libfdk-aacenc: Allow enabling the ELDv2 profile
[libav.git] / libavcodec / libfdk-aacenc.c
CommitLineData
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MS
1/*
2 * AAC encoder wrapper
3 * Copyright (c) 2012 Martin Storsjo
4 *
5 * This file is part of Libav.
6 *
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MS
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.
37eeb5e2 10 *
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MS
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.
37eeb5e2
MS
18 */
19
20#include <fdk-aac/aacenc_lib.h>
21
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JR
22#include "libavutil/channel_layout.h"
23#include "libavutil/common.h"
24#include "libavutil/opt.h"
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MS
25#include "avcodec.h"
26#include "audio_frame_queue.h"
27#include "internal.h"
37eeb5e2 28
141c960e
MS
29#define FDKENC_VER_AT_LEAST(vl0, vl1) \
30 (defined(AACENCODER_LIB_VL0) && \
31 ((AACENCODER_LIB_VL0 > vl0) || \
32 (AACENCODER_LIB_VL0 == vl0 && AACENCODER_LIB_VL1 >= vl1)))
33
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MS
34typedef struct AACContext {
35 const AVClass *class;
36 HANDLE_AACENCODER handle;
37 int afterburner;
38 int eld_sbr;
7e929dac 39 int eld_v2;
37eeb5e2 40 int signaling;
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KK
41 int latm;
42 int header_period;
375bff70 43 int vbr;
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MS
44
45 AudioFrameQueue afq;
46} AACContext;
47
48static const AVOption aac_enc_options[] = {
e6153f17
MS
49 { "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 },
50 { "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 },
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MS
51#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
52 { "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 },
53#endif
e6153f17 54 { "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" },
124134e4
MS
55 { "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" },
56 { "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" },
57 { "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" },
58 { "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" },
e6153f17
MS
59 { "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 },
60 { "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 },
375bff70 61 { "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 },
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MS
62 { NULL }
63};
64
65static const AVClass aac_enc_class = {
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DB
66 .class_name = "libfdk_aac",
67 .item_name = av_default_item_name,
68 .option = aac_enc_options,
69 .version = LIBAVUTIL_VERSION_INT,
37eeb5e2
MS
70};
71
72static const char *aac_get_error(AACENC_ERROR err)
73{
74 switch (err) {
75 case AACENC_OK:
76 return "No error";
77 case AACENC_INVALID_HANDLE:
78 return "Invalid handle";
79 case AACENC_MEMORY_ERROR:
80 return "Memory allocation error";
81 case AACENC_UNSUPPORTED_PARAMETER:
82 return "Unsupported parameter";
83 case AACENC_INVALID_CONFIG:
84 return "Invalid config";
85 case AACENC_INIT_ERROR:
86 return "Initialization error";
87 case AACENC_INIT_AAC_ERROR:
88 return "AAC library initialization error";
89 case AACENC_INIT_SBR_ERROR:
90 return "SBR library initialization error";
91 case AACENC_INIT_TP_ERROR:
92 return "Transport library initialization error";
93 case AACENC_INIT_META_ERROR:
94 return "Metadata library initialization error";
95 case AACENC_ENCODE_ERROR:
96 return "Encoding error";
97 case AACENC_ENCODE_EOF:
98 return "End of file";
99 default:
100 return "Unknown error";
101 }
102}
103
104static int aac_encode_close(AVCodecContext *avctx)
105{
106 AACContext *s = avctx->priv_data;
107
108 if (s->handle)
109 aacEncClose(&s->handle);
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MS
110 av_freep(&avctx->extradata);
111 ff_af_queue_close(&s->afq);
112
113 return 0;
114}
115
116static av_cold int aac_encode_init(AVCodecContext *avctx)
117{
118 AACContext *s = avctx->priv_data;
119 int ret = AVERROR(EINVAL);
120 AACENC_InfoStruct info = { 0 };
121 CHANNEL_MODE mode;
122 AACENC_ERROR err;
123 int aot = FF_PROFILE_AAC_LOW + 1;
124 int sce = 0, cpe = 0;
125
126 if ((err = aacEncOpen(&s->handle, 0, avctx->channels)) != AACENC_OK) {
127 av_log(avctx, AV_LOG_ERROR, "Unable to open the encoder: %s\n",
128 aac_get_error(err));
129 goto error;
130 }
131
132 if (avctx->profile != FF_PROFILE_UNKNOWN)
133 aot = avctx->profile + 1;
134
135 if ((err = aacEncoder_SetParam(s->handle, AACENC_AOT, aot)) != AACENC_OK) {
136 av_log(avctx, AV_LOG_ERROR, "Unable to set the AOT %d: %s\n",
137 aot, aac_get_error(err));
138 goto error;
139 }
140
141 if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_sbr) {
142 if ((err = aacEncoder_SetParam(s->handle, AACENC_SBR_MODE,
143 1)) != AACENC_OK) {
144 av_log(avctx, AV_LOG_ERROR, "Unable to enable SBR for ELD: %s\n",
145 aac_get_error(err));
146 goto error;
147 }
148 }
149
150 if ((err = aacEncoder_SetParam(s->handle, AACENC_SAMPLERATE,
151 avctx->sample_rate)) != AACENC_OK) {
152 av_log(avctx, AV_LOG_ERROR, "Unable to set the sample rate %d: %s\n",
153 avctx->sample_rate, aac_get_error(err));
154 goto error;
155 }
156
157 switch (avctx->channels) {
158 case 1: mode = MODE_1; sce = 1; cpe = 0; break;
7e929dac
MS
159 case 2:
160#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
161 // (profile + 1) to map from profile range to AOT range
162 if (aot == FF_PROFILE_AAC_ELD + 1 && s->eld_v2) {
163 if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
164 128)) != AACENC_OK) {
165 av_log(avctx, AV_LOG_ERROR, "Unable to enable ELDv2: %s\n",
166 aac_get_error(err));
167 goto error;
168 } else {
169 mode = MODE_212;
170 sce = 1;
171 cpe = 0;
172 }
173 } else
174#endif
175 {
176 mode = MODE_2;
177 sce = 0;
178 cpe = 1;
179 }
180 break;
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MS
181 case 3: mode = MODE_1_2; sce = 1; cpe = 1; break;
182 case 4: mode = MODE_1_2_1; sce = 2; cpe = 1; break;
183 case 5: mode = MODE_1_2_2; sce = 1; cpe = 2; break;
184 case 6: mode = MODE_1_2_2_1; sce = 2; cpe = 2; break;
15fa856b
JF
185/* The version macro is introduced the same time as the 7.1 support, so this
186 should suffice. */
ffb9b7a6 187#if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
15fa856b
JF
188 case 8:
189 sce = 2;
190 cpe = 3;
191 if (avctx->channel_layout == AV_CH_LAYOUT_7POINT1) {
192 mode = MODE_7_1_REAR_SURROUND;
193 } else {
194 // MODE_1_2_2_2_1 and MODE_7_1_FRONT_CENTER use the same channel layout
195 mode = MODE_7_1_FRONT_CENTER;
196 }
197 break;
198#endif
37eeb5e2
MS
199 default:
200 av_log(avctx, AV_LOG_ERROR,
201 "Unsupported number of channels %d\n", avctx->channels);
202 goto error;
203 }
204
205 if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELMODE,
206 mode)) != AACENC_OK) {
207 av_log(avctx, AV_LOG_ERROR,
208 "Unable to set channel mode %d: %s\n", mode, aac_get_error(err));
209 goto error;
210 }
211
212 if ((err = aacEncoder_SetParam(s->handle, AACENC_CHANNELORDER,
213 1)) != AACENC_OK) {
214 av_log(avctx, AV_LOG_ERROR,
215 "Unable to set wav channel order %d: %s\n",
216 mode, aac_get_error(err));
217 goto error;
218 }
219
7c6eb0a1 220 if (avctx->flags & AV_CODEC_FLAG_QSCALE || s->vbr) {
375bff70 221 int mode = s->vbr ? s->vbr : avctx->global_quality;
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MS
222 if (mode < 1 || mode > 5) {
223 av_log(avctx, AV_LOG_WARNING,
224 "VBR quality %d out of range, should be 1-5\n", mode);
225 mode = av_clip(mode, 1, 5);
226 }
a10190dc
MS
227 av_log(avctx, AV_LOG_WARNING,
228 "Note, the VBR setting is unsupported and only works with "
229 "some parameter combinations\n");
37eeb5e2
MS
230 if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATEMODE,
231 mode)) != AACENC_OK) {
232 av_log(avctx, AV_LOG_ERROR, "Unable to set the VBR bitrate mode %d: %s\n",
233 mode, aac_get_error(err));
234 goto error;
235 }
236 } else {
237 if (avctx->bit_rate <= 0) {
238 if (avctx->profile == FF_PROFILE_AAC_HE_V2) {
239 sce = 1;
240 cpe = 0;
241 }
242 avctx->bit_rate = (96*sce + 128*cpe) * avctx->sample_rate / 44;
243 if (avctx->profile == FF_PROFILE_AAC_HE ||
244 avctx->profile == FF_PROFILE_AAC_HE_V2 ||
95d52464 245 avctx->profile == FF_PROFILE_MPEG2_AAC_HE ||
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MS
246 s->eld_sbr)
247 avctx->bit_rate /= 2;
248 }
249 if ((err = aacEncoder_SetParam(s->handle, AACENC_BITRATE,
250 avctx->bit_rate)) != AACENC_OK) {
251 av_log(avctx, AV_LOG_ERROR, "Unable to set the bitrate %d: %s\n",
252 avctx->bit_rate, aac_get_error(err));
253 goto error;
254 }
255 }
256
257 /* Choose bitstream format - if global header is requested, use
258 * raw access units, otherwise use ADTS. */
259 if ((err = aacEncoder_SetParam(s->handle, AACENC_TRANSMUX,
b9302677
MS
260 avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? TT_MP4_RAW :
261 s->latm ? TT_MP4_LOAS : TT_MP4_ADTS)) != AACENC_OK) {
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MS
262 av_log(avctx, AV_LOG_ERROR, "Unable to set the transmux format: %s\n",
263 aac_get_error(err));
264 goto error;
265 }
266
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KK
267 if (s->latm && s->header_period) {
268 if ((err = aacEncoder_SetParam(s->handle, AACENC_HEADER_PERIOD,
269 s->header_period)) != AACENC_OK) {
270 av_log(avctx, AV_LOG_ERROR, "Unable to set header period: %s\n",
271 aac_get_error(err));
272 goto error;
273 }
274 }
275
37eeb5e2
MS
276 /* If no signaling mode is chosen, use explicit hierarchical signaling
277 * if using mp4 mode (raw access units, with global header) and
278 * implicit signaling if using ADTS. */
279 if (s->signaling < 0)
7c6eb0a1 280 s->signaling = avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER ? 2 : 0;
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MS
281
282 if ((err = aacEncoder_SetParam(s->handle, AACENC_SIGNALING_MODE,
283 s->signaling)) != AACENC_OK) {
284 av_log(avctx, AV_LOG_ERROR, "Unable to set signaling mode %d: %s\n",
285 s->signaling, aac_get_error(err));
286 goto error;
287 }
288
289 if ((err = aacEncoder_SetParam(s->handle, AACENC_AFTERBURNER,
290 s->afterburner)) != AACENC_OK) {
291 av_log(avctx, AV_LOG_ERROR, "Unable to set afterburner to %d: %s\n",
292 s->afterburner, aac_get_error(err));
293 goto error;
294 }
295
7548831c 296 if (avctx->cutoff > 0) {
375ef652 297 if (avctx->cutoff < (avctx->sample_rate + 255) >> 8 || avctx->cutoff > 20000) {
c37c383e
MA
298 av_log(avctx, AV_LOG_ERROR, "cutoff valid range is %d-20000\n",
299 (avctx->sample_rate + 255) >> 8);
300 goto error;
301 }
7548831c
MS
302 if ((err = aacEncoder_SetParam(s->handle, AACENC_BANDWIDTH,
303 avctx->cutoff)) != AACENC_OK) {
511cf612 304 av_log(avctx, AV_LOG_ERROR, "Unable to set the encoder bandwidth to %d: %s\n",
7548831c
MS
305 avctx->cutoff, aac_get_error(err));
306 goto error;
307 }
308 }
309
37eeb5e2
MS
310 if ((err = aacEncEncode(s->handle, NULL, NULL, NULL, NULL)) != AACENC_OK) {
311 av_log(avctx, AV_LOG_ERROR, "Unable to initialize the encoder: %s\n",
312 aac_get_error(err));
313 return AVERROR(EINVAL);
314 }
315
316 if ((err = aacEncInfo(s->handle, &info)) != AACENC_OK) {
317 av_log(avctx, AV_LOG_ERROR, "Unable to get encoder info: %s\n",
318 aac_get_error(err));
319 goto error;
320 }
321
37eeb5e2 322 avctx->frame_size = info.frameLength;
ffb9b7a6 323#if FDKENC_VER_AT_LEAST(4, 0) // 4.0.0
141c960e
MS
324 avctx->initial_padding = info.nDelay;
325#else
2df0c32e 326 avctx->initial_padding = info.encoderDelay;
141c960e 327#endif
37eeb5e2
MS
328 ff_af_queue_init(avctx, &s->afq);
329
7c6eb0a1 330 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
37eeb5e2
MS
331 avctx->extradata_size = info.confSize;
332 avctx->extradata = av_mallocz(avctx->extradata_size +
059a9348 333 AV_INPUT_BUFFER_PADDING_SIZE);
37eeb5e2
MS
334 if (!avctx->extradata) {
335 ret = AVERROR(ENOMEM);
336 goto error;
337 }
338
339 memcpy(avctx->extradata, info.confBuf, info.confSize);
340 }
341 return 0;
342error:
343 aac_encode_close(avctx);
344 return ret;
345}
346
347static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
348 const AVFrame *frame, int *got_packet_ptr)
349{
350 AACContext *s = avctx->priv_data;
351 AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
352 AACENC_InArgs in_args = { 0 };
353 AACENC_OutArgs out_args = { 0 };
354 int in_buffer_identifier = IN_AUDIO_DATA;
355 int in_buffer_size, in_buffer_element_size;
356 int out_buffer_identifier = OUT_BITSTREAM_DATA;
357 int out_buffer_size, out_buffer_element_size;
358 void *in_ptr, *out_ptr;
359 int ret;
141c960e 360 uint8_t dummy_buf[1];
37eeb5e2
MS
361 AACENC_ERROR err;
362
363 /* handle end-of-stream small frame and flushing */
364 if (!frame) {
141c960e
MS
365 /* Must be a non-null pointer, even if it's a dummy. We could use
366 * the address of anything else on the stack as well. */
367 in_ptr = dummy_buf;
368 in_buffer_size = 0;
369
37eeb5e2
MS
370 in_args.numInSamples = -1;
371 } else {
141c960e
MS
372 in_ptr = frame->data[0];
373 in_buffer_size = 2 * avctx->channels * frame->nb_samples;
37eeb5e2 374
141c960e 375 in_args.numInSamples = avctx->channels * frame->nb_samples;
37eeb5e2
MS
376
377 /* add current frame to the queue */
1d7ffd06 378 if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
37eeb5e2
MS
379 return ret;
380 }
381
141c960e
MS
382 in_buffer_element_size = 2;
383 in_buf.numBufs = 1;
384 in_buf.bufs = &in_ptr;
385 in_buf.bufferIdentifiers = &in_buffer_identifier;
386 in_buf.bufSizes = &in_buffer_size;
387 in_buf.bufElSizes = &in_buffer_element_size;
388
37eeb5e2
MS
389 /* The maximum packet size is 6144 bits aka 768 bytes per channel. */
390 if ((ret = ff_alloc_packet(avpkt, FFMAX(8192, 768 * avctx->channels)))) {
391 av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
392 return ret;
393 }
394
395 out_ptr = avpkt->data;
396 out_buffer_size = avpkt->size;
397 out_buffer_element_size = 1;
398 out_buf.numBufs = 1;
399 out_buf.bufs = &out_ptr;
400 out_buf.bufferIdentifiers = &out_buffer_identifier;
401 out_buf.bufSizes = &out_buffer_size;
402 out_buf.bufElSizes = &out_buffer_element_size;
403
404 if ((err = aacEncEncode(s->handle, &in_buf, &out_buf, &in_args,
405 &out_args)) != AACENC_OK) {
406 if (!frame && err == AACENC_ENCODE_EOF)
407 return 0;
408 av_log(avctx, AV_LOG_ERROR, "Unable to encode frame: %s\n",
409 aac_get_error(err));
410 return AVERROR(EINVAL);
411 }
412
413 if (!out_args.numOutBytes)
414 return 0;
415
416 /* Get the next frame pts & duration */
417 ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
418 &avpkt->duration);
419
420 avpkt->size = out_args.numOutBytes;
421 *got_packet_ptr = 1;
422 return 0;
423}
424
425static const AVProfile profiles[] = {
426 { FF_PROFILE_AAC_LOW, "LC" },
427 { FF_PROFILE_AAC_HE, "HE-AAC" },
428 { FF_PROFILE_AAC_HE_V2, "HE-AACv2" },
429 { FF_PROFILE_AAC_LD, "LD" },
430 { FF_PROFILE_AAC_ELD, "ELD" },
431 { FF_PROFILE_UNKNOWN },
432};
433
434static const AVCodecDefault aac_encode_defaults[] = {
435 { "b", "0" },
436 { NULL }
437};
438
439static const uint64_t aac_channel_layout[] = {
440 AV_CH_LAYOUT_MONO,
441 AV_CH_LAYOUT_STEREO,
442 AV_CH_LAYOUT_SURROUND,
443 AV_CH_LAYOUT_4POINT0,
444 AV_CH_LAYOUT_5POINT0_BACK,
445 AV_CH_LAYOUT_5POINT1_BACK,
ffb9b7a6 446#if FDKENC_VER_AT_LEAST(3, 4) // 3.4.12
15fa856b
JF
447 AV_CH_LAYOUT_7POINT1_WIDE_BACK,
448 AV_CH_LAYOUT_7POINT1,
449#endif
37eeb5e2
MS
450 0,
451};
452
94a69dee
NC
453static const int aac_sample_rates[] = {
454 96000, 88200, 64000, 48000, 44100, 32000,
455 24000, 22050, 16000, 12000, 11025, 8000, 0
456};
457
37eeb5e2 458AVCodec ff_libfdk_aac_encoder = {
c8ba8be2 459 .name = "libfdk_aac",
b2bed932 460 .long_name = NULL_IF_CONFIG_SMALL("Fraunhofer FDK AAC"),
c8ba8be2
NC
461 .type = AVMEDIA_TYPE_AUDIO,
462 .id = AV_CODEC_ID_AAC,
463 .priv_data_size = sizeof(AACContext),
464 .init = aac_encode_init,
465 .encode2 = aac_encode_frame,
466 .close = aac_encode_close,
def97856 467 .capabilities = AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY,
c8ba8be2
NC
468 .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
469 AV_SAMPLE_FMT_NONE },
c8ba8be2
NC
470 .priv_class = &aac_enc_class,
471 .defaults = aac_encode_defaults,
472 .profiles = profiles,
94a69dee 473 .supported_samplerates = aac_sample_rates,
c8ba8be2 474 .channel_layouts = aac_channel_layout,
47687a2f 475 .wrapper_name = "libfdk",
37eeb5e2 476};