2 * Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
3 * Copyright (c) 2011 Stefano Sabatini
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 * testsrc is based on the test pattern generator demuxer by Nicolas George:
27 * http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html
29 * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
30 * Michael Niedermayer.
35 #include "libavutil/opt.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/parseutils.h"
43 unsigned int nb_frame;
46 char *rate; ///< video frame rate
47 char *duration; ///< total duration of the generated video
48 AVRational sar; ///< sample aspect ratio
51 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
53 /* only used by rgbtest */
57 #define OFFSET(x) offsetof(TestSourceContext, x)
59 static const AVOption testsrc_options[]= {
60 { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0 },
61 { "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0 },
62 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
63 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
64 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
65 { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
66 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX },
67 { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.dbl=0}, INT_MIN, INT_MAX },
68 { "n", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.dbl=0}, INT_MIN, INT_MAX },
72 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
74 TestSourceContext *test = ctx->priv;
75 AVRational frame_rate_q;
76 int64_t duration = -1;
79 av_opt_set_defaults(test);
81 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
82 av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
86 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
87 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
88 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
91 av_freep(&test->rate);
93 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
94 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
97 av_freep(&test->duration);
99 if (test->nb_decimals && strcmp(ctx->filter->name, "testsrc")) {
100 av_log(ctx, AV_LOG_WARNING,
101 "Option 'decimals' is ignored with source '%s'\n",
105 test->time_base.num = frame_rate_q.den;
106 test->time_base.den = frame_rate_q.num;
107 test->max_pts = duration >= 0 ?
108 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
112 av_log(ctx, AV_LOG_INFO, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
113 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
114 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
115 test->sar.num, test->sar.den);
119 static int config_props(AVFilterLink *outlink)
121 TestSourceContext *test = outlink->src->priv;
123 outlink->w = test->w;
124 outlink->h = test->h;
125 outlink->sample_aspect_ratio = test->sar;
126 outlink->time_base = test->time_base;
131 static int request_frame(AVFilterLink *outlink)
133 TestSourceContext *test = outlink->src->priv;
134 AVFilterBufferRef *picref;
136 if (test->max_pts >= 0 && test->pts >= test->max_pts)
138 picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE,
140 picref->pts = test->pts++;
142 picref->video->key_frame = 1;
143 picref->video->interlaced = 0;
144 picref->video->pict_type = AV_PICTURE_TYPE_I;
145 picref->video->sample_aspect_ratio = test->sar;
146 test->fill_picture_fn(outlink->src, picref);
149 avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
150 avfilter_draw_slice(outlink, 0, picref->video->h, 1);
151 avfilter_end_frame(outlink);
152 avfilter_unref_buffer(picref);
157 #if CONFIG_NULLSRC_FILTER
159 static const char *nullsrc_get_name(void *ctx)
164 static const AVClass nullsrc_class = {
165 .class_name = "NullSourceContext",
166 .item_name = nullsrc_get_name,
167 .option = testsrc_options,
170 static void nullsrc_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { }
172 static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args, void *opaque)
174 TestSourceContext *test = ctx->priv;
176 test->class = &nullsrc_class;
177 test->fill_picture_fn = nullsrc_fill_picture;
178 return init(ctx, args, opaque);
181 AVFilter avfilter_vsrc_nullsrc = {
183 .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
184 .init = nullsrc_init,
185 .priv_size = sizeof(TestSourceContext),
187 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
188 .outputs = (const AVFilterPad[]) {{ .name = "default",
189 .type = AVMEDIA_TYPE_VIDEO,
190 .request_frame = request_frame,
191 .config_props = config_props, },
195 #endif /* CONFIG_NULLSRC_FILTER */
197 #if CONFIG_TESTSRC_FILTER
199 static const char *testsrc_get_name(void *ctx)
204 static const AVClass testsrc_class = {
205 .class_name = "TestSourceContext",
206 .item_name = testsrc_get_name,
207 .option = testsrc_options,
211 * Fill a rectangle with value val.
213 * @param val the RGB value to set
214 * @param dst pointer to the destination buffer to fill
215 * @param dst_linesize linesize of destination
216 * @param segment_width width of the segment
217 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
218 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
219 * @param w width of the rectangle to draw, expressed as a number of segment_width units
220 * @param h height of the rectangle to draw, expressed as a number of segment_width units
222 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
223 unsigned x, unsigned y, unsigned w, unsigned h)
228 dst += segment_width * (step * x + y * dst_linesize);
229 w *= segment_width * step;
231 for (i = 0; i < h; i++) {
237 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
238 unsigned segment_width)
243 #define LEFT_TOP_VBAR 8
244 #define LEFT_BOT_VBAR 16
245 #define RIGHT_TOP_VBAR 32
246 #define RIGHT_BOT_VBAR 64
250 { 1, 0, 5, 1 }, /* TOP_HBAR */
251 { 1, 6, 5, 1 }, /* MID_HBAR */
252 { 1, 12, 5, 1 }, /* BOT_HBAR */
253 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
254 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
255 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
256 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
258 static const unsigned char masks[10] = {
259 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
260 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
261 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
262 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
263 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
264 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
265 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
266 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
267 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
268 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
270 unsigned mask = masks[digit];
273 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
274 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
276 draw_rectangle(255, dst, dst_linesize, segment_width,
277 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
280 #define GRADIENT_SIZE (6 * 256)
282 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
284 TestSourceContext *test = ctx->priv;
287 int color, color_rest;
291 int dquad_x, dquad_y;
292 int grad, dgrad, rgrad, drgrad;
296 uint8_t *data = picref->data[0];
297 int width = picref->video->w;
298 int height = picref->video->h;
300 /* draw colored bars and circle */
301 radius = (width + height) / 4;
302 quad0 = width * width / 4 + height * height / 4 - radius * radius;
303 dquad_y = 1 - height;
305 for (y = 0; y < height; y++) {
311 for (x = 0; x < width; x++) {
317 *(p++) = icolor & 1 ? 255 : 0;
318 *(p++) = icolor & 2 ? 255 : 0;
319 *(p++) = icolor & 4 ? 255 : 0;
321 if (color_rest >= width) {
328 p0 += picref->linesize[0];
331 /* draw sliding color line */
332 p0 = p = data + picref->linesize[0] * height * 3/4;
333 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
336 dgrad = GRADIENT_SIZE / width;
337 drgrad = GRADIENT_SIZE % width;
338 for (x = 0; x < width; x++) {
340 grad < 256 || grad >= 5 * 256 ? 255 :
341 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
342 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
344 grad >= 4 * 256 ? 0 :
345 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
346 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
349 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
350 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
353 if (rgrad >= GRADIENT_SIZE) {
355 rgrad -= GRADIENT_SIZE;
357 if (grad >= GRADIENT_SIZE)
358 grad -= GRADIENT_SIZE;
361 for (y = height / 8; y > 0; y--) {
362 memcpy(p+picref->linesize[0], p, 3 * width);
363 p += picref->linesize[0];
367 seg_size = width / 80;
368 if (seg_size >= 1 && height >= 13 * seg_size) {
369 double time = av_q2d(test->time_base) * test->nb_frame *
370 pow(10, test->nb_decimals);
374 x = width - (width - seg_size * 64) / 2;
375 y = (height - seg_size * 13) / 2;
376 p = data + (x*3 + y * picref->linesize[0]);
377 for (i = 0; i < 8; i++) {
378 p -= 3 * 8 * seg_size;
379 draw_digit(second % 10, p, picref->linesize[0], seg_size);
387 static av_cold int test_init(AVFilterContext *ctx, const char *args, void *opaque)
389 TestSourceContext *test = ctx->priv;
391 test->class = &testsrc_class;
392 test->fill_picture_fn = test_fill_picture;
393 return init(ctx, args, opaque);
396 static int test_query_formats(AVFilterContext *ctx)
398 static const enum PixelFormat pix_fmts[] = {
399 PIX_FMT_RGB24, PIX_FMT_NONE
401 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
405 AVFilter avfilter_vsrc_testsrc = {
407 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
408 .priv_size = sizeof(TestSourceContext),
411 .query_formats = test_query_formats,
413 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
415 .outputs = (const AVFilterPad[]) {{ .name = "default",
416 .type = AVMEDIA_TYPE_VIDEO,
417 .request_frame = request_frame,
418 .config_props = config_props, },
422 #endif /* CONFIG_TESTSRC_FILTER */
424 #if CONFIG_RGBTESTSRC_FILTER
426 static const char *rgbtestsrc_get_name(void *ctx)
431 static const AVClass rgbtestsrc_class = {
432 .class_name = "RGBTestSourceContext",
433 .item_name = rgbtestsrc_get_name,
434 .option = testsrc_options,
442 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
443 int x, int y, int r, int g, int b, enum PixelFormat fmt,
450 case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
451 case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
452 case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
453 case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
454 case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
455 case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
458 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
459 p = dst + 3*x + y*dst_linesize;
466 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
467 p = dst + 4*x + y*dst_linesize;
473 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
475 TestSourceContext *test = ctx->priv;
476 int x, y, w = picref->video->w, h = picref->video->h;
478 for (y = 0; y < h; y++) {
479 for (x = 0; x < picref->video->w; x++) {
481 int r = 0, g = 0, b = 0;
484 else if (3*y < 2*h) g = c;
487 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
488 ctx->outputs[0]->format, test->rgba_map);
493 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque)
495 TestSourceContext *test = ctx->priv;
497 test->class = &rgbtestsrc_class;
498 test->fill_picture_fn = rgbtest_fill_picture;
499 return init(ctx, args, opaque);
502 static int rgbtest_query_formats(AVFilterContext *ctx)
504 static const enum PixelFormat pix_fmts[] = {
505 PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
506 PIX_FMT_BGR24, PIX_FMT_RGB24,
507 PIX_FMT_RGB444, PIX_FMT_BGR444,
508 PIX_FMT_RGB565, PIX_FMT_BGR565,
509 PIX_FMT_RGB555, PIX_FMT_BGR555,
512 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
516 static int rgbtest_config_props(AVFilterLink *outlink)
518 TestSourceContext *test = outlink->src->priv;
520 switch (outlink->format) {
521 case PIX_FMT_ARGB: test->rgba_map[A] = 0; test->rgba_map[R] = 1; test->rgba_map[G] = 2; test->rgba_map[B] = 3; break;
522 case PIX_FMT_ABGR: test->rgba_map[A] = 0; test->rgba_map[B] = 1; test->rgba_map[G] = 2; test->rgba_map[R] = 3; break;
524 case PIX_FMT_RGB24: test->rgba_map[R] = 0; test->rgba_map[G] = 1; test->rgba_map[B] = 2; test->rgba_map[A] = 3; break;
526 case PIX_FMT_BGR24: test->rgba_map[B] = 0; test->rgba_map[G] = 1; test->rgba_map[R] = 2; test->rgba_map[A] = 3; break;
529 return config_props(outlink);
532 AVFilter avfilter_vsrc_rgbtestsrc = {
533 .name = "rgbtestsrc",
534 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
535 .priv_size = sizeof(TestSourceContext),
536 .init = rgbtest_init,
538 .query_formats = rgbtest_query_formats,
540 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
542 .outputs = (const AVFilterPad[]) {{ .name = "default",
543 .type = AVMEDIA_TYPE_VIDEO,
544 .request_frame = request_frame,
545 .config_props = rgbtest_config_props, },
549 #endif /* CONFIG_RGBTESTSRC_FILTER */