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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 
37 enum DitherMode {
41 };
42 
43 enum Colorspace {
54 };
55 
56 enum Whitepoint {
61 };
62 
69 };
70 
82 };
83 
84 static const enum AVColorPrimaries default_prm[CS_NB + 1] = {
95 };
96 
97 static const enum AVColorSpace default_csp[CS_NB + 1] = {
108 };
109 
112  double xr, yr, xg, yg, xb, yb;
113 };
114 
116  double alpha, beta, gamma, delta;
117 };
118 
120  double cr, cg, cb;
121 };
122 
124  double xw, yw;
125 };
126 
127 typedef struct ColorSpaceContext {
128  const AVClass *class;
129 
131 
132  enum Colorspace user_all, user_iall;
133  enum AVColorSpace in_csp, out_csp, user_csp, user_icsp;
134  enum AVColorRange in_rng, out_rng, user_rng, user_irng;
135  enum AVColorTransferCharacteristic in_trc, out_trc, user_trc, user_itrc;
136  enum AVColorPrimaries in_prm, out_prm, user_prm, user_iprm;
137  enum AVPixelFormat in_format, user_format;
141 
142  int16_t *rgb[3];
143  ptrdiff_t rgb_stride;
144  unsigned rgb_sz;
146 
149  DECLARE_ALIGNED(16, int16_t, lrgb2lrgb_coeffs)[3][3][8];
150 
153  int16_t *lin_lut, *delin_lut;
154 
157  DECLARE_ALIGNED(16, int16_t, yuv2rgb_coeffs)[3][3][8];
158  DECLARE_ALIGNED(16, int16_t, rgb2yuv_coeffs)[3][3][8];
159  DECLARE_ALIGNED(16, int16_t, yuv2yuv_coeffs)[3][3][8];
160  DECLARE_ALIGNED(16, int16_t, yuv_offset)[2 /* in, out */][8];
167 
170 
171 // FIXME deal with odd width/heights
172 // FIXME faster linearize/delinearize implementation (integer pow)
173 // FIXME bt2020cl support (linearization between yuv/rgb step instead of between rgb/xyz)
174 // FIXME test that the values in (de)lin_lut don't exceed their container storage
175 // type size (only useful if we keep the LUT and don't move to fast integer pow)
176 // FIXME dithering if bitdepth goes down?
177 // FIXME bitexact for fate integration?
178 
179 static const double ycgco_matrix[3][3] =
180 {
181  { 0.25, 0.5, 0.25 },
182  { -0.25, 0.5, -0.25 },
183  { 0.5, 0, -0.5 },
184 };
185 
186 /*
187  * All constants explained in e.g. https://linuxtv.org/downloads/v4l-dvb-apis/ch02s06.html
188  * The older ones (bt470bg/m) are also explained in their respective ITU docs
189  * (e.g. https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.470-5-199802-S!!PDF-E.pdf)
190  * whereas the newer ones can typically be copied directly from wikipedia :)
191  */
193  [AVCOL_SPC_FCC] = { 0.30, 0.59, 0.11 },
194  [AVCOL_SPC_BT470BG] = { 0.299, 0.587, 0.114 },
195  [AVCOL_SPC_SMPTE170M] = { 0.299, 0.587, 0.114 },
196  [AVCOL_SPC_BT709] = { 0.2126, 0.7152, 0.0722 },
197  [AVCOL_SPC_SMPTE240M] = { 0.212, 0.701, 0.087 },
198  [AVCOL_SPC_YCOCG] = { 0.25, 0.5, 0.25 },
199  [AVCOL_SPC_BT2020_NCL] = { 0.2627, 0.6780, 0.0593 },
200  [AVCOL_SPC_BT2020_CL] = { 0.2627, 0.6780, 0.0593 },
201 };
202 
204 {
205  const struct LumaCoefficients *coeffs;
206 
207  if (csp >= AVCOL_SPC_NB)
208  return NULL;
209  coeffs = &luma_coefficients[csp];
210  if (!coeffs->cr)
211  return NULL;
212 
213  return coeffs;
214 }
215 
216 static void fill_rgb2yuv_table(const struct LumaCoefficients *coeffs,
217  double rgb2yuv[3][3])
218 {
219  double bscale, rscale;
220 
221  // special ycgco matrix
222  if (coeffs->cr == 0.25 && coeffs->cg == 0.5 && coeffs->cb == 0.25) {
223  memcpy(rgb2yuv, ycgco_matrix, sizeof(double) * 9);
224  return;
225  }
226 
227  rgb2yuv[0][0] = coeffs->cr;
228  rgb2yuv[0][1] = coeffs->cg;
229  rgb2yuv[0][2] = coeffs->cb;
230  bscale = 0.5 / (coeffs->cb - 1.0);
231  rscale = 0.5 / (coeffs->cr - 1.0);
232  rgb2yuv[1][0] = bscale * coeffs->cr;
233  rgb2yuv[1][1] = bscale * coeffs->cg;
234  rgb2yuv[1][2] = 0.5;
235  rgb2yuv[2][0] = 0.5;
236  rgb2yuv[2][1] = rscale * coeffs->cg;
237  rgb2yuv[2][2] = rscale * coeffs->cb;
238 }
239 
240 // FIXME I'm pretty sure gamma22/28 also have a linear toe slope, but I can't
241 // find any actual tables that document their real values...
242 // See http://www.13thmonkey.org/~boris/gammacorrection/ first graph why it matters
244  [AVCOL_TRC_BT709] = { 1.099, 0.018, 0.45, 4.5 },
245  [AVCOL_TRC_GAMMA22] = { 1.0, 0.0, 1.0 / 2.2, 0.0 },
246  [AVCOL_TRC_GAMMA28] = { 1.0, 0.0, 1.0 / 2.8, 0.0 },
247  [AVCOL_TRC_SMPTE170M] = { 1.099, 0.018, 0.45, 4.5 },
248  [AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
249  [AVCOL_TRC_IEC61966_2_1] = { 1.055, 0.0031308, 1.0 / 2.4, 12.92 },
250  [AVCOL_TRC_IEC61966_2_4] = { 1.099, 0.018, 0.45, 4.5 },
251  [AVCOL_TRC_BT2020_10] = { 1.099, 0.018, 0.45, 4.5 },
252  [AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
253 };
254 
255 static const struct TransferCharacteristics *
257 {
258  const struct TransferCharacteristics *coeffs;
259 
260  if (trc >= AVCOL_TRC_NB)
261  return NULL;
262  coeffs = &transfer_characteristics[trc];
263  if (!coeffs->alpha)
264  return NULL;
265 
266  return coeffs;
267 }
268 
270  [WP_D65] = { 0.3127, 0.3290 },
271  [WP_C] = { 0.3100, 0.3160 },
272  [WP_DCI] = { 0.3140, 0.3510 },
273 };
274 
276  [AVCOL_PRI_BT709] = { WP_D65, 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 },
277  [AVCOL_PRI_BT470M] = { WP_C, 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 },
278  [AVCOL_PRI_BT470BG] = { WP_D65, 0.640, 0.330, 0.290, 0.600, 0.150, 0.060,},
279  [AVCOL_PRI_SMPTE170M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
280  [AVCOL_PRI_SMPTE240M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
281  [AVCOL_PRI_SMPTE431] = { WP_DCI, 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 },
282  [AVCOL_PRI_SMPTE432] = { WP_D65, 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 },
283  [AVCOL_PRI_FILM] = { WP_C, 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 },
284  [AVCOL_PRI_BT2020] = { WP_D65, 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 },
285 };
286 
288 {
289  const struct ColorPrimaries *coeffs;
290 
291  if (prm >= AVCOL_PRI_NB)
292  return NULL;
293  coeffs = &color_primaries[prm];
294  if (!coeffs->xr)
295  return NULL;
296 
297  return coeffs;
298 }
299 
300 static void invert_matrix3x3(const double in[3][3], double out[3][3])
301 {
302  double m00 = in[0][0], m01 = in[0][1], m02 = in[0][2],
303  m10 = in[1][0], m11 = in[1][1], m12 = in[1][2],
304  m20 = in[2][0], m21 = in[2][1], m22 = in[2][2];
305  int i, j;
306  double det;
307 
308  out[0][0] = (m11 * m22 - m21 * m12);
309  out[0][1] = -(m01 * m22 - m21 * m02);
310  out[0][2] = (m01 * m12 - m11 * m02);
311  out[1][0] = -(m10 * m22 - m20 * m12);
312  out[1][1] = (m00 * m22 - m20 * m02);
313  out[1][2] = -(m00 * m12 - m10 * m02);
314  out[2][0] = (m10 * m21 - m20 * m11);
315  out[2][1] = -(m00 * m21 - m20 * m01);
316  out[2][2] = (m00 * m11 - m10 * m01);
317 
318  det = m00 * out[0][0] + m10 * out[0][1] + m20 * out[0][2];
319  det = 1.0 / det;
320 
321  for (i = 0; i < 3; i++) {
322  for (j = 0; j < 3; j++)
323  out[i][j] *= det;
324  }
325 }
326 
328 {
329  int n;
330  double in_alpha = s->in_txchr->alpha, in_beta = s->in_txchr->beta;
331  double in_gamma = s->in_txchr->gamma, in_delta = s->in_txchr->delta;
332  double in_ialpha = 1.0 / in_alpha, in_igamma = 1.0 / in_gamma, in_idelta = 1.0 / in_delta;
333  double out_alpha = s->out_txchr->alpha, out_beta = s->out_txchr->beta;
334  double out_gamma = s->out_txchr->gamma, out_delta = s->out_txchr->delta;
335 
336  s->lin_lut = av_malloc(sizeof(*s->lin_lut) * 32768 * 2);
337  if (!s->lin_lut)
338  return AVERROR(ENOMEM);
339  s->delin_lut = &s->lin_lut[32768];
340  for (n = 0; n < 32768; n++) {
341  double v = (n - 2048.0) / 28672.0, d, l;
342 
343  // delinearize
344  if (v <= -out_beta) {
345  d = -out_alpha * pow(-v, out_gamma) + (out_alpha - 1.0);
346  } else if (v < out_beta) {
347  d = out_delta * v;
348  } else {
349  d = out_alpha * pow(v, out_gamma) - (out_alpha - 1.0);
350  }
351  s->delin_lut[n] = av_clip_int16(lrint(d * 28672.0));
352 
353  // linearize
354  if (v <= -in_beta) {
355  l = -pow((1.0 - in_alpha - v) * in_ialpha, in_igamma);
356  } else if (v < in_beta) {
357  l = v * in_idelta;
358  } else {
359  l = pow((v + in_alpha - 1.0) * in_ialpha, in_igamma);
360  }
361  s->lin_lut[n] = av_clip_int16(lrint(l * 28672.0));
362  }
363 
364  return 0;
365 }
366 
367 /*
368  * see e.g. http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
369  */
370 static void fill_rgb2xyz_table(const struct ColorPrimaries *coeffs,
371  double rgb2xyz[3][3])
372 {
373  const struct WhitepointCoefficients *wp = &whitepoint_coefficients[coeffs->wp];
374  double i[3][3], sr, sg, sb, zw;
375 
376  rgb2xyz[0][0] = coeffs->xr / coeffs->yr;
377  rgb2xyz[0][1] = coeffs->xg / coeffs->yg;
378  rgb2xyz[0][2] = coeffs->xb / coeffs->yb;
379  rgb2xyz[1][0] = rgb2xyz[1][1] = rgb2xyz[1][2] = 1.0;
380  rgb2xyz[2][0] = (1.0 - coeffs->xr - coeffs->yr) / coeffs->yr;
381  rgb2xyz[2][1] = (1.0 - coeffs->xg - coeffs->yg) / coeffs->yg;
382  rgb2xyz[2][2] = (1.0 - coeffs->xb - coeffs->yb) / coeffs->yb;
383  invert_matrix3x3(rgb2xyz, i);
384  zw = 1.0 - wp->xw - wp->yw;
385  sr = i[0][0] * wp->xw + i[0][1] * wp->yw + i[0][2] * zw;
386  sg = i[1][0] * wp->xw + i[1][1] * wp->yw + i[1][2] * zw;
387  sb = i[2][0] * wp->xw + i[2][1] * wp->yw + i[2][2] * zw;
388  rgb2xyz[0][0] *= sr;
389  rgb2xyz[0][1] *= sg;
390  rgb2xyz[0][2] *= sb;
391  rgb2xyz[1][0] *= sr;
392  rgb2xyz[1][1] *= sg;
393  rgb2xyz[1][2] *= sb;
394  rgb2xyz[2][0] *= sr;
395  rgb2xyz[2][1] *= sg;
396  rgb2xyz[2][2] *= sb;
397 }
398 
399 static void mul3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
400 {
401  int m, n;
402 
403  for (m = 0; m < 3; m++)
404  for (n = 0; n < 3; n++)
405  dst[m][n] = src2[m][0] * src1[0][n] +
406  src2[m][1] * src1[1][n] +
407  src2[m][2] * src1[2][n];
408 }
409 
410 /*
411  * See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html
412  * This function uses the Bradford mechanism.
413  */
414 static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt,
415  enum Whitepoint src, enum Whitepoint dst)
416 {
417  static const double ma_tbl[NB_WP_ADAPT_NON_IDENTITY][3][3] = {
418  [WP_ADAPT_BRADFORD] = {
419  { 0.8951, 0.2664, -0.1614 },
420  { -0.7502, 1.7135, 0.0367 },
421  { 0.0389, -0.0685, 1.0296 },
422  }, [WP_ADAPT_VON_KRIES] = {
423  { 0.40024, 0.70760, -0.08081 },
424  { -0.22630, 1.16532, 0.04570 },
425  { 0.00000, 0.00000, 0.91822 },
426  },
427  };
428  const double (*ma)[3] = ma_tbl[wp_adapt];
429  const struct WhitepointCoefficients *wp_src = &whitepoint_coefficients[src];
430  double zw_src = 1.0 - wp_src->xw - wp_src->yw;
431  const struct WhitepointCoefficients *wp_dst = &whitepoint_coefficients[dst];
432  double zw_dst = 1.0 - wp_dst->xw - wp_dst->yw;
433  double mai[3][3], fac[3][3], tmp[3][3];
434  double rs, gs, bs, rd, gd, bd;
435 
436  invert_matrix3x3(ma, mai);
437  rs = ma[0][0] * wp_src->xw + ma[0][1] * wp_src->yw + ma[0][2] * zw_src;
438  gs = ma[1][0] * wp_src->xw + ma[1][1] * wp_src->yw + ma[1][2] * zw_src;
439  bs = ma[2][0] * wp_src->xw + ma[2][1] * wp_src->yw + ma[2][2] * zw_src;
440  rd = ma[0][0] * wp_dst->xw + ma[0][1] * wp_dst->yw + ma[0][2] * zw_dst;
441  gd = ma[1][0] * wp_dst->xw + ma[1][1] * wp_dst->yw + ma[1][2] * zw_dst;
442  bd = ma[2][0] * wp_dst->xw + ma[2][1] * wp_dst->yw + ma[2][2] * zw_dst;
443  fac[0][0] = rd / rs;
444  fac[1][1] = gd / gs;
445  fac[2][2] = bd / bs;
446  fac[0][1] = fac[0][2] = fac[1][0] = fac[1][2] = fac[2][0] = fac[2][1] = 0.0;
447  mul3x3(tmp, ma, fac);
448  mul3x3(out, tmp, mai);
449 }
450 
451 static void apply_lut(int16_t *buf[3], ptrdiff_t stride,
452  int w, int h, const int16_t *lut)
453 {
454  int y, x, n;
455 
456  for (n = 0; n < 3; n++) {
457  int16_t *data = buf[n];
458 
459  for (y = 0; y < h; y++) {
460  for (x = 0; x < w; x++)
461  data[x] = lut[av_clip_uintp2(2048 + data[x], 15)];
462 
463  data += stride;
464  }
465  }
466 }
467 
468 struct ThreadData {
469  AVFrame *in, *out;
470  ptrdiff_t in_linesize[3], out_linesize[3];
472 };
473 
474 static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
475 {
476  struct ThreadData *td = data;
477  ColorSpaceContext *s = ctx->priv;
478  uint8_t *in_data[3], *out_data[3];
479  int16_t *rgb[3];
480  int h_in = (td->in->height + 1) >> 1;
481  int h1 = 2 * (job_nr * h_in / n_jobs), h2 = 2 * ((job_nr + 1) * h_in / n_jobs);
482  int w = td->in->width, h = h2 - h1;
483 
484  in_data[0] = td->in->data[0] + td->in_linesize[0] * h1;
485  in_data[1] = td->in->data[1] + td->in_linesize[1] * (h1 >> td->in_ss_h);
486  in_data[2] = td->in->data[2] + td->in_linesize[2] * (h1 >> td->in_ss_h);
487  out_data[0] = td->out->data[0] + td->out_linesize[0] * h1;
488  out_data[1] = td->out->data[1] + td->out_linesize[1] * (h1 >> td->out_ss_h);
489  out_data[2] = td->out->data[2] + td->out_linesize[2] * (h1 >> td->out_ss_h);
490  rgb[0] = s->rgb[0] + s->rgb_stride * h1;
491  rgb[1] = s->rgb[1] + s->rgb_stride * h1;
492  rgb[2] = s->rgb[2] + s->rgb_stride * h1;
493 
494  // FIXME for simd, also make sure we do pictures with negative stride
495  // top-down so we don't overwrite lines with padding of data before it
496  // in the same buffer (same as swscale)
497 
498  if (s->yuv2yuv_fastmode) {
499  // FIXME possibly use a fast mode in case only the y range changes?
500  // since in that case, only the diagonal entries in yuv2yuv_coeffs[]
501  // are non-zero
502  s->yuv2yuv(out_data, td->out_linesize, in_data, td->in_linesize, w, h,
503  s->yuv2yuv_coeffs, s->yuv_offset);
504  } else {
505  // FIXME maybe (for caching effciency) do pipeline per-line instead of
506  // full buffer per function? (Or, since yuv2rgb requires 2 lines: per
507  // 2 lines, for yuv420.)
508  /*
509  * General design:
510  * - yuv2rgb converts from whatever range the input was ([16-235/240] or
511  * [0,255] or the 10/12bpp equivalents thereof) to an integer version
512  * of RGB in psuedo-restricted 15+sign bits. That means that the float
513  * range [0.0,1.0] is in [0,28762], and the remainder of the int16_t
514  * range is used for overflow/underflow outside the representable
515  * range of this RGB type. rgb2yuv is the exact opposite.
516  * - gamma correction is done using a LUT since that appears to work
517  * fairly fast.
518  * - If the input is chroma-subsampled (420/422), the yuv2rgb conversion
519  * (or rgb2yuv conversion) uses nearest-neighbour sampling to read
520  * read chroma pixels at luma resolution. If you want some more fancy
521  * filter, you can use swscale to convert to yuv444p.
522  * - all coefficients are 14bit (so in the [-2.0,2.0] range).
523  */
524  s->yuv2rgb(rgb, s->rgb_stride, in_data, td->in_linesize, w, h,
525  s->yuv2rgb_coeffs, s->yuv_offset[0]);
526  if (!s->rgb2rgb_passthrough) {
527  apply_lut(rgb, s->rgb_stride, w, h, s->lin_lut);
528  if (!s->lrgb2lrgb_passthrough)
529  s->dsp.multiply3x3(rgb, s->rgb_stride, w, h, s->lrgb2lrgb_coeffs);
530  apply_lut(rgb, s->rgb_stride, w, h, s->delin_lut);
531  }
532  if (s->dither == DITHER_FSB) {
533  s->rgb2yuv_fsb(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
535  } else {
536  s->rgb2yuv(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
537  s->rgb2yuv_coeffs, s->yuv_offset[1]);
538  }
539  }
540 
541  return 0;
542 }
543 
544 static int get_range_off(AVFilterContext *ctx, int *off,
545  int *y_rng, int *uv_rng,
546  enum AVColorRange rng, int depth)
547 {
548  switch (rng) {
550  ColorSpaceContext *s = ctx->priv;
551 
552  if (!s->did_warn_range) {
553  av_log(ctx, AV_LOG_WARNING, "Input range not set, assuming tv/mpeg\n");
554  s->did_warn_range = 1;
555  }
556  }
557  // fall-through
558  case AVCOL_RANGE_MPEG:
559  *off = 16 << (depth - 8);
560  *y_rng = 219 << (depth - 8);
561  *uv_rng = 224 << (depth - 8);
562  break;
563  case AVCOL_RANGE_JPEG:
564  *off = 0;
565  *y_rng = *uv_rng = (256 << (depth - 8)) - 1;
566  break;
567  default:
568  return AVERROR(EINVAL);
569  }
570 
571  return 0;
572 }
573 
575  const AVFrame *in, const AVFrame *out)
576 {
577  ColorSpaceContext *s = ctx->priv;
578  const AVPixFmtDescriptor *in_desc = av_pix_fmt_desc_get(in->format);
579  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(out->format);
580  int emms = 0, m, n, o, res, fmt_identical, redo_yuv2rgb = 0, redo_rgb2yuv = 0;
581 
582 #define supported_depth(d) ((d) == 8 || (d) == 10 || (d) == 12)
583 #define supported_subsampling(lcw, lch) \
584  (((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
585 #define supported_format(d) \
586  ((d) != NULL && (d)->nb_components == 3 && \
587  !((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
588  supported_depth((d)->comp[0].depth) && \
589  supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))
590 
591  if (!supported_format(in_desc)) {
592  av_log(ctx, AV_LOG_ERROR,
593  "Unsupported input format %d (%s) or bitdepth (%d)\n",
595  in_desc ? in_desc->comp[0].depth : -1);
596  return AVERROR(EINVAL);
597  }
598  if (!supported_format(out_desc)) {
599  av_log(ctx, AV_LOG_ERROR,
600  "Unsupported output format %d (%s) or bitdepth (%d)\n",
601  out->format, av_get_pix_fmt_name(out->format),
602  out_desc ? out_desc->comp[0].depth : -1);
603  return AVERROR(EINVAL);
604  }
605 
606  if (in->color_primaries != s->in_prm) s->in_primaries = NULL;
607  if (out->color_primaries != s->out_prm) s->out_primaries = NULL;
608  if (in->color_trc != s->in_trc) s->in_txchr = NULL;
609  if (out->color_trc != s->out_trc) s->out_txchr = NULL;
610  if (in->colorspace != s->in_csp ||
611  in->color_range != s->in_rng) s->in_lumacoef = NULL;
612  if (out->colorspace != s->out_csp ||
613  out->color_range != s->out_rng) s->out_lumacoef = NULL;
614 
615  if (!s->out_primaries || !s->in_primaries) {
616  s->in_prm = in->color_primaries;
617  if (s->user_iall != CS_UNSPECIFIED)
618  s->in_prm = default_prm[FFMIN(s->user_iall, CS_NB)];
620  s->in_prm = s->user_iprm;
621  s->in_primaries = get_color_primaries(s->in_prm);
622  if (!s->in_primaries) {
623  av_log(ctx, AV_LOG_ERROR,
624  "Unsupported input primaries %d (%s)\n",
625  s->in_prm, av_color_primaries_name(s->in_prm));
626  return AVERROR(EINVAL);
627  }
628  s->out_prm = out->color_primaries;
629  s->out_primaries = get_color_primaries(s->out_prm);
630  if (!s->out_primaries) {
631  if (s->out_prm == AVCOL_PRI_UNSPECIFIED) {
632  if (s->user_all == CS_UNSPECIFIED) {
633  av_log(ctx, AV_LOG_ERROR, "Please specify output primaries\n");
634  } else {
635  av_log(ctx, AV_LOG_ERROR,
636  "Unsupported output color property %d\n", s->user_all);
637  }
638  } else {
639  av_log(ctx, AV_LOG_ERROR,
640  "Unsupported output primaries %d (%s)\n",
641  s->out_prm, av_color_primaries_name(s->out_prm));
642  }
643  return AVERROR(EINVAL);
644  }
646  sizeof(*s->in_primaries));
647  if (!s->lrgb2lrgb_passthrough) {
648  double rgb2xyz[3][3], xyz2rgb[3][3], rgb2rgb[3][3];
649 
650  fill_rgb2xyz_table(s->out_primaries, rgb2xyz);
651  invert_matrix3x3(rgb2xyz, xyz2rgb);
652  fill_rgb2xyz_table(s->in_primaries, rgb2xyz);
653  if (s->out_primaries->wp != s->in_primaries->wp &&
654  s->wp_adapt != WP_ADAPT_IDENTITY) {
655  double wpconv[3][3], tmp[3][3];
656 
658  s->out_primaries->wp);
659  mul3x3(tmp, rgb2xyz, wpconv);
660  mul3x3(rgb2rgb, tmp, xyz2rgb);
661  } else {
662  mul3x3(rgb2rgb, rgb2xyz, xyz2rgb);
663  }
664  for (m = 0; m < 3; m++)
665  for (n = 0; n < 3; n++) {
666  s->lrgb2lrgb_coeffs[m][n][0] = lrint(16384.0 * rgb2rgb[m][n]);
667  for (o = 1; o < 8; o++)
668  s->lrgb2lrgb_coeffs[m][n][o] = s->lrgb2lrgb_coeffs[m][n][0];
669  }
670 
671  emms = 1;
672  }
673  }
674 
675  if (!s->in_txchr) {
676  av_freep(&s->lin_lut);
677  s->in_trc = in->color_trc;
678  if (s->user_iall != CS_UNSPECIFIED)
679  s->in_trc = default_trc[FFMIN(s->user_iall, CS_NB)];
681  s->in_trc = s->user_itrc;
682  s->in_txchr = get_transfer_characteristics(s->in_trc);
683  if (!s->in_txchr) {
684  av_log(ctx, AV_LOG_ERROR,
685  "Unsupported input transfer characteristics %d (%s)\n",
686  s->in_trc, av_color_transfer_name(s->in_trc));
687  return AVERROR(EINVAL);
688  }
689  }
690 
691  if (!s->out_txchr) {
692  av_freep(&s->lin_lut);
693  s->out_trc = out->color_trc;
694  s->out_txchr = get_transfer_characteristics(s->out_trc);
695  if (!s->out_txchr) {
696  if (s->out_trc == AVCOL_TRC_UNSPECIFIED) {
697  if (s->user_all == CS_UNSPECIFIED) {
698  av_log(ctx, AV_LOG_ERROR,
699  "Please specify output transfer characteristics\n");
700  } else {
701  av_log(ctx, AV_LOG_ERROR,
702  "Unsupported output color property %d\n", s->user_all);
703  }
704  } else {
705  av_log(ctx, AV_LOG_ERROR,
706  "Unsupported output transfer characteristics %d (%s)\n",
707  s->out_trc, av_color_transfer_name(s->out_trc));
708  }
709  return AVERROR(EINVAL);
710  }
711  }
712 
714  !memcmp(s->in_txchr, s->out_txchr, sizeof(*s->in_txchr)));
715  if (!s->rgb2rgb_passthrough && !s->lin_lut) {
716  res = fill_gamma_table(s);
717  if (res < 0)
718  return res;
719  emms = 1;
720  }
721 
722  if (!s->in_lumacoef) {
723  s->in_csp = in->colorspace;
724  if (s->user_iall != CS_UNSPECIFIED)
725  s->in_csp = default_csp[FFMIN(s->user_iall, CS_NB)];
727  s->in_csp = s->user_icsp;
728  s->in_rng = in->color_range;
730  s->in_rng = s->user_irng;
731  s->in_lumacoef = get_luma_coefficients(s->in_csp);
732  if (!s->in_lumacoef) {
733  av_log(ctx, AV_LOG_ERROR,
734  "Unsupported input colorspace %d (%s)\n",
735  s->in_csp, av_color_space_name(s->in_csp));
736  return AVERROR(EINVAL);
737  }
738  redo_yuv2rgb = 1;
739  }
740 
741  if (!s->out_lumacoef) {
742  s->out_csp = out->colorspace;
743  s->out_rng = out->color_range;
744  s->out_lumacoef = get_luma_coefficients(s->out_csp);
745  if (!s->out_lumacoef) {
746  if (s->out_csp == AVCOL_SPC_UNSPECIFIED) {
747  if (s->user_all == CS_UNSPECIFIED) {
748  av_log(ctx, AV_LOG_ERROR,
749  "Please specify output transfer characteristics\n");
750  } else {
751  av_log(ctx, AV_LOG_ERROR,
752  "Unsupported output color property %d\n", s->user_all);
753  }
754  } else {
755  av_log(ctx, AV_LOG_ERROR,
756  "Unsupported output transfer characteristics %d (%s)\n",
757  s->out_csp, av_color_space_name(s->out_csp));
758  }
759  return AVERROR(EINVAL);
760  }
761  redo_rgb2yuv = 1;
762  }
763 
764  fmt_identical = in_desc->log2_chroma_h == out_desc->log2_chroma_h &&
765  in_desc->log2_chroma_w == out_desc->log2_chroma_w;
766  s->yuv2yuv_fastmode = s->rgb2rgb_passthrough && fmt_identical;
767  s->yuv2yuv_passthrough = s->yuv2yuv_fastmode && s->in_rng == s->out_rng &&
768  !memcmp(s->in_lumacoef, s->out_lumacoef,
769  sizeof(*s->in_lumacoef)) &&
770  in_desc->comp[0].depth == out_desc->comp[0].depth;
771  if (!s->yuv2yuv_passthrough) {
772  if (redo_yuv2rgb) {
773  double rgb2yuv[3][3], (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
774  int off, bits, in_rng;
775 
776  res = get_range_off(ctx, &off, &s->in_y_rng, &s->in_uv_rng,
777  s->in_rng, in_desc->comp[0].depth);
778  if (res < 0) {
779  av_log(ctx, AV_LOG_ERROR,
780  "Unsupported input color range %d (%s)\n",
781  s->in_rng, av_color_range_name(s->in_rng));
782  return res;
783  }
784  for (n = 0; n < 8; n++)
785  s->yuv_offset[0][n] = off;
786  fill_rgb2yuv_table(s->in_lumacoef, rgb2yuv);
787  invert_matrix3x3(rgb2yuv, yuv2rgb);
788  bits = 1 << (in_desc->comp[0].depth - 1);
789  for (n = 0; n < 3; n++) {
790  for (in_rng = s->in_y_rng, m = 0; m < 3; m++, in_rng = s->in_uv_rng) {
791  s->yuv2rgb_coeffs[n][m][0] = lrint(28672 * bits * yuv2rgb[n][m] / in_rng);
792  for (o = 1; o < 8; o++)
793  s->yuv2rgb_coeffs[n][m][o] = s->yuv2rgb_coeffs[n][m][0];
794  }
795  }
796  av_assert2(s->yuv2rgb_coeffs[0][1][0] == 0);
797  av_assert2(s->yuv2rgb_coeffs[2][2][0] == 0);
798  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[1][0][0]);
799  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[2][0][0]);
800  s->yuv2rgb = s->dsp.yuv2rgb[(in_desc->comp[0].depth - 8) >> 1]
801  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
802  emms = 1;
803  }
804 
805  if (redo_rgb2yuv) {
806  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
807  int off, out_rng, bits;
808 
809  res = get_range_off(ctx, &off, &s->out_y_rng, &s->out_uv_rng,
810  s->out_rng, out_desc->comp[0].depth);
811  if (res < 0) {
812  av_log(ctx, AV_LOG_ERROR,
813  "Unsupported output color range %d (%s)\n",
814  s->out_rng, av_color_range_name(s->out_rng));
815  return res;
816  }
817  for (n = 0; n < 8; n++)
818  s->yuv_offset[1][n] = off;
820  bits = 1 << (29 - out_desc->comp[0].depth);
821  for (out_rng = s->out_y_rng, n = 0; n < 3; n++, out_rng = s->out_uv_rng) {
822  for (m = 0; m < 3; m++) {
823  s->rgb2yuv_coeffs[n][m][0] = lrint(bits * out_rng * rgb2yuv[n][m] / 28672);
824  for (o = 1; o < 8; o++)
825  s->rgb2yuv_coeffs[n][m][o] = s->rgb2yuv_coeffs[n][m][0];
826  }
827  }
828  av_assert2(s->rgb2yuv_coeffs[1][2][0] == s->rgb2yuv_coeffs[2][0][0]);
829  s->rgb2yuv = s->dsp.rgb2yuv[(out_desc->comp[0].depth - 8) >> 1]
830  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
831  s->rgb2yuv_fsb = s->dsp.rgb2yuv_fsb[(out_desc->comp[0].depth - 8) >> 1]
832  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
833  emms = 1;
834  }
835 
836  if (s->yuv2yuv_fastmode && (redo_yuv2rgb || redo_rgb2yuv)) {
837  int idepth = in_desc->comp[0].depth, odepth = out_desc->comp[0].depth;
838  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
839  double (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
840  double yuv2yuv[3][3];
841  int in_rng, out_rng;
842 
843  mul3x3(yuv2yuv, yuv2rgb, rgb2yuv);
844  for (out_rng = s->out_y_rng, m = 0; m < 3; m++, out_rng = s->out_uv_rng) {
845  for (in_rng = s->in_y_rng, n = 0; n < 3; n++, in_rng = s->in_uv_rng) {
846  s->yuv2yuv_coeffs[m][n][0] =
847  lrint(16384 * yuv2yuv[m][n] * out_rng * (1 << idepth) /
848  (in_rng * (1 << odepth)));
849  for (o = 1; o < 8; o++)
850  s->yuv2yuv_coeffs[m][n][o] = s->yuv2yuv_coeffs[m][n][0];
851  }
852  }
853  av_assert2(s->yuv2yuv_coeffs[1][0][0] == 0);
854  av_assert2(s->yuv2yuv_coeffs[2][0][0] == 0);
855  s->yuv2yuv = s->dsp.yuv2yuv[(idepth - 8) >> 1][(odepth - 8) >> 1]
856  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
857  }
858  }
859 
860  if (emms)
861  emms_c();
862 
863  return 0;
864 }
865 
867 {
868  ColorSpaceContext *s = ctx->priv;
869 
871 
872  return 0;
873 }
874 
876 {
877  ColorSpaceContext *s = ctx->priv;
878 
879  av_freep(&s->rgb[0]);
880  av_freep(&s->rgb[1]);
881  av_freep(&s->rgb[2]);
882  s->rgb_sz = 0;
883  av_freep(&s->dither_scratch_base[0][0]);
884  av_freep(&s->dither_scratch_base[0][1]);
885  av_freep(&s->dither_scratch_base[1][0]);
886  av_freep(&s->dither_scratch_base[1][1]);
887  av_freep(&s->dither_scratch_base[2][0]);
888  av_freep(&s->dither_scratch_base[2][1]);
889 
890  av_freep(&s->lin_lut);
891 }
892 
893 static int filter_frame(AVFilterLink *link, AVFrame *in)
894 {
895  AVFilterContext *ctx = link->dst;
896  AVFilterLink *outlink = ctx->outputs[0];
897  ColorSpaceContext *s = ctx->priv;
898  // FIXME if yuv2yuv_passthrough, don't get a new buffer but use the
899  // input one if it is writable *OR* the actual literal values of in_*
900  // and out_* are identical (not just their respective properties)
901  AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
902  int res;
903  ptrdiff_t rgb_stride = FFALIGN(in->width * sizeof(int16_t), 32);
904  unsigned rgb_sz = rgb_stride * in->height;
905  struct ThreadData td;
906 
907  if (!out) {
908  av_frame_free(&in);
909  return AVERROR(ENOMEM);
910  }
911  res = av_frame_copy_props(out, in);
912  if (res < 0) {
913  av_frame_free(&in);
914  return res;
915  }
916 
917  out->color_primaries = s->user_prm == AVCOL_PRI_UNSPECIFIED ?
918  default_prm[FFMIN(s->user_all, CS_NB)] : s->user_prm;
919  if (s->user_trc == AVCOL_TRC_UNSPECIFIED) {
921 
922  out->color_trc = default_trc[FFMIN(s->user_all, CS_NB)];
923  if (out->color_trc == AVCOL_TRC_BT2020_10 && desc && desc->comp[0].depth >= 12)
925  } else {
926  out->color_trc = s->user_trc;
927  }
928  out->colorspace = s->user_csp == AVCOL_SPC_UNSPECIFIED ?
929  default_csp[FFMIN(s->user_all, CS_NB)] : s->user_csp;
930  out->color_range = s->user_rng == AVCOL_RANGE_UNSPECIFIED ?
931  in->color_range : s->user_rng;
932  if (rgb_sz != s->rgb_sz) {
934  int uvw = in->width >> desc->log2_chroma_w;
935 
936  av_freep(&s->rgb[0]);
937  av_freep(&s->rgb[1]);
938  av_freep(&s->rgb[2]);
939  s->rgb_sz = 0;
940  av_freep(&s->dither_scratch_base[0][0]);
941  av_freep(&s->dither_scratch_base[0][1]);
942  av_freep(&s->dither_scratch_base[1][0]);
943  av_freep(&s->dither_scratch_base[1][1]);
944  av_freep(&s->dither_scratch_base[2][0]);
945  av_freep(&s->dither_scratch_base[2][1]);
946 
947  s->rgb[0] = av_malloc(rgb_sz);
948  s->rgb[1] = av_malloc(rgb_sz);
949  s->rgb[2] = av_malloc(rgb_sz);
950  s->dither_scratch_base[0][0] =
951  av_malloc(sizeof(*s->dither_scratch_base[0][0]) * (in->width + 4));
952  s->dither_scratch_base[0][1] =
953  av_malloc(sizeof(*s->dither_scratch_base[0][1]) * (in->width + 4));
954  s->dither_scratch_base[1][0] =
955  av_malloc(sizeof(*s->dither_scratch_base[1][0]) * (uvw + 4));
956  s->dither_scratch_base[1][1] =
957  av_malloc(sizeof(*s->dither_scratch_base[1][1]) * (uvw + 4));
958  s->dither_scratch_base[2][0] =
959  av_malloc(sizeof(*s->dither_scratch_base[2][0]) * (uvw + 4));
960  s->dither_scratch_base[2][1] =
961  av_malloc(sizeof(*s->dither_scratch_base[2][1]) * (uvw + 4));
962  s->dither_scratch[0][0] = &s->dither_scratch_base[0][0][1];
963  s->dither_scratch[0][1] = &s->dither_scratch_base[0][1][1];
964  s->dither_scratch[1][0] = &s->dither_scratch_base[1][0][1];
965  s->dither_scratch[1][1] = &s->dither_scratch_base[1][1][1];
966  s->dither_scratch[2][0] = &s->dither_scratch_base[2][0][1];
967  s->dither_scratch[2][1] = &s->dither_scratch_base[2][1][1];
968  if (!s->rgb[0] || !s->rgb[1] || !s->rgb[2] ||
969  !s->dither_scratch_base[0][0] || !s->dither_scratch_base[0][1] ||
970  !s->dither_scratch_base[1][0] || !s->dither_scratch_base[1][1] ||
971  !s->dither_scratch_base[2][0] || !s->dither_scratch_base[2][1]) {
972  uninit(ctx);
973  return AVERROR(ENOMEM);
974  }
975  s->rgb_sz = rgb_sz;
976  }
977  res = create_filtergraph(ctx, in, out);
978  if (res < 0)
979  return res;
980  s->rgb_stride = rgb_stride / sizeof(int16_t);
981  td.in = in;
982  td.out = out;
983  td.in_linesize[0] = in->linesize[0];
984  td.in_linesize[1] = in->linesize[1];
985  td.in_linesize[2] = in->linesize[2];
986  td.out_linesize[0] = out->linesize[0];
987  td.out_linesize[1] = out->linesize[1];
988  td.out_linesize[2] = out->linesize[2];
991  if (s->yuv2yuv_passthrough) {
992  res = av_frame_copy(out, in);
993  if (res < 0)
994  return res;
995  } else {
996  ctx->internal->execute(ctx, convert, &td, NULL,
997  FFMIN((in->height + 1) >> 1, ff_filter_get_nb_threads(ctx)));
998  }
999  av_frame_free(&in);
1000 
1001  return ff_filter_frame(outlink, out);
1002 }
1003 
1005 {
1006  static const enum AVPixelFormat pix_fmts[] = {
1012  };
1013  int res;
1014  ColorSpaceContext *s = ctx->priv;
1016 
1017  if (!formats)
1018  return AVERROR(ENOMEM);
1019  if (s->user_format == AV_PIX_FMT_NONE)
1020  return ff_set_common_formats(ctx, formats);
1021  res = ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
1022  if (res < 0)
1023  return res;
1024  formats = NULL;
1025  res = ff_add_format(&formats, s->user_format);
1026  if (res < 0)
1027  return res;
1028 
1029  return ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
1030 }
1031 
1032 static int config_props(AVFilterLink *outlink)
1033 {
1034  AVFilterContext *ctx = outlink->dst;
1035  AVFilterLink *inlink = outlink->src->inputs[0];
1036 
1037  if (inlink->w % 2 || inlink->h % 2) {
1038  av_log(ctx, AV_LOG_ERROR, "Invalid odd size (%dx%d)\n",
1039  inlink->w, inlink->h);
1040  return AVERROR_PATCHWELCOME;
1041  }
1042 
1043  outlink->w = inlink->w;
1044  outlink->h = inlink->h;
1045  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
1046  outlink->time_base = inlink->time_base;
1047 
1048  return 0;
1049 }
1050 
1051 #define OFFSET(x) offsetof(ColorSpaceContext, x)
1052 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
1053 #define ENUM(x, y, z) { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, z }
1054 
1055 static const AVOption colorspace_options[] = {
1056  { "all", "Set all color properties together",
1057  OFFSET(user_all), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
1058  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1059  ENUM("bt470m", CS_BT470M, "all"),
1060  ENUM("bt470bg", CS_BT470BG, "all"),
1061  ENUM("bt601-6-525", CS_BT601_6_525, "all"),
1062  ENUM("bt601-6-625", CS_BT601_6_625, "all"),
1063  ENUM("bt709", CS_BT709, "all"),
1064  ENUM("smpte170m", CS_SMPTE170M, "all"),
1065  ENUM("smpte240m", CS_SMPTE240M, "all"),
1066  ENUM("bt2020", CS_BT2020, "all"),
1067 
1068  { "space", "Output colorspace",
1069  OFFSET(user_csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1070  AVCOL_SPC_RGB, AVCOL_SPC_NB - 1, FLAGS, "csp"},
1071  ENUM("bt709", AVCOL_SPC_BT709, "csp"),
1072  ENUM("fcc", AVCOL_SPC_FCC, "csp"),
1073  ENUM("bt470bg", AVCOL_SPC_BT470BG, "csp"),
1074  ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
1075  ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
1076  ENUM("ycgco", AVCOL_SPC_YCGCO, "csp"),
1077  ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
1078 
1079  { "range", "Output color range",
1080  OFFSET(user_rng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1082  ENUM("tv", AVCOL_RANGE_MPEG, "rng"),
1083  ENUM("mpeg", AVCOL_RANGE_MPEG, "rng"),
1084  ENUM("pc", AVCOL_RANGE_JPEG, "rng"),
1085  ENUM("jpeg", AVCOL_RANGE_JPEG, "rng"),
1086 
1087  { "primaries", "Output color primaries",
1088  OFFSET(user_prm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1089  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1090  ENUM("bt709", AVCOL_PRI_BT709, "prm"),
1091  ENUM("bt470m", AVCOL_PRI_BT470M, "prm"),
1092  ENUM("bt470bg", AVCOL_PRI_BT470BG, "prm"),
1093  ENUM("smpte170m", AVCOL_PRI_SMPTE170M, "prm"),
1094  ENUM("smpte240m", AVCOL_PRI_SMPTE240M, "prm"),
1095  ENUM("film", AVCOL_PRI_FILM, "prm"),
1096  ENUM("smpte431", AVCOL_PRI_SMPTE431, "prm"),
1097  ENUM("smpte432", AVCOL_PRI_SMPTE432, "prm"),
1098  ENUM("bt2020", AVCOL_PRI_BT2020, "prm"),
1099 
1100  { "trc", "Output transfer characteristics",
1101  OFFSET(user_trc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1102  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1103  ENUM("bt709", AVCOL_TRC_BT709, "trc"),
1104  ENUM("bt470m", AVCOL_TRC_GAMMA22, "trc"),
1105  ENUM("gamma22", AVCOL_TRC_GAMMA22, "trc"),
1106  ENUM("bt470bg", AVCOL_TRC_GAMMA28, "trc"),
1107  ENUM("gamma28", AVCOL_TRC_GAMMA28, "trc"),
1108  ENUM("smpte170m", AVCOL_TRC_SMPTE170M, "trc"),
1109  ENUM("smpte240m", AVCOL_TRC_SMPTE240M, "trc"),
1110  ENUM("srgb", AVCOL_TRC_IEC61966_2_1, "trc"),
1111  ENUM("iec61966-2-1", AVCOL_TRC_IEC61966_2_1, "trc"),
1112  ENUM("xvycc", AVCOL_TRC_IEC61966_2_4, "trc"),
1113  ENUM("iec61966-2-4", AVCOL_TRC_IEC61966_2_4, "trc"),
1114  ENUM("bt2020-10", AVCOL_TRC_BT2020_10, "trc"),
1115  ENUM("bt2020-12", AVCOL_TRC_BT2020_12, "trc"),
1116 
1117  { "format", "Output pixel format",
1118  OFFSET(user_format), AV_OPT_TYPE_INT, { .i64 = AV_PIX_FMT_NONE },
1120  ENUM("yuv420p", AV_PIX_FMT_YUV420P, "fmt"),
1121  ENUM("yuv420p10", AV_PIX_FMT_YUV420P10, "fmt"),
1122  ENUM("yuv420p12", AV_PIX_FMT_YUV420P12, "fmt"),
1123  ENUM("yuv422p", AV_PIX_FMT_YUV422P, "fmt"),
1124  ENUM("yuv422p10", AV_PIX_FMT_YUV422P10, "fmt"),
1125  ENUM("yuv422p12", AV_PIX_FMT_YUV422P12, "fmt"),
1126  ENUM("yuv444p", AV_PIX_FMT_YUV444P, "fmt"),
1127  ENUM("yuv444p10", AV_PIX_FMT_YUV444P10, "fmt"),
1128  ENUM("yuv444p12", AV_PIX_FMT_YUV444P12, "fmt"),
1129 
1130  { "fast", "Ignore primary chromaticity and gamma correction",
1131  OFFSET(fast_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 },
1132  0, 1, FLAGS },
1133 
1134  { "dither", "Dithering mode",
1135  OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = DITHER_NONE },
1136  DITHER_NONE, DITHER_NB - 1, FLAGS, "dither" },
1137  ENUM("none", DITHER_NONE, "dither"),
1138  ENUM("fsb", DITHER_FSB, "dither"),
1139 
1140  { "wpadapt", "Whitepoint adaptation method",
1141  OFFSET(wp_adapt), AV_OPT_TYPE_INT, { .i64 = WP_ADAPT_BRADFORD },
1142  WP_ADAPT_BRADFORD, NB_WP_ADAPT - 1, FLAGS, "wpadapt" },
1143  ENUM("bradford", WP_ADAPT_BRADFORD, "wpadapt"),
1144  ENUM("vonkries", WP_ADAPT_VON_KRIES, "wpadapt"),
1145  ENUM("identity", WP_ADAPT_IDENTITY, "wpadapt"),
1146 
1147  { "iall", "Set all input color properties together",
1148  OFFSET(user_iall), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
1149  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1150  { "ispace", "Input colorspace",
1151  OFFSET(user_icsp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1152  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "csp" },
1153  { "irange", "Input color range",
1154  OFFSET(user_irng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1156  { "iprimaries", "Input color primaries",
1157  OFFSET(user_iprm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1158  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1159  { "itrc", "Input transfer characteristics",
1160  OFFSET(user_itrc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1161  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1162 
1163  { NULL }
1164 };
1165 
1166 AVFILTER_DEFINE_CLASS(colorspace);
1167 
1168 static const AVFilterPad inputs[] = {
1169  {
1170  .name = "default",
1171  .type = AVMEDIA_TYPE_VIDEO,
1172  .filter_frame = filter_frame,
1173  },
1174  { NULL }
1175 };
1176 
1177 static const AVFilterPad outputs[] = {
1178  {
1179  .name = "default",
1180  .type = AVMEDIA_TYPE_VIDEO,
1181  .config_props = config_props,
1182  },
1183  { NULL }
1184 };
1185 
1187  .name = "colorspace",
1188  .description = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
1189  .init = init,
1190  .uninit = uninit,
1191  .query_formats = query_formats,
1192  .priv_size = sizeof(ColorSpaceContext),
1193  .priv_class = &colorspace_class,
1194  .inputs = inputs,
1195  .outputs = outputs,
1197 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:439
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:453
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
AVFrame * out
Definition: af_sofalizer.c:587
IEC 61966-2-4.
Definition: pixfmt.h:435
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2333
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
rgb2yuv_fn rgb2yuv
int16_t yuv_offset[2][8]
static enum AVColorPrimaries default_prm[CS_NB+1]
Definition: vf_colorspace.c:84
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
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])
static void invert_matrix3x3(const double in[3][3], double out[3][3])
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
#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
const char * desc
Definition: nvenc.c:60
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:457
static void yuv2rgb(uint8_t *out, int ridx, int Y, int U, int V)
Definition: g2meet.c:276
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:415
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:458
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:414
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:355
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:92
#define src
Definition: vp8dsp.c:254
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:452
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:423
functionally identical to above
Definition: pixfmt.h:459
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2664
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:331
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
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1125
AVFrame * in
Definition: af_sofalizer.c:587
uint8_t bits
Definition: crc.c:296
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_malloc(s)
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:451
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2646
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:460
enum Whitepoint wp
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:428
static void uninit(AVFilterContext *ctx)
yuv2rgb_fn yuv2rgb
const struct ColorPrimaries * out_primaries
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:104
Colorspace
Definition: vf_colorspace.c:43
ptrdiff_t out_linesize[3]
static int flags
Definition: log.c:57
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
Not part of ABI.
Definition: pixfmt.h:477
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:473
ColorSpaceDSPContext dsp
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:356
const struct ColorPrimaries * in_primaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:400
#define FFALIGN(x, a)
Definition: macros.h:48
static const struct LumaCoefficients * get_luma_coefficients(enum AVColorSpace csp)
#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:405
int width
width and height of the video frame
Definition: frame.h:239
#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:163
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
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:338
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:423
#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:417
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:434
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:402
static void fill_rgb2yuv_table(const struct LumaCoefficients *coeffs, double rgb2yuv[3][3])
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
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:354
static int create_filtergraph(AVFilterContext *ctx, const AVFrame *in, const AVFrame *out)
int depth
Definition: v4l.c:62
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
Definition: frame.c:733
static const AVFilterPad inputs[]
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2652
#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:66
#define ENUM(x, y, z)
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
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:831
#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:74
colour filters using Illuminant C
Definition: pixfmt.h:410
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
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 AVColorSpace default_csp[CS_NB+1]
Definition: vf_colorspace.c:97
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:462
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:407
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]
int n
Definition: avisynth_c.h:684
#define FLAGS
static void fill_rgb2xyz_table(const struct ColorPrimaries *coeffs, double rgb2xyz[3][3])
FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
Definition: pixfmt.h:456
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:476
planar GBR 4:4:4:4 48bpp, little-endian
Definition: pixfmt.h:302
#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:251
also ITU-R BT1361
Definition: pixfmt.h:425
static const double ycgco_matrix[3][3]
static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt, enum Whitepoint src, enum Whitepoint dst)
#define src1
Definition: h264pred.c:139
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Definition: pixfmt.h:430
static int query_formats(AVFilterContext *ctx)
int16_t yuv2yuv_coeffs[3][3][8]
functionally identical to above
Definition: pixfmt.h:409
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:218
void(* multiply3x3)(int16_t *data[3], ptrdiff_t stride, int w, int h, const int16_t m[3][3][8])
Definition: colorspacedsp.h:74
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
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
rgb2yuv_fsb_fn rgb2yuv_fsb
WhitepointAdaptation
Definition: vf_colorspace.c:63
yuv2yuv_fn yuv2yuv[NB_BPP][NB_BPP][NB_SS]
Definition: colorspacedsp.h:70
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
static int fill_gamma_table(ColorSpaceContext *s)
void * buf
Definition: avisynth_c.h:690
Whitepoint
Definition: vf_colorspace.c:56
rgb2yuv_fn rgb2yuv[NB_BPP][NB_SS]
Definition: colorspacedsp.h:65
int * dither_scratch_base[3][2]
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:351
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:445
const struct LumaCoefficients * in_lumacoef
const char * name
Filter name.
Definition: avfilter.h:148
static enum AVColorTransferCharacteristic default_trc[CS_NB+1]
Definition: vf_colorspace.c:71
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:335
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
static const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB]
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:363
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:352
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:358
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:475
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:463
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
IEC 61966-2-1 (sRGB or sYCC)
Definition: pixfmt.h:437
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:2658
also ITU-R BT470BG
Definition: pixfmt.h:429
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
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]
static void mul3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
pixel format definitions
static const int16_t coeffs[]
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:425
An instance of a filter.
Definition: avfilter.h:323
AVFILTER_DEFINE_CLASS(colorspace)
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:438
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:408
ITU-R BT2020.
Definition: pixfmt.h:411
int height
Definition: frame.h:239
FILE * out
Definition: movenc.c:54
#define av_freep(p)
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:427
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:2249
#define stride
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:60
rgb2yuv_fsb_fn rgb2yuv_fsb[NB_BPP][NB_SS]
Definition: colorspacedsp.h:67
Not part of ABI.
Definition: pixfmt.h:465
DitherMode
Definition: vf_colorspace.c:37
yuv2yuv_fn yuv2yuv
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:596
#define OFFSET(x)
static uint8_t tmp[11]
Definition: aes_ctr.c:26