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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 | 123 | raop_rtp_init(logger_t *logger, raop_callbacks_t *callbacks, const char *remote, |
597bc69b JVH |
124 | const char *rtpmap, const char *fmtp, |
125 | const unsigned char *aeskey, const unsigned char *aesiv) | |
2340bcd3 JVH |
126 | { |
127 | raop_rtp_t *raop_rtp; | |
128 | ||
129 | assert(logger); | |
ba0970e1 JVH |
130 | assert(callbacks); |
131 | assert(remote); | |
597bc69b | 132 | assert(rtpmap); |
ba0970e1 | 133 | assert(fmtp); |
2340bcd3 JVH |
134 | |
135 | raop_rtp = calloc(1, sizeof(raop_rtp_t)); | |
136 | if (!raop_rtp) { | |
137 | return NULL; | |
138 | } | |
139 | raop_rtp->logger = logger; | |
140 | memcpy(&raop_rtp->callbacks, callbacks, sizeof(raop_callbacks_t)); | |
597bc69b | 141 | raop_rtp->buffer = raop_buffer_init(rtpmap, fmtp, aeskey, aesiv); |
2340bcd3 JVH |
142 | if (!raop_rtp->buffer) { |
143 | free(raop_rtp); | |
144 | return NULL; | |
145 | } | |
ba0970e1 JVH |
146 | if (raop_rtp_parse_remote(raop_rtp, remote) < 0) { |
147 | free(raop_rtp); | |
148 | return NULL; | |
149 | } | |
2340bcd3 JVH |
150 | |
151 | raop_rtp->running = 0; | |
152 | raop_rtp->joined = 1; | |
153 | raop_rtp->flush = NO_FLUSH; | |
154 | MUTEX_CREATE(raop_rtp->run_mutex); | |
155 | ||
156 | return raop_rtp; | |
157 | } | |
158 | ||
159 | void | |
160 | raop_rtp_destroy(raop_rtp_t *raop_rtp) | |
161 | { | |
162 | if (raop_rtp) { | |
163 | raop_rtp_stop(raop_rtp); | |
164 | ||
165 | MUTEX_DESTROY(raop_rtp->run_mutex); | |
166 | raop_buffer_destroy(raop_rtp->buffer); | |
3baaba9d JVH |
167 | free(raop_rtp->metadata); |
168 | free(raop_rtp->coverart); | |
2340bcd3 JVH |
169 | free(raop_rtp); |
170 | } | |
171 | } | |
172 | ||
173 | static int | |
174 | raop_rtp_init_sockets(raop_rtp_t *raop_rtp, int use_ipv6, int use_udp) | |
175 | { | |
176 | int csock = -1, tsock = -1, dsock = -1; | |
177 | unsigned short cport = 0, tport = 0, dport = 0; | |
178 | ||
179 | assert(raop_rtp); | |
180 | ||
181 | if (use_udp) { | |
182 | csock = netutils_init_socket(&cport, use_ipv6, use_udp); | |
183 | tsock = netutils_init_socket(&tport, use_ipv6, use_udp); | |
184 | if (csock == -1 || tsock == -1) { | |
185 | goto sockets_cleanup; | |
186 | } | |
187 | } | |
188 | dsock = netutils_init_socket(&dport, use_ipv6, use_udp); | |
189 | if (dsock == -1) { | |
190 | goto sockets_cleanup; | |
191 | } | |
192 | ||
193 | /* Listen to the data socket if using TCP */ | |
194 | if (!use_udp) { | |
195 | if (listen(dsock, 1) < 0) | |
196 | goto sockets_cleanup; | |
197 | } | |
198 | ||
199 | /* Set socket descriptors */ | |
200 | raop_rtp->csock = csock; | |
201 | raop_rtp->tsock = tsock; | |
202 | raop_rtp->dsock = dsock; | |
203 | ||
204 | /* Set port values */ | |
205 | raop_rtp->control_lport = cport; | |
206 | raop_rtp->timing_lport = tport; | |
207 | raop_rtp->data_lport = dport; | |
208 | return 0; | |
209 | ||
210 | sockets_cleanup: | |
211 | if (csock != -1) closesocket(csock); | |
212 | if (tsock != -1) closesocket(tsock); | |
213 | if (dsock != -1) closesocket(dsock); | |
214 | return -1; | |
215 | } | |
216 | ||
217 | static int | |
218 | raop_rtp_resend_callback(void *opaque, unsigned short seqnum, unsigned short count) | |
219 | { | |
220 | raop_rtp_t *raop_rtp = opaque; | |
221 | unsigned char packet[8]; | |
222 | unsigned short ourseqnum; | |
223 | struct sockaddr *addr; | |
224 | socklen_t addrlen; | |
ba0970e1 | 225 | int ret; |
2340bcd3 JVH |
226 | |
227 | addr = (struct sockaddr *)&raop_rtp->control_saddr; | |
228 | addrlen = raop_rtp->control_saddr_len; | |
229 | ||
46212791 | 230 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got resend request %d %d", seqnum, count); |
2340bcd3 JVH |
231 | ourseqnum = raop_rtp->control_seqnum++; |
232 | ||
233 | /* Fill the request buffer */ | |
234 | packet[0] = 0x80; | |
235 | packet[1] = 0x55|0x80; | |
236 | packet[2] = (ourseqnum >> 8); | |
237 | packet[3] = ourseqnum; | |
238 | packet[4] = (seqnum >> 8); | |
239 | packet[5] = seqnum; | |
240 | packet[6] = (count >> 8); | |
241 | packet[7] = count; | |
242 | ||
ba0970e1 JVH |
243 | ret = sendto(raop_rtp->csock, (const char *)packet, sizeof(packet), 0, addr, addrlen); |
244 | if (ret == -1) { | |
46212791 | 245 | logger_log(raop_rtp->logger, LOGGER_WARNING, "Resend failed: %d", SOCKET_GET_ERROR()); |
ba0970e1 JVH |
246 | } |
247 | ||
2340bcd3 JVH |
248 | return 0; |
249 | } | |
250 | ||
b4cc5b07 | 251 | static int |
8e3bf408 | 252 | raop_rtp_process_events(raop_rtp_t *raop_rtp, void *cb_data) |
b4cc5b07 JVH |
253 | { |
254 | int flush; | |
8e3bf408 | 255 | float volume; |
b4cc5b07 JVH |
256 | int volume_changed; |
257 | unsigned char *metadata; | |
258 | int metadata_len; | |
259 | unsigned char *coverart; | |
260 | int coverart_len; | |
261 | ||
262 | assert(raop_rtp); | |
b4cc5b07 JVH |
263 | |
264 | MUTEX_LOCK(raop_rtp->run_mutex); | |
265 | if (!raop_rtp->running) { | |
266 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
267 | return 1; | |
268 | } | |
269 | ||
270 | /* Read the volume level */ | |
8e3bf408 JVH |
271 | volume = raop_rtp->volume; |
272 | volume_changed = raop_rtp->volume_changed; | |
273 | raop_rtp->volume_changed = 0; | |
b4cc5b07 JVH |
274 | |
275 | /* Read the flush value */ | |
276 | flush = raop_rtp->flush; | |
277 | raop_rtp->flush = NO_FLUSH; | |
278 | ||
279 | /* Read the metadata */ | |
280 | metadata = raop_rtp->metadata; | |
281 | metadata_len = raop_rtp->metadata_len; | |
282 | raop_rtp->metadata = NULL; | |
283 | raop_rtp->metadata_len = 0; | |
284 | ||
285 | /* Read the coverart */ | |
286 | coverart = raop_rtp->coverart; | |
287 | coverart_len = raop_rtp->coverart_len; | |
288 | raop_rtp->coverart = NULL; | |
289 | raop_rtp->coverart_len = 0; | |
290 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
291 | ||
292 | /* Call set_volume callback if changed */ | |
293 | if (volume_changed) { | |
294 | if (raop_rtp->callbacks.audio_set_volume) { | |
8e3bf408 | 295 | raop_rtp->callbacks.audio_set_volume(raop_rtp->callbacks.cls, cb_data, volume); |
b4cc5b07 JVH |
296 | } |
297 | } | |
298 | ||
299 | /* Handle flush if requested */ | |
300 | if (flush != NO_FLUSH) { | |
301 | raop_buffer_flush(raop_rtp->buffer, flush); | |
302 | if (raop_rtp->callbacks.audio_flush) { | |
303 | raop_rtp->callbacks.audio_flush(raop_rtp->callbacks.cls, cb_data); | |
304 | } | |
305 | } | |
306 | if (metadata != NULL) { | |
307 | if (raop_rtp->callbacks.audio_set_metadata) { | |
308 | raop_rtp->callbacks.audio_set_metadata(raop_rtp->callbacks.cls, cb_data, metadata, metadata_len); | |
309 | } | |
310 | free(metadata); | |
311 | metadata = NULL; | |
312 | } | |
313 | if (coverart != NULL) { | |
314 | if (raop_rtp->callbacks.audio_set_coverart) { | |
315 | raop_rtp->callbacks.audio_set_coverart(raop_rtp->callbacks.cls, cb_data, coverart, coverart_len); | |
316 | } | |
317 | free(coverart); | |
318 | coverart = NULL; | |
319 | } | |
320 | return 0; | |
321 | } | |
322 | ||
2340bcd3 JVH |
323 | static THREAD_RETVAL |
324 | raop_rtp_thread_udp(void *arg) | |
325 | { | |
326 | raop_rtp_t *raop_rtp = arg; | |
327 | unsigned char packet[RAOP_PACKET_LEN]; | |
328 | unsigned int packetlen; | |
329 | struct sockaddr_storage saddr; | |
330 | socklen_t saddrlen; | |
331 | ||
332 | const ALACSpecificConfig *config; | |
333 | void *cb_data = NULL; | |
334 | ||
335 | assert(raop_rtp); | |
336 | ||
337 | config = raop_buffer_get_config(raop_rtp->buffer); | |
067f00ef | 338 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
2340bcd3 JVH |
339 | config->bitDepth, |
340 | config->numChannels, | |
341 | config->sampleRate); | |
342 | ||
343 | while(1) { | |
2340bcd3 JVH |
344 | fd_set rfds; |
345 | struct timeval tv; | |
346 | int nfds, ret; | |
347 | ||
b4cc5b07 | 348 | /* Check if we are still running and process callbacks */ |
8e3bf408 | 349 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
2340bcd3 JVH |
350 | break; |
351 | } | |
2340bcd3 JVH |
352 | |
353 | /* Set timeout value to 5ms */ | |
354 | tv.tv_sec = 0; | |
355 | tv.tv_usec = 5000; | |
356 | ||
357 | /* Get the correct nfds value */ | |
358 | nfds = raop_rtp->csock+1; | |
359 | if (raop_rtp->tsock >= nfds) | |
360 | nfds = raop_rtp->tsock+1; | |
361 | if (raop_rtp->dsock >= nfds) | |
362 | nfds = raop_rtp->dsock+1; | |
363 | ||
364 | /* Set rfds and call select */ | |
365 | FD_ZERO(&rfds); | |
366 | FD_SET(raop_rtp->csock, &rfds); | |
367 | FD_SET(raop_rtp->tsock, &rfds); | |
368 | FD_SET(raop_rtp->dsock, &rfds); | |
369 | ret = select(nfds, &rfds, NULL, NULL, &tv); | |
370 | if (ret == 0) { | |
371 | /* Timeout happened */ | |
372 | continue; | |
373 | } else if (ret == -1) { | |
374 | /* FIXME: Error happened */ | |
375 | break; | |
376 | } | |
377 | ||
378 | if (FD_ISSET(raop_rtp->csock, &rfds)) { | |
379 | saddrlen = sizeof(saddr); | |
380 | packetlen = recvfrom(raop_rtp->csock, (char *)packet, sizeof(packet), 0, | |
381 | (struct sockaddr *)&saddr, &saddrlen); | |
382 | ||
ba0970e1 | 383 | /* Get the destination address here, because we need the sin6_scope_id */ |
2340bcd3 JVH |
384 | memcpy(&raop_rtp->control_saddr, &saddr, saddrlen); |
385 | raop_rtp->control_saddr_len = saddrlen; | |
386 | ||
387 | if (packetlen >= 12) { | |
388 | char type = packet[1] & ~0x80; | |
389 | ||
46212791 | 390 | logger_log(raop_rtp->logger, LOGGER_DEBUG, "Got control packet of type 0x%02x", type); |
2340bcd3 JVH |
391 | if (type == 0x56) { |
392 | /* Handle resent data packet */ | |
393 | int ret = raop_buffer_queue(raop_rtp->buffer, packet+4, packetlen-4, 1); | |
394 | assert(ret >= 0); | |
395 | } | |
396 | } | |
397 | } else if (FD_ISSET(raop_rtp->tsock, &rfds)) { | |
46212791 | 398 | logger_log(raop_rtp->logger, LOGGER_INFO, "Would have timing packet in queue"); |
2340bcd3 JVH |
399 | } else if (FD_ISSET(raop_rtp->dsock, &rfds)) { |
400 | saddrlen = sizeof(saddr); | |
401 | packetlen = recvfrom(raop_rtp->dsock, (char *)packet, sizeof(packet), 0, | |
402 | (struct sockaddr *)&saddr, &saddrlen); | |
403 | if (packetlen >= 12) { | |
404 | int no_resend = (raop_rtp->control_rport == 0); | |
405 | int ret; | |
406 | ||
407 | const void *audiobuf; | |
408 | int audiobuflen; | |
409 | ||
410 | ret = raop_buffer_queue(raop_rtp->buffer, packet, packetlen, 1); | |
411 | assert(ret >= 0); | |
412 | ||
413 | /* Decode all frames in queue */ | |
414 | while ((audiobuf = raop_buffer_dequeue(raop_rtp->buffer, &audiobuflen, no_resend))) { | |
415 | raop_rtp->callbacks.audio_process(raop_rtp->callbacks.cls, cb_data, audiobuf, audiobuflen); | |
416 | } | |
417 | ||
418 | /* Handle possible resend requests */ | |
419 | if (!no_resend) { | |
420 | raop_buffer_handle_resends(raop_rtp->buffer, raop_rtp_resend_callback, raop_rtp); | |
421 | } | |
422 | } | |
423 | } | |
424 | } | |
46212791 | 425 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting UDP RAOP thread"); |
2340bcd3 JVH |
426 | raop_rtp->callbacks.audio_destroy(raop_rtp->callbacks.cls, cb_data); |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static THREAD_RETVAL | |
432 | raop_rtp_thread_tcp(void *arg) | |
433 | { | |
434 | raop_rtp_t *raop_rtp = arg; | |
435 | int stream_fd = -1; | |
436 | unsigned char packet[RAOP_PACKET_LEN]; | |
437 | unsigned int packetlen = 0; | |
438 | ||
439 | const ALACSpecificConfig *config; | |
440 | void *cb_data = NULL; | |
441 | ||
442 | assert(raop_rtp); | |
443 | ||
444 | config = raop_buffer_get_config(raop_rtp->buffer); | |
067f00ef | 445 | cb_data = raop_rtp->callbacks.audio_init(raop_rtp->callbacks.cls, |
2340bcd3 JVH |
446 | config->bitDepth, |
447 | config->numChannels, | |
448 | config->sampleRate); | |
449 | ||
450 | while (1) { | |
2340bcd3 JVH |
451 | fd_set rfds; |
452 | struct timeval tv; | |
453 | int nfds, ret; | |
454 | ||
b4cc5b07 | 455 | /* Check if we are still running and process callbacks */ |
8e3bf408 | 456 | if (raop_rtp_process_events(raop_rtp, cb_data)) { |
2340bcd3 JVH |
457 | break; |
458 | } | |
2340bcd3 JVH |
459 | |
460 | /* Set timeout value to 5ms */ | |
461 | tv.tv_sec = 0; | |
462 | tv.tv_usec = 5000; | |
463 | ||
464 | /* Get the correct nfds value and set rfds */ | |
465 | FD_ZERO(&rfds); | |
466 | if (stream_fd == -1) { | |
467 | FD_SET(raop_rtp->dsock, &rfds); | |
468 | nfds = raop_rtp->dsock+1; | |
469 | } else { | |
470 | FD_SET(stream_fd, &rfds); | |
471 | nfds = stream_fd+1; | |
472 | } | |
473 | ret = select(nfds, &rfds, NULL, NULL, &tv); | |
474 | if (ret == 0) { | |
475 | /* Timeout happened */ | |
476 | continue; | |
477 | } else if (ret == -1) { | |
478 | /* FIXME: Error happened */ | |
46212791 | 479 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in select"); |
2340bcd3 JVH |
480 | break; |
481 | } | |
482 | if (stream_fd == -1 && FD_ISSET(raop_rtp->dsock, &rfds)) { | |
483 | struct sockaddr_storage saddr; | |
484 | socklen_t saddrlen; | |
485 | ||
46212791 | 486 | logger_log(raop_rtp->logger, LOGGER_INFO, "Accepting client"); |
2340bcd3 JVH |
487 | saddrlen = sizeof(saddr); |
488 | stream_fd = accept(raop_rtp->dsock, (struct sockaddr *)&saddr, &saddrlen); | |
489 | if (stream_fd == -1) { | |
490 | /* FIXME: Error happened */ | |
46212791 | 491 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in accept %d %s", errno, strerror(errno)); |
2340bcd3 JVH |
492 | break; |
493 | } | |
494 | } | |
495 | if (stream_fd != -1 && FD_ISSET(stream_fd, &rfds)) { | |
496 | unsigned int rtplen=0; | |
2340bcd3 JVH |
497 | |
498 | const void *audiobuf; | |
499 | int audiobuflen; | |
500 | ||
501 | ret = recv(stream_fd, (char *)(packet+packetlen), sizeof(packet)-packetlen, 0); | |
502 | if (ret == 0) { | |
503 | /* TCP socket closed */ | |
46212791 | 504 | logger_log(raop_rtp->logger, LOGGER_INFO, "TCP socket closed"); |
2340bcd3 JVH |
505 | break; |
506 | } else if (ret == -1) { | |
507 | /* FIXME: Error happened */ | |
46212791 | 508 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error in recv"); |
2340bcd3 JVH |
509 | break; |
510 | } | |
511 | packetlen += ret; | |
512 | ||
513 | /* Check that we have enough bytes */ | |
514 | if (packetlen < 4) { | |
515 | continue; | |
516 | } | |
517 | if (packet[0] != '$' || packet[1] != '\0') { | |
518 | /* FIXME: Incorrect RTP magic bytes */ | |
519 | break; | |
520 | } | |
521 | rtplen = (packet[2] << 8) | packet[3]; | |
522 | if (rtplen > sizeof(packet)) { | |
523 | /* FIXME: Too long packet */ | |
46212791 | 524 | logger_log(raop_rtp->logger, LOGGER_INFO, "Error, packet too long %d", rtplen); |
2340bcd3 JVH |
525 | break; |
526 | } | |
527 | if (packetlen < 4+rtplen) { | |
528 | continue; | |
529 | } | |
530 | ||
531 | /* Packet is valid, process it */ | |
2340bcd3 JVH |
532 | ret = raop_buffer_queue(raop_rtp->buffer, packet+4, rtplen, 0); |
533 | assert(ret >= 0); | |
534 | ||
535 | /* Remove processed bytes from packet buffer */ | |
536 | memmove(packet, packet+4+rtplen, packetlen-rtplen); | |
537 | packetlen -= 4+rtplen; | |
538 | ||
539 | /* Decode the received frame */ | |
540 | if ((audiobuf = raop_buffer_dequeue(raop_rtp->buffer, &audiobuflen, 1))) { | |
541 | raop_rtp->callbacks.audio_process(raop_rtp->callbacks.cls, cb_data, audiobuf, audiobuflen); | |
542 | } | |
543 | } | |
544 | } | |
545 | ||
546 | /* Close the stream file descriptor */ | |
547 | if (stream_fd != -1) { | |
548 | closesocket(stream_fd); | |
549 | } | |
550 | ||
46212791 | 551 | logger_log(raop_rtp->logger, LOGGER_INFO, "Exiting TCP RAOP thread"); |
2340bcd3 JVH |
552 | raop_rtp->callbacks.audio_destroy(raop_rtp->callbacks.cls, cb_data); |
553 | ||
554 | return 0; | |
555 | } | |
556 | ||
557 | void | |
558 | raop_rtp_start(raop_rtp_t *raop_rtp, int use_udp, unsigned short control_rport, unsigned short timing_rport, | |
559 | unsigned short *control_lport, unsigned short *timing_lport, unsigned short *data_lport) | |
560 | { | |
ba0970e1 JVH |
561 | int use_ipv6 = 0; |
562 | ||
2340bcd3 JVH |
563 | assert(raop_rtp); |
564 | ||
565 | MUTEX_LOCK(raop_rtp->run_mutex); | |
566 | if (raop_rtp->running || !raop_rtp->joined) { | |
567 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
568 | return; | |
569 | } | |
570 | ||
571 | /* Initialize ports and sockets */ | |
572 | raop_rtp->control_rport = control_rport; | |
573 | raop_rtp->timing_rport = timing_rport; | |
ba0970e1 JVH |
574 | if (raop_rtp->remote_saddr.ss_family == AF_INET6) { |
575 | use_ipv6 = 1; | |
576 | } | |
577 | if (raop_rtp_init_sockets(raop_rtp, use_ipv6, use_udp) < 0) { | |
46212791 | 578 | logger_log(raop_rtp->logger, LOGGER_INFO, "Initializing sockets failed"); |
2340bcd3 JVH |
579 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
580 | return; | |
581 | } | |
582 | if (control_lport) *control_lport = raop_rtp->control_lport; | |
583 | if (timing_lport) *timing_lport = raop_rtp->timing_lport; | |
584 | if (data_lport) *data_lport = raop_rtp->data_lport; | |
585 | ||
586 | /* Create the thread and initialize running values */ | |
587 | raop_rtp->running = 1; | |
588 | raop_rtp->joined = 0; | |
589 | if (use_udp) { | |
590 | THREAD_CREATE(raop_rtp->thread, raop_rtp_thread_udp, raop_rtp); | |
591 | } else { | |
592 | THREAD_CREATE(raop_rtp->thread, raop_rtp_thread_tcp, raop_rtp); | |
593 | } | |
594 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
595 | } | |
596 | ||
597 | void | |
598 | raop_rtp_set_volume(raop_rtp_t *raop_rtp, float volume) | |
599 | { | |
600 | assert(raop_rtp); | |
601 | ||
602 | if (volume > 0.0f) { | |
603 | volume = 0.0f; | |
604 | } else if (volume < -144.0f) { | |
605 | volume = -144.0f; | |
606 | } | |
607 | ||
608 | /* Set volume in thread instead */ | |
609 | MUTEX_LOCK(raop_rtp->run_mutex); | |
610 | raop_rtp->volume = volume; | |
8e3bf408 | 611 | raop_rtp->volume_changed = 1; |
2340bcd3 | 612 | MUTEX_UNLOCK(raop_rtp->run_mutex); |
3baaba9d JVH |
613 | } |
614 | ||
615 | void | |
616 | raop_rtp_set_metadata(raop_rtp_t *raop_rtp, const char *data, int datalen) | |
617 | { | |
618 | unsigned char *metadata; | |
619 | ||
620 | assert(raop_rtp); | |
621 | ||
622 | if (datalen <= 0) { | |
623 | return; | |
624 | } | |
625 | metadata = malloc(datalen); | |
626 | assert(metadata); | |
627 | memcpy(metadata, data, datalen); | |
628 | ||
629 | /* Set metadata in thread instead */ | |
630 | MUTEX_LOCK(raop_rtp->run_mutex); | |
631 | raop_rtp->metadata = metadata; | |
632 | raop_rtp->metadata_len = datalen; | |
633 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
634 | } | |
635 | ||
636 | void | |
637 | raop_rtp_set_coverart(raop_rtp_t *raop_rtp, const char *data, int datalen) | |
638 | { | |
639 | unsigned char *coverart; | |
640 | ||
641 | assert(raop_rtp); | |
642 | ||
643 | if (datalen <= 0) { | |
644 | return; | |
645 | } | |
646 | coverart = malloc(datalen); | |
647 | assert(coverart); | |
648 | memcpy(coverart, data, datalen); | |
649 | ||
650 | /* Set coverart in thread instead */ | |
651 | MUTEX_LOCK(raop_rtp->run_mutex); | |
652 | raop_rtp->coverart = coverart; | |
653 | raop_rtp->coverart_len = datalen; | |
654 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
2340bcd3 JVH |
655 | } |
656 | ||
657 | void | |
658 | raop_rtp_flush(raop_rtp_t *raop_rtp, int next_seq) | |
659 | { | |
660 | assert(raop_rtp); | |
661 | ||
662 | /* Call flush in thread instead */ | |
663 | MUTEX_LOCK(raop_rtp->run_mutex); | |
664 | raop_rtp->flush = next_seq; | |
665 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
666 | } | |
667 | ||
668 | void | |
669 | raop_rtp_stop(raop_rtp_t *raop_rtp) | |
670 | { | |
671 | assert(raop_rtp); | |
672 | ||
673 | /* Check that we are running and thread is not | |
674 | * joined (should never be while still running) */ | |
675 | MUTEX_LOCK(raop_rtp->run_mutex); | |
676 | if (!raop_rtp->running || raop_rtp->joined) { | |
677 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
678 | return; | |
679 | } | |
680 | raop_rtp->running = 0; | |
681 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
682 | ||
683 | /* Join the thread */ | |
684 | THREAD_JOIN(raop_rtp->thread); | |
685 | if (raop_rtp->csock != -1) closesocket(raop_rtp->csock); | |
686 | if (raop_rtp->tsock != -1) closesocket(raop_rtp->tsock); | |
687 | if (raop_rtp->dsock != -1) closesocket(raop_rtp->dsock); | |
688 | ||
689 | /* Flush buffer into initial state */ | |
690 | raop_buffer_flush(raop_rtp->buffer, -1); | |
691 | ||
692 | /* Mark thread as joined */ | |
693 | MUTEX_LOCK(raop_rtp->run_mutex); | |
694 | raop_rtp->joined = 1; | |
695 | MUTEX_UNLOCK(raop_rtp->run_mutex); | |
696 | } |