Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
2 | * copyright (c) 2007 Luca Abeni | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <string.h> | |
22 | #include "libavutil/avstring.h" | |
23 | #include "libavutil/base64.h" | |
24 | #include "libavutil/dict.h" | |
25 | #include "libavutil/parseutils.h" | |
26 | #include "libavutil/opt.h" | |
27 | #include "libavcodec/xiph.h" | |
28 | #include "libavcodec/mpeg4audio.h" | |
29 | #include "avformat.h" | |
30 | #include "internal.h" | |
31 | #include "avc.h" | |
f6fa7814 | 32 | #include "hevc.h" |
2ba45a60 DM |
33 | #include "rtp.h" |
34 | #if CONFIG_NETWORK | |
35 | #include "network.h" | |
36 | #endif | |
37 | ||
38 | #if CONFIG_RTP_MUXER | |
39 | #define MAX_EXTRADATA_SIZE ((INT_MAX - 10) / 2) | |
40 | ||
41 | struct sdp_session_level { | |
42 | int sdp_version; /**< protocol version (currently 0) */ | |
43 | int id; /**< session ID */ | |
44 | int version; /**< session version */ | |
45 | int start_time; /**< session start time (NTP time, in seconds), | |
46 | or 0 in case of permanent session */ | |
47 | int end_time; /**< session end time (NTP time, in seconds), | |
48 | or 0 if the session is not bounded */ | |
49 | int ttl; /**< TTL, in case of multicast stream */ | |
50 | const char *user; /**< username of the session's creator */ | |
51 | const char *src_addr; /**< IP address of the machine from which the session was created */ | |
52 | const char *src_type; /**< address type of src_addr */ | |
53 | const char *dst_addr; /**< destination IP address (can be multicast) */ | |
54 | const char *dst_type; /**< destination IP address type */ | |
55 | const char *name; /**< session name (can be an empty string) */ | |
56 | }; | |
57 | ||
58 | static void sdp_write_address(char *buff, int size, const char *dest_addr, | |
59 | const char *dest_type, int ttl) | |
60 | { | |
61 | if (dest_addr) { | |
62 | if (!dest_type) | |
63 | dest_type = "IP4"; | |
64 | if (ttl > 0 && !strcmp(dest_type, "IP4")) { | |
65 | /* The TTL should only be specified for IPv4 multicast addresses, | |
66 | * not for IPv6. */ | |
67 | av_strlcatf(buff, size, "c=IN %s %s/%d\r\n", dest_type, dest_addr, ttl); | |
68 | } else { | |
69 | av_strlcatf(buff, size, "c=IN %s %s\r\n", dest_type, dest_addr); | |
70 | } | |
71 | } | |
72 | } | |
73 | ||
74 | static void sdp_write_header(char *buff, int size, struct sdp_session_level *s) | |
75 | { | |
76 | av_strlcatf(buff, size, "v=%d\r\n" | |
77 | "o=- %d %d IN %s %s\r\n" | |
78 | "s=%s\r\n", | |
79 | s->sdp_version, | |
80 | s->id, s->version, s->src_type, s->src_addr, | |
81 | s->name); | |
82 | sdp_write_address(buff, size, s->dst_addr, s->dst_type, s->ttl); | |
83 | av_strlcatf(buff, size, "t=%d %d\r\n" | |
84 | "a=tool:libavformat " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\r\n", | |
85 | s->start_time, s->end_time); | |
86 | } | |
87 | ||
88 | #if CONFIG_NETWORK | |
89 | static int resolve_destination(char *dest_addr, int size, char *type, | |
90 | int type_size) | |
91 | { | |
92 | struct addrinfo hints = { 0 }, *ai; | |
93 | int is_multicast; | |
94 | ||
95 | av_strlcpy(type, "IP4", type_size); | |
96 | if (!dest_addr[0]) | |
97 | return 0; | |
98 | ||
99 | /* Resolve the destination, since it must be written | |
100 | * as a numeric IP address in the SDP. */ | |
101 | ||
102 | if (getaddrinfo(dest_addr, NULL, &hints, &ai)) | |
103 | return 0; | |
104 | getnameinfo(ai->ai_addr, ai->ai_addrlen, dest_addr, size, | |
105 | NULL, 0, NI_NUMERICHOST); | |
106 | #ifdef AF_INET6 | |
107 | if (ai->ai_family == AF_INET6) | |
108 | av_strlcpy(type, "IP6", type_size); | |
109 | #endif | |
110 | is_multicast = ff_is_multicast_address(ai->ai_addr); | |
111 | freeaddrinfo(ai); | |
112 | return is_multicast; | |
113 | } | |
114 | #else | |
115 | static int resolve_destination(char *dest_addr, int size, char *type, | |
116 | int type_size) | |
117 | { | |
118 | return 0; | |
119 | } | |
120 | #endif | |
121 | ||
122 | static int sdp_get_address(char *dest_addr, int size, int *ttl, const char *url) | |
123 | { | |
124 | int port; | |
125 | const char *p; | |
126 | char proto[32]; | |
127 | ||
128 | av_url_split(proto, sizeof(proto), NULL, 0, dest_addr, size, &port, NULL, 0, url); | |
129 | ||
130 | *ttl = 0; | |
131 | ||
132 | if (strcmp(proto, "rtp") && strcmp(proto, "srtp")) { | |
133 | /* The url isn't for the actual rtp sessions, | |
134 | * don't parse out anything else than the destination. | |
135 | */ | |
136 | return 0; | |
137 | } | |
138 | ||
139 | p = strchr(url, '?'); | |
140 | if (p) { | |
141 | char buff[64]; | |
142 | ||
143 | if (av_find_info_tag(buff, sizeof(buff), "ttl", p)) { | |
144 | *ttl = strtol(buff, NULL, 10); | |
145 | } else { | |
146 | *ttl = 5; | |
147 | } | |
148 | } | |
149 | ||
150 | return port; | |
151 | } | |
152 | ||
153 | #define MAX_PSET_SIZE 1024 | |
154 | static char *extradata2psets(AVCodecContext *c) | |
155 | { | |
156 | char *psets, *p; | |
157 | const uint8_t *r; | |
158 | static const char pset_string[] = "; sprop-parameter-sets="; | |
159 | static const char profile_string[] = "; profile-level-id="; | |
f6fa7814 DM |
160 | uint8_t *extradata = c->extradata; |
161 | int extradata_size = c->extradata_size; | |
162 | uint8_t *tmpbuf = NULL; | |
2ba45a60 DM |
163 | const uint8_t *sps = NULL, *sps_end; |
164 | ||
165 | if (c->extradata_size > MAX_EXTRADATA_SIZE) { | |
166 | av_log(c, AV_LOG_ERROR, "Too much extradata!\n"); | |
167 | ||
168 | return NULL; | |
169 | } | |
170 | if (c->extradata[0] == 1) { | |
f6fa7814 DM |
171 | if (ff_avc_write_annexb_extradata(c->extradata, &extradata, |
172 | &extradata_size)) | |
2ba45a60 | 173 | return NULL; |
f6fa7814 | 174 | tmpbuf = extradata; |
2ba45a60 DM |
175 | } |
176 | ||
177 | psets = av_mallocz(MAX_PSET_SIZE); | |
178 | if (!psets) { | |
179 | av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the parameter sets.\n"); | |
f6fa7814 | 180 | av_free(tmpbuf); |
2ba45a60 DM |
181 | return NULL; |
182 | } | |
183 | memcpy(psets, pset_string, strlen(pset_string)); | |
184 | p = psets + strlen(pset_string); | |
f6fa7814 DM |
185 | r = ff_avc_find_startcode(extradata, extradata + extradata_size); |
186 | while (r < extradata + extradata_size) { | |
2ba45a60 DM |
187 | const uint8_t *r1; |
188 | uint8_t nal_type; | |
189 | ||
190 | while (!*(r++)); | |
191 | nal_type = *r & 0x1f; | |
f6fa7814 | 192 | r1 = ff_avc_find_startcode(r, extradata + extradata_size); |
2ba45a60 DM |
193 | if (nal_type != 7 && nal_type != 8) { /* Only output SPS and PPS */ |
194 | r = r1; | |
195 | continue; | |
196 | } | |
197 | if (p != (psets + strlen(pset_string))) { | |
198 | *p = ','; | |
199 | p++; | |
200 | } | |
201 | if (!sps) { | |
202 | sps = r; | |
203 | sps_end = r1; | |
204 | } | |
205 | if (!av_base64_encode(p, MAX_PSET_SIZE - (p - psets), r, r1 - r)) { | |
206 | av_log(c, AV_LOG_ERROR, "Cannot Base64-encode %"PTRDIFF_SPECIFIER" %"PTRDIFF_SPECIFIER"!\n", MAX_PSET_SIZE - (p - psets), r1 - r); | |
207 | av_free(psets); | |
f6fa7814 | 208 | av_free(tmpbuf); |
2ba45a60 DM |
209 | |
210 | return NULL; | |
211 | } | |
212 | p += strlen(p); | |
213 | r = r1; | |
214 | } | |
215 | if (sps && sps_end - sps >= 4) { | |
216 | memcpy(p, profile_string, strlen(profile_string)); | |
217 | p += strlen(p); | |
218 | ff_data_to_hex(p, sps + 1, 3, 0); | |
219 | p[6] = '\0'; | |
220 | } | |
f6fa7814 DM |
221 | av_free(tmpbuf); |
222 | ||
223 | return psets; | |
224 | } | |
225 | ||
226 | static char *extradata2psets_hevc(AVCodecContext *c) | |
227 | { | |
228 | char *psets; | |
229 | uint8_t *extradata = c->extradata; | |
230 | int extradata_size = c->extradata_size; | |
231 | uint8_t *tmpbuf = NULL; | |
232 | int ps_pos[3] = { 0 }; | |
233 | static const char * const ps_names[3] = { "vps", "sps", "pps" }; | |
234 | int num_arrays, num_nalus; | |
235 | int pos, i, j; | |
236 | ||
237 | // Convert to hvcc format. Since we need to group multiple NALUs of | |
238 | // the same type, and we might need to convert from one format to the | |
239 | // other anyway, we get away with a little less work by using the hvcc | |
240 | // format. | |
241 | if (c->extradata[0] != 1) { | |
242 | AVIOContext *pb; | |
243 | if (avio_open_dyn_buf(&pb) < 0) | |
244 | return NULL; | |
245 | if (ff_isom_write_hvcc(pb, c->extradata, c->extradata_size, 0) < 0) { | |
246 | avio_close_dyn_buf(pb, &tmpbuf); | |
247 | goto err; | |
248 | } | |
249 | extradata_size = avio_close_dyn_buf(pb, &extradata); | |
250 | tmpbuf = extradata; | |
251 | } | |
252 | ||
253 | if (extradata_size < 23) | |
254 | goto err; | |
255 | ||
256 | num_arrays = extradata[22]; | |
257 | pos = 23; | |
258 | for (i = 0; i < num_arrays; i++) { | |
259 | int num_nalus, nalu_type; | |
260 | if (pos + 3 > extradata_size) | |
261 | goto err; | |
262 | nalu_type = extradata[pos] & 0x3f; | |
263 | // Not including libavcodec/hevc.h to avoid confusion between | |
264 | // NAL_* with the same name for both H264 and HEVC. | |
265 | if (nalu_type == 32) // VPS | |
266 | ps_pos[0] = pos; | |
267 | else if (nalu_type == 33) // SPS | |
268 | ps_pos[1] = pos; | |
269 | else if (nalu_type == 34) // PPS | |
270 | ps_pos[2] = pos; | |
271 | num_nalus = AV_RB16(&extradata[pos + 1]); | |
272 | pos += 3; | |
273 | for (j = 0; j < num_nalus; j++) { | |
274 | int len; | |
275 | if (pos + 2 > extradata_size) | |
276 | goto err; | |
277 | len = AV_RB16(&extradata[pos]); | |
278 | pos += 2; | |
279 | if (pos + len > extradata_size) | |
280 | goto err; | |
281 | pos += len; | |
282 | } | |
283 | } | |
284 | if (!ps_pos[0] || !ps_pos[1] || !ps_pos[2]) | |
285 | goto err; | |
286 | ||
287 | psets = av_mallocz(MAX_PSET_SIZE); | |
288 | if (!psets) | |
289 | goto err; | |
290 | psets[0] = '\0'; | |
291 | ||
292 | for (i = 0; i < 3; i++) { | |
293 | pos = ps_pos[i]; | |
294 | ||
295 | if (i > 0) | |
296 | av_strlcat(psets, "; ", MAX_PSET_SIZE); | |
297 | av_strlcatf(psets, MAX_PSET_SIZE, "sprop-%s=", ps_names[i]); | |
298 | ||
299 | // Skipping boundary checks in the input here; we've already traversed | |
300 | // the whole hvcc structure above without issues | |
301 | num_nalus = AV_RB16(&extradata[pos + 1]); | |
302 | pos += 3; | |
303 | for (j = 0; j < num_nalus; j++) { | |
304 | int len = AV_RB16(&extradata[pos]); | |
305 | int strpos; | |
306 | pos += 2; | |
307 | if (j > 0) | |
308 | av_strlcat(psets, ",", MAX_PSET_SIZE); | |
309 | strpos = strlen(psets); | |
310 | if (!av_base64_encode(psets + strpos, MAX_PSET_SIZE - strpos, | |
311 | &extradata[pos], len)) { | |
312 | av_free(psets); | |
313 | goto err; | |
314 | } | |
315 | pos += len; | |
316 | } | |
2ba45a60 | 317 | } |
f6fa7814 | 318 | av_free(tmpbuf); |
2ba45a60 DM |
319 | |
320 | return psets; | |
f6fa7814 DM |
321 | |
322 | err: | |
323 | av_free(tmpbuf); | |
324 | return NULL; | |
2ba45a60 DM |
325 | } |
326 | ||
327 | static char *extradata2config(AVCodecContext *c) | |
328 | { | |
329 | char *config; | |
330 | ||
331 | if (c->extradata_size > MAX_EXTRADATA_SIZE) { | |
332 | av_log(c, AV_LOG_ERROR, "Too much extradata!\n"); | |
333 | ||
334 | return NULL; | |
335 | } | |
336 | config = av_malloc(10 + c->extradata_size * 2); | |
337 | if (!config) { | |
338 | av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
339 | return NULL; | |
340 | } | |
341 | memcpy(config, "; config=", 9); | |
342 | ff_data_to_hex(config + 9, c->extradata, c->extradata_size, 0); | |
343 | config[9 + c->extradata_size * 2] = 0; | |
344 | ||
345 | return config; | |
346 | } | |
347 | ||
348 | static char *xiph_extradata2config(AVCodecContext *c) | |
349 | { | |
350 | char *config, *encoded_config; | |
351 | uint8_t *header_start[3]; | |
352 | int headers_len, header_len[3], config_len; | |
353 | int first_header_size; | |
354 | ||
355 | switch (c->codec_id) { | |
356 | case AV_CODEC_ID_THEORA: | |
357 | first_header_size = 42; | |
358 | break; | |
359 | case AV_CODEC_ID_VORBIS: | |
360 | first_header_size = 30; | |
361 | break; | |
362 | default: | |
363 | av_log(c, AV_LOG_ERROR, "Unsupported Xiph codec ID\n"); | |
364 | return NULL; | |
365 | } | |
366 | ||
367 | if (avpriv_split_xiph_headers(c->extradata, c->extradata_size, | |
368 | first_header_size, header_start, | |
369 | header_len) < 0) { | |
370 | av_log(c, AV_LOG_ERROR, "Extradata corrupt.\n"); | |
371 | return NULL; | |
372 | } | |
373 | ||
374 | headers_len = header_len[0] + header_len[2]; | |
375 | config_len = 4 + // count | |
376 | 3 + // ident | |
377 | 2 + // packet size | |
378 | 1 + // header count | |
379 | 2 + // header size | |
380 | headers_len; // and the rest | |
381 | ||
382 | config = av_malloc(config_len); | |
383 | if (!config) | |
384 | goto xiph_fail; | |
385 | ||
386 | encoded_config = av_malloc(AV_BASE64_SIZE(config_len)); | |
387 | if (!encoded_config) { | |
388 | av_free(config); | |
389 | goto xiph_fail; | |
390 | } | |
391 | ||
392 | config[0] = config[1] = config[2] = 0; | |
393 | config[3] = 1; | |
394 | config[4] = (RTP_XIPH_IDENT >> 16) & 0xff; | |
395 | config[5] = (RTP_XIPH_IDENT >> 8) & 0xff; | |
396 | config[6] = (RTP_XIPH_IDENT ) & 0xff; | |
397 | config[7] = (headers_len >> 8) & 0xff; | |
398 | config[8] = headers_len & 0xff; | |
399 | config[9] = 2; | |
400 | config[10] = header_len[0]; | |
401 | config[11] = 0; // size of comment header; nonexistent | |
402 | memcpy(config + 12, header_start[0], header_len[0]); | |
403 | memcpy(config + 12 + header_len[0], header_start[2], header_len[2]); | |
404 | ||
405 | av_base64_encode(encoded_config, AV_BASE64_SIZE(config_len), | |
406 | config, config_len); | |
407 | av_free(config); | |
408 | ||
409 | return encoded_config; | |
410 | ||
411 | xiph_fail: | |
412 | av_log(c, AV_LOG_ERROR, | |
413 | "Not enough memory for configuration string\n"); | |
414 | return NULL; | |
415 | } | |
416 | ||
417 | static int latm_context2profilelevel(AVCodecContext *c) | |
418 | { | |
419 | /* MP4A-LATM | |
420 | * The RTP payload format specification is described in RFC 3016 | |
421 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | |
422 | ||
423 | int profile_level = 0x2B; | |
424 | ||
425 | /* TODO: AAC Profile only supports AAC LC Object Type. | |
426 | * Different Object Types should implement different Profile Levels */ | |
427 | ||
428 | if (c->sample_rate <= 24000) { | |
429 | if (c->channels <= 2) | |
430 | profile_level = 0x28; // AAC Profile, Level 1 | |
431 | } else if (c->sample_rate <= 48000) { | |
432 | if (c->channels <= 2) { | |
433 | profile_level = 0x29; // AAC Profile, Level 2 | |
434 | } else if (c->channels <= 5) { | |
435 | profile_level = 0x2A; // AAC Profile, Level 4 | |
436 | } | |
437 | } else if (c->sample_rate <= 96000) { | |
438 | if (c->channels <= 5) { | |
439 | profile_level = 0x2B; // AAC Profile, Level 5 | |
440 | } | |
441 | } | |
442 | ||
443 | return profile_level; | |
444 | } | |
445 | ||
446 | static char *latm_context2config(AVCodecContext *c) | |
447 | { | |
448 | /* MP4A-LATM | |
449 | * The RTP payload format specification is described in RFC 3016 | |
450 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | |
451 | ||
452 | uint8_t config_byte[6]; | |
453 | int rate_index; | |
454 | char *config; | |
455 | ||
456 | for (rate_index = 0; rate_index < 16; rate_index++) | |
457 | if (avpriv_mpeg4audio_sample_rates[rate_index] == c->sample_rate) | |
458 | break; | |
459 | if (rate_index == 16) { | |
460 | av_log(c, AV_LOG_ERROR, "Unsupported sample rate\n"); | |
461 | return NULL; | |
462 | } | |
463 | ||
464 | config_byte[0] = 0x40; | |
465 | config_byte[1] = 0; | |
466 | config_byte[2] = 0x20 | rate_index; | |
467 | config_byte[3] = c->channels << 4; | |
468 | config_byte[4] = 0x3f; | |
469 | config_byte[5] = 0xc0; | |
470 | ||
471 | config = av_malloc(6*2+1); | |
472 | if (!config) { | |
473 | av_log(c, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
474 | return NULL; | |
475 | } | |
476 | ff_data_to_hex(config, config_byte, 6, 1); | |
477 | config[12] = 0; | |
478 | ||
479 | return config; | |
480 | } | |
481 | ||
482 | static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c, int payload_type, AVFormatContext *fmt) | |
483 | { | |
484 | char *config = NULL; | |
485 | ||
486 | switch (c->codec_id) { | |
487 | case AV_CODEC_ID_H264: { | |
488 | int mode = 1; | |
489 | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
490 | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "h264_mode0")) | |
491 | mode = 0; | |
492 | if (c->extradata_size) { | |
493 | config = extradata2psets(c); | |
494 | } | |
495 | av_strlcatf(buff, size, "a=rtpmap:%d H264/90000\r\n" | |
496 | "a=fmtp:%d packetization-mode=%d%s\r\n", | |
497 | payload_type, | |
498 | payload_type, mode, config ? config : ""); | |
499 | break; | |
500 | } | |
501 | case AV_CODEC_ID_H261: | |
502 | { | |
503 | const char *pic_fmt = NULL; | |
504 | /* only QCIF and CIF are specified as supported in RFC 4587 */ | |
505 | if (c->width == 176 && c->height == 144) | |
506 | pic_fmt = "QCIF=1"; | |
507 | if (c->width == 352 && c->height == 288) | |
508 | pic_fmt = "CIF=1"; | |
509 | av_strlcatf(buff, size, "a=rtpmap:%d H261/90000\r\n", payload_type); | |
510 | if (pic_fmt) | |
511 | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", payload_type, pic_fmt); | |
512 | break; | |
513 | } | |
514 | case AV_CODEC_ID_H263: | |
515 | case AV_CODEC_ID_H263P: | |
516 | /* a=framesize is required by 3GPP TS 26.234 (PSS). It | |
517 | * actually specifies the maximum video size, but we only know | |
518 | * the current size. This is required for playback on Android | |
519 | * stagefright and on Samsung bada. */ | |
520 | if (!fmt || !fmt->oformat->priv_class || | |
521 | !av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190") || | |
522 | c->codec_id == AV_CODEC_ID_H263P) | |
523 | av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n" | |
524 | "a=framesize:%d %d-%d\r\n", | |
525 | payload_type, | |
526 | payload_type, c->width, c->height); | |
527 | break; | |
f6fa7814 DM |
528 | case AV_CODEC_ID_HEVC: |
529 | if (c->extradata_size) | |
530 | config = extradata2psets_hevc(c); | |
531 | av_strlcatf(buff, size, "a=rtpmap:%d H265/90000\r\n", payload_type); | |
532 | if (config) | |
533 | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", | |
534 | payload_type, config); | |
535 | break; | |
2ba45a60 DM |
536 | case AV_CODEC_ID_MPEG4: |
537 | if (c->extradata_size) { | |
538 | config = extradata2config(c); | |
539 | } | |
540 | av_strlcatf(buff, size, "a=rtpmap:%d MP4V-ES/90000\r\n" | |
541 | "a=fmtp:%d profile-level-id=1%s\r\n", | |
542 | payload_type, | |
543 | payload_type, config ? config : ""); | |
544 | break; | |
545 | case AV_CODEC_ID_AAC: | |
546 | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
547 | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "latm")) { | |
548 | config = latm_context2config(c); | |
549 | if (!config) | |
550 | return NULL; | |
551 | av_strlcatf(buff, size, "a=rtpmap:%d MP4A-LATM/%d/%d\r\n" | |
552 | "a=fmtp:%d profile-level-id=%d;cpresent=0;config=%s\r\n", | |
553 | payload_type, c->sample_rate, c->channels, | |
554 | payload_type, latm_context2profilelevel(c), config); | |
555 | } else { | |
556 | if (c->extradata_size) { | |
557 | config = extradata2config(c); | |
558 | } else { | |
559 | /* FIXME: maybe we can forge config information based on the | |
560 | * codec parameters... | |
561 | */ | |
562 | av_log(c, AV_LOG_ERROR, "AAC with no global headers is currently not supported.\n"); | |
563 | return NULL; | |
564 | } | |
565 | if (!config) { | |
566 | return NULL; | |
567 | } | |
568 | av_strlcatf(buff, size, "a=rtpmap:%d MPEG4-GENERIC/%d/%d\r\n" | |
569 | "a=fmtp:%d profile-level-id=1;" | |
570 | "mode=AAC-hbr;sizelength=13;indexlength=3;" | |
571 | "indexdeltalength=3%s\r\n", | |
572 | payload_type, c->sample_rate, c->channels, | |
573 | payload_type, config); | |
574 | } | |
575 | break; | |
576 | case AV_CODEC_ID_PCM_S16BE: | |
577 | if (payload_type >= RTP_PT_PRIVATE) | |
578 | av_strlcatf(buff, size, "a=rtpmap:%d L16/%d/%d\r\n", | |
579 | payload_type, | |
580 | c->sample_rate, c->channels); | |
581 | break; | |
582 | case AV_CODEC_ID_PCM_MULAW: | |
583 | if (payload_type >= RTP_PT_PRIVATE) | |
584 | av_strlcatf(buff, size, "a=rtpmap:%d PCMU/%d/%d\r\n", | |
585 | payload_type, | |
586 | c->sample_rate, c->channels); | |
587 | break; | |
588 | case AV_CODEC_ID_PCM_ALAW: | |
589 | if (payload_type >= RTP_PT_PRIVATE) | |
590 | av_strlcatf(buff, size, "a=rtpmap:%d PCMA/%d/%d\r\n", | |
591 | payload_type, | |
592 | c->sample_rate, c->channels); | |
593 | break; | |
594 | case AV_CODEC_ID_AMR_NB: | |
595 | av_strlcatf(buff, size, "a=rtpmap:%d AMR/%d/%d\r\n" | |
596 | "a=fmtp:%d octet-align=1\r\n", | |
597 | payload_type, c->sample_rate, c->channels, | |
598 | payload_type); | |
599 | break; | |
600 | case AV_CODEC_ID_AMR_WB: | |
601 | av_strlcatf(buff, size, "a=rtpmap:%d AMR-WB/%d/%d\r\n" | |
602 | "a=fmtp:%d octet-align=1\r\n", | |
603 | payload_type, c->sample_rate, c->channels, | |
604 | payload_type); | |
605 | break; | |
606 | case AV_CODEC_ID_VORBIS: | |
607 | if (c->extradata_size) | |
608 | config = xiph_extradata2config(c); | |
609 | else | |
610 | av_log(c, AV_LOG_ERROR, "Vorbis configuration info missing\n"); | |
611 | if (!config) | |
612 | return NULL; | |
613 | ||
614 | av_strlcatf(buff, size, "a=rtpmap:%d vorbis/%d/%d\r\n" | |
615 | "a=fmtp:%d configuration=%s\r\n", | |
616 | payload_type, c->sample_rate, c->channels, | |
617 | payload_type, config); | |
618 | break; | |
619 | case AV_CODEC_ID_THEORA: { | |
620 | const char *pix_fmt; | |
621 | switch (c->pix_fmt) { | |
622 | case AV_PIX_FMT_YUV420P: | |
623 | pix_fmt = "YCbCr-4:2:0"; | |
624 | break; | |
625 | case AV_PIX_FMT_YUV422P: | |
626 | pix_fmt = "YCbCr-4:2:2"; | |
627 | break; | |
628 | case AV_PIX_FMT_YUV444P: | |
629 | pix_fmt = "YCbCr-4:4:4"; | |
630 | break; | |
631 | default: | |
632 | av_log(c, AV_LOG_ERROR, "Unsupported pixel format.\n"); | |
633 | return NULL; | |
634 | } | |
635 | ||
636 | if (c->extradata_size) | |
637 | config = xiph_extradata2config(c); | |
638 | else | |
639 | av_log(c, AV_LOG_ERROR, "Theora configuation info missing\n"); | |
640 | if (!config) | |
641 | return NULL; | |
642 | ||
643 | av_strlcatf(buff, size, "a=rtpmap:%d theora/90000\r\n" | |
644 | "a=fmtp:%d delivery-method=inline; " | |
645 | "width=%d; height=%d; sampling=%s; " | |
646 | "configuration=%s\r\n", | |
647 | payload_type, payload_type, | |
648 | c->width, c->height, pix_fmt, config); | |
649 | break; | |
650 | } | |
651 | case AV_CODEC_ID_VP8: | |
652 | av_strlcatf(buff, size, "a=rtpmap:%d VP8/90000\r\n", | |
653 | payload_type); | |
654 | break; | |
655 | case AV_CODEC_ID_MJPEG: | |
656 | if (payload_type >= RTP_PT_PRIVATE) | |
657 | av_strlcatf(buff, size, "a=rtpmap:%d JPEG/90000\r\n", | |
658 | payload_type); | |
659 | break; | |
660 | case AV_CODEC_ID_ADPCM_G722: | |
661 | if (payload_type >= RTP_PT_PRIVATE) | |
662 | av_strlcatf(buff, size, "a=rtpmap:%d G722/%d/%d\r\n", | |
663 | payload_type, | |
664 | 8000, c->channels); | |
665 | break; | |
666 | case AV_CODEC_ID_ADPCM_G726: { | |
667 | if (payload_type >= RTP_PT_PRIVATE) | |
668 | av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n", | |
669 | payload_type, | |
670 | c->bits_per_coded_sample*8, | |
671 | c->sample_rate); | |
672 | break; | |
673 | } | |
674 | case AV_CODEC_ID_ILBC: | |
675 | av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n" | |
676 | "a=fmtp:%d mode=%d\r\n", | |
677 | payload_type, c->sample_rate, | |
678 | payload_type, c->block_align == 38 ? 20 : 30); | |
679 | break; | |
680 | case AV_CODEC_ID_SPEEX: | |
681 | av_strlcatf(buff, size, "a=rtpmap:%d speex/%d\r\n", | |
682 | payload_type, c->sample_rate); | |
683 | if (c->codec) { | |
684 | const char *mode; | |
685 | uint64_t vad_option; | |
686 | ||
687 | if (c->flags & CODEC_FLAG_QSCALE) | |
688 | mode = "on"; | |
689 | else if (!av_opt_get_int(c, "vad", AV_OPT_FLAG_ENCODING_PARAM, &vad_option) && vad_option) | |
690 | mode = "vad"; | |
691 | else | |
692 | mode = "off"; | |
693 | ||
694 | av_strlcatf(buff, size, "a=fmtp:%d vbr=%s\r\n", | |
695 | payload_type, mode); | |
696 | } | |
697 | break; | |
698 | case AV_CODEC_ID_OPUS: | |
f6fa7814 DM |
699 | /* The opus RTP draft says that all opus streams MUST be declared |
700 | as stereo, to avoid negotiation failures. The actual number of | |
701 | channels can change on a packet-by-packet basis. The number of | |
702 | channels a receiver prefers to receive or a sender plans to send | |
703 | can be declared via fmtp parameters (both default to mono), but | |
704 | receivers MUST be able to receive and process stereo packets. */ | |
705 | av_strlcatf(buff, size, "a=rtpmap:%d opus/48000/2\r\n", | |
2ba45a60 | 706 | payload_type); |
f6fa7814 DM |
707 | if (c->channels == 2) { |
708 | av_strlcatf(buff, size, "a=fmtp:%d sprop-stereo:1\r\n", | |
709 | payload_type); | |
710 | } | |
2ba45a60 DM |
711 | break; |
712 | default: | |
713 | /* Nothing special to do here... */ | |
714 | break; | |
715 | } | |
716 | ||
717 | av_free(config); | |
718 | ||
719 | return buff; | |
720 | } | |
721 | ||
722 | void ff_sdp_write_media(char *buff, int size, AVStream *st, int idx, | |
723 | const char *dest_addr, const char *dest_type, | |
724 | int port, int ttl, AVFormatContext *fmt) | |
725 | { | |
726 | AVCodecContext *c = st->codec; | |
727 | const char *type; | |
728 | int payload_type; | |
729 | ||
730 | payload_type = ff_rtp_get_payload_type(fmt, c, idx); | |
731 | ||
732 | switch (c->codec_type) { | |
733 | case AVMEDIA_TYPE_VIDEO : type = "video" ; break; | |
734 | case AVMEDIA_TYPE_AUDIO : type = "audio" ; break; | |
735 | case AVMEDIA_TYPE_SUBTITLE: type = "text" ; break; | |
736 | default : type = "application"; break; | |
737 | } | |
738 | ||
739 | av_strlcatf(buff, size, "m=%s %d RTP/AVP %d\r\n", type, port, payload_type); | |
740 | sdp_write_address(buff, size, dest_addr, dest_type, ttl); | |
741 | if (c->bit_rate) { | |
742 | av_strlcatf(buff, size, "b=AS:%d\r\n", c->bit_rate / 1000); | |
743 | } | |
744 | ||
745 | sdp_write_media_attributes(buff, size, c, payload_type, fmt); | |
746 | } | |
747 | ||
748 | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | |
749 | { | |
750 | AVDictionaryEntry *title = av_dict_get(ac[0]->metadata, "title", NULL, 0); | |
751 | struct sdp_session_level s = { 0 }; | |
752 | int i, j, port, ttl, is_multicast, index = 0; | |
753 | char dst[32], dst_type[5]; | |
754 | ||
755 | memset(buf, 0, size); | |
756 | s.user = "-"; | |
757 | s.src_addr = "127.0.0.1"; /* FIXME: Properly set this */ | |
758 | s.src_type = "IP4"; | |
759 | s.name = title ? title->value : "No Name"; | |
760 | ||
761 | port = 0; | |
762 | ttl = 0; | |
763 | if (n_files == 1) { | |
764 | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[0]->filename); | |
765 | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
766 | sizeof(dst_type)); | |
767 | if (!is_multicast) | |
768 | ttl = 0; | |
769 | if (dst[0]) { | |
770 | s.dst_addr = dst; | |
771 | s.dst_type = dst_type; | |
772 | s.ttl = ttl; | |
773 | if (!strcmp(dst_type, "IP6")) { | |
774 | s.src_addr = "::1"; | |
775 | s.src_type = "IP6"; | |
776 | } | |
777 | } | |
778 | } | |
779 | sdp_write_header(buf, size, &s); | |
780 | ||
781 | dst[0] = 0; | |
782 | for (i = 0; i < n_files; i++) { | |
783 | if (n_files != 1) { | |
784 | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[i]->filename); | |
785 | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
786 | sizeof(dst_type)); | |
787 | if (!is_multicast) | |
788 | ttl = 0; | |
789 | } | |
790 | for (j = 0; j < ac[i]->nb_streams; j++) { | |
791 | ff_sdp_write_media(buf, size, ac[i]->streams[j], index++, | |
792 | dst[0] ? dst : NULL, dst_type, | |
793 | (port > 0) ? port + j * 2 : 0, | |
794 | ttl, ac[i]); | |
795 | if (port <= 0) { | |
796 | av_strlcatf(buf, size, | |
797 | "a=control:streamid=%d\r\n", i + j); | |
798 | } | |
799 | if (ac[i]->pb && ac[i]->pb->av_class) { | |
800 | uint8_t *crypto_suite = NULL, *crypto_params = NULL; | |
801 | av_opt_get(ac[i]->pb, "srtp_out_suite", AV_OPT_SEARCH_CHILDREN, | |
802 | &crypto_suite); | |
803 | av_opt_get(ac[i]->pb, "srtp_out_params", AV_OPT_SEARCH_CHILDREN, | |
804 | &crypto_params); | |
805 | if (crypto_suite && crypto_suite[0]) | |
806 | av_strlcatf(buf, size, | |
807 | "a=crypto:1 %s inline:%s\r\n", | |
808 | crypto_suite, crypto_params); | |
809 | av_free(crypto_suite); | |
810 | av_free(crypto_params); | |
811 | } | |
812 | } | |
813 | } | |
814 | ||
815 | return 0; | |
816 | } | |
817 | #else | |
818 | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | |
819 | { | |
820 | return AVERROR(ENOSYS); | |
821 | } | |
822 | ||
823 | void ff_sdp_write_media(char *buff, int size, AVStream *st, int idx, | |
824 | const char *dest_addr, const char *dest_type, | |
825 | int port, int ttl, AVFormatContext *fmt) | |
826 | { | |
827 | } | |
828 | #endif |