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vsrc_testsrc.c
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1 /*
2  * Copyright (c) 2007 Nicolas George <nicolas.george@normalesup.org>
3  * Copyright (c) 2011 Stefano Sabatini
4  * Copyright (c) 2012 Paul B Mahol
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * Misc test sources.
26  *
27  * testsrc is based on the test pattern generator demuxer by Nicolas George:
28  * http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2007-October/037845.html
29  *
30  * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
31  * Michael Niedermayer.
32  *
33  * smptebars and smptehdbars are by Paul B Mahol.
34  */
35 
36 #include <float.h>
37 
38 #include "libavutil/avassert.h"
39 #include "libavutil/common.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/imgutils.h"
42 #include "libavutil/intreadwrite.h"
43 #include "libavutil/parseutils.h"
44 #include "avfilter.h"
45 #include "drawutils.h"
46 #include "formats.h"
47 #include "internal.h"
48 #include "video.h"
49 
50 typedef struct {
51  const AVClass *class;
52  int w, h;
53  unsigned int nb_frame;
54  AVRational time_base, frame_rate;
55  int64_t pts;
56  int64_t duration; ///< duration expressed in microseconds
57  AVRational sar; ///< sample aspect ratio
58  int draw_once; ///< draw only the first frame, always put out the same picture
59  int draw_once_reset; ///< draw only the first frame or in case of reset
60  AVFrame *picref; ///< cached reference containing the painted picture
61 
62  void (* fill_picture_fn)(AVFilterContext *ctx, AVFrame *frame);
63 
64  /* only used by testsrc */
65  int nb_decimals;
66 
67  /* only used by color */
68  FFDrawContext draw;
69  FFDrawColor color;
70  uint8_t color_rgba[4];
71 
72  /* only used by rgbtest */
73  uint8_t rgba_map[4];
74 
75  /* only used by haldclut */
76  int level;
77 } TestSourceContext;
78 
79 #define OFFSET(x) offsetof(TestSourceContext, x)
80 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
81 
82 #define SIZE_OPTIONS \
83  { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
84  { "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
85 
86 #define COMMON_OPTIONS_NOSIZE \
87  { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
88  { "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
89  { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
90  { "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
91  { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX, FLAGS },
92 
93 #define COMMON_OPTIONS SIZE_OPTIONS COMMON_OPTIONS_NOSIZE
94 
95 static const AVOption options[] = {
96  COMMON_OPTIONS
97  { NULL }
98 };
99 
100 static av_cold int init(AVFilterContext *ctx)
101 {
102  TestSourceContext *test = ctx->priv;
103 
104  test->time_base = av_inv_q(test->frame_rate);
105  test->nb_frame = 0;
106  test->pts = 0;
107 
108  av_log(ctx, AV_LOG_VERBOSE, "size:%dx%d rate:%d/%d duration:%f sar:%d/%d\n",
109  test->w, test->h, test->frame_rate.num, test->frame_rate.den,
110  test->duration < 0 ? -1 : (double)test->duration/1000000,
111  test->sar.num, test->sar.den);
112  return 0;
113 }
114 
115 static av_cold void uninit(AVFilterContext *ctx)
116 {
117  TestSourceContext *test = ctx->priv;
118 
119  av_frame_free(&test->picref);
120 }
121 
122 static int config_props(AVFilterLink *outlink)
123 {
124  TestSourceContext *test = outlink->src->priv;
125 
126  outlink->w = test->w;
127  outlink->h = test->h;
128  outlink->sample_aspect_ratio = test->sar;
129  outlink->frame_rate = test->frame_rate;
130  outlink->time_base = test->time_base;
131 
132  return 0;
133 }
134 
135 static int request_frame(AVFilterLink *outlink)
136 {
137  TestSourceContext *test = outlink->src->priv;
138  AVFrame *frame;
139 
140  if (test->duration >= 0 &&
141  av_rescale_q(test->pts, test->time_base, AV_TIME_BASE_Q) >= test->duration)
142  return AVERROR_EOF;
143 
144  if (test->draw_once) {
145  if (test->draw_once_reset) {
146  av_frame_free(&test->picref);
147  test->draw_once_reset = 0;
148  }
149  if (!test->picref) {
150  test->picref =
151  ff_get_video_buffer(outlink, test->w, test->h);
152  if (!test->picref)
153  return AVERROR(ENOMEM);
154  test->fill_picture_fn(outlink->src, test->picref);
155  }
156  frame = av_frame_clone(test->picref);
157  } else
158  frame = ff_get_video_buffer(outlink, test->w, test->h);
159 
160  if (!frame)
161  return AVERROR(ENOMEM);
162  frame->pts = test->pts;
163  frame->key_frame = 1;
164  frame->interlaced_frame = 0;
165  frame->pict_type = AV_PICTURE_TYPE_I;
166  frame->sample_aspect_ratio = test->sar;
167  if (!test->draw_once)
168  test->fill_picture_fn(outlink->src, frame);
169 
170  test->pts++;
171  test->nb_frame++;
172 
173  return ff_filter_frame(outlink, frame);
174 }
175 
176 #if CONFIG_COLOR_FILTER
177 
178 static const AVOption color_options[] = {
179  { "color", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, CHAR_MIN, CHAR_MAX, FLAGS },
180  { "c", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, CHAR_MIN, CHAR_MAX, FLAGS },
181  COMMON_OPTIONS
182  { NULL }
183 };
184 
185 AVFILTER_DEFINE_CLASS(color);
186 
187 static void color_fill_picture(AVFilterContext *ctx, AVFrame *picref)
188 {
189  TestSourceContext *test = ctx->priv;
190  ff_fill_rectangle(&test->draw, &test->color,
191  picref->data, picref->linesize,
192  0, 0, test->w, test->h);
193 }
194 
195 static av_cold int color_init(AVFilterContext *ctx)
196 {
197  TestSourceContext *test = ctx->priv;
198  test->fill_picture_fn = color_fill_picture;
199  test->draw_once = 1;
200  return init(ctx);
201 }
202 
203 static int color_query_formats(AVFilterContext *ctx)
204 {
205  ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
206  return 0;
207 }
208 
209 static int color_config_props(AVFilterLink *inlink)
210 {
211  AVFilterContext *ctx = inlink->src;
212  TestSourceContext *test = ctx->priv;
213  int ret;
214 
215  ff_draw_init(&test->draw, inlink->format, 0);
216  ff_draw_color(&test->draw, &test->color, test->color_rgba);
217 
218  test->w = ff_draw_round_to_sub(&test->draw, 0, -1, test->w);
219  test->h = ff_draw_round_to_sub(&test->draw, 1, -1, test->h);
220  if (av_image_check_size(test->w, test->h, 0, ctx) < 0)
221  return AVERROR(EINVAL);
222 
223  if ((ret = config_props(inlink)) < 0)
224  return ret;
225 
226  return 0;
227 }
228 
229 static int color_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
230  char *res, int res_len, int flags)
231 {
232  TestSourceContext *test = ctx->priv;
233  int ret;
234 
235  if (!strcmp(cmd, "color") || !strcmp(cmd, "c")) {
236  uint8_t color_rgba[4];
237 
238  ret = av_parse_color(color_rgba, args, -1, ctx);
239  if (ret < 0)
240  return ret;
241 
242  memcpy(test->color_rgba, color_rgba, sizeof(color_rgba));
243  ff_draw_color(&test->draw, &test->color, test->color_rgba);
244  test->draw_once_reset = 1;
245  return 0;
246  }
247 
248  return AVERROR(ENOSYS);
249 }
250 
251 static const AVFilterPad color_outputs[] = {
252  {
253  .name = "default",
254  .type = AVMEDIA_TYPE_VIDEO,
255  .request_frame = request_frame,
256  .config_props = color_config_props,
257  },
258  { NULL }
259 };
260 
261 AVFilter avfilter_vsrc_color = {
262  .name = "color",
263  .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
264 
265  .priv_class = &color_class,
266  .priv_size = sizeof(TestSourceContext),
267  .init = color_init,
268  .uninit = uninit,
269 
270  .query_formats = color_query_formats,
271  .inputs = NULL,
272  .outputs = color_outputs,
273  .process_command = color_process_command,
274 };
275 
276 #endif /* CONFIG_COLOR_FILTER */
277 
278 #if CONFIG_HALDCLUTSRC_FILTER
279 
280 static const AVOption haldclutsrc_options[] = {
281  { "level", "set level", OFFSET(level), AV_OPT_TYPE_INT, {.i64 = 6}, 2, 8, FLAGS },
282  COMMON_OPTIONS_NOSIZE
283  { NULL }
284 };
285 
286 AVFILTER_DEFINE_CLASS(haldclutsrc);
287 
288 static void haldclutsrc_fill_picture(AVFilterContext *ctx, AVFrame *frame)
289 {
290  int i, j, k, x = 0, y = 0, is16bit = 0, step;
291  uint32_t alpha = 0;
292  const TestSourceContext *hc = ctx->priv;
293  int level = hc->level;
294  float scale;
295  const int w = frame->width;
296  const int h = frame->height;
297  const uint8_t *data = frame->data[0];
298  const int linesize = frame->linesize[0];
299  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
300  uint8_t rgba_map[4];
301 
302  av_assert0(w == h && w == level*level*level);
303 
304  ff_fill_rgba_map(rgba_map, frame->format);
305 
306  switch (frame->format) {
307  case AV_PIX_FMT_RGB48:
308  case AV_PIX_FMT_BGR48:
309  case AV_PIX_FMT_RGBA64:
310  case AV_PIX_FMT_BGRA64:
311  is16bit = 1;
312  alpha = 0xffff;
313  break;
314  case AV_PIX_FMT_RGBA:
315  case AV_PIX_FMT_BGRA:
316  case AV_PIX_FMT_ARGB:
317  case AV_PIX_FMT_ABGR:
318  alpha = 0xff;
319  break;
320  }
321 
322  step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
323  scale = ((float)(1 << (8*(is16bit+1))) - 1) / (level*level - 1);
324 
325 #define LOAD_CLUT(nbits) do { \
326  uint##nbits##_t *dst = ((uint##nbits##_t *)(data + y*linesize)) + x*step; \
327  dst[rgba_map[0]] = av_clip_uint##nbits(i * scale); \
328  dst[rgba_map[1]] = av_clip_uint##nbits(j * scale); \
329  dst[rgba_map[2]] = av_clip_uint##nbits(k * scale); \
330  if (step == 4) \
331  dst[rgba_map[3]] = alpha; \
332 } while (0)
333 
334  level *= level;
335  for (k = 0; k < level; k++) {
336  for (j = 0; j < level; j++) {
337  for (i = 0; i < level; i++) {
338  if (!is16bit)
339  LOAD_CLUT(8);
340  else
341  LOAD_CLUT(16);
342  if (++x == w) {
343  x = 0;
344  y++;
345  }
346  }
347  }
348  }
349 }
350 
351 static av_cold int haldclutsrc_init(AVFilterContext *ctx)
352 {
353  TestSourceContext *hc = ctx->priv;
354  hc->fill_picture_fn = haldclutsrc_fill_picture;
355  hc->draw_once = 1;
356  return init(ctx);
357 }
358 
359 static int haldclutsrc_query_formats(AVFilterContext *ctx)
360 {
361  static const enum AVPixelFormat pix_fmts[] = {
362  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
363  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
364  AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
365  AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
366  AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
367  AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
368  AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
369  AV_PIX_FMT_NONE,
370  };
371  ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
372  return 0;
373 }
374 
375 static int haldclutsrc_config_props(AVFilterLink *outlink)
376 {
377  AVFilterContext *ctx = outlink->src;
378  TestSourceContext *hc = ctx->priv;
379 
380  hc->w = hc->h = hc->level * hc->level * hc->level;
381  return config_props(outlink);
382 }
383 
384 static const AVFilterPad haldclutsrc_outputs[] = {
385  {
386  .name = "default",
387  .type = AVMEDIA_TYPE_VIDEO,
388  .request_frame = request_frame,
389  .config_props = haldclutsrc_config_props,
390  },
391  { NULL }
392 };
393 
394 AVFilter avfilter_vsrc_haldclutsrc = {
395  .name = "haldclutsrc",
396  .description = NULL_IF_CONFIG_SMALL("Provide an identity Hald CLUT."),
397  .priv_class = &haldclutsrc_class,
398  .priv_size = sizeof(TestSourceContext),
399  .init = haldclutsrc_init,
400  .uninit = uninit,
401  .query_formats = haldclutsrc_query_formats,
402  .inputs = NULL,
403  .outputs = haldclutsrc_outputs,
404 };
405 #endif /* CONFIG_HALDCLUTSRC_FILTER */
406 
407 #if CONFIG_NULLSRC_FILTER
408 
409 #define nullsrc_options options
410 AVFILTER_DEFINE_CLASS(nullsrc);
411 
412 static void nullsrc_fill_picture(AVFilterContext *ctx, AVFrame *picref) { }
413 
414 static av_cold int nullsrc_init(AVFilterContext *ctx)
415 {
416  TestSourceContext *test = ctx->priv;
417 
418  test->fill_picture_fn = nullsrc_fill_picture;
419  return init(ctx);
420 }
421 
422 static const AVFilterPad nullsrc_outputs[] = {
423  {
424  .name = "default",
425  .type = AVMEDIA_TYPE_VIDEO,
426  .request_frame = request_frame,
427  .config_props = config_props,
428  },
429  { NULL },
430 };
431 
432 AVFilter avfilter_vsrc_nullsrc = {
433  .name = "nullsrc",
434  .description = NULL_IF_CONFIG_SMALL("Null video source, return unprocessed video frames."),
435  .init = nullsrc_init,
436  .uninit = uninit,
437  .priv_size = sizeof(TestSourceContext),
438  .priv_class = &nullsrc_class,
439  .inputs = NULL,
440  .outputs = nullsrc_outputs,
441 };
442 
443 #endif /* CONFIG_NULLSRC_FILTER */
444 
445 #if CONFIG_TESTSRC_FILTER
446 
447 static const AVOption testsrc_options[] = {
448  COMMON_OPTIONS
449  { "decimals", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, 0, 17, FLAGS },
450  { "n", "set number of decimals to show", OFFSET(nb_decimals), AV_OPT_TYPE_INT, {.i64=0}, 0, 17, FLAGS },
451  { NULL }
452 };
453 
454 AVFILTER_DEFINE_CLASS(testsrc);
455 
456 /**
457  * Fill a rectangle with value val.
458  *
459  * @param val the RGB value to set
460  * @param dst pointer to the destination buffer to fill
461  * @param dst_linesize linesize of destination
462  * @param segment_width width of the segment
463  * @param x horizontal coordinate where to draw the rectangle in the destination buffer
464  * @param y horizontal coordinate where to draw the rectangle in the destination buffer
465  * @param w width of the rectangle to draw, expressed as a number of segment_width units
466  * @param h height of the rectangle to draw, expressed as a number of segment_width units
467  */
468 static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, int segment_width,
469  int x, int y, int w, int h)
470 {
471  int i;
472  int step = 3;
473 
474  dst += segment_width * (step * x + y * dst_linesize);
475  w *= segment_width * step;
476  h *= segment_width;
477  for (i = 0; i < h; i++) {
478  memset(dst, val, w);
479  dst += dst_linesize;
480  }
481 }
482 
483 static void draw_digit(int digit, uint8_t *dst, int dst_linesize,
484  int segment_width)
485 {
486 #define TOP_HBAR 1
487 #define MID_HBAR 2
488 #define BOT_HBAR 4
489 #define LEFT_TOP_VBAR 8
490 #define LEFT_BOT_VBAR 16
491 #define RIGHT_TOP_VBAR 32
492 #define RIGHT_BOT_VBAR 64
493  struct {
494  int x, y, w, h;
495  } segments[] = {
496  { 1, 0, 5, 1 }, /* TOP_HBAR */
497  { 1, 6, 5, 1 }, /* MID_HBAR */
498  { 1, 12, 5, 1 }, /* BOT_HBAR */
499  { 0, 1, 1, 5 }, /* LEFT_TOP_VBAR */
500  { 0, 7, 1, 5 }, /* LEFT_BOT_VBAR */
501  { 6, 1, 1, 5 }, /* RIGHT_TOP_VBAR */
502  { 6, 7, 1, 5 } /* RIGHT_BOT_VBAR */
503  };
504  static const unsigned char masks[10] = {
505  /* 0 */ TOP_HBAR |BOT_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
506  /* 1 */ RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
507  /* 2 */ TOP_HBAR|MID_HBAR|BOT_HBAR|LEFT_BOT_VBAR |RIGHT_TOP_VBAR,
508  /* 3 */ TOP_HBAR|MID_HBAR|BOT_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
509  /* 4 */ MID_HBAR |LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
510  /* 5 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_BOT_VBAR,
511  /* 6 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR |RIGHT_BOT_VBAR,
512  /* 7 */ TOP_HBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
513  /* 8 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR|LEFT_BOT_VBAR|RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
514  /* 9 */ TOP_HBAR|BOT_HBAR|MID_HBAR|LEFT_TOP_VBAR |RIGHT_TOP_VBAR|RIGHT_BOT_VBAR,
515  };
516  unsigned mask = masks[digit];
517  int i;
518 
519  draw_rectangle(0, dst, dst_linesize, segment_width, 0, 0, 8, 13);
520  for (i = 0; i < FF_ARRAY_ELEMS(segments); i++)
521  if (mask & (1<<i))
522  draw_rectangle(255, dst, dst_linesize, segment_width,
523  segments[i].x, segments[i].y, segments[i].w, segments[i].h);
524 }
525 
526 #define GRADIENT_SIZE (6 * 256)
527 
528 static void test_fill_picture(AVFilterContext *ctx, AVFrame *frame)
529 {
530  TestSourceContext *test = ctx->priv;
531  uint8_t *p, *p0;
532  int x, y;
533  int color, color_rest;
534  int icolor;
535  int radius;
536  int quad0, quad;
537  int dquad_x, dquad_y;
538  int grad, dgrad, rgrad, drgrad;
539  int seg_size;
540  int second;
541  int i;
542  uint8_t *data = frame->data[0];
543  int width = frame->width;
544  int height = frame->height;
545 
546  /* draw colored bars and circle */
547  radius = (width + height) / 4;
548  quad0 = width * width / 4 + height * height / 4 - radius * radius;
549  dquad_y = 1 - height;
550  p0 = data;
551  for (y = 0; y < height; y++) {
552  p = p0;
553  color = 0;
554  color_rest = 0;
555  quad = quad0;
556  dquad_x = 1 - width;
557  for (x = 0; x < width; x++) {
558  icolor = color;
559  if (quad < 0)
560  icolor ^= 7;
561  quad += dquad_x;
562  dquad_x += 2;
563  *(p++) = icolor & 1 ? 255 : 0;
564  *(p++) = icolor & 2 ? 255 : 0;
565  *(p++) = icolor & 4 ? 255 : 0;
566  color_rest += 8;
567  if (color_rest >= width) {
568  color_rest -= width;
569  color++;
570  }
571  }
572  quad0 += dquad_y;
573  dquad_y += 2;
574  p0 += frame->linesize[0];
575  }
576 
577  /* draw sliding color line */
578  p0 = p = data + frame->linesize[0] * (height * 3/4);
579  grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
580  GRADIENT_SIZE;
581  rgrad = 0;
582  dgrad = GRADIENT_SIZE / width;
583  drgrad = GRADIENT_SIZE % width;
584  for (x = 0; x < width; x++) {
585  *(p++) =
586  grad < 256 || grad >= 5 * 256 ? 255 :
587  grad >= 2 * 256 && grad < 4 * 256 ? 0 :
588  grad < 2 * 256 ? 2 * 256 - 1 - grad : grad - 4 * 256;
589  *(p++) =
590  grad >= 4 * 256 ? 0 :
591  grad >= 1 * 256 && grad < 3 * 256 ? 255 :
592  grad < 1 * 256 ? grad : 4 * 256 - 1 - grad;
593  *(p++) =
594  grad < 2 * 256 ? 0 :
595  grad >= 3 * 256 && grad < 5 * 256 ? 255 :
596  grad < 3 * 256 ? grad - 2 * 256 : 6 * 256 - 1 - grad;
597  grad += dgrad;
598  rgrad += drgrad;
599  if (rgrad >= GRADIENT_SIZE) {
600  grad++;
601  rgrad -= GRADIENT_SIZE;
602  }
603  if (grad >= GRADIENT_SIZE)
604  grad -= GRADIENT_SIZE;
605  }
606  p = p0;
607  for (y = height / 8; y > 0; y--) {
608  memcpy(p+frame->linesize[0], p, 3 * width);
609  p += frame->linesize[0];
610  }
611 
612  /* draw digits */
613  seg_size = width / 80;
614  if (seg_size >= 1 && height >= 13 * seg_size) {
615  int64_t p10decimals = 1;
616  double time = av_q2d(test->time_base) * test->nb_frame *
617  pow(10, test->nb_decimals);
618  if (time >= INT_MAX)
619  return;
620 
621  for (x = 0; x < test->nb_decimals; x++)
622  p10decimals *= 10;
623 
624  second = av_rescale_rnd(test->nb_frame * test->time_base.num, p10decimals, test->time_base.den, AV_ROUND_ZERO);
625  x = width - (width - seg_size * 64) / 2;
626  y = (height - seg_size * 13) / 2;
627  p = data + (x*3 + y * frame->linesize[0]);
628  for (i = 0; i < 8; i++) {
629  p -= 3 * 8 * seg_size;
630  draw_digit(second % 10, p, frame->linesize[0], seg_size);
631  second /= 10;
632  if (second == 0)
633  break;
634  }
635  }
636 }
637 
638 static av_cold int test_init(AVFilterContext *ctx)
639 {
640  TestSourceContext *test = ctx->priv;
641 
642  test->fill_picture_fn = test_fill_picture;
643  return init(ctx);
644 }
645 
646 static int test_query_formats(AVFilterContext *ctx)
647 {
648  static const enum AVPixelFormat pix_fmts[] = {
649  AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
650  };
651  ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
652  return 0;
653 }
654 
655 static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
656  {
657  .name = "default",
658  .type = AVMEDIA_TYPE_VIDEO,
659  .request_frame = request_frame,
660  .config_props = config_props,
661  },
662  { NULL }
663 };
664 
665 AVFilter avfilter_vsrc_testsrc = {
666  .name = "testsrc",
667  .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
668  .priv_size = sizeof(TestSourceContext),
669  .priv_class = &testsrc_class,
670  .init = test_init,
671  .uninit = uninit,
672 
673  .query_formats = test_query_formats,
674 
675  .inputs = NULL,
676  .outputs = avfilter_vsrc_testsrc_outputs,
677 };
678 
679 #endif /* CONFIG_TESTSRC_FILTER */
680 
681 #if CONFIG_RGBTESTSRC_FILTER
682 
683 #define rgbtestsrc_options options
684 AVFILTER_DEFINE_CLASS(rgbtestsrc);
685 
686 #define R 0
687 #define G 1
688 #define B 2
689 #define A 3
690 
691 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
692  int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
693  uint8_t rgba_map[4])
694 {
695  int32_t v;
696  uint8_t *p;
697 
698  switch (fmt) {
699  case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
700  case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
701  case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
702  case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
703  case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
704  case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
705  case AV_PIX_FMT_RGB24:
706  case AV_PIX_FMT_BGR24:
707  v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
708  p = dst + 3*x + y*dst_linesize;
709  AV_WL24(p, v);
710  break;
711  case AV_PIX_FMT_RGBA:
712  case AV_PIX_FMT_BGRA:
713  case AV_PIX_FMT_ARGB:
714  case AV_PIX_FMT_ABGR:
715  v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
716  p = dst + 4*x + y*dst_linesize;
717  AV_WL32(p, v);
718  break;
719  }
720 }
721 
722 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFrame *frame)
723 {
724  TestSourceContext *test = ctx->priv;
725  int x, y, w = frame->width, h = frame->height;
726 
727  for (y = 0; y < h; y++) {
728  for (x = 0; x < w; x++) {
729  int c = 256*x/w;
730  int r = 0, g = 0, b = 0;
731 
732  if (3*y < h ) r = c;
733  else if (3*y < 2*h) g = c;
734  else b = c;
735 
736  rgbtest_put_pixel(frame->data[0], frame->linesize[0], x, y, r, g, b,
737  ctx->outputs[0]->format, test->rgba_map);
738  }
739  }
740 }
741 
742 static av_cold int rgbtest_init(AVFilterContext *ctx)
743 {
744  TestSourceContext *test = ctx->priv;
745 
746  test->draw_once = 1;
747  test->fill_picture_fn = rgbtest_fill_picture;
748  return init(ctx);
749 }
750 
751 static int rgbtest_query_formats(AVFilterContext *ctx)
752 {
753  static const enum AVPixelFormat pix_fmts[] = {
754  AV_PIX_FMT_RGBA, AV_PIX_FMT_ARGB, AV_PIX_FMT_BGRA, AV_PIX_FMT_ABGR,
755  AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB24,
756  AV_PIX_FMT_RGB444, AV_PIX_FMT_BGR444,
757  AV_PIX_FMT_RGB565, AV_PIX_FMT_BGR565,
758  AV_PIX_FMT_RGB555, AV_PIX_FMT_BGR555,
759  AV_PIX_FMT_NONE
760  };
761  ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
762  return 0;
763 }
764 
765 static int rgbtest_config_props(AVFilterLink *outlink)
766 {
767  TestSourceContext *test = outlink->src->priv;
768 
769  ff_fill_rgba_map(test->rgba_map, outlink->format);
770  return config_props(outlink);
771 }
772 
773 static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
774  {
775  .name = "default",
776  .type = AVMEDIA_TYPE_VIDEO,
777  .request_frame = request_frame,
778  .config_props = rgbtest_config_props,
779  },
780  { NULL }
781 };
782 
783 AVFilter avfilter_vsrc_rgbtestsrc = {
784  .name = "rgbtestsrc",
785  .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
786  .priv_size = sizeof(TestSourceContext),
787  .priv_class = &rgbtestsrc_class,
788  .init = rgbtest_init,
789  .uninit = uninit,
790 
791  .query_formats = rgbtest_query_formats,
792 
793  .inputs = NULL,
794 
795  .outputs = avfilter_vsrc_rgbtestsrc_outputs,
796 };
797 
798 #endif /* CONFIG_RGBTESTSRC_FILTER */
799 
800 #if CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER
801 
802 static const uint8_t rainbow[7][4] = {
803  { 191, 191, 191, 255 }, /* gray */
804  { 191, 191, 0, 255 }, /* yellow */
805  { 0, 191, 191, 255 }, /* cyan */
806  { 0, 191, 0, 255 }, /* green */
807  { 191, 0, 191, 255 }, /* magenta */
808  { 191, 0, 0, 255 }, /* red */
809  { 0, 0, 191, 255 }, /* blue */
810 };
811 
812 static const uint8_t wobnair[7][4] = {
813  { 0, 0, 191, 255 }, /* blue */
814  { 19, 19, 19, 255 }, /* 7.5% intensity black */
815  { 191, 0, 191, 255 }, /* magenta */
816  { 19, 19, 19, 255 }, /* 7.5% intensity black */
817  { 0, 191, 191, 255 }, /* cyan */
818  { 19, 19, 19, 255 }, /* 7.5% intensity black */
819  { 191, 191, 191, 255 }, /* gray */
820 };
821 
822 static const uint8_t white[4] = { 255, 255, 255, 255 };
823 static const uint8_t black[4] = { 19, 19, 19, 255 }; /* 7.5% intensity black */
824 
825 /* pluge pulses */
826 static const uint8_t neg4ire[4] = { 9, 9, 9, 255 }; /* 3.5% intensity black */
827 static const uint8_t pos4ire[4] = { 29, 29, 29, 255 }; /* 11.5% intensity black */
828 
829 /* fudged Q/-I */
830 static const uint8_t i_pixel[4] = { 0, 68, 130, 255 };
831 static const uint8_t q_pixel[4] = { 67, 0, 130, 255 };
832 
833 static const uint8_t gray40[4] = { 102, 102, 102, 255 };
834 static const uint8_t gray15[4] = { 38, 38, 38, 255 };
835 static const uint8_t cyan[4] = { 0, 255, 255, 255 };
836 static const uint8_t yellow[4] = { 255, 255, 0, 255 };
837 static const uint8_t blue[4] = { 0, 0, 255, 255 };
838 static const uint8_t red[4] = { 255, 0, 0, 255 };
839 static const uint8_t black0[4] = { 5, 5, 5, 255 };
840 static const uint8_t black2[4] = { 10, 10, 10, 255 };
841 static const uint8_t black4[4] = { 15, 15, 15, 255 };
842 static const uint8_t neg2[4] = { 0, 0, 0, 255 };
843 
844 static void inline draw_bar(TestSourceContext *test, const uint8_t *color,
845  unsigned x, unsigned y, unsigned w, unsigned h,
846  AVFrame *frame)
847 {
848  FFDrawColor draw_color;
849 
850  x = FFMIN(x, test->w - 1);
851  y = FFMIN(y, test->h - 1);
852  w = FFMIN(w, test->w - x);
853  h = FFMIN(h, test->h - y);
854 
855  av_assert0(x + w <= test->w);
856  av_assert0(y + h <= test->h);
857 
858  ff_draw_color(&test->draw, &draw_color, color);
859  ff_fill_rectangle(&test->draw, &draw_color,
860  frame->data, frame->linesize, x, y, w, h);
861 }
862 
863 static int smptebars_query_formats(AVFilterContext *ctx)
864 {
865  ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
866  return 0;
867 }
868 
869 static int smptebars_config_props(AVFilterLink *outlink)
870 {
871  AVFilterContext *ctx = outlink->src;
872  TestSourceContext *test = ctx->priv;
873 
874  ff_draw_init(&test->draw, outlink->format, 0);
875 
876  return config_props(outlink);
877 }
878 
879 static const AVFilterPad smptebars_outputs[] = {
880  {
881  .name = "default",
882  .type = AVMEDIA_TYPE_VIDEO,
883  .request_frame = request_frame,
884  .config_props = smptebars_config_props,
885  },
886  { NULL }
887 };
888 
889 #if CONFIG_SMPTEBARS_FILTER
890 
891 #define smptebars_options options
892 AVFILTER_DEFINE_CLASS(smptebars);
893 
894 static void smptebars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
895 {
896  TestSourceContext *test = ctx->priv;
897  int r_w, r_h, w_h, p_w, p_h, i, tmp, x = 0;
898  const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
899 
900  r_w = FFALIGN((test->w + 6) / 7, 1 << pixdesc->log2_chroma_w);
901  r_h = FFALIGN(test->h * 2 / 3, 1 << pixdesc->log2_chroma_h);
902  w_h = FFALIGN(test->h * 3 / 4 - r_h, 1 << pixdesc->log2_chroma_h);
903  p_w = FFALIGN(r_w * 5 / 4, 1 << pixdesc->log2_chroma_w);
904  p_h = test->h - w_h - r_h;
905 
906  for (i = 0; i < 7; i++) {
907  draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
908  draw_bar(test, wobnair[i], x, r_h, r_w, w_h, picref);
909  x += r_w;
910  }
911  x = 0;
912  draw_bar(test, i_pixel, x, r_h + w_h, p_w, p_h, picref);
913  x += p_w;
914  draw_bar(test, white, x, r_h + w_h, p_w, p_h, picref);
915  x += p_w;
916  draw_bar(test, q_pixel, x, r_h + w_h, p_w, p_h, picref);
917  x += p_w;
918  tmp = FFALIGN(5 * r_w - x, 1 << pixdesc->log2_chroma_w);
919  draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
920  x += tmp;
921  tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
922  draw_bar(test, neg4ire, x, r_h + w_h, tmp, p_h, picref);
923  x += tmp;
924  draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
925  x += tmp;
926  draw_bar(test, pos4ire, x, r_h + w_h, tmp, p_h, picref);
927  x += tmp;
928  draw_bar(test, black, x, r_h + w_h, test->w - x, p_h, picref);
929 }
930 
931 static av_cold int smptebars_init(AVFilterContext *ctx)
932 {
933  TestSourceContext *test = ctx->priv;
934 
935  test->fill_picture_fn = smptebars_fill_picture;
936  test->draw_once = 1;
937  return init(ctx);
938 }
939 
940 AVFilter avfilter_vsrc_smptebars = {
941  .name = "smptebars",
942  .description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
943  .priv_size = sizeof(TestSourceContext),
944  .init = smptebars_init,
945  .uninit = uninit,
946 
947  .query_formats = smptebars_query_formats,
948  .inputs = NULL,
949  .outputs = smptebars_outputs,
950  .priv_class = &smptebars_class,
951 };
952 
953 #endif /* CONFIG_SMPTEBARS_FILTER */
954 
955 #if CONFIG_SMPTEHDBARS_FILTER
956 
957 #define smptehdbars_options options
958 AVFILTER_DEFINE_CLASS(smptehdbars);
959 
960 static void smptehdbars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
961 {
962  TestSourceContext *test = ctx->priv;
963  int d_w, r_w, r_h, l_w, i, tmp, x = 0, y = 0;
964  const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
965 
966  d_w = FFALIGN(test->w / 8, 1 << pixdesc->log2_chroma_w);
967  r_h = FFALIGN(test->h * 7 / 12, 1 << pixdesc->log2_chroma_h);
968  draw_bar(test, gray40, x, 0, d_w, r_h, picref);
969  x += d_w;
970 
971  r_w = FFALIGN((((test->w + 3) / 4) * 3) / 7, 1 << pixdesc->log2_chroma_w);
972  for (i = 0; i < 7; i++) {
973  draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
974  x += r_w;
975  }
976  draw_bar(test, gray40, x, 0, test->w - x, r_h, picref);
977  y = r_h;
978  r_h = FFALIGN(test->h / 12, 1 << pixdesc->log2_chroma_h);
979  draw_bar(test, cyan, 0, y, d_w, r_h, picref);
980  x = d_w;
981  draw_bar(test, i_pixel, x, y, r_w, r_h, picref);
982  x += r_w;
983  tmp = r_w * 6;
984  draw_bar(test, rainbow[0], x, y, tmp, r_h, picref);
985  x += tmp;
986  l_w = x;
987  draw_bar(test, blue, x, y, test->w - x, r_h, picref);
988  y += r_h;
989  draw_bar(test, yellow, 0, y, d_w, r_h, picref);
990  x = d_w;
991  draw_bar(test, q_pixel, x, y, r_w, r_h, picref);
992  x += r_w;
993 
994  for (i = 0; i < tmp; i += 1 << pixdesc->log2_chroma_w) {
995  uint8_t yramp[4] = {0};
996 
997  yramp[0] =
998  yramp[1] =
999  yramp[2] = i * 255 / tmp;
1000  yramp[3] = 255;
1001 
1002  draw_bar(test, yramp, x, y, 1 << pixdesc->log2_chroma_w, r_h, picref);
1003  x += 1 << pixdesc->log2_chroma_w;
1004  }
1005  draw_bar(test, red, x, y, test->w - x, r_h, picref);
1006  y += r_h;
1007  draw_bar(test, gray15, 0, y, d_w, test->h - y, picref);
1008  x = d_w;
1009  tmp = FFALIGN(r_w * 3 / 2, 1 << pixdesc->log2_chroma_w);
1010  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1011  x += tmp;
1012  tmp = FFALIGN(r_w * 2, 1 << pixdesc->log2_chroma_w);
1013  draw_bar(test, white, x, y, tmp, test->h - y, picref);
1014  x += tmp;
1015  tmp = FFALIGN(r_w * 5 / 6, 1 << pixdesc->log2_chroma_w);
1016  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1017  x += tmp;
1018  tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
1019  draw_bar(test, neg2, x, y, tmp, test->h - y, picref);
1020  x += tmp;
1021  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1022  x += tmp;
1023  draw_bar(test, black2, x, y, tmp, test->h - y, picref);
1024  x += tmp;
1025  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1026  x += tmp;
1027  draw_bar(test, black4, x, y, tmp, test->h - y, picref);
1028  x += tmp;
1029  r_w = l_w - x;
1030  draw_bar(test, black0, x, y, r_w, test->h - y, picref);
1031  x += r_w;
1032  draw_bar(test, gray15, x, y, test->w - x, test->h - y, picref);
1033 }
1034 
1035 static av_cold int smptehdbars_init(AVFilterContext *ctx)
1036 {
1037  TestSourceContext *test = ctx->priv;
1038 
1039  test->fill_picture_fn = smptehdbars_fill_picture;
1040  test->draw_once = 1;
1041  return init(ctx);
1042 }
1043 
1044 AVFilter avfilter_vsrc_smptehdbars = {
1045  .name = "smptehdbars",
1046  .description = NULL_IF_CONFIG_SMALL("Generate SMPTE HD color bars."),
1047  .priv_size = sizeof(TestSourceContext),
1048  .init = smptehdbars_init,
1049  .uninit = uninit,
1050 
1051  .query_formats = smptebars_query_formats,
1052  .inputs = NULL,
1053  .outputs = smptebars_outputs,
1054  .priv_class = &smptehdbars_class,
1055 };
1056 
1057 #endif /* CONFIG_SMPTEHDBARS_FILTER */
1058 #endif /* CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER */
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