2 * Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
3 * Copyright (c) 2011 Stefano Sabatini
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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/common.h"
36 #include "libavutil/mathematics.h"
37 #include "libavutil/opt.h"
38 #include "libavutil/intreadwrite.h"
39 #include "libavutil/parseutils.h"
48 unsigned int nb_frame;
51 char *size; ///< video frame size
52 char *rate; ///< video frame rate
53 char *duration; ///< total duration of the generated video
54 AVRational sar; ///< sample aspect ratio
56 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
58 /* only used by rgbtest */
62 #define OFFSET(x) offsetof(TestSourceContext, x)
64 static const AVOption testsrc_options[] = {
65 { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
66 { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
67 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
68 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
69 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, },
70 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, INT_MAX },
74 static av_cold int init_common(AVFilterContext *ctx, const char *args)
76 TestSourceContext *test = ctx->priv;
77 AVRational frame_rate_q;
78 int64_t duration = -1;
81 av_opt_set_defaults(test);
83 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
84 av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
88 if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
89 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", 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);
99 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
100 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
104 test->time_base.num = frame_rate_q.den;
105 test->time_base.den = frame_rate_q.num;
106 test->max_pts = duration >= 0 ?
107 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
111 av_log(ctx, AV_LOG_DEBUG, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
112 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
113 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
114 test->sar.num, test->sar.den);
118 static int config_props(AVFilterLink *outlink)
120 TestSourceContext *test = outlink->src->priv;
122 outlink->w = test->w;
123 outlink->h = test->h;
124 outlink->sample_aspect_ratio = test->sar;
125 outlink->time_base = test->time_base;
130 static int request_frame(AVFilterLink *outlink)
132 TestSourceContext *test = outlink->src->priv;
133 AVFilterBufferRef *picref;
136 if (test->max_pts >= 0 && test->pts > test->max_pts)
138 picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, test->w, test->h);
140 return AVERROR(ENOMEM);
142 picref->pts = test->pts++;
144 picref->video->key_frame = 1;
145 picref->video->interlaced = 0;
146 picref->video->pict_type = AV_PICTURE_TYPE_I;
147 picref->video->pixel_aspect = test->sar;
149 test->fill_picture_fn(outlink->src, picref);
151 if ((ret = ff_start_frame(outlink, picref)) < 0 ||
152 (ret = ff_draw_slice(outlink, 0, test->h, 1)) < 0 ||
153 (ret = ff_end_frame(outlink)) < 0)
159 #if CONFIG_TESTSRC_FILTER
161 static const char *testsrc_get_name(void *ctx)
166 static const AVClass testsrc_class = {
167 .class_name = "TestSourceContext",
168 .item_name = testsrc_get_name,
169 .option = testsrc_options,
173 * Fill a rectangle with value val.
175 * @param val the RGB value to set
176 * @param dst pointer to the destination buffer to fill
177 * @param dst_linesize linesize of destination
178 * @param segment_width width of the segment
179 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
180 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
181 * @param w width of the rectangle to draw, expressed as a number of segment_width units
182 * @param h height of the rectangle to draw, expressed as a number of segment_width units
184 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
185 unsigned x, unsigned y, unsigned w, unsigned h)
190 dst += segment_width * (step * x + y * dst_linesize);
191 w *= segment_width * step;
193 for (i = 0; i < h; i++) {
199 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
200 unsigned segment_width)
205 #define LEFT_TOP_VBAR 8
206 #define LEFT_BOT_VBAR 16
207 #define RIGHT_TOP_VBAR 32
208 #define RIGHT_BOT_VBAR 64
212 { 1, 0, 5, 1 }, /* TOP_HBAR */
213 { 1, 6, 5, 1 }, /* MID_HBAR */
214 { 1, 12, 5, 1 }, /* BOT_HBAR */
215 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
216 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
217 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
218 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
220 static const unsigned char masks[10] = {
221 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
222 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
223 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
224 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
225 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
226 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
227 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
228 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
229 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
230 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
232 unsigned mask = masks[digit];
235 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
236 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
238 draw_rectangle(255, dst, dst_linesize, segment_width,
239 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
242 #define GRADIENT_SIZE (6 * 256)
244 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
246 TestSourceContext *test = ctx->priv;
249 int color, color_rest;
253 int dquad_x, dquad_y;
254 int grad, dgrad, rgrad, drgrad;
258 uint8_t *data = picref->data[0];
259 int width = picref->video->w;
260 int height = picref->video->h;
262 /* draw colored bars and circle */
263 radius = (width + height) / 4;
264 quad0 = width * width / 4 + height * height / 4 - radius * radius;
265 dquad_y = 1 - height;
267 for (y = 0; y < height; y++) {
273 for (x = 0; x < width; x++) {
279 *(p++) = icolor & 1 ? 255 : 0;
280 *(p++) = icolor & 2 ? 255 : 0;
281 *(p++) = icolor & 4 ? 255 : 0;
283 if (color_rest >= width) {
290 p0 += picref->linesize[0];
293 /* draw sliding color line */
294 p = data + picref->linesize[0] * height * 3/4;
295 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
298 dgrad = GRADIENT_SIZE / width;
299 drgrad = GRADIENT_SIZE % width;
300 for (x = 0; x < width; x++) {
302 grad < 256 || grad >= 5 * 256 ? 255 :
303 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
304 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
306 grad >= 4 * 256 ? 0 :
307 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
308 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
311 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
312 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
315 if (rgrad >= GRADIENT_SIZE) {
317 rgrad -= GRADIENT_SIZE;
319 if (grad >= GRADIENT_SIZE)
320 grad -= GRADIENT_SIZE;
322 for (y = height / 8; y > 0; y--) {
323 memcpy(p, p - picref->linesize[0], 3 * width);
324 p += picref->linesize[0];
328 seg_size = width / 80;
329 if (seg_size >= 1 && height >= 13 * seg_size) {
330 second = test->nb_frame * test->time_base.num / test->time_base.den;
331 x = width - (width - seg_size * 64) / 2;
332 y = (height - seg_size * 13) / 2;
333 p = data + (x*3 + y * picref->linesize[0]);
334 for (i = 0; i < 8; i++) {
335 p -= 3 * 8 * seg_size;
336 draw_digit(second % 10, p, picref->linesize[0], seg_size);
344 static av_cold int test_init(AVFilterContext *ctx, const char *args)
346 TestSourceContext *test = ctx->priv;
348 test->class = &testsrc_class;
349 test->fill_picture_fn = test_fill_picture;
350 return init_common(ctx, args);
353 static int test_query_formats(AVFilterContext *ctx)
355 static const enum AVPixelFormat pix_fmts[] = {
356 AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
358 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
362 static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
365 .type = AVMEDIA_TYPE_VIDEO,
366 .request_frame = request_frame,
367 .config_props = config_props,
372 AVFilter avfilter_vsrc_testsrc = {
374 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
375 .priv_size = sizeof(TestSourceContext),
378 .query_formats = test_query_formats,
382 .outputs = avfilter_vsrc_testsrc_outputs,
385 #endif /* CONFIG_TESTSRC_FILTER */
387 #if CONFIG_RGBTESTSRC_FILTER
389 static const char *rgbtestsrc_get_name(void *ctx)
394 static const AVClass rgbtestsrc_class = {
395 .class_name = "RGBTestSourceContext",
396 .item_name = rgbtestsrc_get_name,
397 .option = testsrc_options,
405 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
406 int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
413 case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
414 case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
415 case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
416 case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
417 case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
418 case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
419 case AV_PIX_FMT_RGB24:
420 case AV_PIX_FMT_BGR24:
421 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
422 p = dst + 3*x + y*dst_linesize;
425 case AV_PIX_FMT_RGBA:
426 case AV_PIX_FMT_BGRA:
427 case AV_PIX_FMT_ARGB:
428 case AV_PIX_FMT_ABGR:
429 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
430 p = dst + 4*x + y*dst_linesize;
436 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
438 TestSourceContext *test = ctx->priv;
439 int x, y, w = picref->video->w, h = picref->video->h;
441 for (y = 0; y < h; y++) {
442 for (x = 0; x < picref->video->w; x++) {
444 int r = 0, g = 0, b = 0;
447 else if (3*y < 2*h) g = c;
450 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
451 ctx->outputs[0]->format, test->rgba_map);
456 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args)
458 TestSourceContext *test = ctx->priv;
460 test->class = &rgbtestsrc_class;
461 test->fill_picture_fn = rgbtest_fill_picture;
462 return init_common(ctx, args);
465 static int rgbtest_query_formats(AVFilterContext *ctx)
467 static const enum AVPixelFormat pix_fmts[] = {
468 AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
469 AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
470 AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
471 AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
472 AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
475 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
479 static int rgbtest_config_props(AVFilterLink *outlink)
481 TestSourceContext *test = outlink->src->priv;
483 switch (outlink->format) {
484 case AV_PIX_FMT_ARGB: test->rgba_map[A] = 0; test->rgba_map[R] = 1; test->rgba_map[G] = 2; test->rgba_map[B] = 3; break;
485 case AV_PIX_FMT_ABGR: test->rgba_map[A] = 0; test->rgba_map[B] = 1; test->rgba_map[G] = 2; test->rgba_map[R] = 3; break;
486 case AV_PIX_FMT_RGBA:
487 case AV_PIX_FMT_RGB24: test->rgba_map[R] = 0; test->rgba_map[G] = 1; test->rgba_map[B] = 2; test->rgba_map[A] = 3; break;
488 case AV_PIX_FMT_BGRA:
489 case AV_PIX_FMT_BGR24: test->rgba_map[B] = 0; test->rgba_map[G] = 1; test->rgba_map[R] = 2; test->rgba_map[A] = 3; break;
492 return config_props(outlink);
495 static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
498 .type = AVMEDIA_TYPE_VIDEO,
499 .request_frame = request_frame,
500 .config_props = rgbtest_config_props,
505 AVFilter avfilter_vsrc_rgbtestsrc = {
506 .name = "rgbtestsrc",
507 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
508 .priv_size = sizeof(TestSourceContext),
509 .init = rgbtest_init,
511 .query_formats = rgbtest_query_formats,
515 .outputs = avfilter_vsrc_rgbtestsrc_outputs,
518 #endif /* CONFIG_RGBTESTSRC_FILTER */