| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 "nal.h" | ||
| 37 | #include "rtp.h" | ||
| 38 | #include "version.h" | ||
| 39 | #if CONFIG_NETWORK | ||
| 40 | #include "network.h" | ||
| 41 | #endif | ||
| 42 | |||
| 43 | #if CONFIG_RTP_MUXER | ||
| 44 | #define MAX_EXTRADATA_SIZE ((INT_MAX - 10) / 2) | ||
| 45 | |||
| 46 | struct sdp_session_level { | ||
| 47 | int sdp_version; /**< protocol version (currently 0) */ | ||
| 48 | int id; /**< session ID */ | ||
| 49 | int version; /**< session version */ | ||
| 50 | int start_time; /**< session start time (NTP time, in seconds), | ||
| 51 | or 0 in case of permanent session */ | ||
| 52 | int end_time; /**< session end time (NTP time, in seconds), | ||
| 53 | or 0 if the session is not bounded */ | ||
| 54 | int ttl; /**< TTL, in case of multicast stream */ | ||
| 55 | const char *user; /**< username of the session's creator */ | ||
| 56 | const char *src_addr; /**< IP address of the machine from which the session was created */ | ||
| 57 | const char *src_type; /**< address type of src_addr */ | ||
| 58 | const char *dst_addr; /**< destination IP address (can be multicast) */ | ||
| 59 | const char *dst_type; /**< destination IP address type */ | ||
| 60 | const char *name; /**< session name (can be an empty string) */ | ||
| 61 | }; | ||
| 62 | |||
| 63 | 2 | static void sdp_write_address(char *buff, int size, const char *dest_addr, | |
| 64 | const char *dest_type, int ttl) | ||
| 65 | { | ||
| 66 |
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2 | if (dest_addr) { |
| 67 | ✗ | if (!dest_type) | |
| 68 | ✗ | dest_type = "IP4"; | |
| 69 | ✗ | if (ttl > 0 && !strcmp(dest_type, "IP4")) { | |
| 70 | /* The TTL should only be specified for IPv4 multicast addresses, | ||
| 71 | * not for IPv6. */ | ||
| 72 | ✗ | av_strlcatf(buff, size, "c=IN %s %s/%d\r\n", dest_type, dest_addr, ttl); | |
| 73 | } else { | ||
| 74 | ✗ | av_strlcatf(buff, size, "c=IN %s %s\r\n", dest_type, dest_addr); | |
| 75 | } | ||
| 76 | } | ||
| 77 | 2 | } | |
| 78 | |||
| 79 | ✗ | static void sdp_write_header(char *buff, int size, struct sdp_session_level *s) | |
| 80 | { | ||
| 81 | ✗ | av_strlcatf(buff, size, "v=%d\r\n" | |
| 82 | "o=- %d %d IN %s %s\r\n" | ||
| 83 | "s=%s\r\n", | ||
| 84 | s->sdp_version, | ||
| 85 | s->id, s->version, s->src_type, s->src_addr, | ||
| 86 | s->name); | ||
| 87 | ✗ | sdp_write_address(buff, size, s->dst_addr, s->dst_type, s->ttl); | |
| 88 | ✗ | av_strlcatf(buff, size, "t=%d %d\r\n" | |
| 89 | "a=tool:libavformat " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\r\n", | ||
| 90 | s->start_time, s->end_time); | ||
| 91 | ✗ | } | |
| 92 | |||
| 93 | #if CONFIG_NETWORK | ||
| 94 | ✗ | static int resolve_destination(char *dest_addr, int size, char *type, | |
| 95 | int type_size) | ||
| 96 | { | ||
| 97 | ✗ | struct addrinfo hints = { 0 }, *ai; | |
| 98 | int is_multicast; | ||
| 99 | |||
| 100 | ✗ | av_strlcpy(type, "IP4", type_size); | |
| 101 | ✗ | if (!dest_addr[0]) | |
| 102 | ✗ | return 0; | |
| 103 | |||
| 104 | /* Resolve the destination, since it must be written | ||
| 105 | * as a numeric IP address in the SDP. */ | ||
| 106 | |||
| 107 | ✗ | if (getaddrinfo(dest_addr, NULL, &hints, &ai)) | |
| 108 | ✗ | return 0; | |
| 109 | ✗ | getnameinfo(ai->ai_addr, ai->ai_addrlen, dest_addr, size, | |
| 110 | NULL, 0, NI_NUMERICHOST); | ||
| 111 | #ifdef AF_INET6 | ||
| 112 | ✗ | if (ai->ai_family == AF_INET6) | |
| 113 | ✗ | av_strlcpy(type, "IP6", type_size); | |
| 114 | #endif | ||
| 115 | ✗ | is_multicast = ff_is_multicast_address(ai->ai_addr); | |
| 116 | ✗ | freeaddrinfo(ai); | |
| 117 | ✗ | return is_multicast; | |
| 118 | } | ||
| 119 | #else | ||
| 120 | static int resolve_destination(char *dest_addr, int size, char *type, | ||
| 121 | int type_size) | ||
| 122 | { | ||
| 123 | return 0; | ||
| 124 | } | ||
| 125 | #endif | ||
| 126 | |||
| 127 | ✗ | static int sdp_get_address(char *dest_addr, int size, int *ttl, const char *url) | |
| 128 | { | ||
| 129 | int port; | ||
| 130 | const char *p; | ||
| 131 | char proto[32]; | ||
| 132 | |||
| 133 | ✗ | av_url_split(proto, sizeof(proto), NULL, 0, dest_addr, size, &port, NULL, 0, url); | |
| 134 | |||
| 135 | ✗ | *ttl = 0; | |
| 136 | |||
| 137 | ✗ | if (strcmp(proto, "rtp") && strcmp(proto, "srtp")) { | |
| 138 | /* The url isn't for the actual rtp sessions, | ||
| 139 | * don't parse out anything else than the destination. | ||
| 140 | */ | ||
| 141 | ✗ | return 0; | |
| 142 | } | ||
| 143 | |||
| 144 | ✗ | p = strchr(url, '?'); | |
| 145 | ✗ | if (p) { | |
| 146 | char buff[64]; | ||
| 147 | |||
| 148 | ✗ | if (av_find_info_tag(buff, sizeof(buff), "ttl", p)) { | |
| 149 | ✗ | *ttl = strtol(buff, NULL, 10); | |
| 150 | } else { | ||
| 151 | ✗ | *ttl = 5; | |
| 152 | } | ||
| 153 | } | ||
| 154 | |||
| 155 | ✗ | return port; | |
| 156 | } | ||
| 157 | |||
| 158 | #define MAX_PSET_SIZE 1024 | ||
| 159 | ✗ | static int extradata2psets(AVFormatContext *s, const AVCodecParameters *par, | |
| 160 | char **out) | ||
| 161 | { | ||
| 162 | char *psets, *p; | ||
| 163 | const uint8_t *r; | ||
| 164 | static const char pset_string[] = "; sprop-parameter-sets="; | ||
| 165 | static const char profile_string[] = "; profile-level-id="; | ||
| 166 | ✗ | uint8_t *extradata = par->extradata; | |
| 167 | ✗ | int extradata_size = par->extradata_size; | |
| 168 | ✗ | uint8_t *tmpbuf = NULL; | |
| 169 | ✗ | const uint8_t *sps = NULL, *sps_end; | |
| 170 | |||
| 171 | ✗ | *out = NULL; | |
| 172 | |||
| 173 | ✗ | if (par->extradata_size > MAX_EXTRADATA_SIZE) { | |
| 174 | ✗ | av_log(s, AV_LOG_ERROR, "Too much extradata!\n"); | |
| 175 | ✗ | return AVERROR_INVALIDDATA; | |
| 176 | } | ||
| 177 | ✗ | if (par->extradata[0] == 1) { | |
| 178 | ✗ | int ret = ff_avc_write_annexb_extradata(par->extradata, &extradata, | |
| 179 | &extradata_size); | ||
| 180 | ✗ | if (ret < 0) | |
| 181 | ✗ | return ret; | |
| 182 | |||
| 183 | ✗ | tmpbuf = extradata; | |
| 184 | } | ||
| 185 | |||
| 186 | ✗ | psets = av_mallocz(MAX_PSET_SIZE); | |
| 187 | ✗ | if (!psets) { | |
| 188 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the parameter sets.\n"); | |
| 189 | ✗ | av_free(tmpbuf); | |
| 190 | ✗ | return AVERROR(ENOMEM); | |
| 191 | } | ||
| 192 | ✗ | memcpy(psets, pset_string, strlen(pset_string)); | |
| 193 | ✗ | p = psets + strlen(pset_string); | |
| 194 | ✗ | r = ff_nal_find_startcode(extradata, extradata + extradata_size); | |
| 195 | ✗ | while (r < extradata + extradata_size) { | |
| 196 | const uint8_t *r1; | ||
| 197 | uint8_t nal_type; | ||
| 198 | |||
| 199 | ✗ | while (!*(r++)); | |
| 200 | ✗ | nal_type = *r & 0x1f; | |
| 201 | ✗ | r1 = ff_nal_find_startcode(r, extradata + extradata_size); | |
| 202 | ✗ | if (nal_type != 7 && nal_type != 8) { /* Only output SPS and PPS */ | |
| 203 | ✗ | r = r1; | |
| 204 | ✗ | continue; | |
| 205 | } | ||
| 206 | ✗ | if (p != (psets + strlen(pset_string))) { | |
| 207 | ✗ | if (p - psets >= MAX_PSET_SIZE) | |
| 208 | ✗ | goto fail_in_loop; | |
| 209 | ✗ | *p = ','; | |
| 210 | ✗ | p++; | |
| 211 | } | ||
| 212 | ✗ | if (!sps) { | |
| 213 | ✗ | sps = r; | |
| 214 | ✗ | sps_end = r1; | |
| 215 | } | ||
| 216 | ✗ | if (!av_base64_encode(p, MAX_PSET_SIZE - (p - psets), r, r1 - r)) { | |
| 217 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot Base64-encode %"PTRDIFF_SPECIFIER" %"PTRDIFF_SPECIFIER"!\n", | |
| 218 | ✗ | MAX_PSET_SIZE - (p - psets), r1 - r); | |
| 219 | ✗ | fail_in_loop: | |
| 220 | ✗ | av_free(psets); | |
| 221 | ✗ | av_free(tmpbuf); | |
| 222 | |||
| 223 | ✗ | return AVERROR_INVALIDDATA; | |
| 224 | } | ||
| 225 | ✗ | p += strlen(p); | |
| 226 | ✗ | r = r1; | |
| 227 | } | ||
| 228 | ✗ | if (sps && sps_end - sps >= 4 && p - psets <= MAX_PSET_SIZE - strlen(profile_string) - 7) { | |
| 229 | ✗ | memcpy(p, profile_string, strlen(profile_string)); | |
| 230 | ✗ | p += strlen(p); | |
| 231 | ✗ | ff_data_to_hex(p, sps + 1, 3, 0); | |
| 232 | } | ||
| 233 | ✗ | av_free(tmpbuf); | |
| 234 | |||
| 235 | ✗ | *out = psets; | |
| 236 | ✗ | return 0; | |
| 237 | } | ||
| 238 | |||
| 239 | ✗ | static int extradata2psets_hevc(AVFormatContext *fmt, const AVCodecParameters *par, | |
| 240 | char **out) | ||
| 241 | { | ||
| 242 | char *psets; | ||
| 243 | ✗ | uint8_t *extradata = par->extradata; | |
| 244 | ✗ | int extradata_size = par->extradata_size; | |
| 245 | ✗ | uint8_t *tmpbuf = NULL; | |
| 246 | ✗ | int ps_pos[3] = { 0 }; | |
| 247 | static const char * const ps_names[3] = { "vps", "sps", "pps" }; | ||
| 248 | int num_arrays, num_nalus; | ||
| 249 | ✗ | int pos, i, j, ret = 0; | |
| 250 | |||
| 251 | ✗ | *out = NULL; | |
| 252 | |||
| 253 | // Convert to hvcc format. Since we need to group multiple NALUs of | ||
| 254 | // the same type, and we might need to convert from one format to the | ||
| 255 | // other anyway, we get away with a little less work by using the hvcc | ||
| 256 | // format. | ||
| 257 | ✗ | if (par->extradata[0] != 1) { | |
| 258 | AVIOContext *pb; | ||
| 259 | |||
| 260 | ✗ | ret = avio_open_dyn_buf(&pb); | |
| 261 | ✗ | if (ret < 0) | |
| 262 | ✗ | return ret; | |
| 263 | |||
| 264 | ✗ | ret = ff_isom_write_hvcc(pb, par->extradata, par->extradata_size, 0, fmt); | |
| 265 | ✗ | if (ret < 0) { | |
| 266 | ✗ | avio_close_dyn_buf(pb, &tmpbuf); | |
| 267 | ✗ | goto err; | |
| 268 | } | ||
| 269 | ✗ | extradata_size = avio_close_dyn_buf(pb, &extradata); | |
| 270 | ✗ | tmpbuf = extradata; | |
| 271 | } | ||
| 272 | |||
| 273 | ✗ | if (extradata_size < 23) | |
| 274 | ✗ | goto err; | |
| 275 | |||
| 276 | ✗ | num_arrays = extradata[22]; | |
| 277 | ✗ | pos = 23; | |
| 278 | ✗ | for (i = 0; i < num_arrays; i++) { | |
| 279 | int num_nalus, nalu_type; | ||
| 280 | ✗ | if (pos + 3 > extradata_size) | |
| 281 | ✗ | goto err; | |
| 282 | ✗ | nalu_type = extradata[pos] & 0x3f; | |
| 283 | // Not including libavcodec/hevc.h to avoid confusion between | ||
| 284 | // NAL_* with the same name for both H.264 and HEVC. | ||
| 285 | ✗ | if (nalu_type == 32) // VPS | |
| 286 | ✗ | ps_pos[0] = pos; | |
| 287 | ✗ | else if (nalu_type == 33) // SPS | |
| 288 | ✗ | ps_pos[1] = pos; | |
| 289 | ✗ | else if (nalu_type == 34) // PPS | |
| 290 | ✗ | ps_pos[2] = pos; | |
| 291 | ✗ | num_nalus = AV_RB16(&extradata[pos + 1]); | |
| 292 | ✗ | pos += 3; | |
| 293 | ✗ | for (j = 0; j < num_nalus; j++) { | |
| 294 | int len; | ||
| 295 | ✗ | if (pos + 2 > extradata_size) | |
| 296 | ✗ | goto err; | |
| 297 | ✗ | len = AV_RB16(&extradata[pos]); | |
| 298 | ✗ | pos += 2; | |
| 299 | ✗ | if (pos + len > extradata_size) | |
| 300 | ✗ | goto err; | |
| 301 | ✗ | pos += len; | |
| 302 | } | ||
| 303 | } | ||
| 304 | ✗ | if (!ps_pos[0] || !ps_pos[1] || !ps_pos[2]) | |
| 305 | ✗ | goto err; | |
| 306 | |||
| 307 | ✗ | psets = av_mallocz(MAX_PSET_SIZE); | |
| 308 | ✗ | if (!psets) { | |
| 309 | ✗ | ret = AVERROR(ENOMEM); | |
| 310 | ✗ | goto err; | |
| 311 | } | ||
| 312 | |||
| 313 | ✗ | psets[0] = '\0'; | |
| 314 | |||
| 315 | ✗ | for (i = 0; i < 3; i++) { | |
| 316 | ✗ | pos = ps_pos[i]; | |
| 317 | |||
| 318 | ✗ | if (i > 0) | |
| 319 | ✗ | av_strlcat(psets, "; ", MAX_PSET_SIZE); | |
| 320 | ✗ | av_strlcatf(psets, MAX_PSET_SIZE, "sprop-%s=", ps_names[i]); | |
| 321 | |||
| 322 | // Skipping boundary checks in the input here; we've already traversed | ||
| 323 | // the whole hvcc structure above without issues | ||
| 324 | ✗ | num_nalus = AV_RB16(&extradata[pos + 1]); | |
| 325 | ✗ | pos += 3; | |
| 326 | ✗ | for (j = 0; j < num_nalus; j++) { | |
| 327 | ✗ | int len = AV_RB16(&extradata[pos]); | |
| 328 | int strpos; | ||
| 329 | ✗ | pos += 2; | |
| 330 | ✗ | if (j > 0) | |
| 331 | ✗ | av_strlcat(psets, ",", MAX_PSET_SIZE); | |
| 332 | ✗ | strpos = strlen(psets); | |
| 333 | ✗ | if (!av_base64_encode(psets + strpos, MAX_PSET_SIZE - strpos, | |
| 334 | ✗ | &extradata[pos], len)) { | |
| 335 | ✗ | av_free(psets); | |
| 336 | ✗ | goto err; | |
| 337 | } | ||
| 338 | ✗ | pos += len; | |
| 339 | } | ||
| 340 | } | ||
| 341 | ✗ | av_free(tmpbuf); | |
| 342 | |||
| 343 | ✗ | *out = psets; | |
| 344 | ✗ | return 0; | |
| 345 | ✗ | err: | |
| 346 | ✗ | if (ret >= 0) | |
| 347 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 348 | ✗ | av_free(tmpbuf); | |
| 349 | ✗ | return ret; | |
| 350 | } | ||
| 351 | |||
| 352 | 1 | static int extradata2config(AVFormatContext *s, const AVCodecParameters *par, | |
| 353 | char **out) | ||
| 354 | { | ||
| 355 | char *config; | ||
| 356 | |||
| 357 | 1 | *out = NULL; | |
| 358 | |||
| 359 |
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1 | if (par->extradata_size > MAX_EXTRADATA_SIZE) { |
| 360 | ✗ | av_log(s, AV_LOG_ERROR, "Too much extradata!\n"); | |
| 361 | ✗ | return AVERROR_INVALIDDATA; | |
| 362 | } | ||
| 363 | 1 | config = av_malloc(10 + par->extradata_size * 2); | |
| 364 |
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1 | if (!config) { |
| 365 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
| 366 | ✗ | return AVERROR(ENOMEM); | |
| 367 | } | ||
| 368 | 1 | memcpy(config, "; config=", 9); | |
| 369 | 1 | ff_data_to_hex(config + 9, par->extradata, par->extradata_size, 0); | |
| 370 | |||
| 371 | 1 | *out = config; | |
| 372 | 1 | return 0; | |
| 373 | } | ||
| 374 | |||
| 375 | ✗ | static int xiph_extradata2config(AVFormatContext *s, const AVCodecParameters *par, | |
| 376 | char **out) | ||
| 377 | { | ||
| 378 | uint8_t *config; | ||
| 379 | char *encoded_config; | ||
| 380 | const uint8_t *header_start[3]; | ||
| 381 | int headers_len, header_len[3], config_len; | ||
| 382 | int first_header_size, ret; | ||
| 383 | |||
| 384 | ✗ | *out = NULL; | |
| 385 | |||
| 386 | ✗ | switch (par->codec_id) { | |
| 387 | ✗ | case AV_CODEC_ID_THEORA: | |
| 388 | ✗ | first_header_size = 42; | |
| 389 | ✗ | break; | |
| 390 | ✗ | case AV_CODEC_ID_VORBIS: | |
| 391 | ✗ | first_header_size = 30; | |
| 392 | ✗ | break; | |
| 393 | ✗ | default: | |
| 394 | ✗ | av_log(s, AV_LOG_ERROR, "Unsupported Xiph codec ID\n"); | |
| 395 | ✗ | return AVERROR(ENOSYS); | |
| 396 | } | ||
| 397 | |||
| 398 | ✗ | ret = avpriv_split_xiph_headers(par->extradata, par->extradata_size, | |
| 399 | first_header_size, header_start, | ||
| 400 | header_len); | ||
| 401 | ✗ | if (ret < 0) { | |
| 402 | ✗ | av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n"); | |
| 403 | ✗ | return ret; | |
| 404 | } | ||
| 405 | |||
| 406 | ✗ | headers_len = header_len[0] + header_len[2]; | |
| 407 | ✗ | config_len = 4 + // count | |
| 408 | 3 + // ident | ||
| 409 | 2 + // packet size | ||
| 410 | 1 + // header count | ||
| 411 | 2 + // header size | ||
| 412 | headers_len; // and the rest | ||
| 413 | |||
| 414 | ✗ | config = av_malloc(config_len); | |
| 415 | ✗ | if (!config) | |
| 416 | ✗ | goto xiph_fail; | |
| 417 | |||
| 418 | ✗ | encoded_config = av_malloc(AV_BASE64_SIZE(config_len)); | |
| 419 | ✗ | if (!encoded_config) { | |
| 420 | ✗ | av_free(config); | |
| 421 | ✗ | goto xiph_fail; | |
| 422 | } | ||
| 423 | |||
| 424 | ✗ | config[0] = config[1] = config[2] = 0; | |
| 425 | ✗ | config[3] = 1; | |
| 426 | ✗ | config[4] = (RTP_XIPH_IDENT >> 16) & 0xff; | |
| 427 | ✗ | config[5] = (RTP_XIPH_IDENT >> 8) & 0xff; | |
| 428 | ✗ | config[6] = (RTP_XIPH_IDENT ) & 0xff; | |
| 429 | ✗ | config[7] = (headers_len >> 8) & 0xff; | |
| 430 | ✗ | config[8] = headers_len & 0xff; | |
| 431 | ✗ | config[9] = 2; | |
| 432 | ✗ | config[10] = header_len[0]; | |
| 433 | ✗ | config[11] = 0; // size of comment header; nonexistent | |
| 434 | ✗ | memcpy(config + 12, header_start[0], header_len[0]); | |
| 435 | ✗ | memcpy(config + 12 + header_len[0], header_start[2], header_len[2]); | |
| 436 | |||
| 437 | ✗ | av_base64_encode(encoded_config, AV_BASE64_SIZE(config_len), | |
| 438 | config, config_len); | ||
| 439 | ✗ | av_free(config); | |
| 440 | |||
| 441 | ✗ | *out = encoded_config; | |
| 442 | ✗ | return 0; | |
| 443 | |||
| 444 | ✗ | xiph_fail: | |
| 445 | ✗ | av_log(s, AV_LOG_ERROR, | |
| 446 | "Not enough memory for configuration string\n"); | ||
| 447 | ✗ | return AVERROR(ENOMEM); | |
| 448 | } | ||
| 449 | |||
| 450 | ✗ | static int latm_context2profilelevel(const AVCodecParameters *par) | |
| 451 | { | ||
| 452 | /* MP4A-LATM | ||
| 453 | * The RTP payload format specification is described in RFC 3016 | ||
| 454 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | ||
| 455 | |||
| 456 | ✗ | int profile_level = 0x2B; | |
| 457 | |||
| 458 | /* TODO: AAC Profile only supports AAC LC Object Type. | ||
| 459 | * Different Object Types should implement different Profile Levels */ | ||
| 460 | |||
| 461 | ✗ | if (par->sample_rate <= 24000) { | |
| 462 | ✗ | if (par->ch_layout.nb_channels <= 2) | |
| 463 | ✗ | profile_level = 0x28; // AAC Profile, Level 1 | |
| 464 | ✗ | } else if (par->sample_rate <= 48000) { | |
| 465 | ✗ | if (par->ch_layout.nb_channels <= 2) { | |
| 466 | ✗ | profile_level = 0x29; // AAC Profile, Level 2 | |
| 467 | ✗ | } else if (par->ch_layout.nb_channels <= 5) { | |
| 468 | ✗ | profile_level = 0x2A; // AAC Profile, Level 4 | |
| 469 | } | ||
| 470 | ✗ | } else if (par->sample_rate <= 96000) { | |
| 471 | ✗ | if (par->ch_layout.nb_channels <= 5) { | |
| 472 | ✗ | profile_level = 0x2B; // AAC Profile, Level 5 | |
| 473 | } | ||
| 474 | } | ||
| 475 | |||
| 476 | ✗ | return profile_level; | |
| 477 | } | ||
| 478 | |||
| 479 | ✗ | static int latm_context2config(AVFormatContext *s, const AVCodecParameters *par, | |
| 480 | char **out) | ||
| 481 | { | ||
| 482 | /* MP4A-LATM | ||
| 483 | * The RTP payload format specification is described in RFC 3016 | ||
| 484 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | ||
| 485 | |||
| 486 | uint8_t config_byte[6]; | ||
| 487 | int rate_index; | ||
| 488 | char *config; | ||
| 489 | |||
| 490 | ✗ | *out = NULL; | |
| 491 | |||
| 492 | ✗ | for (rate_index = 0; rate_index < 16; rate_index++) | |
| 493 | ✗ | if (ff_mpeg4audio_sample_rates[rate_index] == par->sample_rate) | |
| 494 | ✗ | break; | |
| 495 | ✗ | if (rate_index == 16) { | |
| 496 | ✗ | av_log(s, AV_LOG_ERROR, "Unsupported sample rate\n"); | |
| 497 | ✗ | return AVERROR(ENOSYS); | |
| 498 | } | ||
| 499 | |||
| 500 | ✗ | config_byte[0] = 0x40; | |
| 501 | ✗ | config_byte[1] = 0; | |
| 502 | ✗ | config_byte[2] = 0x20 | rate_index; | |
| 503 | ✗ | config_byte[3] = par->ch_layout.nb_channels << 4; | |
| 504 | ✗ | config_byte[4] = 0x3f; | |
| 505 | ✗ | config_byte[5] = 0xc0; | |
| 506 | |||
| 507 | ✗ | config = av_malloc(6*2+1); | |
| 508 | ✗ | if (!config) { | |
| 509 | ✗ | av_log(s, AV_LOG_ERROR, "Cannot allocate memory for the config info.\n"); | |
| 510 | ✗ | return AVERROR(ENOMEM); | |
| 511 | } | ||
| 512 | ✗ | ff_data_to_hex(config, config_byte, 6, 1); | |
| 513 | |||
| 514 | ✗ | *out = config; | |
| 515 | ✗ | return 0; | |
| 516 | } | ||
| 517 | |||
| 518 | 2 | static int sdp_write_media_attributes(char *buff, int size, const AVStream *st, | |
| 519 | int payload_type, AVFormatContext *fmt) | ||
| 520 | { | ||
| 521 | 2 | char *config = NULL; | |
| 522 | 2 | const AVCodecParameters *p = st->codecpar; | |
| 523 | 2 | int ret = 0; | |
| 524 | |||
| 525 |
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2 | switch (p->codec_id) { |
| 526 | ✗ | case AV_CODEC_ID_DIRAC: | |
| 527 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VC2/90000\r\n", payload_type); | |
| 528 | ✗ | break; | |
| 529 | ✗ | case AV_CODEC_ID_H264: { | |
| 530 | ✗ | int mode = 1; | |
| 531 | ✗ | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
| 532 | ✗ | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "h264_mode0")) | |
| 533 | ✗ | mode = 0; | |
| 534 | ✗ | if (p->extradata_size) { | |
| 535 | ✗ | ret = extradata2psets(fmt, p, &config); | |
| 536 | ✗ | if (ret < 0) | |
| 537 | ✗ | return ret; | |
| 538 | } | ||
| 539 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H264/90000\r\n" | |
| 540 | "a=fmtp:%d packetization-mode=%d%s\r\n", | ||
| 541 | payload_type, | ||
| 542 | ✗ | payload_type, mode, config ? config : ""); | |
| 543 | ✗ | break; | |
| 544 | } | ||
| 545 | ✗ | case AV_CODEC_ID_H261: | |
| 546 | { | ||
| 547 | ✗ | const char *pic_fmt = NULL; | |
| 548 | /* only QCIF and CIF are specified as supported in RFC 4587 */ | ||
| 549 | ✗ | if (p->width == 176 && p->height == 144) | |
| 550 | ✗ | pic_fmt = "QCIF=1"; | |
| 551 | ✗ | else if (p->width == 352 && p->height == 288) | |
| 552 | ✗ | pic_fmt = "CIF=1"; | |
| 553 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 554 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H261/90000\r\n", payload_type); | |
| 555 | ✗ | if (pic_fmt) | |
| 556 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", payload_type, pic_fmt); | |
| 557 | ✗ | break; | |
| 558 | } | ||
| 559 | ✗ | case AV_CODEC_ID_H263: | |
| 560 | case AV_CODEC_ID_H263P: | ||
| 561 | /* a=framesize is required by 3GPP TS 26.234 (PSS). It | ||
| 562 | * actually specifies the maximum video size, but we only know | ||
| 563 | * the current size. This is required for playback on Android | ||
| 564 | * stagefright and on Samsung bada. */ | ||
| 565 | ✗ | if (!fmt || !fmt->oformat->priv_class || | |
| 566 | ✗ | !av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190") || | |
| 567 | ✗ | p->codec_id == AV_CODEC_ID_H263P) | |
| 568 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H263-2000/90000\r\n" | |
| 569 | "a=framesize:%d %d-%d\r\n", | ||
| 570 | payload_type, | ||
| 571 | ✗ | payload_type, p->width, p->height); | |
| 572 | ✗ | break; | |
| 573 | ✗ | case AV_CODEC_ID_HEVC: | |
| 574 | ✗ | if (p->extradata_size) { | |
| 575 | ✗ | ret = extradata2psets_hevc(fmt, p, &config); | |
| 576 | ✗ | if (ret < 0) | |
| 577 | ✗ | return ret; | |
| 578 | } | ||
| 579 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d H265/90000\r\n", payload_type); | |
| 580 | ✗ | if (config) | |
| 581 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", | |
| 582 | payload_type, config); | ||
| 583 | ✗ | break; | |
| 584 | 1 | case AV_CODEC_ID_MPEG4: | |
| 585 |
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1 | if (p->extradata_size) { |
| 586 | 1 | ret = extradata2config(fmt, p, &config); | |
| 587 |
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1 | if (ret < 0) |
| 588 | ✗ | return ret; | |
| 589 | } | ||
| 590 | 1 | av_strlcatf(buff, size, "a=rtpmap:%d MP4V-ES/90000\r\n" | |
| 591 | "a=fmtp:%d profile-level-id=1%s\r\n", | ||
| 592 | payload_type, | ||
| 593 |
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1 | payload_type, config ? config : ""); |
| 594 | 1 | break; | |
| 595 | ✗ | case AV_CODEC_ID_AAC: | |
| 596 | ✗ | if (fmt && fmt->oformat && fmt->oformat->priv_class && | |
| 597 | ✗ | av_opt_flag_is_set(fmt->priv_data, "rtpflags", "latm")) { | |
| 598 | ✗ | ret = latm_context2config(fmt, p, &config); | |
| 599 | ✗ | if (ret < 0) | |
| 600 | ✗ | return ret; | |
| 601 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d MP4A-LATM/%d/%d\r\n" | |
| 602 | "a=fmtp:%d profile-level-id=%d;cpresent=0;config=%s\r\n", | ||
| 603 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
| 604 | payload_type, latm_context2profilelevel(p), config); | ||
| 605 | } else { | ||
| 606 | ✗ | if (p->extradata_size) { | |
| 607 | ✗ | ret = extradata2config(fmt, p, &config); | |
| 608 | ✗ | if (ret < 0) | |
| 609 | ✗ | return ret; | |
| 610 | } else { | ||
| 611 | /* FIXME: maybe we can forge config information based on the | ||
| 612 | * codec parameters... | ||
| 613 | */ | ||
| 614 | ✗ | av_log(fmt, AV_LOG_ERROR, "AAC with no global headers is currently not supported.\n"); | |
| 615 | ✗ | return AVERROR(ENOSYS); | |
| 616 | } | ||
| 617 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d MPEG4-GENERIC/%d/%d\r\n" | |
| 618 | "a=fmtp:%d profile-level-id=1;" | ||
| 619 | "mode=AAC-hbr;sizelength=13;indexlength=3;" | ||
| 620 | "indexdeltalength=3%s\r\n", | ||
| 621 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
| 622 | payload_type, config); | ||
| 623 | } | ||
| 624 | ✗ | break; | |
| 625 | ✗ | case AV_CODEC_ID_PCM_S16BE: | |
| 626 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 627 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d L16/%d/%d\r\n", | |
| 628 | payload_type, | ||
| 629 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
| 630 | ✗ | break; | |
| 631 | ✗ | case AV_CODEC_ID_PCM_S24BE: | |
| 632 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 633 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d L24/%d/%d\r\n", | |
| 634 | payload_type, | ||
| 635 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
| 636 | ✗ | break; | |
| 637 | ✗ | case AV_CODEC_ID_PCM_MULAW: | |
| 638 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 639 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d PCMU/%d/%d\r\n", | |
| 640 | payload_type, | ||
| 641 | ✗ | p->sample_rate, p->ch_layout.nb_channels); | |
| 642 | ✗ | break; | |
| 643 | 1 | case AV_CODEC_ID_PCM_ALAW: | |
| 644 |
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1 | if (payload_type >= RTP_PT_PRIVATE) |
| 645 | 1 | av_strlcatf(buff, size, "a=rtpmap:%d PCMA/%d/%d\r\n", | |
| 646 | payload_type, | ||
| 647 | 1 | p->sample_rate, p->ch_layout.nb_channels); | |
| 648 | 1 | break; | |
| 649 | ✗ | case AV_CODEC_ID_AMR_NB: | |
| 650 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AMR/%d/%d\r\n" | |
| 651 | "a=fmtp:%d octet-align=1\r\n", | ||
| 652 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
| 653 | payload_type); | ||
| 654 | ✗ | break; | |
| 655 | ✗ | case AV_CODEC_ID_AMR_WB: | |
| 656 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AMR-WB/%d/%d\r\n" | |
| 657 | "a=fmtp:%d octet-align=1\r\n", | ||
| 658 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
| 659 | payload_type); | ||
| 660 | ✗ | break; | |
| 661 | ✗ | case AV_CODEC_ID_VORBIS: | |
| 662 | ✗ | if (p->extradata_size) | |
| 663 | ✗ | ret = xiph_extradata2config(fmt, p, &config); | |
| 664 | else { | ||
| 665 | ✗ | av_log(fmt, AV_LOG_ERROR, "Vorbis configuration info missing\n"); | |
| 666 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 667 | } | ||
| 668 | ✗ | if (ret < 0) | |
| 669 | ✗ | return ret; | |
| 670 | |||
| 671 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d vorbis/%d/%d\r\n" | |
| 672 | "a=fmtp:%d configuration=%s\r\n", | ||
| 673 | ✗ | payload_type, p->sample_rate, p->ch_layout.nb_channels, | |
| 674 | payload_type, config); | ||
| 675 | ✗ | break; | |
| 676 | ✗ | case AV_CODEC_ID_THEORA: { | |
| 677 | const char *pix_fmt; | ||
| 678 | ✗ | switch (p->format) { | |
| 679 | ✗ | case AV_PIX_FMT_YUV420P: | |
| 680 | ✗ | pix_fmt = "YCbCr-4:2:0"; | |
| 681 | ✗ | break; | |
| 682 | ✗ | case AV_PIX_FMT_YUV422P: | |
| 683 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
| 684 | ✗ | break; | |
| 685 | ✗ | case AV_PIX_FMT_YUV444P: | |
| 686 | ✗ | pix_fmt = "YCbCr-4:4:4"; | |
| 687 | ✗ | break; | |
| 688 | ✗ | default: | |
| 689 | ✗ | av_log(fmt, AV_LOG_ERROR, "Unsupported pixel format.\n"); | |
| 690 | ✗ | return AVERROR(ENOSYS); | |
| 691 | } | ||
| 692 | |||
| 693 | ✗ | if (p->extradata_size) | |
| 694 | ✗ | ret = xiph_extradata2config(fmt, p, &config); | |
| 695 | else { | ||
| 696 | ✗ | av_log(fmt, AV_LOG_ERROR, "Theora configuration info missing\n"); | |
| 697 | ✗ | ret = AVERROR_INVALIDDATA; | |
| 698 | } | ||
| 699 | ✗ | if (ret < 0) | |
| 700 | ✗ | return ret; | |
| 701 | |||
| 702 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d theora/90000\r\n" | |
| 703 | "a=fmtp:%d delivery-method=inline; " | ||
| 704 | "width=%d; height=%d; sampling=%s; " | ||
| 705 | "configuration=%s\r\n", | ||
| 706 | payload_type, payload_type, | ||
| 707 | ✗ | p->width, p->height, pix_fmt, config); | |
| 708 | ✗ | break; | |
| 709 | } | ||
| 710 | ✗ | case AV_CODEC_ID_BITPACKED: | |
| 711 | case AV_CODEC_ID_RAWVIDEO: { | ||
| 712 | const char *pix_fmt; | ||
| 713 | ✗ | int bit_depth = 8; | |
| 714 | |||
| 715 | ✗ | switch (p->format) { | |
| 716 | ✗ | case AV_PIX_FMT_UYVY422: | |
| 717 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
| 718 | ✗ | break; | |
| 719 | ✗ | case AV_PIX_FMT_YUV422P10: | |
| 720 | ✗ | pix_fmt = "YCbCr-4:2:2"; | |
| 721 | ✗ | bit_depth = 10; | |
| 722 | ✗ | break; | |
| 723 | ✗ | case AV_PIX_FMT_YUV420P: | |
| 724 | ✗ | pix_fmt = "YCbCr-4:2:0"; | |
| 725 | ✗ | break; | |
| 726 | ✗ | case AV_PIX_FMT_RGB24: | |
| 727 | ✗ | pix_fmt = "RGB"; | |
| 728 | ✗ | break; | |
| 729 | ✗ | case AV_PIX_FMT_BGR24: | |
| 730 | ✗ | pix_fmt = "BGR"; | |
| 731 | ✗ | break; | |
| 732 | ✗ | default: | |
| 733 | ✗ | av_log(fmt, AV_LOG_ERROR, "Unsupported pixel format.\n"); | |
| 734 | ✗ | return AVERROR(ENOSYS); | |
| 735 | } | ||
| 736 | |||
| 737 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d raw/90000\r\n" | |
| 738 | "a=fmtp:%d sampling=%s; " | ||
| 739 | "width=%d; height=%d; " | ||
| 740 | "depth=%d", | ||
| 741 | payload_type, payload_type, | ||
| 742 | ✗ | pix_fmt, p->width, p->height, bit_depth); | |
| 743 | ✗ | if (p->field_order != AV_FIELD_PROGRESSIVE) | |
| 744 | ✗ | av_strlcatf(buff, size, "; interlace"); | |
| 745 | ✗ | av_strlcatf(buff, size, "\r\n"); | |
| 746 | ✗ | break; | |
| 747 | } | ||
| 748 | |||
| 749 | ✗ | case AV_CODEC_ID_VP8: | |
| 750 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VP8/90000\r\n", | |
| 751 | payload_type); | ||
| 752 | ✗ | break; | |
| 753 | ✗ | case AV_CODEC_ID_VP9: | |
| 754 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d VP9/90000\r\n", | |
| 755 | payload_type); | ||
| 756 | ✗ | break; | |
| 757 | ✗ | case AV_CODEC_ID_MJPEG: | |
| 758 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 759 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d JPEG/90000\r\n", | |
| 760 | payload_type); | ||
| 761 | ✗ | break; | |
| 762 | ✗ | case AV_CODEC_ID_ADPCM_G722: | |
| 763 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 764 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d G722/%d/%d\r\n", | |
| 765 | payload_type, | ||
| 766 | ✗ | 8000, p->ch_layout.nb_channels); | |
| 767 | ✗ | break; | |
| 768 | ✗ | case AV_CODEC_ID_ADPCM_G726: { | |
| 769 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 770 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d AAL2-G726-%d/%d\r\n", | |
| 771 | payload_type, | ||
| 772 | ✗ | p->bits_per_coded_sample*8, | |
| 773 | ✗ | p->sample_rate); | |
| 774 | ✗ | break; | |
| 775 | } | ||
| 776 | ✗ | case AV_CODEC_ID_ADPCM_G726LE: { | |
| 777 | ✗ | if (payload_type >= RTP_PT_PRIVATE) | |
| 778 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d G726-%d/%d\r\n", | |
| 779 | payload_type, | ||
| 780 | ✗ | p->bits_per_coded_sample*8, | |
| 781 | ✗ | p->sample_rate); | |
| 782 | ✗ | break; | |
| 783 | } | ||
| 784 | ✗ | case AV_CODEC_ID_ILBC: | |
| 785 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n" | |
| 786 | "a=fmtp:%d mode=%d\r\n", | ||
| 787 | ✗ | payload_type, p->sample_rate, | |
| 788 | ✗ | payload_type, p->block_align == 38 ? 20 : 30); | |
| 789 | ✗ | break; | |
| 790 | ✗ | case AV_CODEC_ID_SPEEX: | |
| 791 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d speex/%d\r\n", | |
| 792 | ✗ | payload_type, p->sample_rate); | |
| 793 | ✗ | break; | |
| 794 | ✗ | case AV_CODEC_ID_OPUS: | |
| 795 | /* The opus RTP draft says that all opus streams MUST be declared | ||
| 796 | as stereo, to avoid negotiation failures. The actual number of | ||
| 797 | channels can change on a packet-by-packet basis. The number of | ||
| 798 | channels a receiver prefers to receive or a sender plans to send | ||
| 799 | can be declared via fmtp parameters (both default to mono), but | ||
| 800 | receivers MUST be able to receive and process stereo packets. */ | ||
| 801 | ✗ | av_strlcatf(buff, size, "a=rtpmap:%d opus/48000/2\r\n", | |
| 802 | payload_type); | ||
| 803 | ✗ | if (p->ch_layout.nb_channels == 2) { | |
| 804 | ✗ | av_strlcatf(buff, size, "a=fmtp:%d sprop-stereo=1\r\n", | |
| 805 | payload_type); | ||
| 806 | } | ||
| 807 | ✗ | break; | |
| 808 | ✗ | default: | |
| 809 | /* Nothing special to do here... */ | ||
| 810 | ✗ | break; | |
| 811 | } | ||
| 812 | |||
| 813 | 2 | av_free(config); | |
| 814 | |||
| 815 | 2 | return 0; | |
| 816 | } | ||
| 817 | |||
| 818 | 2 | int ff_sdp_write_media(char *buff, int size, const AVStream *st, int idx, | |
| 819 | const char *dest_addr, const char *dest_type, | ||
| 820 | int port, int ttl, AVFormatContext *fmt) | ||
| 821 | { | ||
| 822 | 2 | const AVCodecParameters *p = st->codecpar; | |
| 823 | const char *type; | ||
| 824 | int payload_type; | ||
| 825 | |||
| 826 | 2 | payload_type = ff_rtp_get_payload_type(fmt, st->codecpar, idx); | |
| 827 | |||
| 828 |
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2 | switch (p->codec_type) { |
| 829 | 1 | case AVMEDIA_TYPE_VIDEO : type = "video" ; break; | |
| 830 | 1 | case AVMEDIA_TYPE_AUDIO : type = "audio" ; break; | |
| 831 | ✗ | case AVMEDIA_TYPE_SUBTITLE: type = "text" ; break; | |
| 832 | ✗ | default : type = "application"; break; | |
| 833 | } | ||
| 834 | |||
| 835 | 2 | av_strlcatf(buff, size, "m=%s %d RTP/AVP %d\r\n", type, port, payload_type); | |
| 836 | 2 | sdp_write_address(buff, size, dest_addr, dest_type, ttl); | |
| 837 |
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2 | if (p->bit_rate) { |
| 838 | 2 | av_strlcatf(buff, size, "b=AS:%"PRId64"\r\n", p->bit_rate / 1000); | |
| 839 | } | ||
| 840 | |||
| 841 | 2 | return sdp_write_media_attributes(buff, size, st, payload_type, fmt); | |
| 842 | } | ||
| 843 | |||
| 844 | ✗ | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | |
| 845 | { | ||
| 846 | ✗ | AVDictionaryEntry *title = av_dict_get(ac[0]->metadata, "title", NULL, 0); | |
| 847 | ✗ | struct sdp_session_level s = { 0 }; | |
| 848 | ✗ | int i, j, port, ttl, is_multicast, index = 0; | |
| 849 | char dst[32], dst_type[5]; | ||
| 850 | |||
| 851 | ✗ | memset(buf, 0, size); | |
| 852 | ✗ | s.user = "-"; | |
| 853 | ✗ | s.src_addr = "127.0.0.1"; /* FIXME: Properly set this */ | |
| 854 | ✗ | s.src_type = "IP4"; | |
| 855 | ✗ | s.name = title ? title->value : "No Name"; | |
| 856 | |||
| 857 | ✗ | port = 0; | |
| 858 | ✗ | ttl = 0; | |
| 859 | ✗ | if (n_files == 1) { | |
| 860 | ✗ | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[0]->url ? ac[0]->url : ""); | |
| 861 | ✗ | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
| 862 | sizeof(dst_type)); | ||
| 863 | ✗ | if (!is_multicast) | |
| 864 | ✗ | ttl = 0; | |
| 865 | ✗ | if (dst[0]) { | |
| 866 | ✗ | s.dst_addr = dst; | |
| 867 | ✗ | s.dst_type = dst_type; | |
| 868 | ✗ | s.ttl = ttl; | |
| 869 | ✗ | if (!strcmp(dst_type, "IP6")) { | |
| 870 | ✗ | s.src_addr = "::1"; | |
| 871 | ✗ | s.src_type = "IP6"; | |
| 872 | } | ||
| 873 | } | ||
| 874 | } | ||
| 875 | ✗ | sdp_write_header(buf, size, &s); | |
| 876 | |||
| 877 | ✗ | dst[0] = 0; | |
| 878 | ✗ | for (i = 0; i < n_files; i++) { | |
| 879 | ✗ | if (n_files != 1) { | |
| 880 | ✗ | port = sdp_get_address(dst, sizeof(dst), &ttl, ac[i]->url ? ac[i]->url : ""); | |
| 881 | ✗ | is_multicast = resolve_destination(dst, sizeof(dst), dst_type, | |
| 882 | sizeof(dst_type)); | ||
| 883 | ✗ | if (!is_multicast) | |
| 884 | ✗ | ttl = 0; | |
| 885 | } | ||
| 886 | ✗ | for (j = 0; j < ac[i]->nb_streams; j++) { | |
| 887 | ✗ | int ret = ff_sdp_write_media(buf, size, ac[i]->streams[j], index++, | |
| 888 | ✗ | dst[0] ? dst : NULL, dst_type, | |
| 889 | ✗ | (port > 0) ? port + j * 2 : 0, | |
| 890 | ✗ | ttl, ac[i]); | |
| 891 | ✗ | if (ret < 0) | |
| 892 | ✗ | return ret; | |
| 893 | |||
| 894 | ✗ | if (port <= 0) { | |
| 895 | ✗ | av_strlcatf(buf, size, | |
| 896 | "a=control:streamid=%d\r\n", i + j); | ||
| 897 | } | ||
| 898 | ✗ | if (ac[i]->pb && ac[i]->pb->av_class) { | |
| 899 | ✗ | uint8_t *crypto_suite = NULL, *crypto_params = NULL; | |
| 900 | ✗ | av_opt_get(ac[i]->pb, "srtp_out_suite", AV_OPT_SEARCH_CHILDREN, | |
| 901 | &crypto_suite); | ||
| 902 | ✗ | av_opt_get(ac[i]->pb, "srtp_out_params", AV_OPT_SEARCH_CHILDREN, | |
| 903 | &crypto_params); | ||
| 904 | ✗ | if (crypto_suite && crypto_suite[0]) | |
| 905 | ✗ | av_strlcatf(buf, size, | |
| 906 | "a=crypto:1 %s inline:%s\r\n", | ||
| 907 | crypto_suite, crypto_params); | ||
| 908 | ✗ | av_free(crypto_suite); | |
| 909 | ✗ | av_free(crypto_params); | |
| 910 | } | ||
| 911 | } | ||
| 912 | } | ||
| 913 | |||
| 914 | ✗ | return 0; | |
| 915 | } | ||
| 916 | #else | ||
| 917 | int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) | ||
| 918 | { | ||
| 919 | return AVERROR(ENOSYS); | ||
| 920 | } | ||
| 921 | |||
| 922 | int ff_sdp_write_media(char *buff, int size, const AVStream *st, int idx, | ||
| 923 | const char *dest_addr, const char *dest_type, | ||
| 924 | int port, int ttl, AVFormatContext *fmt) | ||
| 925 | { | ||
| 926 | return AVERROR(ENOSYS); | ||
| 927 | } | ||
| 928 | #endif | ||
| 929 |