AOMedia Codec SDK
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 "common/tools_common.h"
43 #include "common/video_writer.h"
44 
45 static const char *exec_name;
46 
47 void usage_exit(void) {
48  fprintf(stderr,
49  "Usage: %s <img_width> <img_height> <infile> <outfile> "
50  "<lf_width> <lf_height> <lf_blocksize>\n",
51  exec_name);
52  exit(EXIT_FAILURE);
53 }
54 
55 static int img_size_bytes(aom_image_t *img) {
56  int image_size_bytes = 0;
57  int plane;
58  for (plane = 0; plane < 3; ++plane) {
59  const int w = aom_img_plane_width(img, plane) *
60  ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
61  const int h = aom_img_plane_height(img, plane);
62  image_size_bytes += w * h;
63  }
64  return image_size_bytes;
65 }
66 
67 static int get_frame_stats(aom_codec_ctx_t *ctx, const aom_image_t *img,
68  aom_codec_pts_t pts, unsigned int duration,
70  aom_fixed_buf_t *stats) {
71  int got_pkts = 0;
72  aom_codec_iter_t iter = NULL;
73  const aom_codec_cx_pkt_t *pkt = NULL;
74  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
75  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to get frame stats.");
76 
77  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
78  got_pkts = 1;
79 
80  if (pkt->kind == AOM_CODEC_STATS_PKT) {
81  const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
82  const size_t pkt_size = pkt->data.twopass_stats.sz;
83  stats->buf = realloc(stats->buf, stats->sz + pkt_size);
84  memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
85  stats->sz += pkt_size;
86  }
87  }
88 
89  return got_pkts;
90 }
91 
92 static int encode_frame(aom_codec_ctx_t *ctx, const aom_image_t *img,
93  aom_codec_pts_t pts, unsigned int duration,
94  aom_enc_frame_flags_t flags, AvxVideoWriter *writer) {
95  int got_pkts = 0;
96  aom_codec_iter_t iter = NULL;
97  const aom_codec_cx_pkt_t *pkt = NULL;
98  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
99  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to encode frame.");
100 
101  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
102  got_pkts = 1;
103  if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
104  const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0;
105 
106  if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf,
107  pkt->data.frame.sz,
108  pkt->data.frame.pts))
109  die_codec(ctx, "Failed to write compressed frame.");
110  printf(keyframe ? "K" : ".");
111  fflush(stdout);
112  }
113  }
114 
115  return got_pkts;
116 }
117 
118 static void get_raw_image(aom_image_t **frame_to_encode, aom_image_t *raw,
119  aom_image_t *raw_shift) {
120  if (!CONFIG_LOWBITDEPTH) {
121  // Need to allocate larger buffer to use hbd internal.
122  int input_shift = 0;
123  aom_img_upshift(raw_shift, raw, input_shift);
124  *frame_to_encode = raw_shift;
125  } else {
126  *frame_to_encode = raw;
127  }
128 }
129 
130 static aom_fixed_buf_t pass0(aom_image_t *raw, FILE *infile,
131  const AvxInterface *encoder,
132  const aom_codec_enc_cfg_t *cfg, int lf_width,
133  int lf_height, int lf_blocksize, int flags,
134  aom_image_t *raw_shift) {
135  aom_codec_ctx_t codec;
136  int frame_count = 0;
137  int image_size_bytes = img_size_bytes(raw);
138  int u_blocks, v_blocks;
139  int bu, bv;
140  aom_fixed_buf_t stats = { NULL, 0 };
141  aom_image_t *frame_to_encode;
142 
143  if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, flags))
144  die_codec(&codec, "Failed to initialize encoder");
146  die_codec(&codec, "Failed to turn off auto altref");
148  die_codec(&codec, "Failed to set frame parallel decoding");
149 
150  // How many reference images we need to encode.
151  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
152  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
153 
154  printf("\n First pass: ");
155 
156  for (bv = 0; bv < v_blocks; ++bv) {
157  for (bu = 0; bu < u_blocks; ++bu) {
158  const int block_u_min = bu * lf_blocksize;
159  const int block_v_min = bv * lf_blocksize;
160  int block_u_end = (bu + 1) * lf_blocksize;
161  int block_v_end = (bv + 1) * lf_blocksize;
162  int u_block_size, v_block_size;
163  int block_ref_u, block_ref_v;
164 
165  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
166  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
167  u_block_size = block_u_end - block_u_min;
168  v_block_size = block_v_end - block_v_min;
169  block_ref_u = block_u_min + u_block_size / 2;
170  block_ref_v = block_v_min + v_block_size / 2;
171 
172  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
173  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
174  SEEK_SET);
175  aom_img_read(raw, infile);
176  get_raw_image(&frame_to_encode, raw, raw_shift);
177 
178  // Reference frames can be encoded encoded without tiles.
179  ++frame_count;
180  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
186  &stats);
187  }
188  }
189 
191  die_codec(&codec, "Failed to set frame parallel decoding");
192 
193  for (bv = 0; bv < v_blocks; ++bv) {
194  for (bu = 0; bu < u_blocks; ++bu) {
195  const int block_u_min = bu * lf_blocksize;
196  const int block_v_min = bv * lf_blocksize;
197  int block_u_end = (bu + 1) * lf_blocksize;
198  int block_v_end = (bv + 1) * lf_blocksize;
199  int u, v;
200  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
201  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
202  for (v = block_v_min; v < block_v_end; ++v) {
203  for (u = block_u_min; u < block_u_end; ++u) {
204  printf("C%d, ", (u + v * lf_width));
205  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
206  aom_img_read(raw, infile);
207  get_raw_image(&frame_to_encode, raw, raw_shift);
208 
209  ++frame_count;
210  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
216  &stats);
217  }
218  }
219  }
220  }
221  // Flush encoder.
222  // No ARF, this should not be needed.
223  while (get_frame_stats(&codec, NULL, frame_count, 1, 0, &stats)) {
224  }
225 
226  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
227 
228  printf("\nFirst pass complete. Processed %d frames.\n", frame_count);
229 
230  return stats;
231 }
232 
233 static void pass1(aom_image_t *raw, FILE *infile, const char *outfile_name,
234  const AvxInterface *encoder, aom_codec_enc_cfg_t *cfg,
235  int lf_width, int lf_height, int lf_blocksize, int flags,
236  aom_image_t *raw_shift) {
237  AvxVideoInfo info = { encoder->fourcc,
238  cfg->g_w,
239  cfg->g_h,
240  { cfg->g_timebase.num, cfg->g_timebase.den },
241  0 };
242  AvxVideoWriter *writer = NULL;
243  aom_codec_ctx_t codec;
244  int frame_count = 0;
245  int image_size_bytes = img_size_bytes(raw);
246  int bu, bv;
247  int u_blocks, v_blocks;
248  aom_image_t *frame_to_encode;
249  aom_image_t reference_images[MAX_EXTERNAL_REFERENCES];
250  int reference_image_num = 0;
251  int i;
252 
253  writer = aom_video_writer_open(outfile_name, kContainerIVF, &info);
254  if (!writer) die("Failed to open %s for writing", outfile_name);
255 
256  if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, flags))
257  die_codec(&codec, "Failed to initialize encoder");
259  die_codec(&codec, "Failed to turn off auto altref");
261  die_codec(&codec, "Failed to set frame parallel decoding");
262  // Note: The superblock is a sequence parameter and has to be the same for 1
263  // sequence. In lightfield application, must choose the superblock size(either
264  // 64x64 or 128x128) before the encoding starts. Otherwise, the default is
265  // AOM_SUPERBLOCK_SIZE_DYNAMIC, and the superblock size will be set to 64x64
266  // internally.
269  die_codec(&codec, "Failed to set SB size");
270 
271  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
272  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
273 
274  reference_image_num = u_blocks * v_blocks;
275  // Set the max gf group length so the references are guaranteed to be in
276  // a different gf group than any of the regular frames. This avoids using
277  // both vbr and constant quality mode in a single group. The number of
278  // references now cannot surpass 17 because of the enforced MAX_GF_INTERVAL of
279  // 16. If it is necessary to exceed this reference frame limit, one will have
280  // to do some additional handling to ensure references are in separate gf
281  // groups from the regular frames.
283  reference_image_num - 1))
284  die_codec(&codec, "Failed to set max gf interval");
286  if (!CONFIG_LOWBITDEPTH) ref_fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
287  // Allocate memory with the border so that it can be used as a reference.
288  int border_in_pixels =
289  (codec.config.enc->rc_resize_mode || codec.config.enc->rc_superres_mode)
290  ? AOM_BORDER_IN_PIXELS
291  : AOM_ENC_NO_SCALE_BORDER;
292  for (i = 0; i < reference_image_num; i++) {
293  if (!aom_img_alloc_with_border(&reference_images[i], ref_fmt, cfg->g_w,
294  cfg->g_h, 32, 8, border_in_pixels)) {
295  die("Failed to allocate image.");
296  }
297  }
298 
299  printf("\n Second pass: ");
300 
301  // Encode reference images first.
302  printf("Encoding Reference Images\n");
303  for (bv = 0; bv < v_blocks; ++bv) {
304  for (bu = 0; bu < u_blocks; ++bu) {
305  const int block_u_min = bu * lf_blocksize;
306  const int block_v_min = bv * lf_blocksize;
307  int block_u_end = (bu + 1) * lf_blocksize;
308  int block_v_end = (bv + 1) * lf_blocksize;
309  int u_block_size, v_block_size;
310  int block_ref_u, block_ref_v;
311 
312  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
313  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
314  u_block_size = block_u_end - block_u_min;
315  v_block_size = block_v_end - block_v_min;
316  block_ref_u = block_u_min + u_block_size / 2;
317  block_ref_v = block_v_min + v_block_size / 2;
318 
319  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
320  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
321  SEEK_SET);
322  aom_img_read(raw, infile);
323 
324  get_raw_image(&frame_to_encode, raw, raw_shift);
325 
326  // Reference frames may be encoded without tiles.
327  ++frame_count;
328  printf("Encoding reference image %d of %d\n", bv * u_blocks + bu,
329  u_blocks * v_blocks);
330  encode_frame(&codec, frame_to_encode, frame_count, 1,
336  writer);
337 
339  &reference_images[frame_count - 1]))
340  die_codec(&codec, "Failed to copy decoder reference frame");
341  }
342  }
343 
344  cfg->large_scale_tile = 1;
345  // Fixed q encoding for camera frames.
346  cfg->rc_end_usage = AOM_Q;
347  if (aom_codec_enc_config_set(&codec, cfg))
348  die_codec(&codec, "Failed to configure encoder");
349 
350  // The fixed q value used in encoding.
351  if (aom_codec_control(&codec, AOME_SET_CQ_LEVEL, 36))
352  die_codec(&codec, "Failed to set cq level");
354  die_codec(&codec, "Failed to set frame parallel decoding");
356  die_codec(&codec, "Failed to turn on single tile decoding");
357  // Set tile_columns and tile_rows to MAX values, which guarantees the tile
358  // size of 64 x 64 pixels(i.e. 1 SB) for <= 4k resolution.
360  die_codec(&codec, "Failed to set tile width");
361  if (aom_codec_control(&codec, AV1E_SET_TILE_ROWS, 6))
362  die_codec(&codec, "Failed to set tile height");
363 
364  for (bv = 0; bv < v_blocks; ++bv) {
365  for (bu = 0; bu < u_blocks; ++bu) {
366  const int block_u_min = bu * lf_blocksize;
367  const int block_v_min = bv * lf_blocksize;
368  int block_u_end = (bu + 1) * lf_blocksize;
369  int block_v_end = (bv + 1) * lf_blocksize;
370  int u, v;
371  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
372  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
373  for (v = block_v_min; v < block_v_end; ++v) {
374  for (u = block_u_min; u < block_u_end; ++u) {
375  av1_ref_frame_t ref;
376  ref.idx = 0;
377  ref.use_external_ref = 1;
378  ref.img = reference_images[bv * u_blocks + bu];
379  if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref))
380  die_codec(&codec, "Failed to set reference frame");
381 
382  printf("C%d, ", (u + v * lf_width));
383  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
384  aom_img_read(raw, infile);
385  get_raw_image(&frame_to_encode, raw, raw_shift);
386 
387  ++frame_count;
388  printf("Encoding image %d of %d\n",
389  frame_count - (u_blocks * v_blocks), lf_width * lf_height);
390  encode_frame(&codec, frame_to_encode, frame_count, 1,
396  writer);
397  }
398  }
399  }
400  }
401 
402  // Flush encoder.
403  // No ARF, this should not be needed.
404  while (encode_frame(&codec, NULL, -1, 1, 0, writer)) {
405  }
406 
407  for (i = 0; i < reference_image_num; i++) aom_img_free(&reference_images[i]);
408 
409  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
410 
411  // Modify large_scale_file fourcc.
412  if (cfg->large_scale_tile == 1)
413  aom_video_writer_set_fourcc(writer, LST_FOURCC);
414  aom_video_writer_close(writer);
415 
416  printf("\nSecond pass complete. Processed %d frames.\n", frame_count);
417 }
418 
419 int main(int argc, char **argv) {
420  FILE *infile = NULL;
421  int w, h;
422  // The number of lightfield images in the u and v dimensions.
423  int lf_width, lf_height;
424  // Defines how many images refer to the same reference image for MCP.
425  // lf_blocksize X lf_blocksize images will all use the reference image
426  // in the middle of the block of images.
427  int lf_blocksize;
428  aom_codec_ctx_t codec;
430  aom_image_t raw;
431  aom_image_t raw_shift;
432  aom_codec_err_t res;
433  aom_fixed_buf_t stats;
434  int flags = 0;
435 
436  const AvxInterface *encoder = NULL;
437  const int fps = 30;
438  const int bitrate = 200; // kbit/s
439  const char *const width_arg = argv[1];
440  const char *const height_arg = argv[2];
441  const char *const infile_arg = argv[3];
442  const char *const outfile_arg = argv[4];
443  const char *const lf_width_arg = argv[5];
444  const char *const lf_height_arg = argv[6];
445  const char *lf_blocksize_arg = argv[7];
446  exec_name = argv[0];
447 
448  if (argc < 8) die("Invalid number of arguments");
449 
450  encoder = get_aom_encoder_by_name("av1");
451  if (!encoder) die("Unsupported codec.");
452 
453  w = (int)strtol(width_arg, NULL, 0);
454  h = (int)strtol(height_arg, NULL, 0);
455  lf_width = (int)strtol(lf_width_arg, NULL, 0);
456  lf_height = (int)strtol(lf_height_arg, NULL, 0);
457  lf_blocksize = (int)strtol(lf_blocksize_arg, NULL, 0);
458  lf_blocksize = lf_blocksize < lf_width ? lf_blocksize : lf_width;
459  lf_blocksize = lf_blocksize < lf_height ? lf_blocksize : lf_height;
460 
461  if (w <= 0 || h <= 0 || (w % 2) != 0 || (h % 2) != 0)
462  die("Invalid frame size: %dx%d", w, h);
463  if (lf_width <= 0 || lf_height <= 0)
464  die("Invalid lf_width and/or lf_height: %dx%d", lf_width, lf_height);
465  if (lf_blocksize <= 0) die("Invalid lf_blocksize: %d", lf_blocksize);
466 
467  if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, w, h, 32)) {
468  die("Failed to allocate image.");
469  }
470  if (!CONFIG_LOWBITDEPTH) {
471  // Need to allocate larger buffer to use hbd internal.
473  32);
474  }
475 
476  printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface()));
477 
478  // Configuration
479  res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
480  if (res) die_codec(&codec, "Failed to get default codec config.");
481 
482  cfg.g_w = w;
483  cfg.g_h = h;
484  cfg.g_timebase.num = 1;
485  cfg.g_timebase.den = fps;
486  cfg.rc_target_bitrate = bitrate;
487  cfg.g_error_resilient = 0; // This is required.
488  cfg.g_lag_in_frames = 0; // need to set this since default is 19.
489  cfg.kf_mode = AOM_KF_DISABLED;
490  cfg.large_scale_tile = 0; // Only set it to 1 for camera frame encoding.
491  cfg.g_bit_depth = AOM_BITS_8;
492  flags |= (cfg.g_bit_depth > AOM_BITS_8 || !CONFIG_LOWBITDEPTH)
494  : 0;
495 
496  if (!(infile = fopen(infile_arg, "rb")))
497  die("Failed to open %s for reading", infile_arg);
498 
499  // Pass 0
501  stats = pass0(&raw, infile, encoder, &cfg, lf_width, lf_height, lf_blocksize,
502  flags, &raw_shift);
503 
504  // Pass 1
505  rewind(infile);
506  cfg.g_pass = AOM_RC_LAST_PASS;
507  cfg.rc_twopass_stats_in = stats;
508  pass1(&raw, infile, outfile_arg, encoder, &cfg, lf_width, lf_height,
509  lf_blocksize, flags, &raw_shift);
510  free(stats.buf);
511 
512  if (!CONFIG_LOWBITDEPTH) aom_img_free(&raw_shift);
513  aom_img_free(&raw);
514  fclose(infile);
515 
516  return EXIT_SUCCESS;
517 }
AOM_IMG_FMT_I420
@ AOM_IMG_FMT_I420
Definition: aom_image.h:45
aom_image::fmt
aom_img_fmt_t fmt
Definition: aom_image.h:142
AOM_EFLAG_NO_UPD_ENTROPY
#define AOM_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: aomcx.h:120
aom_codec_enc_cfg
Encoder configuration structure.
Definition: aom_encoder.h:228
AOM_EFLAG_NO_REF_BWD
#define AOM_EFLAG_NO_REF_BWD
Don't reference the bwd reference frame.
Definition: aomcx.h:86
aom_img_fmt_t
enum aom_img_fmt aom_img_fmt_t
List of supported image formats.
AV1E_SET_MAX_GF_INTERVAL
@ AV1E_SET_MAX_GF_INTERVAL
Codec control function to set minimum interval between GF/ARF frames.
Definition: aomcx.h:496
aom_fixed_buf
Generic fixed size buffer structure.
Definition: aom_encoder.h:76
aom_codec_enc_cfg::rc_resize_mode
unsigned int rc_resize_mode
Mode for spatial resampling, if supported by the codec.
Definition: aom_encoder.h:385
aom_codec_enc_cfg::g_lag_in_frames
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: aom_encoder.h:354
AOM_BITS_8
@ AOM_BITS_8
Definition: aom_codec.h:225
av1_ref_frame::use_external_ref
int use_external_ref
Definition: aom.h:110
AOM_EFLAG_NO_REF_LAST3
#define AOM_EFLAG_NO_REF_LAST3
Don't reference the last3 frame.
Definition: aomcx.h:64
aom_codec_ctx
Codec context structure.
Definition: aom_codec.h:204
av1_ref_frame
AV1 specific reference frame data struct.
Definition: aom.h:108
aom_codec_iter_t
const typedef void * aom_codec_iter_t
Iterator.
Definition: aom_codec.h:194
aomcx.h
Provides definitions for using AOM or AV1 encoder algorithm within the aom Codec Interface.
AOM_CODEC_OK
@ AOM_CODEC_OK
Operation completed without error.
Definition: aom_codec.h:103
aom_codec_ctx::config
union aom_codec_ctx::@0 config
AOM_CODEC_USE_HIGHBITDEPTH
#define AOM_CODEC_USE_HIGHBITDEPTH
Make the encoder output one partition at a time.
Definition: aom_encoder.h:70
aom_codec_enc_cfg::rc_target_bitrate
unsigned int rc_target_bitrate
Target data rate.
Definition: aom_encoder.h:481
AOM_RC_FIRST_PASS
@ AOM_RC_FIRST_PASS
Definition: aom_encoder.h:186
aom_img_free
void aom_img_free(aom_image_t *img)
Close an image descriptor.
aom_codec_enc_config_set
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.
AOME_SET_ENABLEAUTOALTREF
@ AOME_SET_ENABLEAUTOALTREF
Codec control function to enable automatic set and use alf frames.
Definition: aomcx.h:186
av1_ref_frame::img
aom_image_t img
Definition: aom.h:111
aom_codec_iface_name
const char * aom_codec_iface_name(aom_codec_iface_t *iface)
Return the name for a given interface.
aom_rational::den
int den
Definition: aom_encoder.h:180
aom_codec_destroy
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx)
Destroy a codec instance.
AV1E_SET_SINGLE_TILE_DECODING
@ AV1E_SET_SINGLE_TILE_DECODING
Codec control function to set the single tile decoding mode to 0 or 1.
Definition: aomcx.h:1039
AV1_COPY_NEW_FRAME_IMAGE
@ AV1_COPY_NEW_FRAME_IMAGE
Definition: aom.h:66
aom_img_alloc_with_border
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.
AOM_RC_LAST_PASS
@ AOM_RC_LAST_PASS
Definition: aom_encoder.h:187
aom_img_alloc
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.
aom_codec_control
#define aom_codec_control(ctx, id, data)
aom_codec_control wrapper macro
Definition: aom_codec.h:414
aom_img_plane_width
int aom_img_plane_width(const aom_image_t *img, int plane)
Get the width of a plane.
aom_codec_cx_pkt::twopass_stats
aom_fixed_buf_t twopass_stats
Definition: aom_encoder.h:156
AV1E_SET_TILE_ROWS
@ AV1E_SET_TILE_ROWS
Codec control function to set number of tile rows.
Definition: aomcx.h:322
aom_codec_enc_cfg::kf_mode
enum aom_kf_mode kf_mode
Keyframe placement mode.
Definition: aom_encoder.h:611
AOM_SUPERBLOCK_SIZE_64X64
@ AOM_SUPERBLOCK_SIZE_64X64
Definition: aom_codec.h:237
AOM_EFLAG_NO_UPD_LAST
#define AOM_EFLAG_NO_UPD_LAST
Don't update the last frame.
Definition: aomcx.h:100
AV1E_SET_FRAME_PARALLEL_DECODING
@ AV1E_SET_FRAME_PARALLEL_DECODING
Codec control function to enable frame parallel decoding feature.
Definition: aomcx.h:341
aom_codec_enc_cfg::rc_end_usage
enum aom_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: aom_encoder.h:461
aom_codec_enc_cfg::g_pass
enum aom_enc_pass g_pass
Multi-pass Encoding Mode.
Definition: aom_encoder.h:340
aom_codec_pts_t
int64_t aom_codec_pts_t
Time Stamp Type.
Definition: aom_encoder.h:86
aom_enc_frame_flags_t
long aom_enc_frame_flags_t
Encoded Frame Flags.
Definition: aom_encoder.h:219
aom_codec_enc_cfg::g_w
unsigned int g_w
Width of the frame.
Definition: aom_encoder.h:267
aom_codec_enc_cfg::g_error_resilient
aom_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: aom_encoder.h:333
AOM_EFLAG_NO_UPD_GF
#define AOM_EFLAG_NO_UPD_GF
Don't update the golden frame.
Definition: aomcx.h:107
AV1E_SET_SUPERBLOCK_SIZE
@ AV1E_SET_SUPERBLOCK_SIZE
Codec control function to set intended superblock size.
Definition: aomcx.h:544
aom_codec_enc_cfg::rc_twopass_stats_in
aom_fixed_buf_t rc_twopass_stats_in
Two-pass stats buffer.
Definition: aom_encoder.h:468
aom_codec_err_t
aom_codec_err_t
Algorithm return codes.
Definition: aom_codec.h:101
AOM_EFLAG_NO_REF_GF
#define AOM_EFLAG_NO_REF_GF
Don't reference the golden frame.
Definition: aomcx.h:71
aom_encoder.h
Describes the encoder algorithm interface to applications.
aom_codec_get_cx_data
const aom_codec_cx_pkt_t * aom_codec_get_cx_data(aom_codec_ctx_t *ctx, aom_codec_iter_t *iter)
Encoded data iterator.
av1_ref_frame::idx
int idx
Definition: aom.h:109
aom_codec_encode
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.
AOM_Q
@ AOM_Q
Definition: aom_encoder.h:195
aom_codec_cx_pkt::data
union aom_codec_cx_pkt::@1 data
AOM_KF_DISABLED
@ AOM_KF_DISABLED
Definition: aom_encoder.h:209
aom_codec_cx_pkt::frame
struct aom_codec_cx_pkt::@1::@2 frame
aom_codec_cx_pkt
Encoder output packet.
Definition: aom_encoder.h:138
AOM_EFLAG_NO_UPD_ARF
#define AOM_EFLAG_NO_UPD_ARF
Don't update the alternate reference frame.
Definition: aomcx.h:114
AV1E_SET_TILE_COLUMNS
@ AV1E_SET_TILE_COLUMNS
Codec control function to set number of tile columns.
Definition: aomcx.h:306
AOM_EFLAG_NO_REF_LAST2
#define AOM_EFLAG_NO_REF_LAST2
Don't reference the last2 frame.
Definition: aomcx.h:57
aom_codec_enc_cfg::rc_superres_mode
unsigned int rc_superres_mode
Frame super-resolution scaling mode.
Definition: aom_encoder.h:411
AOM_CODEC_STATS_PKT
@ AOM_CODEC_STATS_PKT
Definition: aom_encoder.h:127
aom_codec_enc_cfg::g_h
unsigned int g_h
Height of the frame.
Definition: aom_encoder.h:276
AOM_CODEC_CX_FRAME_PKT
@ AOM_CODEC_CX_FRAME_PKT
Definition: aom_encoder.h:126
AOM_EFLAG_NO_REF_ARF2
#define AOM_EFLAG_NO_REF_ARF2
Don't reference the alt2 reference frame.
Definition: aomcx.h:93
aom_codec_enc_init
#define aom_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for aom_codec_enc_init_ver()
Definition: aom_encoder.h:764
AOME_SET_CQ_LEVEL
@ AOME_SET_CQ_LEVEL
Codec control function to set constrained quality level.
Definition: aomcx.h:227
aom_image
Image Descriptor.
Definition: aom_image.h:141
aom_fixed_buf::sz
size_t sz
Definition: aom_encoder.h:78
aom_codec_cx_pkt::kind
enum aom_codec_cx_pkt_kind kind
Definition: aom_encoder.h:139
aom_codec_enc_cfg::g_timebase
struct aom_rational g_timebase
Stream timebase units.
Definition: aom_encoder.h:325
aom_img_plane_height
int aom_img_plane_height(const aom_image_t *img, int plane)
Get the height of a plane.
aom_codec_enc_cfg::g_bit_depth
aom_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: aom_encoder.h:303
AOM_FRAME_IS_KEY
#define AOM_FRAME_IS_KEY
Definition: aom_encoder.h:96
aom_codec_enc_cfg::large_scale_tile
unsigned int large_scale_tile
Tile coding mode.
Definition: aom_encoder.h:659
AOM_IMG_FMT_HIGHBITDEPTH
#define AOM_IMG_FMT_HIGHBITDEPTH
Definition: aom_image.h:38
aom_fixed_buf::buf
void * buf
Definition: aom_encoder.h:77
AOM_EFLAG_NO_REF_ARF
#define AOM_EFLAG_NO_REF_ARF
Don't reference the alternate reference frame.
Definition: aomcx.h:79
aom_codec_enc_config_default
aom_codec_err_t aom_codec_enc_config_default(aom_codec_iface_t *iface, aom_codec_enc_cfg_t *cfg, unsigned int reserved)
Get a default configuration.
AV1_SET_REFERENCE
@ AV1_SET_REFERENCE
Definition: aom.h:60
aom_rational::num
int num
Definition: aom_encoder.h:179