FFmpeg
aom_film_grain.c
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1 /*
2  * AOM film grain synthesis
3  * Copyright (c) 2023 Niklas Haas <ffmpeg@haasn.xyz>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * AOM film grain synthesis.
25  * @author Niklas Haas <ffmpeg@haasn.xyz>
26  */
27 
28 #include "libavutil/avassert.h"
29 #include "libavutil/buffer.h"
30 #include "libavutil/imgutils.h"
31 #include "libavutil/mem.h"
32 
33 #include "aom_film_grain.h"
34 #include "get_bits.h"
35 
36 // Common/shared helpers (not dependent on BIT_DEPTH)
37 static inline int get_random_number(const int bits, unsigned *const state) {
38  const int r = *state;
39  unsigned bit = ((r >> 0) ^ (r >> 1) ^ (r >> 3) ^ (r >> 12)) & 1;
40  *state = (r >> 1) | (bit << 15);
41 
42  return (*state >> (16 - bits)) & ((1 << bits) - 1);
43 }
44 
45 static inline int round2(const int x, const uint64_t shift) {
46  return (x + ((1 << shift) >> 1)) >> shift;
47 }
48 
49 enum {
50  GRAIN_WIDTH = 82,
51  GRAIN_HEIGHT = 73,
52  SUB_GRAIN_WIDTH = 44,
53  SUB_GRAIN_HEIGHT = 38,
54  FG_BLOCK_SIZE = 32,
55 };
56 
57 static const int16_t gaussian_sequence[2048];
58 
59 #define BIT_DEPTH 16
60 #include "aom_film_grain_template.c"
61 #undef BIT_DEPTH
62 
63 #define BIT_DEPTH 8
64 #include "aom_film_grain_template.c"
65 #undef BIT_DEPTH
66 
67 
68 int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in,
69  const AVFilmGrainParams *params)
70 {
71  const AVFilmGrainAOMParams *const data = &params->codec.aom;
72  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
73  const int subx = desc->log2_chroma_w, suby = desc->log2_chroma_h;
74  const int pxstep = desc->comp[0].step;
75 
76  av_assert0(out->format == in->format);
77  av_assert0(params->type == AV_FILM_GRAIN_PARAMS_AV1);
78 
79  // Copy over the non-modified planes
80  if (!params->codec.aom.num_y_points) {
81  av_image_copy_plane(out->data[0], out->linesize[0],
82  in->data[0], in->linesize[0],
83  out->width * pxstep, out->height);
84  }
85  for (int uv = 0; uv < 2; uv++) {
86  if (!data->num_uv_points[uv]) {
87  av_image_copy_plane(out->data[1+uv], out->linesize[1+uv],
88  in->data[1+uv], in->linesize[1+uv],
89  AV_CEIL_RSHIFT(out->width, subx) * pxstep,
90  AV_CEIL_RSHIFT(out->height, suby));
91  }
92  }
93 
94  switch (in->format) {
95  case AV_PIX_FMT_GRAY8:
96  case AV_PIX_FMT_YUV420P:
97  case AV_PIX_FMT_YUV422P:
98  case AV_PIX_FMT_YUV444P:
99  case AV_PIX_FMT_YUVJ420P:
100  case AV_PIX_FMT_YUVJ422P:
101  case AV_PIX_FMT_YUVJ444P:
102  return apply_film_grain_8(out, in, params);
103  case AV_PIX_FMT_GRAY9:
104  case AV_PIX_FMT_YUV420P9:
105  case AV_PIX_FMT_YUV422P9:
106  case AV_PIX_FMT_YUV444P9:
107  return apply_film_grain_16(out, in, params, 9);
108  case AV_PIX_FMT_GRAY10:
109  case AV_PIX_FMT_YUV420P10:
110  case AV_PIX_FMT_YUV422P10:
111  case AV_PIX_FMT_YUV444P10:
112  return apply_film_grain_16(out, in, params, 10);
113  case AV_PIX_FMT_GRAY12:
114  case AV_PIX_FMT_YUV420P12:
115  case AV_PIX_FMT_YUV422P12:
116  case AV_PIX_FMT_YUV444P12:
117  return apply_film_grain_16(out, in, params, 12);
118  }
119 
120  /* The AV1 spec only defines film grain synthesis for these formats */
121  return AVERROR_INVALIDDATA;
122 }
123 
124 int ff_aom_parse_film_grain_sets(AVFilmGrainAFGS1Params *s,
125  const uint8_t *payload, int payload_size)
126 {
127  GetBitContext gbc, *gb = &gbc;
128  AVFilmGrainAOMParams *aom;
129  AVFilmGrainParams *fgp = NULL, *ref = NULL;
130  int ret, num_sets, n, i, uv, num_y_coeffs, update_grain, luma_only;
131 
132  ret = init_get_bits8(gb, payload, payload_size);
133  if (ret < 0)
134  return ret;
135 
136  s->enable = get_bits1(gb);
137  if (!s->enable)
138  return 0;
139 
140  for (int i = 0; i < FF_ARRAY_ELEMS(s->sets); i++)
141  av_buffer_unref(&s->sets[i]);
142 
143  skip_bits(gb, 4); // reserved
144  num_sets = get_bits(gb, 3) + 1;
145  for (n = 0; n < num_sets; n++) {
146  int payload_4byte, payload_size, set_idx, apply_units_log2, vsc_flag;
147  int predict_scaling, predict_y_scaling, predict_uv_scaling[2];
148  int payload_bits, start_position;
149  size_t fgp_size;
150 
151  start_position = get_bits_count(gb);
152  payload_4byte = get_bits1(gb);
153  payload_size = get_bits(gb, payload_4byte ? 2 : 8);
154  set_idx = get_bits(gb, 3);
155  fgp = av_film_grain_params_alloc(&fgp_size);
156  if (!fgp)
157  goto error;
158  aom = &fgp->codec.aom;
159 
160  fgp->type = get_bits1(gb) ? AV_FILM_GRAIN_PARAMS_AV1 : AV_FILM_GRAIN_PARAMS_NONE;
161  if (!fgp->type) {
162  av_freep(&fgp);
163  continue;
164  }
165 
166  fgp->seed = get_bits(gb, 16);
167  update_grain = get_bits1(gb);
168  if (!update_grain) {
169  av_freep(&fgp);
170  continue;
171  }
172 
173  apply_units_log2 = get_bits(gb, 4);
174  fgp->width = get_bits(gb, 12) << apply_units_log2;
175  fgp->height = get_bits(gb, 12) << apply_units_log2;
176  luma_only = get_bits1(gb);
177  if (luma_only) {
178  fgp->subsampling_x = fgp->subsampling_y = 0;
179  } else {
180  fgp->subsampling_x = get_bits1(gb);
181  fgp->subsampling_y = get_bits1(gb);
182  }
183 
184  fgp->bit_depth_luma = fgp->bit_depth_chroma = 0;
185  fgp->color_primaries = AVCOL_PRI_UNSPECIFIED;
186  fgp->color_trc = AVCOL_TRC_UNSPECIFIED;
187  fgp->color_space = AVCOL_SPC_UNSPECIFIED;
188  fgp->color_range = AVCOL_RANGE_UNSPECIFIED;
189 
190  vsc_flag = get_bits1(gb); // video_signal_characteristics_flag
191  if (vsc_flag) {
192  int cicp_flag;
193  fgp->bit_depth_luma = get_bits(gb, 3) + 8;
194  if (!luma_only)
195  fgp->bit_depth_chroma = fgp->bit_depth_luma;
196  cicp_flag = get_bits1(gb);
197  if (cicp_flag) {
198  fgp->color_primaries = get_bits(gb, 8);
199  fgp->color_trc = get_bits(gb, 8);
200  fgp->color_space = get_bits(gb, 8);
201  fgp->color_range = get_bits1(gb) ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
202  if (fgp->color_primaries > AVCOL_PRI_NB ||
203  fgp->color_primaries == AVCOL_PRI_RESERVED ||
204  fgp->color_primaries == AVCOL_PRI_RESERVED0 ||
205  fgp->color_trc > AVCOL_TRC_NB ||
206  fgp->color_trc == AVCOL_TRC_RESERVED ||
207  fgp->color_trc == AVCOL_TRC_RESERVED0 ||
208  fgp->color_space > AVCOL_SPC_NB ||
209  fgp->color_space == AVCOL_SPC_RESERVED)
210  goto error;
211  }
212  }
213 
214  predict_scaling = get_bits1(gb);
215  if (predict_scaling && (!ref || ref == fgp))
216  goto error; // prediction must be from valid, different set
217 
218  predict_y_scaling = predict_scaling ? get_bits1(gb) : 0;
219  if (predict_y_scaling) {
220  int y_scale, y_offset, bits_res;
221  y_scale = get_bits(gb, 9) - 256;
222  y_offset = get_bits(gb, 9) - 256;
223  bits_res = get_bits(gb, 3);
224  if (bits_res) {
225  int res[14], pred, granularity;
226  aom->num_y_points = ref->codec.aom.num_y_points;
227  for (i = 0; i < aom->num_y_points; i++)
228  res[i] = get_bits(gb, bits_res);
229  granularity = get_bits(gb, 3);
230  for (i = 0; i < aom->num_y_points; i++) {
231  pred = ref->codec.aom.y_points[i][1];
232  pred = ((pred * y_scale + 8) >> 4) + y_offset;
233  pred += (res[i] - (1 << (bits_res - 1))) * granularity;
234  aom->y_points[i][0] = ref->codec.aom.y_points[i][0];
235  aom->y_points[i][1] = av_clip_uint8(pred);
236  }
237  }
238  } else {
239  aom->num_y_points = get_bits(gb, 4);
240  if (aom->num_y_points > 14) {
241  goto error;
242  } else if (aom->num_y_points) {
243  int bits_inc, bits_scaling;
244  int y_value = 0;
245  bits_inc = get_bits(gb, 3) + 1;
246  bits_scaling = get_bits(gb, 2) + 5;
247  for (i = 0; i < aom->num_y_points; i++) {
248  y_value += get_bits(gb, bits_inc);
249  if (y_value > UINT8_MAX)
250  goto error;
251  aom->y_points[i][0] = y_value;
252  aom->y_points[i][1] = get_bits(gb, bits_scaling);
253  }
254  }
255  }
256 
257  if (luma_only) {
258  aom->chroma_scaling_from_luma = 0;
259  aom->num_uv_points[0] = aom->num_uv_points[1] = 0;
260  } else {
261  aom->chroma_scaling_from_luma = get_bits1(gb);
262  if (aom->chroma_scaling_from_luma) {
263  aom->num_uv_points[0] = aom->num_uv_points[1] = 0;
264  } else {
265  for (uv = 0; uv < 2; uv++) {
266  predict_uv_scaling[uv] = predict_scaling ? get_bits1(gb) : 0;
267  if (predict_uv_scaling[uv]) {
268  int uv_scale, uv_offset, bits_res;
269  uv_scale = get_bits(gb, 9) - 256;
270  uv_offset = get_bits(gb, 9) - 256;
271  bits_res = get_bits(gb, 3);
272  aom->uv_mult[uv] = ref->codec.aom.uv_mult[uv];
273  aom->uv_mult_luma[uv] = ref->codec.aom.uv_mult_luma[uv];
274  aom->uv_offset[uv] = ref->codec.aom.uv_offset[uv];
275  if (bits_res) {
276  int res[10], pred, granularity;
277  aom->num_uv_points[uv] = ref->codec.aom.num_uv_points[uv];
278  for (i = 0; i < aom->num_uv_points[uv]; i++)
279  res[i] = get_bits(gb, bits_res);
280  granularity = get_bits(gb, 3);
281  for (i = 0; i < aom->num_uv_points[uv]; i++) {
282  pred = ref->codec.aom.uv_points[uv][i][1];
283  pred = ((pred * uv_scale + 8) >> 4) + uv_offset;
284  pred += (res[i] - (1 << (bits_res - 1))) * granularity;
285  aom->uv_points[uv][i][0] = ref->codec.aom.uv_points[uv][i][0];
286  aom->uv_points[uv][i][1] = av_clip_uint8(pred);
287  }
288  }
289  } else {
290  int bits_inc, bits_scaling, uv_offset;
291  int uv_value = 0;
292  aom->num_uv_points[uv] = get_bits(gb, 4);
293  if (aom->num_uv_points[uv] > 10)
294  goto error;
295  bits_inc = get_bits(gb, 3) + 1;
296  bits_scaling = get_bits(gb, 2) + 5;
297  uv_offset = get_bits(gb, 8);
298  for (i = 0; i < aom->num_uv_points[uv]; i++) {
299  uv_value += get_bits(gb, bits_inc);
300  if (uv_value > UINT8_MAX)
301  goto error;
302  aom->uv_points[uv][i][0] = uv_value;
303  aom->uv_points[uv][i][1] = get_bits(gb, bits_scaling) + uv_offset;
304  }
305  }
306  }
307  }
308  }
309 
310  aom->scaling_shift = get_bits(gb, 2) + 8;
311  aom->ar_coeff_lag = get_bits(gb, 2);
312  num_y_coeffs = 2 * aom->ar_coeff_lag * (aom->ar_coeff_lag + 1);
313  if (aom->num_y_points) {
314  int ar_bits = get_bits(gb, 2) + 5;
315  for (i = 0; i < num_y_coeffs; i++)
316  aom->ar_coeffs_y[i] = get_bits(gb, ar_bits) - (1 << (ar_bits - 1));
317  }
318  for (uv = 0; uv < 2; uv++) {
319  if (aom->chroma_scaling_from_luma || aom->num_uv_points[uv]) {
320  int ar_bits = get_bits(gb, 2) + 5;
321  for (i = 0; i < num_y_coeffs + !!aom->num_y_points; i++)
322  aom->ar_coeffs_uv[uv][i] = get_bits(gb, ar_bits) - (1 << (ar_bits - 1));
323  }
324  }
325  aom->ar_coeff_shift = get_bits(gb, 2) + 6;
326  aom->grain_scale_shift = get_bits(gb, 2);
327  for (uv = 0; uv < 2; uv++) {
328  if (aom->num_uv_points[uv] && !predict_uv_scaling[uv]) {
329  aom->uv_mult[uv] = get_bits(gb, 8) - 128;
330  aom->uv_mult_luma[uv] = get_bits(gb, 8) - 128;
331  aom->uv_offset[uv] = get_bits(gb, 9) - 256;
332  }
333  }
334  aom->overlap_flag = get_bits1(gb);
335  aom->limit_output_range = get_bits1(gb);
336 
337  // use first set as reference only if it was fully transmitted
338  if (n == 0)
339  ref = fgp;
340 
341  payload_bits = get_bits_count(gb) - start_position;
342  if (payload_bits > payload_size * 8)
343  goto error;
344  skip_bits(gb, payload_size * 8 - payload_bits);
345 
346  av_buffer_unref(&s->sets[set_idx]);
347  s->sets[set_idx] = av_buffer_create((uint8_t *)fgp, fgp_size, NULL, NULL, 0);
348  if (!s->sets[set_idx])
349  goto error;
350  }
351  return 0;
352 
353 error:
354  av_free(fgp);
355  ff_aom_uninit_film_grain_params(s);
356  return AVERROR_INVALIDDATA;
357 }
358 
359 int ff_aom_attach_film_grain_sets(const AVFilmGrainAFGS1Params *s, AVFrame *frame)
360 {
361  if (!s->enable)
362  return 0;
363 
364  for (int i = 0; i < FF_ARRAY_ELEMS(s->sets); i++) {
365  if (!s->sets[i])
366  continue;
367 
368  if (!av_frame_side_data_add(&frame->side_data, &frame->nb_side_data,
369  AV_FRAME_DATA_FILM_GRAIN_PARAMS,
370  (AVBufferRef**)&s->sets[i],
371  AV_FRAME_SIDE_DATA_FLAG_NEW_REF))
372  return AVERROR(ENOMEM);
373  }
374 
375  return 0;
376 }
377 
378 void ff_aom_uninit_film_grain_params(AVFilmGrainAFGS1Params *s)
379 {
380  for (int i = 0; i < FF_ARRAY_ELEMS(s->sets); i++)
381  av_buffer_unref(&s->sets[i]);
382  s->enable = 0;
383 }
384 
385 // Taken from the AV1 spec. Range is [-2048, 2047], mean is 0 and stddev is 512
386 static const int16_t gaussian_sequence[2048] = {
387  56, 568, -180, 172, 124, -84, 172, -64, -900, 24, 820,
388  224, 1248, 996, 272, -8, -916, -388, -732, -104, -188, 800,
389  112, -652, -320, -376, 140, -252, 492, -168, 44, -788, 588,
390  -584, 500, -228, 12, 680, 272, -476, 972, -100, 652, 368,
391  432, -196, -720, -192, 1000, -332, 652, -136, -552, -604, -4,
392  192, -220, -136, 1000, -52, 372, -96, -624, 124, -24, 396,
393  540, -12, -104, 640, 464, 244, -208, -84, 368, -528, -740,
394  248, -968, -848, 608, 376, -60, -292, -40, -156, 252, -292,
395  248, 224, -280, 400, -244, 244, -60, 76, -80, 212, 532,
396  340, 128, -36, 824, -352, -60, -264, -96, -612, 416, -704,
397  220, -204, 640, -160, 1220, -408, 900, 336, 20, -336, -96,
398  -792, 304, 48, -28, -1232, -1172, -448, 104, -292, -520, 244,
399  60, -948, 0, -708, 268, 108, 356, -548, 488, -344, -136,
400  488, -196, -224, 656, -236, -1128, 60, 4, 140, 276, -676,
401  -376, 168, -108, 464, 8, 564, 64, 240, 308, -300, -400,
402  -456, -136, 56, 120, -408, -116, 436, 504, -232, 328, 844,
403  -164, -84, 784, -168, 232, -224, 348, -376, 128, 568, 96,
404  -1244, -288, 276, 848, 832, -360, 656, 464, -384, -332, -356,
405  728, -388, 160, -192, 468, 296, 224, 140, -776, -100, 280,
406  4, 196, 44, -36, -648, 932, 16, 1428, 28, 528, 808,
407  772, 20, 268, 88, -332, -284, 124, -384, -448, 208, -228,
408  -1044, -328, 660, 380, -148, -300, 588, 240, 540, 28, 136,
409  -88, -436, 256, 296, -1000, 1400, 0, -48, 1056, -136, 264,
410  -528, -1108, 632, -484, -592, -344, 796, 124, -668, -768, 388,
411  1296, -232, -188, -200, -288, -4, 308, 100, -168, 256, -500,
412  204, -508, 648, -136, 372, -272, -120, -1004, -552, -548, -384,
413  548, -296, 428, -108, -8, -912, -324, -224, -88, -112, -220,
414  -100, 996, -796, 548, 360, -216, 180, 428, -200, -212, 148,
415  96, 148, 284, 216, -412, -320, 120, -300, -384, -604, -572,
416  -332, -8, -180, -176, 696, 116, -88, 628, 76, 44, -516,
417  240, -208, -40, 100, -592, 344, -308, -452, -228, 20, 916,
418  -1752, -136, -340, -804, 140, 40, 512, 340, 248, 184, -492,
419  896, -156, 932, -628, 328, -688, -448, -616, -752, -100, 560,
420  -1020, 180, -800, -64, 76, 576, 1068, 396, 660, 552, -108,
421  -28, 320, -628, 312, -92, -92, -472, 268, 16, 560, 516,
422  -672, -52, 492, -100, 260, 384, 284, 292, 304, -148, 88,
423  -152, 1012, 1064, -228, 164, -376, -684, 592, -392, 156, 196,
424  -524, -64, -884, 160, -176, 636, 648, 404, -396, -436, 864,
425  424, -728, 988, -604, 904, -592, 296, -224, 536, -176, -920,
426  436, -48, 1176, -884, 416, -776, -824, -884, 524, -548, -564,
427  -68, -164, -96, 692, 364, -692, -1012, -68, 260, -480, 876,
428  -1116, 452, -332, -352, 892, -1088, 1220, -676, 12, -292, 244,
429  496, 372, -32, 280, 200, 112, -440, -96, 24, -644, -184,
430  56, -432, 224, -980, 272, -260, 144, -436, 420, 356, 364,
431  -528, 76, 172, -744, -368, 404, -752, -416, 684, -688, 72,
432  540, 416, 92, 444, 480, -72, -1416, 164, -1172, -68, 24,
433  424, 264, 1040, 128, -912, -524, -356, 64, 876, -12, 4,
434  -88, 532, 272, -524, 320, 276, -508, 940, 24, -400, -120,
435  756, 60, 236, -412, 100, 376, -484, 400, -100, -740, -108,
436  -260, 328, -268, 224, -200, -416, 184, -604, -564, -20, 296,
437  60, 892, -888, 60, 164, 68, -760, 216, -296, 904, -336,
438  -28, 404, -356, -568, -208, -1480, -512, 296, 328, -360, -164,
439  -1560, -776, 1156, -428, 164, -504, -112, 120, -216, -148, -264,
440  308, 32, 64, -72, 72, 116, 176, -64, -272, 460, -536,
441  -784, -280, 348, 108, -752, -132, 524, -540, -776, 116, -296,
442  -1196, -288, -560, 1040, -472, 116, -848, -1116, 116, 636, 696,
443  284, -176, 1016, 204, -864, -648, -248, 356, 972, -584, -204,
444  264, 880, 528, -24, -184, 116, 448, -144, 828, 524, 212,
445  -212, 52, 12, 200, 268, -488, -404, -880, 824, -672, -40,
446  908, -248, 500, 716, -576, 492, -576, 16, 720, -108, 384,
447  124, 344, 280, 576, -500, 252, 104, -308, 196, -188, -8,
448  1268, 296, 1032, -1196, 436, 316, 372, -432, -200, -660, 704,
449  -224, 596, -132, 268, 32, -452, 884, 104, -1008, 424, -1348,
450  -280, 4, -1168, 368, 476, 696, 300, -8, 24, 180, -592,
451  -196, 388, 304, 500, 724, -160, 244, -84, 272, -256, -420,
452  320, 208, -144, -156, 156, 364, 452, 28, 540, 316, 220,
453  -644, -248, 464, 72, 360, 32, -388, 496, -680, -48, 208,
454  -116, -408, 60, -604, -392, 548, -840, 784, -460, 656, -544,
455  -388, -264, 908, -800, -628, -612, -568, 572, -220, 164, 288,
456  -16, -308, 308, -112, -636, -760, 280, -668, 432, 364, 240,
457  -196, 604, 340, 384, 196, 592, -44, -500, 432, -580, -132,
458  636, -76, 392, 4, -412, 540, 508, 328, -356, -36, 16,
459  -220, -64, -248, -60, 24, -192, 368, 1040, 92, -24, -1044,
460  -32, 40, 104, 148, 192, -136, -520, 56, -816, -224, 732,
461  392, 356, 212, -80, -424, -1008, -324, 588, -1496, 576, 460,
462  -816, -848, 56, -580, -92, -1372, -112, -496, 200, 364, 52,
463  -140, 48, -48, -60, 84, 72, 40, 132, -356, -268, -104,
464  -284, -404, 732, -520, 164, -304, -540, 120, 328, -76, -460,
465  756, 388, 588, 236, -436, -72, -176, -404, -316, -148, 716,
466  -604, 404, -72, -88, -888, -68, 944, 88, -220, -344, 960,
467  472, 460, -232, 704, 120, 832, -228, 692, -508, 132, -476,
468  844, -748, -364, -44, 1116, -1104, -1056, 76, 428, 552, -692,
469  60, 356, 96, -384, -188, -612, -576, 736, 508, 892, 352,
470  -1132, 504, -24, -352, 324, 332, -600, -312, 292, 508, -144,
471  -8, 484, 48, 284, -260, -240, 256, -100, -292, -204, -44,
472  472, -204, 908, -188, -1000, -256, 92, 1164, -392, 564, 356,
473  652, -28, -884, 256, 484, -192, 760, -176, 376, -524, -452,
474  -436, 860, -736, 212, 124, 504, -476, 468, 76, -472, 552,
475  -692, -944, -620, 740, -240, 400, 132, 20, 192, -196, 264,
476  -668, -1012, -60, 296, -316, -828, 76, -156, 284, -768, -448,
477  -832, 148, 248, 652, 616, 1236, 288, -328, -400, -124, 588,
478  220, 520, -696, 1032, 768, -740, -92, -272, 296, 448, -464,
479  412, -200, 392, 440, -200, 264, -152, -260, 320, 1032, 216,
480  320, -8, -64, 156, -1016, 1084, 1172, 536, 484, -432, 132,
481  372, -52, -256, 84, 116, -352, 48, 116, 304, -384, 412,
482  924, -300, 528, 628, 180, 648, 44, -980, -220, 1320, 48,
483  332, 748, 524, -268, -720, 540, -276, 564, -344, -208, -196,
484  436, 896, 88, -392, 132, 80, -964, -288, 568, 56, -48,
485  -456, 888, 8, 552, -156, -292, 948, 288, 128, -716, -292,
486  1192, -152, 876, 352, -600, -260, -812, -468, -28, -120, -32,
487  -44, 1284, 496, 192, 464, 312, -76, -516, -380, -456, -1012,
488  -48, 308, -156, 36, 492, -156, -808, 188, 1652, 68, -120,
489  -116, 316, 160, -140, 352, 808, -416, 592, 316, -480, 56,
490  528, -204, -568, 372, -232, 752, -344, 744, -4, 324, -416,
491  -600, 768, 268, -248, -88, -132, -420, -432, 80, -288, 404,
492  -316, -1216, -588, 520, -108, 92, -320, 368, -480, -216, -92,
493  1688, -300, 180, 1020, -176, 820, -68, -228, -260, 436, -904,
494  20, 40, -508, 440, -736, 312, 332, 204, 760, -372, 728,
495  96, -20, -632, -520, -560, 336, 1076, -64, -532, 776, 584,
496  192, 396, -728, -520, 276, -188, 80, -52, -612, -252, -48,
497  648, 212, -688, 228, -52, -260, 428, -412, -272, -404, 180,
498  816, -796, 48, 152, 484, -88, -216, 988, 696, 188, -528,
499  648, -116, -180, 316, 476, 12, -564, 96, 476, -252, -364,
500  -376, -392, 556, -256, -576, 260, -352, 120, -16, -136, -260,
501  -492, 72, 556, 660, 580, 616, 772, 436, 424, -32, -324,
502  -1268, 416, -324, -80, 920, 160, 228, 724, 32, -516, 64,
503  384, 68, -128, 136, 240, 248, -204, -68, 252, -932, -120,
504  -480, -628, -84, 192, 852, -404, -288, -132, 204, 100, 168,
505  -68, -196, -868, 460, 1080, 380, -80, 244, 0, 484, -888,
506  64, 184, 352, 600, 460, 164, 604, -196, 320, -64, 588,
507  -184, 228, 12, 372, 48, -848, -344, 224, 208, -200, 484,
508  128, -20, 272, -468, -840, 384, 256, -720, -520, -464, -580,
509  112, -120, 644, -356, -208, -608, -528, 704, 560, -424, 392,
510  828, 40, 84, 200, -152, 0, -144, 584, 280, -120, 80,
511  -556, -972, -196, -472, 724, 80, 168, -32, 88, 160, -688,
512  0, 160, 356, 372, -776, 740, -128, 676, -248, -480, 4,
513  -364, 96, 544, 232, -1032, 956, 236, 356, 20, -40, 300,
514  24, -676, -596, 132, 1120, -104, 532, -1096, 568, 648, 444,
515  508, 380, 188, -376, -604, 1488, 424, 24, 756, -220, -192,
516  716, 120, 920, 688, 168, 44, -460, 568, 284, 1144, 1160,
517  600, 424, 888, 656, -356, -320, 220, 316, -176, -724, -188,
518  -816, -628, -348, -228, -380, 1012, -452, -660, 736, 928, 404,
519  -696, -72, -268, -892, 128, 184, -344, -780, 360, 336, 400,
520  344, 428, 548, -112, 136, -228, -216, -820, -516, 340, 92,
521  -136, 116, -300, 376, -244, 100, -316, -520, -284, -12, 824,
522  164, -548, -180, -128, 116, -924, -828, 268, -368, -580, 620,
523  192, 160, 0, -1676, 1068, 424, -56, -360, 468, -156, 720,
524  288, -528, 556, -364, 548, -148, 504, 316, 152, -648, -620,
525  -684, -24, -376, -384, -108, -920, -1032, 768, 180, -264, -508,
526  -1268, -260, -60, 300, -240, 988, 724, -376, -576, -212, -736,
527  556, 192, 1092, -620, -880, 376, -56, -4, -216, -32, 836,
528  268, 396, 1332, 864, -600, 100, 56, -412, -92, 356, 180,
529  884, -468, -436, 292, -388, -804, -704, -840, 368, -348, 140,
530  -724, 1536, 940, 372, 112, -372, 436, -480, 1136, 296, -32,
531  -228, 132, -48, -220, 868, -1016, -60, -1044, -464, 328, 916,
532  244, 12, -736, -296, 360, 468, -376, -108, -92, 788, 368,
533  -56, 544, 400, -672, -420, 728, 16, 320, 44, -284, -380,
534  -796, 488, 132, 204, -596, -372, 88, -152, -908, -636, -572,
535  -624, -116, -692, -200, -56, 276, -88, 484, -324, 948, 864,
536  1000, -456, -184, -276, 292, -296, 156, 676, 320, 160, 908,
537  -84, -1236, -288, -116, 260, -372, -644, 732, -756, -96, 84,
538  344, -520, 348, -688, 240, -84, 216, -1044, -136, -676, -396,
539  -1500, 960, -40, 176, 168, 1516, 420, -504, -344, -364, -360,
540  1216, -940, -380, -212, 252, -660, -708, 484, -444, -152, 928,
541  -120, 1112, 476, -260, 560, -148, -344, 108, -196, 228, -288,
542  504, 560, -328, -88, 288, -1008, 460, -228, 468, -836, -196,
543  76, 388, 232, 412, -1168, -716, -644, 756, -172, -356, -504,
544  116, 432, 528, 48, 476, -168, -608, 448, 160, -532, -272,
545  28, -676, -12, 828, 980, 456, 520, 104, -104, 256, -344,
546  -4, -28, -368, -52, -524, -572, -556, -200, 768, 1124, -208,
547  -512, 176, 232, 248, -148, -888, 604, -600, -304, 804, -156,
548  -212, 488, -192, -804, -256, 368, -360, -916, -328, 228, -240,
549  -448, -472, 856, -556, -364, 572, -12, -156, -368, -340, 432,
550  252, -752, -152, 288, 268, -580, -848, -592, 108, -76, 244,
551  312, -716, 592, -80, 436, 360, 4, -248, 160, 516, 584,
552  732, 44, -468, -280, -292, -156, -588, 28, 308, 912, 24,
553  124, 156, 180, -252, 944, -924, -772, -520, -428, -624, 300,
554  -212, -1144, 32, -724, 800, -1128, -212, -1288, -848, 180, -416,
555  440, 192, -576, -792, -76, -1080, 80, -532, -352, -132, 380,
556  -820, 148, 1112, 128, 164, 456, 700, -924, 144, -668, -384,
557  648, -832, 508, 552, -52, -100, -656, 208, -568, 748, -88,
558  680, 232, 300, 192, -408, -1012, -152, -252, -268, 272, -876,
559  -664, -648, -332, -136, 16, 12, 1152, -28, 332, -536, 320,
560  -672, -460, -316, 532, -260, 228, -40, 1052, -816, 180, 88,
561  -496, -556, -672, -368, 428, 92, 356, 404, -408, 252, 196,
562  -176, -556, 792, 268, 32, 372, 40, 96, -332, 328, 120,
563  372, -900, -40, 472, -264, -592, 952, 128, 656, 112, 664,
564  -232, 420, 4, -344, -464, 556, 244, -416, -32, 252, 0,
565  -412, 188, -696, 508, -476, 324, -1096, 656, -312, 560, 264,
566  -136, 304, 160, -64, -580, 248, 336, -720, 560, -348, -288,
567  -276, -196, -500, 852, -544, -236, -1128, -992, -776, 116, 56,
568  52, 860, 884, 212, -12, 168, 1020, 512, -552, 924, -148,
569  716, 188, 164, -340, -520, -184, 880, -152, -680, -208, -1156,
570  -300, -528, -472, 364, 100, -744, -1056, -32, 540, 280, 144,
571  -676, -32, -232, -280, -224, 96, 568, -76, 172, 148, 148,
572  104, 32, -296, -32, 788, -80, 32, -16, 280, 288, 944,
573  428, -484
574 };
AVCOL_PRI_RESERVED
@ AVCOL_PRI_RESERVED
Definition: pixfmt.h:623
error
static void error(const char *err)
Definition: target_bsf_fuzzer.c:32
aom_film_grain_template.c
r
const char * r
Definition: vf_curves.c:127
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
AVFilmGrainParams::bit_depth_luma
int bit_depth_luma
Intended bit depth, or 0 for unknown/unspecified.
Definition: film_grain_params.h:238
out
FILE * out
Definition: movenc.c:55
av_film_grain_params_alloc
AVFilmGrainParams * av_film_grain_params_alloc(size_t *size)
This file is part of FFmpeg.
Definition: film_grain_params.c:23
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3341
AVFilmGrainAOMParams::uv_points
uint8_t uv_points[2][10][2]
Definition: film_grain_params.h:63
get_bits_count
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:249
AV_FRAME_DATA_FILM_GRAIN_PARAMS
@ AV_FRAME_DATA_FILM_GRAIN_PARAMS
Film grain parameters for a frame, described by AVFilmGrainParams.
Definition: frame.h:188
get_random_number
static int get_random_number(const int bits, unsigned *const state)
Definition: aom_film_grain.c:37
AVFilmGrainParams::aom
AVFilmGrainAOMParams aom
Definition: film_grain_params.h:247
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:410
AVCOL_TRC_NB
@ AVCOL_TRC_NB
Not part of ABI.
Definition: pixfmt.h:666
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:750
AVCOL_SPC_NB
@ AVCOL_SPC_NB
Not part of ABI.
Definition: pixfmt.h:693
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:647
data
const char data[16]
Definition: mxf.c:149
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:528
AVFilmGrainParams::color_space
enum AVColorSpace color_space
Definition: film_grain_params.h:233
ff_aom_apply_film_grain
int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in, const AVFilmGrainParams *params)
Definition: aom_film_grain.c:68
AVFilmGrainParams::codec
union AVFilmGrainParams::@459 codec
Additional fields may be added both here and in any structure included.
AVFilmGrainParams::color_trc
enum AVColorTransferCharacteristic color_trc
Definition: film_grain_params.h:232
GRAIN_WIDTH
@ GRAIN_WIDTH
Definition: aom_film_grain.c:50
AVFilmGrainParams::seed
uint64_t seed
Seed to use for the synthesis process, if the codec allows for it.
Definition: film_grain_params.h:213
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:507
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:431
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
bit
#define bit(string, value)
Definition: cbs_mpeg2.c:56
skip_bits
static void skip_bits(GetBitContext *s, int n)
Definition: get_bits.h:364
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:318
AVCOL_SPC_RESERVED
@ AVCOL_SPC_RESERVED
reserved for future use by ITU-T and ISO/IEC just like 15-255 are
Definition: pixfmt.h:677
AVFilmGrainAOMParams::grain_scale_shift
int grain_scale_shift
Signals the down shift applied to the generated gaussian numbers during synthesis.
Definition: film_grain_params.h:99
GetBitContext
Definition: get_bits.h:108
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:526
AVFilmGrainAOMParams::limit_output_range
int limit_output_range
Signals to clip to limited color levels after film grain application.
Definition: film_grain_params.h:122
AVFilmGrainAOMParams::num_y_points
int num_y_points
Number of points, and the scale and value for each point of the piecewise linear scaling function for...
Definition: film_grain_params.h:49
AVFilmGrainAOMParams
This structure describes how to handle film grain synthesis for AOM codecs.
Definition: film_grain_params.h:44
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:531
AVFilmGrainParams::bit_depth_chroma
int bit_depth_chroma
Definition: film_grain_params.h:239
avassert.h
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
init_get_bits8
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:528
AVFilmGrainParams::width
int width
Intended display resolution.
Definition: film_grain_params.h:220
AVCOL_PRI_RESERVED0
@ AVCOL_PRI_RESERVED0
Definition: pixfmt.h:620
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:86
AV_FRAME_SIDE_DATA_FLAG_NEW_REF
#define AV_FRAME_SIDE_DATA_FLAG_NEW_REF
Create a new reference to the passed in buffer instead of taking ownership of it.
Definition: frame.h:1034
s
#define s(width, name)
Definition: cbs_vp9.c:198
AVCOL_PRI_NB
@ AVCOL_PRI_NB
Not part of ABI.
Definition: pixfmt.h:637
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:60
bits
uint8_t bits
Definition: vp3data.h:128
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:525
state
static struct @492 state
get_bits.h
ff_aom_uninit_film_grain_params
void ff_aom_uninit_film_grain_params(AVFilmGrainAFGS1Params *s)
Definition: aom_film_grain.c:378
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:73
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:622
AV_FILM_GRAIN_PARAMS_NONE
@ AV_FILM_GRAIN_PARAMS_NONE
Definition: film_grain_params.h:25
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:87
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:508
AVFilmGrainAOMParams::uv_mult_luma
int uv_mult_luma[2]
Definition: film_grain_params.h:106
AVCOL_TRC_RESERVED0
@ AVCOL_TRC_RESERVED0
Definition: pixfmt.h:645
NULL
#define NULL
Definition: coverity.c:32
av_buffer_unref
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it.
Definition: buffer.c:139
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:85
get_bits1
static unsigned int get_bits1(GetBitContext *s)
Definition: get_bits.h:371
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:529
aom_film_grain.h
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AVFilmGrainParams::subsampling_x
int subsampling_x
Intended subsampling ratio, or 0 for luma-only streams.
Definition: film_grain_params.h:225
gaussian_sequence
static const int16_t gaussian_sequence[2048]
Definition: aom_film_grain.c:57
SUB_GRAIN_WIDTH
@ SUB_GRAIN_WIDTH
Definition: aom_film_grain.c:52
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:716
ff_aom_attach_film_grain_sets
int ff_aom_attach_film_grain_sets(const AVFilmGrainAFGS1Params *s, AVFrame *frame)
Definition: aom_film_grain.c:359
av_buffer_create
AVBufferRef * av_buffer_create(uint8_t *data, size_t size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
Definition: buffer.c:55
FG_BLOCK_SIZE
@ FG_BLOCK_SIZE
Definition: aom_film_grain.c:54
AVFilmGrainAOMParams::num_uv_points
int num_uv_points[2]
If chroma_scaling_from_luma is set to 0, signals the chroma scaling function parameters.
Definition: film_grain_params.h:62
round2
static int round2(const int x, const uint64_t shift)
Definition: aom_film_grain.c:45
shift
static int shift(int a, int b)
Definition: bonk.c:261
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:533
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:535
AVFilmGrainParams
This structure describes how to handle film grain synthesis in video for specific codecs.
Definition: film_grain_params.h:201
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:497
buffer.h
ff_aom_parse_film_grain_sets
int ff_aom_parse_film_grain_sets(AVFilmGrainAFGS1Params *s, const uint8_t *payload, int payload_size)
Definition: aom_film_grain.c:124
AVFilmGrainAOMParams::ar_coeffs_y
int8_t ar_coeffs_y[24]
Luma auto-regression coefficients.
Definition: film_grain_params.h:80
AVFilmGrainParams::color_primaries
enum AVColorPrimaries color_primaries
Definition: film_grain_params.h:231
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVFilmGrainParams::subsampling_y
int subsampling_y
Definition: film_grain_params.h:225
AVFilmGrainAOMParams::scaling_shift
int scaling_shift
Specifies the shift applied to the chroma components.
Definition: film_grain_params.h:69
SUB_GRAIN_HEIGHT
@ SUB_GRAIN_HEIGHT
Definition: aom_film_grain.c:53
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:676
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:733
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:527
AVFilmGrainParams::height
int height
Definition: film_grain_params.h:220
ret
ret
Definition: filter_design.txt:187
pred
static const float pred[4]
Definition: siprdata.h:259
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:532
AVFilmGrainAOMParams::ar_coeff_lag
int ar_coeff_lag
Specifies the auto-regression lag.
Definition: film_grain_params.h:74
AVFilmGrainAOMParams::y_points
uint8_t y_points[14][2]
Definition: film_grain_params.h:50
AVFilmGrainAOMParams::uv_offset
int uv_offset[2]
Offset used for component scaling function.
Definition: film_grain_params.h:112
AVFilmGrainAOMParams::uv_mult
int uv_mult[2]
Specifies the luma/chroma multipliers for the index to the component scaling function.
Definition: film_grain_params.h:105
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:117
av_clip_uint8
#define av_clip_uint8
Definition: common.h:106
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
AVFilmGrainParams::color_range
enum AVColorRange color_range
Intended video signal characteristics.
Definition: film_grain_params.h:230
AVFilmGrainAOMParams::overlap_flag
int overlap_flag
Signals whether to overlap film grain blocks.
Definition: film_grain_params.h:117
desc
const char * desc
Definition: libsvtav1.c:79
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
mem.h
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AVCOL_TRC_RESERVED
@ AVCOL_TRC_RESERVED
Definition: pixfmt.h:648
GRAIN_HEIGHT
@ GRAIN_HEIGHT
Definition: aom_film_grain.c:51
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
AVFilmGrainAFGS1Params
Definition: aom_film_grain.h:34
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:455
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:509
AVFilmGrainAOMParams::chroma_scaling_from_luma
int chroma_scaling_from_luma
Signals whether to derive the chroma scaling function from the luma.
Definition: film_grain_params.h:56
AV_FILM_GRAIN_PARAMS_AV1
@ AV_FILM_GRAIN_PARAMS_AV1
The union is valid when interpreted as AVFilmGrainAOMParams (codec.aom)
Definition: film_grain_params.h:30
AVFilmGrainParams::type
enum AVFilmGrainParamsType type
Specifies the codec for which this structure is valid.
Definition: film_grain_params.h:205
av_frame_side_data_add
AVFrameSideData * av_frame_side_data_add(AVFrameSideData ***sd, int *nb_sd, enum AVFrameSideDataType type, AVBufferRef **buf, unsigned int flags)
Add a new side data entry to an array from an existing AVBufferRef.
Definition: side_data.c:221
AVFilmGrainAOMParams::ar_coeff_shift
int ar_coeff_shift
Specifies the range of the auto-regressive coefficients.
Definition: film_grain_params.h:93
AVFilmGrainAOMParams::ar_coeffs_uv
int8_t ar_coeffs_uv[2][25]
Chroma auto-regression coefficients.
Definition: film_grain_params.h:86
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