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/mathematics.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/intreadwrite.h"
38 #include "libavutil/parseutils.h"
47 unsigned int nb_frame;
50 char *size; ///< video frame size
51 char *rate; ///< video frame rate
52 char *duration; ///< total duration of the generated video
53 AVRational sar; ///< sample aspect ratio
55 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
57 /* only used by rgbtest */
61 #define OFFSET(x) offsetof(TestSourceContext, x)
63 static const AVOption testsrc_options[] = {
64 { "size", "set video size", OFFSET(size), FF_OPT_TYPE_STRING, {.str = "320x240"}},
65 { "s", "set video size", OFFSET(size), FF_OPT_TYPE_STRING, {.str = "320x240"}},
66 { "rate", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
67 { "r", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
68 { "duration", "set video duration", OFFSET(duration), FF_OPT_TYPE_STRING, {.str = NULL}, },
69 { "sar", "set video sample aspect ratio", OFFSET(sar), FF_OPT_TYPE_RATIONAL, {1}, 0, INT_MAX },
73 static av_cold int init_common(AVFilterContext *ctx, const char *args)
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);
92 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
93 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
94 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
98 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
99 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
103 test->time_base.num = frame_rate_q.den;
104 test->time_base.den = frame_rate_q.num;
105 test->max_pts = duration >= 0 ?
106 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
110 av_log(ctx, AV_LOG_DEBUG, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
111 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
112 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
113 test->sar.num, test->sar.den);
117 static int config_props(AVFilterLink *outlink)
119 TestSourceContext *test = outlink->src->priv;
121 outlink->w = test->w;
122 outlink->h = test->h;
123 outlink->sample_aspect_ratio = test->sar;
124 outlink->time_base = test->time_base;
129 static int request_frame(AVFilterLink *outlink)
131 TestSourceContext *test = outlink->src->priv;
132 AVFilterBufferRef *picref;
135 if (test->max_pts >= 0 && test->pts > test->max_pts)
137 picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, test->w, test->h);
139 return AVERROR(ENOMEM);
141 picref->pts = test->pts++;
143 picref->video->key_frame = 1;
144 picref->video->interlaced = 0;
145 picref->video->pict_type = AV_PICTURE_TYPE_I;
146 picref->video->pixel_aspect = test->sar;
148 test->fill_picture_fn(outlink->src, picref);
150 if ((ret = ff_start_frame(outlink, picref)) < 0 ||
151 (ret = ff_draw_slice(outlink, 0, test->h, 1)) < 0 ||
152 (ret = ff_end_frame(outlink)) < 0)
158 #if CONFIG_TESTSRC_FILTER
160 static const char *testsrc_get_name(void *ctx)
165 static const AVClass testsrc_class = {
166 .class_name = "TestSourceContext",
167 .item_name = testsrc_get_name,
168 .option = testsrc_options,
172 * Fill a rectangle with value val.
174 * @param val the RGB value to set
175 * @param dst pointer to the destination buffer to fill
176 * @param dst_linesize linesize of destination
177 * @param segment_width width of the segment
178 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
179 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
180 * @param w width of the rectangle to draw, expressed as a number of segment_width units
181 * @param h height of the rectangle to draw, expressed as a number of segment_width units
183 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
184 unsigned x, unsigned y, unsigned w, unsigned h)
189 dst += segment_width * (step * x + y * dst_linesize);
190 w *= segment_width * step;
192 for (i = 0; i < h; i++) {
198 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
199 unsigned segment_width)
204 #define LEFT_TOP_VBAR 8
205 #define LEFT_BOT_VBAR 16
206 #define RIGHT_TOP_VBAR 32
207 #define RIGHT_BOT_VBAR 64
211 { 1, 0, 5, 1 }, /* TOP_HBAR */
212 { 1, 6, 5, 1 }, /* MID_HBAR */
213 { 1, 12, 5, 1 }, /* BOT_HBAR */
214 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
215 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
216 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
217 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
219 static const unsigned char masks[10] = {
220 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
221 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
222 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
223 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
224 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
225 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
226 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
227 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
228 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
229 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
231 unsigned mask = masks[digit];
234 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
235 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
237 draw_rectangle(255, dst, dst_linesize, segment_width,
238 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
241 #define GRADIENT_SIZE (6 * 256)
243 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
245 TestSourceContext *test = ctx->priv;
248 int color, color_rest;
252 int dquad_x, dquad_y;
253 int grad, dgrad, rgrad, drgrad;
257 uint8_t *data = picref->data[0];
258 int width = picref->video->w;
259 int height = picref->video->h;
261 /* draw colored bars and circle */
262 radius = (width + height) / 4;
263 quad0 = width * width / 4 + height * height / 4 - radius * radius;
264 dquad_y = 1 - height;
266 for (y = 0; y < height; y++) {
272 for (x = 0; x < width; x++) {
278 *(p++) = icolor & 1 ? 255 : 0;
279 *(p++) = icolor & 2 ? 255 : 0;
280 *(p++) = icolor & 4 ? 255 : 0;
282 if (color_rest >= width) {
289 p0 += picref->linesize[0];
292 /* draw sliding color line */
293 p = data + picref->linesize[0] * height * 3/4;
294 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
297 dgrad = GRADIENT_SIZE / width;
298 drgrad = GRADIENT_SIZE % width;
299 for (x = 0; x < width; x++) {
301 grad < 256 || grad >= 5 * 256 ? 255 :
302 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
303 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
305 grad >= 4 * 256 ? 0 :
306 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
307 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
310 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
311 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
314 if (rgrad >= GRADIENT_SIZE) {
316 rgrad -= GRADIENT_SIZE;
318 if (grad >= GRADIENT_SIZE)
319 grad -= GRADIENT_SIZE;
321 for (y = height / 8; y > 0; y--) {
322 memcpy(p, p - picref->linesize[0], 3 * width);
323 p += picref->linesize[0];
327 seg_size = width / 80;
328 if (seg_size >= 1 && height >= 13 * seg_size) {
329 second = test->nb_frame * test->time_base.num / test->time_base.den;
330 x = width - (width - seg_size * 64) / 2;
331 y = (height - seg_size * 13) / 2;
332 p = data + (x*3 + y * picref->linesize[0]);
333 for (i = 0; i < 8; i++) {
334 p -= 3 * 8 * seg_size;
335 draw_digit(second % 10, p, picref->linesize[0], seg_size);
343 static av_cold int test_init(AVFilterContext *ctx, const char *args)
345 TestSourceContext *test = ctx->priv;
347 test->class = &testsrc_class;
348 test->fill_picture_fn = test_fill_picture;
349 return init_common(ctx, args);
352 static int test_query_formats(AVFilterContext *ctx)
354 static const enum PixelFormat pix_fmts[] = {
355 PIX_FMT_RGB24, PIX_FMT_NONE
357 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
361 AVFilter avfilter_vsrc_testsrc = {
363 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
364 .priv_size = sizeof(TestSourceContext),
367 .query_formats = test_query_formats,
369 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
371 .outputs = (const AVFilterPad[]) {{ .name = "default",
372 .type = AVMEDIA_TYPE_VIDEO,
373 .request_frame = request_frame,
374 .config_props = config_props, },
378 #endif /* CONFIG_TESTSRC_FILTER */
380 #if CONFIG_RGBTESTSRC_FILTER
382 static const char *rgbtestsrc_get_name(void *ctx)
387 static const AVClass rgbtestsrc_class = {
388 .class_name = "RGBTestSourceContext",
389 .item_name = rgbtestsrc_get_name,
390 .option = testsrc_options,
398 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
399 int x, int y, int r, int g, int b, enum PixelFormat fmt,
406 case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
407 case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
408 case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
409 case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
410 case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
411 case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
414 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
415 p = dst + 3*x + y*dst_linesize;
422 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
423 p = dst + 4*x + y*dst_linesize;
429 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
431 TestSourceContext *test = ctx->priv;
432 int x, y, w = picref->video->w, h = picref->video->h;
434 for (y = 0; y < h; y++) {
435 for (x = 0; x < picref->video->w; x++) {
437 int r = 0, g = 0, b = 0;
440 else if (3*y < 2*h) g = c;
443 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
444 ctx->outputs[0]->format, test->rgba_map);
449 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args)
451 TestSourceContext *test = ctx->priv;
453 test->class = &rgbtestsrc_class;
454 test->fill_picture_fn = rgbtest_fill_picture;
455 return init_common(ctx, args);
458 static int rgbtest_query_formats(AVFilterContext *ctx)
460 static const enum PixelFormat pix_fmts[] = {
461 PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
462 PIX_FMT_BGR24, PIX_FMT_RGB24,
463 PIX_FMT_RGB444, PIX_FMT_BGR444,
464 PIX_FMT_RGB565, PIX_FMT_BGR565,
465 PIX_FMT_RGB555, PIX_FMT_BGR555,
468 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
472 static int rgbtest_config_props(AVFilterLink *outlink)
474 TestSourceContext *test = outlink->src->priv;
476 switch (outlink->format) {
477 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;
478 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;
480 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;
482 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;
485 return config_props(outlink);
488 AVFilter avfilter_vsrc_rgbtestsrc = {
489 .name = "rgbtestsrc",
490 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
491 .priv_size = sizeof(TestSourceContext),
492 .init = rgbtest_init,
494 .query_formats = rgbtest_query_formats,
496 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
498 .outputs = (const AVFilterPad[]) {{ .name = "default",
499 .type = AVMEDIA_TYPE_VIDEO,
500 .request_frame = request_frame,
501 .config_props = rgbtest_config_props, },
505 #endif /* CONFIG_RGBTESTSRC_FILTER */