FFmpeg  4.2.3
vf_colorspace.c
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1 /*
2  * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /*
22  * @file
23  * Convert between colorspaces.
24  */
25 
26 #include "libavutil/avassert.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/pixfmt.h"
30 
31 #include "avfilter.h"
32 #include "colorspacedsp.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "video.h"
36 #include "colorspace.h"
37 
38 enum DitherMode {
42 };
43 
44 enum Colorspace {
55 };
56 
57 enum Whitepoint {
63 };
64 
71 };
72 
84 };
85 
86 static const enum AVColorPrimaries default_prm[CS_NB + 1] = {
97 };
98 
99 static const enum AVColorSpace default_csp[CS_NB + 1] = {
110 };
111 
115 };
116 
118  double alpha, beta, gamma, delta;
119 };
120 
121 typedef struct ColorSpaceContext {
122  const AVClass *class;
123 
125 
126  enum Colorspace user_all, user_iall;
127  enum AVColorSpace in_csp, out_csp, user_csp, user_icsp;
128  enum AVColorRange in_rng, out_rng, user_rng, user_irng;
129  enum AVColorTransferCharacteristic in_trc, out_trc, user_trc, user_itrc;
130  enum AVColorPrimaries in_prm, out_prm, user_prm, user_iprm;
131  enum AVPixelFormat in_format, user_format;
134  enum WhitepointAdaptation wp_adapt;
135 
136  int16_t *rgb[3];
137  ptrdiff_t rgb_stride;
138  unsigned rgb_sz;
139  int *dither_scratch[3][2], *dither_scratch_base[3][2];
140 
141  const struct ColorPrimaries *in_primaries, *out_primaries;
143  DECLARE_ALIGNED(16, int16_t, lrgb2lrgb_coeffs)[3][3][8];
144 
145  const struct TransferCharacteristics *in_txchr, *out_txchr;
147  int16_t *lin_lut, *delin_lut;
148 
149  const struct LumaCoefficients *in_lumacoef, *out_lumacoef;
150  int yuv2yuv_passthrough, yuv2yuv_fastmode;
151  DECLARE_ALIGNED(16, int16_t, yuv2rgb_coeffs)[3][3][8];
152  DECLARE_ALIGNED(16, int16_t, rgb2yuv_coeffs)[3][3][8];
153  DECLARE_ALIGNED(16, int16_t, yuv2yuv_coeffs)[3][3][8];
154  DECLARE_ALIGNED(16, int16_t, yuv_offset)[2 /* in, out */][8];
159  double yuv2rgb_dbl_coeffs[3][3], rgb2yuv_dbl_coeffs[3][3];
160  int in_y_rng, in_uv_rng, out_y_rng, out_uv_rng;
161 
164 
165 // FIXME deal with odd width/heights
166 // FIXME faster linearize/delinearize implementation (integer pow)
167 // FIXME bt2020cl support (linearization between yuv/rgb step instead of between rgb/xyz)
168 // FIXME test that the values in (de)lin_lut don't exceed their container storage
169 // type size (only useful if we keep the LUT and don't move to fast integer pow)
170 // FIXME dithering if bitdepth goes down?
171 // FIXME bitexact for fate integration?
172 
173 // FIXME I'm pretty sure gamma22/28 also have a linear toe slope, but I can't
174 // find any actual tables that document their real values...
175 // See http://www.13thmonkey.org/~boris/gammacorrection/ first graph why it matters
177  [AVCOL_TRC_BT709] = { 1.099, 0.018, 0.45, 4.5 },
178  [AVCOL_TRC_GAMMA22] = { 1.0, 0.0, 1.0 / 2.2, 0.0 },
179  [AVCOL_TRC_GAMMA28] = { 1.0, 0.0, 1.0 / 2.8, 0.0 },
180  [AVCOL_TRC_SMPTE170M] = { 1.099, 0.018, 0.45, 4.5 },
181  [AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
182  [AVCOL_TRC_IEC61966_2_1] = { 1.055, 0.0031308, 1.0 / 2.4, 12.92 },
183  [AVCOL_TRC_IEC61966_2_4] = { 1.099, 0.018, 0.45, 4.5 },
184  [AVCOL_TRC_BT2020_10] = { 1.099, 0.018, 0.45, 4.5 },
185  [AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
186 };
187 
188 static const struct TransferCharacteristics *
190 {
191  const struct TransferCharacteristics *coeffs;
192 
193  if (trc >= AVCOL_TRC_NB)
194  return NULL;
195  coeffs = &transfer_characteristics[trc];
196  if (!coeffs->alpha)
197  return NULL;
198 
199  return coeffs;
200 }
201 
203  [WP_D65] = { 0.3127, 0.3290 },
204  [WP_C] = { 0.3100, 0.3160 },
205  [WP_DCI] = { 0.3140, 0.3510 },
206  [WP_E] = { 1/3.0f, 1/3.0f },
207 };
208 
210  [AVCOL_PRI_BT709] = { WP_D65, { 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 } },
211  [AVCOL_PRI_BT470M] = { WP_C, { 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 } },
212  [AVCOL_PRI_BT470BG] = { WP_D65, { 0.640, 0.330, 0.290, 0.600, 0.150, 0.060 } },
213  [AVCOL_PRI_SMPTE170M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
214  [AVCOL_PRI_SMPTE240M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
215  [AVCOL_PRI_SMPTE428] = { WP_E, { 0.735, 0.265, 0.274, 0.718, 0.167, 0.009 } },
216  [AVCOL_PRI_SMPTE431] = { WP_DCI, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
217  [AVCOL_PRI_SMPTE432] = { WP_D65, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
218  [AVCOL_PRI_FILM] = { WP_C, { 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 } },
219  [AVCOL_PRI_BT2020] = { WP_D65, { 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 } },
220  [AVCOL_PRI_JEDEC_P22] = { WP_D65, { 0.630, 0.340, 0.295, 0.605, 0.155, 0.077 } },
221 };
222 
224 {
225  const struct ColorPrimaries *p;
226 
227  if (prm >= AVCOL_PRI_NB)
228  return NULL;
229  p = &color_primaries[prm];
230  if (!p->coeff.xr)
231  return NULL;
232 
233  return p;
234 }
235 
237 {
238  int n;
239  double in_alpha = s->in_txchr->alpha, in_beta = s->in_txchr->beta;
240  double in_gamma = s->in_txchr->gamma, in_delta = s->in_txchr->delta;
241  double in_ialpha = 1.0 / in_alpha, in_igamma = 1.0 / in_gamma, in_idelta = 1.0 / in_delta;
242  double out_alpha = s->out_txchr->alpha, out_beta = s->out_txchr->beta;
243  double out_gamma = s->out_txchr->gamma, out_delta = s->out_txchr->delta;
244 
245  s->lin_lut = av_malloc(sizeof(*s->lin_lut) * 32768 * 2);
246  if (!s->lin_lut)
247  return AVERROR(ENOMEM);
248  s->delin_lut = &s->lin_lut[32768];
249  for (n = 0; n < 32768; n++) {
250  double v = (n - 2048.0) / 28672.0, d, l;
251 
252  // delinearize
253  if (v <= -out_beta) {
254  d = -out_alpha * pow(-v, out_gamma) + (out_alpha - 1.0);
255  } else if (v < out_beta) {
256  d = out_delta * v;
257  } else {
258  d = out_alpha * pow(v, out_gamma) - (out_alpha - 1.0);
259  }
260  s->delin_lut[n] = av_clip_int16(lrint(d * 28672.0));
261 
262  // linearize
263  if (v <= -in_beta * in_delta) {
264  l = -pow((1.0 - in_alpha - v) * in_ialpha, in_igamma);
265  } else if (v < in_beta * in_delta) {
266  l = v * in_idelta;
267  } else {
268  l = pow((v + in_alpha - 1.0) * in_ialpha, in_igamma);
269  }
270  s->lin_lut[n] = av_clip_int16(lrint(l * 28672.0));
271  }
272 
273  return 0;
274 }
275 
276 /*
277  * See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html
278  * This function uses the Bradford mechanism.
279  */
280 static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt,
281  enum Whitepoint src, enum Whitepoint dst)
282 {
283  static const double ma_tbl[NB_WP_ADAPT_NON_IDENTITY][3][3] = {
284  [WP_ADAPT_BRADFORD] = {
285  { 0.8951, 0.2664, -0.1614 },
286  { -0.7502, 1.7135, 0.0367 },
287  { 0.0389, -0.0685, 1.0296 },
288  }, [WP_ADAPT_VON_KRIES] = {
289  { 0.40024, 0.70760, -0.08081 },
290  { -0.22630, 1.16532, 0.04570 },
291  { 0.00000, 0.00000, 0.91822 },
292  },
293  };
294  const double (*ma)[3] = ma_tbl[wp_adapt];
295  const struct WhitepointCoefficients *wp_src = &whitepoint_coefficients[src];
296  double zw_src = 1.0 - wp_src->xw - wp_src->yw;
297  const struct WhitepointCoefficients *wp_dst = &whitepoint_coefficients[dst];
298  double zw_dst = 1.0 - wp_dst->xw - wp_dst->yw;
299  double mai[3][3], fac[3][3], tmp[3][3];
300  double rs, gs, bs, rd, gd, bd;
301 
302  ff_matrix_invert_3x3(ma, mai);
303  rs = ma[0][0] * wp_src->xw + ma[0][1] * wp_src->yw + ma[0][2] * zw_src;
304  gs = ma[1][0] * wp_src->xw + ma[1][1] * wp_src->yw + ma[1][2] * zw_src;
305  bs = ma[2][0] * wp_src->xw + ma[2][1] * wp_src->yw + ma[2][2] * zw_src;
306  rd = ma[0][0] * wp_dst->xw + ma[0][1] * wp_dst->yw + ma[0][2] * zw_dst;
307  gd = ma[1][0] * wp_dst->xw + ma[1][1] * wp_dst->yw + ma[1][2] * zw_dst;
308  bd = ma[2][0] * wp_dst->xw + ma[2][1] * wp_dst->yw + ma[2][2] * zw_dst;
309  fac[0][0] = rd / rs;
310  fac[1][1] = gd / gs;
311  fac[2][2] = bd / bs;
312  fac[0][1] = fac[0][2] = fac[1][0] = fac[1][2] = fac[2][0] = fac[2][1] = 0.0;
313  ff_matrix_mul_3x3(tmp, ma, fac);
314  ff_matrix_mul_3x3(out, tmp, mai);
315 }
316 
317 static void apply_lut(int16_t *buf[3], ptrdiff_t stride,
318  int w, int h, const int16_t *lut)
319 {
320  int y, x, n;
321 
322  for (n = 0; n < 3; n++) {
323  int16_t *data = buf[n];
324 
325  for (y = 0; y < h; y++) {
326  for (x = 0; x < w; x++)
327  data[x] = lut[av_clip_uintp2(2048 + data[x], 15)];
328 
329  data += stride;
330  }
331  }
332 }
333 
334 struct ThreadData {
335  AVFrame *in, *out;
336  ptrdiff_t in_linesize[3], out_linesize[3];
337  int in_ss_h, out_ss_h;
338 };
339 
340 static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
341 {
342  struct ThreadData *td = data;
343  ColorSpaceContext *s = ctx->priv;
344  uint8_t *in_data[3], *out_data[3];
345  int16_t *rgb[3];
346  int h_in = (td->in->height + 1) >> 1;
347  int h1 = 2 * (job_nr * h_in / n_jobs), h2 = 2 * ((job_nr + 1) * h_in / n_jobs);
348  int w = td->in->width, h = h2 - h1;
349 
350  in_data[0] = td->in->data[0] + td->in_linesize[0] * h1;
351  in_data[1] = td->in->data[1] + td->in_linesize[1] * (h1 >> td->in_ss_h);
352  in_data[2] = td->in->data[2] + td->in_linesize[2] * (h1 >> td->in_ss_h);
353  out_data[0] = td->out->data[0] + td->out_linesize[0] * h1;
354  out_data[1] = td->out->data[1] + td->out_linesize[1] * (h1 >> td->out_ss_h);
355  out_data[2] = td->out->data[2] + td->out_linesize[2] * (h1 >> td->out_ss_h);
356  rgb[0] = s->rgb[0] + s->rgb_stride * h1;
357  rgb[1] = s->rgb[1] + s->rgb_stride * h1;
358  rgb[2] = s->rgb[2] + s->rgb_stride * h1;
359 
360  // FIXME for simd, also make sure we do pictures with negative stride
361  // top-down so we don't overwrite lines with padding of data before it
362  // in the same buffer (same as swscale)
363 
364  if (s->yuv2yuv_fastmode) {
365  // FIXME possibly use a fast mode in case only the y range changes?
366  // since in that case, only the diagonal entries in yuv2yuv_coeffs[]
367  // are non-zero
368  s->yuv2yuv(out_data, td->out_linesize, in_data, td->in_linesize, w, h,
369  s->yuv2yuv_coeffs, s->yuv_offset);
370  } else {
371  // FIXME maybe (for caching efficiency) do pipeline per-line instead of
372  // full buffer per function? (Or, since yuv2rgb requires 2 lines: per
373  // 2 lines, for yuv420.)
374  /*
375  * General design:
376  * - yuv2rgb converts from whatever range the input was ([16-235/240] or
377  * [0,255] or the 10/12bpp equivalents thereof) to an integer version
378  * of RGB in psuedo-restricted 15+sign bits. That means that the float
379  * range [0.0,1.0] is in [0,28762], and the remainder of the int16_t
380  * range is used for overflow/underflow outside the representable
381  * range of this RGB type. rgb2yuv is the exact opposite.
382  * - gamma correction is done using a LUT since that appears to work
383  * fairly fast.
384  * - If the input is chroma-subsampled (420/422), the yuv2rgb conversion
385  * (or rgb2yuv conversion) uses nearest-neighbour sampling to read
386  * read chroma pixels at luma resolution. If you want some more fancy
387  * filter, you can use swscale to convert to yuv444p.
388  * - all coefficients are 14bit (so in the [-2.0,2.0] range).
389  */
390  s->yuv2rgb(rgb, s->rgb_stride, in_data, td->in_linesize, w, h,
391  s->yuv2rgb_coeffs, s->yuv_offset[0]);
392  if (!s->rgb2rgb_passthrough) {
393  apply_lut(rgb, s->rgb_stride, w, h, s->lin_lut);
394  if (!s->lrgb2lrgb_passthrough)
395  s->dsp.multiply3x3(rgb, s->rgb_stride, w, h, s->lrgb2lrgb_coeffs);
396  apply_lut(rgb, s->rgb_stride, w, h, s->delin_lut);
397  }
398  if (s->dither == DITHER_FSB) {
399  s->rgb2yuv_fsb(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
401  } else {
402  s->rgb2yuv(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
403  s->rgb2yuv_coeffs, s->yuv_offset[1]);
404  }
405  }
406 
407  return 0;
408 }
409 
410 static int get_range_off(AVFilterContext *ctx, int *off,
411  int *y_rng, int *uv_rng,
412  enum AVColorRange rng, int depth)
413 {
414  switch (rng) {
416  ColorSpaceContext *s = ctx->priv;
417 
418  if (!s->did_warn_range) {
419  av_log(ctx, AV_LOG_WARNING, "Input range not set, assuming tv/mpeg\n");
420  s->did_warn_range = 1;
421  }
422  }
423  // fall-through
424  case AVCOL_RANGE_MPEG:
425  *off = 16 << (depth - 8);
426  *y_rng = 219 << (depth - 8);
427  *uv_rng = 224 << (depth - 8);
428  break;
429  case AVCOL_RANGE_JPEG:
430  *off = 0;
431  *y_rng = *uv_rng = (256 << (depth - 8)) - 1;
432  break;
433  default:
434  return AVERROR(EINVAL);
435  }
436 
437  return 0;
438 }
439 
441  const AVFrame *in, const AVFrame *out)
442 {
443  ColorSpaceContext *s = ctx->priv;
444  const AVPixFmtDescriptor *in_desc = av_pix_fmt_desc_get(in->format);
445  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(out->format);
446  int emms = 0, m, n, o, res, fmt_identical, redo_yuv2rgb = 0, redo_rgb2yuv = 0;
447 
448 #define supported_depth(d) ((d) == 8 || (d) == 10 || (d) == 12)
449 #define supported_subsampling(lcw, lch) \
450  (((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
451 #define supported_format(d) \
452  ((d) != NULL && (d)->nb_components == 3 && \
453  !((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
454  supported_depth((d)->comp[0].depth) && \
455  supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))
456 
457  if (!supported_format(in_desc)) {
458  av_log(ctx, AV_LOG_ERROR,
459  "Unsupported input format %d (%s) or bitdepth (%d)\n",
461  in_desc ? in_desc->comp[0].depth : -1);
462  return AVERROR(EINVAL);
463  }
464  if (!supported_format(out_desc)) {
465  av_log(ctx, AV_LOG_ERROR,
466  "Unsupported output format %d (%s) or bitdepth (%d)\n",
467  out->format, av_get_pix_fmt_name(out->format),
468  out_desc ? out_desc->comp[0].depth : -1);
469  return AVERROR(EINVAL);
470  }
471 
472  if (in->color_primaries != s->in_prm) s->in_primaries = NULL;
473  if (out->color_primaries != s->out_prm) s->out_primaries = NULL;
474  if (in->color_trc != s->in_trc) s->in_txchr = NULL;
475  if (out->color_trc != s->out_trc) s->out_txchr = NULL;
476  if (in->colorspace != s->in_csp ||
477  in->color_range != s->in_rng) s->in_lumacoef = NULL;
478  if (out->colorspace != s->out_csp ||
479  out->color_range != s->out_rng) s->out_lumacoef = NULL;
480 
481  if (!s->out_primaries || !s->in_primaries) {
482  s->in_prm = in->color_primaries;
483  if (s->user_iall != CS_UNSPECIFIED)
484  s->in_prm = default_prm[FFMIN(s->user_iall, CS_NB)];
486  s->in_prm = s->user_iprm;
487  s->in_primaries = get_color_primaries(s->in_prm);
488  if (!s->in_primaries) {
489  av_log(ctx, AV_LOG_ERROR,
490  "Unsupported input primaries %d (%s)\n",
491  s->in_prm, av_color_primaries_name(s->in_prm));
492  return AVERROR(EINVAL);
493  }
494  s->out_prm = out->color_primaries;
495  s->out_primaries = get_color_primaries(s->out_prm);
496  if (!s->out_primaries) {
497  if (s->out_prm == AVCOL_PRI_UNSPECIFIED) {
498  if (s->user_all == CS_UNSPECIFIED) {
499  av_log(ctx, AV_LOG_ERROR, "Please specify output primaries\n");
500  } else {
501  av_log(ctx, AV_LOG_ERROR,
502  "Unsupported output color property %d\n", s->user_all);
503  }
504  } else {
505  av_log(ctx, AV_LOG_ERROR,
506  "Unsupported output primaries %d (%s)\n",
507  s->out_prm, av_color_primaries_name(s->out_prm));
508  }
509  return AVERROR(EINVAL);
510  }
512  sizeof(*s->in_primaries));
513  if (!s->lrgb2lrgb_passthrough) {
514  double rgb2xyz[3][3], xyz2rgb[3][3], rgb2rgb[3][3];
515  const struct WhitepointCoefficients *wp_out, *wp_in;
516 
517  wp_out = &whitepoint_coefficients[s->out_primaries->wp];
518  wp_in = &whitepoint_coefficients[s->in_primaries->wp];
519  ff_fill_rgb2xyz_table(&s->out_primaries->coeff, wp_out, rgb2xyz);
520  ff_matrix_invert_3x3(rgb2xyz, xyz2rgb);
521  ff_fill_rgb2xyz_table(&s->in_primaries->coeff, wp_in, rgb2xyz);
522  if (s->out_primaries->wp != s->in_primaries->wp &&
523  s->wp_adapt != WP_ADAPT_IDENTITY) {
524  double wpconv[3][3], tmp[3][3];
525 
527  s->out_primaries->wp);
528  ff_matrix_mul_3x3(tmp, rgb2xyz, wpconv);
529  ff_matrix_mul_3x3(rgb2rgb, tmp, xyz2rgb);
530  } else {
531  ff_matrix_mul_3x3(rgb2rgb, rgb2xyz, xyz2rgb);
532  }
533  for (m = 0; m < 3; m++)
534  for (n = 0; n < 3; n++) {
535  s->lrgb2lrgb_coeffs[m][n][0] = lrint(16384.0 * rgb2rgb[m][n]);
536  for (o = 1; o < 8; o++)
537  s->lrgb2lrgb_coeffs[m][n][o] = s->lrgb2lrgb_coeffs[m][n][0];
538  }
539 
540  emms = 1;
541  }
542  }
543 
544  if (!s->in_txchr) {
545  av_freep(&s->lin_lut);
546  s->in_trc = in->color_trc;
547  if (s->user_iall != CS_UNSPECIFIED)
548  s->in_trc = default_trc[FFMIN(s->user_iall, CS_NB)];
550  s->in_trc = s->user_itrc;
551  s->in_txchr = get_transfer_characteristics(s->in_trc);
552  if (!s->in_txchr) {
553  av_log(ctx, AV_LOG_ERROR,
554  "Unsupported input transfer characteristics %d (%s)\n",
555  s->in_trc, av_color_transfer_name(s->in_trc));
556  return AVERROR(EINVAL);
557  }
558  }
559 
560  if (!s->out_txchr) {
561  av_freep(&s->lin_lut);
562  s->out_trc = out->color_trc;
563  s->out_txchr = get_transfer_characteristics(s->out_trc);
564  if (!s->out_txchr) {
565  if (s->out_trc == AVCOL_TRC_UNSPECIFIED) {
566  if (s->user_all == CS_UNSPECIFIED) {
567  av_log(ctx, AV_LOG_ERROR,
568  "Please specify output transfer characteristics\n");
569  } else {
570  av_log(ctx, AV_LOG_ERROR,
571  "Unsupported output color property %d\n", s->user_all);
572  }
573  } else {
574  av_log(ctx, AV_LOG_ERROR,
575  "Unsupported output transfer characteristics %d (%s)\n",
576  s->out_trc, av_color_transfer_name(s->out_trc));
577  }
578  return AVERROR(EINVAL);
579  }
580  }
581 
583  !memcmp(s->in_txchr, s->out_txchr, sizeof(*s->in_txchr)));
584  if (!s->rgb2rgb_passthrough && !s->lin_lut) {
585  res = fill_gamma_table(s);
586  if (res < 0)
587  return res;
588  emms = 1;
589  }
590 
591  if (!s->in_lumacoef) {
592  s->in_csp = in->colorspace;
593  if (s->user_iall != CS_UNSPECIFIED)
594  s->in_csp = default_csp[FFMIN(s->user_iall, CS_NB)];
596  s->in_csp = s->user_icsp;
597  s->in_rng = in->color_range;
599  s->in_rng = s->user_irng;
600  s->in_lumacoef = ff_get_luma_coefficients(s->in_csp);
601  if (!s->in_lumacoef) {
602  av_log(ctx, AV_LOG_ERROR,
603  "Unsupported input colorspace %d (%s)\n",
604  s->in_csp, av_color_space_name(s->in_csp));
605  return AVERROR(EINVAL);
606  }
607  redo_yuv2rgb = 1;
608  }
609 
610  if (!s->out_lumacoef) {
611  s->out_csp = out->colorspace;
612  s->out_rng = out->color_range;
613  s->out_lumacoef = ff_get_luma_coefficients(s->out_csp);
614  if (!s->out_lumacoef) {
615  if (s->out_csp == AVCOL_SPC_UNSPECIFIED) {
616  if (s->user_all == CS_UNSPECIFIED) {
617  av_log(ctx, AV_LOG_ERROR,
618  "Please specify output transfer characteristics\n");
619  } else {
620  av_log(ctx, AV_LOG_ERROR,
621  "Unsupported output color property %d\n", s->user_all);
622  }
623  } else {
624  av_log(ctx, AV_LOG_ERROR,
625  "Unsupported output transfer characteristics %d (%s)\n",
626  s->out_csp, av_color_space_name(s->out_csp));
627  }
628  return AVERROR(EINVAL);
629  }
630  redo_rgb2yuv = 1;
631  }
632 
633  fmt_identical = in_desc->log2_chroma_h == out_desc->log2_chroma_h &&
634  in_desc->log2_chroma_w == out_desc->log2_chroma_w;
635  s->yuv2yuv_fastmode = s->rgb2rgb_passthrough && fmt_identical;
636  s->yuv2yuv_passthrough = s->yuv2yuv_fastmode && s->in_rng == s->out_rng &&
637  !memcmp(s->in_lumacoef, s->out_lumacoef,
638  sizeof(*s->in_lumacoef)) &&
639  in_desc->comp[0].depth == out_desc->comp[0].depth;
640  if (!s->yuv2yuv_passthrough) {
641  if (redo_yuv2rgb) {
642  double rgb2yuv[3][3], (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
643  int off, bits, in_rng;
644 
645  res = get_range_off(ctx, &off, &s->in_y_rng, &s->in_uv_rng,
646  s->in_rng, in_desc->comp[0].depth);
647  if (res < 0) {
648  av_log(ctx, AV_LOG_ERROR,
649  "Unsupported input color range %d (%s)\n",
650  s->in_rng, av_color_range_name(s->in_rng));
651  return res;
652  }
653  for (n = 0; n < 8; n++)
654  s->yuv_offset[0][n] = off;
655  ff_fill_rgb2yuv_table(s->in_lumacoef, rgb2yuv);
656  ff_matrix_invert_3x3(rgb2yuv, yuv2rgb);
657  bits = 1 << (in_desc->comp[0].depth - 1);
658  for (n = 0; n < 3; n++) {
659  for (in_rng = s->in_y_rng, m = 0; m < 3; m++, in_rng = s->in_uv_rng) {
660  s->yuv2rgb_coeffs[n][m][0] = lrint(28672 * bits * yuv2rgb[n][m] / in_rng);
661  for (o = 1; o < 8; o++)
662  s->yuv2rgb_coeffs[n][m][o] = s->yuv2rgb_coeffs[n][m][0];
663  }
664  }
665  av_assert2(s->yuv2rgb_coeffs[0][1][0] == 0);
666  av_assert2(s->yuv2rgb_coeffs[2][2][0] == 0);
667  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[1][0][0]);
668  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[2][0][0]);
669  s->yuv2rgb = s->dsp.yuv2rgb[(in_desc->comp[0].depth - 8) >> 1]
670  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
671  emms = 1;
672  }
673 
674  if (redo_rgb2yuv) {
675  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
676  int off, out_rng, bits;
677 
678  res = get_range_off(ctx, &off, &s->out_y_rng, &s->out_uv_rng,
679  s->out_rng, out_desc->comp[0].depth);
680  if (res < 0) {
681  av_log(ctx, AV_LOG_ERROR,
682  "Unsupported output color range %d (%s)\n",
683  s->out_rng, av_color_range_name(s->out_rng));
684  return res;
685  }
686  for (n = 0; n < 8; n++)
687  s->yuv_offset[1][n] = off;
689  bits = 1 << (29 - out_desc->comp[0].depth);
690  for (out_rng = s->out_y_rng, n = 0; n < 3; n++, out_rng = s->out_uv_rng) {
691  for (m = 0; m < 3; m++) {
692  s->rgb2yuv_coeffs[n][m][0] = lrint(bits * out_rng * rgb2yuv[n][m] / 28672);
693  for (o = 1; o < 8; o++)
694  s->rgb2yuv_coeffs[n][m][o] = s->rgb2yuv_coeffs[n][m][0];
695  }
696  }
697  av_assert2(s->rgb2yuv_coeffs[1][2][0] == s->rgb2yuv_coeffs[2][0][0]);
698  s->rgb2yuv = s->dsp.rgb2yuv[(out_desc->comp[0].depth - 8) >> 1]
699  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
700  s->rgb2yuv_fsb = s->dsp.rgb2yuv_fsb[(out_desc->comp[0].depth - 8) >> 1]
701  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
702  emms = 1;
703  }
704 
705  if (s->yuv2yuv_fastmode && (redo_yuv2rgb || redo_rgb2yuv)) {
706  int idepth = in_desc->comp[0].depth, odepth = out_desc->comp[0].depth;
707  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
708  double (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
709  double yuv2yuv[3][3];
710  int in_rng, out_rng;
711 
712  ff_matrix_mul_3x3(yuv2yuv, yuv2rgb, rgb2yuv);
713  for (out_rng = s->out_y_rng, m = 0; m < 3; m++, out_rng = s->out_uv_rng) {
714  for (in_rng = s->in_y_rng, n = 0; n < 3; n++, in_rng = s->in_uv_rng) {
715  s->yuv2yuv_coeffs[m][n][0] =
716  lrint(16384 * yuv2yuv[m][n] * out_rng * (1 << idepth) /
717  (in_rng * (1 << odepth)));
718  for (o = 1; o < 8; o++)
719  s->yuv2yuv_coeffs[m][n][o] = s->yuv2yuv_coeffs[m][n][0];
720  }
721  }
722  av_assert2(s->yuv2yuv_coeffs[1][0][0] == 0);
723  av_assert2(s->yuv2yuv_coeffs[2][0][0] == 0);
724  s->yuv2yuv = s->dsp.yuv2yuv[(idepth - 8) >> 1][(odepth - 8) >> 1]
725  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
726  }
727  }
728 
729  if (emms)
730  emms_c();
731 
732  return 0;
733 }
734 
736 {
737  ColorSpaceContext *s = ctx->priv;
738 
740 
741  return 0;
742 }
743 
745 {
746  ColorSpaceContext *s = ctx->priv;
747 
748  av_freep(&s->rgb[0]);
749  av_freep(&s->rgb[1]);
750  av_freep(&s->rgb[2]);
751  s->rgb_sz = 0;
752  av_freep(&s->dither_scratch_base[0][0]);
753  av_freep(&s->dither_scratch_base[0][1]);
754  av_freep(&s->dither_scratch_base[1][0]);
755  av_freep(&s->dither_scratch_base[1][1]);
756  av_freep(&s->dither_scratch_base[2][0]);
757  av_freep(&s->dither_scratch_base[2][1]);
758 
759  av_freep(&s->lin_lut);
760 }
761 
762 static int filter_frame(AVFilterLink *link, AVFrame *in)
763 {
764  AVFilterContext *ctx = link->dst;
765  AVFilterLink *outlink = ctx->outputs[0];
766  ColorSpaceContext *s = ctx->priv;
767  // FIXME if yuv2yuv_passthrough, don't get a new buffer but use the
768  // input one if it is writable *OR* the actual literal values of in_*
769  // and out_* are identical (not just their respective properties)
770  AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
771  int res;
772  ptrdiff_t rgb_stride = FFALIGN(in->width * sizeof(int16_t), 32);
773  unsigned rgb_sz = rgb_stride * in->height;
774  struct ThreadData td;
775 
776  if (!out) {
777  av_frame_free(&in);
778  return AVERROR(ENOMEM);
779  }
780  res = av_frame_copy_props(out, in);
781  if (res < 0) {
782  av_frame_free(&in);
783  return res;
784  }
785 
786  out->color_primaries = s->user_prm == AVCOL_PRI_UNSPECIFIED ?
787  default_prm[FFMIN(s->user_all, CS_NB)] : s->user_prm;
788  if (s->user_trc == AVCOL_TRC_UNSPECIFIED) {
790 
791  out->color_trc = default_trc[FFMIN(s->user_all, CS_NB)];
792  if (out->color_trc == AVCOL_TRC_BT2020_10 && desc && desc->comp[0].depth >= 12)
794  } else {
795  out->color_trc = s->user_trc;
796  }
797  out->colorspace = s->user_csp == AVCOL_SPC_UNSPECIFIED ?
798  default_csp[FFMIN(s->user_all, CS_NB)] : s->user_csp;
799  out->color_range = s->user_rng == AVCOL_RANGE_UNSPECIFIED ?
800  in->color_range : s->user_rng;
801  if (rgb_sz != s->rgb_sz) {
803  int uvw = in->width >> desc->log2_chroma_w;
804 
805  av_freep(&s->rgb[0]);
806  av_freep(&s->rgb[1]);
807  av_freep(&s->rgb[2]);
808  s->rgb_sz = 0;
809  av_freep(&s->dither_scratch_base[0][0]);
810  av_freep(&s->dither_scratch_base[0][1]);
811  av_freep(&s->dither_scratch_base[1][0]);
812  av_freep(&s->dither_scratch_base[1][1]);
813  av_freep(&s->dither_scratch_base[2][0]);
814  av_freep(&s->dither_scratch_base[2][1]);
815 
816  s->rgb[0] = av_malloc(rgb_sz);
817  s->rgb[1] = av_malloc(rgb_sz);
818  s->rgb[2] = av_malloc(rgb_sz);
819  s->dither_scratch_base[0][0] =
820  av_malloc(sizeof(*s->dither_scratch_base[0][0]) * (in->width + 4));
821  s->dither_scratch_base[0][1] =
822  av_malloc(sizeof(*s->dither_scratch_base[0][1]) * (in->width + 4));
823  s->dither_scratch_base[1][0] =
824  av_malloc(sizeof(*s->dither_scratch_base[1][0]) * (uvw + 4));
825  s->dither_scratch_base[1][1] =
826  av_malloc(sizeof(*s->dither_scratch_base[1][1]) * (uvw + 4));
827  s->dither_scratch_base[2][0] =
828  av_malloc(sizeof(*s->dither_scratch_base[2][0]) * (uvw + 4));
829  s->dither_scratch_base[2][1] =
830  av_malloc(sizeof(*s->dither_scratch_base[2][1]) * (uvw + 4));
831  s->dither_scratch[0][0] = &s->dither_scratch_base[0][0][1];
832  s->dither_scratch[0][1] = &s->dither_scratch_base[0][1][1];
833  s->dither_scratch[1][0] = &s->dither_scratch_base[1][0][1];
834  s->dither_scratch[1][1] = &s->dither_scratch_base[1][1][1];
835  s->dither_scratch[2][0] = &s->dither_scratch_base[2][0][1];
836  s->dither_scratch[2][1] = &s->dither_scratch_base[2][1][1];
837  if (!s->rgb[0] || !s->rgb[1] || !s->rgb[2] ||
838  !s->dither_scratch_base[0][0] || !s->dither_scratch_base[0][1] ||
839  !s->dither_scratch_base[1][0] || !s->dither_scratch_base[1][1] ||
840  !s->dither_scratch_base[2][0] || !s->dither_scratch_base[2][1]) {
841  uninit(ctx);
842  return AVERROR(ENOMEM);
843  }
844  s->rgb_sz = rgb_sz;
845  }
846  res = create_filtergraph(ctx, in, out);
847  if (res < 0)
848  return res;
849  s->rgb_stride = rgb_stride / sizeof(int16_t);
850  td.in = in;
851  td.out = out;
852  td.in_linesize[0] = in->linesize[0];
853  td.in_linesize[1] = in->linesize[1];
854  td.in_linesize[2] = in->linesize[2];
855  td.out_linesize[0] = out->linesize[0];
856  td.out_linesize[1] = out->linesize[1];
857  td.out_linesize[2] = out->linesize[2];
860  if (s->yuv2yuv_passthrough) {
861  res = av_frame_copy(out, in);
862  if (res < 0)
863  return res;
864  } else {
865  ctx->internal->execute(ctx, convert, &td, NULL,
866  FFMIN((in->height + 1) >> 1, ff_filter_get_nb_threads(ctx)));
867  }
868  av_frame_free(&in);
869 
870  return ff_filter_frame(outlink, out);
871 }
872 
874 {
875  static const enum AVPixelFormat pix_fmts[] = {
881  };
882  int res;
883  ColorSpaceContext *s = ctx->priv;
885 
886  if (!formats)
887  return AVERROR(ENOMEM);
888  if (s->user_format == AV_PIX_FMT_NONE)
889  return ff_set_common_formats(ctx, formats);
890  res = ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
891  if (res < 0)
892  return res;
893  formats = NULL;
894  res = ff_add_format(&formats, s->user_format);
895  if (res < 0)
896  return res;
897 
898  return ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
899 }
900 
901 static int config_props(AVFilterLink *outlink)
902 {
903  AVFilterContext *ctx = outlink->dst;
904  AVFilterLink *inlink = outlink->src->inputs[0];
905 
906  if (inlink->w % 2 || inlink->h % 2) {
907  av_log(ctx, AV_LOG_ERROR, "Invalid odd size (%dx%d)\n",
908  inlink->w, inlink->h);
909  return AVERROR_PATCHWELCOME;
910  }
911 
912  outlink->w = inlink->w;
913  outlink->h = inlink->h;
914  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
915  outlink->time_base = inlink->time_base;
916 
917  return 0;
918 }
919 
920 #define OFFSET(x) offsetof(ColorSpaceContext, x)
921 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
922 #define ENUM(x, y, z) { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, z }
923 
924 static const AVOption colorspace_options[] = {
925  { "all", "Set all color properties together",
926  OFFSET(user_all), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
927  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
928  ENUM("bt470m", CS_BT470M, "all"),
929  ENUM("bt470bg", CS_BT470BG, "all"),
930  ENUM("bt601-6-525", CS_BT601_6_525, "all"),
931  ENUM("bt601-6-625", CS_BT601_6_625, "all"),
932  ENUM("bt709", CS_BT709, "all"),
933  ENUM("smpte170m", CS_SMPTE170M, "all"),
934  ENUM("smpte240m", CS_SMPTE240M, "all"),
935  ENUM("bt2020", CS_BT2020, "all"),
936 
937  { "space", "Output colorspace",
938  OFFSET(user_csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
939  AVCOL_SPC_RGB, AVCOL_SPC_NB - 1, FLAGS, "csp"},
940  ENUM("bt709", AVCOL_SPC_BT709, "csp"),
941  ENUM("fcc", AVCOL_SPC_FCC, "csp"),
942  ENUM("bt470bg", AVCOL_SPC_BT470BG, "csp"),
943  ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
944  ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
945  ENUM("ycgco", AVCOL_SPC_YCGCO, "csp"),
946  ENUM("gbr", AVCOL_SPC_RGB, "csp"),
947  ENUM("bt2020nc", AVCOL_SPC_BT2020_NCL, "csp"),
948  ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
949 
950  { "range", "Output color range",
951  OFFSET(user_rng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
953  ENUM("tv", AVCOL_RANGE_MPEG, "rng"),
954  ENUM("mpeg", AVCOL_RANGE_MPEG, "rng"),
955  ENUM("pc", AVCOL_RANGE_JPEG, "rng"),
956  ENUM("jpeg", AVCOL_RANGE_JPEG, "rng"),
957 
958  { "primaries", "Output color primaries",
959  OFFSET(user_prm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
960  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
961  ENUM("bt709", AVCOL_PRI_BT709, "prm"),
962  ENUM("bt470m", AVCOL_PRI_BT470M, "prm"),
963  ENUM("bt470bg", AVCOL_PRI_BT470BG, "prm"),
964  ENUM("smpte170m", AVCOL_PRI_SMPTE170M, "prm"),
965  ENUM("smpte240m", AVCOL_PRI_SMPTE240M, "prm"),
966  ENUM("smpte428", AVCOL_PRI_SMPTE428, "prm"),
967  ENUM("film", AVCOL_PRI_FILM, "prm"),
968  ENUM("smpte431", AVCOL_PRI_SMPTE431, "prm"),
969  ENUM("smpte432", AVCOL_PRI_SMPTE432, "prm"),
970  ENUM("bt2020", AVCOL_PRI_BT2020, "prm"),
971  ENUM("jedec-p22", AVCOL_PRI_JEDEC_P22, "prm"),
972 
973  { "trc", "Output transfer characteristics",
974  OFFSET(user_trc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
975  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
976  ENUM("bt709", AVCOL_TRC_BT709, "trc"),
977  ENUM("bt470m", AVCOL_TRC_GAMMA22, "trc"),
978  ENUM("gamma22", AVCOL_TRC_GAMMA22, "trc"),
979  ENUM("bt470bg", AVCOL_TRC_GAMMA28, "trc"),
980  ENUM("gamma28", AVCOL_TRC_GAMMA28, "trc"),
981  ENUM("smpte170m", AVCOL_TRC_SMPTE170M, "trc"),
982  ENUM("smpte240m", AVCOL_TRC_SMPTE240M, "trc"),
983  ENUM("srgb", AVCOL_TRC_IEC61966_2_1, "trc"),
984  ENUM("iec61966-2-1", AVCOL_TRC_IEC61966_2_1, "trc"),
985  ENUM("xvycc", AVCOL_TRC_IEC61966_2_4, "trc"),
986  ENUM("iec61966-2-4", AVCOL_TRC_IEC61966_2_4, "trc"),
987  ENUM("bt2020-10", AVCOL_TRC_BT2020_10, "trc"),
988  ENUM("bt2020-12", AVCOL_TRC_BT2020_12, "trc"),
989 
990  { "format", "Output pixel format",
991  OFFSET(user_format), AV_OPT_TYPE_INT, { .i64 = AV_PIX_FMT_NONE },
993  ENUM("yuv420p", AV_PIX_FMT_YUV420P, "fmt"),
994  ENUM("yuv420p10", AV_PIX_FMT_YUV420P10, "fmt"),
995  ENUM("yuv420p12", AV_PIX_FMT_YUV420P12, "fmt"),
996  ENUM("yuv422p", AV_PIX_FMT_YUV422P, "fmt"),
997  ENUM("yuv422p10", AV_PIX_FMT_YUV422P10, "fmt"),
998  ENUM("yuv422p12", AV_PIX_FMT_YUV422P12, "fmt"),
999  ENUM("yuv444p", AV_PIX_FMT_YUV444P, "fmt"),
1000  ENUM("yuv444p10", AV_PIX_FMT_YUV444P10, "fmt"),
1001  ENUM("yuv444p12", AV_PIX_FMT_YUV444P12, "fmt"),
1002 
1003  { "fast", "Ignore primary chromaticity and gamma correction",
1004  OFFSET(fast_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 },
1005  0, 1, FLAGS },
1006 
1007  { "dither", "Dithering mode",
1008  OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = DITHER_NONE },
1009  DITHER_NONE, DITHER_NB - 1, FLAGS, "dither" },
1010  ENUM("none", DITHER_NONE, "dither"),
1011  ENUM("fsb", DITHER_FSB, "dither"),
1012 
1013  { "wpadapt", "Whitepoint adaptation method",
1014  OFFSET(wp_adapt), AV_OPT_TYPE_INT, { .i64 = WP_ADAPT_BRADFORD },
1015  WP_ADAPT_BRADFORD, NB_WP_ADAPT - 1, FLAGS, "wpadapt" },
1016  ENUM("bradford", WP_ADAPT_BRADFORD, "wpadapt"),
1017  ENUM("vonkries", WP_ADAPT_VON_KRIES, "wpadapt"),
1018  ENUM("identity", WP_ADAPT_IDENTITY, "wpadapt"),
1019 
1020  { "iall", "Set all input color properties together",
1021  OFFSET(user_iall), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
1022  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1023  { "ispace", "Input colorspace",
1024  OFFSET(user_icsp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1025  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "csp" },
1026  { "irange", "Input color range",
1027  OFFSET(user_irng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1029  { "iprimaries", "Input color primaries",
1030  OFFSET(user_iprm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1031  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1032  { "itrc", "Input transfer characteristics",
1033  OFFSET(user_itrc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1034  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1035 
1036  { NULL }
1037 };
1038 
1039 AVFILTER_DEFINE_CLASS(colorspace);
1040 
1041 static const AVFilterPad inputs[] = {
1042  {
1043  .name = "default",
1044  .type = AVMEDIA_TYPE_VIDEO,
1045  .filter_frame = filter_frame,
1046  },
1047  { NULL }
1048 };
1049 
1050 static const AVFilterPad outputs[] = {
1051  {
1052  .name = "default",
1053  .type = AVMEDIA_TYPE_VIDEO,
1054  .config_props = config_props,
1055  },
1056  { NULL }
1057 };
1058 
1060  .name = "colorspace",
1061  .description = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
1062  .init = init,
1063  .uninit = uninit,
1064  .query_formats = query_formats,
1065  .priv_size = sizeof(ColorSpaceContext),
1066  .priv_class = &colorspace_class,
1067  .inputs = inputs,
1068  .outputs = outputs,
1070 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:483
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:498
#define NULL
Definition: coverity.c:32
AVFrame * out
Definition: af_adeclick.c:488
IEC 61966-2-4.
Definition: pixfmt.h:479
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
rgb2yuv_fn rgb2yuv
int16_t yuv_offset[2][8]
static enum AVColorPrimaries default_prm[CS_NB+1]
Definition: vf_colorspace.c:86
AVOption.
Definition: opt.h:246
double yuv2rgb_dbl_coeffs[3][3]
#define ma
static void fn() rgb2yuv(uint8_t *_yuv[3], const ptrdiff_t yuv_stride[3], int16_t *rgb[3], ptrdiff_t s, int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], const int16_t yuv_offset[8])
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int * dither_scratch[3][2]
Main libavfilter public API header.
static int init(AVFilterContext *ctx)
enum AVColorTransferCharacteristic in_trc out_trc user_trc user_itrc
JEDEC P22 phosphors.
Definition: pixfmt.h:459
const char * desc
Definition: nvenc.c:68
static const AVOption colorspace_options[]
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
Definition: pixfmt.h:502
static void yuv2rgb(uint8_t *out, int ridx, int Y, int U, int V)
Definition: g2meet.c:280
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:458
int16_t yuv2rgb_coeffs[3][3][8]
ptrdiff_t in_linesize[3]
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:503
static int get_range_off(AVFilterContext *ctx, int *off, int *y_rng, int *uv_rng, enum AVColorRange rng, int depth)
SMPTE ST 431-2 (2011) / DCI P3.
Definition: pixfmt.h:457
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
static void fn() yuv2yuv(uint8_t *_dst[3], const ptrdiff_t dst_stride[3], uint8_t *_src[3], const ptrdiff_t src_stride[3], int w, int h, const int16_t c[3][3][8], const int16_t yuv_offset[2][8])
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
#define src
Definition: vp8dsp.c:254
int stride
Definition: mace.c:144
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:497
enum DitherMode dither
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:467
functionally identical to above
Definition: pixfmt.h:504
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2915
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
static const struct ColorPrimaries * get_color_primaries(enum AVColorPrimaries prm)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
const char * name
Pad name.
Definition: internal.h:60
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
void(* multiply3x3)(int16_t *data[3], ptrdiff_t stride, int w, int h, const int16_t m[3][3][8])
Definition: colorspacedsp.h:74
uint8_t
#define av_malloc(s)
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
float delta
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:496
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2848
AVFilter ff_vf_colorspace
enum Colorspace user_all user_iall
Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16.
Definition: pixfmt.h:505
enum Whitepoint wp
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:472
#define emms_c()
Definition: internal.h:55
static void uninit(AVFilterContext *ctx)
yuv2rgb_fn yuv2rgb
const struct ColorPrimaries * out_primaries
const char data[16]
Definition: mxf.c:91
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
Colorspace
Definition: vf_colorspace.c:44
ptrdiff_t out_linesize[3]
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
Not part of ABI.
Definition: pixfmt.h:523
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:519
ColorSpaceDSPContext dsp
const struct LumaCoefficients * ff_get_luma_coefficients(enum AVColorSpace csp)
Definition: colorspace.c:128
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
const struct ColorPrimaries * in_primaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:443
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
enum AVColorSpace in_csp out_csp user_csp user_icsp
ptrdiff_t rgb_stride
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:448
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
#define td
Definition: regdef.h:70
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
double rgb2yuv_dbl_coeffs[3][3]
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
void(* yuv2yuv_fn)(uint8_t *yuv_out[3], const ptrdiff_t yuv_out_stride[3], uint8_t *yuv_in[3], const ptrdiff_t yuv_in_stride[3], int w, int h, const int16_t yuv2yuv_coeffs[3][3][8], const int16_t yuv_offset[2][8])
Definition: colorspacedsp.h:40
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const struct LumaCoefficients * out_lumacoef
static const uint8_t dither[8][8]
Definition: vf_fspp.c:57
void * priv
private data for use by the filter
Definition: avfilter.h:353
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:539
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
Not part of ABI.
Definition: pixfmt.h:460
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:550
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:445
simple assert() macros that are a bit more flexible than ISO C assert().
int ff_add_format(AVFilterFormats **avff, int64_t fmt)
Add fmt to the list of media formats contained in *avff.
Definition: formats.c:337
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:455
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
uint8_t bits
Definition: vp3data.h:202
static int create_filtergraph(AVFilterContext *ctx, const AVFrame *in, const AVFrame *out)
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:792
static const AVFilterPad inputs[]
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2867
#define supported_format(d)
static void apply_lut(int16_t *buf[3], ptrdiff_t stride, int w, int h, const int16_t *lut)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
struct PrimaryCoefficients coeff
#define ENUM(x, y, z)
static const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB]
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
#define FFMIN(a, b)
Definition: common.h:96
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
colour filters using Illuminant C
Definition: pixfmt.h:453
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
uint8_t w
Definition: llviddspenc.c:38
static enum AVColorSpace default_csp[CS_NB+1]
Definition: vf_colorspace.c:99
AVFrame * m
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:507
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:450
static const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]
AVFormatContext * ctx
Definition: movenc.c:48
static const AVFilterPad outputs[]
int16_t * rgb[3]
int16_t lrgb2lrgb_coeffs[3][3][8]
#define s(width, name)
Definition: cbs_vp9.c:257
int n
Definition: avisynth_c.h:760
#define FLAGS
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:501
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:522
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:288
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
enum AVColorPrimaries in_prm out_prm user_prm user_iprm
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:368
also ITU-R BT1361
Definition: pixfmt.h:469
static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt, enum Whitepoint src, enum Whitepoint dst)
void ff_fill_rgb2yuv_table(const struct LumaCoefficients *coeffs, double rgb2yuv[3][3])
Definition: colorspace.c:141
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:474
static int query_formats(AVFilterContext *ctx)
int16_t yuv2yuv_coeffs[3][3][8]
functionally identical to above
Definition: pixfmt.h:452
Used for passing data between threads.
Definition: af_adeclick.c:487
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
static const int16_t alpha[]
Definition: ilbcdata.h:55
rgb2yuv_fsb_fn rgb2yuv_fsb
WhitepointAdaptation
Definition: vf_colorspace.c:65
yuv2yuv_fn yuv2yuv[NB_BPP][NB_BPP][NB_SS]
Definition: colorspacedsp.h:70
static int fill_gamma_table(ColorSpaceContext *s)
void * buf
Definition: avisynth_c.h:766
Whitepoint
Definition: vf_colorspace.c:57
rgb2yuv_fn rgb2yuv[NB_BPP][NB_SS]
Definition: colorspacedsp.h:65
int * dither_scratch_base[3][2]
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
yuv2rgb_fn yuv2rgb[NB_BPP][NB_SS]
Definition: colorspacedsp.h:62
Not part of ABI.
Definition: pixfmt.h:489
const struct LumaCoefficients * in_lumacoef
void ff_matrix_invert_3x3(const double in[3][3], double out[3][3])
Definition: colorspace.c:27
const char * name
Filter name.
Definition: avfilter.h:148
void(* rgb2yuv_fsb_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], int16_t *rgb[3], ptrdiff_t rgb_stride, int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], const int16_t yuv_offset[8], int *rnd[3][2])
Definition: colorspacedsp.h:35
static enum AVColorTransferCharacteristic default_trc[CS_NB+1]
Definition: vf_colorspace.c:73
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define flags(name, subs,...)
Definition: cbs_av1.c:564
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:521
void(* rgb2yuv_fn)(uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], int16_t *rgb[3], ptrdiff_t rgb_stride, int w, int h, const int16_t rgb2yuv_coeffs[3][3][8], const int16_t yuv_offset[8])
Definition: colorspacedsp.h:31
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:481
enum WhitepointAdaptation wp_adapt
enum AVColorRange in_rng out_rng user_rng user_irng
void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp)
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:2891
also ITU-R BT470BG
Definition: pixfmt.h:473
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
void(* yuv2rgb_fn)(int16_t *rgb[3], ptrdiff_t rgb_stride, uint8_t *yuv[3], const ptrdiff_t yuv_stride[3], int w, int h, const int16_t yuv2rgb_coeffs[3][3][8], const int16_t yuv_offset[8])
Definition: colorspacedsp.h:27
enum AVPixelFormat in_format user_format
static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
avfilter_execute_func * execute
Definition: internal.h:155
static const struct TransferCharacteristics * get_transfer_characteristics(enum AVColorTransferCharacteristic trc)
int16_t rgb2yuv_coeffs[3][3][8]
pixel format definitions
void ff_matrix_mul_3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
Definition: colorspace.c:54
const struct TransferCharacteristics * in_txchr
const struct TransferCharacteristics * out_txchr
A list of supported formats for one end of a filter link.
Definition: formats.h:64
#define lrint
Definition: tablegen.h:53
enum AVColorPrimaries color_primaries
Definition: frame.h:541
An instance of a filter.
Definition: avfilter.h:338
AVFILTER_DEFINE_CLASS(colorspace)
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:482
static const struct WhitepointCoefficients whitepoint_coefficients[WP_NB]
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:451
ITU-R BT2020.
Definition: pixfmt.h:454
int height
Definition: frame.h:353
FILE * out
Definition: movenc.c:54
#define av_freep(p)
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:543
AVFrame * in
Definition: af_afftdn.c:1082
formats
Definition: signature.h:48
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2438
AVFilterLink * inlink
Definition: vf_blend.c:56
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
static int filter_frame(AVFilterLink *link, AVFrame *in)
static int config_props(AVFilterLink *outlink)
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
rgb2yuv_fsb_fn rgb2yuv_fsb[NB_BPP][NB_SS]
Definition: colorspacedsp.h:67
Not part of ABI.
Definition: pixfmt.h:513
DitherMode
Definition: vf_colorspace.c:38
yuv2yuv_fn yuv2yuv
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
void ff_fill_rgb2xyz_table(const struct PrimaryCoefficients *coeffs, const struct WhitepointCoefficients *wp, double rgb2xyz[3][3])
Definition: colorspace.c:68
AVFrame * o
#define OFFSET(x)
static uint8_t tmp[11]
Definition: aes_ctr.c:26