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 {
49 int (*filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
52 #define OFFSET(x) offsetof(DatascopeContext, x)
53 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
55 static const AVOption datascope_options[] = {
56 { "size", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
57 { "s", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
58 { "x", "set x offset", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
59 { "y", "set y offset", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
60 { "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mode" },
61 { "mono", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
62 { "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
63 { "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode" },
64 { "axis", "draw column/row numbers", OFFSET(axis), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
68 AVFILTER_DEFINE_CLASS(datascope);
70 static int query_formats(AVFilterContext *ctx)
72 return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
75 static void draw_text(DatascopeContext *s, AVFrame *frame, FFDrawColor *color,
76 int x0, int y0, const uint8_t *text, int vertical)
80 for (; *text; text++) {
86 ff_blend_mask(&s->draw, color, frame->data, frame->linesize,
87 frame->width, frame->height,
88 avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
98 static void pick_color(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
102 color->rgba[3] = 255;
103 for (p = 0; p < draw->nb_planes; p++) {
104 if (draw->desc->comp[p].depth == 8) {
105 if (draw->nb_planes == 1) {
106 for (i = 0; i < 4; i++) {
107 value[i] = in->data[0][y * in->linesize[0] + x * draw->pixelstep[0] + i];
108 color->comp[0].u8[i] = value[i];
111 value[p] = in->data[p][(y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p])];
112 color->comp[p].u8[0] = value[p];
115 if (draw->nb_planes == 1) {
116 for (i = 0; i < 4; i++) {
117 value[i] = AV_RL16(in->data[0] + y * in->linesize[0] + x * draw->pixelstep[0] + i * 2);
118 color->comp[0].u16[i] = value[i];
121 value[p] = AV_RL16(in->data[p] + (y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p]) * 2);
122 color->comp[p].u16[0] = value[p];
128 static void reverse_color(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
132 reverse->rgba[3] = 255;
133 for (p = 0; p < draw->nb_planes; p++) {
134 if (draw->desc->comp[p].depth == 8) {
135 reverse->comp[p].u8[0] = color->comp[p].u8[0] > 127 ? 0 : 255;
136 reverse->comp[p].u8[1] = color->comp[p].u8[1] > 127 ? 0 : 255;
137 reverse->comp[p].u8[2] = color->comp[p].u8[2] > 127 ? 0 : 255;
138 reverse->comp[p].u8[3] = color->comp[p].u8[3] > 127 ? 0 : 255;
140 const unsigned max = (1 << draw->desc->comp[p].depth) - 1;
141 const unsigned mid = (max + 1) / 2;
143 reverse->comp[p].u16[0] = color->comp[p].u16[0] > mid ? 0 : max;
144 reverse->comp[p].u16[1] = color->comp[p].u16[1] > mid ? 0 : max;
145 reverse->comp[p].u16[2] = color->comp[p].u16[2] > mid ? 0 : max;
146 reverse->comp[p].u16[3] = color->comp[p].u16[3] > mid ? 0 : max;
151 typedef struct ThreadData {
156 static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
158 DatascopeContext *s = ctx->priv;
159 AVFilterLink *outlink = ctx->outputs[0];
160 AVFilterLink *inlink = ctx->inputs[0];
161 ThreadData *td = arg;
162 AVFrame *in = td->in;
163 AVFrame *out = td->out;
164 const int xoff = td->xoff;
165 const int yoff = td->yoff;
166 const int P = FFMAX(s->nb_planes, s->nb_comps);
167 const int C = s->chars;
168 const int W = (outlink->w - xoff) / (C * 10);
169 const int H = (outlink->h - yoff) / (P * 12);
170 const char *format[2] = {"%02X\n", "%04X\n"};
171 const int slice_start = (W * jobnr) / nb_jobs;
172 const int slice_end = (W * (jobnr+1)) / nb_jobs;
175 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
176 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
177 FFDrawColor color = { { 0 } };
178 FFDrawColor reverse = { { 0 } };
179 int value[4] = { 0 };
181 pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
182 reverse_color(&s->draw, &color, &reverse);
183 ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
184 xoff + x * C * 10, yoff + y * P * 12, C * 10, P * 12);
186 for (p = 0; p < P; p++) {
189 snprintf(text, sizeof(text), format[C>>2], value[p]);
190 draw_text(s, out, &reverse, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
198 static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
200 DatascopeContext *s = ctx->priv;
201 AVFilterLink *outlink = ctx->outputs[0];
202 AVFilterLink *inlink = ctx->inputs[0];
203 ThreadData *td = arg;
204 AVFrame *in = td->in;
205 AVFrame *out = td->out;
206 const int xoff = td->xoff;
207 const int yoff = td->yoff;
208 const int P = FFMAX(s->nb_planes, s->nb_comps);
209 const int C = s->chars;
210 const int W = (outlink->w - xoff) / (C * 10);
211 const int H = (outlink->h - yoff) / (P * 12);
212 const char *format[2] = {"%02X\n", "%04X\n"};
213 const int slice_start = (W * jobnr) / nb_jobs;
214 const int slice_end = (W * (jobnr+1)) / nb_jobs;
217 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
218 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
219 FFDrawColor color = { { 0 } };
220 int value[4] = { 0 };
222 pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
224 for (p = 0; p < P; p++) {
227 snprintf(text, sizeof(text), format[C>>2], value[p]);
228 draw_text(s, out, &color, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
236 static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
238 DatascopeContext *s = ctx->priv;
239 AVFilterLink *outlink = ctx->outputs[0];
240 AVFilterLink *inlink = ctx->inputs[0];
241 ThreadData *td = arg;
242 AVFrame *in = td->in;
243 AVFrame *out = td->out;
244 const int xoff = td->xoff;
245 const int yoff = td->yoff;
246 const int P = FFMAX(s->nb_planes, s->nb_comps);
247 const int C = s->chars;
248 const int W = (outlink->w - xoff) / (C * 10);
249 const int H = (outlink->h - yoff) / (P * 12);
250 const char *format[2] = {"%02X\n", "%04X\n"};
251 const int slice_start = (W * jobnr) / nb_jobs;
252 const int slice_end = (W * (jobnr+1)) / nb_jobs;
255 for (y = 0; y < H && (y + s->y < inlink->h); y++) {
256 for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
257 FFDrawColor color = { { 0 } };
258 int value[4] = { 0 };
260 pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
261 for (p = 0; p < P; p++) {
264 snprintf(text, sizeof(text), format[C>>2], value[p]);
265 draw_text(s, out, &s->white, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
273 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
275 AVFilterContext *ctx = inlink->dst;
276 DatascopeContext *s = ctx->priv;
277 AVFilterLink *outlink = ctx->outputs[0];
278 ThreadData td = { 0 };
283 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
286 return AVERROR(ENOMEM);
290 ff_fill_rectangle(&s->draw, &s->black, out->data, out->linesize,
291 0, 0, outlink->w, outlink->h);
294 const int P = FFMAX(s->nb_planes, s->nb_comps);
295 const int C = s->chars;
296 int Y = outlink->h / (P * 12);
297 int X = outlink->w / (C * 10);
298 char text[256] = { 0 };
301 snprintf(text, sizeof(text), "%d", s->y + Y);
302 ymaxlen = strlen(text);
304 snprintf(text, sizeof(text), "%d", s->x + X);
305 xmaxlen = strlen(text);
308 Y = (outlink->h - xmaxlen) / (P * 12);
309 X = (outlink->w - ymaxlen) / (C * 10);
311 for (y = 0; y < Y; y++) {
312 snprintf(text, sizeof(text), "%d", s->y + y);
314 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
315 0, xmaxlen + y * P * 12 + (P + 1) * P - 2, ymaxlen, 10);
317 draw_text(s, out, &s->yellow, 2, xmaxlen + y * P * 12 + (P + 1) * P, text, 0);
320 for (x = 0; x < X; x++) {
321 snprintf(text, sizeof(text), "%d", s->x + x);
323 ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
324 ymaxlen + x * C * 10 + 2 * C - 2, 0, 10, xmaxlen);
326 draw_text(s, out, &s->yellow, ymaxlen + x * C * 10 + 2 * C, 2, text, 1);
330 td.in = in; td.out = out, td.yoff = xmaxlen, td.xoff = ymaxlen;
331 ctx->internal->execute(ctx, s->filter, &td, NULL, FFMIN(ctx->graph->nb_threads, FFMAX(outlink->w / 20, 1)));
334 return ff_filter_frame(outlink, out);
337 static int config_input(AVFilterLink *inlink)
339 DatascopeContext *s = inlink->dst->priv;
341 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
342 ff_draw_init(&s->draw, inlink->format, 0);
343 ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
344 ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 0} );
345 ff_draw_color(&s->draw, &s->yellow, (uint8_t[]){ 255, 255, 0, 255} );
346 ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 77, 77, 77, 255} );
347 s->chars = (s->draw.desc->comp[0].depth + 7) / 8 * 2;
348 s->nb_comps = s->draw.desc->nb_components;
351 case 0: s->filter = filter_mono; break;
352 case 1: s->filter = filter_color; break;
353 case 2: s->filter = filter_color2; break;
359 static int config_output(AVFilterLink *outlink)
361 DatascopeContext *s = outlink->src->priv;
365 outlink->sample_aspect_ratio = (AVRational){1,1};
370 static const AVFilterPad inputs[] = {
373 .type = AVMEDIA_TYPE_VIDEO,
374 .filter_frame = filter_frame,
375 .config_props = config_input,
380 static const AVFilterPad outputs[] = {
383 .type = AVMEDIA_TYPE_VIDEO,
384 .config_props = config_output,
389 AVFilter ff_vf_datascope = {
391 .description = NULL_IF_CONFIG_SMALL("Video data analysis."),
392 .priv_size = sizeof(DatascopeContext),
393 .priv_class = &datascope_class,
394 .query_formats = query_formats,
397 .flags = AVFILTER_FLAG_SLICE_THREADS,