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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 TestSourceContext {
51  const AVClass *class;
52  int w, h;
53  unsigned int nb_frame;
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 
63 
64  /* only used by testsrc */
66 
67  /* only used by color */
71 
72  /* only used by rgbtest */
74 
75  /* only used by haldclut */
76  int level;
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[] = {
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 },
182  { NULL }
183 };
184 
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 {
206 }
207 
208 static int color_config_props(AVFilterLink *inlink)
209 {
210  AVFilterContext *ctx = inlink->src;
211  TestSourceContext *test = ctx->priv;
212  int ret;
213 
214  ff_draw_init(&test->draw, inlink->format, 0);
215  ff_draw_color(&test->draw, &test->color, test->color_rgba);
216 
217  test->w = ff_draw_round_to_sub(&test->draw, 0, -1, test->w);
218  test->h = ff_draw_round_to_sub(&test->draw, 1, -1, test->h);
219  if (av_image_check_size(test->w, test->h, 0, ctx) < 0)
220  return AVERROR(EINVAL);
221 
222  if ((ret = config_props(inlink)) < 0)
223  return ret;
224 
225  return 0;
226 }
227 
228 static int color_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
229  char *res, int res_len, int flags)
230 {
231  TestSourceContext *test = ctx->priv;
232  int ret;
233 
234  if (!strcmp(cmd, "color") || !strcmp(cmd, "c")) {
235  uint8_t color_rgba[4];
236 
237  ret = av_parse_color(color_rgba, args, -1, ctx);
238  if (ret < 0)
239  return ret;
240 
241  memcpy(test->color_rgba, color_rgba, sizeof(color_rgba));
242  ff_draw_color(&test->draw, &test->color, test->color_rgba);
243  test->draw_once_reset = 1;
244  return 0;
245  }
246 
247  return AVERROR(ENOSYS);
248 }
249 
250 static const AVFilterPad color_outputs[] = {
251  {
252  .name = "default",
253  .type = AVMEDIA_TYPE_VIDEO,
254  .request_frame = request_frame,
255  .config_props = color_config_props,
256  },
257  { NULL }
258 };
259 
260 AVFilter ff_vsrc_color = {
261  .name = "color",
262  .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
263  .priv_class = &color_class,
264  .priv_size = sizeof(TestSourceContext),
265  .init = color_init,
266  .uninit = uninit,
267  .query_formats = color_query_formats,
268  .inputs = NULL,
269  .outputs = color_outputs,
270  .process_command = color_process_command,
271 };
272 
273 #endif /* CONFIG_COLOR_FILTER */
274 
275 #if CONFIG_HALDCLUTSRC_FILTER
276 
277 static const AVOption haldclutsrc_options[] = {
278  { "level", "set level", OFFSET(level), AV_OPT_TYPE_INT, {.i64 = 6}, 2, 8, FLAGS },
280  { NULL }
281 };
282 
283 AVFILTER_DEFINE_CLASS(haldclutsrc);
284 
285 static void haldclutsrc_fill_picture(AVFilterContext *ctx, AVFrame *frame)
286 {
287  int i, j, k, x = 0, y = 0, is16bit = 0, step;
288  uint32_t alpha = 0;
289  const TestSourceContext *hc = ctx->priv;
290  int level = hc->level;
291  float scale;
292  const int w = frame->width;
293  const int h = frame->height;
294  const uint8_t *data = frame->data[0];
295  const int linesize = frame->linesize[0];
296  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
297  uint8_t rgba_map[4];
298 
299  av_assert0(w == h && w == level*level*level);
300 
301  ff_fill_rgba_map(rgba_map, frame->format);
302 
303  switch (frame->format) {
304  case AV_PIX_FMT_RGB48:
305  case AV_PIX_FMT_BGR48:
306  case AV_PIX_FMT_RGBA64:
307  case AV_PIX_FMT_BGRA64:
308  is16bit = 1;
309  alpha = 0xffff;
310  break;
311  case AV_PIX_FMT_RGBA:
312  case AV_PIX_FMT_BGRA:
313  case AV_PIX_FMT_ARGB:
314  case AV_PIX_FMT_ABGR:
315  alpha = 0xff;
316  break;
317  }
318 
319  step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
320  scale = ((float)(1 << (8*(is16bit+1))) - 1) / (level*level - 1);
321 
322 #define LOAD_CLUT(nbits) do { \
323  uint##nbits##_t *dst = ((uint##nbits##_t *)(data + y*linesize)) + x*step; \
324  dst[rgba_map[0]] = av_clip_uint##nbits(i * scale); \
325  dst[rgba_map[1]] = av_clip_uint##nbits(j * scale); \
326  dst[rgba_map[2]] = av_clip_uint##nbits(k * scale); \
327  if (step == 4) \
328  dst[rgba_map[3]] = alpha; \
329 } while (0)
330 
331  level *= level;
332  for (k = 0; k < level; k++) {
333  for (j = 0; j < level; j++) {
334  for (i = 0; i < level; i++) {
335  if (!is16bit)
336  LOAD_CLUT(8);
337  else
338  LOAD_CLUT(16);
339  if (++x == w) {
340  x = 0;
341  y++;
342  }
343  }
344  }
345  }
346 }
347 
348 static av_cold int haldclutsrc_init(AVFilterContext *ctx)
349 {
350  TestSourceContext *hc = ctx->priv;
351  hc->fill_picture_fn = haldclutsrc_fill_picture;
352  hc->draw_once = 1;
353  return init(ctx);
354 }
355 
356 static int haldclutsrc_query_formats(AVFilterContext *ctx)
357 {
358  static const enum AVPixelFormat pix_fmts[] = {
367  };
368 
369  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
370  if (!fmts_list)
371  return AVERROR(ENOMEM);
372  return ff_set_common_formats(ctx, fmts_list);
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 ff_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 ff_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[] = {
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 segments {
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[] = {
650  };
651 
652  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
653  if (!fmts_list)
654  return AVERROR(ENOMEM);
655  return ff_set_common_formats(ctx, fmts_list);
656 }
657 
658 static const AVFilterPad avfilter_vsrc_testsrc_outputs[] = {
659  {
660  .name = "default",
661  .type = AVMEDIA_TYPE_VIDEO,
662  .request_frame = request_frame,
663  .config_props = config_props,
664  },
665  { NULL }
666 };
667 
668 AVFilter ff_vsrc_testsrc = {
669  .name = "testsrc",
670  .description = NULL_IF_CONFIG_SMALL("Generate test pattern."),
671  .priv_size = sizeof(TestSourceContext),
672  .priv_class = &testsrc_class,
673  .init = test_init,
674  .uninit = uninit,
675  .query_formats = test_query_formats,
676  .inputs = NULL,
677  .outputs = avfilter_vsrc_testsrc_outputs,
678 };
679 
680 #endif /* CONFIG_TESTSRC_FILTER */
681 
682 #if CONFIG_RGBTESTSRC_FILTER
683 
684 #define rgbtestsrc_options options
685 AVFILTER_DEFINE_CLASS(rgbtestsrc);
686 
687 #define R 0
688 #define G 1
689 #define B 2
690 #define A 3
691 
692 static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
693  int x, int y, int r, int g, int b, enum AVPixelFormat fmt,
694  uint8_t rgba_map[4])
695 {
696  int32_t v;
697  uint8_t *p;
698 
699  switch (fmt) {
700  case AV_PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
701  case AV_PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
702  case AV_PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
703  case AV_PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
704  case AV_PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
705  case AV_PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
706  case AV_PIX_FMT_RGB24:
707  case AV_PIX_FMT_BGR24:
708  v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
709  p = dst + 3*x + y*dst_linesize;
710  AV_WL24(p, v);
711  break;
712  case AV_PIX_FMT_RGBA:
713  case AV_PIX_FMT_BGRA:
714  case AV_PIX_FMT_ARGB:
715  case AV_PIX_FMT_ABGR:
716  v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)) + (255 << (rgba_map[A]*8));
717  p = dst + 4*x + y*dst_linesize;
718  AV_WL32(p, v);
719  break;
720  }
721 }
722 
723 static void rgbtest_fill_picture(AVFilterContext *ctx, AVFrame *frame)
724 {
725  TestSourceContext *test = ctx->priv;
726  int x, y, w = frame->width, h = frame->height;
727 
728  for (y = 0; y < h; y++) {
729  for (x = 0; x < w; x++) {
730  int c = 256*x/w;
731  int r = 0, g = 0, b = 0;
732 
733  if (3*y < h ) r = c;
734  else if (3*y < 2*h) g = c;
735  else b = c;
736 
737  rgbtest_put_pixel(frame->data[0], frame->linesize[0], x, y, r, g, b,
738  ctx->outputs[0]->format, test->rgba_map);
739  }
740  }
741 }
742 
743 static av_cold int rgbtest_init(AVFilterContext *ctx)
744 {
745  TestSourceContext *test = ctx->priv;
746 
747  test->draw_once = 1;
748  test->fill_picture_fn = rgbtest_fill_picture;
749  return init(ctx);
750 }
751 
752 static int rgbtest_query_formats(AVFilterContext *ctx)
753 {
754  static const enum AVPixelFormat pix_fmts[] = {
761  };
762 
763  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
764  if (!fmts_list)
765  return AVERROR(ENOMEM);
766  return ff_set_common_formats(ctx, fmts_list);
767 }
768 
769 static int rgbtest_config_props(AVFilterLink *outlink)
770 {
771  TestSourceContext *test = outlink->src->priv;
772 
773  ff_fill_rgba_map(test->rgba_map, outlink->format);
774  return config_props(outlink);
775 }
776 
777 static const AVFilterPad avfilter_vsrc_rgbtestsrc_outputs[] = {
778  {
779  .name = "default",
780  .type = AVMEDIA_TYPE_VIDEO,
781  .request_frame = request_frame,
782  .config_props = rgbtest_config_props,
783  },
784  { NULL }
785 };
786 
787 AVFilter ff_vsrc_rgbtestsrc = {
788  .name = "rgbtestsrc",
789  .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
790  .priv_size = sizeof(TestSourceContext),
791  .priv_class = &rgbtestsrc_class,
792  .init = rgbtest_init,
793  .uninit = uninit,
794  .query_formats = rgbtest_query_formats,
795  .inputs = NULL,
796  .outputs = avfilter_vsrc_rgbtestsrc_outputs,
797 };
798 
799 #endif /* CONFIG_RGBTESTSRC_FILTER */
800 
801 #if CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER
802 
803 static const uint8_t rainbow[7][4] = {
804  { 180, 128, 128, 255 }, /* gray */
805  { 168, 44, 136, 255 }, /* yellow */
806  { 145, 147, 44, 255 }, /* cyan */
807  { 133, 63, 52, 255 }, /* green */
808  { 63, 193, 204, 255 }, /* magenta */
809  { 51, 109, 212, 255 }, /* red */
810  { 28, 212, 120, 255 }, /* blue */
811 };
812 
813 static const uint8_t wobnair[7][4] = {
814  { 32, 240, 118, 255 }, /* blue */
815  { 19, 128, 128, 255 }, /* 7.5% intensity black */
816  { 54, 184, 198, 255 }, /* magenta */
817  { 19, 128, 128, 255 }, /* 7.5% intensity black */
818  { 188, 154, 16, 255 }, /* cyan */
819  { 19, 128, 128, 255 }, /* 7.5% intensity black */
820  { 191, 128, 128, 255 }, /* gray */
821 };
822 
823 static const uint8_t white[4] = { 235, 128, 128, 255 };
824 static const uint8_t black[4] = { 19, 128, 128, 255 }; /* 7.5% intensity black */
825 
826 /* pluge pulses */
827 static const uint8_t neg4ire[4] = { 9, 128, 128, 255 }; /* 3.5% intensity black */
828 static const uint8_t pos4ire[4] = { 29, 128, 128, 255 }; /* 11.5% intensity black */
829 
830 /* fudged Q/-I */
831 static const uint8_t i_pixel[4] = { 61, 153, 99, 255 };
832 static const uint8_t q_pixel[4] = { 35, 174, 152, 255 };
833 
834 static const uint8_t gray40[4] = { 104, 128, 128, 255 };
835 static const uint8_t gray15[4] = { 49, 128, 128, 255 };
836 static const uint8_t cyan[4] = { 188, 154, 16, 255 };
837 static const uint8_t yellow[4] = { 219, 16, 138, 255 };
838 static const uint8_t blue[4] = { 32, 240, 118, 255 };
839 static const uint8_t red[4] = { 63, 102, 240, 255 };
840 static const uint8_t black0[4] = { 16, 128, 128, 255 };
841 static const uint8_t black2[4] = { 20, 128, 128, 255 };
842 static const uint8_t black4[4] = { 25, 128, 128, 255 };
843 static const uint8_t neg2[4] = { 12, 128, 128, 255 };
844 
845 static void draw_bar(TestSourceContext *test, const uint8_t color[4],
846  unsigned x, unsigned y, unsigned w, unsigned h,
847  AVFrame *frame)
848 {
849  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
850  uint8_t *p, *p0;
851  int plane;
852 
853  x = FFMIN(x, test->w - 1);
854  y = FFMIN(y, test->h - 1);
855  w = FFMIN(w, test->w - x);
856  h = FFMIN(h, test->h - y);
857 
858  av_assert0(x + w <= test->w);
859  av_assert0(y + h <= test->h);
860 
861  for (plane = 0; frame->data[plane]; plane++) {
862  const int c = color[plane];
863  const int linesize = frame->linesize[plane];
864  int i, px, py, pw, ph;
865 
866  if (plane == 1 || plane == 2) {
867  px = x >> desc->log2_chroma_w;
868  pw = w >> desc->log2_chroma_w;
869  py = y >> desc->log2_chroma_h;
870  ph = h >> desc->log2_chroma_h;
871  } else {
872  px = x;
873  pw = w;
874  py = y;
875  ph = h;
876  }
877 
878  p0 = p = frame->data[plane] + py * linesize + px;
879  memset(p, c, pw);
880  p += linesize;
881  for (i = 1; i < ph; i++, p += linesize)
882  memcpy(p, p0, pw);
883  }
884 }
885 
886 static int smptebars_query_formats(AVFilterContext *ctx)
887 {
888  static const enum AVPixelFormat pix_fmts[] = {
893  };
894 
895  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
896  if (!fmts_list)
897  return AVERROR(ENOMEM);
898  return ff_set_common_formats(ctx, fmts_list);
899 }
900 
901 static const AVFilterPad smptebars_outputs[] = {
902  {
903  .name = "default",
904  .type = AVMEDIA_TYPE_VIDEO,
905  .request_frame = request_frame,
906  .config_props = config_props,
907  },
908  { NULL }
909 };
910 
911 #if CONFIG_SMPTEBARS_FILTER
912 
913 #define smptebars_options options
914 AVFILTER_DEFINE_CLASS(smptebars);
915 
916 static void smptebars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
917 {
918  TestSourceContext *test = ctx->priv;
919  int r_w, r_h, w_h, p_w, p_h, i, tmp, x = 0;
920  const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
921 
923 
924  r_w = FFALIGN((test->w + 6) / 7, 1 << pixdesc->log2_chroma_w);
925  r_h = FFALIGN(test->h * 2 / 3, 1 << pixdesc->log2_chroma_h);
926  w_h = FFALIGN(test->h * 3 / 4 - r_h, 1 << pixdesc->log2_chroma_h);
927  p_w = FFALIGN(r_w * 5 / 4, 1 << pixdesc->log2_chroma_w);
928  p_h = test->h - w_h - r_h;
929 
930  for (i = 0; i < 7; i++) {
931  draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
932  draw_bar(test, wobnair[i], x, r_h, r_w, w_h, picref);
933  x += r_w;
934  }
935  x = 0;
936  draw_bar(test, i_pixel, x, r_h + w_h, p_w, p_h, picref);
937  x += p_w;
938  draw_bar(test, white, x, r_h + w_h, p_w, p_h, picref);
939  x += p_w;
940  draw_bar(test, q_pixel, x, r_h + w_h, p_w, p_h, picref);
941  x += p_w;
942  tmp = FFALIGN(5 * r_w - x, 1 << pixdesc->log2_chroma_w);
943  draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
944  x += tmp;
945  tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
946  draw_bar(test, neg4ire, x, r_h + w_h, tmp, p_h, picref);
947  x += tmp;
948  draw_bar(test, black, x, r_h + w_h, tmp, p_h, picref);
949  x += tmp;
950  draw_bar(test, pos4ire, x, r_h + w_h, tmp, p_h, picref);
951  x += tmp;
952  draw_bar(test, black, x, r_h + w_h, test->w - x, p_h, picref);
953 }
954 
955 static av_cold int smptebars_init(AVFilterContext *ctx)
956 {
957  TestSourceContext *test = ctx->priv;
958 
959  test->fill_picture_fn = smptebars_fill_picture;
960  test->draw_once = 1;
961  return init(ctx);
962 }
963 
964 AVFilter ff_vsrc_smptebars = {
965  .name = "smptebars",
966  .description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
967  .priv_size = sizeof(TestSourceContext),
968  .priv_class = &smptebars_class,
969  .init = smptebars_init,
970  .uninit = uninit,
971  .query_formats = smptebars_query_formats,
972  .inputs = NULL,
973  .outputs = smptebars_outputs,
974 };
975 
976 #endif /* CONFIG_SMPTEBARS_FILTER */
977 
978 #if CONFIG_SMPTEHDBARS_FILTER
979 
980 #define smptehdbars_options options
981 AVFILTER_DEFINE_CLASS(smptehdbars);
982 
983 static void smptehdbars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
984 {
985  TestSourceContext *test = ctx->priv;
986  int d_w, r_w, r_h, l_w, i, tmp, x = 0, y = 0;
987  const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
988 
990 
991  d_w = FFALIGN(test->w / 8, 1 << pixdesc->log2_chroma_w);
992  r_h = FFALIGN(test->h * 7 / 12, 1 << pixdesc->log2_chroma_h);
993  draw_bar(test, gray40, x, 0, d_w, r_h, picref);
994  x += d_w;
995 
996  r_w = FFALIGN((((test->w + 3) / 4) * 3) / 7, 1 << pixdesc->log2_chroma_w);
997  for (i = 0; i < 7; i++) {
998  draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
999  x += r_w;
1000  }
1001  draw_bar(test, gray40, x, 0, test->w - x, r_h, picref);
1002  y = r_h;
1003  r_h = FFALIGN(test->h / 12, 1 << pixdesc->log2_chroma_h);
1004  draw_bar(test, cyan, 0, y, d_w, r_h, picref);
1005  x = d_w;
1006  draw_bar(test, i_pixel, x, y, r_w, r_h, picref);
1007  x += r_w;
1008  tmp = r_w * 6;
1009  draw_bar(test, rainbow[0], x, y, tmp, r_h, picref);
1010  x += tmp;
1011  l_w = x;
1012  draw_bar(test, blue, x, y, test->w - x, r_h, picref);
1013  y += r_h;
1014  draw_bar(test, yellow, 0, y, d_w, r_h, picref);
1015  x = d_w;
1016  draw_bar(test, q_pixel, x, y, r_w, r_h, picref);
1017  x += r_w;
1018 
1019  for (i = 0; i < tmp; i += 1 << pixdesc->log2_chroma_w) {
1020  uint8_t yramp[4] = {0};
1021 
1022  yramp[0] = i * 255 / tmp;
1023  yramp[1] = 128;
1024  yramp[2] = 128;
1025  yramp[3] = 255;
1026 
1027  draw_bar(test, yramp, x, y, 1 << pixdesc->log2_chroma_w, r_h, picref);
1028  x += 1 << pixdesc->log2_chroma_w;
1029  }
1030  draw_bar(test, red, x, y, test->w - x, r_h, picref);
1031  y += r_h;
1032  draw_bar(test, gray15, 0, y, d_w, test->h - y, picref);
1033  x = d_w;
1034  tmp = FFALIGN(r_w * 3 / 2, 1 << pixdesc->log2_chroma_w);
1035  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1036  x += tmp;
1037  tmp = FFALIGN(r_w * 2, 1 << pixdesc->log2_chroma_w);
1038  draw_bar(test, white, x, y, tmp, test->h - y, picref);
1039  x += tmp;
1040  tmp = FFALIGN(r_w * 5 / 6, 1 << pixdesc->log2_chroma_w);
1041  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1042  x += tmp;
1043  tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
1044  draw_bar(test, neg2, x, y, tmp, test->h - y, picref);
1045  x += tmp;
1046  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1047  x += tmp;
1048  draw_bar(test, black2, x, y, tmp, test->h - y, picref);
1049  x += tmp;
1050  draw_bar(test, black0, x, y, tmp, test->h - y, picref);
1051  x += tmp;
1052  draw_bar(test, black4, x, y, tmp, test->h - y, picref);
1053  x += tmp;
1054  r_w = l_w - x;
1055  draw_bar(test, black0, x, y, r_w, test->h - y, picref);
1056  x += r_w;
1057  draw_bar(test, gray15, x, y, test->w - x, test->h - y, picref);
1058 }
1059 
1060 static av_cold int smptehdbars_init(AVFilterContext *ctx)
1061 {
1062  TestSourceContext *test = ctx->priv;
1063 
1064  test->fill_picture_fn = smptehdbars_fill_picture;
1065  test->draw_once = 1;
1066  return init(ctx);
1067 }
1068 
1069 AVFilter ff_vsrc_smptehdbars = {
1070  .name = "smptehdbars",
1071  .description = NULL_IF_CONFIG_SMALL("Generate SMPTE HD color bars."),
1072  .priv_size = sizeof(TestSourceContext),
1073  .priv_class = &smptehdbars_class,
1074  .init = smptehdbars_init,
1075  .uninit = uninit,
1076  .query_formats = smptebars_query_formats,
1077  .inputs = NULL,
1078  .outputs = smptebars_outputs,
1079 };
1080 
1081 #endif /* CONFIG_SMPTEHDBARS_FILTER */
1082 #endif /* CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER */