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 
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  ff_af_queue_close(&s->afq);
116 
117  return 0;
118 }
119 
121 {
122  AACContext *s = avctx->priv_data;
123  int ret = AVERROR(EINVAL);
124  AACENC_InfoStruct info = { 0 };
125  CHANNEL_MODE mode;
126  AACENC_ERROR err;
127  int aot = FF_PROFILE_AAC_LOW + 1;
128  int sce = 0, cpe = 0;
129 
130  if ((err = aacEncOpen(&s->handle, 0, avctx->channels)) != AACENC_OK) {
131  av_log(avctx, AV_LOG_ERROR, "Unable to open the encoder: %s\n",
132  aac_get_error(err));
133  goto error;
134  }
135 
136  if (avctx->profile != FF_PROFILE_UNKNOWN)
137  aot = avctx->profile + 1;
138 
139  if ((err = aacEncoder_SetParam(s->handle, AACENC_AOT, aot)) != AACENC_OK) {
140  av_log(avctx, AV_LOG_ERROR, "Unable to set the AOT %d: %s\n",
141  aot, aac_get_error(err));
142  goto error;
143  }
144 
145  if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_sbr) {
146  if ((err = aacEncoder_SetParam(s->handle, AACENC_SBR_MODE,
147  1)) != AACENC_OK) {
148  av_log(avctx, AV_LOG_ERROR, "Unable to enable SBR for ELD: %s\n",
149  aac_get_error(err));
150  goto error;
151  }
152  }
153 
154  if ((err = aacEncoder_SetParam(s->handle, AACENC_SAMPLERATE,
155  avctx->sample_rate)) != AACENC_OK) {
156  av_log(avctx, AV_LOG_ERROR, "Unable to set the sample rate %d: %s\n",
157  avctx->sample_rate, aac_get_error(err));
158  goto error;
159  }
160 
161  switch (avctx->channels) {
162  case 1: mode = MODE_1; sce = 1; cpe = 0; break;
163  case 2:
164 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
165  // (profile + 1) to map from profile range to AOT range
166  if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_v2) {
167  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
168  128)) != AACENC_OK) {
169  av_log(avctx, AV_LOG_ERROR, "Unable to enable ELDv2: %s\n",
170  aac_get_error(err));
171  goto error;
172  } else {
173  mode = MODE_212;
174  sce = 1;
175  cpe = 0;
176  }
177  } else
178 #endif
179  {
180  mode = MODE_2;
181  sce = 0;
182  cpe = 1;
183  }
184  break;
185  case 3: mode = MODE_1_2; sce = 1; cpe = 1; break;
186  case 4: mode = MODE_1_2_1; sce = 2; cpe = 1; break;
187  case 5: mode = MODE_1_2_2; sce = 1; cpe = 2; break;
188  case 6: mode = MODE_1_2_2_1; sce = 2; cpe = 2; break;
189 /* The version macro is introduced the same time as the 7.1 support, so this
190  should suffice. */
191 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
192  case 8:
193  sce = 2;
194  cpe = 3;
195  if (avctx->channel_layout == AV_CH_LAYOUT_7POINT1) {
196  mode = MODE_7_1_REAR_SURROUND;
197  } else {
198  // MODE_1_2_2_2_1 and MODE_7_1_FRONT_CENTER use the same channel layout
199  mode = MODE_7_1_FRONT_CENTER;
200  }
201  break;
202 #endif
203  default:
204  av_log(avctx, AV_LOG_ERROR,
205  "Unsupported number of channels %d\n", avctx->channels);
206  goto error;
207  }
208 
209  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
210  mode)) != AACENC_OK) {
211  av_log(avctx, AV_LOG_ERROR,
212  "Unable to set channel mode %d: %s\n", mode, aac_get_error(err));
213  goto error;
214  }
215 
216  if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELORDER,
217  1)) != AACENC_OK) {
218  av_log(avctx, AV_LOG_ERROR,
219  "Unable to set wav channel order %d: %s\n",
220  mode, aac_get_error(err));
221  goto error;
222  }
223 
224  if (avctx->flags & AV_CODEC_FLAG_QSCALE || s->vbr) {
225  int mode = s->vbr ? s->vbr : avctx->global_quality;
226  if (mode < 1 || mode > 5) {
227  av_log(avctx, AV_LOG_WARNING,
228  "VBR quality %d out of range, should be 1-5\n", mode);
229  mode = av_clip(mode, 1, 5);
230  }
231  av_log(avctx, AV_LOG_WARNING,
232  "Note, the VBR setting is unsupported and only works with "
233  "some parameter combinations\n");
234  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATEMODE,
235  mode)) != AACENC_OK) {
236  av_log(avctx, AV_LOG_ERROR, "Unable to set the VBR bitrate mode %d: %s\n",
237  mode, aac_get_error(err));
238  goto error;
239  }
240  } else {
241  if (avctx->bit_rate <= 0) {
242  if (avctx->profile == FF_PROFILE_AAC_HE_V2) {
243  sce = 1;
244  cpe = 0;
245  }
246  avctx->bit_rate = (96*sce + 128*cpe) * avctx->sample_rate / 44;
247  if (avctx->profile == FF_PROFILE_AAC_HE ||
248  avctx->profile == FF_PROFILE_AAC_HE_V2 ||
249  avctx->profile == FF_PROFILE_MPEG2_AAC_HE ||
250  s->eld_sbr)
251  avctx->bit_rate /= 2;
252  }
253  if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATE,
254  avctx->bit_rate)) != AACENC_OK) {
255  av_log(avctx, AV_LOG_ERROR, "Unable to set the bitrate %"PRId64": %s\n",
256  avctx->bit_rate, aac_get_error(err));
257  goto error;
258  }
259  }
260 
261  /* Choose bitstream format - if global header is requested, use
262  * raw access units, otherwise use ADTS. */
263  if ((err = aacEncoder_SetParam(s->handle, AACENC_TRANSMUX,
264  avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? TT_MP4_RAW :
265  s->latm ? TT_MP4_LOAS : TT_MP4_ADTS)) != AACENC_OK) {
266  av_log(avctx, AV_LOG_ERROR, "Unable to set the transmux format: %s\n",
267  aac_get_error(err));
268  goto error;
269  }
270 
271  if (s->latm && s->header_period) {
272  if ((err = aacEncoder_SetParam(s->handle, AACENC_HEADER_PERIOD,
273  s->header_period)) != AACENC_OK) {
274  av_log(avctx, AV_LOG_ERROR, "Unable to set header period: %s\n",
275  aac_get_error(err));
276  goto error;
277  }
278  }
279 
280  /* If no signaling mode is chosen, use explicit hierarchical signaling
281  * if using mp4 mode (raw access units, with global header) and
282  * implicit signaling if using ADTS. */
283  if (s->signaling < 0)
284  s->signaling = avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? 2 : 0;
285 
286  if ((err = aacEncoder_SetParam(s->handle, AACENC_SIGNALING_MODE,
287  s->signaling)) != AACENC_OK) {
288  av_log(avctx, AV_LOG_ERROR, "Unable to set signaling mode %d: %s\n",
289  s->signaling, aac_get_error(err));
290  goto error;
291  }
292 
293  if ((err = aacEncoder_SetParam(s->handle, AACENC_AFTERBURNER,
294  s->afterburner)) != AACENC_OK) {
295  av_log(avctx, AV_LOG_ERROR, "Unable to set afterburner to %d: %s\n",
296  s->afterburner, aac_get_error(err));
297  goto error;
298  }
299 
300  if (avctx->cutoff > 0) {
301  if (avctx->cutoff < (avctx->sample_rate + 255) >> 8 || avctx->cutoff > 20000) {
302  av_log(avctx, AV_LOG_ERROR, "cutoff valid range is %d-20000\n",
303  (avctx->sample_rate + 255) >> 8);
304  goto error;
305  }
306  if ((err = aacEncoder_SetParam(s->handle, AACENC_BANDWIDTH,
307  avctx->cutoff)) != AACENC_OK) {
308  av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwidth to %d: %s\n",
309  avctx->cutoff, aac_get_error(err));
310  goto error;
311  }
312  }
313 
314  if ((err = aacEncEncode(s->handle, NULL, NULL, NULL, NULL)) != AACENC_OK) {
315  av_log(avctx, AV_LOG_ERROR, "Unable to initialize the encoder: %s\n",
316  aac_get_error(err));
317  return AVERROR(EINVAL);
318  }
319 
320  if ((err = aacEncInfo(s->handle, &info)) != AACENC_OK) {
321  av_log(avctx, AV_LOG_ERROR, "Unable to get encoder info: %s\n",
322  aac_get_error(err));
323  goto error;
324  }
325 
326  avctx->frame_size = info.frameLength;
327 #if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
328  avctx->initial_padding = info.nDelay;
329 #else
330  avctx->initial_padding = info.encoderDelay;
331 #endif
332  ff_af_queue_init(avctx, &s->afq);
333 
334  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
335  avctx->extradata_size = info.confSize;
336  avctx->extradata = av_mallocz(avctx->extradata_size +
338  if (!avctx->extradata) {
339  ret = AVERROR(ENOMEM);
340  goto error;
341  }
342 
343  memcpy(avctx->extradata, info.confBuf, info.confSize);
344  }
345  return 0;
346 error:
347  aac_encode_close(avctx);
348  return ret;
349 }
350 
351 static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
352  const AVFrame *frame, int *got_packet_ptr)
353 {
354  AACContext *s = avctx->priv_data;
355  AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
356  AACENC_InArgs in_args = { 0 };
357  AACENC_OutArgs out_args = { 0 };
358  int in_buffer_identifier = IN_AUDIO_DATA;
359  int in_buffer_size, in_buffer_element_size;
360  int out_buffer_identifier = OUT_BITSTREAM_DATA;
361  int out_buffer_size, out_buffer_element_size;
362  void *in_ptr, *out_ptr;
363  int ret;
364  uint8_t dummy_buf[1];
365  AACENC_ERROR err;
366 
367  /* handle end-of-stream small frame and flushing */
368  if (!frame) {
369  /* Must be a non-null pointer, even if it's a dummy. We could use
370  * the address of anything else on the stack as well. */
371  in_ptr = dummy_buf;
372  in_buffer_size = 0;
373 
374  in_args.numInSamples = -1;
375  } else {
376  in_ptr = frame->data[0];
377  in_buffer_size = 2 * avctx->channels * frame->nb_samples;
378 
379  in_args.numInSamples = avctx->channels * frame->nb_samples;
380 
381  /* add current frame to the queue */
382  if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
383  return ret;
384  }
385 
386  in_buffer_element_size = 2;
387  in_buf.numBufs = 1;
388  in_buf.bufs = &in_ptr;
389  in_buf.bufferIdentifiers = &in_buffer_identifier;
390  in_buf.bufSizes = &in_buffer_size;
391  in_buf.bufElSizes = &in_buffer_element_size;
392 
393  /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
394  if ((ret = ff_alloc_packet2(avctx, avpkt, FFMAX(8192, 768 * avctx->channels), 0)) < 0)
395  return ret;
396 
397  out_ptr = avpkt->data;
398  out_buffer_size = avpkt->size;
399  out_buffer_element_size = 1;
400  out_buf.numBufs = 1;
401  out_buf.bufs = &out_ptr;
402  out_buf.bufferIdentifiers = &out_buffer_identifier;
403  out_buf.bufSizes = &out_buffer_size;
404  out_buf.bufElSizes = &out_buffer_element_size;
405 
406  if ((err = aacEncEncode(s->handle, &in_buf, &out_buf, &in_args,
407  &out_args)) != AACENC_OK) {
408  if (!frame && err == AACENC_ENCODE_EOF)
409  return 0;
410  av_log(avctx, AV_LOG_ERROR, "Unable to encode frame: %s\n",
411  aac_get_error(err));
412  return AVERROR(EINVAL);
413  }
414 
415  if (!out_args.numOutBytes)
416  return 0;
417 
418  /* Get the next frame pts & duration */
419  ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
420  &avpkt->duration);
421 
422  avpkt->size = out_args.numOutBytes;
423  *got_packet_ptr = 1;
424  return 0;
425 }
426 
427 static const AVProfile profiles[] = {
428  { FF_PROFILE_AAC_LOW, "LC" },
429  { FF_PROFILE_AAC_HE, "HE-AAC" },
430  { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
431  { FF_PROFILE_AAC_LD, "LD" },
432  { FF_PROFILE_AAC_ELD, "ELD" },
433  { FF_PROFILE_UNKNOWN },
434 };
435 
437  { "b", "0" },
438  { NULL }
439 };
440 
441 static const uint64_t aac_channel_layout[] = {
448 #if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
451 #endif
452  0,
453 };
454 
455 static const int aac_sample_rates[] = {
456  96000, 88200, 64000, 48000, 44100, 32000,
457  24000, 22050, 16000, 12000, 11025, 8000, 0
458 };
459 
461  .name = "libfdk_aac",
462  .long_name = NULL_IF_CONFIG_SMALL("Fraunhofer FDK AAC"),
463  .type = AVMEDIA_TYPE_AUDIO,
464  .id = AV_CODEC_ID_AAC,
465  .priv_data_size = sizeof(AACContext),
467  .encode2 = aac_encode_frame,
468  .close = aac_encode_close,
470  .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
472  .priv_class = &aac_enc_class,
473  .defaults = aac_encode_defaults,
474  .profiles = profiles,
475  .supported_samplerates = aac_sample_rates,
476  .channel_layouts = aac_channel_layout,
477  .wrapper_name = "libfdk",
478 };
error
static void error(const char *err)
Definition: target_bsf_fuzzer.c:30
AVCodecContext::frame_size
int frame_size
Number of samples per channel in an audio frame.
Definition: avcodec.h:1118
AVCodec
AVCodec.
Definition: codec.h:197
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:187
AV_CH_LAYOUT_7POINT1_WIDE_BACK
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK
Definition: channel_layout.h:114
AV_CH_LAYOUT_5POINT0_BACK
#define AV_CH_LAYOUT_5POINT0_BACK
Definition: channel_layout.h:102
av_clip
#define av_clip
Definition: common.h:122
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
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:1644
aac_enc_class
static const AVClass aac_enc_class
Definition: libfdk-aacenc.c:70
AVCodecContext::channel_layout
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1149
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
aac_channel_layout
static const uint64_t aac_channel_layout[]
Definition: libfdk-aacenc.c:441
AVCodecContext::sample_rate
int sample_rate
samples per second
Definition: avcodec.h:1098
ff_af_queue_close
void ff_af_queue_close(AudioFrameQueue *afq)
Close AudioFrameQueue.
Definition: audio_frame_queue.c:36
sample_fmts
static enum AVSampleFormat sample_fmts[]
Definition: adpcmenc.c:953
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition: channel_layout.h:90
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:252
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:351
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
aac_encode_init
static av_cold int aac_encode_init(AVCodecContext *avctx)
Definition: libfdk-aacenc.c:120
internal.h
AVPacket::data
uint8_t * data
Definition: packet.h:365
AACContext::signaling
int signaling
Definition: libfdk-aacenc.c:44
AVOption
AVOption.
Definition: opt.h:248
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:383
AV_CODEC_FLAG_GLOBAL_HEADER
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:306
AVProfile
AVProfile.
Definition: codec.h:183
aac_get_error
static const char * aac_get_error(AACENC_ERROR err)
Definition: libfdk-aacenc.c:77
audio_frame_queue.h
AVCodecContext::initial_padding
int initial_padding
Audio only.
Definition: avcodec.h:1807
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:581
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:91
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:181
av_cold
#define av_cold
Definition: attributes.h:90
FF_PROFILE_AAC_HE_V2
#define FF_PROFILE_AAC_HE_V2
Definition: avcodec.h:1640
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:603
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:567
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:278
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
info
MIPS optimizations info
Definition: mips.txt:2
AACContext::eld_v2
int eld_v2
Definition: libfdk-aacenc.c:43
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1632
AudioFrameQueue
Definition: audio_frame_queue.h:32
AACContext::vbr
int vbr
Definition: libfdk-aacenc.c:47
AACContext::header_period
int header_period
Definition: libfdk-aacenc.c:46
AACContext::latm
int latm
Definition: libfdk-aacenc.c:45
AV_OPT_FLAG_AUDIO_PARAM
#define AV_OPT_FLAG_AUDIO_PARAM
Definition: opt.h:280
if
if(ret)
Definition: filter_design.txt:179
AVCodecDefault
Definition: internal.h:207
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
NULL
#define NULL
Definition: coverity.c:32
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:551
FF_PROFILE_AAC_LD
#define FF_PROFILE_AAC_LD
Definition: avcodec.h:1641
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
profiles.h
aac_encode_close
static int aac_encode_close(AVCodecContext *avctx)
Definition: libfdk-aacenc.c:109
aac_encode_defaults
static const AVCodecDefault aac_encode_defaults[]
Definition: libfdk-aacenc.c:436
AACContext::afterburner
int afterburner
Definition: libfdk-aacenc.c:41
FF_PROFILE_AAC_ELD
#define FF_PROFILE_AAC_ELD
Definition: avcodec.h:1642
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition: codec_id.h:423
AVPacket::size
int size
Definition: packet.h:366
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
FF_PROFILE_AAC_LOW
#define FF_PROFILE_AAC_LOW
Definition: avcodec.h:1636
AACContext::afq
AudioFrameQueue afq
Definition: libfdk-aacenc.c:49
FFMAX
#define FFMAX(a, b)
Definition: common.h:103
AV_SAMPLE_FMT_NONE
@ AV_SAMPLE_FMT_NONE
Definition: samplefmt.h:59
AV_CH_LAYOUT_5POINT1_BACK
#define AV_CH_LAYOUT_5POINT1_BACK
Definition: channel_layout.h:103
AVCodecContext::channels
int channels
number of audio channels
Definition: avcodec.h:1099
AACContext::eld_sbr
int eld_sbr
Definition: libfdk-aacenc.c:42
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:358
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:602
common.h
AVCodecContext::cutoff
int cutoff
Audio cutoff bandwidth (0 means "automatic")
Definition: avcodec.h:1142
AVSampleFormat
AVSampleFormat
Audio sample formats.
Definition: samplefmt.h:58
AV_CH_LAYOUT_7POINT1
#define AV_CH_LAYOUT_7POINT1
Definition: channel_layout.h:112
AV_SAMPLE_FMT_S16
@ AV_SAMPLE_FMT_S16
signed 16 bits
Definition: samplefmt.h:61
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:243
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:204
ff_libfdk_aac_encoder
const AVCodec ff_libfdk_aac_encoder
Definition: libfdk-aacenc.c:460
avcodec.h
FF_PROFILE_AAC_HE
#define FF_PROFILE_AAC_HE
Definition: avcodec.h:1639
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:72
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:94
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: avcodec.h:192
AVCodecContext
main external API structure.
Definition: avcodec.h:501
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:1631
profiles
static const AVProfile profiles[]
Definition: libfdk-aacenc.c:427
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:77
FF_AAC_PROFILE_OPTS
#define FF_AAC_PROFILE_OPTS
Definition: profiles.h:28
AVPacket
This structure stores compressed data.
Definition: packet.h:342
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:528
aac_sample_rates
static const int aac_sample_rates[]
Definition: libfdk-aacenc.c:455
AV_CH_LAYOUT_4POINT0
#define AV_CH_LAYOUT_4POINT0
Definition: channel_layout.h:96
AACContext
main AAC context
Definition: aac.h:294
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AACContext::handle
HANDLE_AACENCODER handle
Definition: libfdk-aacenc.c:40
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:82
ff_alloc_packet2
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:33
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
aac_enc_options
static const AVOption aac_enc_options[]
Definition: libfdk-aacenc.c:52