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"
26 #include "libavutil/imgutils.h"
27 #include "libavutil/opt.h"
28 
29 #include "avcodec.h"
30 #include "decode.h"
31 #include "internal.h"
32 
33 typedef struct Libdav1dContext {
34  AVClass *class;
35  Dav1dContext *c;
37  int pool_size;
38 
39  Dav1dData data;
46 
47 static const enum AVPixelFormat pix_fmt[][3] = {
48  [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
49  [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
50  [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
51  [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
52 };
53 
54 static const enum AVPixelFormat pix_fmt_rgb[3] = {
56 };
57 
58 static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
59 {
60  AVCodecContext *c = opaque;
61 
62  av_vlog(c, AV_LOG_ERROR, fmt, vl);
63 }
64 
65 static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
66 {
67  Libdav1dContext *dav1d = cookie;
68  enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
69  int ret, linesize[4], h = FFALIGN(p->p.h, 128);
70  uint8_t *aligned_ptr, *data[4];
71  AVBufferRef *buf;
72 
73  ret = av_image_fill_arrays(data, linesize, NULL, format, FFALIGN(p->p.w, 128),
74  h, DAV1D_PICTURE_ALIGNMENT);
75  if (ret < 0)
76  return ret;
77 
78  if (ret != dav1d->pool_size) {
79  av_buffer_pool_uninit(&dav1d->pool);
80  // Use twice the amount of required padding bytes for aligned_ptr below.
81  dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
82  if (!dav1d->pool) {
83  dav1d->pool_size = 0;
84  return AVERROR(ENOMEM);
85  }
86  dav1d->pool_size = ret;
87  }
88  buf = av_buffer_pool_get(dav1d->pool);
89  if (!buf)
90  return AVERROR(ENOMEM);
91 
92  // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
93  // doesn't guarantee for example when AVX is disabled at configure time.
94  // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
95  // if required.
96  aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
97  ret = av_image_fill_pointers(data, format, h, aligned_ptr, linesize);
98  if (ret < 0) {
99  av_buffer_unref(&buf);
100  return ret;
101  }
102 
103  p->data[0] = data[0];
104  p->data[1] = data[1];
105  p->data[2] = data[2];
106  p->stride[0] = linesize[0];
107  p->stride[1] = linesize[1];
108  p->allocator_data = buf;
109 
110  return 0;
111 }
112 
113 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
114 {
115  AVBufferRef *buf = p->allocator_data;
116 
117  av_buffer_unref(&buf);
118 }
119 
121 {
122  Libdav1dContext *dav1d = c->priv_data;
123  Dav1dSettings s;
124  int threads = (c->thread_count ? c->thread_count : av_cpu_count()) * 3 / 2;
125  int res;
126 
127  av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
128 
129  dav1d_default_settings(&s);
130  s.logger.cookie = c;
131  s.logger.callback = libdav1d_log_callback;
132  s.allocator.cookie = dav1d;
133  s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
134  s.allocator.release_picture_callback = libdav1d_picture_release;
135  s.frame_size_limit = c->max_pixels;
136  if (dav1d->apply_grain >= 0)
137  s.apply_grain = dav1d->apply_grain;
138 
139  s.all_layers = dav1d->all_layers;
140  if (dav1d->operating_point >= 0)
141  s.operating_point = dav1d->operating_point;
142 
143  s.n_tile_threads = dav1d->tile_threads
144  ? dav1d->tile_threads
145  : FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
146  s.n_frame_threads = dav1d->frame_threads
147  ? dav1d->frame_threads
148  : FFMIN(ceil(threads / s.n_tile_threads), DAV1D_MAX_FRAME_THREADS);
149  av_log(c, AV_LOG_DEBUG, "Using %d frame threads, %d tile threads\n",
150  s.n_frame_threads, s.n_tile_threads);
151 
152  res = dav1d_open(&dav1d->c, &s);
153  if (res < 0)
154  return AVERROR(ENOMEM);
155 
156  return 0;
157 }
158 
160 {
161  Libdav1dContext *dav1d = c->priv_data;
162 
163  dav1d_data_unref(&dav1d->data);
164  dav1d_flush(dav1d->c);
165 }
166 
167 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
168  AVBufferRef *buf = opaque;
169 
170  av_buffer_unref(&buf);
171 }
172 
173 static void libdav1d_user_data_free(const uint8_t *data, void *opaque) {
174  av_assert0(data == opaque);
175  av_free(opaque);
176 }
177 
179 {
180  Libdav1dContext *dav1d = c->priv_data;
181  Dav1dData *data = &dav1d->data;
182  Dav1dPicture pic = { 0 }, *p = &pic;
183  int res;
184 
185  if (!data->sz) {
186  AVPacket pkt = { 0 };
187 
188  res = ff_decode_get_packet(c, &pkt);
189  if (res < 0 && res != AVERROR_EOF)
190  return res;
191 
192  if (pkt.size) {
193  res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
194  if (res < 0) {
195  av_packet_unref(&pkt);
196  return res;
197  }
198 
199  data->m.timestamp = pkt.pts;
200  data->m.offset = pkt.pos;
201  data->m.duration = pkt.duration;
202 
203  pkt.buf = NULL;
204  av_packet_unref(&pkt);
205 
206  if (c->reordered_opaque != AV_NOPTS_VALUE) {
207  uint8_t *reordered_opaque = av_malloc(sizeof(c->reordered_opaque));
208  if (!reordered_opaque) {
209  dav1d_data_unref(data);
210  return AVERROR(ENOMEM);
211  }
212 
213  memcpy(reordered_opaque, &c->reordered_opaque, sizeof(c->reordered_opaque));
214  res = dav1d_data_wrap_user_data(data, reordered_opaque,
215  libdav1d_user_data_free, reordered_opaque);
216  if (res < 0) {
217  av_free(reordered_opaque);
218  dav1d_data_unref(data);
219  return res;
220  }
221  }
222  }
223  }
224 
225  res = dav1d_send_data(dav1d->c, data);
226  if (res < 0) {
227  if (res == AVERROR(EINVAL))
228  res = AVERROR_INVALIDDATA;
229  if (res != AVERROR(EAGAIN))
230  return res;
231  }
232 
233  res = dav1d_get_picture(dav1d->c, p);
234  if (res < 0) {
235  if (res == AVERROR(EINVAL))
236  res = AVERROR_INVALIDDATA;
237  else if (res == AVERROR(EAGAIN) && c->internal->draining)
238  res = AVERROR_EOF;
239 
240  return res;
241  }
242 
243  av_assert0(p->data[0] && p->allocator_data);
244 
245  // This requires the custom allocator above
246  frame->buf[0] = av_buffer_ref(p->allocator_data);
247  if (!frame->buf[0]) {
248  dav1d_picture_unref(p);
249  return AVERROR(ENOMEM);
250  }
251 
252  frame->data[0] = p->data[0];
253  frame->data[1] = p->data[1];
254  frame->data[2] = p->data[2];
255  frame->linesize[0] = p->stride[0];
256  frame->linesize[1] = p->stride[1];
257  frame->linesize[2] = p->stride[1];
258 
259  c->profile = p->seq_hdr->profile;
260  c->level = ((p->seq_hdr->operating_points[0].major_level - 2) << 2)
261  | p->seq_hdr->operating_points[0].minor_level;
262  frame->width = p->p.w;
263  frame->height = p->p.h;
264  if (c->width != p->p.w || c->height != p->p.h) {
265  res = ff_set_dimensions(c, p->p.w, p->p.h);
266  if (res < 0)
267  goto fail;
268  }
269 
271  &frame->sample_aspect_ratio.den,
272  frame->height * (int64_t)p->frame_hdr->render_width,
273  frame->width * (int64_t)p->frame_hdr->render_height,
274  INT_MAX);
275 
276  switch (p->seq_hdr->chr) {
277  case DAV1D_CHR_VERTICAL:
279  break;
280  case DAV1D_CHR_COLOCATED:
282  break;
283  }
284  frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
285  frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
286  frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
287  frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
288 
289  if (p->p.layout == DAV1D_PIXEL_LAYOUT_I444 &&
290  p->seq_hdr->mtrx == DAV1D_MC_IDENTITY &&
291  p->seq_hdr->pri == DAV1D_COLOR_PRI_BT709 &&
292  p->seq_hdr->trc == DAV1D_TRC_SRGB)
293  frame->format = c->pix_fmt = pix_fmt_rgb[p->seq_hdr->hbd];
294  else
295  frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
296 
297  if (p->m.user_data.data)
298  memcpy(&frame->reordered_opaque, p->m.user_data.data, sizeof(frame->reordered_opaque));
299  else
301 
302  if (p->seq_hdr->num_units_in_tick && p->seq_hdr->time_scale) {
304  p->seq_hdr->num_units_in_tick, p->seq_hdr->time_scale, INT_MAX);
305  if (p->seq_hdr->equal_picture_interval)
306  c->ticks_per_frame = p->seq_hdr->num_ticks_per_picture;
307  }
308 
309  // match timestamps and packet size
310  frame->pts = frame->best_effort_timestamp = p->m.timestamp;
311 #if FF_API_PKT_PTS
313  frame->pkt_pts = p->m.timestamp;
315 #endif
316  frame->pkt_dts = p->m.timestamp;
317  frame->pkt_pos = p->m.offset;
318  frame->pkt_size = p->m.size;
319  frame->pkt_duration = p->m.duration;
320  frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
321 
322  switch (p->frame_hdr->frame_type) {
323  case DAV1D_FRAME_TYPE_KEY:
324  case DAV1D_FRAME_TYPE_INTRA:
325  frame->pict_type = AV_PICTURE_TYPE_I;
326  break;
327  case DAV1D_FRAME_TYPE_INTER:
328  frame->pict_type = AV_PICTURE_TYPE_P;
329  break;
330  case DAV1D_FRAME_TYPE_SWITCH:
331  frame->pict_type = AV_PICTURE_TYPE_SP;
332  break;
333  default:
334  res = AVERROR_INVALIDDATA;
335  goto fail;
336  }
337 
338  if (p->mastering_display) {
340  if (!mastering) {
341  res = AVERROR(ENOMEM);
342  goto fail;
343  }
344 
345  for (int i = 0; i < 3; i++) {
346  mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
347  mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
348  }
349  mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
350  mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
351 
352  mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
353  mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
354 
355  mastering->has_primaries = 1;
356  mastering->has_luminance = 1;
357  }
358  if (p->content_light) {
360  if (!light) {
361  res = AVERROR(ENOMEM);
362  goto fail;
363  }
364  light->MaxCLL = p->content_light->max_content_light_level;
365  light->MaxFALL = p->content_light->max_frame_average_light_level;
366  }
367 
368  res = 0;
369 fail:
370  dav1d_picture_unref(p);
371  if (res < 0)
372  av_frame_unref(frame);
373  return res;
374 }
375 
377 {
378  Libdav1dContext *dav1d = c->priv_data;
379 
380  av_buffer_pool_uninit(&dav1d->pool);
381  dav1d_data_unref(&dav1d->data);
382  dav1d_close(&dav1d->c);
383 
384  return 0;
385 }
386 
387 #define OFFSET(x) offsetof(Libdav1dContext, x)
388 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
389 static const AVOption libdav1d_options[] = {
390  { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD },
391  { "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD },
392  { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
393  { "oppoint", "Select an operating point of the scalable bitstream", OFFSET(operating_point), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 31, VD },
394  { "alllayers", "Output all spatial layers", OFFSET(all_layers), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
395  { NULL }
396 };
397 
398 static const AVClass libdav1d_class = {
399  .class_name = "libdav1d decoder",
400  .item_name = av_default_item_name,
401  .option = libdav1d_options,
402  .version = LIBAVUTIL_VERSION_INT,
403 };
404 
406  .name = "libdav1d",
407  .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
408  .type = AVMEDIA_TYPE_VIDEO,
409  .id = AV_CODEC_ID_AV1,
410  .priv_data_size = sizeof(Libdav1dContext),
411  .init = libdav1d_init,
412  .close = libdav1d_close,
417  .priv_class = &libdav1d_class,
418  .wrapper_name = "libdav1d",
419 };
#define NULL
Definition: coverity.c:32
AVRational framerate
Definition: avcodec.h:2069
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
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:125
MPEG-2/4 4:2:0, H.264 default for 4:2:0.
Definition: pixfmt.h:559
This structure describes decoded (raw) audio or video data.
Definition: frame.h:308
unsigned MaxCLL
Max content light level (cd/m^2).
AVOption.
Definition: opt.h:248
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:100
static void flush(AVCodecContext *avctx)
int av_cpu_count(void)
Definition: cpu.c:267
int64_t pkt_pos
reordered pos from the last AVPacket that has been input into the decoder
Definition: frame.h:579
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:375
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:105
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:499
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1161
AVRational white_point[2]
CIE 1931 xy chromaticity coords of white point.
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
int size
Definition: packet.h:356
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:411
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:736
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
int has_primaries
Flag indicating whether the display primaries (and white point) are set.
static AVPacket pkt
static CopyRet receive_frame(AVCodecContext *avctx, AVFrame *frame, int *got_frame)
Definition: crystalhd.c:560
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: codec.h:118
int profile
profile
Definition: avcodec.h:1859
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 format(the sample packing is implied by the sample format) and sample rate.The lists are not just lists
AVCodec.
Definition: codec.h:190
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:483
Dav1dData data
Definition: libdav1d.c:39
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:380
static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:113
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
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:72
#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:75
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
#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:40
uint8_t
#define av_cold
Definition: attributes.h:88
#define av_malloc(s)
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:512
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:373
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
Called by decoders to get the next packet for decoding.
Definition: decode.c:238
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:401
uint8_t * data
Definition: packet.h:355
static enum AVPixelFormat pix_fmt_rgb[3]
Definition: libdav1d.c:54
static void libdav1d_flush(AVCodecContext *c)
Definition: libdav1d.c:159
#define AVERROR_EOF
End of file.
Definition: error.h:55
int frame_threads
Definition: libdav1d.c:41
int has_luminance
Flag indicating whether the luminance (min_ and max_) have been set.
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
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:458
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:1168
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
The buffer pool.
Content light level needed by to transmit HDR over HDMI (CTA-861.3).
int width
Definition: frame.h:366
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:153
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:552
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:215
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
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: packet.h:338
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:563
simple assert() macros that are a bit more flexible than ISO C assert().
const char * name
Name of the codec implementation.
Definition: codec.h:197
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:2256
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
#define fail()
Definition: checkasm.h:123
Dav1dContext * c
Definition: libdav1d.c:35
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
static av_cold int libdav1d_init(AVCodecContext *c)
Definition: libdav1d.c:120
AVMasteringDisplayMetadata * av_mastering_display_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVMasteringDisplayMetadata and add it to the frame.
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:391
#define FFMIN(a, b)
Definition: common.h:96
AVRational min_luminance
Min luminance of mastering display (cd/m^2).
int width
picture width / height.
Definition: avcodec.h:699
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:561
static void libdav1d_user_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:173
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1140
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
#define s(width, name)
Definition: cbs_vp9.c:257
int level
level
Definition: avcodec.h:1982
int operating_point
Definition: libdav1d.c:43
int64_t reordered_opaque
opaque 64-bit number (generally a PTS) that will be reordered and output in AVFrame.reordered_opaque
Definition: avcodec.h:1683
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:658
static const AVOption libdav1d_options[]
Definition: libdav1d.c:389
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:172
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:1785
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:538
if(ret)
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:381
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height, uint8_t *ptr, const int linesizes[4])
Fill plane data pointers for an image with pixel format pix_fmt and height height.
Definition: imgutils.c:111
Libavcodec external API header.
int tile_threads
Definition: libdav1d.c:40
int64_t pkt_duration
duration of the corresponding packet, expressed in AVStream->time_base units, 0 if unknown...
Definition: frame.h:587
static void libdav1d_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:167
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:339
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
main external API structure.
Definition: avcodec.h:526
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:605
uint8_t * data
The data buffer.
Definition: buffer.h:89
static enum AVPixelFormat pix_fmt[][3]
Definition: libdav1d.c:47
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:396
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
AVContentLightMetadata * av_content_light_metadata_create_side_data(AVFrame *frame)
Allocate a complete AVContentLightMetadata and add it to the frame.
int64_t reordered_opaque
reordered opaque 64 bits (generally an integer or a double precision float PTS but can be anything)...
Definition: frame.h:475
Switching Predicted.
Definition: avutil.h:279
Describe the class of an AVClass context structure.
Definition: log.h:67
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:276
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:1154
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1147
Mastering display metadata capable of representing the color volume of the display used to master the...
static const AVClass libdav1d_class
Definition: libdav1d.c:398
#define OFFSET(x)
Definition: libdav1d.c:387
enum AVChromaLocation chroma_location
Definition: frame.h:565
int64_t best_effort_timestamp
frame timestamp estimated using various heuristics, in stream time base
Definition: frame.h:572
#define VD
Definition: libdav1d.c:388
AVRational display_primaries[3][2]
CIE 1931 xy chromaticity coords of color primaries (r, g, b order).
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:554
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#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:55
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:322
attribute_deprecated int64_t pkt_pts
PTS copied from the AVPacket that was decoded to produce this frame.
Definition: frame.h:409
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:537
int64_t pkt_dts
DTS copied from the AVPacket that triggered returning this frame.
Definition: frame.h:417
static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
Definition: libdav1d.c:58
A reference to a data buffer.
Definition: buffer.h:81
static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:65
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
AVBufferPool * av_buffer_pool_init(int size, AVBufferRef *(*alloc)(int size))
Allocate and initialize a buffer pool.
Definition: buffer.c:239
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
static av_cold int libdav1d_close(AVCodecContext *c)
Definition: libdav1d.c:376
int den
Denominator.
Definition: rational.h:60
void * priv_data
Definition: avcodec.h:553
#define av_free(p)
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:561
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:386
enum AVColorPrimaries color_primaries
Definition: frame.h:554
int height
Definition: frame.h:366
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:556
AVBufferPool * pool
Definition: libdav1d.c:36
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:337
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
AVCodec ff_libdav1d_decoder
Definition: libdav1d.c:405
int pkt_size
size of the corresponding packet containing the compressed frame.
Definition: frame.h:623
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
unsigned MaxFALL
Max average light level per frame (cd/m^2).
This structure stores compressed data.
Definition: packet.h:332
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:348
int i
Definition: input.c:406
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
Predicted.
Definition: avutil.h:275
static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
Definition: libdav1d.c:178