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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 "config_components.h" | ||
22 | |||
23 | #include <string.h> | ||
24 | #include "libavutil/avstring.h" | ||
25 | #include "libavutil/base64.h" | ||
26 | #include "libavutil/dict.h" | ||
27 | #include "libavutil/mem.h" | ||
28 | #include "libavutil/parseutils.h" | ||
29 | #include "libavutil/opt.h" | ||
30 | #include "libavcodec/xiph.h" | ||
31 | #include "libavcodec/mpeg4audio.h" | ||
32 | #include "avformat.h" | ||
33 | #include "internal.h" | ||
34 | #include "avc.h" | ||
35 | #include "hevc.h" | ||
36 | #include "rtp.h" | ||
37 | #include "version.h" | ||
38 | #if CONFIG_NETWORK | ||
39 | #include "network.h" | ||
40 | #endif | ||
41 | |||
42 | #if CONFIG_RTP_MUXER | ||
43 | #define MAX_EXTRADATA_SIZE ((INT_MAX - 10) / 2) | ||
44 | |||
45 | struct sdp_session_level { | ||
46 | int sdp_version; /**< protocol version (currently 0) */ | ||
47 | int id; /**< session ID */ | ||
48 | int version; /**< session version */ | ||
49 | int start_time; /**< session start time (NTP time, in seconds), | ||
50 | or 0 in case of permanent session */ | ||
51 | int end_time; /**< session end time (NTP time, in seconds), | ||
52 | or 0 if the session is not bounded */ | ||
53 | int ttl; /**< TTL, in case of multicast stream */ | ||
54 | const char *user; /**< username of the session's creator */ | ||
55 | const char *src_addr; /**< IP address of the machine from which the session was created */ | ||
56 | const char *src_type; /**< address type of src_addr */ | ||
57 | const char *dst_addr; /**< destination IP address (can be multicast) */ | ||
58 | const char *dst_type; /**< destination IP address type */ | ||
59 | const char *name; /**< session name (can be an empty string) */ | ||
60 | }; | ||
61 | |||
62 | 2 | static void sdp_write_address(char *buff, int size, const char *dest_addr, | |
63 | const char *dest_type, int ttl) | ||
64 | { | ||
65 |
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2 | if (dest_addr) { |
66 | ✗ | if (!dest_type) | |
67 | ✗ | dest_type = "IP4"; | |
68 | ✗ | if (ttl > 0 && !strcmp(dest_type, "IP4")) { | |
69 | /* The TTL should only be specified for IPv4 multicast addresses, | ||
70 | * not for IPv6. */ | ||
71 | ✗ | av_strlcatf(buff, size, "c=IN %s %s/%d\r\n", dest_type, dest_addr, ttl); | |
72 | } else { | ||
73 | ✗ | av_strlcatf(buff, size, "c=IN %s %s\r\n", dest_type, dest_addr); | |
74 | } | ||
75 | } | ||
76 | 2 | } | |
77 | |||
78 | ✗ | static void sdp_write_header(char *buff, int size, struct sdp_session_level *s) | |
79 | { | ||
80 | ✗ | av_strlcatf(buff, size, "v=%d\r\n" | |
81 | "o=- %d %d IN %s %s\r\n" | ||
82 | "s=%s\r\n", | ||
83 | s->sdp_version, | ||
84 | s->id, s->version, s->src_type, s->src_addr, | ||
85 | s->name); | ||
86 | ✗ | sdp_write_address(buff, size, s->dst_addr, s->dst_type, s->ttl); | |
87 | ✗ | av_strlcatf(buff, size, "t=%d %d\r\n" | |
88 | "a=tool:libavformat " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\r\n", | ||
89 | s->start_time, s->end_time); | ||
90 | ✗ | } | |
91 | |||
92 | #if CONFIG_NETWORK | ||
93 | ✗ | static int resolve_destination(char *dest_addr, int size, char *type, | |
94 | int type_size) | ||
95 | { | ||
96 | ✗ | struct addrinfo hints = { 0 }, *ai; | |
97 | int is_multicast; | ||
98 | |||
99 | ✗ | av_strlcpy(type, "IP4", type_size); | |
100 | ✗ | if (!dest_addr[0]) | |
101 | ✗ | return 0; | |
102 | |||
103 | /* Resolve the destination, since it must be written | ||
104 | * as a numeric IP address in the SDP. */ | ||
105 | |||
106 | ✗ | if (getaddrinfo(dest_addr, NULL, &hints, &ai)) | |
107 | ✗ | return 0; | |
108 | ✗ | getnameinfo(ai->ai_addr, ai->ai_addrlen, dest_addr, size, | |
109 | NULL, 0, NI_NUMERICHOST); | ||
110 | #ifdef AF_INET6 | ||
111 | ✗ | if (ai->ai_family == AF_INET6) | |
112 | ✗ | av_strlcpy(type, "IP6", type_size); | |
113 | #endif | ||
114 | ✗ | is_multicast = ff_is_multicast_address(ai->ai_addr); | |
115 | ✗ | freeaddrinfo(ai); | |
116 | ✗ | return is_multicast; | |
117 | } | ||
118 | #else | ||
119 | static int resolve_destination(char *dest_addr, int size, char *type, | ||
120 | int type_size) | ||
121 | { | ||
122 | return 0; | ||
123 | } | ||
124 | #endif | ||
125 | |||
126 | ✗ | static int sdp_get_address(char *dest_addr, int size, int *ttl, const char *url) | |
127 | { | ||
128 | int port; | ||
129 | const char *p; | ||
130 | char proto[32]; | ||
131 | |||
132 | ✗ | av_url_split(proto, sizeof(proto), NULL, 0, dest_addr, size, &port, NULL, 0, url); | |
133 | |||
134 | ✗ | *ttl = 0; | |
135 | |||
136 | ✗ | if (strcmp(proto, "rtp") && strcmp(proto, "srtp")) { | |
137 | /* The url isn't for the actual rtp sessions, | ||
138 | * don't parse out anything else than the destination. | ||
139 | */ | ||
140 | ✗ | return 0; | |
141 | } | ||
142 | |||
143 | ✗ | p = strchr(url, '?'); | |
144 | ✗ | if (p) { | |
145 | char buff[64]; | ||
146 | |||
147 | ✗ | if (av_find_info_tag(buff, sizeof(buff), "ttl", p)) { | |
148 | ✗ | *ttl = strtol(buff, NULL, 10); | |
149 | } else { | ||
150 | ✗ | *ttl = 5; | |
151 | } | ||
152 | } | ||
153 | |||
154 | ✗ | return port; | |
155 | } | ||
156 | |||
157 | #define MAX_PSET_SIZE 1024 | ||
158 | ✗ | static int extradata2psets(AVFormatContext *s, const AVCodecParameters *par, | |
159 | char **out) | ||
160 | { | ||
161 | char *psets, *p; | ||
162 | const uint8_t *r; | ||
163 | static const char pset_string[] = "; sprop-parameter-sets="; | ||
164 | static const char profile_string[] = "; profile-level-id="; | ||
165 | ✗ | uint8_t *extradata = par->extradata; | |
166 | ✗ | int extradata_size = par->extradata_size; | |
167 | ✗ | uint8_t *tmpbuf = NULL; | |
168 | ✗ | const uint8_t *sps = NULL, *sps_end; | |
169 | |||
170 | ✗ | *out = NULL; | |
171 | |||
172 | ✗ | if (par->extradata_size > MAX_EXTRADATA_SIZE) { | |
173 | ✗ | av_log(s, AV_LOG_ERROR, "Too much extradata!\n"); | |
174 | ✗ | return AVERROR_INVALIDDATA; | |
175 | } | ||
176 | ✗ | if (par->extradata[0] == 1) { | |
177 | ✗ | int ret = ff_avc_write_annexb_extradata(par->extradata, &extradata, | |
178 | &extradata_size); | ||
179 | ✗ | if (ret < 0) | |
180 | ✗ | return ret; | |
181 | |||
182 | ✗ | tmpbuf = extradata; | |
183 | } | ||
184 | |||
185 | ✗ | psets = av_mallocz(MAX_PSET_SIZE); | |
186 | ✗ | if (!psets) { | |
187 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the parameter sets.\n"); | |
188 | ✗ | av_free(tmpbuf); | |
189 | ✗ | return AVERROR(ENOMEM); | |
190 | } | ||
191 | ✗ | memcpy(psets, pset_string, strlen(pset_string)); | |
192 | ✗ | p = psets + strlen(pset_string); | |
193 | ✗ | r = ff_avc_find_startcode(extradata, extradata + extradata_size); | |
194 | ✗ | while (r < extradata + extradata_size) { | |
195 | const uint8_t *r1; | ||
196 | uint8_t nal_type; | ||
197 | |||
198 | ✗ | while (!*(r++)); | |
199 | ✗ | nal_type = *r & 0x1f; | |
200 | ✗ | r1 = ff_avc_find_startcode(r, extradata + extradata_size); | |
201 | ✗ | if (nal_type != 7 && nal_type != 8) { /* Only output SPS and PPS */ | |
202 | ✗ | r = r1; | |
203 | ✗ | continue; | |
204 | } | ||
205 | ✗ | if (p != (psets + strlen(pset_string))) { | |
206 | ✗ | *p = ','; | |
207 | ✗ | p++; | |
208 | } | ||
209 | ✗ | if (!sps) { | |
210 | ✗ | sps = r; | |
211 | ✗ | sps_end = r1; | |
212 | } | ||
213 | ✗ | if (!av_base64_encode(p, MAX_PSET_SIZE - (p - psets), r, r1 - r)) { | |
214 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot Base64-encode %"PTRDIFF_SPECIFIER" %"PTRDIFF_SPECIFIER"!\n", | |
215 | ✗ | MAX_PSET_SIZE - (p - psets), r1 - r); | |
216 | ✗ | av_free(psets); | |
217 | ✗ | av_free(tmpbuf); | |
218 | |||
219 | ✗ | return AVERROR_INVALIDDATA; | |
220 | } | ||
221 | ✗ | p += strlen(p); | |
222 | ✗ | r = r1; | |
223 | } | ||
224 | ✗ | if (sps && sps_end - sps >= 4 && p - psets <= MAX_PSET_SIZE - strlen(profile_string) - 7) { | |
225 | ✗ | memcpy(p, profile_string, strlen(profile_string)); | |
226 | ✗ | p += strlen(p); | |
227 | ✗ | ff_data_to_hex(p, sps + 1, 3, 0); | |
228 | } | ||
229 | ✗ | av_free(tmpbuf); | |
230 | |||
231 | ✗ | *out = psets; | |
232 | ✗ | return 0; | |
233 | } | ||
234 | |||
235 | ✗ | static int extradata2psets_hevc(const AVCodecParameters *par, char **out) | |
236 | { | ||
237 | char *psets; | ||
238 | ✗ | uint8_t *extradata = par->extradata; | |
239 | ✗ | int extradata_size = par->extradata_size; | |
240 | ✗ | uint8_t *tmpbuf = NULL; | |
241 | ✗ | int ps_pos[3] = { 0 }; | |
242 | static const char * const ps_names[3] = { "vps", "sps", "pps" }; | ||
243 | int num_arrays, num_nalus; | ||
244 | ✗ | int pos, i, j, ret = 0; | |
245 | |||
246 | ✗ | *out = NULL; | |
247 | |||
248 | // Convert to hvcc format. Since we need to group multiple NALUs of | ||
249 | // the same type, and we might need to convert from one format to the | ||
250 | // other anyway, we get away with a little less work by using the hvcc | ||
251 | // format. | ||
252 | ✗ | if (par->extradata[0] != 1) { | |
253 | AVIOContext *pb; | ||
254 | |||
255 | ✗ | ret = avio_open_dyn_buf(&pb); | |
256 | ✗ | if (ret < 0) | |
257 | ✗ | return ret; | |
258 | |||
259 | ✗ | ret = ff_isom_write_hvcc(pb, par->extradata, par->extradata_size, 0); | |
260 | ✗ | if (ret < 0) { | |
261 | ✗ | avio_close_dyn_buf(pb, &tmpbuf); | |
262 | ✗ | goto err; | |
263 | } | ||
264 | ✗ | extradata_size = avio_close_dyn_buf(pb, &extradata); | |
265 | ✗ | tmpbuf = extradata; | |
266 | } | ||
267 | |||
268 | ✗ | if (extradata_size < 23) | |
269 | ✗ | goto err; | |
270 | |||
271 | ✗ | num_arrays = extradata[22]; | |
272 | ✗ | pos = 23; | |
273 | ✗ | for (i = 0; i < num_arrays; i++) { | |
274 | int num_nalus, nalu_type; | ||
275 | ✗ | if (pos + 3 > extradata_size) | |
276 | ✗ | goto err; | |
277 | ✗ | nalu_type = extradata[pos] & 0x3f; | |
278 | // Not including libavcodec/hevc.h to avoid confusion between | ||
279 | // NAL_* with the same name for both H.264 and HEVC. | ||
280 | ✗ | if (nalu_type == 32) // VPS | |
281 | ✗ | ps_pos[0] = pos; | |
282 | ✗ | else if (nalu_type == 33) // SPS | |
283 | ✗ | ps_pos[1] = pos; | |
284 | ✗ | else if (nalu_type == 34) // PPS | |
285 | ✗ | ps_pos[2] = pos; | |
286 | ✗ | num_nalus = AV_RB16(&extradata[pos + 1]); | |
287 | ✗ | pos += 3; | |
288 | ✗ | for (j = 0; j < num_nalus; j++) { | |
289 | int len; | ||
290 | ✗ | if (pos + 2 > extradata_size) | |
291 | ✗ | goto err; | |
292 | ✗ | len = AV_RB16(&extradata[pos]); | |
293 | ✗ | pos += 2; | |
294 | ✗ | if (pos + len > extradata_size) | |
295 | ✗ | goto err; | |
296 | ✗ | pos += len; | |
297 | } | ||
298 | } | ||
299 | ✗ | if (!ps_pos[0] || !ps_pos[1] || !ps_pos[2]) | |
300 | ✗ | goto err; | |
301 | |||
302 | ✗ | psets = av_mallocz(MAX_PSET_SIZE); | |
303 | ✗ | if (!psets) { | |
304 | ✗ | ret = AVERROR(ENOMEM); | |
305 | ✗ | goto err; | |
306 | } | ||
307 | |||
308 | ✗ | psets[0] = '\0'; | |
309 | |||
310 | ✗ | for (i = 0; i < 3; i++) { | |
311 | ✗ | pos = ps_pos[i]; | |
312 | |||
313 | ✗ | if (i > 0) | |
314 | ✗ | av_strlcat(psets, "; ", MAX_PSET_SIZE); | |
315 | ✗ | av_strlcatf(psets, MAX_PSET_SIZE, "sprop-%s=", ps_names[i]); | |
316 | |||
317 | // Skipping boundary checks in the input here; we've already traversed | ||
318 | // the whole hvcc structure above without issues | ||
319 | ✗ | num_nalus = AV_RB16(&extradata[pos + 1]); | |
320 | ✗ | pos += 3; | |
321 | ✗ | for (j = 0; j < num_nalus; j++) { | |
322 | ✗ | int len = AV_RB16(&extradata[pos]); | |
323 | int strpos; | ||
324 | ✗ | pos += 2; | |
325 | ✗ | if (j > 0) | |
326 | ✗ | av_strlcat(psets, ",", MAX_PSET_SIZE); | |
327 | ✗ | strpos = strlen(psets); | |
328 | ✗ | if (!av_base64_encode(psets + strpos, MAX_PSET_SIZE - strpos, | |
329 | ✗ | &extradata[pos], len)) { | |
330 | ✗ | av_free(psets); | |
331 | ✗ | goto err; | |
332 | } | ||
333 | ✗ | pos += len; | |
334 | } | ||
335 | } | ||
336 | ✗ | av_free(tmpbuf); | |
337 | |||
338 | ✗ | *out = psets; | |
339 | ✗ | return 0; | |
340 | ✗ | err: | |
341 | ✗ | if (ret >= 0) | |
342 | ✗ | ret = AVERROR_INVALIDDATA; | |
343 | ✗ | av_free(tmpbuf); | |
344 | ✗ | return ret; | |
345 | } | ||
346 | |||
347 | 1 | static int extradata2config(AVFormatContext *s, const AVCodecParameters *par, | |
348 | char **out) | ||
349 | { | ||
350 | char *config; | ||
351 | |||
352 | 1 | *out = NULL; | |
353 | |||
354 |
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1 | if (par->extradata_size > MAX_EXTRADATA_SIZE) { |
355 | ✗ | av_log(s, AV_LOG_ERROR, "Too much extradata!\n"); | |
356 | ✗ | return AVERROR_INVALIDDATA; | |
357 | } | ||
358 | 1 | config = av_malloc(10 + par->extradata_size * 2); | |
359 |
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1 | if (!config) { |
360 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
361 | ✗ | return AVERROR(ENOMEM); | |
362 | } | ||
363 | 1 | memcpy(config, "; config=", 9); | |
364 | 1 | ff_data_to_hex(config + 9, par->extradata, par->extradata_size, 0); | |
365 | |||
366 | 1 | *out = config; | |
367 | 1 | return 0; | |
368 | } | ||
369 | |||
370 | ✗ | static int xiph_extradata2config(AVFormatContext *s, const AVCodecParameters *par, | |
371 | char **out) | ||
372 | { | ||
373 | uint8_t *config; | ||
374 | char *encoded_config; | ||
375 | const uint8_t *header_start[3]; | ||
376 | int headers_len, header_len[3], config_len; | ||
377 | int first_header_size, ret; | ||
378 | |||
379 | ✗ | *out = NULL; | |
380 | |||
381 | ✗ | switch (par->codec_id) { | |
382 | ✗ | case AV_CODEC_ID_THEORA: | |
383 | ✗ | first_header_size = 42; | |
384 | ✗ | break; | |
385 | ✗ | case AV_CODEC_ID_VORBIS: | |
386 | ✗ | first_header_size = 30; | |
387 | ✗ | break; | |
388 | ✗ | default: | |
389 | ✗ | av_log(s, AV_LOG_ERROR, "Unsupported Xiph codec ID\n"); | |
390 | ✗ | return AVERROR(ENOSYS); | |
391 | } | ||
392 | |||
393 | ✗ | ret = avpriv_split_xiph_headers(par->extradata, par->extradata_size, | |
394 | first_header_size, header_start, | ||
395 | header_len); | ||
396 | ✗ | if (ret < 0) { | |
397 | ✗ | av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n"); | |
398 | ✗ | return ret; | |
399 | } | ||
400 | |||
401 | ✗ | headers_len = header_len[0] + header_len[2]; | |
402 | ✗ | config_len = 4 + // count | |
403 | 3 + // ident | ||
404 | 2 + // packet size | ||
405 | 1 + // header count | ||
406 | 2 + // header size | ||
407 | headers_len; // and the rest | ||
408 | |||
409 | ✗ | config = av_malloc(config_len); | |
410 | ✗ | if (!config) | |
411 | ✗ | goto xiph_fail; | |
412 | |||
413 | ✗ | encoded_config = av_malloc(AV_BASE64_SIZE(config_len)); | |
414 | ✗ | if (!encoded_config) { | |
415 | ✗ | av_free(config); | |
416 | ✗ | goto xiph_fail; | |
417 | } | ||
418 | |||
419 | ✗ | config[0] = config[1] = config[2] = 0; | |
420 | ✗ | config[3] = 1; | |
421 | ✗ | config[4] = (RTP_XIPH_IDENT >> 16) & 0xff; | |
422 | ✗ | config[5] = (RTP_XIPH_IDENT >> 8) & 0xff; | |
423 | ✗ | config[6] = (RTP_XIPH_IDENT ) & 0xff; | |
424 | ✗ | config[7] = (headers_len >> 8) & 0xff; | |
425 | ✗ | config[8] = headers_len & 0xff; | |
426 | ✗ | config[9] = 2; | |
427 | ✗ | config[10] = header_len[0]; | |
428 | ✗ | config[11] = 0; // size of comment header; nonexistent | |
429 | ✗ | memcpy(config + 12, header_start[0], header_len[0]); | |
430 | ✗ | memcpy(config + 12 + header_len[0], header_start[2], header_len[2]); | |
431 | |||
432 | ✗ | av_base64_encode(encoded_config, AV_BASE64_SIZE(config_len), | |
433 | config, config_len); | ||
434 | ✗ | av_free(config); | |
435 | |||
436 | ✗ | *out = encoded_config; | |
437 | ✗ | return 0; | |
438 | |||
439 | ✗ | xiph_fail: | |
440 | ✗ | av_log(s, AV_LOG_ERROR, | |
441 | "Not enough memory for configuration string\n"); | ||
442 | ✗ | return AVERROR(ENOMEM); | |
443 | } | ||
444 | |||
445 | ✗ | static int latm_context2profilelevel(const AVCodecParameters *par) | |
446 | { | ||
447 | /* MP4A-LATM | ||
448 | * The RTP payload format specification is described in RFC 3016 | ||
449 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | ||
450 | |||
451 | ✗ | int profile_level = 0x2B; | |
452 | |||
453 | /* TODO: AAC Profile only supports AAC LC Object Type. | ||
454 | * Different Object Types should implement different Profile Levels */ | ||
455 | |||
456 | ✗ | if (par->sample_rate <= 24000) { | |
457 | ✗ | if (par->ch_layout.nb_channels <= 2) | |
458 | ✗ | profile_level = 0x28; // AAC Profile, Level 1 | |
459 | ✗ | } else if (par->sample_rate <= 48000) { | |
460 | ✗ | if (par->ch_layout.nb_channels <= 2) { | |
461 | ✗ | profile_level = 0x29; // AAC Profile, Level 2 | |
462 | ✗ | } else if (par->ch_layout.nb_channels <= 5) { | |
463 | ✗ | profile_level = 0x2A; // AAC Profile, Level 4 | |
464 | } | ||
465 | ✗ | } else if (par->sample_rate <= 96000) { | |
466 | ✗ | if (par->ch_layout.nb_channels <= 5) { | |
467 | ✗ | profile_level = 0x2B; // AAC Profile, Level 5 | |
468 | } | ||
469 | } | ||
470 | |||
471 | ✗ | return profile_level; | |
472 | } | ||
473 | |||
474 | ✗ | static int latm_context2config(AVFormatContext *s, const AVCodecParameters *par, | |
475 | char **out) | ||
476 | { | ||
477 | /* MP4A-LATM | ||
478 | * The RTP payload format specification is described in RFC 3016 | ||
479 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | ||
480 | |||
481 | uint8_t config_byte[6]; | ||
482 | int rate_index; | ||
483 | char *config; | ||
484 | |||
485 | ✗ | *out = NULL; | |
486 | |||
487 | ✗ | for (rate_index = 0; rate_index < 16; rate_index++) | |
488 | ✗ | if (ff_mpeg4audio_sample_rates[rate_index] == par->sample_rate) | |
489 | ✗ | break; | |
490 | ✗ | if (rate_index == 16) { | |
491 | ✗ | av_log(s, AV_LOG_ERROR, "Unsupported sample rate\n"); | |
492 | ✗ | return AVERROR(ENOSYS); | |
493 | } | ||
494 | |||
495 | ✗ | config_byte[0] = 0x40; | |
496 | ✗ | config_byte[1] = 0; | |
497 | ✗ | config_byte[2] = 0x20 | rate_index; | |
498 | ✗ | config_byte[3] = par->ch_layout.nb_channels << 4; | |
499 | ✗ | config_byte[4] = 0x3f; | |
500 | ✗ | config_byte[5] = 0xc0; | |
501 | |||
502 | ✗ | config = av_malloc(6*2+1); | |
503 | ✗ | if (!config) { | |
504 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
505 | ✗ | return AVERROR(ENOMEM); | |
506 | } | ||
507 | ✗ | ff_data_to_hex(config, config_byte, 6, 1); | |
508 | |||
509 | ✗ | *out = config; | |
510 | ✗ | return 0; | |
511 | } | ||
512 | |||
513 | 2 | static int sdp_write_media_attributes(char *buff, int size, const AVStream *st, | |
514 | int payload_type, AVFormatContext *fmt) | ||
515 | { | ||
516 | 2 | char *config = NULL; | |
517 | 2 | const AVCodecParameters *p = st->codecpar; | |
518 | 2 | int ret = 0; | |
519 | |||
520 |
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2 | switch (p->codec_id) { |
521 | ✗ | case AV_CODEC_ID_DIRAC: | |
522 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VC2/90000\r\n", payload_type); | |
523 | ✗ | break; | |
524 | ✗ | case AV_CODEC_ID_H264: { | |
525 | ✗ | int mode = 1; | |
526 | ✗ | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
527 | ✗ | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "h264_mode0")) | |
528 | ✗ | mode = 0; | |
529 | ✗ | if (p->extradata_size) { | |
530 | ✗ | ret = extradata2psets(fmt, p, &config); | |
531 | ✗ | if (ret < 0) | |
532 | ✗ | return ret; | |
533 | } | ||
534 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H264/90000\r\n" | |
535 | "a=fmtp:%d packetization-mode=%d%s\r\n", | ||
536 | payload_type, | ||
537 | ✗ | payload_type, mode, config ? config : ""); | |
538 | ✗ | break; | |
539 | } | ||
540 | ✗ | case AV_CODEC_ID_H261: | |
541 | { | ||
542 | ✗ | const char *pic_fmt = NULL; | |
543 | /* only QCIF and CIF are specified as supported in RFC 4587 */ | ||
544 | ✗ | if (p->width == 176 && p->height == 144) | |
545 | ✗ | pic_fmt = "QCIF=1"; | |
546 | ✗ | else if (p->width == 352 && p->height == 288) | |
547 | ✗ | pic_fmt = "CIF=1"; | |
548 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
549 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H261/90000\r\n", payload_type); | |
550 | ✗ | if (pic_fmt) | |
551 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", payload_type, pic_fmt); | |
552 | ✗ | break; | |
553 | } | ||
554 | ✗ | case AV_CODEC_ID_H263: | |
555 | case AV_CODEC_ID_H263P: | ||
556 | /* a=framesize is required by 3GPP TS 26.234 (PSS). It | ||
557 | * actually specifies the maximum video size, but we only know | ||
558 | * the current size. This is required for playback on Android | ||
559 | * stagefright and on Samsung bada. */ | ||
560 | ✗ | if (!fmt || !fmt->oformat->priv_class || | |
561 | ✗ | !av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190") || | |
562 | ✗ | p->codec_id == AV_CODEC_ID_H263P) | |
563 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n" | |
564 | "a=framesize:%d %d-%d\r\n", | ||
565 | payload_type, | ||
566 | ✗ | payload_type, p->width, p->height); | |
567 | ✗ | break; | |
568 | ✗ | case AV_CODEC_ID_HEVC: | |
569 | ✗ | if (p->extradata_size) { | |
570 | ✗ | ret = extradata2psets_hevc(p, &config); | |
571 | ✗ | if (ret < 0) | |
572 | ✗ | return ret; | |
573 | } | ||
574 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H265/90000\r\n", payload_type); | |
575 | ✗ | if (config) | |
576 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", | |
577 | payload_type, config); | ||
578 | ✗ | break; | |
579 | 1 | case AV_CODEC_ID_MPEG4: | |
580 |
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1 | if (p->extradata_size) { |
581 | 1 | ret = extradata2config(fmt, p, &config); | |
582 |
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1 | if (ret < 0) |
583 | ✗ | return ret; | |
584 | } | ||
585 | 1 | av_strlcatf(buff, size, "a=rtpmap:%d MP4V-ES/90000\r\n" | |
586 | "a=fmtp:%d profile-level-id=1%s\r\n", | ||
587 | payload_type, | ||
588 |
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1 | payload_type, config ? config : ""); |
589 | 1 | break; | |
590 | ✗ | case AV_CODEC_ID_AAC: | |
591 | ✗ | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
592 | ✗ | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "latm")) { | |
593 | ✗ | ret = latm_context2config(fmt, p, &config); | |
594 | ✗ | if (ret < 0) | |
595 | ✗ | return ret; | |
596 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d MP4A-LATM/%d/%d\r\n" | |
597 | "a=fmtp:%d profile-level-id=%d;cpresent=0;config=%s\r\n", | ||
598 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
599 | payload_type, latm_context2profilelevel(p), config); | ||
600 | } else { | ||
601 | ✗ | if (p->extradata_size) { | |
602 | ✗ | ret = extradata2config(fmt, p, &config); | |
603 | ✗ | if (ret < 0) | |
604 | ✗ | return ret; | |
605 | } else { | ||
606 | /* FIXME: maybe we can forge config information based on the | ||
607 | * codec parameters... | ||
608 | */ | ||
609 | ✗ | av_log(fmt, AV_LOG_ERROR, "AAC with no global headers is currently not supported.\n"); | |
610 | ✗ | return AVERROR(ENOSYS); | |
611 | } | ||
612 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d MPEG4-GENERIC/%d/%d\r\n" | |
613 | "a=fmtp:%d profile-level-id=1;" | ||
614 | "mode=AAC-hbr;sizelength=13;indexlength=3;" | ||
615 | "indexdeltalength=3%s\r\n", | ||
616 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
617 | payload_type, config); | ||
618 | } | ||
619 | ✗ | break; | |
620 | ✗ | case AV_CODEC_ID_PCM_S16BE: | |
621 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
622 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d L16/%d/%d\r\n", | |
623 | payload_type, | ||
624 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
625 | ✗ | break; | |
626 | ✗ | case AV_CODEC_ID_PCM_S24BE: | |
627 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
628 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d L24/%d/%d\r\n", | |
629 | payload_type, | ||
630 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
631 | ✗ | break; | |
632 | ✗ | case AV_CODEC_ID_PCM_MULAW: | |
633 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
634 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d PCMU/%d/%d\r\n", | |
635 | payload_type, | ||
636 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
637 | ✗ | break; | |
638 | 1 | case AV_CODEC_ID_PCM_ALAW: | |
639 |
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1 | if (payload_type >= RTP_PT_PRIVATE) |
640 | 1 | av_strlcatf(buff, size, "a=rtpmap:%d PCMA/%d/%d\r\n", | |
641 | payload_type, | ||
642 | 1 | p->sample_rate, p->ch_layout.nb_channels); | |
643 | 1 | break; | |
644 | ✗ | case AV_CODEC_ID_AMR_NB: | |
645 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AMR/%d/%d\r\n" | |
646 | "a=fmtp:%d octet-align=1\r\n", | ||
647 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
648 | payload_type); | ||
649 | ✗ | break; | |
650 | ✗ | case AV_CODEC_ID_AMR_WB: | |
651 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AMR-WB/%d/%d\r\n" | |
652 | "a=fmtp:%d octet-align=1\r\n", | ||
653 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
654 | payload_type); | ||
655 | ✗ | break; | |
656 | ✗ | case AV_CODEC_ID_VORBIS: | |
657 | ✗ | if (p->extradata_size) | |
658 | ✗ | ret = xiph_extradata2config(fmt, p, &config); | |
659 | else { | ||
660 | ✗ | av_log(fmt, AV_LOG_ERROR, "Vorbis configuration info missing\n"); | |
661 | ✗ | ret = AVERROR_INVALIDDATA; | |
662 | } | ||
663 | ✗ | if (ret < 0) | |
664 | ✗ | return ret; | |
665 | |||
666 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d vorbis/%d/%d\r\n" | |
667 | "a=fmtp:%d configuration=%s\r\n", | ||
668 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
669 | payload_type, config); | ||
670 | ✗ | break; | |
671 | ✗ | case AV_CODEC_ID_THEORA: { | |
672 | const char *pix_fmt; | ||
673 | ✗ | switch (p->format) { | |
674 | ✗ | case AV_PIX_FMT_YUV420P: | |
675 | ✗ | pix_fmt = "YCbCr-4:2:0"; | |
676 | ✗ | break; | |
677 | ✗ | case AV_PIX_FMT_YUV422P: | |
678 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
679 | ✗ | break; | |
680 | ✗ | case AV_PIX_FMT_YUV444P: | |
681 | ✗ | pix_fmt = "YCbCr-4:4:4"; | |
682 | ✗ | break; | |
683 | ✗ | default: | |
684 | ✗ | av_log(fmt, AV_LOG_ERROR, "Unsupported pixel format.\n"); | |
685 | ✗ | return AVERROR(ENOSYS); | |
686 | } | ||
687 | |||
688 | ✗ | if (p->extradata_size) | |
689 | ✗ | ret = xiph_extradata2config(fmt, p, &config); | |
690 | else { | ||
691 | ✗ | av_log(fmt, AV_LOG_ERROR, "Theora configuration info missing\n"); | |
692 | ✗ | ret = AVERROR_INVALIDDATA; | |
693 | } | ||
694 | ✗ | if (ret < 0) | |
695 | ✗ | return ret; | |
696 | |||
697 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d theora/90000\r\n" | |
698 | "a=fmtp:%d delivery-method=inline; " | ||
699 | "width=%d; height=%d; sampling=%s; " | ||
700 | "configuration=%s\r\n", | ||
701 | payload_type, payload_type, | ||
702 | ✗ | p->width, p->height, pix_fmt, config); | |
703 | ✗ | break; | |
704 | } | ||
705 | ✗ | case AV_CODEC_ID_BITPACKED: | |
706 | case AV_CODEC_ID_RAWVIDEO: { | ||
707 | const char *pix_fmt; | ||
708 | ✗ | int bit_depth = 8; | |
709 | |||
710 | ✗ | switch (p->format) { | |
711 | ✗ | case AV_PIX_FMT_UYVY422: | |
712 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
713 | ✗ | break; | |
714 | ✗ | case AV_PIX_FMT_YUV422P10: | |
715 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
716 | ✗ | bit_depth = 10; | |
717 | ✗ | break; | |
718 | ✗ | case AV_PIX_FMT_YUV420P: | |
719 | ✗ | pix_fmt = "YCbCr-4:2:0"; | |
720 | ✗ | break; | |
721 | ✗ | case AV_PIX_FMT_RGB24: | |
722 | ✗ | pix_fmt = "RGB"; | |
723 | ✗ | break; | |
724 | ✗ | case AV_PIX_FMT_BGR24: | |
725 | ✗ | pix_fmt = "BGR"; | |
726 | ✗ | break; | |
727 | ✗ | default: | |
728 | ✗ | av_log(fmt, AV_LOG_ERROR, "Unsupported pixel format.\n"); | |
729 | ✗ | return AVERROR(ENOSYS); | |
730 | } | ||
731 | |||
732 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d raw/90000\r\n" | |
733 | "a=fmtp:%d sampling=%s; " | ||
734 | "width=%d; height=%d; " | ||
735 | "depth=%d", | ||
736 | payload_type, payload_type, | ||
737 | ✗ | pix_fmt, p->width, p->height, bit_depth); | |
738 | ✗ | if (p->field_order != AV_FIELD_PROGRESSIVE) | |
739 | ✗ | av_strlcatf(buff, size, "; interlace"); | |
740 | ✗ | av_strlcatf(buff, size, "\r\n"); | |
741 | ✗ | break; | |
742 | } | ||
743 | |||
744 | ✗ | case AV_CODEC_ID_VP8: | |
745 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VP8/90000\r\n", | |
746 | payload_type); | ||
747 | ✗ | break; | |
748 | ✗ | case AV_CODEC_ID_VP9: | |
749 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VP9/90000\r\n", | |
750 | payload_type); | ||
751 | ✗ | break; | |
752 | ✗ | case AV_CODEC_ID_MJPEG: | |
753 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
754 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d JPEG/90000\r\n", | |
755 | payload_type); | ||
756 | ✗ | break; | |
757 | ✗ | case AV_CODEC_ID_ADPCM_G722: | |
758 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
759 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d G722/%d/%d\r\n", | |
760 | payload_type, | ||
761 | ✗ | 8000, p->ch_layout.nb_channels); | |
762 | ✗ | break; | |
763 | ✗ | case AV_CODEC_ID_ADPCM_G726: { | |
764 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
765 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AAL2-G726-%d/%d\r\n", | |
766 | payload_type, | ||
767 | ✗ | p->bits_per_coded_sample*8, | |
768 | ✗ | p->sample_rate); | |
769 | ✗ | break; | |
770 | } | ||
771 | ✗ | case AV_CODEC_ID_ADPCM_G726LE: { | |
772 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
773 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n", | |
774 | payload_type, | ||
775 | ✗ | p->bits_per_coded_sample*8, | |
776 | ✗ | p->sample_rate); | |
777 | ✗ | break; | |
778 | } | ||
779 | ✗ | case AV_CODEC_ID_ILBC: | |
780 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n" | |
781 | "a=fmtp:%d mode=%d\r\n", | ||
782 | ✗ | payload_type, p->sample_rate, | |
783 | ✗ | payload_type, p->block_align == 38 ? 20 : 30); | |
784 | ✗ | break; | |
785 | ✗ | case AV_CODEC_ID_SPEEX: | |
786 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d speex/%d\r\n", | |
787 | ✗ | payload_type, p->sample_rate); | |
788 | ✗ | break; | |
789 | ✗ | case AV_CODEC_ID_OPUS: | |
790 | /* The opus RTP draft says that all opus streams MUST be declared | ||
791 | as stereo, to avoid negotiation failures. The actual number of | ||
792 | channels can change on a packet-by-packet basis. The number of | ||
793 | channels a receiver prefers to receive or a sender plans to send | ||
794 | can be declared via fmtp parameters (both default to mono), but | ||
795 | receivers MUST be able to receive and process stereo packets. */ | ||
796 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d opus/48000/2\r\n", | |
797 | payload_type); | ||
798 | ✗ | if (p->ch_layout.nb_channels == 2) { | |
799 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d sprop-stereo=1\r\n", | |
800 | payload_type); | ||
801 | } | ||
802 | ✗ | break; | |
803 | ✗ | default: | |
804 | /* Nothing special to do here... */ | ||
805 | ✗ | break; | |
806 | } | ||
807 | |||
808 | 2 | av_free(config); | |
809 | |||
810 | 2 | return 0; | |
811 | } | ||
812 | |||
813 | 2 | int ff_sdp_write_media(char *buff, int size, const AVStream *st, int idx, | |
814 | const char *dest_addr, const char *dest_type, | ||
815 | int port, int ttl, AVFormatContext *fmt) | ||
816 | { | ||
817 | 2 | const AVCodecParameters *p = st->codecpar; | |
818 | const char *type; | ||
819 | int payload_type; | ||
820 | |||
821 | 2 | payload_type = ff_rtp_get_payload_type(fmt, st->codecpar, idx); | |
822 | |||
823 |
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2 | switch (p->codec_type) { |
824 | 1 | case AVMEDIA_TYPE_VIDEO : type = "video" ; break; | |
825 | 1 | case AVMEDIA_TYPE_AUDIO : type = "audio" ; break; | |
826 | ✗ | case AVMEDIA_TYPE_SUBTITLE: type = "text" ; break; | |
827 | ✗ | default : type = "application"; break; | |
828 | } | ||
829 | |||
830 | 2 | av_strlcatf(buff, size, "m=%s %d RTP/AVP %d\r\n", type, port, payload_type); | |
831 | 2 | sdp_write_address(buff, size, dest_addr, dest_type, ttl); | |
832 |
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2 | if (p->bit_rate) { |
833 | 2 | av_strlcatf(buff, size, "b=AS:%"PRId64"\r\n", p->bit_rate / 1000); | |
834 | } | ||
835 | |||
836 | 2 | return sdp_write_media_attributes(buff, size, st, payload_type, fmt); | |
837 | } | ||
838 | |||
839 | ✗ | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | |
840 | { | ||
841 | ✗ | AVDictionaryEntry *title = av_dict_get(ac[0]->metadata, "title", NULL, 0); | |
842 | ✗ | struct sdp_session_level s = { 0 }; | |
843 | ✗ | int i, j, port, ttl, is_multicast, index = 0; | |
844 | char dst[32], dst_type[5]; | ||
845 | |||
846 | ✗ | memset(buf, 0, size); | |
847 | ✗ | s.user = "-"; | |
848 | ✗ | s.src_addr = "127.0.0.1"; /* FIXME: Properly set this */ | |
849 | ✗ | s.src_type = "IP4"; | |
850 | ✗ | s.name = title ? title->value : "No Name"; | |
851 | |||
852 | ✗ | port = 0; | |
853 | ✗ | ttl = 0; | |
854 | ✗ | if (n_files == 1) { | |
855 | ✗ | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[0]->url ? ac[0]->url : ""); | |
856 | ✗ | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
857 | sizeof(dst_type)); | ||
858 | ✗ | if (!is_multicast) | |
859 | ✗ | ttl = 0; | |
860 | ✗ | if (dst[0]) { | |
861 | ✗ | s.dst_addr = dst; | |
862 | ✗ | s.dst_type = dst_type; | |
863 | ✗ | s.ttl = ttl; | |
864 | ✗ | if (!strcmp(dst_type, "IP6")) { | |
865 | ✗ | s.src_addr = "::1"; | |
866 | ✗ | s.src_type = "IP6"; | |
867 | } | ||
868 | } | ||
869 | } | ||
870 | ✗ | sdp_write_header(buf, size, &s); | |
871 | |||
872 | ✗ | dst[0] = 0; | |
873 | ✗ | for (i = 0; i < n_files; i++) { | |
874 | ✗ | if (n_files != 1) { | |
875 | ✗ | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[i]->url ? ac[i]->url : ""); | |
876 | ✗ | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
877 | sizeof(dst_type)); | ||
878 | ✗ | if (!is_multicast) | |
879 | ✗ | ttl = 0; | |
880 | } | ||
881 | ✗ | for (j = 0; j < ac[i]->nb_streams; j++) { | |
882 | ✗ | int ret = ff_sdp_write_media(buf, size, ac[i]->streams[j], index++, | |
883 | ✗ | dst[0] ? dst : NULL, dst_type, | |
884 | ✗ | (port > 0) ? port + j * 2 : 0, | |
885 | ✗ | ttl, ac[i]); | |
886 | ✗ | if (ret < 0) | |
887 | ✗ | return ret; | |
888 | |||
889 | ✗ | if (port <= 0) { | |
890 | ✗ | av_strlcatf(buf, size, | |
891 | "a=control:streamid=%d\r\n", i + j); | ||
892 | } | ||
893 | ✗ | if (ac[i]->pb && ac[i]->pb->av_class) { | |
894 | ✗ | uint8_t *crypto_suite = NULL, *crypto_params = NULL; | |
895 | ✗ | av_opt_get(ac[i]->pb, "srtp_out_suite", AV_OPT_SEARCH_CHILDREN, | |
896 | &crypto_suite); | ||
897 | ✗ | av_opt_get(ac[i]->pb, "srtp_out_params", AV_OPT_SEARCH_CHILDREN, | |
898 | &crypto_params); | ||
899 | ✗ | if (crypto_suite && crypto_suite[0]) | |
900 | ✗ | av_strlcatf(buf, size, | |
901 | "a=crypto:1 %s inline:%s\r\n", | ||
902 | crypto_suite, crypto_params); | ||
903 | ✗ | av_free(crypto_suite); | |
904 | ✗ | av_free(crypto_params); | |
905 | } | ||
906 | } | ||
907 | } | ||
908 | |||
909 | ✗ | return 0; | |
910 | } | ||
911 | #else | ||
912 | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | ||
913 | { | ||
914 | return AVERROR(ENOSYS); | ||
915 | } | ||
916 | |||
917 | int ff_sdp_write_media(char *buff, int size, const AVStream *st, int idx, | ||
918 | const char *dest_addr, const char *dest_type, | ||
919 | int port, int ttl, AVFormatContext *fmt) | ||
920 | { | ||
921 | return AVERROR(ENOSYS); | ||
922 | } | ||
923 | #endif | ||
924 |