AOMedia AV1 Codec
lightfield_encoder
1 /*
2  * Copyright (c) 2017, Alliance for Open Media. All rights reserved
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 // Lightfield Encoder
13 // ==================
14 //
15 // This is an example of a simple lightfield encoder. It builds upon the
16 // twopass_encoder.c example. It takes an input file in YV12 format,
17 // treating it as a planar lightfield instead of a video. The img_width
18 // and img_height arguments are the dimensions of the lightfield images,
19 // while the lf_width and lf_height arguments are the number of
20 // lightfield images in each dimension. The lf_blocksize determines the
21 // number of reference images used for MCP. For example, 5 means that there
22 // is a reference image for every 5x5 lightfield image block. All images
23 // within a block will use the center image in that block as the reference
24 // image for MCP.
25 // Run "make test" to download lightfield test data: vase10x10.yuv.
26 // Run lightfield encoder to encode whole lightfield:
27 // examples/lightfield_encoder 1024 1024 vase10x10.yuv vase10x10.ivf 10 10 5
28 
29 // Note: In bitstream.c and encoder.c, define EXT_TILE_DEBUG as 1 will print
30 // out the uncompressed header and the frame contexts, which can be used to
31 // test the bit exactness of the headers and the frame contexts for large scale
32 // tile coded frames.
33 
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 
38 #include "aom/aom_encoder.h"
39 #include "aom/aomcx.h"
40 #include "aom_scale/yv12config.h"
41 #include "av1/common/enums.h"
42 #include "av1/encoder/encoder_utils.h"
43 #include "common/tools_common.h"
44 #include "common/video_writer.h"
45 
46 static const char *exec_name;
47 
48 void usage_exit(void) {
49  fprintf(stderr,
50  "Usage: %s <img_width> <img_height> <infile> <outfile> "
51  "<lf_width> <lf_height> <lf_blocksize>\n",
52  exec_name);
53  exit(EXIT_FAILURE);
54 }
55 
56 static int img_size_bytes(aom_image_t *img) {
57  int image_size_bytes = 0;
58  int plane;
59  for (plane = 0; plane < 3; ++plane) {
60  const int w = aom_img_plane_width(img, plane) *
61  ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
62  const int h = aom_img_plane_height(img, plane);
63  image_size_bytes += w * h;
64  }
65  return image_size_bytes;
66 }
67 
68 static int get_frame_stats(aom_codec_ctx_t *ctx, const aom_image_t *img,
69  aom_codec_pts_t pts, unsigned int duration,
71  aom_fixed_buf_t *stats) {
72  int got_pkts = 0;
73  aom_codec_iter_t iter = NULL;
74  const aom_codec_cx_pkt_t *pkt = NULL;
75  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
76  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to get frame stats.");
77 
78  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
79  got_pkts = 1;
80 
81  if (pkt->kind == AOM_CODEC_STATS_PKT) {
82  const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
83  const size_t pkt_size = pkt->data.twopass_stats.sz;
84  stats->buf = realloc(stats->buf, stats->sz + pkt_size);
85  if (!stats->buf) die("Failed to allocate frame stats buffer.");
86  memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
87  stats->sz += pkt_size;
88  }
89  }
90 
91  return got_pkts;
92 }
93 
94 static int encode_frame(aom_codec_ctx_t *ctx, const aom_image_t *img,
95  aom_codec_pts_t pts, unsigned int duration,
96  aom_enc_frame_flags_t flags, AvxVideoWriter *writer) {
97  int got_pkts = 0;
98  aom_codec_iter_t iter = NULL;
99  const aom_codec_cx_pkt_t *pkt = NULL;
100  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
101  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to encode frame.");
102 
103  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
104  got_pkts = 1;
105  if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
106  const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0;
107 
108  if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf,
109  pkt->data.frame.sz,
110  pkt->data.frame.pts))
111  die_codec(ctx, "Failed to write compressed frame.");
112  printf(keyframe ? "K" : ".");
113  fflush(stdout);
114  }
115  }
116 
117  return got_pkts;
118 }
119 
120 static void get_raw_image(aom_image_t **frame_to_encode, aom_image_t *raw,
121  aom_image_t *raw_shift) {
122  if (FORCE_HIGHBITDEPTH_DECODING) {
123  // Need to allocate larger buffer to use hbd internal.
124  int input_shift = 0;
125  aom_img_upshift(raw_shift, raw, input_shift);
126  *frame_to_encode = raw_shift;
127  } else {
128  *frame_to_encode = raw;
129  }
130 }
131 
132 static aom_fixed_buf_t pass0(aom_image_t *raw, FILE *infile,
133  aom_codec_iface_t *encoder,
134  const aom_codec_enc_cfg_t *cfg, int lf_width,
135  int lf_height, int lf_blocksize, int flags,
136  aom_image_t *raw_shift) {
137  aom_codec_ctx_t codec;
138  int frame_count = 0;
139  int image_size_bytes = img_size_bytes(raw);
140  int u_blocks, v_blocks;
141  int bu, bv;
142  aom_fixed_buf_t stats = { NULL, 0 };
143  aom_image_t *frame_to_encode;
144 
145  if (aom_codec_enc_init(&codec, encoder, cfg, flags))
146  die("Failed to initialize encoder");
148  die_codec(&codec, "Failed to turn off auto altref");
150  die_codec(&codec, "Failed to set frame parallel decoding");
151 
152  // How many reference images we need to encode.
153  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
154  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
155 
156  printf("\n First pass: ");
157 
158  for (bv = 0; bv < v_blocks; ++bv) {
159  for (bu = 0; bu < u_blocks; ++bu) {
160  const int block_u_min = bu * lf_blocksize;
161  const int block_v_min = bv * lf_blocksize;
162  int block_u_end = (bu + 1) * lf_blocksize;
163  int block_v_end = (bv + 1) * lf_blocksize;
164  int u_block_size, v_block_size;
165  int block_ref_u, block_ref_v;
166 
167  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
168  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
169  u_block_size = block_u_end - block_u_min;
170  v_block_size = block_v_end - block_v_min;
171  block_ref_u = block_u_min + u_block_size / 2;
172  block_ref_v = block_v_min + v_block_size / 2;
173 
174  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
175  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
176  SEEK_SET);
177  aom_img_read(raw, infile);
178  get_raw_image(&frame_to_encode, raw, raw_shift);
179 
180  // Reference frames can be encoded encoded without tiles.
181  ++frame_count;
182  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
188  &stats);
189  }
190  }
191 
193  die_codec(&codec, "Failed to set frame parallel decoding");
194 
195  for (bv = 0; bv < v_blocks; ++bv) {
196  for (bu = 0; bu < u_blocks; ++bu) {
197  const int block_u_min = bu * lf_blocksize;
198  const int block_v_min = bv * lf_blocksize;
199  int block_u_end = (bu + 1) * lf_blocksize;
200  int block_v_end = (bv + 1) * lf_blocksize;
201  int u, v;
202  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
203  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
204  for (v = block_v_min; v < block_v_end; ++v) {
205  for (u = block_u_min; u < block_u_end; ++u) {
206  printf("C%d, ", (u + v * lf_width));
207  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
208  aom_img_read(raw, infile);
209  get_raw_image(&frame_to_encode, raw, raw_shift);
210 
211  ++frame_count;
212  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
218  &stats);
219  }
220  }
221  }
222  }
223  // Flush encoder.
224  // No ARF, this should not be needed.
225  while (get_frame_stats(&codec, NULL, frame_count, 1, 0, &stats)) {
226  }
227 
228  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
229 
230  printf("\nFirst pass complete. Processed %d frames.\n", frame_count);
231 
232  return stats;
233 }
234 
235 static void pass1(aom_image_t *raw, FILE *infile, const char *outfile_name,
236  aom_codec_iface_t *encoder, aom_codec_enc_cfg_t *cfg,
237  int lf_width, int lf_height, int lf_blocksize, int flags,
238  aom_image_t *raw_shift) {
239  AvxVideoInfo info = { get_fourcc_by_aom_encoder(encoder),
240  cfg->g_w,
241  cfg->g_h,
242  { cfg->g_timebase.num, cfg->g_timebase.den },
243  0 };
244  AvxVideoWriter *writer = NULL;
245  aom_codec_ctx_t codec;
246  int frame_count = 0;
247  int image_size_bytes = img_size_bytes(raw);
248  int bu, bv;
249  int u_blocks, v_blocks;
250  aom_image_t *frame_to_encode;
251  aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
252  int reference_image_num = 0;
253  int i;
254 
255  writer = aom_video_writer_open(outfile_name, kContainerIVF, &info);
256  if (!writer) die("Failed to open %s for writing", outfile_name);
257 
258  if (aom_codec_enc_init(&codec, encoder, cfg, flags))
259  die("Failed to initialize encoder");
261  die_codec(&codec, "Failed to turn off auto altref");
263  die_codec(&codec, "Failed to set frame parallel decoding");
265  die_codec(&codec, "Failed to enable encoder ext_tile debug");
266  if (aom_codec_control(&codec, AOME_SET_CPUUSED, 3))
267  die_codec(&codec, "Failed to set cpu-used");
268 
269  // Note: The superblock is a sequence parameter and has to be the same for 1
270  // sequence. In lightfield application, must choose the superblock size(either
271  // 64x64 or 128x128) before the encoding starts. Otherwise, the default is
272  // AOM_SUPERBLOCK_SIZE_DYNAMIC, and the superblock size will be set to 64x64
273  // internally.
276  die_codec(&codec, "Failed to set SB size");
277 
278  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
279  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
280 
281  reference_image_num = u_blocks * v_blocks;
282  // Set the max gf group length so the references are guaranteed to be in
283  // a different gf group than any of the regular frames. This avoids using
284  // both vbr and constant quality mode in a single group. The number of
285  // references now cannot surpass 17 because of the enforced MAX_GF_INTERVAL of
286  // 16. If it is necessary to exceed this reference frame limit, one will have
287  // to do some additional handling to ensure references are in separate gf
288  // groups from the regular frames.
290  reference_image_num - 1))
291  die_codec(&codec, "Failed to set max gf interval");
293  if (FORCE_HIGHBITDEPTH_DECODING) ref_fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
294  // Allocate memory with the border so that it can be used as a reference.
295  const bool resize =
296  codec.config.enc->rc_resize_mode || codec.config.enc->rc_superres_mode;
297  const bool all_intra = reference_image_num - 1 == 0;
298  int border_in_pixels =
299  av1_get_enc_border_size(resize, all_intra, BLOCK_64X64);
300 
301  for (i = 0; i < reference_image_num; i++) {
302  if (!aom_img_alloc_with_border(&reference_images[i], ref_fmt, cfg->g_w,
303  cfg->g_h, 32, 8, border_in_pixels)) {
304  die("Failed to allocate image.");
305  }
306  }
307 
308  printf("\n Second pass: ");
309 
310  // Encode reference images first.
311  printf("Encoding Reference Images\n");
312  for (bv = 0; bv < v_blocks; ++bv) {
313  for (bu = 0; bu < u_blocks; ++bu) {
314  const int block_u_min = bu * lf_blocksize;
315  const int block_v_min = bv * lf_blocksize;
316  int block_u_end = (bu + 1) * lf_blocksize;
317  int block_v_end = (bv + 1) * lf_blocksize;
318  int u_block_size, v_block_size;
319  int block_ref_u, block_ref_v;
320 
321  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
322  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
323  u_block_size = block_u_end - block_u_min;
324  v_block_size = block_v_end - block_v_min;
325  block_ref_u = block_u_min + u_block_size / 2;
326  block_ref_v = block_v_min + v_block_size / 2;
327 
328  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
329  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
330  SEEK_SET);
331  aom_img_read(raw, infile);
332 
333  get_raw_image(&frame_to_encode, raw, raw_shift);
334 
335  // Reference frames may be encoded without tiles.
336  ++frame_count;
337  printf("Encoding reference image %d of %d\n", bv * u_blocks + bu,
338  u_blocks * v_blocks);
339  encode_frame(&codec, frame_to_encode, frame_count, 1,
345  writer);
346 
348  &reference_images[frame_count - 1]))
349  die_codec(&codec, "Failed to copy decoder reference frame");
350  }
351  }
352 
353  cfg->large_scale_tile = 1;
354  // Fixed q encoding for camera frames.
355  cfg->rc_end_usage = AOM_Q;
356  if (aom_codec_enc_config_set(&codec, cfg))
357  die_codec(&codec, "Failed to configure encoder");
358 
359  // The fixed q value used in encoding.
360  if (aom_codec_control(&codec, AOME_SET_CQ_LEVEL, 36))
361  die_codec(&codec, "Failed to set cq level");
363  die_codec(&codec, "Failed to set frame parallel decoding");
365  die_codec(&codec, "Failed to turn on single tile decoding");
366  // Set tile_columns and tile_rows to MAX values, which guarantees the tile
367  // size of 64 x 64 pixels(i.e. 1 SB) for <= 4k resolution.
369  die_codec(&codec, "Failed to set tile width");
370  if (aom_codec_control(&codec, AV1E_SET_TILE_ROWS, 6))
371  die_codec(&codec, "Failed to set tile height");
372 
373  for (bv = 0; bv < v_blocks; ++bv) {
374  for (bu = 0; bu < u_blocks; ++bu) {
375  const int block_u_min = bu * lf_blocksize;
376  const int block_v_min = bv * lf_blocksize;
377  int block_u_end = (bu + 1) * lf_blocksize;
378  int block_v_end = (bv + 1) * lf_blocksize;
379  int u, v;
380  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
381  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
382  for (v = block_v_min; v < block_v_end; ++v) {
383  for (u = block_u_min; u < block_u_end; ++u) {
384  av1_ref_frame_t ref;
385  ref.idx = 0;
386  ref.use_external_ref = 1;
387  ref.img = reference_images[bv * u_blocks + bu];
388  if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref))
389  die_codec(&codec, "Failed to set reference frame");
390 
391  printf("C%d, ", (u + v * lf_width));
392  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
393  aom_img_read(raw, infile);
394  get_raw_image(&frame_to_encode, raw, raw_shift);
395 
396  ++frame_count;
397  printf("Encoding image %d of %d\n",
398  frame_count - (u_blocks * v_blocks), lf_width * lf_height);
399  encode_frame(&codec, frame_to_encode, frame_count, 1,
405  writer);
406  }
407  }
408  }
409  }
410 
411  // Flush encoder.
412  // No ARF, this should not be needed.
413  while (encode_frame(&codec, NULL, -1, 1, 0, writer)) {
414  }
415 
416  for (i = 0; i < reference_image_num; i++) aom_img_free(&reference_images[i]);
417 
418  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
419 
420  // Modify large_scale_file fourcc.
421  if (cfg->large_scale_tile == 1)
422  aom_video_writer_set_fourcc(writer, LST_FOURCC);
423  aom_video_writer_close(writer);
424 
425  printf("\nSecond pass complete. Processed %d frames.\n", frame_count);
426 }
427 
428 int main(int argc, char **argv) {
429  FILE *infile = NULL;
430  int w, h;
431  // The number of lightfield images in the u and v dimensions.
432  int lf_width, lf_height;
433  // Defines how many images refer to the same reference image for MCP.
434  // lf_blocksize X lf_blocksize images will all use the reference image
435  // in the middle of the block of images.
436  int lf_blocksize;
437  aom_codec_ctx_t codec;
439  aom_image_t raw;
440  aom_image_t raw_shift;
441  aom_codec_err_t res;
442  aom_fixed_buf_t stats;
443  int flags = 0;
444 
445  const int fps = 30;
446  const int bitrate = 200; // kbit/s
447  const char *const width_arg = argv[1];
448  const char *const height_arg = argv[2];
449  const char *const infile_arg = argv[3];
450  const char *const outfile_arg = argv[4];
451  const char *const lf_width_arg = argv[5];
452  const char *const lf_height_arg = argv[6];
453  const char *lf_blocksize_arg = argv[7];
454  exec_name = argv[0];
455 
456  if (argc < 8) die("Invalid number of arguments");
457 
458  aom_codec_iface_t *encoder = get_aom_encoder_by_short_name("av1");
459  if (!encoder) die("Unsupported codec.");
460 
461  w = (int)strtol(width_arg, NULL, 0);
462  h = (int)strtol(height_arg, NULL, 0);
463  lf_width = (int)strtol(lf_width_arg, NULL, 0);
464  lf_height = (int)strtol(lf_height_arg, NULL, 0);
465  lf_blocksize = (int)strtol(lf_blocksize_arg, NULL, 0);
466  lf_blocksize = lf_blocksize < lf_width ? lf_blocksize : lf_width;
467  lf_blocksize = lf_blocksize < lf_height ? lf_blocksize : lf_height;
468 
469  if (w <= 0 || h <= 0 || (w % 2) != 0 || (h % 2) != 0)
470  die("Invalid frame size: %dx%d", w, h);
471  if (lf_width <= 0 || lf_height <= 0)
472  die("Invalid lf_width and/or lf_height: %dx%d", lf_width, lf_height);
473  if (lf_blocksize <= 0) die("Invalid lf_blocksize: %d", lf_blocksize);
474 
475  if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, w, h, 32)) {
476  die("Failed to allocate image.");
477  }
478  if (FORCE_HIGHBITDEPTH_DECODING) {
479  // Need to allocate larger buffer to use hbd internal.
481  32);
482  }
483 
484  printf("Using %s\n", aom_codec_iface_name(encoder));
485 
486  // Configuration
487  res = aom_codec_enc_config_default(encoder, &cfg, 0);
488  if (res) die_codec(&codec, "Failed to get default codec config.");
489 
490  cfg.g_w = w;
491  cfg.g_h = h;
492  cfg.g_timebase.num = 1;
493  cfg.g_timebase.den = fps;
494  cfg.rc_target_bitrate = bitrate;
495  cfg.g_error_resilient = 0; // This is required.
496  cfg.g_lag_in_frames = 0; // need to set this since default is 19.
497  cfg.kf_mode = AOM_KF_DISABLED;
498  cfg.large_scale_tile = 0; // Only set it to 1 for camera frame encoding.
499  cfg.g_bit_depth = AOM_BITS_8;
500  flags |= (cfg.g_bit_depth > AOM_BITS_8 || FORCE_HIGHBITDEPTH_DECODING)
502  : 0;
503 
504  if (!(infile = fopen(infile_arg, "rb")))
505  die("Failed to open %s for reading", infile_arg);
506 
507  // Pass 0
509  stats = pass0(&raw, infile, encoder, &cfg, lf_width, lf_height, lf_blocksize,
510  flags, &raw_shift);
511 
512  // Pass 1
513  rewind(infile);
514  cfg.g_pass = AOM_RC_LAST_PASS;
515  cfg.rc_twopass_stats_in = stats;
516  pass1(&raw, infile, outfile_arg, encoder, &cfg, lf_width, lf_height,
517  lf_blocksize, flags, &raw_shift);
518  free(stats.buf);
519 
520  if (FORCE_HIGHBITDEPTH_DECODING) aom_img_free(&raw_shift);
521  aom_img_free(&raw);
522  fclose(infile);
523 
524  return EXIT_SUCCESS;
525 }
Describes the encoder algorithm interface to applications.
aom_image_t * aom_img_alloc(aom_image_t *img, aom_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align)
Open a descriptor, allocating storage for the underlying image.
#define AOM_IMG_FMT_HIGHBITDEPTH
Definition: aom_image.h:38
@ AOM_IMG_FMT_I420
Definition: aom_image.h:45
enum aom_img_fmt aom_img_fmt_t
List of supported image formats.
int aom_img_plane_height(const aom_image_t *img, int plane)
Get the height of a plane.
int aom_img_plane_width(const aom_image_t *img, int plane)
Get the width of a plane.
aom_image_t * aom_img_alloc_with_border(aom_image_t *img, aom_img_fmt_t fmt, unsigned int d_w, unsigned int d_h, unsigned int align, unsigned int size_align, unsigned int border)
Open a descriptor, allocating storage for the underlying image with a border.
void aom_img_free(aom_image_t *img)
Close an image descriptor.
Provides definitions for using AOM or AV1 encoder algorithm within the aom Codec Interface.
#define AOM_EFLAG_NO_UPD_ARF
Don't update the alternate reference frame.
Definition: aomcx.h:136
#define AOM_EFLAG_NO_REF_LAST2
Don't reference the last2 frame.
Definition: aomcx.h:79
#define AOM_EFLAG_NO_REF_BWD
Don't reference the bwd reference frame.
Definition: aomcx.h:108
#define AOM_EFLAG_NO_UPD_LAST
Don't update the last frame.
Definition: aomcx.h:122
#define AOM_EFLAG_NO_REF_ARF
Don't reference the alternate reference frame.
Definition: aomcx.h:101
#define AOM_EFLAG_NO_REF_LAST3
Don't reference the last3 frame.
Definition: aomcx.h:86
#define AOM_EFLAG_NO_UPD_GF
Don't update the golden frame.
Definition: aomcx.h:129
#define AOM_EFLAG_NO_REF_GF
Don't reference the golden frame.
Definition: aomcx.h:93
#define AOM_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: aomcx.h:142
#define AOM_EFLAG_NO_REF_ARF2
Don't reference the alt2 reference frame.
Definition: aomcx.h:115
@ AV1E_SET_MAX_GF_INTERVAL
Codec control function to set minimum interval between GF/ARF frames, unsigned int parameter.
Definition: aomcx.h:594
@ AV1E_SET_FRAME_PARALLEL_DECODING
Codec control function to enable frame parallel decoding feature, unsigned int parameter.
Definition: aomcx.h:431
@ AV1E_SET_TILE_ROWS
Codec control function to set number of tile rows, unsigned int parameter.
Definition: aomcx.h:398
@ AV1E_SET_SUPERBLOCK_SIZE
Codec control function to set intended superblock size, unsigned int parameter.
Definition: aomcx.h:651
@ AOME_SET_ENABLEAUTOALTREF
Codec control function to enable automatic set and use alf frames, unsigned int parameter.
Definition: aomcx.h:228
@ AV1E_SET_TILE_COLUMNS
Codec control function to set number of tile columns. unsigned int parameter.
Definition: aomcx.h:380
@ AOME_SET_CPUUSED
Codec control function to set encoder internal speed settings, int parameter.
Definition: aomcx.h:220
@ AV1E_SET_SINGLE_TILE_DECODING
Codec control function to set the single tile decoding mode, unsigned int parameter.
Definition: aomcx.h:1149
@ AOME_SET_CQ_LEVEL
Codec control function to set constrained / constant quality level, unsigned int parameter.
Definition: aomcx.h:292
@ AV1E_ENABLE_EXT_TILE_DEBUG
Codec control function to enable EXT_TILE_DEBUG in AV1 encoder, unsigned int parameter.
Definition: aomcx.h:1302
@ AV1_SET_REFERENCE
Codec control function to write a frame into a reference buffer.
Definition: aom.h:57
@ AV1_COPY_NEW_FRAME_IMAGE
Codec control function to copy the new frame to an external buffer.
Definition: aom.h:76
const char * aom_codec_iface_name(aom_codec_iface_t *iface)
Return the name for a given interface.
aom_codec_err_t aom_codec_control(aom_codec_ctx_t *ctx, int ctrl_id,...)
Algorithm Control.
const struct aom_codec_iface aom_codec_iface_t
Codec interface structure.
Definition: aom_codec.h:254
int64_t aom_codec_pts_t
Time Stamp Type.
Definition: aom_codec.h:235
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx)
Destroy a codec instance.
aom_codec_err_t
Algorithm return codes.
Definition: aom_codec.h:155
const void * aom_codec_iter_t
Iterator.
Definition: aom_codec.h:288
#define AOM_FRAME_IS_KEY
Definition: aom_codec.h:271
@ AOM_BITS_8
Definition: aom_codec.h:319
@ AOM_CODEC_OK
Operation completed without error.
Definition: aom_codec.h:157
@ AOM_SUPERBLOCK_SIZE_64X64
Definition: aom_codec.h:331
aom_codec_err_t aom_codec_encode(aom_codec_ctx_t *ctx, const aom_image_t *img, aom_codec_pts_t pts, unsigned long duration, aom_enc_frame_flags_t flags)
Encode a frame.
#define aom_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for aom_codec_enc_init_ver()
Definition: aom_encoder.h:938
aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface, aom_codec_enc_cfg_t *cfg, unsigned int usage)
Get the default configuration for a usage.
long aom_enc_frame_flags_t
Encoded Frame Flags.
Definition: aom_encoder.h:375
#define AOM_CODEC_USE_HIGHBITDEPTH
Definition: aom_encoder.h:80
const aom_codec_cx_pkt_t * aom_codec_get_cx_data(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter)
Encoded data iterator.
aom_codec_err_t aom_codec_enc_config_set(aom_codec_ctx_t *ctx, const aom_codec_enc_cfg_t *cfg)
Set or change configuration.
@ AOM_Q
Definition: aom_encoder.h:187
@ AOM_RC_LAST_PASS
Definition: aom_encoder.h:179
@ AOM_RC_FIRST_PASS
Definition: aom_encoder.h:176
@ AOM_KF_DISABLED
Definition: aom_encoder.h:201
@ AOM_CODEC_CX_FRAME_PKT
Definition: aom_encoder.h:108
@ AOM_CODEC_STATS_PKT
Definition: aom_encoder.h:109
Codec context structure.
Definition: aom_codec.h:298
union aom_codec_ctx::@0 config
Encoder output packet.
Definition: aom_encoder.h:120
enum aom_codec_cx_pkt_kind kind
Definition: aom_encoder.h:121
aom_fixed_buf_t twopass_stats
Definition: aom_encoder.h:138
union aom_codec_cx_pkt::@1 data
struct aom_codec_cx_pkt::@1::@2 frame
Encoder configuration structure.
Definition: aom_encoder.h:385
struct aom_rational g_timebase
Stream timebase units.
Definition: aom_encoder.h:487
unsigned int g_h
Height of the frame.
Definition: aom_encoder.h:433
aom_superres_mode rc_superres_mode
Frame super-resolution scaling mode.
Definition: aom_encoder.h:571
enum aom_kf_mode kf_mode
Keyframe placement mode.
Definition: aom_encoder.h:765
enum aom_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: aom_encoder.h:621
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: aom_encoder.h:516
aom_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: aom_encoder.h:465
unsigned int g_w
Width of the frame.
Definition: aom_encoder.h:424
aom_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: aom_encoder.h:495
enum aom_enc_pass g_pass
Multi-pass Encoding Mode.
Definition: aom_encoder.h:502
unsigned int rc_target_bitrate
Target data rate.
Definition: aom_encoder.h:641
unsigned int rc_resize_mode
Mode for spatial resampling, if supported by the codec.
Definition: aom_encoder.h:547
aom_fixed_buf_t rc_twopass_stats_in
Two-pass stats buffer.
Definition: aom_encoder.h:628
unsigned int large_scale_tile
Tile coding mode.
Definition: aom_encoder.h:813
Generic fixed size buffer structure.
Definition: aom_encoder.h:86
size_t sz
Definition: aom_encoder.h:88
void * buf
Definition: aom_encoder.h:87
Image Descriptor.
Definition: aom_image.h:180
aom_img_fmt_t fmt
Definition: aom_image.h:181
int num
Definition: aom_encoder.h:163
int den
Definition: aom_encoder.h:164
AV1 specific reference frame data struct.
Definition: aom.h:89
int use_external_ref
Definition: aom.h:91
aom_image_t img
Definition: aom.h:92
int idx
Definition: aom.h:90