FFmpeg  4.3.9
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 
23 #include "libavutil/common.h"
24 #include "libavutil/opt.h"
25 #include "avcodec.h"
26 #include "audio_frame_queue.h"
27 #include "internal.h"
28 #include "profiles.h"
29 
30 #ifdef AACENCODER_LIB_VL0
31 #define FDKENC_VER_AT_LEAST(vl0, vl1) \
32  ((AACENCODER_LIB_VL0 > vl0) || \
33  (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1))
34 #else
35 #define FDKENC_VER_AT_LEAST(vl0, vl1) 0
36 #endif
37 
38 typedef struct AACContext {
39  const AVClass *class;
40  HANDLE_AACENCODER handle;
42  int eld_sbr;
43  int eld_v2;
44  int signaling;
45  int latm;
47  int vbr;
48 
50 } AACContext;
51 
52 static const AVOption aac_enc_options[] = {
53  { "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 },
54  { "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 },
55 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
56  { "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 },
57 #endif
58  { "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" },
59  { "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" },
60  { "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" },
61  { "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" },
62  { "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" },
63  { "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 },
64  { "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 },
65  { "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  { NULL }
68 };
69 
70 static const AVClass aac_enc_class = {
71  .class_name = "libfdk_aac",
72  .item_name = av_default_item_name,
73  .option = aac_enc_options,
74  .version = LIBAVUTIL_VERSION_INT,
75 };
76 
77 static const char *aac_get_error(AACENC_ERROR err)
78 {
79  switch (err) {
80  case AACENC_OK:
81  return "No error";
82  case AACENC_INVALID_HANDLE:
83  return "Invalid handle";
84  case AACENC_MEMORY_ERROR:
85  return "Memory allocation error";
86  case AACENC_UNSUPPORTED_PARAMETER:
87  return "Unsupported parameter";
88  case AACENC_INVALID_CONFIG:
89  return "Invalid config";
90  case AACENC_INIT_ERROR:
91  return "Initialization error";
92  case AACENC_INIT_AAC_ERROR:
93  return "AAC library initialization error";
94  case AACENC_INIT_SBR_ERROR:
95  return "SBR library initialization error";
96  case AACENC_INIT_TP_ERROR:
97  return "Transport library initialization error";
98  case AACENC_INIT_META_ERROR:
99  return "Metadata library initialization error";
100  case AACENC_ENCODE_ERROR:
101  return "Encoding error";
102  case AACENC_ENCODE_EOF:
103  return "End of file";
104  default:
105  return "Unknown error";
106  }
107 }
108 
110 {
111  AACContext *s = avctx->priv_data;
112 
113  if (s->handle)
114  aacEncClose(&s->handle);
115  av_freep(&avctx->extradata);
116  ff_af_queue_close(&s->afq);
117 
118  return 0;
119 }
120 
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->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->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 /* The version macro is introduced the same time as the 7.1 support, so this
191  should suffice. */
192 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
193  case 8:
194  sce = 2;
195  cpe = 3;
196  if (avctx->channel_layout == AV_CH_LAYOUT_7POINT1) {
197  mode = MODE_7_1_REAR_SURROUND;
198  } else {
199  // MODE_1_2_2_2_1 and MODE_7_1_FRONT_CENTER use the same channel layout
200  mode = MODE_7_1_FRONT_CENTER;
201  }
202  break;
203 #endif
204  default:
205  av_log(avctx, AV_LOG_ERROR,
206  "Unsupported number of channels %d\n", avctx->channels);
207  goto error;
208  }
209 
210  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
211  mode)) != AACENC_OK) {
212  av_log(avctx, AV_LOG_ERROR,
213  "Unable to set channel mode %d: %s\n", mode, aac_get_error(err));
214  goto error;
215  }
216 
217  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELORDER,
218  1)) != AACENC_OK) {
219  av_log(avctx, AV_LOG_ERROR,
220  "Unable to set wav channel order %d: %s\n",
221  mode, aac_get_error(err));
222  goto error;
223  }
224 
225  if (avctx->flags & AV_CODEC_FLAG_QSCALE || s->vbr) {
226  int mode = s->vbr ? s->vbr : avctx->global_quality;
227  if (mode < 1 || mode > 5) {
228  av_log(avctx, AV_LOG_WARNING,
229  "VBR quality %d out of range, should be 1-5\n", mode);
230  mode = av_clip(mode, 1, 5);
231  }
232  av_log(avctx, AV_LOG_WARNING,
233  "Note, the VBR setting is unsupported and only works with "
234  "some parameter combinations\n");
235  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATEMODE,
236  mode)) != AACENC_OK) {
237  av_log(avctx, AV_LOG_ERROR, "Unable to set the VBR bitrate mode %d: %s\n",
238  mode, aac_get_error(err));
239  goto error;
240  }
241  } else {
242  if (avctx->bit_rate <= 0) {
243  if (avctx->profile == FF_PROFILE_AAC_HE_V2) {
244  sce = 1;
245  cpe = 0;
246  }
247  avctx->bit_rate = (96*sce + 128*cpe) * avctx->sample_rate / 44;
248  if (avctx->profile == FF_PROFILE_AAC_HE ||
249  avctx->profile == FF_PROFILE_AAC_HE_V2 ||
250  avctx->profile == FF_PROFILE_MPEG2_AAC_HE ||
251  s->eld_sbr)
252  avctx->bit_rate /= 2;
253  }
254  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATE,
255  avctx->bit_rate)) != AACENC_OK) {
256  av_log(avctx, AV_LOG_ERROR, "Unable to set the bitrate %"PRId64": %s\n",
257  avctx->bit_rate, aac_get_error(err));
258  goto error;
259  }
260  }
261 
262  /* Choose bitstream format - if global header is requested, use
263  * raw access units, otherwise use ADTS. */
264  if ((err = aacEncoder_SetParam(s->handle, AACENC_TRANSMUX,
265  avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? TT_MP4_RAW :
266  s->latm ? TT_MP4_LOAS : TT_MP4_ADTS)) != AACENC_OK) {
267  av_log(avctx, AV_LOG_ERROR, "Unable to set the transmux format: %s\n",
268  aac_get_error(err));
269  goto error;
270  }
271 
272  if (s->latm && s->header_period) {
273  if ((err = aacEncoder_SetParam(s->handle, AACENC_HEADER_PERIOD,
274  s->header_period)) != AACENC_OK) {
275  av_log(avctx, AV_LOG_ERROR, "Unable to set header period: %s\n",
276  aac_get_error(err));
277  goto error;
278  }
279  }
280 
281  /* If no signaling mode is chosen, use explicit hierarchical signaling
282  * if using mp4 mode (raw access units, with global header) and
283  * implicit signaling if using ADTS. */
284  if (s->signaling < 0)
285  s->signaling = avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? 2 : 0;
286 
287  if ((err = aacEncoder_SetParam(s->handle, AACENC_SIGNALING_MODE,
288  s->signaling)) != AACENC_OK) {
289  av_log(avctx, AV_LOG_ERROR, "Unable to set signaling mode %d: %s\n",
290  s->signaling, aac_get_error(err));
291  goto error;
292  }
293 
294  if ((err = aacEncoder_SetParam(s->handle, AACENC_AFTERBURNER,
295  s->afterburner)) != AACENC_OK) {
296  av_log(avctx, AV_LOG_ERROR, "Unable to set afterburner to %d: %s\n",
297  s->afterburner, aac_get_error(err));
298  goto error;
299  }
300 
301  if (avctx->cutoff > 0) {
302  if (avctx->cutoff < (avctx->sample_rate + 255) >> 8 || avctx->cutoff > 20000) {
303  av_log(avctx, AV_LOG_ERROR, "cutoff valid range is %d-20000\n",
304  (avctx->sample_rate + 255) >> 8);
305  goto error;
306  }
307  if ((err = aacEncoder_SetParam(s->handle, AACENC_BANDWIDTH,
308  avctx->cutoff)) != AACENC_OK) {
309  av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwidth to %d: %s\n",
310  avctx->cutoff, aac_get_error(err));
311  goto error;
312  }
313  }
314 
315  if ((err = aacEncEncode(s->handle, NULL, NULL, NULL, NULL)) != AACENC_OK) {
316  av_log(avctx, AV_LOG_ERROR, "Unable to initialize the encoder: %s\n",
317  aac_get_error(err));
318  return AVERROR(EINVAL);
319  }
320 
321  if ((err = aacEncInfo(s->handle, &info)) != AACENC_OK) {
322  av_log(avctx, AV_LOG_ERROR, "Unable to get encoder info: %s\n",
323  aac_get_error(err));
324  goto error;
325  }
326 
327  avctx->frame_size = info.frameLength;
328 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
329  avctx->initial_padding = info.nDelay;
330 #else
331  avctx->initial_padding = info.encoderDelay;
332 #endif
333  ff_af_queue_init(avctx, &s->afq);
334 
335  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
336  avctx->extradata_size = info.confSize;
337  avctx->extradata = av_mallocz(avctx->extradata_size +
339  if (!avctx->extradata) {
340  ret = AVERROR(ENOMEM);
341  goto error;
342  }
343 
344  memcpy(avctx->extradata, info.confBuf, info.confSize);
345  }
346  return 0;
347 error:
348  aac_encode_close(avctx);
349  return ret;
350 }
351 
353  const AVFrame *frame, int *got_packet_ptr)
354 {
355  AACContext *s = avctx->priv_data;
356  AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
357  AACENC_InArgs in_args = { 0 };
358  AACENC_OutArgs out_args = { 0 };
359  int in_buffer_identifier = IN_AUDIO_DATA;
360  int in_buffer_size, in_buffer_element_size;
361  int out_buffer_identifier = OUT_BITSTREAM_DATA;
362  int out_buffer_size, out_buffer_element_size;
363  void *in_ptr, *out_ptr;
364  int ret;
365  uint8_t dummy_buf[1];
366  AACENC_ERROR err;
367 
368  /* handle end-of-stream small frame and flushing */
369  if (!frame) {
370  /* Must be a non-null pointer, even if it's a dummy. We could use
371  * the address of anything else on the stack as well. */
372  in_ptr = dummy_buf;
373  in_buffer_size = 0;
374 
375  in_args.numInSamples = -1;
376  } else {
377  in_ptr = frame->data[0];
378  in_buffer_size = 2 * avctx->channels * frame->nb_samples;
379 
380  in_args.numInSamples = avctx->channels * frame->nb_samples;
381 
382  /* add current frame to the queue */
383  if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
384  return ret;
385  }
386 
387  in_buffer_element_size = 2;
388  in_buf.numBufs = 1;
389  in_buf.bufs = &in_ptr;
390  in_buf.bufferIdentifiers = &in_buffer_identifier;
391  in_buf.bufSizes = &in_buffer_size;
392  in_buf.bufElSizes = &in_buffer_element_size;
393 
394  /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
395  if ((ret = ff_alloc_packet2(avctx, avpkt, FFMAX(8192, 768 * avctx->channels), 0)) < 0)
396  return ret;
397 
398  out_ptr = avpkt->data;
399  out_buffer_size = avpkt->size;
400  out_buffer_element_size = 1;
401  out_buf.numBufs = 1;
402  out_buf.bufs = &out_ptr;
403  out_buf.bufferIdentifiers = &out_buffer_identifier;
404  out_buf.bufSizes = &out_buffer_size;
405  out_buf.bufElSizes = &out_buffer_element_size;
406 
407  if ((err = aacEncEncode(s->handle, &in_buf, &out_buf, &in_args,
408  &out_args)) != AACENC_OK) {
409  if (!frame && err == AACENC_ENCODE_EOF)
410  return 0;
411  av_log(avctx, AV_LOG_ERROR, "Unable to encode frame: %s\n",
412  aac_get_error(err));
413  return AVERROR(EINVAL);
414  }
415 
416  if (!out_args.numOutBytes)
417  return 0;
418 
419  /* Get the next frame pts & duration */
420  ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
421  &avpkt->duration);
422 
423  avpkt->size = out_args.numOutBytes;
424  *got_packet_ptr = 1;
425  return 0;
426 }
427 
428 static const AVProfile profiles[] = {
429  { FF_PROFILE_AAC_LOW, "LC" },
430  { FF_PROFILE_AAC_HE, "HE-AAC" },
431  { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
432  { FF_PROFILE_AAC_LD, "LD" },
433  { FF_PROFILE_AAC_ELD, "ELD" },
434  { FF_PROFILE_UNKNOWN },
435 };
436 
438  { "b", "0" },
439  { NULL }
440 };
441 
442 static const uint64_t aac_channel_layout[] = {
449 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
452 #endif
453  0,
454 };
455 
456 static const int aac_sample_rates[] = {
457  96000, 88200, 64000, 48000, 44100, 32000,
458  24000, 22050, 16000, 12000, 11025, 8000, 0
459 };
460 
462  .name = "libfdk_aac",
463  .long_name = NULL_IF_CONFIG_SMALL("Fraunhofer FDK AAC"),
464  .type = AVMEDIA_TYPE_AUDIO,
465  .id = AV_CODEC_ID_AAC,
466  .priv_data_size = sizeof(AACContext),
468  .encode2 = aac_encode_frame,
469  .close = aac_encode_close,
471  .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
473  .priv_class = &aac_enc_class,
474  .defaults = aac_encode_defaults,
475  .profiles = profiles,
476  .supported_samplerates = aac_sample_rates,
477  .channel_layouts = aac_channel_layout,
478  .wrapper_name = "libfdk",
479 };
void ff_af_queue_remove(AudioFrameQueue *afq, int nb_samples, int64_t *pts, int64_t *duration)
Remove frame(s) from the queue.
#define NULL
Definition: coverity.c:32
#define AV_CH_LAYOUT_7POINT1
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
HANDLE_AACENCODER handle
Definition: libfdk-aacenc.c:40
AVOption.
Definition: opt.h:246
AVCodecContext * avctx
Definition: aac.h:295
static const int aac_sample_rates[]
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:576
#define AV_CH_LAYOUT_SURROUND
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define FF_PROFILE_MPEG2_AAC_HE
Definition: avcodec.h:1876
#define AV_OPT_FLAG_AUDIO_PARAM
Definition: opt.h:278
int size
Definition: packet.h:356
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
#define AV_CH_LAYOUT_4POINT0
#define AV_CH_LAYOUT_STEREO
static void error(const char *err)
#define FF_PROFILE_AAC_HE_V2
Definition: avcodec.h:1872
int profile
profile
Definition: avcodec.h:1863
AVCodec.
Definition: codec.h:190
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:75
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
uint8_t
#define av_cold
Definition: attributes.h:88
static int aac_encode_close(AVCodecContext *avctx)
AVOptions.
AVCodec ff_libfdk_aac_encoder
AudioFrameQueue afq
Definition: libfdk-aacenc.c:49
av_cold void ff_af_queue_init(AVCodecContext *avctx, AudioFrameQueue *afq)
Initialize AudioFrameQueue.
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:373
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:627
static const AVClass aac_enc_class
Definition: libfdk-aacenc.c:70
uint8_t * data
Definition: packet.h:355
#define FF_PROFILE_AAC_LD
Definition: avcodec.h:1873
#define av_log(a,...)
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:276
static av_cold int aac_encode_init(AVCodecContext *avctx)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AVERROR(e)
Definition: error.h:43
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
#define FF_AAC_PROFILE_OPTS
Definition: profiles.h:28
int initial_padding
Audio only.
Definition: avcodec.h:2064
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:606
int header_period
Definition: libfdk-aacenc.c:46
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:237
const char * name
Name of the codec implementation.
Definition: codec.h:197
int ff_af_queue_add(AudioFrameQueue *afq, const AVFrame *f)
Add a frame to the queue.
#define FFMAX(a, b)
Definition: common.h:94
#define FF_PROFILE_AAC_ELD
Definition: avcodec.h:1874
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1237
audio channel layout utility functions
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:275
#define AV_CODEC_CAP_SMALL_LAST_FRAME
Codec can be fed a final frame with a smaller size.
Definition: codec.h:80
#define FF_PROFILE_AAC_LOW
Definition: avcodec.h:1868
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1864
#define s(width, name)
Definition: cbs_vp9.c:257
#define AV_CH_LAYOUT_5POINT1_BACK
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1206
Libavcodec external API header.
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
int sample_rate
samples per second
Definition: avcodec.h:1186
main external API structure.
Definition: avcodec.h:526
static const AVCodecDefault aac_encode_defaults[]
int extradata_size
Definition: avcodec.h:628
Describe the class of an AVClass context structure.
Definition: log.h:67
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK
static const AVProfile profiles[]
#define AV_CH_LAYOUT_5POINT0_BACK
main AAC context
Definition: aac.h:293
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:592
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:329
AVFrame * frame
Definition: aac.h:296
common internal api header.
common internal and external API header
if(ret< 0)
Definition: vf_mcdeint.c:279
signed 16 bits
Definition: samplefmt.h:61
AVProfile.
Definition: codec.h:176
static const AVOption aac_enc_options[]
Definition: libfdk-aacenc.c:52
static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:215
void * priv_data
Definition: avcodec.h:553
int cutoff
Audio cutoff bandwidth (0 means "automatic")
Definition: avcodec.h:1230
int channels
number of audio channels
Definition: avcodec.h:1187
static const uint64_t aac_channel_layout[]
void ff_af_queue_close(AudioFrameQueue *afq)
Close AudioFrameQueue.
#define FF_PROFILE_AAC_HE
Definition: avcodec.h:1871
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:731
#define av_freep(p)
#define AV_CH_LAYOUT_MONO
This structure stores compressed data.
Definition: packet.h:332
mode
Use these values in ebur128_init (or&#39;ed).
Definition: ebur128.h:83
int nb_samples
number of audio samples (per channel) described by this frame
Definition: frame.h:366
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:348
static const char * aac_get_error(AACENC_ERROR err)
Definition: libfdk-aacenc.c:77