/
rtp_packetizer.c
641 lines (581 loc) · 22.8 KB
/
rtp_packetizer.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
/*
* GPAC - Multimedia Framework C SDK
*
* Authors: Jean Le Feuvre
* Copyright (c) Telecom ParisTech 2000-2012
* All rights reserved
*
* This file is part of GPAC / IETF RTP/RTSP/SDP sub-project
*
* GPAC is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GPAC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <gpac/internal/ietf_dev.h>
#ifndef GPAC_DISABLE_STREAMING
#include <gpac/constants.h>
#include <gpac/maths.h>
void InitSL_RTP(GF_SLConfig *slc);
GF_EXPORT
GP_RTPPacketizer *gf_rtp_builder_new(u32 rtp_payt, GF_SLConfig *slc, u32 flags,
void *cbk_obj,
void (*OnNewPacket)(void *cbk, GF_RTPHeader *header),
void (*OnPacketDone)(void *cbk, GF_RTPHeader *header),
void (*OnDataReference)(void *cbk, u32 payload_size, u32 offset_from_orig),
void (*OnData)(void *cbk, u8 *data, u32 data_size, Bool is_head)
)
{
GP_RTPPacketizer *tmp;
if (!rtp_payt || !cbk_obj || !OnPacketDone) return NULL;
GF_SAFEALLOC(tmp, GP_RTPPacketizer);
if (!tmp) return NULL;
if (slc) {
memcpy(&tmp->sl_config, slc, sizeof(GF_SLConfig));
} else {
memset(&tmp->sl_config, 0, sizeof(GF_SLConfig));
tmp->sl_config.useTimestampsFlag = 1;
tmp->sl_config.timestampLength = 32;
}
tmp->OnNewPacket = OnNewPacket;
tmp->OnDataReference = OnDataReference;
tmp->OnData = OnData;
tmp->cbk_obj = cbk_obj;
tmp->OnPacketDone = OnPacketDone;
tmp->rtp_payt = rtp_payt;
tmp->flags = flags;
//default init
tmp->sl_header.AU_sequenceNumber = 1;
tmp->sl_header.packetSequenceNumber = 1;
//we assume we start on a new AU
tmp->sl_header.accessUnitStartFlag = 1;
return tmp;
}
GF_EXPORT
void gf_rtp_builder_del(GP_RTPPacketizer *builder)
{
if (!builder) return;
if (builder->payload) gf_bs_del(builder->payload);
if (builder->pck_hdr) gf_bs_del(builder->pck_hdr);
gf_free(builder);
}
GF_EXPORT
GF_Err gf_rtp_builder_process(GP_RTPPacketizer *builder, u8 *data, u32 data_size, u8 IsAUEnd, u32 FullAUSize, u32 duration, u8 descIndex)
{
if (!builder) return GF_BAD_PARAM;
switch (builder->rtp_payt) {
case GF_RTP_PAYT_MPEG4:
return gp_rtp_builder_do_mpeg4(builder, data, data_size, IsAUEnd, FullAUSize);
#ifndef GPAC_DISABLE_AV_PARSERS
case GF_RTP_PAYT_MPEG12_VIDEO:
return gp_rtp_builder_do_mpeg12_video(builder, data, data_size, IsAUEnd, FullAUSize);
#endif
case GF_RTP_PAYT_MPEG12_AUDIO:
return gp_rtp_builder_do_mpeg12_audio(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_H263:
return gp_rtp_builder_do_h263(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_AMR:
case GF_RTP_PAYT_AMR_WB:
return gp_rtp_builder_do_amr(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_3GPP_TEXT:
return gp_rtp_builder_do_tx3g(builder, data, data_size, IsAUEnd, FullAUSize, duration, descIndex);
case GF_RTP_PAYT_H264_AVC:
case GF_RTP_PAYT_H264_SVC:
return gp_rtp_builder_do_avc(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_QCELP:
return gp_rtp_builder_do_qcelp(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_EVRC_SMV:
return gp_rtp_builder_do_smv(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_LATM:
return gp_rtp_builder_do_latm(builder, data, data_size, IsAUEnd, FullAUSize, duration);
#if GPAC_ENABLE_3GPP_DIMS_RTP
case GF_RTP_PAYT_3GPP_DIMS:
return gp_rtp_builder_do_dims(builder, data, data_size, IsAUEnd, FullAUSize, duration);
#endif
case GF_RTP_PAYT_AC3:
case GF_RTP_PAYT_EAC3:
return gp_rtp_builder_do_ac3(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_HEVC:
case GF_RTP_PAYT_LHVC:
return gp_rtp_builder_do_hevc(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_VVC:
return gp_rtp_builder_do_vvc(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_MP2T:
return gp_rtp_builder_do_mp2t(builder, data, data_size, IsAUEnd, FullAUSize);
case GF_RTP_PAYT_OPUS:
return gp_rtp_builder_do_opus(builder, data, data_size, IsAUEnd, FullAUSize);
default:
return GF_NOT_SUPPORTED;
}
}
//Compute the #params of the slMap
GF_EXPORT
void gf_rtp_builder_init(GP_RTPPacketizer *builder, u8 PayloadType, u32 PathMTU, u32 max_ptime,
u32 StreamType, u32 codecid, u32 PL_ID,
u32 avgSize, u32 maxSize,
u32 avgTS, u32 maxDTS,
u32 IV_length, u32 KI_length,
char *pref_mode)
{
u32 k, ismacrypt_flags;
memset(&builder->slMap, 0, sizeof(GP_RTPSLMap));
builder->Path_MTU = PathMTU;
builder->PayloadType = PayloadType;
builder->slMap.StreamType = StreamType;
builder->slMap.CodecID = codecid;
builder->slMap.PL_ID = PL_ID;
builder->max_ptime = max_ptime;
if (pref_mode) strcpy(builder->slMap.mode, pref_mode);
//some cst vars
builder->rtp_header.Version = 2;
builder->rtp_header.PayloadType = builder->PayloadType;
/*our max config is with 1 packet only (SingleSL)*/
builder->first_sl_in_rtp = GF_TRUE;
/*no AUX data*/
builder->slMap.AuxiliaryDataSizeLength = 0;
/*just compute max aggregation size*/
switch (builder->rtp_payt) {
case GF_RTP_PAYT_QCELP:
case GF_RTP_PAYT_EVRC_SMV:
case GF_RTP_PAYT_AMR:
case GF_RTP_PAYT_AMR_WB:
{
u32 nb_pck = 1;
u32 block_size = 160;
/*compute max frames per packet - if no avg size, use max size per codec*/
if (builder->flags & GP_RTP_PCK_USE_MULTI) {
if (builder->rtp_payt == GF_RTP_PAYT_QCELP) {
if (!avgSize) avgSize = 35;
nb_pck = (PathMTU-1) / avgSize; /*one-byte header*/
if (nb_pck>10) nb_pck=10; /*cf RFC2658*/
} else if (builder->rtp_payt == GF_RTP_PAYT_EVRC_SMV) {
if (!avgSize) avgSize = 23;
nb_pck = (PathMTU) / avgSize;
if (nb_pck>32) nb_pck=32; /*cf RFC3558*/
} else if (builder->rtp_payt == GF_RTP_PAYT_AMR_WB) {
if (!avgSize) avgSize = 61;
nb_pck = (PathMTU-1) / avgSize;
block_size = 320;
} else {
if (!avgSize) avgSize = 32;
nb_pck = (PathMTU-1) / avgSize;
}
if (max_ptime) {
u32 max_pck = max_ptime / block_size;
if (nb_pck > max_pck) nb_pck = max_pck;
}
}
if (nb_pck<=1) {
builder->flags &= ~(GP_RTP_PCK_USE_MULTI|GP_RTP_PCK_USE_INTERLEAVING);
builder->auh_size = 1;
} else {
builder->auh_size = nb_pck;
}
/*remove all MPEG-4 and ISMA flags */
builder->flags &= 0x07;
}
return;
case GF_RTP_PAYT_LATM:
case GF_RTP_PAYT_MPEG4:
break;
default:
/*remove all MPEG-4 and ISMA flags */
builder->flags &= 0x07;
/*disable aggregation for visual streams, except for AVC where STAP/MTAP can be used*/
if (StreamType==GF_STREAM_VISUAL) {
if ((codecid != GF_CODECID_AVC) && (codecid != GF_CODECID_SVC) && (codecid != GF_CODECID_MVC) && (codecid != GF_CODECID_HEVC) && (codecid != GF_CODECID_LHVC)) {
builder->flags &= ~GP_RTP_PCK_USE_MULTI;
}
}
else if (avgSize && (PathMTU <= avgSize) ) {
builder->flags &= ~GP_RTP_PCK_USE_MULTI;
}
return;
}
builder->slMap.IV_length = IV_length;
builder->slMap.KI_length = KI_length;
ismacrypt_flags = 0;
if (builder->flags & GP_RTP_PCK_SELECTIVE_ENCRYPTION) ismacrypt_flags |= GP_RTP_PCK_SELECTIVE_ENCRYPTION;
if (builder->flags & GP_RTP_PCK_KEY_IDX_PER_AU) ismacrypt_flags |= GP_RTP_PCK_KEY_IDX_PER_AU;
/*mode setup*/
if (!strnicmp(builder->slMap.mode, "AAC", 3)) {
builder->flags = GP_RTP_PCK_USE_MULTI | GP_RTP_PCK_SIGNAL_SIZE | GP_RTP_PCK_SIGNAL_AU_IDX | ismacrypt_flags;
/*if (builder->flags & GP_RTP_PCK_USE_INTERLEAVING) */
builder->slMap.ConstantDuration = avgTS;
/*AAC LBR*/
if (maxSize < 63) {
strcpy(builder->slMap.mode, "AAC-lbr");
builder->slMap.IndexLength = builder->slMap.IndexDeltaLength = 2;
builder->slMap.SizeLength = 6;
}
/*AAC HBR*/
else {
strcpy(builder->slMap.mode, "AAC-hbr");
builder->slMap.IndexLength = builder->slMap.IndexDeltaLength = 3;
builder->slMap.SizeLength = 13;
}
goto check_header;
}
if (!strnicmp(builder->slMap.mode, "CELP", 4)) {
/*CELP-cbr*/
if (maxSize == avgSize) {
/*reset flags (interleaving forbidden)*/
builder->flags = GP_RTP_PCK_USE_MULTI | ismacrypt_flags;
strcpy(builder->slMap.mode, "CELP-cbr");
builder->slMap.ConstantSize = avgSize;
builder->slMap.ConstantDuration = avgTS;
}
/*CELP VBR*/
else {
strcpy(builder->slMap.mode, "CELP-vbr");
builder->slMap.IndexLength = builder->slMap.IndexDeltaLength = 2;
builder->slMap.SizeLength = 6;
/*if (builder->flags & GP_RTP_PCK_USE_INTERLEAVING) */builder->slMap.ConstantDuration = avgTS;
builder->flags = GP_RTP_PCK_USE_MULTI | GP_RTP_PCK_SIGNAL_SIZE | GP_RTP_PCK_SIGNAL_AU_IDX | ismacrypt_flags;
}
goto check_header;
}
/*generic setup by flags*/
/*size*/
if (builder->flags & GP_RTP_PCK_SIGNAL_SIZE) {
if (avgSize==maxSize) {
builder->slMap.SizeLength = 0;
builder->slMap.ConstantSize = maxSize;
} else {
builder->slMap.SizeLength = gf_get_bit_size(maxSize ? maxSize : PathMTU);
builder->slMap.ConstantSize = 0;
}
} else {
builder->slMap.SizeLength = 0;
if (builder->flags & GP_RTP_PCK_USE_MULTI)
builder->slMap.ConstantSize = (avgSize==maxSize) ? maxSize : 0;
else
builder->slMap.ConstantSize = 0;
}
/*single SL per RTP*/
if (!(builder->flags & GP_RTP_PCK_USE_MULTI)) {
if ( builder->sl_config.AUSeqNumLength && (builder->flags & GP_RTP_PCK_SIGNAL_AU_IDX)) {
builder->slMap.IndexLength = builder->sl_config.AUSeqNumLength;
} else {
builder->slMap.IndexLength = 0;
}
/*one packet per RTP so no delta*/
builder->slMap.IndexDeltaLength = 0;
builder->slMap.IV_delta_length = 0;
/*CTS Delta is always 0 since we have one SL packet per RTP*/
builder->slMap.CTSDeltaLength = 0;
/*DTS Delta depends on the video type*/
if ((builder->flags & GP_RTP_PCK_SIGNAL_TS) && maxDTS )
builder->slMap.DTSDeltaLength = gf_get_bit_size(maxDTS);
else
builder->slMap.DTSDeltaLength = 0;
/*RAP*/
if (builder->sl_config.useRandomAccessPointFlag && (builder->flags & GP_RTP_PCK_SIGNAL_RAP)) {
builder->slMap.RandomAccessIndication = GF_TRUE;
} else {
builder->slMap.RandomAccessIndication = GF_FALSE;
}
/*stream state*/
if (builder->flags & GP_RTP_PCK_SYSTEMS_CAROUSEL) {
if (!builder->sl_config.AUSeqNumLength) builder->sl_config.AUSeqNumLength = 4;
builder->slMap.StreamStateIndication = builder->sl_config.AUSeqNumLength;
}
goto check_header;
}
/*this is the avg samples we can store per RTP packet*/
k = PathMTU / avgSize;
if (k<=1) {
builder->flags &= ~GP_RTP_PCK_USE_MULTI;
/*keep TS signaling for B-frames (eg never default to M4V-ES when B-frames are present)*/
//builder->flags &= ~GP_RTP_PCK_SIGNAL_TS;
builder->flags &= ~GP_RTP_PCK_SIGNAL_SIZE;
builder->flags &= ~GP_RTP_PCK_SIGNAL_AU_IDX;
builder->flags &= ~GP_RTP_PCK_USE_INTERLEAVING;
builder->flags &= ~GP_RTP_PCK_KEY_IDX_PER_AU;
gf_rtp_builder_init(builder, PayloadType, PathMTU, max_ptime, StreamType, codecid, PL_ID, avgSize, maxSize, avgTS, maxDTS, IV_length, KI_length, pref_mode);
return;
}
/*multiple SL per RTP - check if we have to send TS*/
builder->slMap.ConstantDuration = builder->sl_config.CUDuration;
if (!builder->slMap.ConstantDuration) {
builder->flags |= GP_RTP_PCK_SIGNAL_TS;
}
/*if we have a constant duration and are not writting TSs, make sure we write AU IDX when interleaving*/
else if (! (builder->flags & GP_RTP_PCK_SIGNAL_TS) && (builder->flags & GP_RTP_PCK_USE_INTERLEAVING)) {
builder->flags |= GP_RTP_PCK_SIGNAL_AU_IDX;
}
if (builder->flags & GP_RTP_PCK_SIGNAL_TS) {
/*compute CTS delta*/
builder->slMap.CTSDeltaLength = gf_get_bit_size(k*avgTS);
/*compute DTS delta. Delta is ALWAYS from the CTS of the same sample*/
if (maxDTS)
builder->slMap.DTSDeltaLength = gf_get_bit_size(maxDTS);
else
builder->slMap.DTSDeltaLength = 0;
}
if ((builder->flags & GP_RTP_PCK_SIGNAL_AU_IDX) && builder->sl_config.AUSeqNumLength) {
builder->slMap.IndexLength = builder->sl_config.AUSeqNumLength;
/*and k-1 AUs in Delta*/
builder->slMap.IndexDeltaLength = (builder->flags & GP_RTP_PCK_USE_INTERLEAVING) ? gf_get_bit_size(k-1) : 0;
}
else if (builder->flags & GP_RTP_PCK_SYSTEMS_CAROUSEL) {
if (!builder->sl_config.AUSeqNumLength) builder->sl_config.AUSeqNumLength = 4;
builder->slMap.StreamStateIndication = builder->sl_config.AUSeqNumLength;
}
/*RAP*/
if (builder->sl_config.useRandomAccessPointFlag && (builder->flags & GP_RTP_PCK_SIGNAL_RAP)) {
builder->slMap.RandomAccessIndication = GF_TRUE;
} else {
builder->slMap.RandomAccessIndication = GF_FALSE;
}
check_header:
/*IV delta only if interleaving (otherwise reconstruction from IV is trivial)*/
if (IV_length && (builder->flags & GP_RTP_PCK_USE_INTERLEAVING)) {
builder->slMap.IV_delta_length = gf_get_bit_size(maxSize);
}
/*ISMACryp video mode*/
if ((builder->slMap.StreamType==GF_STREAM_VISUAL) && (builder->slMap.CodecID==GF_CODECID_MPEG4_PART2)
&& (builder->flags & GP_RTP_PCK_SIGNAL_RAP) && builder->slMap.IV_length
&& !(builder->flags & GP_RTP_PCK_SIGNAL_AU_IDX) && !(builder->flags & GP_RTP_PCK_SIGNAL_SIZE)
/*shall have SignalTS*/
&& (builder->flags & GP_RTP_PCK_SIGNAL_TS) && !(builder->flags & GP_RTP_PCK_USE_MULTI)
) {
strcpy(builder->slMap.mode, "mpeg4-video");
}
/*ISMACryp AVC video mode*/
else if ((builder->slMap.StreamType==GF_STREAM_VISUAL) && (builder->slMap.CodecID==GF_CODECID_AVC)
&& (builder->flags & GP_RTP_PCK_SIGNAL_RAP) && builder->slMap.IV_length
&& !(builder->flags & GP_RTP_PCK_SIGNAL_AU_IDX) && !(builder->flags & GP_RTP_PCK_SIGNAL_SIZE)
/*shall have SignalTS*/
&& (builder->flags & GP_RTP_PCK_SIGNAL_TS) && !(builder->flags & GP_RTP_PCK_USE_MULTI)
) {
strcpy(builder->slMap.mode, "avc-video");
}
/*check if we use AU header or not*/
if (!builder->slMap.SizeLength
&& !builder->slMap.IndexLength
&& !builder->slMap.IndexDeltaLength
&& !builder->slMap.DTSDeltaLength
&& !builder->slMap.CTSDeltaLength
&& !builder->slMap.RandomAccessIndication
&& !builder->slMap.IV_length
&& !builder->slMap.KI_length
) {
builder->has_AU_header = GF_FALSE;
} else {
builder->has_AU_header = GF_TRUE;
}
}
void gf_rtp_builder_set_cryp_info(GP_RTPPacketizer *builder, u64 IV, char *key_indicator, Bool is_encrypted)
{
if (!builder) return;
if (!key_indicator) {
if (builder->key_indicator) {
/*force flush if no provision for keyIndicator per AU*/
builder->force_flush = (builder->flags & GP_RTP_PCK_KEY_IDX_PER_AU) ? GF_FALSE : GF_TRUE;
gf_free(builder->key_indicator);
builder->key_indicator = NULL;
}
} else if (!builder->key_indicator
||
memcmp(builder->key_indicator, key_indicator, sizeof(char)*builder->slMap.KI_length)
) {
/*force flush if no provision for keyIndicator per AU*/
builder->force_flush = (builder->flags & GP_RTP_PCK_KEY_IDX_PER_AU) ? GF_FALSE : GF_TRUE;
if (!builder->key_indicator) builder->key_indicator = (char *) gf_malloc(sizeof(char)*builder->slMap.KI_length);
memcpy(builder->key_indicator, key_indicator, sizeof(char)*builder->slMap.KI_length);
}
if (builder->IV != IV) {
builder->IV = IV;
if (builder->slMap.IV_delta_length && (builder->slMap.IV_delta_length < gf_get_bit_size((u32) (IV - builder->first_AU_IV) ))) {
builder->first_AU_IV = IV;
builder->force_flush = GF_TRUE;
}
}
builder->is_encrypted = is_encrypted;
}
GF_EXPORT
Bool gf_rtp_builder_get_payload_name(GP_RTPPacketizer *rtpb, char szPayloadName[20], char szMediaName[20])
{
u32 flags = rtpb->flags;
switch (rtpb->rtp_payt) {
case GF_RTP_PAYT_MPEG4:
if ((rtpb->slMap.StreamType==GF_STREAM_VISUAL) && (rtpb->slMap.CodecID==GF_CODECID_MPEG4_PART2)) {
strcpy(szMediaName, "video");
/*ISMACryp video*/
if ( (flags & GP_RTP_PCK_SIGNAL_RAP) && rtpb->slMap.IV_length
&& !(flags & GP_RTP_PCK_SIGNAL_AU_IDX) && !(flags & GP_RTP_PCK_SIGNAL_SIZE)
&& (flags & GP_RTP_PCK_SIGNAL_TS) && !(flags & GP_RTP_PCK_USE_MULTI)
)
{
strcpy(szPayloadName, "enc-mpeg4-generic");
return GF_TRUE;
}
/*mpeg4-generic*/
if ( (flags & GP_RTP_PCK_SIGNAL_RAP) || (flags & GP_RTP_PCK_SIGNAL_AU_IDX) || (flags & GP_RTP_PCK_SIGNAL_SIZE)
|| (flags & GP_RTP_PCK_SIGNAL_TS) || (flags & GP_RTP_PCK_USE_MULTI) ) {
strcpy(szPayloadName, "mpeg4-generic");
return GF_TRUE;
} else {
strcpy(szPayloadName, "MP4V-ES");
return GF_TRUE;
}
}
/*for all other types*/
if (rtpb->slMap.StreamType==GF_STREAM_AUDIO) strcpy(szMediaName, "audio");
else if (rtpb->slMap.StreamType==GF_STREAM_MPEGJ) strcpy(szMediaName, "application");
else strcpy(szMediaName, "video");
strcpy(szPayloadName, rtpb->slMap.IV_length ? "enc-mpeg4-generic" : "mpeg4-generic");
return GF_TRUE;
case GF_RTP_PAYT_MPEG12_VIDEO:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "MPV");
return GF_TRUE;
case GF_RTP_PAYT_MPEG12_AUDIO:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "MPA");
return GF_TRUE;
case GF_RTP_PAYT_H263:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H263-1998");
return GF_TRUE;
case GF_RTP_PAYT_AMR:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "AMR");
return GF_TRUE;
case GF_RTP_PAYT_AMR_WB:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "AMR-WB");
return GF_TRUE;
case GF_RTP_PAYT_3GPP_TEXT:
strcpy(szMediaName, "text");
strcpy(szPayloadName, "3gpp-tt");
return GF_TRUE;
case GF_RTP_PAYT_H264_AVC:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H264");
return GF_TRUE;
case GF_RTP_PAYT_QCELP:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "QCELP");
return GF_TRUE;
case GF_RTP_PAYT_EVRC_SMV:
strcpy(szMediaName, "audio");
if ((rtpb->slMap.CodecID==0xA0) || (rtpb->slMap.CodecID==GF_CODECID_EVRC))
strcpy(szPayloadName, "EVRC");
else
strcpy(szPayloadName, "SMV");
/*header-free version*/
if (rtpb->auh_size<=1) strcat(szPayloadName, "0");
return GF_TRUE;
case GF_RTP_PAYT_LATM:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "MP4A-LATM");
return GF_TRUE;
#if GPAC_ENABLE_3GPP_DIMS_RTP
case GF_RTP_PAYT_3GPP_DIMS:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "richmedia+xml");
return GF_TRUE;
#endif
case GF_RTP_PAYT_AC3:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "ac3");
return GF_TRUE;
case GF_RTP_PAYT_EAC3:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "eac3");
return GF_TRUE;
case GF_RTP_PAYT_OPUS:
strcpy(szMediaName, "audio");
strcpy(szPayloadName, "opus");
return GF_TRUE;
case GF_RTP_PAYT_H264_SVC:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H264-SVC");
return GF_TRUE;
case GF_RTP_PAYT_HEVC:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H265");
return GF_TRUE;
case GF_RTP_PAYT_LHVC:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H265-SHVC");
return GF_TRUE;
case GF_RTP_PAYT_VVC:
strcpy(szMediaName, "video");
strcpy(szPayloadName, "H266");
return GF_TRUE;
default:
strcpy(szMediaName, "");
strcpy(szPayloadName, "");
return GF_FALSE;
}
return GF_FALSE;
}
GF_EXPORT
GF_Err gf_rtp_builder_format_sdp(GP_RTPPacketizer *builder, char *payload_name, char *sdpLine, char *dsi, u32 dsi_size)
{
char buffer[20100], dsiString[20000];
u32 i, k;
Bool is_first = GF_TRUE;
if ((builder->rtp_payt!=GF_RTP_PAYT_MPEG4) && (builder->rtp_payt!=GF_RTP_PAYT_LATM) ) return GF_BAD_PARAM;
#define SDP_ADD_INT(_name, _val) { if (!is_first) strcat(sdpLine, "; "); sprintf(buffer, "%s=%d", _name, _val); strcat(sdpLine, buffer); is_first = 0;}
#define SDP_ADD_STR(_name, _val) { if (!is_first) strcat(sdpLine, "; "); sprintf(buffer, "%s=%s", _name, _val); strcat(sdpLine, buffer); is_first = 0;}
sprintf(sdpLine, "a=fmtp:%d ", builder->PayloadType);
/*mandatory fields*/
if (builder->slMap.PL_ID) SDP_ADD_INT("profile-level-id", builder->slMap.PL_ID);
if (builder->rtp_payt == GF_RTP_PAYT_LATM) SDP_ADD_INT("cpresent", 0);
if (dsi && dsi_size) {
k = 0;
for (i=0; i<dsi_size; i++) {
sprintf(&dsiString[k], "%02x", (unsigned char) dsi[i]);
k+=2;
}
dsiString[k] = 0;
SDP_ADD_STR("config", dsiString);
}
if (!strcmp(payload_name, "MP4V-ES") || (builder->rtp_payt == GF_RTP_PAYT_LATM) ) return GF_OK;
SDP_ADD_INT("streamType", builder->slMap.StreamType);
if (strcmp(builder->slMap.mode, "") && strcmp(builder->slMap.mode, "default")) {
SDP_ADD_STR("mode", builder->slMap.mode);
} else {
SDP_ADD_STR("mode", "generic");
}
/*optional fields*/
if (builder->slMap.CodecID) SDP_ADD_INT("objectType", builder->slMap.CodecID);
if (builder->slMap.ConstantSize) SDP_ADD_INT("constantSize", builder->slMap.ConstantSize);
if (builder->slMap.ConstantDuration) SDP_ADD_INT("constantDuration", builder->slMap.ConstantDuration);
if (builder->slMap.maxDisplacement) SDP_ADD_INT("maxDisplacement", builder->slMap.maxDisplacement);
if (builder->slMap.deinterleaveBufferSize) SDP_ADD_INT("de-interleaveBufferSize", builder->slMap.deinterleaveBufferSize);
if (builder->slMap.SizeLength) SDP_ADD_INT("sizeLength", builder->slMap.SizeLength);
if (builder->slMap.IndexLength) SDP_ADD_INT("indexLength", builder->slMap.IndexLength);
if (builder->slMap.IndexDeltaLength) SDP_ADD_INT("indexDeltaLength", builder->slMap.IndexDeltaLength);
if (builder->slMap.CTSDeltaLength) SDP_ADD_INT("CTSDeltaLength", builder->slMap.CTSDeltaLength);
if (builder->slMap.DTSDeltaLength) SDP_ADD_INT("DTSDeltaLength", builder->slMap.DTSDeltaLength);
if (builder->slMap.RandomAccessIndication) SDP_ADD_INT("randomAccessIndication", builder->slMap.RandomAccessIndication);
if (builder->slMap.StreamStateIndication) SDP_ADD_INT("streamStateIndication", builder->slMap.StreamStateIndication);
if (builder->slMap.AuxiliaryDataSizeLength) SDP_ADD_INT("auxiliaryDataSizeLength", builder->slMap.AuxiliaryDataSizeLength);
/*ISMACryp config*/
if (builder->slMap.IV_length) {
/*don't write default*/
/*SDP_ADD_STR("ISMACrypCryptoSuite", "AES_CTR_128");*/
if (builder->flags & GP_RTP_PCK_SELECTIVE_ENCRYPTION) SDP_ADD_INT("ISMACrypSelectiveEncryption", 1);
SDP_ADD_INT("ISMACrypIVLength", builder->slMap.IV_length);
if (builder->slMap.IV_delta_length) SDP_ADD_INT("ISMACrypDeltaIVLength", builder->slMap.IV_delta_length);
if (builder->slMap.KI_length) SDP_ADD_INT("ISMACrypKeyIndicatorLength", builder->slMap.KI_length);
if (builder->flags & GP_RTP_PCK_KEY_IDX_PER_AU) SDP_ADD_INT("ISMACrypKeyIndicatorPerAU", 1);
}
return GF_OK;
}
#endif /*GPAC_DISABLE_STREAMING*/