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"
45 unsigned int nb_frame;
48 char *size; ///< video frame size
49 char *rate; ///< video frame rate
50 char *duration; ///< total duration of the generated video
51 AVRational sar; ///< sample aspect ratio
53 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
55 /* only used by rgbtest */
59 #define OFFSET(x) offsetof(TestSourceContext, x)
61 static const AVOption testsrc_options[] = {
62 { "size", "set video size", OFFSET(size), FF_OPT_TYPE_STRING, {.str = "320x240"}},
63 { "s", "set video size", OFFSET(size), FF_OPT_TYPE_STRING, {.str = "320x240"}},
64 { "rate", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
65 { "r", "set video rate", OFFSET(rate), FF_OPT_TYPE_STRING, {.str = "25"}, },
66 { "duration", "set video duration", OFFSET(duration), FF_OPT_TYPE_STRING, {.str = NULL}, },
67 { "sar", "set video sample aspect ratio", OFFSET(sar), FF_OPT_TYPE_RATIONAL, {1}, 0, INT_MAX },
71 static av_cold int init_common(AVFilterContext *ctx, const char *args, void *opaque)
73 TestSourceContext *test = ctx->priv;
74 AVRational frame_rate_q;
75 int64_t duration = -1;
78 av_opt_set_defaults(test);
80 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
81 av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
85 if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
86 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", test->size);
90 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
91 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
92 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
96 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
97 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
101 test->time_base.num = frame_rate_q.den;
102 test->time_base.den = frame_rate_q.num;
103 test->max_pts = duration >= 0 ?
104 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
108 av_log(ctx, AV_LOG_DEBUG, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
109 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
110 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
111 test->sar.num, test->sar.den);
115 static int config_props(AVFilterLink *outlink)
117 TestSourceContext *test = outlink->src->priv;
119 outlink->w = test->w;
120 outlink->h = test->h;
121 outlink->sample_aspect_ratio = test->sar;
122 outlink->time_base = test->time_base;
127 static int request_frame(AVFilterLink *outlink)
129 TestSourceContext *test = outlink->src->priv;
130 AVFilterBufferRef *picref;
132 if (test->max_pts >= 0 && test->pts > test->max_pts)
134 picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE,
136 picref->pts = test->pts++;
138 picref->video->key_frame = 1;
139 picref->video->interlaced = 0;
140 picref->video->pict_type = AV_PICTURE_TYPE_I;
141 picref->video->pixel_aspect = test->sar;
143 test->fill_picture_fn(outlink->src, picref);
145 avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
146 avfilter_draw_slice(outlink, 0, picref->video->h, 1);
147 avfilter_end_frame(outlink);
148 avfilter_unref_buffer(picref);
153 #if CONFIG_TESTSRC_FILTER
155 static const char *testsrc_get_name(void *ctx)
160 static const AVClass testsrc_class = {
161 .class_name = "TestSourceContext",
162 .item_name = testsrc_get_name,
163 .option = testsrc_options,
167 * Fill a rectangle with value val.
169 * @param val the RGB value to set
170 * @param dst pointer to the destination buffer to fill
171 * @param dst_linesize linesize of destination
172 * @param segment_width width of the segment
173 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
174 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
175 * @param w width of the rectangle to draw, expressed as a number of segment_width units
176 * @param h height of the rectangle to draw, expressed as a number of segment_width units
178 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
179 unsigned x, unsigned y, unsigned w, unsigned h)
184 dst += segment_width * (step * x + y * dst_linesize);
185 w *= segment_width * step;
187 for (i = 0; i < h; i++) {
193 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
194 unsigned segment_width)
199 #define LEFT_TOP_VBAR 8
200 #define LEFT_BOT_VBAR 16
201 #define RIGHT_TOP_VBAR 32
202 #define RIGHT_BOT_VBAR 64
206 { 1, 0, 5, 1 }, /* TOP_HBAR */
207 { 1, 6, 5, 1 }, /* MID_HBAR */
208 { 1, 12, 5, 1 }, /* BOT_HBAR */
209 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
210 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
211 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
212 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
214 static const unsigned char masks[10] = {
215 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
216 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
217 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
218 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
219 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
220 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
221 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
222 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
223 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
224 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
226 unsigned mask = masks[digit];
229 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
230 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
232 draw_rectangle(255, dst, dst_linesize, segment_width,
233 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
236 #define GRADIENT_SIZE (6 * 256)
238 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
240 TestSourceContext *test = ctx->priv;
243 int color, color_rest;
247 int dquad_x, dquad_y;
248 int grad, dgrad, rgrad, drgrad;
252 uint8_t *data = picref->data[0];
253 int width = picref->video->w;
254 int height = picref->video->h;
256 /* draw colored bars and circle */
257 radius = (width + height) / 4;
258 quad0 = width * width / 4 + height * height / 4 - radius * radius;
259 dquad_y = 1 - height;
261 for (y = 0; y < height; y++) {
267 for (x = 0; x < width; x++) {
273 *(p++) = icolor & 1 ? 255 : 0;
274 *(p++) = icolor & 2 ? 255 : 0;
275 *(p++) = icolor & 4 ? 255 : 0;
277 if (color_rest >= width) {
284 p0 += picref->linesize[0];
287 /* draw sliding color line */
288 p = data + picref->linesize[0] * height * 3/4;
289 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
292 dgrad = GRADIENT_SIZE / width;
293 drgrad = GRADIENT_SIZE % width;
294 for (x = 0; x < width; x++) {
296 grad < 256 || grad >= 5 * 256 ? 255 :
297 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
298 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
300 grad >= 4 * 256 ? 0 :
301 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
302 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
305 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
306 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
309 if (rgrad >= GRADIENT_SIZE) {
311 rgrad -= GRADIENT_SIZE;
313 if (grad >= GRADIENT_SIZE)
314 grad -= GRADIENT_SIZE;
316 for (y = height / 8; y > 0; y--) {
317 memcpy(p, p - picref->linesize[0], 3 * width);
318 p += picref->linesize[0];
322 seg_size = width / 80;
323 if (seg_size >= 1 && height >= 13 * seg_size) {
324 second = test->nb_frame * test->time_base.num / test->time_base.den;
325 x = width - (width - seg_size * 64) / 2;
326 y = (height - seg_size * 13) / 2;
327 p = data + (x*3 + y * picref->linesize[0]);
328 for (i = 0; i < 8; i++) {
329 p -= 3 * 8 * seg_size;
330 draw_digit(second % 10, p, picref->linesize[0], seg_size);
338 static av_cold int test_init(AVFilterContext *ctx, const char *args, void *opaque)
340 TestSourceContext *test = ctx->priv;
342 test->class = &testsrc_class;
343 test->fill_picture_fn = test_fill_picture;
344 return init_common(ctx, args, opaque);
347 static int test_query_formats(AVFilterContext *ctx)
349 static const enum PixelFormat pix_fmts[] = {
350 PIX_FMT_RGB24, PIX_FMT_NONE
352 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
356 AVFilter avfilter_vsrc_testsrc = {
358 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
359 .priv_size = sizeof(TestSourceContext),
362 .query_formats = test_query_formats,
364 .inputs = (AVFilterPad[]) {{ .name = NULL}},
366 .outputs = (AVFilterPad[]) {{ .name = "default",
367 .type = AVMEDIA_TYPE_VIDEO,
368 .request_frame = request_frame,
369 .config_props = config_props, },
373 #endif /* CONFIG_TESTSRC_FILTER */
375 #if CONFIG_RGBTESTSRC_FILTER
377 static const char *rgbtestsrc_get_name(void *ctx)
382 static const AVClass rgbtestsrc_class = {
383 .class_name = "RGBTestSourceContext",
384 .item_name = rgbtestsrc_get_name,
385 .option = testsrc_options,
393 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
394 int x, int y, int r, int g, int b, enum PixelFormat fmt,
401 case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
402 case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
403 case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
404 case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
405 case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
406 case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
409 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
410 p = dst + 3*x + y*dst_linesize;
417 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
418 p = dst + 4*x + y*dst_linesize;
424 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
426 TestSourceContext *test = ctx->priv;
427 int x, y, w = picref->video->w, h = picref->video->h;
429 for (y = 0; y < h; y++) {
430 for (x = 0; x < picref->video->w; x++) {
432 int r = 0, g = 0, b = 0;
435 else if (3*y < 2*h) g = c;
438 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
439 ctx->outputs[0]->format, test->rgba_map);
444 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque)
446 TestSourceContext *test = ctx->priv;
448 test->class = &rgbtestsrc_class;
449 test->fill_picture_fn = rgbtest_fill_picture;
450 return init_common(ctx, args, opaque);
453 static int rgbtest_query_formats(AVFilterContext *ctx)
455 static const enum PixelFormat pix_fmts[] = {
456 PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
457 PIX_FMT_BGR24, PIX_FMT_RGB24,
458 PIX_FMT_RGB444, PIX_FMT_BGR444,
459 PIX_FMT_RGB565, PIX_FMT_BGR565,
460 PIX_FMT_RGB555, PIX_FMT_BGR555,
463 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
467 static int rgbtest_config_props(AVFilterLink *outlink)
469 TestSourceContext *test = outlink->src->priv;
471 switch (outlink->format) {
472 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;
473 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;
475 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;
477 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;
480 return config_props(outlink);
483 AVFilter avfilter_vsrc_rgbtestsrc = {
484 .name = "rgbtestsrc",
485 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
486 .priv_size = sizeof(TestSourceContext),
487 .init = rgbtest_init,
489 .query_formats = rgbtest_query_formats,
491 .inputs = (AVFilterPad[]) {{ .name = NULL}},
493 .outputs = (AVFilterPad[]) {{ .name = "default",
494 .type = AVMEDIA_TYPE_VIDEO,
495 .request_frame = request_frame,
496 .config_props = rgbtest_config_props, },
500 #endif /* CONFIG_RGBTESTSRC_FILTER */