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 "av1/common/enums.h"
41 
42 #include "common/tools_common.h"
43 #include "common/video_writer.h"
44 
45 #define MAX_EXTERNAL_REFERENCES 128
46 #define AOM_BORDER_IN_PIXELS 288
47 
48 static const char *exec_name;
49 
50 void usage_exit(void) {
51  fprintf(stderr,
52  "Usage: %s <img_width> <img_height> <infile> <outfile> "
53  "<lf_width> <lf_height> <lf_blocksize>\n",
54  exec_name);
55  exit(EXIT_FAILURE);
56 }
57 
58 static int aom_img_size_bytes(aom_image_t *img) {
59  int image_size_bytes = 0;
60  int plane;
61  for (plane = 0; plane < 3; ++plane) {
62  const int w = aom_img_plane_width(img, plane) *
63  ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
64  const int h = aom_img_plane_height(img, plane);
65  image_size_bytes += w * h;
66  }
67  return image_size_bytes;
68 }
69 
70 static int get_frame_stats(aom_codec_ctx_t *ctx, const aom_image_t *img,
71  aom_codec_pts_t pts, unsigned int duration,
73  aom_fixed_buf_t *stats) {
74  int got_pkts = 0;
75  aom_codec_iter_t iter = NULL;
76  const aom_codec_cx_pkt_t *pkt = NULL;
77  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
78  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to get frame stats.");
79 
80  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
81  got_pkts = 1;
82 
83  if (pkt->kind == AOM_CODEC_STATS_PKT) {
84  const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
85  const size_t pkt_size = pkt->data.twopass_stats.sz;
86  stats->buf = realloc(stats->buf, stats->sz + pkt_size);
87  memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
88  stats->sz += pkt_size;
89  }
90  }
91 
92  return got_pkts;
93 }
94 
95 static int encode_frame(aom_codec_ctx_t *ctx, const aom_image_t *img,
96  aom_codec_pts_t pts, unsigned int duration,
97  aom_enc_frame_flags_t flags, AvxVideoWriter *writer) {
98  int got_pkts = 0;
99  aom_codec_iter_t iter = NULL;
100  const aom_codec_cx_pkt_t *pkt = NULL;
101  const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
102  if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to encode frame.");
103 
104  while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
105  got_pkts = 1;
106  if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
107  const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0;
108 
109  if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf,
110  pkt->data.frame.sz,
111  pkt->data.frame.pts))
112  die_codec(ctx, "Failed to write compressed frame.");
113  printf(keyframe ? "K" : ".");
114  fflush(stdout);
115  }
116  }
117 
118  return got_pkts;
119 }
120 
121 static void get_raw_image(aom_image_t **frame_to_encode, aom_image_t *raw,
122  aom_image_t *raw_shift) {
123  if (!CONFIG_LOWBITDEPTH) {
124  // Need to allocate larger buffer to use hbd internal.
125  int input_shift = 0;
126  aom_img_upshift(raw_shift, raw, input_shift);
127  *frame_to_encode = raw_shift;
128  } else {
129  *frame_to_encode = raw;
130  }
131 }
132 
133 static aom_fixed_buf_t pass0(aom_image_t *raw, FILE *infile,
134  const AvxInterface *encoder,
135  const aom_codec_enc_cfg_t *cfg, int lf_width,
136  int lf_height, int lf_blocksize, int flags,
137  aom_image_t *raw_shift) {
138  aom_codec_ctx_t codec;
139  int frame_count = 0;
140  int image_size_bytes = aom_img_size_bytes(raw);
141  int u_blocks, v_blocks;
142  int bu, bv;
143  aom_fixed_buf_t stats = { NULL, 0 };
144  aom_image_t *frame_to_encode;
145 
146  if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, flags))
147  die_codec(&codec, "Failed to initialize encoder");
149  die_codec(&codec, "Failed to turn off auto altref");
151  die_codec(&codec, "Failed to set frame parallel decoding");
152 
153  // How many reference images we need to encode.
154  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
155  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
156 
157  printf("\n First pass: ");
158 
159  for (bv = 0; bv < v_blocks; ++bv) {
160  for (bu = 0; bu < u_blocks; ++bu) {
161  const int block_u_min = bu * lf_blocksize;
162  const int block_v_min = bv * lf_blocksize;
163  int block_u_end = (bu + 1) * lf_blocksize;
164  int block_v_end = (bv + 1) * lf_blocksize;
165  int u_block_size, v_block_size;
166  int block_ref_u, block_ref_v;
167 
168  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
169  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
170  u_block_size = block_u_end - block_u_min;
171  v_block_size = block_v_end - block_v_min;
172  block_ref_u = block_u_min + u_block_size / 2;
173  block_ref_v = block_v_min + v_block_size / 2;
174 
175  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
176  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
177  SEEK_SET);
178  aom_img_read(raw, infile);
179  get_raw_image(&frame_to_encode, raw, raw_shift);
180 
181  // Reference frames can be encoded encoded without tiles.
182  ++frame_count;
183  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
189  &stats);
190  }
191  }
192 
194  die_codec(&codec, "Failed to set frame parallel decoding");
195 
196  for (bv = 0; bv < v_blocks; ++bv) {
197  for (bu = 0; bu < u_blocks; ++bu) {
198  const int block_u_min = bu * lf_blocksize;
199  const int block_v_min = bv * lf_blocksize;
200  int block_u_end = (bu + 1) * lf_blocksize;
201  int block_v_end = (bv + 1) * lf_blocksize;
202  int u, v;
203  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
204  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
205  for (v = block_v_min; v < block_v_end; ++v) {
206  for (u = block_u_min; u < block_u_end; ++u) {
207  printf("C%d, ", (u + v * lf_width));
208  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
209  aom_img_read(raw, infile);
210  get_raw_image(&frame_to_encode, raw, raw_shift);
211 
212  ++frame_count;
213  get_frame_stats(&codec, frame_to_encode, frame_count, 1,
219  &stats);
220  }
221  }
222  }
223  }
224  // Flush encoder.
225  // No ARF, this should not be needed.
226  while (get_frame_stats(&codec, NULL, frame_count, 1, 0, &stats)) {
227  }
228 
229  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
230 
231  printf("\nFirst pass complete. Processed %d frames.\n", frame_count);
232 
233  return stats;
234 }
235 
236 static void pass1(aom_image_t *raw, FILE *infile, const char *outfile_name,
237  const AvxInterface *encoder, aom_codec_enc_cfg_t *cfg,
238  int lf_width, int lf_height, int lf_blocksize, int flags,
239  aom_image_t *raw_shift) {
240  AvxVideoInfo info = { encoder->fourcc,
241  cfg->g_w,
242  cfg->g_h,
243  { cfg->g_timebase.num, cfg->g_timebase.den } };
244  AvxVideoWriter *writer = NULL;
245  aom_codec_ctx_t codec;
246  int frame_count = 0;
247  int image_size_bytes = aom_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->codec_interface(), cfg, flags))
259  die_codec(&codec, "Failed to initialize encoder");
261  die_codec(&codec, "Failed to turn off auto altref");
263  die_codec(&codec, "Failed to set frame parallel decoding");
264  // Note: The superblock is a sequence parameter and has to be the same for 1
265  // sequence. In lightfield application, must choose the superblock size(either
266  // 64x64 or 128x128) before the encoding starts. Otherwise, the default is
267  // AOM_SUPERBLOCK_SIZE_DYNAMIC, and the superblock size will be set to 64x64
268  // internally.
271  die_codec(&codec, "Failed to set SB size");
272 
273  u_blocks = (lf_width + lf_blocksize - 1) / lf_blocksize;
274  v_blocks = (lf_height + lf_blocksize - 1) / lf_blocksize;
275 
276  reference_image_num = u_blocks * v_blocks;
278  if (!CONFIG_LOWBITDEPTH) ref_fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
279  // Allocate memory with the border so that it can be used as a reference.
280  for (i = 0; i < reference_image_num; i++) {
281  if (!aom_img_alloc_with_border(&reference_images[i], ref_fmt, cfg->g_w,
282  cfg->g_h, 32, 8, AOM_BORDER_IN_PIXELS)) {
283  die("Failed to allocate image.");
284  }
285  }
286 
287  printf("\n Second pass: ");
288 
289  // Encode reference images first.
290  printf("Encoding Reference Images\n");
291  for (bv = 0; bv < v_blocks; ++bv) {
292  for (bu = 0; bu < u_blocks; ++bu) {
293  const int block_u_min = bu * lf_blocksize;
294  const int block_v_min = bv * lf_blocksize;
295  int block_u_end = (bu + 1) * lf_blocksize;
296  int block_v_end = (bv + 1) * lf_blocksize;
297  int u_block_size, v_block_size;
298  int block_ref_u, block_ref_v;
299 
300  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
301  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
302  u_block_size = block_u_end - block_u_min;
303  v_block_size = block_v_end - block_v_min;
304  block_ref_u = block_u_min + u_block_size / 2;
305  block_ref_v = block_v_min + v_block_size / 2;
306 
307  printf("A%d, ", (block_ref_u + block_ref_v * lf_width));
308  fseek(infile, (block_ref_u + block_ref_v * lf_width) * image_size_bytes,
309  SEEK_SET);
310  aom_img_read(raw, infile);
311 
312  get_raw_image(&frame_to_encode, raw, raw_shift);
313 
314  // Reference frames may be encoded without tiles.
315  ++frame_count;
316  printf("Encoding reference image %d of %d\n", bv * u_blocks + bu,
317  u_blocks * v_blocks);
318  encode_frame(&codec, frame_to_encode, frame_count, 1,
324  writer);
325 
327  &reference_images[frame_count - 1]))
328  die_codec(&codec, "Failed to copy decoder reference frame");
329  }
330  }
331 
332  cfg->large_scale_tile = 1;
333  // Fixed q encoding for camera frames.
334  cfg->rc_end_usage = AOM_Q;
335  if (aom_codec_enc_config_set(&codec, cfg))
336  die_codec(&codec, "Failed to configure encoder");
337 
338  // The fixed q value used in encoding.
339  if (aom_codec_control(&codec, AOME_SET_CQ_LEVEL, 36))
340  die_codec(&codec, "Failed to set cq level");
342  die_codec(&codec, "Failed to set frame parallel decoding");
344  die_codec(&codec, "Failed to turn on single tile decoding");
345  // Set tile_columns and tile_rows to MAX values, which guarantees the tile
346  // size of 64 x 64 pixels(i.e. 1 SB) for <= 4k resolution.
348  die_codec(&codec, "Failed to set tile width");
349  if (aom_codec_control(&codec, AV1E_SET_TILE_ROWS, 6))
350  die_codec(&codec, "Failed to set tile height");
351 
352  for (bv = 0; bv < v_blocks; ++bv) {
353  for (bu = 0; bu < u_blocks; ++bu) {
354  const int block_u_min = bu * lf_blocksize;
355  const int block_v_min = bv * lf_blocksize;
356  int block_u_end = (bu + 1) * lf_blocksize;
357  int block_v_end = (bv + 1) * lf_blocksize;
358  int u, v;
359  block_u_end = block_u_end < lf_width ? block_u_end : lf_width;
360  block_v_end = block_v_end < lf_height ? block_v_end : lf_height;
361  for (v = block_v_min; v < block_v_end; ++v) {
362  for (u = block_u_min; u < block_u_end; ++u) {
363  av1_ref_frame_t ref;
364  ref.idx = 0;
365  ref.use_external_ref = 1;
366  ref.img = reference_images[bv * u_blocks + bu];
367  if (aom_codec_control(&codec, AV1_SET_REFERENCE, &ref))
368  die_codec(&codec, "Failed to set reference frame");
369 
370  printf("C%d, ", (u + v * lf_width));
371  fseek(infile, (u + v * lf_width) * image_size_bytes, SEEK_SET);
372  aom_img_read(raw, infile);
373  get_raw_image(&frame_to_encode, raw, raw_shift);
374 
375  ++frame_count;
376  printf("Encoding image %d of %d\n",
377  frame_count - (u_blocks * v_blocks), lf_width * lf_height);
378  encode_frame(&codec, frame_to_encode, frame_count, 1,
384  writer);
385  }
386  }
387  }
388  }
389 
390  // Flush encoder.
391  // No ARF, this should not be needed.
392  while (encode_frame(&codec, NULL, -1, 1, 0, writer)) {
393  }
394 
395  for (i = 0; i < reference_image_num; i++) aom_img_free(&reference_images[i]);
396 
397  if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
398  aom_video_writer_close(writer);
399 
400  printf("\nSecond pass complete. Processed %d frames.\n", frame_count);
401 }
402 
403 int main(int argc, char **argv) {
404  FILE *infile = NULL;
405  int w, h;
406  // The number of lightfield images in the u and v dimensions.
407  int lf_width, lf_height;
408  // Defines how many images refer to the same reference image for MCP.
409  // lf_blocksize X lf_blocksize images will all use the reference image
410  // in the middle of the block of images.
411  int lf_blocksize;
412  aom_codec_ctx_t codec;
414  aom_image_t raw;
415  aom_image_t raw_shift;
416  aom_codec_err_t res;
417  aom_fixed_buf_t stats;
418  int flags = 0;
419 
420  const AvxInterface *encoder = NULL;
421  const int fps = 30;
422  const int bitrate = 200; // kbit/s
423  const char *const width_arg = argv[1];
424  const char *const height_arg = argv[2];
425  const char *const infile_arg = argv[3];
426  const char *const outfile_arg = argv[4];
427  const char *const lf_width_arg = argv[5];
428  const char *const lf_height_arg = argv[6];
429  const char *lf_blocksize_arg = argv[7];
430  exec_name = argv[0];
431 
432  if (argc < 8) die("Invalid number of arguments");
433 
434  encoder = get_aom_encoder_by_name("av1");
435  if (!encoder) die("Unsupported codec.");
436 
437  w = (int)strtol(width_arg, NULL, 0);
438  h = (int)strtol(height_arg, NULL, 0);
439  lf_width = (int)strtol(lf_width_arg, NULL, 0);
440  lf_height = (int)strtol(lf_height_arg, NULL, 0);
441  lf_blocksize = (int)strtol(lf_blocksize_arg, NULL, 0);
442  lf_blocksize = lf_blocksize < lf_width ? lf_blocksize : lf_width;
443  lf_blocksize = lf_blocksize < lf_height ? lf_blocksize : lf_height;
444 
445  if (w <= 0 || h <= 0 || (w % 2) != 0 || (h % 2) != 0)
446  die("Invalid frame size: %dx%d", w, h);
447  if (lf_width <= 0 || lf_height <= 0)
448  die("Invalid lf_width and/or lf_height: %dx%d", lf_width, lf_height);
449  if (lf_blocksize <= 0) die("Invalid lf_blocksize: %d", lf_blocksize);
450 
451  if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, w, h, 32)) {
452  die("Failed to allocate image.");
453  }
454  if (!CONFIG_LOWBITDEPTH) {
455  // Need to allocate larger buffer to use hbd internal.
457  32);
458  }
459 
460  printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface()));
461 
462  // Configuration
463  res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
464  if (res) die_codec(&codec, "Failed to get default codec config.");
465 
466  cfg.g_w = w;
467  cfg.g_h = h;
468  cfg.g_timebase.num = 1;
469  cfg.g_timebase.den = fps;
470  cfg.rc_target_bitrate = bitrate;
471  cfg.g_error_resilient = 0; // This is required.
472  cfg.g_lag_in_frames = 0; // need to set this since default is 19.
473  cfg.kf_mode = AOM_KF_DISABLED;
474  cfg.large_scale_tile = 0; // Only set it to 1 for camera frame encoding.
475  cfg.g_bit_depth = AOM_BITS_8;
476  flags |= (cfg.g_bit_depth > AOM_BITS_8 || !CONFIG_LOWBITDEPTH)
478  : 0;
479 
480  if (!(infile = fopen(infile_arg, "rb")))
481  die("Failed to open %s for reading", infile_arg);
482 
483  // Pass 0
485  stats = pass0(&raw, infile, encoder, &cfg, lf_width, lf_height, lf_blocksize,
486  flags, &raw_shift);
487 
488  // Pass 1
489  rewind(infile);
490  cfg.g_pass = AOM_RC_LAST_PASS;
491  cfg.rc_twopass_stats_in = stats;
492  pass1(&raw, infile, outfile_arg, encoder, &cfg, lf_width, lf_height,
493  lf_blocksize, flags, &raw_shift);
494  free(stats.buf);
495 
496  if (!CONFIG_LOWBITDEPTH) aom_img_free(&raw_shift);
497  aom_img_free(&raw);
498  fclose(infile);
499 
500  return EXIT_SUCCESS;
501 }
void * buf
Definition: aom_encoder.h:85
Operation completed without error.
Definition: aom_codec.h:103
Definition: aom_encoder.h:196
unsigned int g_w
Width of the frame.
Definition: aom_encoder.h:276
unsigned int rc_target_bitrate
Target data rate.
Definition: aom_encoder.h:491
Describes the encoder algorithm interface to applications.
#define aom_codec_enc_init(ctx, iface, cfg, flags)
Convenience macro for aom_codec_enc_init_ver()
Definition: aom_encoder.h:774
Encoder configuration structure.
Definition: aom_encoder.h:237
int idx
Definition: aom.h:109
enum aom_kf_mode kf_mode
Keyframe placement mode.
Definition: aom_encoder.h:621
aom_fixed_buf_t rc_twopass_stats_in
Two-pass stats buffer.
Definition: aom_encoder.h:478
enum aom_img_fmt aom_img_fmt_t
List of supported image formats.
int64_t aom_codec_pts_t
Time Stamp Type.
Definition: aom_encoder.h:94
Codec control function to set constrained quality level.
Definition: aomcx.h:231
aom_codec_er_flags_t g_error_resilient
Enable error resilient modes.
Definition: aom_encoder.h:342
Provides definitions for using AOM or AV1 encoder algorithm within the aom Codec Interface.
#define AOM_EFLAG_NO_UPD_LAST
Don't update the last frame.
Definition: aomcx.h:100
Codec context structure.
Definition: aom_codec.h:204
#define AOM_FRAME_IS_KEY
Definition: aom_encoder.h:104
Codec control function to enable frame parallel decoding feature.
Definition: aomcx.h:338
#define AOM_IMG_FMT_HIGHBITDEPTH
Definition: aom_image.h:38
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.
Image Descriptor.
Definition: aom_image.h:141
Codec control function to set number of tile columns.
Definition: aomcx.h:308
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.
enum aom_rc_mode rc_end_usage
Rate control algorithm to use.
Definition: aom_encoder.h:471
Generic fixed size buffer structure.
Definition: aom_encoder.h:84
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_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_EFLAG_NO_REF_LAST3
Don't reference the last3 frame.
Definition: aomcx.h:64
Definition: aom_codec.h:225
Definition: aom.h:60
const char * aom_codec_iface_name(aom_codec_iface_t *iface)
Return the name for a given interface.
struct aom_rational g_timebase
Stream timebase units.
Definition: aom_encoder.h:334
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx)
Destroy a codec instance.
Definition: aom_encoder.h:136
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.
enum aom_codec_cx_pkt_kind kind
Definition: aom_encoder.h:148
void aom_img_free(aom_image_t *img)
Close an image descriptor.
struct aom_codec_cx_pkt::@1::@2 frame
Definition: aom_encoder.h:135
#define AOM_EFLAG_NO_UPD_GF
Don't update the golden frame.
Definition: aomcx.h:107
#define aom_codec_control(ctx, id, data)
aom_codec_control wrapper macro
Definition: aom_codec.h:423
int aom_img_plane_width(const aom_image_t *img, int plane)
Get the width of a plane.
#define AOM_EFLAG_NO_REF_GF
Don't reference the golden frame.
Definition: aomcx.h:71
#define AOM_CODEC_USE_HIGHBITDEPTH
Definition: aom_encoder.h:78
unsigned int large_scale_tile
Tile coding mode.
Definition: aom_encoder.h:669
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.
AV1 specific reference frame data struct.
Definition: aom.h:108
Definition: aom.h:66
int aom_img_plane_height(const aom_image_t *img, int plane)
Get the height of a plane.
#define AOM_EFLAG_NO_UPD_ARF
Don't update the alternate reference frame.
Definition: aomcx.h:114
Definition: aom_codec.h:237
Codec control function to enable automatic set and use alf frames.
Definition: aomcx.h:190
const void * aom_codec_iter_t
Iterator.
Definition: aom_codec.h:194
#define AOM_EFLAG_NO_REF_ARF2
Don't reference the alt2 reference frame.
Definition: aomcx.h:93
int use_external_ref
Definition: aom.h:110
#define AOM_EFLAG_NO_UPD_ENTROPY
Disable entropy update.
Definition: aomcx.h:120
Codec control function to set number of tile rows.
Definition: aomcx.h:326
aom_codec_err_t
Algorithm return codes.
Definition: aom_codec.h:101
aom_fixed_buf_t twopass_stats
Definition: aom_encoder.h:165
Definition: aom_encoder.h:204
int den
Definition: aom_encoder.h:189
aom_image_t img
Definition: aom.h:111
Encoder output packet.
Definition: aom_encoder.h:147
#define AOM_EFLAG_NO_REF_ARF
Don't reference the alternate reference frame.
Definition: aomcx.h:79
int num
Definition: aom_encoder.h:188
Definition: aom_image.h:45
unsigned int g_lag_in_frames
Allow lagged encoding.
Definition: aom_encoder.h:363
Codec control function to set the single tile decoding mode to 0 or 1.
Definition: aomcx.h:832
long aom_enc_frame_flags_t
Encoded Frame Flags.
Definition: aom_encoder.h:228
union aom_codec_cx_pkt::@1 data
aom_bit_depth_t g_bit_depth
Bit-depth of the codec.
Definition: aom_encoder.h:312
#define AOM_EFLAG_NO_REF_LAST2
Don't reference the last2 frame.
Definition: aomcx.h:57
size_t sz
Definition: aom_encoder.h:86
Codec control function to set intended superblock size.
Definition: aomcx.h:530
Definition: aom_encoder.h:195
Definition: aom_encoder.h:218
enum aom_enc_pass g_pass
Multi-pass Encoding Mode.
Definition: aom_encoder.h:349
unsigned int g_h
Height of the frame.
Definition: aom_encoder.h:285
aom_img_fmt_t fmt
Definition: aom_image.h:142
#define AOM_EFLAG_NO_REF_BWD
Don't reference the bwd reference frame.
Definition: aomcx.h:86