| 1 | /** |
| 2 | * Copyright (C) 2011-2012 Juho Vähä-Herttua |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #include <stdlib.h> |
| 16 | #include <stdio.h> |
| 17 | #include <string.h> |
| 18 | #include <assert.h> |
| 19 | #include <errno.h> |
| 20 | |
| 21 | #include "raop_rtp.h" |
| 22 | #include "raop.h" |
| 23 | #include "raop_buffer.h" |
| 24 | #include "netutils.h" |
| 25 | #include "utils.h" |
| 26 | #include "compat.h" |
| 27 | #include "logger.h" |
| 28 | |
| 29 | #define NO_FLUSH (-42) |
| 30 | |
| 31 | struct raop_rtp_s { |
| 32 | logger_t *logger; |
| 33 | raop_callbacks_t callbacks; |
| 34 | |
| 35 | /* Buffer to handle all resends */ |
| 36 | raop_buffer_t *buffer; |
| 37 | |
| 38 | /* Remote address as sockaddr */ |
| 39 | struct sockaddr_storage remote_saddr; |
| 40 | socklen_t remote_saddr_len; |
| 41 | |
| 42 | /* MUTEX LOCKED VARIABLES START */ |
| 43 | /* These variables only edited mutex locked */ |
| 44 | int running; |
| 45 | int joined; |
| 46 | |
| 47 | float volume; |
| 48 | int volume_changed; |
| 49 | unsigned char *metadata; |
| 50 | int metadata_len; |
| 51 | unsigned char *coverart; |
| 52 | int coverart_len; |
| 53 | |
| 54 | int flush; |
| 55 | thread_handle_t thread; |
| 56 | mutex_handle_t run_mutex; |
| 57 | /* MUTEX LOCKED VARIABLES END */ |
| 58 | |
| 59 | /* Remote control and timing ports */ |
| 60 | unsigned short control_rport; |
| 61 | unsigned short timing_rport; |
| 62 | |
| 63 | /* Sockets for control, timing and data */ |
| 64 | int csock, tsock, dsock; |
| 65 | |
| 66 | /* Local control, timing and data ports */ |
| 67 | unsigned short control_lport; |
| 68 | unsigned short timing_lport; |
| 69 | unsigned short data_lport; |
| 70 | |
| 71 | /* Initialized after the first control packet */ |
| 72 | struct sockaddr_storage control_saddr; |
| 73 | socklen_t control_saddr_len; |
| 74 | unsigned short control_seqnum; |
| 75 | }; |
| 76 | |
| 77 | static int |
| 78 | raop_rtp_parse_remote(raop_rtp_t *raop_rtp, const char *remote) |
| 79 | { |
| 80 | char *original; |
| 81 | char *current; |
| 82 | char *tmpstr; |
| 83 | int family; |
| 84 | int ret; |
| 85 | |
| 86 | assert(raop_rtp); |
| 87 | |
| 88 | current = original = strdup(remote); |
| 89 | if (!original) { |
| 90 | return -1; |
| 91 | } |
| 92 | tmpstr = utils_strsep(¤t, " "); |
| 93 | if (strcmp(tmpstr, "IN")) { |
| 94 | free(original); |
| 95 | return -1; |
| 96 | } |
| 97 | tmpstr = utils_strsep(¤t, " "); |
| 98 | if (!strcmp(tmpstr, "IP4") && current) { |
| 99 | family = AF_INET; |
| 100 | } else if (!strcmp(tmpstr, "IP6") && current) { |
| 101 | family = AF_INET6; |
| 102 | } else { |
| 103 | free(original); |
| 104 | return -1; |
| 105 | } |
| 106 | if (strstr(current, ":")) { |
| 107 | /* FIXME: iTunes sends IP4 even with an IPv6 address, does it mean something */ |
| 108 | family = AF_INET6; |
| 109 | } |
| 110 | ret = netutils_parse_address(family, current, |
| 111 | &raop_rtp->remote_saddr, |
| 112 | sizeof(raop_rtp->remote_saddr)); |
| 113 | if (ret < 0) { |
| 114 | free(original); |
| 115 | return -1; |
| 116 | } |
| 117 | raop_rtp->remote_saddr_len = ret; |
| 118 | free(original); |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | raop_rtp_t * |
| 123 | raop_rtp_init(logger_t *logger, raop_callbacks_t *callbacks, const char *remote, |
| 124 | const char *fmtp, const unsigned char *aeskey, const unsigned char *aesiv) |
| 125 | { |
| 126 | raop_rtp_t *raop_rtp; |
| 127 | |
| 128 | assert(logger); |
| 129 | assert(callbacks); |
| 130 | assert(remote); |
| 131 | assert(fmtp); |
| 132 | |
| 133 | raop_rtp = calloc(1, sizeof(raop_rtp_t)); |
| 134 | if (!raop_rtp) { |
| 135 | return NULL; |
| 136 | } |
| 137 | raop_rtp->logger = logger; |
| 138 | memcpy(&raop_rtp->callbacks, callbacks, sizeof(raop_callbacks_t)); |
| 139 | raop_rtp->buffer = raop_buffer_init(fmtp, aeskey, aesiv); |
| 140 | if (!raop_rtp->buffer) { |
| 141 | free(raop_rtp); |
| 142 | return NULL; |
| 143 | } |
| 144 | if (raop_rtp_parse_remote(raop_rtp, remote) < 0) { |
| 145 | free(raop_rtp); |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | raop_rtp->running = 0; |
| 150 | raop_rtp->joined = 1; |
| 151 | raop_rtp->flush = NO_FLUSH; |
| 152 | MUTEX_CREATE(raop_rtp->run_mutex); |
| 153 | |
| 154 | return raop_rtp; |
| 155 | } |
| 156 | |
| 157 | void |
| 158 | raop_rtp_destroy(raop_rtp_t *raop_rtp) |
| 159 | { |
| 160 | if (raop_rtp) { |
| 161 | raop_rtp_stop(raop_rtp); |
| 162 | |
| 163 | MUTEX_DESTROY(raop_rtp->run_mutex); |
| 164 | raop_buffer_destroy(raop_rtp->buffer); |
| 165 | free(raop_rtp->metadata); |
| 166 | free(raop_rtp->coverart); |
| 167 | free(raop_rtp); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | static int |
| 172 | raop_rtp_init_sockets(raop_rtp_t *raop_rtp, int use_ipv6, int use_udp) |
| 173 | { |
| 174 | int csock = -1, tsock = -1, dsock = -1; |
| 175 | unsigned short cport = 0, tport = 0, dport = 0; |
| 176 | |
| 177 | assert(raop_rtp); |
| 178 | |
| 179 | if (use_udp) { |
| 180 | csock = netutils_init_socket(&cport, use_ipv6, use_udp); |
| 181 | tsock = netutils_init_socket(&tport, use_ipv6, use_udp); |
| 182 | if (csock == -1 || tsock == -1) { |
| 183 | goto sockets_cleanup; |
| 184 | } |
| 185 | } |
| 186 | dsock = netutils_init_socket(&dport, use_ipv6, use_udp); |
| 187 | if (dsock == -1) { |
| 188 | goto sockets_cleanup; |
| 189 | } |
| 190 | |
| 191 | /* Listen to the data socket if using TCP */ |
| 192 | if (!use_udp) { |
| 193 | if (listen(dsock, 1) < 0) |
| 194 | goto sockets_cleanup; |
| 195 | } |
| 196 | |
| 197 | /* Set socket descriptors */ |
| 198 | raop_rtp->csock = csock; |
| 199 | raop_rtp->tsock = tsock; |
| 200 | raop_rtp->dsock = dsock; |
| 201 | |
| 202 | /* Set port values */ |
| 203 | raop_rtp->control_lport = cport; |
| 204 | raop_rtp->timing_lport = tport; |
| 205 | raop_rtp->data_lport = dport; |
| 206 | return 0; |
| 207 | |
| 208 | sockets_cleanup: |
| 209 | if (csock != -1) closesocket(csock); |
| 210 | if (tsock != -1) closesocket(tsock); |
| 211 | if (dsock != -1) closesocket(dsock); |
| 212 | return -1; |
| 213 | } |
| 214 | |
| 215 | static int |
| 216 | raop_rtp_resend_callback(void *opaque, unsigned short seqnum, unsigned short count) |
| 217 | { |
| 218 | raop_rtp_t *raop_rtp = opaque; |
| 219 | unsigned char packet[8]; |
| 220 | unsigned short ourseqnum; |
| 221 | struct sockaddr *addr; |
| 222 | socklen_t addrlen; |
| 223 | int ret; |
| 224 | |
| 225 | addr = (struct sockaddr *)&raop_rtp->control_saddr; |
| 226 | addrlen = raop_rtp->control_saddr_len; |
| 227 | |
| 228 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got resend request %d %d", seqnum, count); |
| 229 | ourseqnum = raop_rtp->control_seqnum++; |
| 230 | |
| 231 | /* Fill the request buffer */ |
| 232 | packet[0] = 0x80; |
| 233 | packet[1] = 0x55|0x80; |
| 234 | packet[2] = (ourseqnum >> 8); |
| 235 | packet[3] = ourseqnum; |
| 236 | packet[4] = (seqnum >> 8); |
| 237 | packet[5] = seqnum; |
| 238 | packet[6] = (count >> 8); |
| 239 | packet[7] = count; |
| 240 | |
| 241 | ret = sendto(raop_rtp->csock, (const char *)packet, sizeof(packet), 0, addr, addrlen); |
| 242 | if (ret == -1) { |
| 243 | logger_log(raop_rtp->logger, LOGGER_WARNING, "Resend failed: %d", SOCKET_GET_ERROR()); |
| 244 | } |
| 245 | |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static int |
| 250 | raop_rtp_process_events(raop_rtp_t *raop_rtp, void *cb_data) |
| 251 | { |
| 252 | int flush; |
| 253 | float volume; |
| 254 | int volume_changed; |
| 255 | unsigned char *metadata; |
| 256 | int metadata_len; |
| 257 | unsigned char *coverart; |
| 258 | int coverart_len; |
| 259 | |
| 260 | assert(raop_rtp); |
| 261 | |
| 262 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 263 | if (!raop_rtp->running) { |
| 264 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 265 | return 1; |
| 266 | } |
| 267 | |
| 268 | /* Read the volume level */ |
| 269 | volume = raop_rtp->volume; |
| 270 | volume_changed = raop_rtp->volume_changed; |
| 271 | raop_rtp->volume_changed = 0; |
| 272 | |
| 273 | /* Read the flush value */ |
| 274 | flush = raop_rtp->flush; |
| 275 | raop_rtp->flush = NO_FLUSH; |
| 276 | |
| 277 | /* Read the metadata */ |
| 278 | metadata = raop_rtp->metadata; |
| 279 | metadata_len = raop_rtp->metadata_len; |
| 280 | raop_rtp->metadata = NULL; |
| 281 | raop_rtp->metadata_len = 0; |
| 282 | |
| 283 | /* Read the coverart */ |
| 284 | coverart = raop_rtp->coverart; |
| 285 | coverart_len = raop_rtp->coverart_len; |
| 286 | raop_rtp->coverart = NULL; |
| 287 | raop_rtp->coverart_len = 0; |
| 288 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 289 | |
| 290 | /* Call set_volume callback if changed */ |
| 291 | if (volume_changed) { |
| 292 | if (raop_rtp->callbacks.audio_set_volume) { |
| 293 | raop_rtp->callbacks.audio_set_volume(raop_rtp->callbacks.cls, cb_data, volume); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | /* Handle flush if requested */ |
| 298 | if (flush != NO_FLUSH) { |
| 299 | raop_buffer_flush(raop_rtp->buffer, flush); |
| 300 | if (raop_rtp->callbacks.audio_flush) { |
| 301 | raop_rtp->callbacks.audio_flush(raop_rtp->callbacks.cls, cb_data); |
| 302 | } |
| 303 | } |
| 304 | if (metadata != NULL) { |
| 305 | if (raop_rtp->callbacks.audio_set_metadata) { |
| 306 | raop_rtp->callbacks.audio_set_metadata(raop_rtp->callbacks.cls, cb_data, metadata, metadata_len); |
| 307 | } |
| 308 | free(metadata); |
| 309 | metadata = NULL; |
| 310 | } |
| 311 | if (coverart != NULL) { |
| 312 | if (raop_rtp->callbacks.audio_set_coverart) { |
| 313 | raop_rtp->callbacks.audio_set_coverart(raop_rtp->callbacks.cls, cb_data, coverart, coverart_len); |
| 314 | } |
| 315 | free(coverart); |
| 316 | coverart = NULL; |
| 317 | } |
| 318 | return 0; |
| 319 | } |
| 320 | |
| 321 | static THREAD_RETVAL |
| 322 | raop_rtp_thread_udp(void *arg) |
| 323 | { |
| 324 | raop_rtp_t *raop_rtp = arg; |
| 325 | unsigned char packet[RAOP_PACKET_LEN]; |
| 326 | unsigned int packetlen; |
| 327 | struct sockaddr_storage saddr; |
| 328 | socklen_t saddrlen; |
| 329 | |
| 330 | const ALACSpecificConfig *config; |
| 331 | void *cb_data = NULL; |
| 332 | |
| 333 | assert(raop_rtp); |
| 334 | |
| 335 | config = raop_buffer_get_config(raop_rtp->buffer); |
| 336 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
| 337 | config->bitDepth, |
| 338 | config->numChannels, |
| 339 | config->sampleRate); |
| 340 | |
| 341 | while(1) { |
| 342 | fd_set rfds; |
| 343 | struct timeval tv; |
| 344 | int nfds, ret; |
| 345 | |
| 346 | /* Check if we are still running and process callbacks */ |
| 347 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
| 348 | break; |
| 349 | } |
| 350 | |
| 351 | /* Set timeout value to 5ms */ |
| 352 | tv.tv_sec = 0; |
| 353 | tv.tv_usec = 5000; |
| 354 | |
| 355 | /* Get the correct nfds value */ |
| 356 | nfds = raop_rtp->csock+1; |
| 357 | if (raop_rtp->tsock >= nfds) |
| 358 | nfds = raop_rtp->tsock+1; |
| 359 | if (raop_rtp->dsock >= nfds) |
| 360 | nfds = raop_rtp->dsock+1; |
| 361 | |
| 362 | /* Set rfds and call select */ |
| 363 | FD_ZERO(&rfds); |
| 364 | FD_SET(raop_rtp->csock, &rfds); |
| 365 | FD_SET(raop_rtp->tsock, &rfds); |
| 366 | FD_SET(raop_rtp->dsock, &rfds); |
| 367 | ret = select(nfds, &rfds, NULL, NULL, &tv); |
| 368 | if (ret == 0) { |
| 369 | /* Timeout happened */ |
| 370 | continue; |
| 371 | } else if (ret == -1) { |
| 372 | /* FIXME: Error happened */ |
| 373 | break; |
| 374 | } |
| 375 | |
| 376 | if (FD_ISSET(raop_rtp->csock, &rfds)) { |
| 377 | saddrlen = sizeof(saddr); |
| 378 | packetlen = recvfrom(raop_rtp->csock, (char *)packet, sizeof(packet), 0, |
| 379 | (struct sockaddr *)&saddr, &saddrlen); |
| 380 | |
| 381 | /* Get the destination address here, because we need the sin6_scope_id */ |
| 382 | memcpy(&raop_rtp->control_saddr, &saddr, saddrlen); |
| 383 | raop_rtp->control_saddr_len = saddrlen; |
| 384 | |
| 385 | if (packetlen >= 12) { |
| 386 | char type = packet[1] & ~0x80; |
| 387 | |
| 388 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got control packet of type 0x%02x", type); |
| 389 | if (type == 0x56) { |
| 390 | /* Handle resent data packet */ |
| 391 | int ret = raop_buffer_queue(raop_rtp->buffer, packet+4, packetlen-4, 1); |
| 392 | assert(ret >= 0); |
| 393 | } |
| 394 | } |
| 395 | } else if (FD_ISSET(raop_rtp->tsock, &rfds)) { |
| 396 | logger_log(raop_rtp->logger, LOGGER_INFO, "Would have timing packet in queue"); |
| 397 | } else if (FD_ISSET(raop_rtp->dsock, &rfds)) { |
| 398 | saddrlen = sizeof(saddr); |
| 399 | packetlen = recvfrom(raop_rtp->dsock, (char *)packet, sizeof(packet), 0, |
| 400 | (struct sockaddr *)&saddr, &saddrlen); |
| 401 | if (packetlen >= 12) { |
| 402 | int no_resend = (raop_rtp->control_rport == 0); |
| 403 | int ret; |
| 404 | |
| 405 | const void *audiobuf; |
| 406 | int audiobuflen; |
| 407 | |
| 408 | ret = raop_buffer_queue(raop_rtp->buffer, packet, packetlen, 1); |
| 409 | assert(ret >= 0); |
| 410 | |
| 411 | /* Decode all frames in queue */ |
| 412 | while ((audiobuf = raop_buffer_dequeue(raop_rtp->buffer, &audiobuflen, no_resend))) { |
| 413 | raop_rtp->callbacks.audio_process(raop_rtp->callbacks.cls, cb_data, audiobuf, audiobuflen); |
| 414 | } |
| 415 | |
| 416 | /* Handle possible resend requests */ |
| 417 | if (!no_resend) { |
| 418 | raop_buffer_handle_resends(raop_rtp->buffer, raop_rtp_resend_callback, raop_rtp); |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting UDP RAOP thread"); |
| 424 | raop_rtp->callbacks.audio_destroy(raop_rtp->callbacks.cls, cb_data); |
| 425 | |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | static THREAD_RETVAL |
| 430 | raop_rtp_thread_tcp(void *arg) |
| 431 | { |
| 432 | raop_rtp_t *raop_rtp = arg; |
| 433 | int stream_fd = -1; |
| 434 | unsigned char packet[RAOP_PACKET_LEN]; |
| 435 | unsigned int packetlen = 0; |
| 436 | |
| 437 | const ALACSpecificConfig *config; |
| 438 | void *cb_data = NULL; |
| 439 | |
| 440 | assert(raop_rtp); |
| 441 | |
| 442 | config = raop_buffer_get_config(raop_rtp->buffer); |
| 443 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
| 444 | config->bitDepth, |
| 445 | config->numChannels, |
| 446 | config->sampleRate); |
| 447 | |
| 448 | while (1) { |
| 449 | fd_set rfds; |
| 450 | struct timeval tv; |
| 451 | int nfds, ret; |
| 452 | |
| 453 | /* Check if we are still running and process callbacks */ |
| 454 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
| 455 | break; |
| 456 | } |
| 457 | |
| 458 | /* Set timeout value to 5ms */ |
| 459 | tv.tv_sec = 0; |
| 460 | tv.tv_usec = 5000; |
| 461 | |
| 462 | /* Get the correct nfds value and set rfds */ |
| 463 | FD_ZERO(&rfds); |
| 464 | if (stream_fd == -1) { |
| 465 | FD_SET(raop_rtp->dsock, &rfds); |
| 466 | nfds = raop_rtp->dsock+1; |
| 467 | } else { |
| 468 | FD_SET(stream_fd, &rfds); |
| 469 | nfds = stream_fd+1; |
| 470 | } |
| 471 | ret = select(nfds, &rfds, NULL, NULL, &tv); |
| 472 | if (ret == 0) { |
| 473 | /* Timeout happened */ |
| 474 | continue; |
| 475 | } else if (ret == -1) { |
| 476 | /* FIXME: Error happened */ |
| 477 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in select"); |
| 478 | break; |
| 479 | } |
| 480 | if (stream_fd == -1 && FD_ISSET(raop_rtp->dsock, &rfds)) { |
| 481 | struct sockaddr_storage saddr; |
| 482 | socklen_t saddrlen; |
| 483 | |
| 484 | logger_log(raop_rtp->logger, LOGGER_INFO, "Accepting client"); |
| 485 | saddrlen = sizeof(saddr); |
| 486 | stream_fd = accept(raop_rtp->dsock, (struct sockaddr *)&saddr, &saddrlen); |
| 487 | if (stream_fd == -1) { |
| 488 | /* FIXME: Error happened */ |
| 489 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in accept %d %s", errno, strerror(errno)); |
| 490 | break; |
| 491 | } |
| 492 | } |
| 493 | if (stream_fd != -1 && FD_ISSET(stream_fd, &rfds)) { |
| 494 | unsigned int rtplen=0; |
| 495 | |
| 496 | const void *audiobuf; |
| 497 | int audiobuflen; |
| 498 | |
| 499 | ret = recv(stream_fd, (char *)(packet+packetlen), sizeof(packet)-packetlen, 0); |
| 500 | if (ret == 0) { |
| 501 | /* TCP socket closed */ |
| 502 | logger_log(raop_rtp->logger, LOGGER_INFO, "TCP socket closed"); |
| 503 | break; |
| 504 | } else if (ret == -1) { |
| 505 | /* FIXME: Error happened */ |
| 506 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in recv"); |
| 507 | break; |
| 508 | } |
| 509 | packetlen += ret; |
| 510 | |
| 511 | /* Check that we have enough bytes */ |
| 512 | if (packetlen < 4) { |
| 513 | continue; |
| 514 | } |
| 515 | if (packet[0] != '$' || packet[1] != '\0') { |
| 516 | /* FIXME: Incorrect RTP magic bytes */ |
| 517 | break; |
| 518 | } |
| 519 | rtplen = (packet[2] << 8) | packet[3]; |
| 520 | if (rtplen > sizeof(packet)) { |
| 521 | /* FIXME: Too long packet */ |
| 522 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error, packet too long %d", rtplen); |
| 523 | break; |
| 524 | } |
| 525 | if (packetlen < 4+rtplen) { |
| 526 | continue; |
| 527 | } |
| 528 | |
| 529 | /* Packet is valid, process it */ |
| 530 | ret = raop_buffer_queue(raop_rtp->buffer, packet+4, rtplen, 0); |
| 531 | assert(ret >= 0); |
| 532 | |
| 533 | /* Remove processed bytes from packet buffer */ |
| 534 | memmove(packet, packet+4+rtplen, packetlen-rtplen); |
| 535 | packetlen -= 4+rtplen; |
| 536 | |
| 537 | /* Decode the received frame */ |
| 538 | if ((audiobuf = raop_buffer_dequeue(raop_rtp->buffer, &audiobuflen, 1))) { |
| 539 | raop_rtp->callbacks.audio_process(raop_rtp->callbacks.cls, cb_data, audiobuf, audiobuflen); |
| 540 | } |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | /* Close the stream file descriptor */ |
| 545 | if (stream_fd != -1) { |
| 546 | closesocket(stream_fd); |
| 547 | } |
| 548 | |
| 549 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting TCP RAOP thread"); |
| 550 | raop_rtp->callbacks.audio_destroy(raop_rtp->callbacks.cls, cb_data); |
| 551 | |
| 552 | return 0; |
| 553 | } |
| 554 | |
| 555 | void |
| 556 | raop_rtp_start(raop_rtp_t *raop_rtp, int use_udp, unsigned short control_rport, unsigned short timing_rport, |
| 557 | unsigned short *control_lport, unsigned short *timing_lport, unsigned short *data_lport) |
| 558 | { |
| 559 | int use_ipv6 = 0; |
| 560 | |
| 561 | assert(raop_rtp); |
| 562 | |
| 563 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 564 | if (raop_rtp->running || !raop_rtp->joined) { |
| 565 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 566 | return; |
| 567 | } |
| 568 | |
| 569 | /* Initialize ports and sockets */ |
| 570 | raop_rtp->control_rport = control_rport; |
| 571 | raop_rtp->timing_rport = timing_rport; |
| 572 | if (raop_rtp->remote_saddr.ss_family == AF_INET6) { |
| 573 | use_ipv6 = 1; |
| 574 | } |
| 575 | if (raop_rtp_init_sockets(raop_rtp, use_ipv6, use_udp) < 0) { |
| 576 | logger_log(raop_rtp->logger, LOGGER_INFO, "Initializing sockets failed"); |
| 577 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 578 | return; |
| 579 | } |
| 580 | if (control_lport) *control_lport = raop_rtp->control_lport; |
| 581 | if (timing_lport) *timing_lport = raop_rtp->timing_lport; |
| 582 | if (data_lport) *data_lport = raop_rtp->data_lport; |
| 583 | |
| 584 | /* Create the thread and initialize running values */ |
| 585 | raop_rtp->running = 1; |
| 586 | raop_rtp->joined = 0; |
| 587 | if (use_udp) { |
| 588 | THREAD_CREATE(raop_rtp->thread, raop_rtp_thread_udp, raop_rtp); |
| 589 | } else { |
| 590 | THREAD_CREATE(raop_rtp->thread, raop_rtp_thread_tcp, raop_rtp); |
| 591 | } |
| 592 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 593 | } |
| 594 | |
| 595 | void |
| 596 | raop_rtp_set_volume(raop_rtp_t *raop_rtp, float volume) |
| 597 | { |
| 598 | assert(raop_rtp); |
| 599 | |
| 600 | if (volume > 0.0f) { |
| 601 | volume = 0.0f; |
| 602 | } else if (volume < -144.0f) { |
| 603 | volume = -144.0f; |
| 604 | } |
| 605 | |
| 606 | /* Set volume in thread instead */ |
| 607 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 608 | raop_rtp->volume = volume; |
| 609 | raop_rtp->volume_changed = 1; |
| 610 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 611 | } |
| 612 | |
| 613 | void |
| 614 | raop_rtp_set_metadata(raop_rtp_t *raop_rtp, const char *data, int datalen) |
| 615 | { |
| 616 | unsigned char *metadata; |
| 617 | |
| 618 | assert(raop_rtp); |
| 619 | |
| 620 | if (datalen <= 0) { |
| 621 | return; |
| 622 | } |
| 623 | metadata = malloc(datalen); |
| 624 | assert(metadata); |
| 625 | memcpy(metadata, data, datalen); |
| 626 | |
| 627 | /* Set metadata in thread instead */ |
| 628 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 629 | raop_rtp->metadata = metadata; |
| 630 | raop_rtp->metadata_len = datalen; |
| 631 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 632 | } |
| 633 | |
| 634 | void |
| 635 | raop_rtp_set_coverart(raop_rtp_t *raop_rtp, const char *data, int datalen) |
| 636 | { |
| 637 | unsigned char *coverart; |
| 638 | |
| 639 | assert(raop_rtp); |
| 640 | |
| 641 | if (datalen <= 0) { |
| 642 | return; |
| 643 | } |
| 644 | coverart = malloc(datalen); |
| 645 | assert(coverart); |
| 646 | memcpy(coverart, data, datalen); |
| 647 | |
| 648 | /* Set coverart in thread instead */ |
| 649 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 650 | raop_rtp->coverart = coverart; |
| 651 | raop_rtp->coverart_len = datalen; |
| 652 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 653 | } |
| 654 | |
| 655 | void |
| 656 | raop_rtp_flush(raop_rtp_t *raop_rtp, int next_seq) |
| 657 | { |
| 658 | assert(raop_rtp); |
| 659 | |
| 660 | /* Call flush in thread instead */ |
| 661 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 662 | raop_rtp->flush = next_seq; |
| 663 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 664 | } |
| 665 | |
| 666 | void |
| 667 | raop_rtp_stop(raop_rtp_t *raop_rtp) |
| 668 | { |
| 669 | assert(raop_rtp); |
| 670 | |
| 671 | /* Check that we are running and thread is not |
| 672 | * joined (should never be while still running) */ |
| 673 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 674 | if (!raop_rtp->running || raop_rtp->joined) { |
| 675 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 676 | return; |
| 677 | } |
| 678 | raop_rtp->running = 0; |
| 679 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 680 | |
| 681 | /* Join the thread */ |
| 682 | THREAD_JOIN(raop_rtp->thread); |
| 683 | if (raop_rtp->csock != -1) closesocket(raop_rtp->csock); |
| 684 | if (raop_rtp->tsock != -1) closesocket(raop_rtp->tsock); |
| 685 | if (raop_rtp->dsock != -1) closesocket(raop_rtp->dsock); |
| 686 | |
| 687 | /* Flush buffer into initial state */ |
| 688 | raop_buffer_flush(raop_rtp->buffer, -1); |
| 689 | |
| 690 | /* Mark thread as joined */ |
| 691 | MUTEX_LOCK(raop_rtp->run_mutex); |
| 692 | raop_rtp->joined = 1; |
| 693 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
| 694 | } |