 255} );
872 s->nb_comps = s->draw.desc->nb_components;
873 s->is_rgb = s->draw.desc->flags & AV_PIX_FMT_FLAG_RGB;
876 s->colors[0] = &s->red;
877 s->colors[1] = &s->green;
878 s->colors[2] = &s->blue;
879 s->colors[3] = &s->white;
880 ff_fill_rgba_map(s->rgba_map, inlink->format);
882 s->colors[0] = &s->white;
883 s->colors[1] = &s->cyan;
884 s->colors[2] = &s->magenta;
885 s->colors[3] = &s->white;
892 if (s->draw.desc->comp[0].depth <= 8) {
893 s->pick_color = pick_color8;
894 s->draw_trace = draw_trace8;
896 s->pick_color = pick_color16;
897 s->draw_trace = draw_trace16;
900 s->max = (1 << s->draw.desc->comp[0].depth);
901 size = hypot(inlink->w, inlink->h);
903 s->values = av_calloc(size, sizeof(*s->values));
905 return AVERROR(ENOMEM);
907 update_oscilloscope(inlink->dst);
912 static void draw_scope(OscilloscopeContext *s, int x0, int y0, int x1, int y1,
913 AVFrame *out, PixelValues *p, int state)
915 int dx = FFABS(x1 - x0), sx = x0 < x1 ? 1 : -1;
916 int dy = FFABS(y1 - y0), sy = y0 < y1 ? 1 : -1;
917 int err = (dx > dy ? dx : -dy) / 2, e2;
920 if (x0 >= 0 && y0 >= 0 && x0 < out->width && y0 < out->height) {
921 FFDrawColor color = { { 0 } };
922 int value[4] = { 0 };
924 s->pick_color(&s->draw, &color, out, x0, y0, value);
925 s->values[s->nb_values].p[0] = value[0];
926 s->values[s->nb_values].p[1] = value[1];
927 s->values[s->nb_values].p[2] = value[2];
928 s->values[s->nb_values].p[3] = value[3];
932 if (s->draw.desc->comp[0].depth == 8) {
933 if (s->draw.nb_planes == 1) {
936 for (i = 0; i < s->draw.pixelstep[0]; i++)
937 out->data[0][out->linesize[0] * y0 + x0 * s->draw.pixelstep[0] + i] = 255 * ((s->nb_values + state) & 1);
939 out->data[0][out->linesize[0] * y0 + x0] = 255 * ((s->nb_values + state) & 1);
942 if (s->draw.nb_planes == 1) {
945 for (i = 0; i < s->draw.pixelstep[0]; i++)
946 AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0 * (s->draw.pixelstep[0] + i), (s->max - 1) * ((s->nb_values + state) & 1));
948 AV_WN16(out->data[0] + out->linesize[0] * y0 + 2 * x0, (s->max - 1) * ((s->nb_values + state) & 1));
954 if (x0 == x1 && y0 == y1)
971 static int oscilloscope_filter_frame(AVFilterLink *inlink, AVFrame *frame)
973 AVFilterContext *ctx = inlink->dst;
974 OscilloscopeContext *s = ctx->priv;
975 AVFilterLink *outlink = ctx->outputs[0];
976 float average[4] = { 0 };
978 int min[4] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX };
982 draw_scope(s, s->x1, s->y1, s->x2, s->y2, frame, s->values, inlink->frame_count_in & 1);
983 ff_blend_rectangle(&s->draw, &s->dark, frame->data, frame->linesize,
984 frame->width, frame->height,
985 s->ox, s->oy, s->width, s->height + 20 * s->statistics);
987 if (s->grid && outlink->h >= 10) {
988 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
989 s->ox, s->oy, s->width - 1, 1);
991 for (i = 1; i < 5; i++) {
992 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
993 s->ox, s->oy + i * (s->height - 1) / 4, s->width, 1);
996 for (i = 0; i < 10; i++) {
997 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
998 s->ox + i * (s->width - 1) / 10, s->oy, 1, s->height);
1001 ff_fill_rectangle(&s->draw, &s->gray, frame->data, frame->linesize,
1002 s->ox + s->width - 1, s->oy, 1, s->height);
1005 s->draw_trace(s, frame);
1007 for (i = 0; i < s->nb_values; i++) {
1008 for (c = 0; c < s->nb_comps; c++) {
1009 if ((1 << c) & s->components) {
1010 max[c] = FFMAX(max[c], s->values[i].p[s->rgba_map[c]]);
1011 min[c] = FFMIN(min[c], s->values[i].p[s->rgba_map[c]]);
1012 average[c] += s->values[i].p[s->rgba_map[c]];
1016 for (c = 0; c < s->nb_comps; c++) {
1017 average[c] /= s->nb_values;
1020 if (s->statistics && s->height > 10 && s->width > 280 * av_popcount(s->components)) {
1021 for (c = 0, i = 0; c < s->nb_comps; c++) {
1022 if ((1 << c) & s->components) {
1023 const char rgba[4] = { 'R', 'G', 'B', 'A' };
1024 const char yuva[4] = { 'Y', 'U', 'V', 'A' };
1027 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]);
1028 draw_text(&s->draw, frame, &s->white, s->ox + 2 + 280 * i++, s->oy + s->height + 4, text, 0);
1033 return ff_filter_frame(outlink, frame);
1036 static int oscilloscope_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
1037 char *res, int res_len, int flags)
1041 ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
1045 update_oscilloscope(ctx);
1050 static const AVFilterPad oscilloscope_inputs[] = {
1053 .type = AVMEDIA_TYPE_VIDEO,
1054 .filter_frame = oscilloscope_filter_frame,
1055 .config_props = oscilloscope_config_input,
1056 .needs_writable = 1,
1061 static const AVFilterPad oscilloscope_outputs[] = {
1064 .type = AVMEDIA_TYPE_VIDEO,
1069 AVFilter ff_vf_oscilloscope = {
1070 .name = "oscilloscope",
1071 .description = NULL_IF_CONFIG_SMALL("2D Video Oscilloscope."),
1072 .priv_size = sizeof(OscilloscopeContext),
1073 .priv_class = &oscilloscope_class,
1074 .query_formats = query_formats,
1075 .uninit = oscilloscope_uninit,
1076 .inputs = oscilloscope_inputs,
1077 .outputs = oscilloscope_outputs,
1078 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
1079 .process_command = oscilloscope_process_command,