FFmpeg: libavcodec/libfdk-aacenc.c Source File

FFmpeg
libfdk-aacenc.c
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1 /*
2  * AAC encoder wrapper
3  * Copyright (c) 2012 Martin Storsjo
4  *
5  * This file is part of FFmpeg.
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 #include <fdk-aac/aacenc_lib.h>
21 
22 #include "libavutil/channel_layout.h"
23 #include "libavutil/common.h"
24 #include "libavutil/opt.h"
25 #include "avcodec.h"
26 #include "audio_frame_queue.h"
27 #include "codec_internal.h"
28 #include "encode.h"
29 #include "profiles.h"
30 
31 #ifdef AACENCODER_LIB_VL0
32 #define FDKENC_VER_AT_LEAST(vl0, vl1) \
33  ((AACENCODER_LIB_VL0 > vl0) || \
34  (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1))
35 #else
36  #define FDKENC_VER_AT_LEAST(vl0, vl1) 0
37 #endif
38 
39 typedef struct AACContext {
40   const AVClass *class;
41   HANDLE_AACENCODER handle;
42   int afterburner;
43   int eld_sbr;
44   int eld_v2;
45   int signaling;
46   int latm;
47   int header_period;
48   int vbr;
49 
50   AudioFrameQueue afq;
51 } AACContext;
52 
53  static const AVOption aac_enc_options[] = {
54  { "afterburner", "Afterburner (improved quality)", offsetof(AACContext, afterburner), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
55  { "eld_sbr", "Enable SBR for ELD (for SBR in other configurations, use the -profile parameter)", offsetof(AACContext, eld_sbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
56 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
57  { "eld_v2", "Enable ELDv2 (LD-MPS extension for ELD stereo signals)", offsetof(AACContext, eld_v2), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
58 #endif
59  { "signaling", "SBR/PS signaling style", offsetof(AACContext, signaling), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
60  { "default", "Choose signaling implicitly (explicit hierarchical by default, implicit if global header is disabled)", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
61  { "implicit", "Implicit backwards compatible signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
62  { "explicit_sbr", "Explicit SBR, implicit PS signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
63  { "explicit_hierarchical", "Explicit hierarchical signaling", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, "signaling" },
64  { "latm", "Output LATM/LOAS encapsulated data", offsetof(AACContext, latm), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
65  { "header_period", "StreamMuxConfig and PCE repetition period (in frames)", offsetof(AACContext, header_period), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 0xffff, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
66  { "vbr", "VBR mode (1-5)", offsetof(AACContext, vbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 5, AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM },
67  FF_AAC_PROFILE_OPTS
68  { NULL }
69 };
70 
71  static const AVClass aac_enc_class = {
72  .class_name = "libfdk_aac",
73  .item_name = av_default_item_name,
74  .option = aac_enc_options,
75  .version = LIBAVUTIL_VERSION_INT,
76 };
77 
78  static const char *aac_get_error(AACENC_ERROR err)
79 {
80  switch (err) {
81  case AACENC_OK:
82  return "No error";
83  case AACENC_INVALID_HANDLE:
84  return "Invalid handle";
85  case AACENC_MEMORY_ERROR:
86  return "Memory allocation error";
87  case AACENC_UNSUPPORTED_PARAMETER:
88  return "Unsupported parameter";
89  case AACENC_INVALID_CONFIG:
90  return "Invalid config";
91  case AACENC_INIT_ERROR:
92  return "Initialization error";
93  case AACENC_INIT_AAC_ERROR:
94  return "AAC library initialization error";
95  case AACENC_INIT_SBR_ERROR:
96  return "SBR library initialization error";
97  case AACENC_INIT_TP_ERROR:
98  return "Transport library initialization error";
99  case AACENC_INIT_META_ERROR:
100  return "Metadata library initialization error";
101  case AACENC_ENCODE_ERROR:
102  return "Encoding error";
103  case AACENC_ENCODE_EOF:
104  return "End of file";
105  default:
106  return "Unknown error";
107  }
108 }
109 
110  static int aac_encode_close(AVCodecContext *avctx)
111 {
112  AACContext *s = avctx->priv_data;
113 
114  if (s->handle)
115  aacEncClose(&s->handle);
116  ff_af_queue_close(&s->afq);
117 
118  return 0;
119 }
120 
121  static av_cold int aac_encode_init(AVCodecContext *avctx)
122 {
123  AACContext *s = avctx->priv_data;
124  int ret = AVERROR(EINVAL);
125  AACENC_InfoStruct info = { 0 };
126  CHANNEL_MODE mode;
127  AACENC_ERROR err;
128  int aot = FF_PROFILE_AAC_LOW + 1;
129  int sce = 0, cpe = 0;
130 
131  if ((err = aacEncOpen(&s->handle, 0, avctx->ch_layout.nb_channels)) != AACENC_OK) {
132  av_log(avctx, AV_LOG_ERROR, "Unable to open the encoder: %s\n",
133  aac_get_error(err));
134  goto error;
135  }
136 
137  if (avctx->profile != FF_PROFILE_UNKNOWN)
138  aot = avctx->profile + 1;
139 
140  if ((err = aacEncoder_SetParam(s->handle, AACENC_AOT, aot)) != AACENC_OK) {
141  av_log(avctx, AV_LOG_ERROR, "Unable to set the AOT %d: %s\n",
142  aot, aac_get_error(err));
143  goto error;
144  }
145 
146  if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_sbr) {
147  if ((err = aacEncoder_SetParam(s->handle, AACENC_SBR_MODE,
148  1)) != AACENC_OK) {
149  av_log(avctx, AV_LOG_ERROR, "Unable to enable SBR for ELD: %s\n",
150  aac_get_error(err));
151  goto error;
152  }
153  }
154 
155  if ((err = aacEncoder_SetParam(s->handle, AACENC_SAMPLERATE,
156  avctx->sample_rate)) != AACENC_OK) {
157  av_log(avctx, AV_LOG_ERROR, "Unable to set the sample rate %d: %s\n",
158  avctx->sample_rate, aac_get_error(err));
159  goto error;
160  }
161 
162  switch (avctx->ch_layout.nb_channels) {
163  case 1: mode = MODE_1; sce = 1; cpe = 0; break;
164  case 2:
165 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
166  // (profile + 1) to map from profile range to AOT range
167  if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_v2) {
168  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
169  128)) != AACENC_OK) {
170  av_log(avctx, AV_LOG_ERROR, "Unable to enable ELDv2: %s\n",
171  aac_get_error(err));
172  goto error;
173  } else {
174  mode = MODE_212;
175  sce = 1;
176  cpe = 0;
177  }
178  } else
179 #endif
180  {
181  mode = MODE_2;
182  sce = 0;
183  cpe = 1;
184  }
185  break;
186  case 3: mode = MODE_1_2; sce = 1; cpe = 1; break;
187  case 4: mode = MODE_1_2_1; sce = 2; cpe = 1; break;
188  case 5: mode = MODE_1_2_2; sce = 1; cpe = 2; break;
189  case 6: mode = MODE_1_2_2_1; sce = 2; cpe = 2; break;
190 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
191  case 7: mode = MODE_6_1; sce = 3; cpe = 2; break;
192 #endif
193 /* The version macro is introduced the same time as the 7.1 support, so this
194  should suffice. */
195 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
196  case 8:
197  sce = 2;
198  cpe = 3;
199  if (!av_channel_layout_compare(&avctx->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_7POINT1)) {
200  mode = MODE_7_1_REAR_SURROUND;
201 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
202  } else if (!av_channel_layout_compare(&avctx->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK)) {
203  mode = MODE_7_1_TOP_FRONT;
204 #endif
205  } else {
206  // MODE_1_2_2_2_1 and MODE_7_1_FRONT_CENTER use the same channel layout
207  mode = MODE_7_1_FRONT_CENTER;
208  }
209  break;
210 #endif
211  default:
212  av_log(avctx, AV_LOG_ERROR,
213  "Unsupported number of channels %d\n", avctx->ch_layout.nb_channels);
214  goto error;
215  }
216 
217  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
218  mode)) != AACENC_OK) {
219  av_log(avctx, AV_LOG_ERROR,
220  "Unable to set channel mode %d: %s\n", mode, aac_get_error(err));
221  goto error;
222  }
223 
224  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELORDER,
225  1)) != AACENC_OK) {
226  av_log(avctx, AV_LOG_ERROR,
227  "Unable to set wav channel order %d: %s\n",
228  mode, aac_get_error(err));
229  goto error;
230  }
231 
232  if (avctx->flags & AV_CODEC_FLAG_QSCALE || s->vbr) {
233  int mode = s->vbr ? s->vbr : avctx->global_quality;
234  if (mode < 1 || mode > 5) {
235  av_log(avctx, AV_LOG_WARNING,
236  "VBR quality %d out of range, should be 1-5\n", mode);
237  mode = av_clip(mode, 1, 5);
238  }
239  av_log(avctx, AV_LOG_WARNING,
240  "Note, the VBR setting is unsupported and only works with "
241  "some parameter combinations\n");
242  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATEMODE,
243  mode)) != AACENC_OK) {
244  av_log(avctx, AV_LOG_ERROR, "Unable to set the VBR bitrate mode %d: %s\n",
245  mode, aac_get_error(err));
246  goto error;
247  }
248  } else {
249  if (avctx->bit_rate <= 0) {
250  if (avctx->profile == FF_PROFILE_AAC_HE_V2) {
251  sce = 1;
252  cpe = 0;
253  }
254  avctx->bit_rate = (96*sce + 128*cpe) * avctx->sample_rate / 44;
255  if (avctx->profile == FF_PROFILE_AAC_HE ||
256  avctx->profile == FF_PROFILE_AAC_HE_V2 ||
257  avctx->profile == FF_PROFILE_MPEG2_AAC_HE ||
258  s->eld_sbr)
259  avctx->bit_rate /= 2;
260  }
261  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATE,
262  avctx->bit_rate)) != AACENC_OK) {
263  av_log(avctx, AV_LOG_ERROR, "Unable to set the bitrate %"PRId64": %s\n",
264  avctx->bit_rate, aac_get_error(err));
265  goto error;
266  }
267  }
268 
269  /* Choose bitstream format - if global header is requested, use
270  * raw access units, otherwise use ADTS. */
271  if ((err = aacEncoder_SetParam(s->handle, AACENC_TRANSMUX,
272  avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? TT_MP4_RAW :
273  s->latm ? TT_MP4_LOAS : TT_MP4_ADTS)) != AACENC_OK) {
274  av_log(avctx, AV_LOG_ERROR, "Unable to set the transmux format: %s\n",
275  aac_get_error(err));
276  goto error;
277  }
278 
279  if (s->latm && s->header_period) {
280  if ((err = aacEncoder_SetParam(s->handle, AACENC_HEADER_PERIOD,
281  s->header_period)) != AACENC_OK) {
282  av_log(avctx, AV_LOG_ERROR, "Unable to set header period: %s\n",
283  aac_get_error(err));
284  goto error;
285  }
286  }
287 
288  /* If no signaling mode is chosen, use explicit hierarchical signaling
289  * if using mp4 mode (raw access units, with global header) and
290  * implicit signaling if using ADTS. */
291  if (s->signaling < 0)
292  s->signaling = avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? 2 : 0;
293 
294  if ((err = aacEncoder_SetParam(s->handle, AACENC_SIGNALING_MODE,
295  s->signaling)) != AACENC_OK) {
296  av_log(avctx, AV_LOG_ERROR, "Unable to set signaling mode %d: %s\n",
297  s->signaling, aac_get_error(err));
298  goto error;
299  }
300 
301  if ((err = aacEncoder_SetParam(s->handle, AACENC_AFTERBURNER,
302  s->afterburner)) != AACENC_OK) {
303  av_log(avctx, AV_LOG_ERROR, "Unable to set afterburner to %d: %s\n",
304  s->afterburner, aac_get_error(err));
305  goto error;
306  }
307 
308  if (avctx->cutoff > 0) {
309  if (avctx->cutoff < (avctx->sample_rate + 255) >> 8 || avctx->cutoff > 20000) {
310  av_log(avctx, AV_LOG_ERROR, "cutoff valid range is %d-20000\n",
311  (avctx->sample_rate + 255) >> 8);
312  goto error;
313  }
314  if ((err = aacEncoder_SetParam(s->handle, AACENC_BANDWIDTH,
315  avctx->cutoff)) != AACENC_OK) {
316  av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwidth to %d: %s\n",
317  avctx->cutoff, aac_get_error(err));
318  goto error;
319  }
320  }
321 
322  if ((err = aacEncEncode(s->handle, NULL, NULL, NULL, NULL)) != AACENC_OK) {
323  av_log(avctx, AV_LOG_ERROR, "Unable to initialize the encoder: %s\n",
324  aac_get_error(err));
325  return AVERROR(EINVAL);
326  }
327 
328  if ((err = aacEncInfo(s->handle, &info)) != AACENC_OK) {
329  av_log(avctx, AV_LOG_ERROR, "Unable to get encoder info: %s\n",
330  aac_get_error(err));
331  goto error;
332  }
333 
334  avctx->frame_size = info.frameLength;
335 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
336  avctx->initial_padding = info.nDelay;
337 #else
338  avctx->initial_padding = info.encoderDelay;
339 #endif
340  ff_af_queue_init(avctx, &s->afq);
341 
342  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
343  avctx->extradata_size = info.confSize;
344  avctx->extradata = av_mallocz(avctx->extradata_size +
345  AV_INPUT_BUFFER_PADDING_SIZE);
346  if (!avctx->extradata) {
347  ret = AVERROR(ENOMEM);
348  goto error;
349  }
350 
351  memcpy(avctx->extradata, info.confBuf, info.confSize);
352  }
353  return 0;
354 error:
355  aac_encode_close(avctx);
356  return ret;
357 }
358 
359  static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
360  const AVFrame *frame, int *got_packet_ptr)
361 {
362  AACContext *s = avctx->priv_data;
363  AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
364  AACENC_InArgs in_args = { 0 };
365  AACENC_OutArgs out_args = { 0 };
366  int in_buffer_identifier = IN_AUDIO_DATA;
367  int in_buffer_size, in_buffer_element_size;
368  int out_buffer_identifier = OUT_BITSTREAM_DATA;
369  int out_buffer_size, out_buffer_element_size;
370  void *in_ptr, *out_ptr;
371  int ret;
372  uint8_t dummy_buf[1];
373  AACENC_ERROR err;
374 
375  /* handle end-of-stream small frame and flushing */
376  if (!frame) {
377  /* Must be a non-null pointer, even if it's a dummy. We could use
378  * the address of anything else on the stack as well. */
379  in_ptr = dummy_buf;
380  in_buffer_size = 0;
381 
382  in_args.numInSamples = -1;
383  } else {
384  in_ptr = frame->data[0];
385  in_buffer_size = 2 * avctx->ch_layout.nb_channels * frame->nb_samples;
386 
387  in_args.numInSamples = avctx->ch_layout.nb_channels * frame->nb_samples;
388 
389  /* add current frame to the queue */
390  if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
391  return ret;
392  }
393 
394  in_buffer_element_size = 2;
395  in_buf.numBufs = 1;
396  in_buf.bufs = &in_ptr;
397  in_buf.bufferIdentifiers = &in_buffer_identifier;
398  in_buf.bufSizes = &in_buffer_size;
399  in_buf.bufElSizes = &in_buffer_element_size;
400 
401  /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
402  ret = ff_alloc_packet(avctx, avpkt, FFMAX(8192, 768 * avctx->ch_layout.nb_channels));
403  if (ret < 0)
404  return ret;
405 
406  out_ptr = avpkt->data;
407  out_buffer_size = avpkt->size;
408  out_buffer_element_size = 1;
409  out_buf.numBufs = 1;
410  out_buf.bufs = &out_ptr;
411  out_buf.bufferIdentifiers = &out_buffer_identifier;
412  out_buf.bufSizes = &out_buffer_size;
413  out_buf.bufElSizes = &out_buffer_element_size;
414 
415  if ((err = aacEncEncode(s->handle, &in_buf, &out_buf, &in_args,
416  &out_args)) != AACENC_OK) {
417  if (!frame && err == AACENC_ENCODE_EOF)
418  return 0;
419  av_log(avctx, AV_LOG_ERROR, "Unable to encode frame: %s\n",
420  aac_get_error(err));
421  return AVERROR(EINVAL);
422  }
423 
424  if (!out_args.numOutBytes)
425  return 0;
426 
427  /* Get the next frame pts & duration */
428  ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
429  &avpkt->duration);
430 
431  avpkt->size = out_args.numOutBytes;
432  *got_packet_ptr = 1;
433  return 0;
434 }
435 
436  static const AVProfile profiles[] = {
437  { FF_PROFILE_AAC_LOW, "LC" },
438  { FF_PROFILE_AAC_HE, "HE-AAC" },
439  { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
440  { FF_PROFILE_AAC_LD, "LD" },
441  { FF_PROFILE_AAC_ELD, "ELD" },
442  { FF_PROFILE_UNKNOWN },
443 };
444 
445  static const FFCodecDefault aac_encode_defaults[] = {
446  { "b", "0" },
447  { NULL }
448 };
449 
450 #if FF_API_OLD_CHANNEL_LAYOUT
451 static const uint64_t aac_channel_layout[] = {
452  AV_CH_LAYOUT_MONO,
453  AV_CH_LAYOUT_STEREO,
454  AV_CH_LAYOUT_SURROUND,
455  AV_CH_LAYOUT_4POINT0,
456  AV_CH_LAYOUT_5POINT0_BACK,
457  AV_CH_LAYOUT_5POINT1_BACK,
458 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
459  AV_CH_LAYOUT_6POINT1_BACK,
460 #endif
461 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
462  AV_CH_LAYOUT_7POINT1_WIDE_BACK,
463  AV_CH_LAYOUT_7POINT1,
464 #endif
465 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
466  AV_CH_LAYOUT_7POINT1_TOP_BACK,
467 #endif
468  0,
469 };
470 #endif /* FF_API_OLD_CHANNEL_LAYOUT */
471 
472  static const AVChannelLayout aac_ch_layouts[16] = {
473  AV_CHANNEL_LAYOUT_MONO,
474  AV_CHANNEL_LAYOUT_STEREO,
475  AV_CHANNEL_LAYOUT_SURROUND,
476  AV_CHANNEL_LAYOUT_4POINT0,
477  AV_CHANNEL_LAYOUT_5POINT0_BACK,
478  AV_CHANNEL_LAYOUT_5POINT1_BACK,
479 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
480  AV_CHANNEL_LAYOUT_6POINT1_BACK,
481 #endif
482 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
483  AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK,
484  AV_CHANNEL_LAYOUT_7POINT1,
485 #endif
486 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
487  AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK,
488 #endif
489  { 0 },
490 };
491 
492  static const int aac_sample_rates[] = {
493  96000, 88200, 64000, 48000, 44100, 32000,
494  24000, 22050, 16000, 12000, 11025, 8000, 0
495 };
496 
497  const FFCodec ff_libfdk_aac_encoder = {
498  .p.name = "libfdk_aac",
499  CODEC_LONG_NAME("Fraunhofer FDK AAC"),
500  .p.type = AVMEDIA_TYPE_AUDIO,
501  .p.id = AV_CODEC_ID_AAC,
502  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
503  AV_CODEC_CAP_SMALL_LAST_FRAME,
504  .caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE,
505  .priv_data_size = sizeof(AACContext),
506  .init = aac_encode_init,
507  FF_CODEC_ENCODE_CB(aac_encode_frame),
508  .close = aac_encode_close,
509  .p.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
510  AV_SAMPLE_FMT_NONE },
511  .p.priv_class = &aac_enc_class,
512  .defaults = aac_encode_defaults,
513  .p.profiles = profiles,
514  .p.supported_samplerates = aac_sample_rates,
515  .p.wrapper_name = "libfdk",
516  CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(aac_channel_layout)
517  .p.ch_layouts = aac_ch_layouts,
518 };
error
static void error(const char *err)
Definition: target_bsf_fuzzer.c:31
AVCodecContext::frame_size
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1062
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
AV_CH_LAYOUT_7POINT1_WIDE_BACK
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK
Definition: channel_layout.h:234
AV_CH_LAYOUT_5POINT0_BACK
#define AV_CH_LAYOUT_5POINT0_BACK
Definition: channel_layout.h:222
av_clip
#define av_clip
Definition: common.h:95
aac_ch_layouts
static const AVChannelLayout aac_ch_layouts[16]
Definition: libfdk-aacenc.c:472
AVERROR
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
opt.h
FF_PROFILE_MPEG2_AAC_HE
#define FF_PROFILE_MPEG2_AAC_HE
Definition: avcodec.h:1578
aac_enc_class
static const AVClass aac_enc_class
Definition: libfdk-aacenc.c:71
ff_libfdk_aac_encoder
const FFCodec ff_libfdk_aac_encoder
Definition: libfdk-aacenc.c:497
ff_af_queue_remove
void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts, int64_t *duration)
Remove frame(s) from the queue.
Definition: audio_frame_queue.c:75
AV_CHANNEL_LAYOUT_STEREO
#define AV_CHANNEL_LAYOUT_STEREO
Definition: channel_layout.h:369
AVCodecContext::sample_rate
int sample_rate
samples per second
Definition: avcodec.h:1034
ff_af_queue_close
void ff_af_queue_close(AudioFrameQueue *afq)
Close AudioFrameQueue.
Definition: audio_frame_queue.c:36
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition: channel_layout.h:210
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:216
ff_af_queue_init
av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
Initialize AudioFrameQueue.
Definition: audio_frame_queue.c:28
aac_encode_frame
static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Definition: libfdk-aacenc.c:359
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
aac_encode_init
static av_cold int aac_encode_init(AVCodecContext *avctx)
Definition: libfdk-aacenc.c:121
AVPacket::data
uint8_t * data
Definition: packet.h:374
AACContext::signaling
int signaling
Definition: libfdk-aacenc.c:45
AVOption
AVOption.
Definition: opt.h:251
encode.h
FF_CODEC_CAP_NOT_INIT_THREADSAFE
#define FF_CODEC_CAP_NOT_INIT_THREADSAFE
The codec is not known to be init-threadsafe (i.e.
Definition: codec_internal.h:34
FFCodec
Definition: codec_internal.h:127
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:392
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:311
AV_CODEC_FLAG_GLOBAL_HEADER
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:317
AVProfile
AVProfile.
Definition: codec.h:176
FFCodecDefault
Definition: codec_internal.h:97
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:131
AVCodecContext::ch_layout
AVChannelLayout ch_layout
Audio channel layout.
Definition: avcodec.h:2054
aac_get_error
static const char * aac_get_error(AACENC_ERROR err)
Definition: libfdk-aacenc.c:78
audio_frame_queue.h
AVCodecContext::initial_padding
int initial_padding
Audio only.
Definition: avcodec.h:1741
AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK
#define AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK
Definition: channel_layout.h:393
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:506
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:315
ff_af_queue_add
int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
Add a frame to the queue.
Definition: audio_frame_queue.c:44
AV_CH_LAYOUT_STEREO
#define AV_CH_LAYOUT_STEREO
Definition: channel_layout.h:211
AV_CHANNEL_LAYOUT_SURROUND
#define AV_CHANNEL_LAYOUT_SURROUND
Definition: channel_layout.h:372
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
FF_PROFILE_AAC_HE_V2
#define FF_PROFILE_AAC_HE_V2
Definition: avcodec.h:1574
AV_CHANNEL_LAYOUT_4POINT0
#define AV_CHANNEL_LAYOUT_4POINT0
Definition: channel_layout.h:374
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:528
AV_CHANNEL_LAYOUT_7POINT1
#define AV_CHANNEL_LAYOUT_7POINT1
Definition: channel_layout.h:390
s
#define s(width, name)
Definition: cbs_vp9.c:256
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:492
AV_OPT_FLAG_ENCODING_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:281
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
info
MIPS optimizations info
Definition: mips.txt:2
AV_CHANNEL_LAYOUT_5POINT0_BACK
#define AV_CHANNEL_LAYOUT_5POINT0_BACK
Definition: channel_layout.h:380
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts_bsf.c:365
AACContext::eld_v2
int eld_v2
Definition: libfdk-aacenc.c:44
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1566
AudioFrameQueue
Definition: audio_frame_queue.h:32
AACContext::vbr
int vbr
Definition: libfdk-aacenc.c:48
AACContext::header_period
int header_period
Definition: libfdk-aacenc.c:47
AACContext::latm
int latm
Definition: libfdk-aacenc.c:46
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:272
AV_OPT_FLAG_AUDIO_PARAM
#define AV_OPT_FLAG_AUDIO_PARAM
Definition: opt.h:283
if
if(ret)
Definition: filter_design.txt:179
AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK
#define AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK
Definition: channel_layout.h:392
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:476
FF_PROFILE_AAC_LD
#define FF_PROFILE_AAC_LD
Definition: avcodec.h:1575
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
profiles.h
aac_encode_close
static int aac_encode_close(AVCodecContext *avctx)
Definition: libfdk-aacenc.c:110
AACContext::afterburner
int afterburner
Definition: libfdk-aacenc.c:42
FF_PROFILE_AAC_ELD
#define FF_PROFILE_AAC_ELD
Definition: avcodec.h:1576
aac_encode_defaults
static const FFCodecDefault aac_encode_defaults[]
Definition: libfdk-aacenc.c:445
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition: codec_id.h:440
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
AVPacket::size
int size
Definition: packet.h:375
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition: channel_layout.h:301
codec_internal.h
FF_PROFILE_AAC_LOW
#define FF_PROFILE_AAC_LOW
Definition: avcodec.h:1570
AACContext::afq
AudioFrameQueue afq
Definition: libfdk-aacenc.c:50
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition: samplefmt.h:56
AV_CH_LAYOUT_5POINT1_BACK
#define AV_CH_LAYOUT_5POINT1_BACK
Definition: channel_layout.h:223
av_channel_layout_compare
int av_channel_layout_compare(const AVChannelLayout *chl, const AVChannelLayout *chl1)
Check whether two channel layouts are semantically the same, i.e.
Definition: channel_layout.c:932
AV_CHANNEL_LAYOUT_6POINT1_BACK
#define AV_CHANNEL_LAYOUT_6POINT1_BACK
Definition: channel_layout.h:386
AACContext::eld_sbr
int eld_sbr
Definition: libfdk-aacenc.c:43
CODEC_OLD_CHANNEL_LAYOUTS_ARRAY
#define CODEC_OLD_CHANNEL_LAYOUTS_ARRAY(array)
Definition: codec_internal.h:303
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:367
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:527
common.h
AVCodecContext::cutoff
int cutoff
Audio cutoff bandwidth (0 means "automatic")
Definition: avcodec.h:1090
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:55
AV_CH_LAYOUT_7POINT1
#define AV_CH_LAYOUT_7POINT1
Definition: channel_layout.h:232
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:58
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:254
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:191
avcodec.h
FF_PROFILE_AAC_HE
#define FF_PROFILE_AAC_HE
Definition: avcodec.h:1573
ret
ret
Definition: filter_design.txt:187
AVClass::class_name
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:71
frame
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
Definition: filter_design.txt:264
AV_CH_LAYOUT_SURROUND
#define AV_CH_LAYOUT_SURROUND
Definition: channel_layout.h:214
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
AVCodecContext
main external API structure.
Definition: avcodec.h:426
channel_layout.h
mode
mode
Definition: ebur128.h:83
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVCodecContext::profile
int profile
profile
Definition: avcodec.h:1565
profiles
static const AVProfile profiles[]
Definition: libfdk-aacenc.c:436
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:76
AV_CHANNEL_LAYOUT_MONO
#define AV_CHANNEL_LAYOUT_MONO
Definition: channel_layout.h:368
FF_AAC_PROFILE_OPTS
#define FF_AAC_PROFILE_OPTS
Definition: profiles.h:28
AVPacket
This structure stores compressed data.
Definition: packet.h:351
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:453
aac_sample_rates
static const int aac_sample_rates[]
Definition: libfdk-aacenc.c:492
AV_CH_LAYOUT_4POINT0
#define AV_CH_LAYOUT_4POINT0
Definition: channel_layout.h:216
AACContext
main AAC context
Definition: aac.h:296
AV_CHANNEL_LAYOUT_5POINT1_BACK
#define AV_CHANNEL_LAYOUT_5POINT1_BACK
Definition: channel_layout.h:381
AV_CH_LAYOUT_6POINT1_BACK
#define AV_CH_LAYOUT_6POINT1_BACK
Definition: channel_layout.h:228
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AV_CH_LAYOUT_7POINT1_TOP_BACK
#define AV_CH_LAYOUT_7POINT1_TOP_BACK
Definition: channel_layout.h:235
AACContext::handle
HANDLE_AACENCODER handle
Definition: libfdk-aacenc.c:41
AV_CODEC_CAP_SMALL_LAST_FRAME
#define AV_CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
Definition: codec.h:81
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
ff_alloc_packet
int ff_alloc_packet(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and allocate data.
Definition: encode.c:35
aac_enc_options
static const AVOption aac_enc_options[]
Definition: libfdk-aacenc.c:53
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