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23e7e3ae JVH |
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 | ||
2340bcd3 JVH |
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" | |
ba0970e1 | 25 | #include "utils.h" |
2340bcd3 JVH |
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 | ||
ba0970e1 | 35 | /* Buffer to handle all resends */ |
2340bcd3 JVH |
36 | raop_buffer_t *buffer; |
37 | ||
ba0970e1 JVH |
38 | /* Remote address as sockaddr */ |
39 | struct sockaddr_storage remote_saddr; | |
40 | socklen_t remote_saddr_len; | |
41 | ||
3baaba9d | 42 | /* MUTEX LOCKED VARIABLES START */ |
2340bcd3 JVH |
43 | /* These variables only edited mutex locked */ |
44 | int running; | |
45 | int joined; | |
3baaba9d | 46 | |
2340bcd3 | 47 | float volume; |
8e3bf408 | 48 | int volume_changed; |
3baaba9d JVH |
49 | unsigned char *metadata; |
50 | int metadata_len; | |
51 | unsigned char *coverart; | |
52 | int coverart_len; | |
53 | ||
2340bcd3 JVH |
54 | int flush; |
55 | thread_handle_t thread; | |
56 | mutex_handle_t run_mutex; | |
3baaba9d | 57 | /* MUTEX LOCKED VARIABLES END */ |
2340bcd3 JVH |
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 | ||
ba0970e1 | 71 | /* Initialized after the first control packet */ |
2340bcd3 JVH |
72 | struct sockaddr_storage control_saddr; |
73 | socklen_t control_saddr_len; | |
74 | unsigned short control_seqnum; | |
75 | }; | |
76 | ||
ba0970e1 JVH |
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 | } | |
e66980f2 JVH |
106 | if (strstr(current, ":")) { |
107 | /* FIXME: iTunes sends IP4 even with an IPv6 address, does it mean something */ | |
108 | family = AF_INET6; | |
109 | } | |
ba0970e1 JVH |
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 | ||
2340bcd3 | 122 | raop_rtp_t * |
ba0970e1 JVH |
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) | |
2340bcd3 JVH |
125 | { |
126 | raop_rtp_t *raop_rtp; | |
127 | ||
128 | assert(logger); | |
ba0970e1 JVH |
129 | assert(callbacks); |
130 | assert(remote); | |
131 | assert(fmtp); | |
2340bcd3 JVH |
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 | } | |
ba0970e1 JVH |
144 | if (raop_rtp_parse_remote(raop_rtp, remote) < 0) { |
145 | free(raop_rtp); | |
146 | return NULL; | |
147 | } | |
2340bcd3 JVH |
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); | |
3baaba9d JVH |
165 | free(raop_rtp->metadata); |
166 | free(raop_rtp->coverart); | |
2340bcd3 JVH |
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; | |
ba0970e1 | 223 | int ret; |
2340bcd3 JVH |
224 | |
225 | addr = (struct sockaddr *)&raop_rtp->control_saddr; | |
226 | addrlen = raop_rtp->control_saddr_len; | |
227 | ||
46212791 | 228 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got resend request %d %d", seqnum, count); |
2340bcd3 JVH |
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 | ||
ba0970e1 JVH |
241 | ret = sendto(raop_rtp->csock, (const char *)packet, sizeof(packet), 0, addr, addrlen); |
242 | if (ret == -1) { | |
46212791 | 243 | logger_log(raop_rtp->logger, LOGGER_WARNING, "Resend failed: %d", SOCKET_GET_ERROR()); |
ba0970e1 JVH |
244 | } |
245 | ||
2340bcd3 JVH |
246 | return 0; |
247 | } | |
248 | ||
b4cc5b07 | 249 | static int |
8e3bf408 | 250 | raop_rtp_process_events(raop_rtp_t *raop_rtp, void *cb_data) |
b4cc5b07 JVH |
251 | { |
252 | int flush; | |
8e3bf408 | 253 | float volume; |
b4cc5b07 JVH |
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); | |
b4cc5b07 JVH |
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 */ | |
8e3bf408 JVH |
269 | volume = raop_rtp->volume; |
270 | volume_changed = raop_rtp->volume_changed; | |
271 | raop_rtp->volume_changed = 0; | |
b4cc5b07 JVH |
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) { | |
8e3bf408 | 293 | raop_rtp->callbacks.audio_set_volume(raop_rtp->callbacks.cls, cb_data, volume); |
b4cc5b07 JVH |
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 | ||
2340bcd3 JVH |
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); | |
067f00ef | 336 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
2340bcd3 JVH |
337 | config->bitDepth, |
338 | config->numChannels, | |
339 | config->sampleRate); | |
340 | ||
341 | while(1) { | |
2340bcd3 JVH |
342 | fd_set rfds; |
343 | struct timeval tv; | |
344 | int nfds, ret; | |
345 | ||
b4cc5b07 | 346 | /* Check if we are still running and process callbacks */ |
8e3bf408 | 347 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
2340bcd3 JVH |
348 | break; |
349 | } | |
2340bcd3 JVH |
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 | ||
ba0970e1 | 381 | /* Get the destination address here, because we need the sin6_scope_id */ |
2340bcd3 JVH |
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 | ||
46212791 | 388 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got control packet of type 0x%02x", type); |
2340bcd3 JVH |
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)) { | |
46212791 | 396 | logger_log(raop_rtp->logger, LOGGER_INFO, "Would have timing packet in queue"); |
2340bcd3 JVH |
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 | } | |
46212791 | 423 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting UDP RAOP thread"); |
2340bcd3 JVH |
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); | |
067f00ef | 443 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
2340bcd3 JVH |
444 | config->bitDepth, |
445 | config->numChannels, | |
446 | config->sampleRate); | |
447 | ||
448 | while (1) { | |
2340bcd3 JVH |
449 | fd_set rfds; |
450 | struct timeval tv; | |
451 | int nfds, ret; | |
452 | ||
b4cc5b07 | 453 | /* Check if we are still running and process callbacks */ |
8e3bf408 | 454 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
2340bcd3 JVH |
455 | break; |
456 | } | |
2340bcd3 JVH |
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 */ | |
46212791 | 477 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in select"); |
2340bcd3 JVH |
478 | break; |
479 | } | |
480 | if (stream_fd == -1 && FD_ISSET(raop_rtp->dsock, &rfds)) { | |
481 | struct sockaddr_storage saddr; | |
482 | socklen_t saddrlen; | |
483 | ||
46212791 | 484 | logger_log(raop_rtp->logger, LOGGER_INFO, "Accepting client"); |
2340bcd3 JVH |
485 | saddrlen = sizeof(saddr); |
486 | stream_fd = accept(raop_rtp->dsock, (struct sockaddr *)&saddr, &saddrlen); | |
487 | if (stream_fd == -1) { | |
488 | /* FIXME: Error happened */ | |
46212791 | 489 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in accept %d %s", errno, strerror(errno)); |
2340bcd3 JVH |
490 | break; |
491 | } | |
492 | } | |
493 | if (stream_fd != -1 && FD_ISSET(stream_fd, &rfds)) { | |
494 | unsigned int rtplen=0; | |
2340bcd3 JVH |
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 */ | |
46212791 | 502 | logger_log(raop_rtp->logger, LOGGER_INFO, "TCP socket closed"); |
2340bcd3 JVH |
503 | break; |
504 | } else if (ret == -1) { | |
505 | /* FIXME: Error happened */ | |
46212791 | 506 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in recv"); |
2340bcd3 JVH |
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 */ | |
46212791 | 522 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error, packet too long %d", rtplen); |
2340bcd3 JVH |
523 | break; |
524 | } | |
525 | if (packetlen < 4+rtplen) { | |
526 | continue; | |
527 | } | |
528 | ||
529 | /* Packet is valid, process it */ | |
2340bcd3 JVH |
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 | ||
46212791 | 549 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting TCP RAOP thread"); |
2340bcd3 JVH |
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 | { | |
ba0970e1 JVH |
559 | int use_ipv6 = 0; |
560 | ||
2340bcd3 JVH |
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; | |
ba0970e1 JVH |
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) { | |
46212791 | 576 | logger_log(raop_rtp->logger, LOGGER_INFO, "Initializing sockets failed"); |
2340bcd3 JVH |
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; | |
8e3bf408 | 609 | raop_rtp->volume_changed = 1; |
2340bcd3 | 610 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
3baaba9d JVH |
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); | |
2340bcd3 JVH |
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 | } |