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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 {
62 };
63 
70 };
71 
83 };
84 
85 static const enum AVColorPrimaries default_prm[CS_NB + 1] = {
96 };
97 
98 static const enum AVColorSpace default_csp[CS_NB + 1] = {
109 };
110 
113  double xr, yr, xg, yg, xb, yb;
114 };
115 
117  double alpha, beta, gamma, delta;
118 };
119 
121  double cr, cg, cb;
122 };
123 
125  double xw, yw;
126 };
127 
128 typedef struct ColorSpaceContext {
129  const AVClass *class;
130 
132 
133  enum Colorspace user_all, user_iall;
134  enum AVColorSpace in_csp, out_csp, user_csp, user_icsp;
135  enum AVColorRange in_rng, out_rng, user_rng, user_irng;
136  enum AVColorTransferCharacteristic in_trc, out_trc, user_trc, user_itrc;
137  enum AVColorPrimaries in_prm, out_prm, user_prm, user_iprm;
138  enum AVPixelFormat in_format, user_format;
142 
143  int16_t *rgb[3];
144  ptrdiff_t rgb_stride;
145  unsigned rgb_sz;
147 
150  DECLARE_ALIGNED(16, int16_t, lrgb2lrgb_coeffs)[3][3][8];
151 
154  int16_t *lin_lut, *delin_lut;
155 
158  DECLARE_ALIGNED(16, int16_t, yuv2rgb_coeffs)[3][3][8];
159  DECLARE_ALIGNED(16, int16_t, rgb2yuv_coeffs)[3][3][8];
160  DECLARE_ALIGNED(16, int16_t, yuv2yuv_coeffs)[3][3][8];
161  DECLARE_ALIGNED(16, int16_t, yuv_offset)[2 /* in, out */][8];
168 
171 
172 // FIXME deal with odd width/heights
173 // FIXME faster linearize/delinearize implementation (integer pow)
174 // FIXME bt2020cl support (linearization between yuv/rgb step instead of between rgb/xyz)
175 // FIXME test that the values in (de)lin_lut don't exceed their container storage
176 // type size (only useful if we keep the LUT and don't move to fast integer pow)
177 // FIXME dithering if bitdepth goes down?
178 // FIXME bitexact for fate integration?
179 
180 static const double ycgco_matrix[3][3] =
181 {
182  { 0.25, 0.5, 0.25 },
183  { -0.25, 0.5, -0.25 },
184  { 0.5, 0, -0.5 },
185 };
186 
187 static const double gbr_matrix[3][3] =
188 {
189  { 0, 1, 0 },
190  { 0, -0.5, 0.5 },
191  { 0.5, -0.5, 0 },
192 };
193 
194 /*
195  * All constants explained in e.g. https://linuxtv.org/downloads/v4l-dvb-apis/ch02s06.html
196  * The older ones (bt470bg/m) are also explained in their respective ITU docs
197  * (e.g. https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.470-5-199802-S!!PDF-E.pdf)
198  * whereas the newer ones can typically be copied directly from wikipedia :)
199  */
201  [AVCOL_SPC_FCC] = { 0.30, 0.59, 0.11 },
202  [AVCOL_SPC_BT470BG] = { 0.299, 0.587, 0.114 },
203  [AVCOL_SPC_SMPTE170M] = { 0.299, 0.587, 0.114 },
204  [AVCOL_SPC_BT709] = { 0.2126, 0.7152, 0.0722 },
205  [AVCOL_SPC_SMPTE240M] = { 0.212, 0.701, 0.087 },
206  [AVCOL_SPC_YCOCG] = { 0.25, 0.5, 0.25 },
207  [AVCOL_SPC_RGB] = { 1, 1, 1 },
208  [AVCOL_SPC_BT2020_NCL] = { 0.2627, 0.6780, 0.0593 },
209  [AVCOL_SPC_BT2020_CL] = { 0.2627, 0.6780, 0.0593 },
210 };
211 
213 {
214  const struct LumaCoefficients *coeffs;
215 
216  if (csp >= AVCOL_SPC_NB)
217  return NULL;
218  coeffs = &luma_coefficients[csp];
219  if (!coeffs->cr)
220  return NULL;
221 
222  return coeffs;
223 }
224 
225 static void fill_rgb2yuv_table(const struct LumaCoefficients *coeffs,
226  double rgb2yuv[3][3])
227 {
228  double bscale, rscale;
229 
230  // special ycgco matrix
231  if (coeffs->cr == 0.25 && coeffs->cg == 0.5 && coeffs->cb == 0.25) {
232  memcpy(rgb2yuv, ycgco_matrix, sizeof(double) * 9);
233  return;
234  } else if (coeffs->cr == 1 && coeffs->cg == 1 && coeffs->cb == 1) {
235  memcpy(rgb2yuv, gbr_matrix, sizeof(double) * 9);
236  return;
237  }
238 
239  rgb2yuv[0][0] = coeffs->cr;
240  rgb2yuv[0][1] = coeffs->cg;
241  rgb2yuv[0][2] = coeffs->cb;
242  bscale = 0.5 / (coeffs->cb - 1.0);
243  rscale = 0.5 / (coeffs->cr - 1.0);
244  rgb2yuv[1][0] = bscale * coeffs->cr;
245  rgb2yuv[1][1] = bscale * coeffs->cg;
246  rgb2yuv[1][2] = 0.5;
247  rgb2yuv[2][0] = 0.5;
248  rgb2yuv[2][1] = rscale * coeffs->cg;
249  rgb2yuv[2][2] = rscale * coeffs->cb;
250 }
251 
252 // FIXME I'm pretty sure gamma22/28 also have a linear toe slope, but I can't
253 // find any actual tables that document their real values...
254 // See http://www.13thmonkey.org/~boris/gammacorrection/ first graph why it matters
256  [AVCOL_TRC_BT709] = { 1.099, 0.018, 0.45, 4.5 },
257  [AVCOL_TRC_GAMMA22] = { 1.0, 0.0, 1.0 / 2.2, 0.0 },
258  [AVCOL_TRC_GAMMA28] = { 1.0, 0.0, 1.0 / 2.8, 0.0 },
259  [AVCOL_TRC_SMPTE170M] = { 1.099, 0.018, 0.45, 4.5 },
260  [AVCOL_TRC_SMPTE240M] = { 1.1115, 0.0228, 0.45, 4.0 },
261  [AVCOL_TRC_IEC61966_2_1] = { 1.055, 0.0031308, 1.0 / 2.4, 12.92 },
262  [AVCOL_TRC_IEC61966_2_4] = { 1.099, 0.018, 0.45, 4.5 },
263  [AVCOL_TRC_BT2020_10] = { 1.099, 0.018, 0.45, 4.5 },
264  [AVCOL_TRC_BT2020_12] = { 1.0993, 0.0181, 0.45, 4.5 },
265 };
266 
267 static const struct TransferCharacteristics *
269 {
270  const struct TransferCharacteristics *coeffs;
271 
272  if (trc >= AVCOL_TRC_NB)
273  return NULL;
274  coeffs = &transfer_characteristics[trc];
275  if (!coeffs->alpha)
276  return NULL;
277 
278  return coeffs;
279 }
280 
282  [WP_D65] = { 0.3127, 0.3290 },
283  [WP_C] = { 0.3100, 0.3160 },
284  [WP_DCI] = { 0.3140, 0.3510 },
285  [WP_E] = { 1/3.0f, 1/3.0f },
286 };
287 
289  [AVCOL_PRI_BT709] = { WP_D65, 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 },
290  [AVCOL_PRI_BT470M] = { WP_C, 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 },
291  [AVCOL_PRI_BT470BG] = { WP_D65, 0.640, 0.330, 0.290, 0.600, 0.150, 0.060,},
292  [AVCOL_PRI_SMPTE170M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
293  [AVCOL_PRI_SMPTE240M] = { WP_D65, 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 },
294  [AVCOL_PRI_SMPTE428] = { WP_E, 0.735, 0.265, 0.274, 0.718, 0.167, 0.009 },
295  [AVCOL_PRI_SMPTE431] = { WP_DCI, 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 },
296  [AVCOL_PRI_SMPTE432] = { WP_D65, 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 },
297  [AVCOL_PRI_FILM] = { WP_C, 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 },
298  [AVCOL_PRI_BT2020] = { WP_D65, 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 },
299  [AVCOL_PRI_JEDEC_P22] = { WP_D65, 0.630, 0.340, 0.295, 0.605, 0.155, 0.077 },
300 };
301 
303 {
304  const struct ColorPrimaries *coeffs;
305 
306  if (prm >= AVCOL_PRI_NB)
307  return NULL;
308  coeffs = &color_primaries[prm];
309  if (!coeffs->xr)
310  return NULL;
311 
312  return coeffs;
313 }
314 
315 static void invert_matrix3x3(const double in[3][3], double out[3][3])
316 {
317  double m00 = in[0][0], m01 = in[0][1], m02 = in[0][2],
318  m10 = in[1][0], m11 = in[1][1], m12 = in[1][2],
319  m20 = in[2][0], m21 = in[2][1], m22 = in[2][2];
320  int i, j;
321  double det;
322 
323  out[0][0] = (m11 * m22 - m21 * m12);
324  out[0][1] = -(m01 * m22 - m21 * m02);
325  out[0][2] = (m01 * m12 - m11 * m02);
326  out[1][0] = -(m10 * m22 - m20 * m12);
327  out[1][1] = (m00 * m22 - m20 * m02);
328  out[1][2] = -(m00 * m12 - m10 * m02);
329  out[2][0] = (m10 * m21 - m20 * m11);
330  out[2][1] = -(m00 * m21 - m20 * m01);
331  out[2][2] = (m00 * m11 - m10 * m01);
332 
333  det = m00 * out[0][0] + m10 * out[0][1] + m20 * out[0][2];
334  det = 1.0 / det;
335 
336  for (i = 0; i < 3; i++) {
337  for (j = 0; j < 3; j++)
338  out[i][j] *= det;
339  }
340 }
341 
343 {
344  int n;
345  double in_alpha = s->in_txchr->alpha, in_beta = s->in_txchr->beta;
346  double in_gamma = s->in_txchr->gamma, in_delta = s->in_txchr->delta;
347  double in_ialpha = 1.0 / in_alpha, in_igamma = 1.0 / in_gamma, in_idelta = 1.0 / in_delta;
348  double out_alpha = s->out_txchr->alpha, out_beta = s->out_txchr->beta;
349  double out_gamma = s->out_txchr->gamma, out_delta = s->out_txchr->delta;
350 
351  s->lin_lut = av_malloc(sizeof(*s->lin_lut) * 32768 * 2);
352  if (!s->lin_lut)
353  return AVERROR(ENOMEM);
354  s->delin_lut = &s->lin_lut[32768];
355  for (n = 0; n < 32768; n++) {
356  double v = (n - 2048.0) / 28672.0, d, l;
357 
358  // delinearize
359  if (v <= -out_beta) {
360  d = -out_alpha * pow(-v, out_gamma) + (out_alpha - 1.0);
361  } else if (v < out_beta) {
362  d = out_delta * v;
363  } else {
364  d = out_alpha * pow(v, out_gamma) - (out_alpha - 1.0);
365  }
366  s->delin_lut[n] = av_clip_int16(lrint(d * 28672.0));
367 
368  // linearize
369  if (v <= -in_beta) {
370  l = -pow((1.0 - in_alpha - v) * in_ialpha, in_igamma);
371  } else if (v < in_beta) {
372  l = v * in_idelta;
373  } else {
374  l = pow((v + in_alpha - 1.0) * in_ialpha, in_igamma);
375  }
376  s->lin_lut[n] = av_clip_int16(lrint(l * 28672.0));
377  }
378 
379  return 0;
380 }
381 
382 /*
383  * see e.g. http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
384  */
385 static void fill_rgb2xyz_table(const struct ColorPrimaries *coeffs,
386  double rgb2xyz[3][3])
387 {
388  const struct WhitepointCoefficients *wp = &whitepoint_coefficients[coeffs->wp];
389  double i[3][3], sr, sg, sb, zw;
390 
391  rgb2xyz[0][0] = coeffs->xr / coeffs->yr;
392  rgb2xyz[0][1] = coeffs->xg / coeffs->yg;
393  rgb2xyz[0][2] = coeffs->xb / coeffs->yb;
394  rgb2xyz[1][0] = rgb2xyz[1][1] = rgb2xyz[1][2] = 1.0;
395  rgb2xyz[2][0] = (1.0 - coeffs->xr - coeffs->yr) / coeffs->yr;
396  rgb2xyz[2][1] = (1.0 - coeffs->xg - coeffs->yg) / coeffs->yg;
397  rgb2xyz[2][2] = (1.0 - coeffs->xb - coeffs->yb) / coeffs->yb;
398  invert_matrix3x3(rgb2xyz, i);
399  zw = 1.0 - wp->xw - wp->yw;
400  sr = i[0][0] * wp->xw + i[0][1] * wp->yw + i[0][2] * zw;
401  sg = i[1][0] * wp->xw + i[1][1] * wp->yw + i[1][2] * zw;
402  sb = i[2][0] * wp->xw + i[2][1] * wp->yw + i[2][2] * zw;
403  rgb2xyz[0][0] *= sr;
404  rgb2xyz[0][1] *= sg;
405  rgb2xyz[0][2] *= sb;
406  rgb2xyz[1][0] *= sr;
407  rgb2xyz[1][1] *= sg;
408  rgb2xyz[1][2] *= sb;
409  rgb2xyz[2][0] *= sr;
410  rgb2xyz[2][1] *= sg;
411  rgb2xyz[2][2] *= sb;
412 }
413 
414 static void mul3x3(double dst[3][3], const double src1[3][3], const double src2[3][3])
415 {
416  int m, n;
417 
418  for (m = 0; m < 3; m++)
419  for (n = 0; n < 3; n++)
420  dst[m][n] = src2[m][0] * src1[0][n] +
421  src2[m][1] * src1[1][n] +
422  src2[m][2] * src1[2][n];
423 }
424 
425 /*
426  * See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html
427  * This function uses the Bradford mechanism.
428  */
429 static void fill_whitepoint_conv_table(double out[3][3], enum WhitepointAdaptation wp_adapt,
430  enum Whitepoint src, enum Whitepoint dst)
431 {
432  static const double ma_tbl[NB_WP_ADAPT_NON_IDENTITY][3][3] = {
433  [WP_ADAPT_BRADFORD] = {
434  { 0.8951, 0.2664, -0.1614 },
435  { -0.7502, 1.7135, 0.0367 },
436  { 0.0389, -0.0685, 1.0296 },
437  }, [WP_ADAPT_VON_KRIES] = {
438  { 0.40024, 0.70760, -0.08081 },
439  { -0.22630, 1.16532, 0.04570 },
440  { 0.00000, 0.00000, 0.91822 },
441  },
442  };
443  const double (*ma)[3] = ma_tbl[wp_adapt];
444  const struct WhitepointCoefficients *wp_src = &whitepoint_coefficients[src];
445  double zw_src = 1.0 - wp_src->xw - wp_src->yw;
446  const struct WhitepointCoefficients *wp_dst = &whitepoint_coefficients[dst];
447  double zw_dst = 1.0 - wp_dst->xw - wp_dst->yw;
448  double mai[3][3], fac[3][3], tmp[3][3];
449  double rs, gs, bs, rd, gd, bd;
450 
451  invert_matrix3x3(ma, mai);
452  rs = ma[0][0] * wp_src->xw + ma[0][1] * wp_src->yw + ma[0][2] * zw_src;
453  gs = ma[1][0] * wp_src->xw + ma[1][1] * wp_src->yw + ma[1][2] * zw_src;
454  bs = ma[2][0] * wp_src->xw + ma[2][1] * wp_src->yw + ma[2][2] * zw_src;
455  rd = ma[0][0] * wp_dst->xw + ma[0][1] * wp_dst->yw + ma[0][2] * zw_dst;
456  gd = ma[1][0] * wp_dst->xw + ma[1][1] * wp_dst->yw + ma[1][2] * zw_dst;
457  bd = ma[2][0] * wp_dst->xw + ma[2][1] * wp_dst->yw + ma[2][2] * zw_dst;
458  fac[0][0] = rd / rs;
459  fac[1][1] = gd / gs;
460  fac[2][2] = bd / bs;
461  fac[0][1] = fac[0][2] = fac[1][0] = fac[1][2] = fac[2][0] = fac[2][1] = 0.0;
462  mul3x3(tmp, ma, fac);
463  mul3x3(out, tmp, mai);
464 }
465 
466 static void apply_lut(int16_t *buf[3], ptrdiff_t stride,
467  int w, int h, const int16_t *lut)
468 {
469  int y, x, n;
470 
471  for (n = 0; n < 3; n++) {
472  int16_t *data = buf[n];
473 
474  for (y = 0; y < h; y++) {
475  for (x = 0; x < w; x++)
476  data[x] = lut[av_clip_uintp2(2048 + data[x], 15)];
477 
478  data += stride;
479  }
480  }
481 }
482 
483 struct ThreadData {
484  AVFrame *in, *out;
485  ptrdiff_t in_linesize[3], out_linesize[3];
487 };
488 
489 static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
490 {
491  struct ThreadData *td = data;
492  ColorSpaceContext *s = ctx->priv;
493  uint8_t *in_data[3], *out_data[3];
494  int16_t *rgb[3];
495  int h_in = (td->in->height + 1) >> 1;
496  int h1 = 2 * (job_nr * h_in / n_jobs), h2 = 2 * ((job_nr + 1) * h_in / n_jobs);
497  int w = td->in->width, h = h2 - h1;
498 
499  in_data[0] = td->in->data[0] + td->in_linesize[0] * h1;
500  in_data[1] = td->in->data[1] + td->in_linesize[1] * (h1 >> td->in_ss_h);
501  in_data[2] = td->in->data[2] + td->in_linesize[2] * (h1 >> td->in_ss_h);
502  out_data[0] = td->out->data[0] + td->out_linesize[0] * h1;
503  out_data[1] = td->out->data[1] + td->out_linesize[1] * (h1 >> td->out_ss_h);
504  out_data[2] = td->out->data[2] + td->out_linesize[2] * (h1 >> td->out_ss_h);
505  rgb[0] = s->rgb[0] + s->rgb_stride * h1;
506  rgb[1] = s->rgb[1] + s->rgb_stride * h1;
507  rgb[2] = s->rgb[2] + s->rgb_stride * h1;
508 
509  // FIXME for simd, also make sure we do pictures with negative stride
510  // top-down so we don't overwrite lines with padding of data before it
511  // in the same buffer (same as swscale)
512 
513  if (s->yuv2yuv_fastmode) {
514  // FIXME possibly use a fast mode in case only the y range changes?
515  // since in that case, only the diagonal entries in yuv2yuv_coeffs[]
516  // are non-zero
517  s->yuv2yuv(out_data, td->out_linesize, in_data, td->in_linesize, w, h,
518  s->yuv2yuv_coeffs, s->yuv_offset);
519  } else {
520  // FIXME maybe (for caching effciency) do pipeline per-line instead of
521  // full buffer per function? (Or, since yuv2rgb requires 2 lines: per
522  // 2 lines, for yuv420.)
523  /*
524  * General design:
525  * - yuv2rgb converts from whatever range the input was ([16-235/240] or
526  * [0,255] or the 10/12bpp equivalents thereof) to an integer version
527  * of RGB in psuedo-restricted 15+sign bits. That means that the float
528  * range [0.0,1.0] is in [0,28762], and the remainder of the int16_t
529  * range is used for overflow/underflow outside the representable
530  * range of this RGB type. rgb2yuv is the exact opposite.
531  * - gamma correction is done using a LUT since that appears to work
532  * fairly fast.
533  * - If the input is chroma-subsampled (420/422), the yuv2rgb conversion
534  * (or rgb2yuv conversion) uses nearest-neighbour sampling to read
535  * read chroma pixels at luma resolution. If you want some more fancy
536  * filter, you can use swscale to convert to yuv444p.
537  * - all coefficients are 14bit (so in the [-2.0,2.0] range).
538  */
539  s->yuv2rgb(rgb, s->rgb_stride, in_data, td->in_linesize, w, h,
540  s->yuv2rgb_coeffs, s->yuv_offset[0]);
541  if (!s->rgb2rgb_passthrough) {
542  apply_lut(rgb, s->rgb_stride, w, h, s->lin_lut);
543  if (!s->lrgb2lrgb_passthrough)
544  s->dsp.multiply3x3(rgb, s->rgb_stride, w, h, s->lrgb2lrgb_coeffs);
545  apply_lut(rgb, s->rgb_stride, w, h, s->delin_lut);
546  }
547  if (s->dither == DITHER_FSB) {
548  s->rgb2yuv_fsb(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
550  } else {
551  s->rgb2yuv(out_data, td->out_linesize, rgb, s->rgb_stride, w, h,
552  s->rgb2yuv_coeffs, s->yuv_offset[1]);
553  }
554  }
555 
556  return 0;
557 }
558 
559 static int get_range_off(AVFilterContext *ctx, int *off,
560  int *y_rng, int *uv_rng,
561  enum AVColorRange rng, int depth)
562 {
563  switch (rng) {
565  ColorSpaceContext *s = ctx->priv;
566 
567  if (!s->did_warn_range) {
568  av_log(ctx, AV_LOG_WARNING, "Input range not set, assuming tv/mpeg\n");
569  s->did_warn_range = 1;
570  }
571  }
572  // fall-through
573  case AVCOL_RANGE_MPEG:
574  *off = 16 << (depth - 8);
575  *y_rng = 219 << (depth - 8);
576  *uv_rng = 224 << (depth - 8);
577  break;
578  case AVCOL_RANGE_JPEG:
579  *off = 0;
580  *y_rng = *uv_rng = (256 << (depth - 8)) - 1;
581  break;
582  default:
583  return AVERROR(EINVAL);
584  }
585 
586  return 0;
587 }
588 
590  const AVFrame *in, const AVFrame *out)
591 {
592  ColorSpaceContext *s = ctx->priv;
593  const AVPixFmtDescriptor *in_desc = av_pix_fmt_desc_get(in->format);
594  const AVPixFmtDescriptor *out_desc = av_pix_fmt_desc_get(out->format);
595  int emms = 0, m, n, o, res, fmt_identical, redo_yuv2rgb = 0, redo_rgb2yuv = 0;
596 
597 #define supported_depth(d) ((d) == 8 || (d) == 10 || (d) == 12)
598 #define supported_subsampling(lcw, lch) \
599  (((lcw) == 0 && (lch) == 0) || ((lcw) == 1 && (lch) == 0) || ((lcw) == 1 && (lch) == 1))
600 #define supported_format(d) \
601  ((d) != NULL && (d)->nb_components == 3 && \
602  !((d)->flags & AV_PIX_FMT_FLAG_RGB) && \
603  supported_depth((d)->comp[0].depth) && \
604  supported_subsampling((d)->log2_chroma_w, (d)->log2_chroma_h))
605 
606  if (!supported_format(in_desc)) {
607  av_log(ctx, AV_LOG_ERROR,
608  "Unsupported input format %d (%s) or bitdepth (%d)\n",
610  in_desc ? in_desc->comp[0].depth : -1);
611  return AVERROR(EINVAL);
612  }
613  if (!supported_format(out_desc)) {
614  av_log(ctx, AV_LOG_ERROR,
615  "Unsupported output format %d (%s) or bitdepth (%d)\n",
616  out->format, av_get_pix_fmt_name(out->format),
617  out_desc ? out_desc->comp[0].depth : -1);
618  return AVERROR(EINVAL);
619  }
620 
621  if (in->color_primaries != s->in_prm) s->in_primaries = NULL;
622  if (out->color_primaries != s->out_prm) s->out_primaries = NULL;
623  if (in->color_trc != s->in_trc) s->in_txchr = NULL;
624  if (out->color_trc != s->out_trc) s->out_txchr = NULL;
625  if (in->colorspace != s->in_csp ||
626  in->color_range != s->in_rng) s->in_lumacoef = NULL;
627  if (out->colorspace != s->out_csp ||
628  out->color_range != s->out_rng) s->out_lumacoef = NULL;
629 
630  if (!s->out_primaries || !s->in_primaries) {
631  s->in_prm = in->color_primaries;
632  if (s->user_iall != CS_UNSPECIFIED)
633  s->in_prm = default_prm[FFMIN(s->user_iall, CS_NB)];
635  s->in_prm = s->user_iprm;
636  s->in_primaries = get_color_primaries(s->in_prm);
637  if (!s->in_primaries) {
638  av_log(ctx, AV_LOG_ERROR,
639  "Unsupported input primaries %d (%s)\n",
640  s->in_prm, av_color_primaries_name(s->in_prm));
641  return AVERROR(EINVAL);
642  }
643  s->out_prm = out->color_primaries;
644  s->out_primaries = get_color_primaries(s->out_prm);
645  if (!s->out_primaries) {
646  if (s->out_prm == AVCOL_PRI_UNSPECIFIED) {
647  if (s->user_all == CS_UNSPECIFIED) {
648  av_log(ctx, AV_LOG_ERROR, "Please specify output primaries\n");
649  } else {
650  av_log(ctx, AV_LOG_ERROR,
651  "Unsupported output color property %d\n", s->user_all);
652  }
653  } else {
654  av_log(ctx, AV_LOG_ERROR,
655  "Unsupported output primaries %d (%s)\n",
656  s->out_prm, av_color_primaries_name(s->out_prm));
657  }
658  return AVERROR(EINVAL);
659  }
661  sizeof(*s->in_primaries));
662  if (!s->lrgb2lrgb_passthrough) {
663  double rgb2xyz[3][3], xyz2rgb[3][3], rgb2rgb[3][3];
664 
665  fill_rgb2xyz_table(s->out_primaries, rgb2xyz);
666  invert_matrix3x3(rgb2xyz, xyz2rgb);
667  fill_rgb2xyz_table(s->in_primaries, rgb2xyz);
668  if (s->out_primaries->wp != s->in_primaries->wp &&
669  s->wp_adapt != WP_ADAPT_IDENTITY) {
670  double wpconv[3][3], tmp[3][3];
671 
673  s->out_primaries->wp);
674  mul3x3(tmp, rgb2xyz, wpconv);
675  mul3x3(rgb2rgb, tmp, xyz2rgb);
676  } else {
677  mul3x3(rgb2rgb, rgb2xyz, xyz2rgb);
678  }
679  for (m = 0; m < 3; m++)
680  for (n = 0; n < 3; n++) {
681  s->lrgb2lrgb_coeffs[m][n][0] = lrint(16384.0 * rgb2rgb[m][n]);
682  for (o = 1; o < 8; o++)
683  s->lrgb2lrgb_coeffs[m][n][o] = s->lrgb2lrgb_coeffs[m][n][0];
684  }
685 
686  emms = 1;
687  }
688  }
689 
690  if (!s->in_txchr) {
691  av_freep(&s->lin_lut);
692  s->in_trc = in->color_trc;
693  if (s->user_iall != CS_UNSPECIFIED)
694  s->in_trc = default_trc[FFMIN(s->user_iall, CS_NB)];
696  s->in_trc = s->user_itrc;
697  s->in_txchr = get_transfer_characteristics(s->in_trc);
698  if (!s->in_txchr) {
699  av_log(ctx, AV_LOG_ERROR,
700  "Unsupported input transfer characteristics %d (%s)\n",
701  s->in_trc, av_color_transfer_name(s->in_trc));
702  return AVERROR(EINVAL);
703  }
704  }
705 
706  if (!s->out_txchr) {
707  av_freep(&s->lin_lut);
708  s->out_trc = out->color_trc;
709  s->out_txchr = get_transfer_characteristics(s->out_trc);
710  if (!s->out_txchr) {
711  if (s->out_trc == AVCOL_TRC_UNSPECIFIED) {
712  if (s->user_all == CS_UNSPECIFIED) {
713  av_log(ctx, AV_LOG_ERROR,
714  "Please specify output transfer characteristics\n");
715  } else {
716  av_log(ctx, AV_LOG_ERROR,
717  "Unsupported output color property %d\n", s->user_all);
718  }
719  } else {
720  av_log(ctx, AV_LOG_ERROR,
721  "Unsupported output transfer characteristics %d (%s)\n",
722  s->out_trc, av_color_transfer_name(s->out_trc));
723  }
724  return AVERROR(EINVAL);
725  }
726  }
727 
729  !memcmp(s->in_txchr, s->out_txchr, sizeof(*s->in_txchr)));
730  if (!s->rgb2rgb_passthrough && !s->lin_lut) {
731  res = fill_gamma_table(s);
732  if (res < 0)
733  return res;
734  emms = 1;
735  }
736 
737  if (!s->in_lumacoef) {
738  s->in_csp = in->colorspace;
739  if (s->user_iall != CS_UNSPECIFIED)
740  s->in_csp = default_csp[FFMIN(s->user_iall, CS_NB)];
742  s->in_csp = s->user_icsp;
743  s->in_rng = in->color_range;
745  s->in_rng = s->user_irng;
746  s->in_lumacoef = get_luma_coefficients(s->in_csp);
747  if (!s->in_lumacoef) {
748  av_log(ctx, AV_LOG_ERROR,
749  "Unsupported input colorspace %d (%s)\n",
750  s->in_csp, av_color_space_name(s->in_csp));
751  return AVERROR(EINVAL);
752  }
753  redo_yuv2rgb = 1;
754  }
755 
756  if (!s->out_lumacoef) {
757  s->out_csp = out->colorspace;
758  s->out_rng = out->color_range;
759  s->out_lumacoef = get_luma_coefficients(s->out_csp);
760  if (!s->out_lumacoef) {
761  if (s->out_csp == AVCOL_SPC_UNSPECIFIED) {
762  if (s->user_all == CS_UNSPECIFIED) {
763  av_log(ctx, AV_LOG_ERROR,
764  "Please specify output transfer characteristics\n");
765  } else {
766  av_log(ctx, AV_LOG_ERROR,
767  "Unsupported output color property %d\n", s->user_all);
768  }
769  } else {
770  av_log(ctx, AV_LOG_ERROR,
771  "Unsupported output transfer characteristics %d (%s)\n",
772  s->out_csp, av_color_space_name(s->out_csp));
773  }
774  return AVERROR(EINVAL);
775  }
776  redo_rgb2yuv = 1;
777  }
778 
779  fmt_identical = in_desc->log2_chroma_h == out_desc->log2_chroma_h &&
780  in_desc->log2_chroma_w == out_desc->log2_chroma_w;
781  s->yuv2yuv_fastmode = s->rgb2rgb_passthrough && fmt_identical;
782  s->yuv2yuv_passthrough = s->yuv2yuv_fastmode && s->in_rng == s->out_rng &&
783  !memcmp(s->in_lumacoef, s->out_lumacoef,
784  sizeof(*s->in_lumacoef)) &&
785  in_desc->comp[0].depth == out_desc->comp[0].depth;
786  if (!s->yuv2yuv_passthrough) {
787  if (redo_yuv2rgb) {
788  double rgb2yuv[3][3], (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
789  int off, bits, in_rng;
790 
791  res = get_range_off(ctx, &off, &s->in_y_rng, &s->in_uv_rng,
792  s->in_rng, in_desc->comp[0].depth);
793  if (res < 0) {
794  av_log(ctx, AV_LOG_ERROR,
795  "Unsupported input color range %d (%s)\n",
796  s->in_rng, av_color_range_name(s->in_rng));
797  return res;
798  }
799  for (n = 0; n < 8; n++)
800  s->yuv_offset[0][n] = off;
801  fill_rgb2yuv_table(s->in_lumacoef, rgb2yuv);
802  invert_matrix3x3(rgb2yuv, yuv2rgb);
803  bits = 1 << (in_desc->comp[0].depth - 1);
804  for (n = 0; n < 3; n++) {
805  for (in_rng = s->in_y_rng, m = 0; m < 3; m++, in_rng = s->in_uv_rng) {
806  s->yuv2rgb_coeffs[n][m][0] = lrint(28672 * bits * yuv2rgb[n][m] / in_rng);
807  for (o = 1; o < 8; o++)
808  s->yuv2rgb_coeffs[n][m][o] = s->yuv2rgb_coeffs[n][m][0];
809  }
810  }
811  av_assert2(s->yuv2rgb_coeffs[0][1][0] == 0);
812  av_assert2(s->yuv2rgb_coeffs[2][2][0] == 0);
813  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[1][0][0]);
814  av_assert2(s->yuv2rgb_coeffs[0][0][0] == s->yuv2rgb_coeffs[2][0][0]);
815  s->yuv2rgb = s->dsp.yuv2rgb[(in_desc->comp[0].depth - 8) >> 1]
816  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
817  emms = 1;
818  }
819 
820  if (redo_rgb2yuv) {
821  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
822  int off, out_rng, bits;
823 
824  res = get_range_off(ctx, &off, &s->out_y_rng, &s->out_uv_rng,
825  s->out_rng, out_desc->comp[0].depth);
826  if (res < 0) {
827  av_log(ctx, AV_LOG_ERROR,
828  "Unsupported output color range %d (%s)\n",
829  s->out_rng, av_color_range_name(s->out_rng));
830  return res;
831  }
832  for (n = 0; n < 8; n++)
833  s->yuv_offset[1][n] = off;
835  bits = 1 << (29 - out_desc->comp[0].depth);
836  for (out_rng = s->out_y_rng, n = 0; n < 3; n++, out_rng = s->out_uv_rng) {
837  for (m = 0; m < 3; m++) {
838  s->rgb2yuv_coeffs[n][m][0] = lrint(bits * out_rng * rgb2yuv[n][m] / 28672);
839  for (o = 1; o < 8; o++)
840  s->rgb2yuv_coeffs[n][m][o] = s->rgb2yuv_coeffs[n][m][0];
841  }
842  }
843  av_assert2(s->rgb2yuv_coeffs[1][2][0] == s->rgb2yuv_coeffs[2][0][0]);
844  s->rgb2yuv = s->dsp.rgb2yuv[(out_desc->comp[0].depth - 8) >> 1]
845  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
846  s->rgb2yuv_fsb = s->dsp.rgb2yuv_fsb[(out_desc->comp[0].depth - 8) >> 1]
847  [out_desc->log2_chroma_h + out_desc->log2_chroma_w];
848  emms = 1;
849  }
850 
851  if (s->yuv2yuv_fastmode && (redo_yuv2rgb || redo_rgb2yuv)) {
852  int idepth = in_desc->comp[0].depth, odepth = out_desc->comp[0].depth;
853  double (*rgb2yuv)[3] = s->rgb2yuv_dbl_coeffs;
854  double (*yuv2rgb)[3] = s->yuv2rgb_dbl_coeffs;
855  double yuv2yuv[3][3];
856  int in_rng, out_rng;
857 
858  mul3x3(yuv2yuv, yuv2rgb, rgb2yuv);
859  for (out_rng = s->out_y_rng, m = 0; m < 3; m++, out_rng = s->out_uv_rng) {
860  for (in_rng = s->in_y_rng, n = 0; n < 3; n++, in_rng = s->in_uv_rng) {
861  s->yuv2yuv_coeffs[m][n][0] =
862  lrint(16384 * yuv2yuv[m][n] * out_rng * (1 << idepth) /
863  (in_rng * (1 << odepth)));
864  for (o = 1; o < 8; o++)
865  s->yuv2yuv_coeffs[m][n][o] = s->yuv2yuv_coeffs[m][n][0];
866  }
867  }
868  av_assert2(s->yuv2yuv_coeffs[1][0][0] == 0);
869  av_assert2(s->yuv2yuv_coeffs[2][0][0] == 0);
870  s->yuv2yuv = s->dsp.yuv2yuv[(idepth - 8) >> 1][(odepth - 8) >> 1]
871  [in_desc->log2_chroma_h + in_desc->log2_chroma_w];
872  }
873  }
874 
875  if (emms)
876  emms_c();
877 
878  return 0;
879 }
880 
882 {
883  ColorSpaceContext *s = ctx->priv;
884 
886 
887  return 0;
888 }
889 
891 {
892  ColorSpaceContext *s = ctx->priv;
893 
894  av_freep(&s->rgb[0]);
895  av_freep(&s->rgb[1]);
896  av_freep(&s->rgb[2]);
897  s->rgb_sz = 0;
898  av_freep(&s->dither_scratch_base[0][0]);
899  av_freep(&s->dither_scratch_base[0][1]);
900  av_freep(&s->dither_scratch_base[1][0]);
901  av_freep(&s->dither_scratch_base[1][1]);
902  av_freep(&s->dither_scratch_base[2][0]);
903  av_freep(&s->dither_scratch_base[2][1]);
904 
905  av_freep(&s->lin_lut);
906 }
907 
908 static int filter_frame(AVFilterLink *link, AVFrame *in)
909 {
910  AVFilterContext *ctx = link->dst;
911  AVFilterLink *outlink = ctx->outputs[0];
912  ColorSpaceContext *s = ctx->priv;
913  // FIXME if yuv2yuv_passthrough, don't get a new buffer but use the
914  // input one if it is writable *OR* the actual literal values of in_*
915  // and out_* are identical (not just their respective properties)
916  AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
917  int res;
918  ptrdiff_t rgb_stride = FFALIGN(in->width * sizeof(int16_t), 32);
919  unsigned rgb_sz = rgb_stride * in->height;
920  struct ThreadData td;
921 
922  if (!out) {
923  av_frame_free(&in);
924  return AVERROR(ENOMEM);
925  }
926  res = av_frame_copy_props(out, in);
927  if (res < 0) {
928  av_frame_free(&in);
929  return res;
930  }
931 
932  out->color_primaries = s->user_prm == AVCOL_PRI_UNSPECIFIED ?
933  default_prm[FFMIN(s->user_all, CS_NB)] : s->user_prm;
934  if (s->user_trc == AVCOL_TRC_UNSPECIFIED) {
936 
937  out->color_trc = default_trc[FFMIN(s->user_all, CS_NB)];
938  if (out->color_trc == AVCOL_TRC_BT2020_10 && desc && desc->comp[0].depth >= 12)
940  } else {
941  out->color_trc = s->user_trc;
942  }
943  out->colorspace = s->user_csp == AVCOL_SPC_UNSPECIFIED ?
944  default_csp[FFMIN(s->user_all, CS_NB)] : s->user_csp;
945  out->color_range = s->user_rng == AVCOL_RANGE_UNSPECIFIED ?
946  in->color_range : s->user_rng;
947  if (rgb_sz != s->rgb_sz) {
949  int uvw = in->width >> desc->log2_chroma_w;
950 
951  av_freep(&s->rgb[0]);
952  av_freep(&s->rgb[1]);
953  av_freep(&s->rgb[2]);
954  s->rgb_sz = 0;
955  av_freep(&s->dither_scratch_base[0][0]);
956  av_freep(&s->dither_scratch_base[0][1]);
957  av_freep(&s->dither_scratch_base[1][0]);
958  av_freep(&s->dither_scratch_base[1][1]);
959  av_freep(&s->dither_scratch_base[2][0]);
960  av_freep(&s->dither_scratch_base[2][1]);
961 
962  s->rgb[0] = av_malloc(rgb_sz);
963  s->rgb[1] = av_malloc(rgb_sz);
964  s->rgb[2] = av_malloc(rgb_sz);
965  s->dither_scratch_base[0][0] =
966  av_malloc(sizeof(*s->dither_scratch_base[0][0]) * (in->width + 4));
967  s->dither_scratch_base[0][1] =
968  av_malloc(sizeof(*s->dither_scratch_base[0][1]) * (in->width + 4));
969  s->dither_scratch_base[1][0] =
970  av_malloc(sizeof(*s->dither_scratch_base[1][0]) * (uvw + 4));
971  s->dither_scratch_base[1][1] =
972  av_malloc(sizeof(*s->dither_scratch_base[1][1]) * (uvw + 4));
973  s->dither_scratch_base[2][0] =
974  av_malloc(sizeof(*s->dither_scratch_base[2][0]) * (uvw + 4));
975  s->dither_scratch_base[2][1] =
976  av_malloc(sizeof(*s->dither_scratch_base[2][1]) * (uvw + 4));
977  s->dither_scratch[0][0] = &s->dither_scratch_base[0][0][1];
978  s->dither_scratch[0][1] = &s->dither_scratch_base[0][1][1];
979  s->dither_scratch[1][0] = &s->dither_scratch_base[1][0][1];
980  s->dither_scratch[1][1] = &s->dither_scratch_base[1][1][1];
981  s->dither_scratch[2][0] = &s->dither_scratch_base[2][0][1];
982  s->dither_scratch[2][1] = &s->dither_scratch_base[2][1][1];
983  if (!s->rgb[0] || !s->rgb[1] || !s->rgb[2] ||
984  !s->dither_scratch_base[0][0] || !s->dither_scratch_base[0][1] ||
985  !s->dither_scratch_base[1][0] || !s->dither_scratch_base[1][1] ||
986  !s->dither_scratch_base[2][0] || !s->dither_scratch_base[2][1]) {
987  uninit(ctx);
988  return AVERROR(ENOMEM);
989  }
990  s->rgb_sz = rgb_sz;
991  }
992  res = create_filtergraph(ctx, in, out);
993  if (res < 0)
994  return res;
995  s->rgb_stride = rgb_stride / sizeof(int16_t);
996  td.in = in;
997  td.out = out;
998  td.in_linesize[0] = in->linesize[0];
999  td.in_linesize[1] = in->linesize[1];
1000  td.in_linesize[2] = in->linesize[2];
1001  td.out_linesize[0] = out->linesize[0];
1002  td.out_linesize[1] = out->linesize[1];
1003  td.out_linesize[2] = out->linesize[2];
1006  if (s->yuv2yuv_passthrough) {
1007  res = av_frame_copy(out, in);
1008  if (res < 0)
1009  return res;
1010  } else {
1011  ctx->internal->execute(ctx, convert, &td, NULL,
1012  FFMIN((in->height + 1) >> 1, ff_filter_get_nb_threads(ctx)));
1013  }
1014  av_frame_free(&in);
1015 
1016  return ff_filter_frame(outlink, out);
1017 }
1018 
1020 {
1021  static const enum AVPixelFormat pix_fmts[] = {
1027  };
1028  int res;
1029  ColorSpaceContext *s = ctx->priv;
1031 
1032  if (!formats)
1033  return AVERROR(ENOMEM);
1034  if (s->user_format == AV_PIX_FMT_NONE)
1035  return ff_set_common_formats(ctx, formats);
1036  res = ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
1037  if (res < 0)
1038  return res;
1039  formats = NULL;
1040  res = ff_add_format(&formats, s->user_format);
1041  if (res < 0)
1042  return res;
1043 
1044  return ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
1045 }
1046 
1047 static int config_props(AVFilterLink *outlink)
1048 {
1049  AVFilterContext *ctx = outlink->dst;
1050  AVFilterLink *inlink = outlink->src->inputs[0];
1051 
1052  if (inlink->w % 2 || inlink->h % 2) {
1053  av_log(ctx, AV_LOG_ERROR, "Invalid odd size (%dx%d)\n",
1054  inlink->w, inlink->h);
1055  return AVERROR_PATCHWELCOME;
1056  }
1057 
1058  outlink->w = inlink->w;
1059  outlink->h = inlink->h;
1060  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
1061  outlink->time_base = inlink->time_base;
1062 
1063  return 0;
1064 }
1065 
1066 #define OFFSET(x) offsetof(ColorSpaceContext, x)
1067 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
1068 #define ENUM(x, y, z) { x, "", 0, AV_OPT_TYPE_CONST, { .i64 = y }, INT_MIN, INT_MAX, FLAGS, z }
1069 
1070 static const AVOption colorspace_options[] = {
1071  { "all", "Set all color properties together",
1072  OFFSET(user_all), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
1073  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1074  ENUM("bt470m", CS_BT470M, "all"),
1075  ENUM("bt470bg", CS_BT470BG, "all"),
1076  ENUM("bt601-6-525", CS_BT601_6_525, "all"),
1077  ENUM("bt601-6-625", CS_BT601_6_625, "all"),
1078  ENUM("bt709", CS_BT709, "all"),
1079  ENUM("smpte170m", CS_SMPTE170M, "all"),
1080  ENUM("smpte240m", CS_SMPTE240M, "all"),
1081  ENUM("bt2020", CS_BT2020, "all"),
1082 
1083  { "space", "Output colorspace",
1084  OFFSET(user_csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1085  AVCOL_SPC_RGB, AVCOL_SPC_NB - 1, FLAGS, "csp"},
1086  ENUM("bt709", AVCOL_SPC_BT709, "csp"),
1087  ENUM("fcc", AVCOL_SPC_FCC, "csp"),
1088  ENUM("bt470bg", AVCOL_SPC_BT470BG, "csp"),
1089  ENUM("smpte170m", AVCOL_SPC_SMPTE170M, "csp"),
1090  ENUM("smpte240m", AVCOL_SPC_SMPTE240M, "csp"),
1091  ENUM("ycgco", AVCOL_SPC_YCGCO, "csp"),
1092  ENUM("gbr", AVCOL_SPC_RGB, "csp"),
1093  ENUM("bt2020nc", AVCOL_SPC_BT2020_NCL, "csp"),
1094  ENUM("bt2020ncl", AVCOL_SPC_BT2020_NCL, "csp"),
1095 
1096  { "range", "Output color range",
1097  OFFSET(user_rng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1099  ENUM("tv", AVCOL_RANGE_MPEG, "rng"),
1100  ENUM("mpeg", AVCOL_RANGE_MPEG, "rng"),
1101  ENUM("pc", AVCOL_RANGE_JPEG, "rng"),
1102  ENUM("jpeg", AVCOL_RANGE_JPEG, "rng"),
1103 
1104  { "primaries", "Output color primaries",
1105  OFFSET(user_prm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1106  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1107  ENUM("bt709", AVCOL_PRI_BT709, "prm"),
1108  ENUM("bt470m", AVCOL_PRI_BT470M, "prm"),
1109  ENUM("bt470bg", AVCOL_PRI_BT470BG, "prm"),
1110  ENUM("smpte170m", AVCOL_PRI_SMPTE170M, "prm"),
1111  ENUM("smpte240m", AVCOL_PRI_SMPTE240M, "prm"),
1112  ENUM("smpte428", AVCOL_PRI_SMPTE428, "prm"),
1113  ENUM("film", AVCOL_PRI_FILM, "prm"),
1114  ENUM("smpte431", AVCOL_PRI_SMPTE431, "prm"),
1115  ENUM("smpte432", AVCOL_PRI_SMPTE432, "prm"),
1116  ENUM("bt2020", AVCOL_PRI_BT2020, "prm"),
1117  ENUM("jedec-p22", AVCOL_PRI_JEDEC_P22, "prm"),
1118 
1119  { "trc", "Output transfer characteristics",
1120  OFFSET(user_trc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1121  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1122  ENUM("bt709", AVCOL_TRC_BT709, "trc"),
1123  ENUM("bt470m", AVCOL_TRC_GAMMA22, "trc"),
1124  ENUM("gamma22", AVCOL_TRC_GAMMA22, "trc"),
1125  ENUM("bt470bg", AVCOL_TRC_GAMMA28, "trc"),
1126  ENUM("gamma28", AVCOL_TRC_GAMMA28, "trc"),
1127  ENUM("smpte170m", AVCOL_TRC_SMPTE170M, "trc"),
1128  ENUM("smpte240m", AVCOL_TRC_SMPTE240M, "trc"),
1129  ENUM("srgb", AVCOL_TRC_IEC61966_2_1, "trc"),
1130  ENUM("iec61966-2-1", AVCOL_TRC_IEC61966_2_1, "trc"),
1131  ENUM("xvycc", AVCOL_TRC_IEC61966_2_4, "trc"),
1132  ENUM("iec61966-2-4", AVCOL_TRC_IEC61966_2_4, "trc"),
1133  ENUM("bt2020-10", AVCOL_TRC_BT2020_10, "trc"),
1134  ENUM("bt2020-12", AVCOL_TRC_BT2020_12, "trc"),
1135 
1136  { "format", "Output pixel format",
1137  OFFSET(user_format), AV_OPT_TYPE_INT, { .i64 = AV_PIX_FMT_NONE },
1139  ENUM("yuv420p", AV_PIX_FMT_YUV420P, "fmt"),
1140  ENUM("yuv420p10", AV_PIX_FMT_YUV420P10, "fmt"),
1141  ENUM("yuv420p12", AV_PIX_FMT_YUV420P12, "fmt"),
1142  ENUM("yuv422p", AV_PIX_FMT_YUV422P, "fmt"),
1143  ENUM("yuv422p10", AV_PIX_FMT_YUV422P10, "fmt"),
1144  ENUM("yuv422p12", AV_PIX_FMT_YUV422P12, "fmt"),
1145  ENUM("yuv444p", AV_PIX_FMT_YUV444P, "fmt"),
1146  ENUM("yuv444p10", AV_PIX_FMT_YUV444P10, "fmt"),
1147  ENUM("yuv444p12", AV_PIX_FMT_YUV444P12, "fmt"),
1148 
1149  { "fast", "Ignore primary chromaticity and gamma correction",
1150  OFFSET(fast_mode), AV_OPT_TYPE_BOOL, { .i64 = 0 },
1151  0, 1, FLAGS },
1152 
1153  { "dither", "Dithering mode",
1154  OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = DITHER_NONE },
1155  DITHER_NONE, DITHER_NB - 1, FLAGS, "dither" },
1156  ENUM("none", DITHER_NONE, "dither"),
1157  ENUM("fsb", DITHER_FSB, "dither"),
1158 
1159  { "wpadapt", "Whitepoint adaptation method",
1160  OFFSET(wp_adapt), AV_OPT_TYPE_INT, { .i64 = WP_ADAPT_BRADFORD },
1161  WP_ADAPT_BRADFORD, NB_WP_ADAPT - 1, FLAGS, "wpadapt" },
1162  ENUM("bradford", WP_ADAPT_BRADFORD, "wpadapt"),
1163  ENUM("vonkries", WP_ADAPT_VON_KRIES, "wpadapt"),
1164  ENUM("identity", WP_ADAPT_IDENTITY, "wpadapt"),
1165 
1166  { "iall", "Set all input color properties together",
1167  OFFSET(user_iall), AV_OPT_TYPE_INT, { .i64 = CS_UNSPECIFIED },
1168  CS_UNSPECIFIED, CS_NB - 1, FLAGS, "all" },
1169  { "ispace", "Input colorspace",
1170  OFFSET(user_icsp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED },
1171  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "csp" },
1172  { "irange", "Input color range",
1173  OFFSET(user_irng), AV_OPT_TYPE_INT, { .i64 = AVCOL_RANGE_UNSPECIFIED },
1175  { "iprimaries", "Input color primaries",
1176  OFFSET(user_iprm), AV_OPT_TYPE_INT, { .i64 = AVCOL_PRI_UNSPECIFIED },
1177  AVCOL_PRI_RESERVED0, AVCOL_PRI_NB - 1, FLAGS, "prm" },
1178  { "itrc", "Input transfer characteristics",
1179  OFFSET(user_itrc), AV_OPT_TYPE_INT, { .i64 = AVCOL_TRC_UNSPECIFIED },
1180  AVCOL_TRC_RESERVED0, AVCOL_TRC_NB - 1, FLAGS, "trc" },
1181 
1182  { NULL }
1183 };
1184 
1185 AVFILTER_DEFINE_CLASS(colorspace);
1186 
1187 static const AVFilterPad inputs[] = {
1188  {
1189  .name = "default",
1190  .type = AVMEDIA_TYPE_VIDEO,
1191  .filter_frame = filter_frame,
1192  },
1193  { NULL }
1194 };
1195 
1196 static const AVFilterPad outputs[] = {
1197  {
1198  .name = "default",
1199  .type = AVMEDIA_TYPE_VIDEO,
1200  .config_props = config_props,
1201  },
1202  { NULL }
1203 };
1204 
1206  .name = "colorspace",
1207  .description = NULL_IF_CONFIG_SMALL("Convert between colorspaces."),
1208  .init = init,
1209  .uninit = uninit,
1210  .query_formats = query_formats,
1211  .priv_size = sizeof(ColorSpaceContext),
1212  .priv_class = &colorspace_class,
1213  .inputs = inputs,
1214  .outputs = outputs,
1216 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:471
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
Definition: pixfmt.h:486
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
AVFrame * out
Definition: af_headphone.c:146
IEC 61966-2-4.
Definition: pixfmt.h:467
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2419
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
rgb2yuv_fn rgb2yuv
int16_t yuv_offset[2][8]
static enum AVColorPrimaries default_prm[CS_NB+1]
Definition: vf_colorspace.c:85
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
JEDEC P22 phosphors.
Definition: pixfmt.h:447
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:490
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:446
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:491
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:445
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:383
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:485
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:455
functionally identical to above
Definition: pixfmt.h:492
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:2803
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
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:1151
AVFrame * in
Definition: af_headphone.c:146
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:484
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2746
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:493
enum Whitepoint wp
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:460
#define emms_c()
Definition: internal.h:54
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:511
AVColorRange
MPEG vs JPEG YUV range.
Definition: pixfmt.h:507
ColorSpaceDSPContext dsp
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:384
const struct ColorPrimaries * in_primaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:431
#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:436
int width
Definition: frame.h:259
#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:353
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:446
#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:448
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:457
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
Definition: pixfmt.h:433
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
SMPTE ST 428-1 (CIE 1931 XYZ)
Definition: pixfmt.h:443
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:382
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:740
static const AVFilterPad inputs[]
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:2765
#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:857
#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:441
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 const double gbr_matrix[3][3]
static enum AVColorSpace default_csp[CS_NB+1]
Definition: vf_colorspace.c:98
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:495
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:438
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:489
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:510
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:274
also ITU-R BT1361
Definition: pixfmt.h:457
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:462
static int query_formats(AVFilterContext *ctx)
int16_t yuv2yuv_coeffs[3][3][8]
functionally identical to above
Definition: pixfmt.h:440
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
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:64
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:379
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:477
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:72
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
static const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB]
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:380
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:386
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:509
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:496
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:469
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:2784
also ITU-R BT470BG
Definition: pixfmt.h:461
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:448
An instance of a filter.
Definition: avfilter.h:338
AVFILTER_DEFINE_CLASS(colorspace)
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:470
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:439
ITU-R BT2020.
Definition: pixfmt.h:442
int height
Definition: frame.h:259
FILE * out
Definition: movenc.c:54
#define av_freep(p)
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:450
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:2335
#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:501
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:603
#define OFFSET(x)
static uint8_t tmp[11]
Definition: aes_ctr.c:26