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 *size; ///< video frame size
47 char *rate; ///< video frame rate
48 char *duration; ///< total duration of the generated video
49 AVRational sar; ///< sample aspect ratio
52 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
54 /* only used by rgbtest */
58 #define OFFSET(x) offsetof(TestSourceContext, x)
60 static const AVOption testsrc_options[]= {
61 { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, 0, 0 },
62 { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, 0, 0 },
63 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
64 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
65 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
66 { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
67 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX },
68 { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.dbl=0}, INT_MIN, INT_MAX },
69 { "n", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.dbl=0}, INT_MIN, INT_MAX },
73 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
75 TestSourceContext *test = ctx->priv;
76 AVRational frame_rate_q;
77 int64_t duration = -1;
80 av_opt_set_defaults(test);
82 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
83 av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
87 if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
88 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", test->size);
91 av_freep(&test->size);
93 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
94 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
95 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
98 av_freep(&test->rate);
100 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
101 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
104 av_freep(&test->duration);
106 if (test->nb_decimals && strcmp(ctx->filter->name, "testsrc")) {
107 av_log(ctx, AV_LOG_WARNING,
108 "Option 'decimals' is ignored with source '%s'\n",
112 test->time_base.num = frame_rate_q.den;
113 test->time_base.den = frame_rate_q.num;
114 test->max_pts = duration >= 0 ?
115 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
119 av_log(ctx, AV_LOG_INFO, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
120 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
121 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
122 test->sar.num, test->sar.den);
126 static int config_props(AVFilterLink *outlink)
128 TestSourceContext *test = outlink->src->priv;
130 outlink->w = test->w;
131 outlink->h = test->h;
132 outlink->sample_aspect_ratio = test->sar;
133 outlink->time_base = test->time_base;
138 static int request_frame(AVFilterLink *outlink)
140 TestSourceContext *test = outlink->src->priv;
141 AVFilterBufferRef *picref;
143 if (test->max_pts >= 0 && test->pts >= test->max_pts)
145 picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE,
147 picref->pts = test->pts++;
149 picref->video->key_frame = 1;
150 picref->video->interlaced = 0;
151 picref->video->pict_type = AV_PICTURE_TYPE_I;
152 picref->video->sample_aspect_ratio = test->sar;
153 test->fill_picture_fn(outlink->src, picref);
156 avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
157 avfilter_draw_slice(outlink, 0, picref->video->h, 1);
158 avfilter_end_frame(outlink);
159 avfilter_unref_buffer(picref);
164 #if CONFIG_NULLSRC_FILTER
166 static const char *nullsrc_get_name(void *ctx)
171 static const AVClass nullsrc_class = {
172 .class_name = "NullSourceContext",
173 .item_name = nullsrc_get_name,
174 .option = testsrc_options,
177 static void nullsrc_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { }
179 static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args, void *opaque)
181 TestSourceContext *test = ctx->priv;
183 test->class = &nullsrc_class;
184 test->fill_picture_fn = nullsrc_fill_picture;
185 return init(ctx, args, opaque);
188 AVFilter avfilter_vsrc_nullsrc = {
190 .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
191 .init = nullsrc_init,
192 .priv_size = sizeof(TestSourceContext),
194 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
195 .outputs = (const AVFilterPad[]) {{ .name = "default",
196 .type = AVMEDIA_TYPE_VIDEO,
197 .request_frame = request_frame,
198 .config_props = config_props, },
202 #endif /* CONFIG_NULLSRC_FILTER */
204 #if CONFIG_TESTSRC_FILTER
206 static const char *testsrc_get_name(void *ctx)
211 static const AVClass testsrc_class = {
212 .class_name = "TestSourceContext",
213 .item_name = testsrc_get_name,
214 .option = testsrc_options,
218 * Fill a rectangle with value val.
220 * @param val the RGB value to set
221 * @param dst pointer to the destination buffer to fill
222 * @param dst_linesize linesize of destination
223 * @param segment_width width of the segment
224 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
225 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
226 * @param w width of the rectangle to draw, expressed as a number of segment_width units
227 * @param h height of the rectangle to draw, expressed as a number of segment_width units
229 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
230 unsigned x, unsigned y, unsigned w, unsigned h)
235 dst += segment_width * (step * x + y * dst_linesize);
236 w *= segment_width * step;
238 for (i = 0; i < h; i++) {
244 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
245 unsigned segment_width)
250 #define LEFT_TOP_VBAR 8
251 #define LEFT_BOT_VBAR 16
252 #define RIGHT_TOP_VBAR 32
253 #define RIGHT_BOT_VBAR 64
257 { 1, 0, 5, 1 }, /* TOP_HBAR */
258 { 1, 6, 5, 1 }, /* MID_HBAR */
259 { 1, 12, 5, 1 }, /* BOT_HBAR */
260 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
261 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
262 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
263 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
265 static const unsigned char masks[10] = {
266 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
267 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
268 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
269 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
270 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
271 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
272 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
273 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
274 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
275 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
277 unsigned mask = masks[digit];
280 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
281 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
283 draw_rectangle(255, dst, dst_linesize, segment_width,
284 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
287 #define GRADIENT_SIZE (6 * 256)
289 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
291 TestSourceContext *test = ctx->priv;
294 int color, color_rest;
298 int dquad_x, dquad_y;
299 int grad, dgrad, rgrad, drgrad;
303 uint8_t *data = picref->data[0];
304 int width = picref->video->w;
305 int height = picref->video->h;
307 /* draw colored bars and circle */
308 radius = (width + height) / 4;
309 quad0 = width * width / 4 + height * height / 4 - radius * radius;
310 dquad_y = 1 - height;
312 for (y = 0; y < height; y++) {
318 for (x = 0; x < width; x++) {
324 *(p++) = icolor & 1 ? 255 : 0;
325 *(p++) = icolor & 2 ? 255 : 0;
326 *(p++) = icolor & 4 ? 255 : 0;
328 if (color_rest >= width) {
335 p0 += picref->linesize[0];
338 /* draw sliding color line */
339 p0 = p = data + picref->linesize[0] * height * 3/4;
340 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
343 dgrad = GRADIENT_SIZE / width;
344 drgrad = GRADIENT_SIZE % width;
345 for (x = 0; x < width; x++) {
347 grad < 256 || grad >= 5 * 256 ? 255 :
348 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
349 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
351 grad >= 4 * 256 ? 0 :
352 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
353 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
356 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
357 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
360 if (rgrad >= GRADIENT_SIZE) {
362 rgrad -= GRADIENT_SIZE;
364 if (grad >= GRADIENT_SIZE)
365 grad -= GRADIENT_SIZE;
368 for (y = height / 8; y > 0; y--) {
369 memcpy(p+picref->linesize[0], p, 3 * width);
370 p += picref->linesize[0];
374 seg_size = width / 80;
375 if (seg_size >= 1 && height >= 13 * seg_size) {
376 double time = av_q2d(test->time_base) * test->nb_frame *
377 pow(10, test->nb_decimals);
381 x = width - (width - seg_size * 64) / 2;
382 y = (height - seg_size * 13) / 2;
383 p = data + (x*3 + y * picref->linesize[0]);
384 for (i = 0; i < 8; i++) {
385 p -= 3 * 8 * seg_size;
386 draw_digit(second % 10, p, picref->linesize[0], seg_size);
394 static av_cold int test_init(AVFilterContext *ctx, const char *args, void *opaque)
396 TestSourceContext *test = ctx->priv;
398 test->class = &testsrc_class;
399 test->fill_picture_fn = test_fill_picture;
400 return init(ctx, args, opaque);
403 static int test_query_formats(AVFilterContext *ctx)
405 static const enum PixelFormat pix_fmts[] = {
406 PIX_FMT_RGB24, PIX_FMT_NONE
408 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
412 AVFilter avfilter_vsrc_testsrc = {
414 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
415 .priv_size = sizeof(TestSourceContext),
418 .query_formats = test_query_formats,
420 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
422 .outputs = (const AVFilterPad[]) {{ .name = "default",
423 .type = AVMEDIA_TYPE_VIDEO,
424 .request_frame = request_frame,
425 .config_props = config_props, },
429 #endif /* CONFIG_TESTSRC_FILTER */
431 #if CONFIG_RGBTESTSRC_FILTER
433 static const char *rgbtestsrc_get_name(void *ctx)
438 static const AVClass rgbtestsrc_class = {
439 .class_name = "RGBTestSourceContext",
440 .item_name = rgbtestsrc_get_name,
441 .option = testsrc_options,
449 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
450 int x, int y, int r, int g, int b, enum PixelFormat fmt,
457 case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
458 case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
459 case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
460 case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
461 case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
462 case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
465 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
466 p = dst + 3*x + y*dst_linesize;
473 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
474 p = dst + 4*x + y*dst_linesize;
480 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
482 TestSourceContext *test = ctx->priv;
483 int x, y, w = picref->video->w, h = picref->video->h;
485 for (y = 0; y < h; y++) {
486 for (x = 0; x < picref->video->w; x++) {
488 int r = 0, g = 0, b = 0;
491 else if (3*y < 2*h) g = c;
494 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
495 ctx->outputs[0]->format, test->rgba_map);
500 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque)
502 TestSourceContext *test = ctx->priv;
504 test->class = &rgbtestsrc_class;
505 test->fill_picture_fn = rgbtest_fill_picture;
506 return init(ctx, args, opaque);
509 static int rgbtest_query_formats(AVFilterContext *ctx)
511 static const enum PixelFormat pix_fmts[] = {
512 PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
513 PIX_FMT_BGR24, PIX_FMT_RGB24,
514 PIX_FMT_RGB444, PIX_FMT_BGR444,
515 PIX_FMT_RGB565, PIX_FMT_BGR565,
516 PIX_FMT_RGB555, PIX_FMT_BGR555,
519 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
523 static int rgbtest_config_props(AVFilterLink *outlink)
525 TestSourceContext *test = outlink->src->priv;
527 switch (outlink->format) {
528 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;
529 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;
531 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;
533 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;
536 return config_props(outlink);
539 AVFilter avfilter_vsrc_rgbtestsrc = {
540 .name = "rgbtestsrc",
541 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
542 .priv_size = sizeof(TestSourceContext),
543 .init = rgbtest_init,
545 .query_formats = rgbtest_query_formats,
547 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
549 .outputs = (const AVFilterPad[]) {{ .name = "default",
550 .type = AVMEDIA_TYPE_VIDEO,
551 .request_frame = request_frame,
552 .config_props = rgbtest_config_props, },
556 #endif /* CONFIG_RGBTESTSRC_FILTER */