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"
45 typedef struct TestSourceContext {
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, AVFrame *frame);
58 /* only used by rgbtest */
62 #define OFFSET(x) offsetof(TestSourceContext, x)
63 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM
65 static const AVOption testsrc_options[] = {
66 { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, .flags = FLAGS },
67 { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, .flags = FLAGS },
68 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, .flags = FLAGS },
69 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, .flags = FLAGS },
70 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
71 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, INT_MAX, FLAGS },
75 static av_cold int init_common(AVFilterContext *ctx)
77 TestSourceContext *test = ctx->priv;
78 AVRational frame_rate_q;
79 int64_t duration = -1;
82 if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
83 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", test->size);
87 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
88 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
89 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", 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);
98 test->time_base.num = frame_rate_q.den;
99 test->time_base.den = frame_rate_q.num;
100 test->max_pts = duration >= 0 ?
101 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
105 av_log(ctx, AV_LOG_DEBUG, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
106 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
107 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
108 test->sar.num, test->sar.den);
112 static int config_props(AVFilterLink *outlink)
114 TestSourceContext *test = outlink->src->priv;
116 outlink->w = test->w;
117 outlink->h = test->h;
118 outlink->sample_aspect_ratio = test->sar;
119 outlink->time_base = test->time_base;
124 static int request_frame(AVFilterLink *outlink)
126 TestSourceContext *test = outlink->src->priv;
129 if (test->max_pts >= 0 && test->pts > test->max_pts)
131 frame = ff_get_video_buffer(outlink, test->w, test->h);
133 return AVERROR(ENOMEM);
135 frame->pts = test->pts++;
136 frame->key_frame = 1;
137 frame->interlaced_frame = 0;
138 frame->pict_type = AV_PICTURE_TYPE_I;
139 frame->sample_aspect_ratio = test->sar;
141 test->fill_picture_fn(outlink->src, frame);
143 return ff_filter_frame(outlink, frame);
146 #if CONFIG_TESTSRC_FILTER
148 static const char *testsrc_get_name(void *ctx)
153 static const AVClass testsrc_class = {
154 .class_name = "TestSourceContext",
155 .item_name = testsrc_get_name,
156 .option = testsrc_options,
160 * Fill a rectangle with value val.
162 * @param val the RGB value to set
163 * @param dst pointer to the destination buffer to fill
164 * @param dst_linesize linesize of destination
165 * @param segment_width width of the segment
166 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
167 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
168 * @param w width of the rectangle to draw, expressed as a number of segment_width units
169 * @param h height of the rectangle to draw, expressed as a number of segment_width units
171 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
172 unsigned x, unsigned y, unsigned w, unsigned h)
177 dst += segment_width * (step * x + y * dst_linesize);
178 w *= segment_width * step;
180 for (i = 0; i < h; i++) {
186 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
187 unsigned segment_width)
192 #define LEFT_TOP_VBAR 8
193 #define LEFT_BOT_VBAR 16
194 #define RIGHT_TOP_VBAR 32
195 #define RIGHT_BOT_VBAR 64
199 { 1, 0, 5, 1 }, /* TOP_HBAR */
200 { 1, 6, 5, 1 }, /* MID_HBAR */
201 { 1, 12, 5, 1 }, /* BOT_HBAR */
202 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
203 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
204 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
205 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
207 static const unsigned char masks[10] = {
208 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
209 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
210 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
211 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
212 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
213 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
214 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
215 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
216 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
217 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
219 unsigned mask = masks[digit];
222 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
223 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
225 draw_rectangle(255, dst, dst_linesize, segment_width,
226 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
229 #define GRADIENT_SIZE (6 * 256)
231 static void test_fill_picture(AVFilterContext *ctx, AVFrame *frame)
233 TestSourceContext *test = ctx->priv;
236 int color, color_rest;
240 int dquad_x, dquad_y;
241 int grad, dgrad, rgrad, drgrad;
245 uint8_t *data = frame->data[0];
246 int width = frame->width;
247 int height = frame->height;
249 /* draw colored bars and circle */
250 radius = (width + height) / 4;
251 quad0 = width * width / 4 + height * height / 4 - radius * radius;
252 dquad_y = 1 - height;
254 for (y = 0; y < height; y++) {
260 for (x = 0; x < width; x++) {
266 *(p++) = icolor & 1 ? 255 : 0;
267 *(p++) = icolor & 2 ? 255 : 0;
268 *(p++) = icolor & 4 ? 255 : 0;
270 if (color_rest >= width) {
277 p0 += frame->linesize[0];
280 /* draw sliding color line */
281 p = data + frame->linesize[0] * height * 3/4;
282 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
285 dgrad = GRADIENT_SIZE / width;
286 drgrad = GRADIENT_SIZE % width;
287 for (x = 0; x < width; x++) {
289 grad < 256 || grad >= 5 * 256 ? 255 :
290 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
291 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
293 grad >= 4 * 256 ? 0 :
294 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
295 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
298 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
299 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
302 if (rgrad >= GRADIENT_SIZE) {
304 rgrad -= GRADIENT_SIZE;
306 if (grad >= GRADIENT_SIZE)
307 grad -= GRADIENT_SIZE;
309 for (y = height / 8; y > 0; y--) {
310 memcpy(p, p - frame->linesize[0], 3 * width);
311 p += frame->linesize[0];
315 seg_size = width / 80;
316 if (seg_size >= 1 && height >= 13 * seg_size) {
317 second = test->nb_frame * test->time_base.num / test->time_base.den;
318 x = width - (width - seg_size * 64) / 2;
319 y = (height - seg_size * 13) / 2;
320 p = data + (x*3 + y * frame->linesize[0]);
321 for (i = 0; i < 8; i++) {
322 p -= 3 * 8 * seg_size;
323 draw_digit(second % 10, p, frame->linesize[0], seg_size);
331 static av_cold int test_init(AVFilterContext *ctx)
333 TestSourceContext *test = ctx->priv;
335 test->fill_picture_fn = test_fill_picture;
336 return init_common(ctx);
339 static int test_query_formats(AVFilterContext *ctx)
341 static const enum AVPixelFormat pix_fmts[] = {
342 AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
344 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
348 static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
351 .type = AVMEDIA_TYPE_VIDEO,
352 .request_frame = request_frame,
353 .config_props = config_props,
358 AVFilter ff_vsrc_testsrc = {
360 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
361 .priv_size = sizeof(TestSourceContext),
362 .priv_class = &testsrc_class,
365 .query_formats = test_query_formats,
369 .outputs = avfilter_vsrc_testsrc_outputs,
372 #endif /* CONFIG_TESTSRC_FILTER */
374 #if CONFIG_RGBTESTSRC_FILTER
376 static const char *rgbtestsrc_get_name(void *ctx)
381 static const AVClass rgbtestsrc_class = {
382 .class_name = "RGBTestSourceContext",
383 .item_name = rgbtestsrc_get_name,
384 .option = testsrc_options,
392 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
393 int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
400 case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
401 case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
402 case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
403 case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
404 case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
405 case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
406 case AV_PIX_FMT_RGB24:
407 case AV_PIX_FMT_BGR24:
408 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
409 p = dst + 3*x + y*dst_linesize;
412 case AV_PIX_FMT_RGBA:
413 case AV_PIX_FMT_BGRA:
414 case AV_PIX_FMT_ARGB:
415 case AV_PIX_FMT_ABGR:
416 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
417 p = dst + 4*x + y*dst_linesize;
423 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFrame *frame)
425 TestSourceContext *test = ctx->priv;
426 int x, y, w = frame->width, h = frame->height;
428 for (y = 0; y < h; y++) {
429 for (x = 0; x < w; x++) {
431 int r = 0, g = 0, b = 0;
434 else if (3*y < 2*h) g = c;
437 rgbtest_put_pixel(frame->data[0], frame->linesize[0], x, y, r, g, b,
438 ctx->outputs[0]->format, test->rgba_map);
443 static av_cold int rgbtest_init(AVFilterContext *ctx)
445 TestSourceContext *test = ctx->priv;
447 test->fill_picture_fn = rgbtest_fill_picture;
448 return init_common(ctx);
451 static int rgbtest_query_formats(AVFilterContext *ctx)
453 static const enum AVPixelFormat pix_fmts[] = {
454 AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
455 AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
456 AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
457 AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
458 AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
461 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
465 static int rgbtest_config_props(AVFilterLink *outlink)
467 TestSourceContext *test = outlink->src->priv;
469 switch (outlink->format) {
470 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;
471 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;
472 case AV_PIX_FMT_RGBA:
473 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;
474 case AV_PIX_FMT_BGRA:
475 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;
478 return config_props(outlink);
481 static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
484 .type = AVMEDIA_TYPE_VIDEO,
485 .request_frame = request_frame,
486 .config_props = rgbtest_config_props,
491 AVFilter ff_vsrc_rgbtestsrc = {
492 .name = "rgbtestsrc",
493 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
494 .priv_size = sizeof(TestSourceContext),
495 .priv_class = &rgbtestsrc_class,
496 .init = rgbtest_init,
498 .query_formats = rgbtest_query_formats,
502 .outputs = avfilter_vsrc_rgbtestsrc_outputs,
505 #endif /* CONFIG_RGBTESTSRC_FILTER */