FFmpeg
libdav1d.c
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1 /*
2  * Copyright (c) 2018 Ronald S. Bultje <rsbultje gmail com>
3  * Copyright (c) 2018 James Almer <jamrial gmail com>
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 #include <dav1d/dav1d.h>
23 
24 #include "libavutil/avassert.h"
25 #include "libavutil/cpu.h"
28 #include "libavutil/imgutils.h"
29 #include "libavutil/opt.h"
30 
31 #include "atsc_a53.h"
32 #include "avcodec.h"
33 #include "bytestream.h"
34 #include "decode.h"
35 #include "internal.h"
36 
37 #define FF_DAV1D_VERSION_AT_LEAST(x,y) \
38  (DAV1D_API_VERSION_MAJOR > (x) || DAV1D_API_VERSION_MAJOR == (x) && DAV1D_API_VERSION_MINOR >= (y))
39 
40 typedef struct Libdav1dContext {
41  AVClass *class;
42  Dav1dContext *c;
44  int pool_size;
45 
46  Dav1dData data;
53 
54 static const enum AVPixelFormat pix_fmt[][3] = {
55  [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
56  [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
57  [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
58  [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
59 };
60 
61 static const enum AVPixelFormat pix_fmt_rgb[3] = {
63 };
64 
65 static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
66 {
67  AVCodecContext *c = opaque;
68 
69  av_vlog(c, AV_LOG_ERROR, fmt, vl);
70 }
71 
72 static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
73 {
74  Libdav1dContext *dav1d = cookie;
75  enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
76  int ret, linesize[4], h = FFALIGN(p->p.h, 128), w = FFALIGN(p->p.w, 128);
77  uint8_t *aligned_ptr, *data[4];
78  AVBufferRef *buf;
79 
80  ret = av_image_get_buffer_size(format, w, h, DAV1D_PICTURE_ALIGNMENT);
81  if (ret < 0)
82  return ret;
83 
84  if (ret != dav1d->pool_size) {
85  av_buffer_pool_uninit(&dav1d->pool);
86  // Use twice the amount of required padding bytes for aligned_ptr below.
87  dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
88  if (!dav1d->pool) {
89  dav1d->pool_size = 0;
90  return AVERROR(ENOMEM);
91  }
92  dav1d->pool_size = ret;
93  }
94  buf = av_buffer_pool_get(dav1d->pool);
95  if (!buf)
96  return AVERROR(ENOMEM);
97 
98  // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
99  // doesn't guarantee for example when AVX is disabled at configure time.
100  // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
101  // if required.
102  aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
103  ret = av_image_fill_arrays(data, linesize, aligned_ptr, format, w, h,
104  DAV1D_PICTURE_ALIGNMENT);
105  if (ret < 0) {
106  av_buffer_unref(&buf);
107  return ret;
108  }
109 
110  p->data[0] = data[0];
111  p->data[1] = data[1];
112  p->data[2] = data[2];
113  p->stride[0] = linesize[0];
114  p->stride[1] = linesize[1];
115  p->allocator_data = buf;
116 
117  return 0;
118 }
119 
120 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
121 {
122  AVBufferRef *buf = p->allocator_data;
123 
124  av_buffer_unref(&buf);
125 }
126 
127 static void libdav1d_init_params(AVCodecContext *c, const Dav1dSequenceHeader *seq)
128 {
129  c->profile = seq->profile;
130  c->level = ((seq->operating_points[0].major_level - 2) << 2)
131  | seq->operating_points[0].minor_level;
132 
133  switch (seq->chr) {
134  case DAV1D_CHR_VERTICAL:
135  c->chroma_sample_location = AVCHROMA_LOC_LEFT;
136  break;
137  case DAV1D_CHR_COLOCATED:
138  c->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
139  break;
140  }
141  c->colorspace = (enum AVColorSpace) seq->mtrx;
142  c->color_primaries = (enum AVColorPrimaries) seq->pri;
143  c->color_trc = (enum AVColorTransferCharacteristic) seq->trc;
144  c->color_range = seq->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
145 
146  if (seq->layout == DAV1D_PIXEL_LAYOUT_I444 &&
147  seq->mtrx == DAV1D_MC_IDENTITY &&
148  seq->pri == DAV1D_COLOR_PRI_BT709 &&
149  seq->trc == DAV1D_TRC_SRGB)
150  c->pix_fmt = pix_fmt_rgb[seq->hbd];
151  else
152  c->pix_fmt = pix_fmt[seq->layout][seq->hbd];
153 
154  if (seq->num_units_in_tick && seq->time_scale) {
155  av_reduce(&c->framerate.den, &c->framerate.num,
156  seq->num_units_in_tick, seq->time_scale, INT_MAX);
157  if (seq->equal_picture_interval)
158  c->ticks_per_frame = seq->num_ticks_per_picture;
159  }
160 
161  if (seq->film_grain_present)
162  c->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
163  else
164  c->properties &= ~FF_CODEC_PROPERTY_FILM_GRAIN;
165 }
166 
168 {
169  Dav1dSequenceHeader seq;
170  size_t offset = 0;
171  int res;
172 
173  if (!c->extradata || c->extradata_size <= 0)
174  return 0;
175 
176  if (c->extradata[0] & 0x80) {
177  int version = c->extradata[0] & 0x7F;
178 
179  if (version != 1 || c->extradata_size < 4) {
180  int explode = !!(c->err_recognition & AV_EF_EXPLODE);
181  av_log(c, explode ? AV_LOG_ERROR : AV_LOG_WARNING,
182  "Error decoding extradata\n");
183  return explode ? AVERROR_INVALIDDATA : 0;
184  }
185 
186  // Do nothing if there are no configOBUs to parse
187  if (c->extradata_size == 4)
188  return 0;
189 
190  offset = 4;
191  }
192 
193  res = dav1d_parse_sequence_header(&seq, c->extradata + offset,
194  c->extradata_size - offset);
195  if (res < 0)
196  return 0; // Assume no seqhdr OBUs are present
197 
198  libdav1d_init_params(c, &seq);
199  res = ff_set_dimensions(c, seq.max_width, seq.max_height);
200  if (res < 0)
201  return res;
202 
203  return 0;
204 }
205 
207 {
208  Libdav1dContext *dav1d = c->priv_data;
209  Dav1dSettings s;
210 #if FF_DAV1D_VERSION_AT_LEAST(6,0)
211  int threads = c->thread_count;
212 #else
213  int threads = (c->thread_count ? c->thread_count : av_cpu_count()) * 3 / 2;
214 #endif
215  int res;
216 
217  av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
218 
219  dav1d_default_settings(&s);
220  s.logger.cookie = c;
221  s.logger.callback = libdav1d_log_callback;
222  s.allocator.cookie = dav1d;
223  s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
224  s.allocator.release_picture_callback = libdav1d_picture_release;
225  s.frame_size_limit = c->max_pixels;
226  if (dav1d->apply_grain >= 0)
227  s.apply_grain = dav1d->apply_grain;
228  else if (c->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN)
229  s.apply_grain = 0;
230 
231  s.all_layers = dav1d->all_layers;
232  if (dav1d->operating_point >= 0)
233  s.operating_point = dav1d->operating_point;
234 
235 #if FF_DAV1D_VERSION_AT_LEAST(6,0)
236  if (dav1d->frame_threads || dav1d->tile_threads)
237  s.n_threads = FFMAX(dav1d->frame_threads, dav1d->tile_threads);
238  else
239  s.n_threads = FFMIN(threads, DAV1D_MAX_THREADS);
240  s.max_frame_delay = (c->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : 0;
241  av_log(c, AV_LOG_DEBUG, "Using %d threads, %d max_frame_delay\n",
242  s.n_threads, s.max_frame_delay);
243 #else
244  s.n_tile_threads = dav1d->tile_threads
245  ? dav1d->tile_threads
246  : FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
247  s.n_frame_threads = dav1d->frame_threads
248  ? dav1d->frame_threads
249  : FFMIN(ceil(threads / s.n_tile_threads), DAV1D_MAX_FRAME_THREADS);
250  av_log(c, AV_LOG_DEBUG, "Using %d frame threads, %d tile threads\n",
251  s.n_frame_threads, s.n_tile_threads);
252 #endif
253 
255  if (res < 0)
256  return res;
257 
258  res = dav1d_open(&dav1d->c, &s);
259  if (res < 0)
260  return AVERROR(ENOMEM);
261 
262  return 0;
263 }
264 
266 {
267  Libdav1dContext *dav1d = c->priv_data;
268 
269  dav1d_data_unref(&dav1d->data);
270  dav1d_flush(dav1d->c);
271 }
272 
273 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
274  AVBufferRef *buf = opaque;
275 
276  av_buffer_unref(&buf);
277 }
278 
279 static void libdav1d_user_data_free(const uint8_t *data, void *opaque) {
280  av_assert0(data == opaque);
281  av_free(opaque);
282 }
283 
285 {
286  Libdav1dContext *dav1d = c->priv_data;
287  Dav1dData *data = &dav1d->data;
288  Dav1dPicture pic = { 0 }, *p = &pic;
289 #if FF_DAV1D_VERSION_AT_LEAST(5,1)
290  enum Dav1dEventFlags event_flags = 0;
291 #endif
292  int res;
293 
294  if (!data->sz) {
295  AVPacket pkt = { 0 };
296 
297  res = ff_decode_get_packet(c, &pkt);
298  if (res < 0 && res != AVERROR_EOF)
299  return res;
300 
301  if (pkt.size) {
302  res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
303  if (res < 0) {
305  return res;
306  }
307 
308  data->m.timestamp = pkt.pts;
309  data->m.offset = pkt.pos;
310  data->m.duration = pkt.duration;
311 
312  pkt.buf = NULL;
314 
315  if (c->reordered_opaque != AV_NOPTS_VALUE) {
316  uint8_t *reordered_opaque = av_malloc(sizeof(c->reordered_opaque));
317  if (!reordered_opaque) {
318  dav1d_data_unref(data);
319  return AVERROR(ENOMEM);
320  }
321 
322  memcpy(reordered_opaque, &c->reordered_opaque, sizeof(c->reordered_opaque));
323  res = dav1d_data_wrap_user_data(data, reordered_opaque,
324  libdav1d_user_data_free, reordered_opaque);
325  if (res < 0) {
326  av_free(reordered_opaque);
327  dav1d_data_unref(data);
328  return res;
329  }
330  }
331  }
332  }
333 
334  res = dav1d_send_data(dav1d->c, data);
335  if (res < 0) {
336  if (res == AVERROR(EINVAL))
337  res = AVERROR_INVALIDDATA;
338  if (res != AVERROR(EAGAIN))
339  return res;
340  }
341 
342  res = dav1d_get_picture(dav1d->c, p);
343  if (res < 0) {
344  if (res == AVERROR(EINVAL))
345  res = AVERROR_INVALIDDATA;
346  else if (res == AVERROR(EAGAIN) && c->internal->draining)
347  res = AVERROR_EOF;
348 
349  return res;
350  }
351 
352  av_assert0(p->data[0] && p->allocator_data);
353 
354  // This requires the custom allocator above
355  frame->buf[0] = av_buffer_ref(p->allocator_data);
356  if (!frame->buf[0]) {
357  dav1d_picture_unref(p);
358  return AVERROR(ENOMEM);
359  }
360 
361  frame->data[0] = p->data[0];
362  frame->data[1] = p->data[1];
363  frame->data[2] = p->data[2];
364  frame->linesize[0] = p->stride[0];
365  frame->linesize[1] = p->stride[1];
366  frame->linesize[2] = p->stride[1];
367 
368 #if FF_DAV1D_VERSION_AT_LEAST(5,1)
369  dav1d_get_event_flags(dav1d->c, &event_flags);
370  if (event_flags & DAV1D_EVENT_FLAG_NEW_SEQUENCE)
371 #endif
372  libdav1d_init_params(c, p->seq_hdr);
373  res = ff_decode_frame_props(c, frame);
374  if (res < 0)
375  goto fail;
376 
377  frame->width = p->p.w;
378  frame->height = p->p.h;
379  if (c->width != p->p.w || c->height != p->p.h) {
380  res = ff_set_dimensions(c, p->p.w, p->p.h);
381  if (res < 0)
382  goto fail;
383  }
384 
385  av_reduce(&frame->sample_aspect_ratio.num,
386  &frame->sample_aspect_ratio.den,
387  frame->height * (int64_t)p->frame_hdr->render_width,
388  frame->width * (int64_t)p->frame_hdr->render_height,
389  INT_MAX);
390  ff_set_sar(c, frame->sample_aspect_ratio);
391 
392  if (p->m.user_data.data)
393  memcpy(&frame->reordered_opaque, p->m.user_data.data, sizeof(frame->reordered_opaque));
394  else
395  frame->reordered_opaque = AV_NOPTS_VALUE;
396 
397  // match timestamps and packet size
398  frame->pts = p->m.timestamp;
399  frame->pkt_dts = p->m.timestamp;
400  frame->pkt_pos = p->m.offset;
401  frame->pkt_size = p->m.size;
402  frame->pkt_duration = p->m.duration;
403  frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
404 
405  switch (p->frame_hdr->frame_type) {
406  case DAV1D_FRAME_TYPE_KEY:
407  case DAV1D_FRAME_TYPE_INTRA:
408  frame->pict_type = AV_PICTURE_TYPE_I;
409  break;
410  case DAV1D_FRAME_TYPE_INTER:
411  frame->pict_type = AV_PICTURE_TYPE_P;
412  break;
413  case DAV1D_FRAME_TYPE_SWITCH:
414  frame->pict_type = AV_PICTURE_TYPE_SP;
415  break;
416  default:
417  res = AVERROR_INVALIDDATA;
418  goto fail;
419  }
420 
421  if (p->mastering_display) {
423  if (!mastering) {
424  res = AVERROR(ENOMEM);
425  goto fail;
426  }
427 
428  for (int i = 0; i < 3; i++) {
429  mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
430  mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
431  }
432  mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
433  mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
434 
435  mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
436  mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
437 
438  mastering->has_primaries = 1;
439  mastering->has_luminance = 1;
440  }
441  if (p->content_light) {
443  if (!light) {
444  res = AVERROR(ENOMEM);
445  goto fail;
446  }
447  light->MaxCLL = p->content_light->max_content_light_level;
448  light->MaxFALL = p->content_light->max_frame_average_light_level;
449  }
450  if (p->itut_t35) {
451  GetByteContext gb;
452  unsigned int user_identifier;
453 
454  bytestream2_init(&gb, p->itut_t35->payload, p->itut_t35->payload_size);
455  bytestream2_skip(&gb, 1); // terminal provider code
456  bytestream2_skip(&gb, 1); // terminal provider oriented code
457  user_identifier = bytestream2_get_be32(&gb);
458  switch (user_identifier) {
459  case MKBETAG('G', 'A', '9', '4'): { // closed captions
460  AVBufferRef *buf = NULL;
461 
462  res = ff_parse_a53_cc(&buf, gb.buffer, bytestream2_get_bytes_left(&gb));
463  if (res < 0)
464  goto fail;
465  if (!res)
466  break;
467 
469  av_buffer_unref(&buf);
470 
471  c->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
472  break;
473  }
474  default: // ignore unsupported identifiers
475  break;
476  }
477  }
478  if (p->frame_hdr->film_grain.present && (!dav1d->apply_grain ||
479  (c->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN))) {
481  if (!fgp) {
482  res = AVERROR(ENOMEM);
483  goto fail;
484  }
485 
487  fgp->seed = p->frame_hdr->film_grain.data.seed;
488  fgp->codec.aom.num_y_points = p->frame_hdr->film_grain.data.num_y_points;
489  fgp->codec.aom.chroma_scaling_from_luma = p->frame_hdr->film_grain.data.chroma_scaling_from_luma;
490  fgp->codec.aom.scaling_shift = p->frame_hdr->film_grain.data.scaling_shift;
491  fgp->codec.aom.ar_coeff_lag = p->frame_hdr->film_grain.data.ar_coeff_lag;
492  fgp->codec.aom.ar_coeff_shift = p->frame_hdr->film_grain.data.ar_coeff_shift;
493  fgp->codec.aom.grain_scale_shift = p->frame_hdr->film_grain.data.grain_scale_shift;
494  fgp->codec.aom.overlap_flag = p->frame_hdr->film_grain.data.overlap_flag;
495  fgp->codec.aom.limit_output_range = p->frame_hdr->film_grain.data.clip_to_restricted_range;
496 
497  memcpy(&fgp->codec.aom.y_points, &p->frame_hdr->film_grain.data.y_points,
498  sizeof(fgp->codec.aom.y_points));
499  memcpy(&fgp->codec.aom.num_uv_points, &p->frame_hdr->film_grain.data.num_uv_points,
500  sizeof(fgp->codec.aom.num_uv_points));
501  memcpy(&fgp->codec.aom.uv_points, &p->frame_hdr->film_grain.data.uv_points,
502  sizeof(fgp->codec.aom.uv_points));
503  memcpy(&fgp->codec.aom.ar_coeffs_y, &p->frame_hdr->film_grain.data.ar_coeffs_y,
504  sizeof(fgp->codec.aom.ar_coeffs_y));
505  memcpy(&fgp->codec.aom.ar_coeffs_uv[0], &p->frame_hdr->film_grain.data.ar_coeffs_uv[0],
506  sizeof(fgp->codec.aom.ar_coeffs_uv[0]));
507  memcpy(&fgp->codec.aom.ar_coeffs_uv[1], &p->frame_hdr->film_grain.data.ar_coeffs_uv[1],
508  sizeof(fgp->codec.aom.ar_coeffs_uv[1]));
509  memcpy(&fgp->codec.aom.uv_mult, &p->frame_hdr->film_grain.data.uv_mult,
510  sizeof(fgp->codec.aom.uv_mult));
511  memcpy(&fgp->codec.aom.uv_mult_luma, &p->frame_hdr->film_grain.data.uv_luma_mult,
512  sizeof(fgp->codec.aom.uv_mult_luma));
513  memcpy(&fgp->codec.aom.uv_offset, &p->frame_hdr->film_grain.data.uv_offset,
514  sizeof(fgp->codec.aom.uv_offset));
515  }
516 
517  res = 0;
518 fail:
519  dav1d_picture_unref(p);
520  if (res < 0)
522  return res;
523 }
524 
526 {
527  Libdav1dContext *dav1d = c->priv_data;
528 
529  av_buffer_pool_uninit(&dav1d->pool);
530  dav1d_data_unref(&dav1d->data);
531  dav1d_close(&dav1d->c);
532 
533  return 0;
534 }
535 
536 #ifndef DAV1D_MAX_FRAME_THREADS
537 #define DAV1D_MAX_FRAME_THREADS DAV1D_MAX_THREADS
538 #endif
539 #ifndef DAV1D_MAX_TILE_THREADS
540 #define DAV1D_MAX_TILE_THREADS DAV1D_MAX_THREADS
541 #endif
542 
543 #define OFFSET(x) offsetof(Libdav1dContext, x)
544 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
545 static const AVOption libdav1d_options[] = {
546  { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD | AV_OPT_FLAG_DEPRECATED },
547  { "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD | AV_OPT_FLAG_DEPRECATED },
548  { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD | AV_OPT_FLAG_DEPRECATED },
549  { "oppoint", "Select an operating point of the scalable bitstream", OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 31, VD },
550  { "alllayers", "Output all spatial layers", OFFSET(all_layers), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
551  { NULL }
552 };
553 
554 static const AVClass libdav1d_class = {
555  .class_name = "libdav1d decoder",
556  .item_name = av_default_item_name,
557  .option = libdav1d_options,
558  .version = LIBAVUTIL_VERSION_INT,
559 };
560 
562  .name = "libdav1d",
563  .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
564  .type = AVMEDIA_TYPE_VIDEO,
565  .id = AV_CODEC_ID_AV1,
566  .priv_data_size = sizeof(Libdav1dContext),
567  .init = libdav1d_init,
568  .close = libdav1d_close,
574  .priv_class = &libdav1d_class,
575  .wrapper_name = "libdav1d",
576 };
Libdav1dContext::c
Dav1dContext * c
Definition: libdav1d.c:42
av_vlog
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level.
Definition: log.c:424
AVMasteringDisplayMetadata::has_primaries
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
Definition: mastering_display_metadata.h:62
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:417
Libdav1dContext::pool_size
int pool_size
Definition: libdav1d.c:44
AVCodec
AVCodec.
Definition: codec.h:202
av_buffer_pool_init
AVBufferPool * av_buffer_pool_init(size_t size, AVBufferRef *(*alloc)(size_t size))
Allocate and initialize a buffer pool.
Definition: buffer.c:280
ff_decode_get_packet
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
Called by decoders to get the next packet for decoding.
Definition: decode.c:224
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:42
AVMasteringDisplayMetadata::max_luminance
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:57
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
FF_CODEC_CAP_SETS_PKT_DTS
#define FF_CODEC_CAP_SETS_PKT_DTS
Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set AVFrame.pkt_dts manually.
Definition: internal.h:57
libdav1d_picture_allocator
static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:72
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
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
opt.h
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:476
libdav1d_class
static const AVClass libdav1d_class
Definition: libdav1d.c:554
GetByteContext
Definition: bytestream.h:33
AVBufferPool
The buffer pool.
Definition: buffer_internal.h:89
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
AV_FRAME_DATA_A53_CC
@ AV_FRAME_DATA_A53_CC
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:58
AVMasteringDisplayMetadata::display_primaries
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
Definition: mastering_display_metadata.h:42
AVMasteringDisplayMetadata::has_luminance
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
Definition: mastering_display_metadata.h:67
AVFilmGrainAOMParams::uv_points
uint8_t uv_points[2][10][2]
Definition: film_grain_params.h:63
AVContentLightMetadata::MaxCLL
unsigned MaxCLL
Max content light level (cd/m^2).
Definition: mastering_display_metadata.h:102
AVFilmGrainParams::aom
AVFilmGrainAOMParams aom
Definition: film_grain_params.h:236
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
w
uint8_t w
Definition: llviddspenc.c:38
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:579
internal.h
AVPacket::data
uint8_t * data
Definition: packet.h:373
AVOption
AVOption.
Definition: opt.h:247
data
const char data[16]
Definition: mxf.c:143
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:391
libdav1d_user_data_free
static void libdav1d_user_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:279
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:391
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
av_buffer_ref
AVBufferRef * av_buffer_ref(const AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:103
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:451
AVFilmGrainParams::seed
uint64_t seed
Seed to use for the synthesis process, if the codec allows for it.
Definition: film_grain_params.h:228
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
AVContentLightMetadata
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
Definition: mastering_display_metadata.h:98
bytestream2_skip
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
Definition: bytestream.h:168
fail
#define fail()
Definition: checkasm.h:127
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
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:407
libdav1d_init_params
static void libdav1d_init_params(AVCodecContext *c, const Dav1dSequenceHeader *seq)
Definition: libdav1d.c:127
libdav1d_init
static av_cold int libdav1d_init(AVCodecContext *c)
Definition: libdav1d.c:206
AV_CODEC_FLAG_LOW_DELAY
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:264
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
Libdav1dContext::tile_threads
int tile_threads
Definition: libdav1d.c:47
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
av_reduce
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:394
DAV1D_MAX_FRAME_THREADS
#define DAV1D_MAX_FRAME_THREADS
Definition: libdav1d.c:537
avassert.h
ceil
static __device__ float ceil(float a)
Definition: cuda_runtime.h:176
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
film_grain_params.h
av_cold
#define av_cold
Definition: attributes.h:90
av_buffer_pool_get
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:387
AVMasteringDisplayMetadata::white_point
AVRational white_point[2]
CIE 1931 xy chromaticity coords of white point.
Definition: mastering_display_metadata.h:47
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVFilmGrainParams::codec
union AVFilmGrainParams::@293 codec
Additional fields may be added both here and in any structure included.
floor
static __device__ float floor(float a)
Definition: cuda_runtime.h:173
AV_CODEC_CAP_OTHER_THREADS
#define AV_CODEC_CAP_OTHER_THREADS
Codec supports multithreading through a method other than slice- or frame-level multithreading.
Definition: codec.h:127
av_film_grain_params_create_side_data
AVFilmGrainParams * av_film_grain_params_create_side_data(AVFrame *frame)
Allocate a complete AVFilmGrainParams and add it to the frame.
Definition: film_grain_params.c:31
GetByteContext::buffer
const uint8_t * buffer
Definition: bytestream.h:34
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
decode.h
Libdav1dContext
Definition: libdav1d.c:40
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:66
FF_CODEC_PROPERTY_FILM_GRAIN
#define FF_CODEC_PROPERTY_FILM_GRAIN
Definition: avcodec.h:1825
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:372
if
if(ret)
Definition: filter_design.txt:179
AVFilmGrainAOMParams::uv_mult_luma
int uv_mult_luma[2]
Definition: film_grain_params.h:106
ff_parse_a53_cc
int ff_parse_a53_cc(AVBufferRef **pbuf, const uint8_t *data, int size)
Parse a data array for ATSC A53 Part 4 Closed Captions and store them in an AVBufferRef.
Definition: atsc_a53.c:68
AVPacket::buf
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: packet.h:356
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
flush
static void flush(AVCodecContext *avctx)
Definition: aacdec_template.c:593
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_CODEC_ID_AV1
@ AV_CODEC_ID_AV1
Definition: codec_id.h:279
AVCHROMA_LOC_LEFT
@ AVCHROMA_LOC_LEFT
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:600
AVCHROMA_LOC_TOPLEFT
@ AVCHROMA_LOC_TOPLEFT
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:602
receive_frame
static CopyRet receive_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame)
Definition: crystalhd.c:555
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
av_buffer_pool_uninit
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:322
libdav1d_picture_release
static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:120
av_frame_new_side_data_from_buf
AVFrameSideData * av_frame_new_side_data_from_buf(AVFrame *frame, enum AVFrameSideDataType type, AVBufferRef *buf)
Add a new side data to a frame from an existing AVBufferRef.
Definition: frame.c:573
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:392
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_EF_EXPLODE
#define AV_EF_EXPLODE
abort decoding on minor error detection
Definition: avcodec.h:1335
AV_PICTURE_TYPE_SP
@ AV_PICTURE_TYPE_SP
Switching Predicted.
Definition: avutil.h:279
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
bytestream2_get_bytes_left
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
Definition: bytestream.h:158
av_cpu_count
int av_cpu_count(void)
Definition: cpu.c:185
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
FF_CODEC_CAP_AUTO_THREADS
#define FF_CODEC_CAP_AUTO_THREADS
Codec handles avctx->thread_count == 0 (auto) internally.
Definition: internal.h:81
Libdav1dContext::data
Dav1dData data
Definition: libdav1d.c:46
AVPacket::size
int size
Definition: packet.h:374
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
av_image_fill_arrays
int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4], const uint8_t *src, enum AVPixelFormat pix_fmt, int width, int height, int align)
Setup the data pointers and linesizes based on the specified image parameters and the provided array.
Definition: imgutils.c:446
Libdav1dContext::pool
AVBufferPool * pool
Definition: libdav1d.c:43
libdav1d_log_callback
static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
Definition: libdav1d.c:65
cpu.h
pix_fmt_rgb
static enum AVPixelFormat pix_fmt_rgb[3]
Definition: libdav1d.c:61
libdav1d_receive_frame
static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
Definition: libdav1d.c:284
OFFSET
#define OFFSET(x)
Definition: libdav1d.c:543
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:396
av_make_q
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
MKBETAG
#define MKBETAG(a, b, c, d)
Definition: macros.h:56
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:398
AVFilmGrainParams
This structure describes how to handle film grain synthesis in video for specific codecs.
Definition: film_grain_params.h:216
av_image_get_buffer_size
int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align)
Return the size in bytes of the amount of data required to store an image with the given parameters.
Definition: imgutils.c:466
av_content_light_metadata_create_side_data
AVContentLightMetadata * av_content_light_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVContentLightMetadata and add it to the frame.
Definition: mastering_display_metadata.c:55
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
version
version
Definition: libkvazaar.c:307
AVFilmGrainAOMParams::ar_coeffs_y
int8_t ar_coeffs_y[24]
Luma auto-regression coefficients.
Definition: film_grain_params.h:80
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition: log.h:191
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:366
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:408
AVColorSpace
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:505
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
av_frame_unref
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:437
AVFilmGrainAOMParams::scaling_shift
int scaling_shift
Specifies the shift applied to the chroma components.
Definition: film_grain_params.h:69
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:209
AVMasteringDisplayMetadata
Mastering display metadata capable of representing the color volume of the display used to master the...
Definition: mastering_display_metadata.h:38
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:562
Libdav1dContext::apply_grain
int apply_grain
Definition: libdav1d.c:49
avcodec.h
ret
ret
Definition: filter_design.txt:187
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
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
atsc_a53.h
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:395
ff_set_sar
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:101
ff_decode_frame_props
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
Set various frame properties from the codec context / packet data.
Definition: decode.c:1489
AVCodecContext
main external API structure.
Definition: avcodec.h:383
AVFilmGrainAOMParams::ar_coeff_lag
int ar_coeff_lag
Specifies the auto-regression lag.
Definition: film_grain_params.h:74
av_mastering_display_metadata_create_side_data
AVMasteringDisplayMetadata * av_mastering_display_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVMasteringDisplayMetadata and add it to the frame.
Definition: mastering_display_metadata.c:32
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
pix_fmt
static enum AVPixelFormat pix_fmt[][3]
Definition: libdav1d.c:54
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
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
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:82
AVMasteringDisplayMetadata::min_luminance
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
Definition: mastering_display_metadata.h:52
FF_CODEC_PROPERTY_CLOSED_CAPTIONS
#define FF_CODEC_PROPERTY_CLOSED_CAPTIONS
Definition: avcodec.h:1824
Libdav1dContext::frame_threads
int frame_threads
Definition: libdav1d.c:48
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:71
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
AVFilmGrainAOMParams::overlap_flag
int overlap_flag
Signals whether to overlap film grain blocks.
Definition: film_grain_params.h:117
libdav1d_options
static const AVOption libdav1d_options[]
Definition: libdav1d.c:545
AV_PICTURE_TYPE_P
@ AV_PICTURE_TYPE_P
Predicted.
Definition: avutil.h:275
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
libdav1d_flush
static void libdav1d_flush(AVCodecContext *c)
Definition: libdav1d.c:265
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:70
ff_set_dimensions
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:86
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
mastering_display_metadata.h
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
libdav1d_data_free
static void libdav1d_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:273
AVContentLightMetadata::MaxFALL
unsigned MaxFALL
Max average light level per frame (cd/m^2).
Definition: mastering_display_metadata.h:107
AVPacket
This structure stores compressed data.
Definition: packet.h:350
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
AVPacket::pos
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:393
format
fg outputs[0] format
Definition: ffmpeg_filter.c:175
Libdav1dContext::operating_point
int operating_point
Definition: libdav1d.c:50
bytestream.h
imgutils.h
bytestream2_init
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
Definition: bytestream.h:137
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
Libdav1dContext::all_layers
int all_layers
Definition: libdav1d.c:51
h
h
Definition: vp9dsp_template.c:2038
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:373
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
VD
#define VD
Definition: libdav1d.c:544
AVFilmGrainParams::type
enum AVFilmGrainParamsType type
Specifies the codec for which this structure is valid.
Definition: film_grain_params.h:220
ff_libdav1d_decoder
const AVCodec ff_libdav1d_decoder
Definition: libdav1d.c:561
DAV1D_MAX_TILE_THREADS
#define DAV1D_MAX_TILE_THREADS
Definition: libdav1d.c:540
AV_CODEC_EXPORT_DATA_FILM_GRAIN
#define AV_CODEC_EXPORT_DATA_FILM_GRAIN
Decoding only.
Definition: avcodec.h:356
libdav1d_parse_extradata
static av_cold int libdav1d_parse_extradata(AVCodecContext *c)
Definition: libdav1d.c:167
AVFilmGrainAOMParams::ar_coeff_shift
int ar_coeff_shift
Specifies the range of the auto-regressive coefficients.
Definition: film_grain_params.h:93
libdav1d_close
static av_cold int libdav1d_close(AVCodecContext *c)
Definition: libdav1d.c:525
AV_OPT_FLAG_DEPRECATED
#define AV_OPT_FLAG_DEPRECATED
set if option is deprecated, users should refer to AVOption.help text for more information
Definition: opt.h:294
AVFilmGrainAOMParams::ar_coeffs_uv
int8_t ar_coeffs_uv[2][25]
Chroma auto-regression coefficients.
Definition: film_grain_params.h:86