2 * Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
3 * Copyright (c) 2011 Stefano Sabatini
4 * Copyright (c) 2012 Paul B Mahol
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27 * testsrc is based on the test pattern generator demuxer by Nicolas George:
28 * http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html
30 * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
31 * Michael Niedermayer.
33 * smptebars is by Paul B Mahol.
38 #include "libavutil/common.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/intreadwrite.h"
42 #include "libavutil/parseutils.h"
44 #include "drawutils.h"
52 unsigned int nb_frame;
53 AVRational time_base, frame_rate;
55 char *frame_rate_str; ///< video frame rate
56 char *duration_str; ///< total duration of the generated video
57 int64_t duration; ///< duration expressed in microseconds
58 AVRational sar; ///< sample aspect ratio
60 int draw_once; ///< draw only the first frame, always put out the same picture
61 AVFilterBufferRef *picref; ///< cached reference containing the painted picture
63 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
65 /* only used by color */
69 uint8_t color_rgba[4];
71 /* only used by rgbtest */
75 #define OFFSET(x) offsetof(TestSourceContext, x)
76 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
78 static const AVOption options[] = {
79 { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },
80 { "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },
81 { "rate", "set video rate", OFFSET(frame_rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
82 { "r", "set video rate", OFFSET(frame_rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, FLAGS },
83 { "duration", "set video duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
84 { "d", "set video duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
85 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX, FLAGS },
87 /* only used by color */
88 { "color", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS },
89 { "c", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, FLAGS },
91 /* only used by testsrc */
92 { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGS },
93 { "n", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGS },
97 static av_cold int init(AVFilterContext *ctx, const char *args)
99 TestSourceContext *test = ctx->priv;
102 av_opt_set_defaults(test);
104 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0)
107 if ((ret = av_parse_video_rate(&test->frame_rate, test->frame_rate_str)) < 0) {
108 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->frame_rate_str);
113 if (test->duration_str &&
114 (ret = av_parse_time(&test->duration, test->duration_str, 1)) < 0) {
115 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration_str);
119 if (test->nb_decimals && strcmp(ctx->filter->name, "testsrc")) {
120 av_log(ctx, AV_LOG_WARNING,
121 "Option 'decimals' is ignored with source '%s'\n",
125 if (test->color_str) {
126 if (!strcmp(ctx->filter->name, "color")) {
127 ret = av_parse_color(test->color_rgba, test->color_str, -1, ctx);
131 av_log(ctx, AV_LOG_WARNING,
132 "Option 'color' is ignored with source '%s'\n",
137 test->time_base = av_inv_q(test->frame_rate);
141 av_log(ctx, AV_LOG_VERBOSE, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
142 test->w, test->h, test->frame_rate.num, test->frame_rate.den,
143 test->duration < 0 ? -1 : (double)test->duration/1000000,
144 test->sar.num, test->sar.den);
148 static av_cold void uninit(AVFilterContext *ctx)
150 TestSourceContext *test = ctx->priv;
153 avfilter_unref_bufferp(&test->picref);
156 static int config_props(AVFilterLink *outlink)
158 TestSourceContext *test = outlink->src->priv;
160 outlink->w = test->w;
161 outlink->h = test->h;
162 outlink->sample_aspect_ratio = test->sar;
163 outlink->frame_rate = test->frame_rate;
164 outlink->time_base = test->time_base;
169 static int request_frame(AVFilterLink *outlink)
171 TestSourceContext *test = outlink->src->priv;
172 AVFilterBufferRef *outpicref;
174 if (test->duration >= 0 &&
175 av_rescale_q(test->pts, test->time_base, AV_TIME_BASE_Q) >= test->duration)
178 if (test->draw_once) {
181 ff_get_video_buffer(outlink, AV_PERM_WRITE|AV_PERM_PRESERVE|AV_PERM_REUSE,
184 return AVERROR(ENOMEM);
185 test->fill_picture_fn(outlink->src, test->picref);
187 outpicref = avfilter_ref_buffer(test->picref, ~AV_PERM_WRITE);
189 outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE, test->w, test->h);
192 return AVERROR(ENOMEM);
193 outpicref->pts = test->pts;
195 outpicref->video->key_frame = 1;
196 outpicref->video->interlaced = 0;
197 outpicref->video->pict_type = AV_PICTURE_TYPE_I;
198 outpicref->video->sample_aspect_ratio = test->sar;
199 if (!test->draw_once)
200 test->fill_picture_fn(outlink->src, outpicref);
205 return ff_filter_frame(outlink, outpicref);
208 #if CONFIG_COLOR_FILTER
210 #define color_options options
211 AVFILTER_DEFINE_CLASS(color);
213 static void color_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
215 TestSourceContext *test = ctx->priv;
216 ff_fill_rectangle(&test->draw, &test->color,
217 picref->data, picref->linesize,
218 0, 0, test->w, test->h);
221 static av_cold int color_init(AVFilterContext *ctx, const char *args)
223 TestSourceContext *test = ctx->priv;
224 test->class = &color_class;
225 test->fill_picture_fn = color_fill_picture;
227 av_opt_set(test, "color", "black", 0);
228 return init(ctx, args);
231 static int color_query_formats(AVFilterContext *ctx)
233 ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
237 static int color_config_props(AVFilterLink *inlink)
239 AVFilterContext *ctx = inlink->src;
240 TestSourceContext *test = ctx->priv;
243 ff_draw_init(&test->draw, inlink->format, 0);
244 ff_draw_color(&test->draw, &test->color, test->color_rgba);
246 test->w = ff_draw_round_to_sub(&test->draw, 0, -1, test->w);
247 test->h = ff_draw_round_to_sub(&test->draw, 1, -1, test->h);
248 if (av_image_check_size(test->w, test->h, 0, ctx) < 0)
249 return AVERROR(EINVAL);
251 if ((ret = config_props(inlink)) < 0)
254 av_log(ctx, AV_LOG_VERBOSE, "color:0x%02x%02x%02x%02x\n",
255 test->color_rgba[0], test->color_rgba[1], test->color_rgba[2], test->color_rgba[3]);
259 static const AVFilterPad color_outputs[] = {
262 .type = AVMEDIA_TYPE_VIDEO,
263 .request_frame = request_frame,
264 .config_props = color_config_props,
269 AVFilter avfilter_vsrc_color = {
271 .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
273 .priv_size = sizeof(TestSourceContext),
277 .query_formats = color_query_formats,
279 .outputs = color_outputs,
280 .priv_class = &color_class,
283 #endif /* CONFIG_COLOR_FILTER */
285 #if CONFIG_NULLSRC_FILTER
287 #define nullsrc_options options
288 AVFILTER_DEFINE_CLASS(nullsrc);
290 static void nullsrc_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { }
292 static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args)
294 TestSourceContext *test = ctx->priv;
296 test->class = &nullsrc_class;
297 test->fill_picture_fn = nullsrc_fill_picture;
298 return init(ctx, args);
301 static const AVFilterPad nullsrc_outputs[] = {
304 .type = AVMEDIA_TYPE_VIDEO,
305 .request_frame = request_frame,
306 .config_props = config_props,
311 AVFilter avfilter_vsrc_nullsrc = {
313 .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
314 .init = nullsrc_init,
316 .priv_size = sizeof(TestSourceContext),
318 .outputs = nullsrc_outputs,
319 .priv_class = &nullsrc_class,
322 #endif /* CONFIG_NULLSRC_FILTER */
324 #if CONFIG_TESTSRC_FILTER
326 #define testsrc_options options
327 AVFILTER_DEFINE_CLASS(testsrc);
330 * Fill a rectangle with value val.
332 * @param val the RGB value to set
333 * @param dst pointer to the destination buffer to fill
334 * @param dst_linesize linesize of destination
335 * @param segment_width width of the segment
336 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
337 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
338 * @param w width of the rectangle to draw, expressed as a number of segment_width units
339 * @param h height of the rectangle to draw, expressed as a number of segment_width units
341 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
342 unsigned x, unsigned y, unsigned w, unsigned h)
347 dst += segment_width * (step * x + y * dst_linesize);
348 w *= segment_width * step;
350 for (i = 0; i < h; i++) {
356 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
357 unsigned segment_width)
362 #define LEFT_TOP_VBAR 8
363 #define LEFT_BOT_VBAR 16
364 #define RIGHT_TOP_VBAR 32
365 #define RIGHT_BOT_VBAR 64
369 { 1, 0, 5, 1 }, /* TOP_HBAR */
370 { 1, 6, 5, 1 }, /* MID_HBAR */
371 { 1, 12, 5, 1 }, /* BOT_HBAR */
372 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
373 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
374 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
375 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
377 static const unsigned char masks[10] = {
378 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
379 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
380 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
381 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
382 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
383 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
384 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
385 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
386 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
387 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
389 unsigned mask = masks[digit];
392 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
393 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
395 draw_rectangle(255, dst, dst_linesize, segment_width,
396 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
399 #define GRADIENT_SIZE (6 * 256)
401 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
403 TestSourceContext *test = ctx->priv;
406 int color, color_rest;
410 int dquad_x, dquad_y;
411 int grad, dgrad, rgrad, drgrad;
415 uint8_t *data = picref->data[0];
416 int width = picref->video->w;
417 int height = picref->video->h;
419 /* draw colored bars and circle */
420 radius = (width + height) / 4;
421 quad0 = width * width / 4 + height * height / 4 - radius * radius;
422 dquad_y = 1 - height;
424 for (y = 0; y < height; y++) {
430 for (x = 0; x < width; x++) {
436 *(p++) = icolor & 1 ? 255 : 0;
437 *(p++) = icolor & 2 ? 255 : 0;
438 *(p++) = icolor & 4 ? 255 : 0;
440 if (color_rest >= width) {
447 p0 += picref->linesize[0];
450 /* draw sliding color line */
451 p0 = p = data + picref->linesize[0] * height * 3/4;
452 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
455 dgrad = GRADIENT_SIZE / width;
456 drgrad = GRADIENT_SIZE % width;
457 for (x = 0; x < width; x++) {
459 grad < 256 || grad >= 5 * 256 ? 255 :
460 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
461 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
463 grad >= 4 * 256 ? 0 :
464 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
465 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
468 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
469 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
472 if (rgrad >= GRADIENT_SIZE) {
474 rgrad -= GRADIENT_SIZE;
476 if (grad >= GRADIENT_SIZE)
477 grad -= GRADIENT_SIZE;
480 for (y = height / 8; y > 0; y--) {
481 memcpy(p+picref->linesize[0], p, 3 * width);
482 p += picref->linesize[0];
486 seg_size = width / 80;
487 if (seg_size >= 1 && height >= 13 * seg_size) {
488 double time = av_q2d(test->time_base) * test->nb_frame *
489 pow(10, test->nb_decimals);
493 x = width - (width - seg_size * 64) / 2;
494 y = (height - seg_size * 13) / 2;
495 p = data + (x*3 + y * picref->linesize[0]);
496 for (i = 0; i < 8; i++) {
497 p -= 3 * 8 * seg_size;
498 draw_digit(second % 10, p, picref->linesize[0], seg_size);
506 static av_cold int test_init(AVFilterContext *ctx, const char *args)
508 TestSourceContext *test = ctx->priv;
510 test->class = &testsrc_class;
511 test->fill_picture_fn = test_fill_picture;
512 return init(ctx, args);
515 static int test_query_formats(AVFilterContext *ctx)
517 static const enum AVPixelFormat pix_fmts[] = {
518 AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
520 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
524 static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
527 .type = AVMEDIA_TYPE_VIDEO,
528 .request_frame = request_frame,
529 .config_props = config_props,
534 AVFilter avfilter_vsrc_testsrc = {
536 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
537 .priv_size = sizeof(TestSourceContext),
541 .query_formats = test_query_formats,
544 .outputs = avfilter_vsrc_testsrc_outputs,
545 .priv_class = &testsrc_class,
548 #endif /* CONFIG_TESTSRC_FILTER */
550 #if CONFIG_RGBTESTSRC_FILTER
552 #define rgbtestsrc_options options
553 AVFILTER_DEFINE_CLASS(rgbtestsrc);
560 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
561 int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
568 case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
569 case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
570 case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
571 case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
572 case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
573 case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
574 case AV_PIX_FMT_RGB24:
575 case AV_PIX_FMT_BGR24:
576 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
577 p = dst + 3*x + y*dst_linesize;
580 case AV_PIX_FMT_RGBA:
581 case AV_PIX_FMT_BGRA:
582 case AV_PIX_FMT_ARGB:
583 case AV_PIX_FMT_ABGR:
584 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
585 p = dst + 4*x + y*dst_linesize;
591 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
593 TestSourceContext *test = ctx->priv;
594 int x, y, w = picref->video->w, h = picref->video->h;
596 for (y = 0; y < h; y++) {
597 for (x = 0; x < picref->video->w; x++) {
599 int r = 0, g = 0, b = 0;
602 else if (3*y < 2*h) g = c;
605 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
606 ctx->outputs[0]->format, test->rgba_map);
611 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args)
613 TestSourceContext *test = ctx->priv;
616 test->class = &rgbtestsrc_class;
617 test->fill_picture_fn = rgbtest_fill_picture;
618 return init(ctx, args);
621 static int rgbtest_query_formats(AVFilterContext *ctx)
623 static const enum AVPixelFormat pix_fmts[] = {
624 AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
625 AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
626 AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
627 AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
628 AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
631 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
635 static int rgbtest_config_props(AVFilterLink *outlink)
637 TestSourceContext *test = outlink->src->priv;
639 ff_fill_rgba_map(test->rgba_map, outlink->format);
640 return config_props(outlink);
643 static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
646 .type = AVMEDIA_TYPE_VIDEO,
647 .request_frame = request_frame,
648 .config_props = rgbtest_config_props,
653 AVFilter avfilter_vsrc_rgbtestsrc = {
654 .name = "rgbtestsrc",
655 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
656 .priv_size = sizeof(TestSourceContext),
657 .init = rgbtest_init,
660 .query_formats = rgbtest_query_formats,
664 .outputs = avfilter_vsrc_rgbtestsrc_outputs,
665 .priv_class = &rgbtestsrc_class,
668 #endif /* CONFIG_RGBTESTSRC_FILTER */
670 #if CONFIG_SMPTEBARS_FILTER
672 #define smptebars_options options
673 AVFILTER_DEFINE_CLASS(smptebars);
675 static const uint8_t rainbow[7][4] = {
676 { 191, 191, 191, 255 }, /* gray */
677 { 191, 191, 0, 255 }, /* yellow */
678 { 0, 191, 191, 255 }, /* cyan */
679 { 0, 191, 0, 255 }, /* green */
680 { 191, 0, 191, 255 }, /* magenta */
681 { 191, 0, 0, 255 }, /* red */
682 { 0, 0, 191, 255 }, /* blue */
685 static const uint8_t wobnair[7][4] = {
686 { 0, 0, 191, 255 }, /* blue */
687 { 19, 19, 19, 255 }, /* 7.5% intensity black */
688 { 191, 0, 191, 255 }, /* magenta */
689 { 19, 19, 19, 255 }, /* 7.5% intensity black */
690 { 0, 191, 191, 255 }, /* cyan */
691 { 19, 19, 19, 255 }, /* 7.5% intensity black */
692 { 191, 191, 191, 255 }, /* gray */
695 static const uint8_t white[4] = { 255, 255, 255, 255 };
696 static const uint8_t black[4] = { 19, 19, 19, 255 }; /* 7.5% intensity black */
699 static const uint8_t neg4ire[4] = { 9, 9, 9, 255 }; /* 3.5% intensity black */
700 static const uint8_t pos4ire[4] = { 29, 29, 29, 255 }; /* 11.5% intensity black */
703 static const uint8_t i_pixel[4] = { 0, 68, 130, 255 };
704 static const uint8_t q_pixel[4] = { 67, 0, 130, 255 };
706 static void smptebars_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
708 TestSourceContext *test = ctx->priv;
710 int r_w, r_h, w_h, p_w, p_h, i, x = 0;
712 r_w = (test->w + 6) / 7;
713 r_h = test->h * 2 / 3;
714 w_h = test->h * 3 / 4 - r_h;
716 p_h = test->h - w_h - r_h;
718 #define DRAW_COLOR(rgba, x, y, w, h) \
719 ff_draw_color(&test->draw, &color, rgba); \
720 ff_fill_rectangle(&test->draw, &color, \
721 picref->data, picref->linesize, x, y, w, h) \
723 for (i = 0; i < 7; i++) {
724 DRAW_COLOR(rainbow[i], x, 0, FFMIN(r_w, test->w - x), r_h);
725 DRAW_COLOR(wobnair[i], x, r_h, FFMIN(r_w, test->w - x), w_h);
729 DRAW_COLOR(i_pixel, x, r_h + w_h, p_w, p_h);
731 DRAW_COLOR(white, x, r_h + w_h, p_w, p_h);
733 DRAW_COLOR(q_pixel, x, r_h + w_h, p_w, p_h);
735 DRAW_COLOR(black, x, r_h + w_h, 5 * r_w - x, p_h);
737 DRAW_COLOR(neg4ire, x, r_h + w_h, r_w / 3, p_h);
739 DRAW_COLOR(black, x, r_h + w_h, r_w / 3, p_h);
741 DRAW_COLOR(pos4ire, x, r_h + w_h, r_w / 3, p_h);
743 DRAW_COLOR(black, x, r_h + w_h, test->w - x, p_h);
746 static av_cold int smptebars_init(AVFilterContext *ctx, const char *args)
748 TestSourceContext *test = ctx->priv;
750 test->class = &smptebars_class;
751 test->fill_picture_fn = smptebars_fill_picture;
753 return init(ctx, args);
756 static int smptebars_query_formats(AVFilterContext *ctx)
758 ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
762 static int smptebars_config_props(AVFilterLink *outlink)
764 AVFilterContext *ctx = outlink->src;
765 TestSourceContext *test = ctx->priv;
767 ff_draw_init(&test->draw, outlink->format, 0);
769 return config_props(outlink);
772 static const AVFilterPad smptebars_outputs[] = {
775 .type = AVMEDIA_TYPE_VIDEO,
776 .request_frame = request_frame,
777 .config_props = smptebars_config_props,
782 AVFilter avfilter_vsrc_smptebars = {
784 .description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
785 .priv_size = sizeof(TestSourceContext),
786 .init = smptebars_init,
789 .query_formats = smptebars_query_formats,
791 .outputs = smptebars_outputs,
792 .priv_class = &smptebars_class,
795 #endif /* CONFIG_SMPTEBARS_FILTER */