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
51 void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
53 /* only used by rgbtest */
57 #define OFFSET(x) offsetof(TestSourceContext, x)
59 static const AVOption testsrc_options[]= {
60 { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, 0, 0 },
61 { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, 0, 0 },
62 { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
63 { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
64 { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
65 { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX },
69 static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
71 TestSourceContext *test = ctx->priv;
72 AVRational frame_rate_q;
73 int64_t duration = -1;
76 av_opt_set_defaults(test);
78 if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0) {
79 av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
83 if ((ret = av_parse_video_size(&test->w, &test->h, test->size)) < 0) {
84 av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", test->size);
88 if ((ret = av_parse_video_rate(&frame_rate_q, test->rate)) < 0 ||
89 frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
90 av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", test->rate);
94 if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
95 av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
99 test->time_base.num = frame_rate_q.den;
100 test->time_base.den = frame_rate_q.num;
101 test->max_pts = duration >= 0 ?
102 av_rescale_q(duration, AV_TIME_BASE_Q, test->time_base) : -1;
106 av_log(ctx, AV_LOG_INFO, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
107 test->w, test->h, frame_rate_q.num, frame_rate_q.den,
108 duration < 0 ? -1 : test->max_pts * av_q2d(test->time_base),
109 test->sar.num, test->sar.den);
113 static int config_props(AVFilterLink *outlink)
115 TestSourceContext *test = outlink->src->priv;
117 outlink->w = test->w;
118 outlink->h = test->h;
119 outlink->sample_aspect_ratio = test->sar;
120 outlink->time_base = test->time_base;
125 static int request_frame(AVFilterLink *outlink)
127 TestSourceContext *test = outlink->src->priv;
128 AVFilterBufferRef *picref;
130 if (test->max_pts >= 0 && test->pts >= test->max_pts)
132 picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE,
134 picref->pts = test->pts++;
136 picref->video->key_frame = 1;
137 picref->video->interlaced = 0;
138 picref->video->pict_type = AV_PICTURE_TYPE_I;
139 picref->video->sample_aspect_ratio = test->sar;
140 test->fill_picture_fn(outlink->src, picref);
143 avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
144 avfilter_draw_slice(outlink, 0, picref->video->h, 1);
145 avfilter_end_frame(outlink);
146 avfilter_unref_buffer(picref);
151 #if CONFIG_NULLSRC_FILTER
153 static const char *nullsrc_get_name(void *ctx)
158 static const AVClass nullsrc_class = {
159 .class_name = "NullSourceContext",
160 .item_name = nullsrc_get_name,
161 .option = testsrc_options,
164 static void nullsrc_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) { }
166 static av_cold int nullsrc_init(AVFilterContext *ctx, const char *args, void *opaque)
168 TestSourceContext *test = ctx->priv;
170 test->class = &nullsrc_class;
171 test->fill_picture_fn = nullsrc_fill_picture;
172 return init(ctx, args, opaque);
175 AVFilter avfilter_vsrc_nullsrc = {
177 .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
178 .init = nullsrc_init,
179 .priv_size = sizeof(TestSourceContext),
181 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
182 .outputs = (const AVFilterPad[]) {{ .name = "default",
183 .type = AVMEDIA_TYPE_VIDEO,
184 .request_frame = request_frame,
185 .config_props = config_props, },
189 #endif /* CONFIG_NULLSRC_FILTER */
191 #if CONFIG_TESTSRC_FILTER
193 static const char *testsrc_get_name(void *ctx)
198 static const AVClass testsrc_class = {
199 .class_name = "TestSourceContext",
200 .item_name = testsrc_get_name,
201 .option = testsrc_options,
205 * Fill a rectangle with value val.
207 * @param val the RGB value to set
208 * @param dst pointer to the destination buffer to fill
209 * @param dst_linesize linesize of destination
210 * @param segment_width width of the segment
211 * @param x horizontal coordinate where to draw the rectangle in the destination buffer
212 * @param y horizontal coordinate where to draw the rectangle in the destination buffer
213 * @param w width of the rectangle to draw, expressed as a number of segment_width units
214 * @param h height of the rectangle to draw, expressed as a number of segment_width units
216 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
217 unsigned x, unsigned y, unsigned w, unsigned h)
222 dst += segment_width * (step * x + y * dst_linesize);
223 w *= segment_width * step;
225 for (i = 0; i < h; i++) {
231 static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
232 unsigned segment_width)
237 #define LEFT_TOP_VBAR 8
238 #define LEFT_BOT_VBAR 16
239 #define RIGHT_TOP_VBAR 32
240 #define RIGHT_BOT_VBAR 64
244 { 1, 0, 5, 1 }, /* TOP_HBAR */
245 { 1, 6, 5, 1 }, /* MID_HBAR */
246 { 1, 12, 5, 1 }, /* BOT_HBAR */
247 { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
248 { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
249 { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
250 { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
252 static const unsigned char masks[10] = {
253 /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
254 /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
255 /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
256 /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
257 /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
258 /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
259 /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
260 /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
261 /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
262 /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
264 unsigned mask = masks[digit];
267 draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
268 for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
270 draw_rectangle(255, dst, dst_linesize, segment_width,
271 segments[i].x, segments[i].y, segments[i].w, segments[i].h);
274 #define GRADIENT_SIZE (6 * 256)
276 static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
278 TestSourceContext *test = ctx->priv;
281 int color, color_rest;
285 int dquad_x, dquad_y;
286 int grad, dgrad, rgrad, drgrad;
290 uint8_t *data = picref->data[0];
291 int width = picref->video->w;
292 int height = picref->video->h;
294 /* draw colored bars and circle */
295 radius = (width + height) / 4;
296 quad0 = width * width / 4 + height * height / 4 - radius * radius;
297 dquad_y = 1 - height;
299 for (y = 0; y < height; y++) {
305 for (x = 0; x < width; x++) {
311 *(p++) = icolor & 1 ? 255 : 0;
312 *(p++) = icolor & 2 ? 255 : 0;
313 *(p++) = icolor & 4 ? 255 : 0;
315 if (color_rest >= width) {
322 p0 += picref->linesize[0];
325 /* draw sliding color line */
326 p0 = p = data + picref->linesize[0] * height * 3/4;
327 grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
330 dgrad = GRADIENT_SIZE / width;
331 drgrad = GRADIENT_SIZE % width;
332 for (x = 0; x < width; x++) {
334 grad < 256 || grad >= 5 * 256 ? 255 :
335 grad >= 2 * 256 && grad < 4 * 256 ? 0 :
336 grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
338 grad >= 4 * 256 ? 0 :
339 grad >= 1 * 256 && grad < 3 * 256 ? 255 :
340 grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
343 grad >= 3 * 256 && grad < 5 * 256 ? 255 :
344 grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
347 if (rgrad >= GRADIENT_SIZE) {
349 rgrad -= GRADIENT_SIZE;
351 if (grad >= GRADIENT_SIZE)
352 grad -= GRADIENT_SIZE;
355 for (y = height / 8; y > 0; y--) {
356 memcpy(p+picref->linesize[0], p, 3 * width);
357 p += picref->linesize[0];
361 seg_size = width / 80;
362 if (seg_size >= 1 && height >= 13 * seg_size) {
363 second = test->nb_frame * test->time_base.num / test->time_base.den;
364 x = width - (width - seg_size * 64) / 2;
365 y = (height - seg_size * 13) / 2;
366 p = data + (x*3 + y * picref->linesize[0]);
367 for (i = 0; i < 8; i++) {
368 p -= 3 * 8 * seg_size;
369 draw_digit(second % 10, p, picref->linesize[0], seg_size);
377 static av_cold int test_init(AVFilterContext *ctx, const char *args, void *opaque)
379 TestSourceContext *test = ctx->priv;
381 test->class = &testsrc_class;
382 test->fill_picture_fn = test_fill_picture;
383 return init(ctx, args, opaque);
386 static int test_query_formats(AVFilterContext *ctx)
388 static const enum PixelFormat pix_fmts[] = {
389 PIX_FMT_RGB24, PIX_FMT_NONE
391 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
395 AVFilter avfilter_vsrc_testsrc = {
397 .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
398 .priv_size = sizeof(TestSourceContext),
401 .query_formats = test_query_formats,
403 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
405 .outputs = (const AVFilterPad[]) {{ .name = "default",
406 .type = AVMEDIA_TYPE_VIDEO,
407 .request_frame = request_frame,
408 .config_props = config_props, },
412 #endif /* CONFIG_TESTSRC_FILTER */
414 #if CONFIG_RGBTESTSRC_FILTER
416 static const char *rgbtestsrc_get_name(void *ctx)
421 static const AVClass rgbtestsrc_class = {
422 .class_name = "RGBTestSourceContext",
423 .item_name = rgbtestsrc_get_name,
424 .option = testsrc_options,
432 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
433 int x, int y, int r, int g, int b, enum PixelFormat fmt,
440 case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
441 case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
442 case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
443 case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
444 case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
445 case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
448 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
449 p = dst + 3*x + y*dst_linesize;
456 v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
457 p = dst + 4*x + y*dst_linesize;
463 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
465 TestSourceContext *test = ctx->priv;
466 int x, y, w = picref->video->w, h = picref->video->h;
468 for (y = 0; y < h; y++) {
469 for (x = 0; x < picref->video->w; x++) {
471 int r = 0, g = 0, b = 0;
474 else if (3*y < 2*h) g = c;
477 rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
478 ctx->outputs[0]->format, test->rgba_map);
483 static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque)
485 TestSourceContext *test = ctx->priv;
487 test->class = &rgbtestsrc_class;
488 test->fill_picture_fn = rgbtest_fill_picture;
489 return init(ctx, args, opaque);
492 static int rgbtest_query_formats(AVFilterContext *ctx)
494 static const enum PixelFormat pix_fmts[] = {
495 PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
496 PIX_FMT_BGR24, PIX_FMT_RGB24,
497 PIX_FMT_RGB444, PIX_FMT_BGR444,
498 PIX_FMT_RGB565, PIX_FMT_BGR565,
499 PIX_FMT_RGB555, PIX_FMT_BGR555,
502 avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
506 static int rgbtest_config_props(AVFilterLink *outlink)
508 TestSourceContext *test = outlink->src->priv;
510 switch (outlink->format) {
511 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;
512 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;
514 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;
516 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;
519 return config_props(outlink);
522 AVFilter avfilter_vsrc_rgbtestsrc = {
523 .name = "rgbtestsrc",
524 .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
525 .priv_size = sizeof(TestSourceContext),
526 .init = rgbtest_init,
528 .query_formats = rgbtest_query_formats,
530 .inputs = (const AVFilterPad[]) {{ .name = NULL}},
532 .outputs = (const AVFilterPad[]) {{ .name = "default",
533 .type = AVMEDIA_TYPE_VIDEO,
534 .request_frame = request_frame,
535 .config_props = rgbtest_config_props, },
539 #endif /* CONFIG_RGBTESTSRC_FILTER */