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;
44 
45 static const enum AVPixelFormat pix_fmt[][3] = {
46  [DAV1D_PIXEL_LAYOUT_I400] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12 },
47  [DAV1D_PIXEL_LAYOUT_I420] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV420P12 },
48  [DAV1D_PIXEL_LAYOUT_I422] = { AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P12 },
49  [DAV1D_PIXEL_LAYOUT_I444] = { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12 },
50 };
51 
52 static const enum AVPixelFormat pix_fmt_rgb[3] = {
54 };
55 
56 static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
57 {
58  AVCodecContext *c = opaque;
59 
60  av_vlog(c, AV_LOG_ERROR, fmt, vl);
61 }
62 
63 static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
64 {
65  Libdav1dContext *dav1d = cookie;
66  enum AVPixelFormat format = pix_fmt[p->p.layout][p->seq_hdr->hbd];
67  int ret, linesize[4], h = FFALIGN(p->p.h, 128);
68  uint8_t *aligned_ptr, *data[4];
70 
71  ret = av_image_fill_arrays(data, linesize, NULL, format, FFALIGN(p->p.w, 128),
72  h, DAV1D_PICTURE_ALIGNMENT);
73  if (ret < 0)
74  return ret;
75 
76  if (ret != dav1d->pool_size) {
77  av_buffer_pool_uninit(&dav1d->pool);
78  // Use twice the amount of required padding bytes for aligned_ptr below.
79  dav1d->pool = av_buffer_pool_init(ret + DAV1D_PICTURE_ALIGNMENT * 2, NULL);
80  if (!dav1d->pool) {
81  dav1d->pool_size = 0;
82  return AVERROR(ENOMEM);
83  }
84  dav1d->pool_size = ret;
85  }
86  buf = av_buffer_pool_get(dav1d->pool);
87  if (!buf)
88  return AVERROR(ENOMEM);
89 
90  // libdav1d requires DAV1D_PICTURE_ALIGNMENT aligned buffers, which av_malloc()
91  // doesn't guarantee for example when AVX is disabled at configure time.
92  // Use the extra DAV1D_PICTURE_ALIGNMENT padding bytes in the buffer to align it
93  // if required.
94  aligned_ptr = (uint8_t *)FFALIGN((uintptr_t)buf->data, DAV1D_PICTURE_ALIGNMENT);
95  ret = av_image_fill_pointers(data, format, h, aligned_ptr, linesize);
96  if (ret < 0) {
97  av_buffer_unref(&buf);
98  return ret;
99  }
100 
101  p->data[0] = data[0];
102  p->data[1] = data[1];
103  p->data[2] = data[2];
104  p->stride[0] = linesize[0];
105  p->stride[1] = linesize[1];
106  p->allocator_data = buf;
107 
108  return 0;
109 }
110 
111 static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
112 {
113  AVBufferRef *buf = p->allocator_data;
114 
115  av_buffer_unref(&buf);
116 }
117 
119 {
120  Libdav1dContext *dav1d = c->priv_data;
121  Dav1dSettings s;
122  int threads = (c->thread_count ? c->thread_count : av_cpu_count()) * 3 / 2;
123  int res;
124 
125  av_log(c, AV_LOG_INFO, "libdav1d %s\n", dav1d_version());
126 
127  dav1d_default_settings(&s);
128  s.logger.cookie = c;
129  s.logger.callback = libdav1d_log_callback;
130  s.allocator.cookie = dav1d;
131  s.allocator.alloc_picture_callback = libdav1d_picture_allocator;
132  s.allocator.release_picture_callback = libdav1d_picture_release;
133  s.frame_size_limit = c->max_pixels;
134  if (dav1d->apply_grain >= 0)
135  s.apply_grain = dav1d->apply_grain;
136 
137  s.n_tile_threads = dav1d->tile_threads
138  ? dav1d->tile_threads
139  : FFMIN(floor(sqrt(threads)), DAV1D_MAX_TILE_THREADS);
140  s.n_frame_threads = dav1d->frame_threads
141  ? dav1d->frame_threads
142  : FFMIN(ceil(threads / s.n_tile_threads), DAV1D_MAX_FRAME_THREADS);
143  av_log(c, AV_LOG_DEBUG, "Using %d frame threads, %d tile threads\n",
144  s.n_frame_threads, s.n_tile_threads);
145 
146  res = dav1d_open(&dav1d->c, &s);
147  if (res < 0)
148  return AVERROR(ENOMEM);
149 
150  return 0;
151 }
152 
154 {
155  Libdav1dContext *dav1d = c->priv_data;
156 
157  dav1d_data_unref(&dav1d->data);
158  dav1d_flush(dav1d->c);
159 }
160 
161 static void libdav1d_data_free(const uint8_t *data, void *opaque) {
162  AVBufferRef *buf = opaque;
163 
164  av_buffer_unref(&buf);
165 }
166 
167 static void libdav1d_user_data_free(const uint8_t *data, void *opaque) {
168  av_assert0(data == opaque);
169  av_free(opaque);
170 }
171 
173 {
174  Libdav1dContext *dav1d = c->priv_data;
175  Dav1dData *data = &dav1d->data;
176  Dav1dPicture pic = { 0 }, *p = &pic;
177  int res;
178 
179  if (!data->sz) {
180  AVPacket pkt = { 0 };
181 
182  res = ff_decode_get_packet(c, &pkt);
183  if (res < 0 && res != AVERROR_EOF)
184  return res;
185 
186  if (pkt.size) {
187  res = dav1d_data_wrap(data, pkt.data, pkt.size, libdav1d_data_free, pkt.buf);
188  if (res < 0) {
189  av_packet_unref(&pkt);
190  return res;
191  }
192 
193  data->m.timestamp = pkt.pts;
194  data->m.offset = pkt.pos;
195  data->m.duration = pkt.duration;
196 
197  pkt.buf = NULL;
198  av_packet_unref(&pkt);
199 
200  if (c->reordered_opaque != AV_NOPTS_VALUE) {
201  uint8_t *reordered_opaque = av_malloc(sizeof(c->reordered_opaque));
202  if (!reordered_opaque) {
203  dav1d_data_unref(data);
204  return AVERROR(ENOMEM);
205  }
206 
207  memcpy(reordered_opaque, &c->reordered_opaque, sizeof(c->reordered_opaque));
208  res = dav1d_data_wrap_user_data(data, reordered_opaque,
209  libdav1d_user_data_free, reordered_opaque);
210  if (res < 0) {
211  av_free(reordered_opaque);
212  dav1d_data_unref(data);
213  return res;
214  }
215  }
216  }
217  }
218 
219  res = dav1d_send_data(dav1d->c, data);
220  if (res < 0) {
221  if (res == AVERROR(EINVAL))
222  res = AVERROR_INVALIDDATA;
223  if (res != AVERROR(EAGAIN))
224  return res;
225  }
226 
227  res = dav1d_get_picture(dav1d->c, p);
228  if (res < 0) {
229  if (res == AVERROR(EINVAL))
230  res = AVERROR_INVALIDDATA;
231  else if (res == AVERROR(EAGAIN) && c->internal->draining)
232  res = AVERROR_EOF;
233 
234  return res;
235  }
236 
237  av_assert0(p->data[0] && p->allocator_data);
238 
239  // This requires the custom allocator above
240  frame->buf[0] = av_buffer_ref(p->allocator_data);
241  if (!frame->buf[0]) {
242  dav1d_picture_unref(p);
243  return AVERROR(ENOMEM);
244  }
245 
246  frame->data[0] = p->data[0];
247  frame->data[1] = p->data[1];
248  frame->data[2] = p->data[2];
249  frame->linesize[0] = p->stride[0];
250  frame->linesize[1] = p->stride[1];
251  frame->linesize[2] = p->stride[1];
252 
253  c->profile = p->seq_hdr->profile;
254  c->level = ((p->seq_hdr->operating_points[0].major_level - 2) << 2)
255  | p->seq_hdr->operating_points[0].minor_level;
256  frame->width = p->p.w;
257  frame->height = p->p.h;
258  if (c->width != p->p.w || c->height != p->p.h) {
259  res = ff_set_dimensions(c, p->p.w, p->p.h);
260  if (res < 0)
261  goto fail;
262  }
263 
264  switch (p->seq_hdr->chr) {
265  case DAV1D_CHR_VERTICAL:
267  break;
268  case DAV1D_CHR_COLOCATED:
270  break;
271  }
272  frame->colorspace = c->colorspace = (enum AVColorSpace) p->seq_hdr->mtrx;
273  frame->color_primaries = c->color_primaries = (enum AVColorPrimaries) p->seq_hdr->pri;
274  frame->color_trc = c->color_trc = (enum AVColorTransferCharacteristic) p->seq_hdr->trc;
275  frame->color_range = c->color_range = p->seq_hdr->color_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
276 
277  if (p->p.layout == DAV1D_PIXEL_LAYOUT_I444 &&
278  p->seq_hdr->mtrx == DAV1D_MC_IDENTITY &&
279  p->seq_hdr->pri == DAV1D_COLOR_PRI_BT709 &&
280  p->seq_hdr->trc == DAV1D_TRC_SRGB)
281  frame->format = c->pix_fmt = pix_fmt_rgb[p->seq_hdr->hbd];
282  else
283  frame->format = c->pix_fmt = pix_fmt[p->p.layout][p->seq_hdr->hbd];
284 
285  if (p->m.user_data.data)
286  memcpy(&frame->reordered_opaque, p->m.user_data.data, sizeof(frame->reordered_opaque));
287  else
289 
290  if (p->seq_hdr->num_units_in_tick && p->seq_hdr->time_scale) {
292  p->seq_hdr->num_units_in_tick, p->seq_hdr->time_scale, INT_MAX);
293  if (p->seq_hdr->equal_picture_interval)
294  c->ticks_per_frame = p->seq_hdr->num_ticks_per_picture;
295  }
296 
297  // match timestamps and packet size
298  frame->pts = frame->best_effort_timestamp = p->m.timestamp;
299 #if FF_API_PKT_PTS
301  frame->pkt_pts = p->m.timestamp;
303 #endif
304  frame->pkt_dts = p->m.timestamp;
305  frame->pkt_pos = p->m.offset;
306  frame->pkt_size = p->m.size;
307  frame->pkt_duration = p->m.duration;
308  frame->key_frame = p->frame_hdr->frame_type == DAV1D_FRAME_TYPE_KEY;
309 
310  switch (p->frame_hdr->frame_type) {
311  case DAV1D_FRAME_TYPE_KEY:
312  case DAV1D_FRAME_TYPE_INTRA:
313  frame->pict_type = AV_PICTURE_TYPE_I;
314  break;
315  case DAV1D_FRAME_TYPE_INTER:
316  frame->pict_type = AV_PICTURE_TYPE_P;
317  break;
318  case DAV1D_FRAME_TYPE_SWITCH:
319  frame->pict_type = AV_PICTURE_TYPE_SP;
320  break;
321  default:
322  res = AVERROR_INVALIDDATA;
323  goto fail;
324  }
325 
326  if (p->mastering_display) {
328  if (!mastering) {
329  res = AVERROR(ENOMEM);
330  goto fail;
331  }
332 
333  for (int i = 0; i < 3; i++) {
334  mastering->display_primaries[i][0] = av_make_q(p->mastering_display->primaries[i][0], 1 << 16);
335  mastering->display_primaries[i][1] = av_make_q(p->mastering_display->primaries[i][1], 1 << 16);
336  }
337  mastering->white_point[0] = av_make_q(p->mastering_display->white_point[0], 1 << 16);
338  mastering->white_point[1] = av_make_q(p->mastering_display->white_point[1], 1 << 16);
339 
340  mastering->max_luminance = av_make_q(p->mastering_display->max_luminance, 1 << 8);
341  mastering->min_luminance = av_make_q(p->mastering_display->min_luminance, 1 << 14);
342 
343  mastering->has_primaries = 1;
344  mastering->has_luminance = 1;
345  }
346  if (p->content_light) {
348  if (!light) {
349  res = AVERROR(ENOMEM);
350  goto fail;
351  }
352  light->MaxCLL = p->content_light->max_content_light_level;
353  light->MaxFALL = p->content_light->max_frame_average_light_level;
354  }
355 
356  res = 0;
357 fail:
358  dav1d_picture_unref(p);
359  if (res < 0)
360  av_frame_unref(frame);
361  return res;
362 }
363 
365 {
366  Libdav1dContext *dav1d = c->priv_data;
367 
368  av_buffer_pool_uninit(&dav1d->pool);
369  dav1d_data_unref(&dav1d->data);
370  dav1d_close(&dav1d->c);
371 
372  return 0;
373 }
374 
375 #define OFFSET(x) offsetof(Libdav1dContext, x)
376 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
377 static const AVOption libdav1d_options[] = {
378  { "tilethreads", "Tile threads", OFFSET(tile_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_TILE_THREADS, VD },
379  { "framethreads", "Frame threads", OFFSET(frame_threads), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, DAV1D_MAX_FRAME_THREADS, VD },
380  { "filmgrain", "Apply Film Grain", OFFSET(apply_grain), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
381  { NULL }
382 };
383 
384 static const AVClass libdav1d_class = {
385  .class_name = "libdav1d decoder",
386  .item_name = av_default_item_name,
387  .option = libdav1d_options,
388  .version = LIBAVUTIL_VERSION_INT,
389 };
390 
392  .name = "libdav1d",
393  .long_name = NULL_IF_CONFIG_SMALL("dav1d AV1 decoder by VideoLAN"),
394  .type = AVMEDIA_TYPE_VIDEO,
395  .id = AV_CODEC_ID_AV1,
396  .priv_data_size = sizeof(Libdav1dContext),
397  .init = libdav1d_init,
398  .close = libdav1d_close,
403  .priv_class = &libdav1d_class,
404  .wrapper_name = "libdav1d",
405 };
#define NULL
Definition: coverity.c:32
AVRational framerate
Definition: avcodec.h:3108
#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:544
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
unsigned MaxCLL
Max content light level (cd/m^2).
AVOption.
Definition: opt.h:246
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:566
const char * fmt
Definition: avisynth_c.h:861
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: avcodec.h:1500
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:104
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:486
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2203
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: avcodec.h:1481
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:403
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1778
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
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: avcodec.h:1052
int profile
profile
Definition: avcodec.h:2901
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: avcodec.h:3492
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:468
Dav1dData data
Definition: libdav1d.c:39
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:368
static void libdav1d_picture_release(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:111
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:369
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: avcodec.h:1009
#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:82
#define av_malloc(s)
AVOptions.
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:497
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: avcodec.h:1498
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
Called by decoders to get the next packet for decoding.
Definition: decode.c:328
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:388
uint8_t * data
Definition: avcodec.h:1480
static enum AVPixelFormat pix_fmt_rgb[3]
Definition: libdav1d.c:52
static void libdav1d_flush(AVCodecContext *c)
Definition: libdav1d.c:153
#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:392
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:443
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
Definition: avcodec.h:2210
#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).
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: frame.h:539
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
AVBufferRef * buf
A reference to the reference-counted buffer where the packet data is stored.
Definition: avcodec.h:1463
enum AVColorSpace colorspace
YUV colorspace type.
Definition: frame.h:550
simple assert() macros that are a bit more flexible than ISO C assert().
const char * name
Name of the codec implementation.
Definition: avcodec.h:3499
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
int64_t max_pixels
The number of pixels per image to maximally accept.
Definition: avcodec.h:3295
AVRational max_luminance
Max luminance of mastering display (cd/m^2).
#define fail()
Definition: checkasm.h:122
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:118
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:378
#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:1741
ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2.
Definition: pixfmt.h:546
static void libdav1d_user_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:167
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2182
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:3021
int64_t reordered_opaque
opaque 64-bit number (generally a PTS) that will be reordered and output in AVFrame.reordered_opaque
Definition: avcodec.h:2725
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1700
static const AVOption libdav1d_options[]
Definition: libdav1d.c:377
int draining
checks API usage: after codec draining, flush is required to resume operation
Definition: internal.h:195
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2827
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
if(ret)
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:368
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
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:574
static void libdav1d_data_free(const uint8_t *data, void *opaque)
Definition: libdav1d.c:161
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
static AVRational av_make_q(int num, int den)
Create an AVRational.
Definition: rational.h:71
main external API structure.
Definition: avcodec.h:1568
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:599
uint8_t * data
The data buffer.
Definition: buffer.h:89
static enum AVPixelFormat pix_fmt[][3]
Definition: libdav1d.c:45
void * buf
Definition: avisynth_c.h:766
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
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:462
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:275
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2196
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2189
Mastering display metadata capable of representing the color volume of the display used to master the...
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:373
static const AVClass libdav1d_class
Definition: libdav1d.c:384
#define OFFSET(x)
Definition: libdav1d.c:375
enum AVChromaLocation chroma_location
Definition: frame.h:552
int64_t best_effort_timestamp
frame timestamp estimated using various heuristics, in stream time base
Definition: frame.h:559
#define VD
Definition: libdav1d.c:376
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:404
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#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:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
attribute_deprecated int64_t pkt_pts
PTS copied from the AVPacket that was decoded to produce this frame.
Definition: frame.h:396
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:522
int64_t pkt_dts
DTS copied from the AVPacket that triggered returning this frame.
Definition: frame.h:404
static void libdav1d_log_callback(void *opaque, const char *fmt, va_list vl)
Definition: libdav1d.c:56
A reference to a data buffer.
Definition: buffer.h:81
static int libdav1d_picture_allocator(Dav1dPicture *p, void *cookie)
Definition: libdav1d.c:63
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:238
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:364
int den
Denominator.
Definition: rational.h:60
void * priv_data
Definition: avcodec.h:1595
#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:1603
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:373
enum AVColorPrimaries color_primaries
Definition: frame.h:541
int height
Definition: frame.h:353
enum AVColorTransferCharacteristic color_trc
Definition: frame.h:543
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:334
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:391
int pkt_size
size of the corresponding packet containing the compressed frame.
Definition: frame.h:610
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
unsigned MaxFALL
Max average light level per frame (cd/m^2).
This structure stores compressed data.
Definition: avcodec.h:1457
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1473
#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:172