2 * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program 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
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file ortp_send.c para_server's ortp sender */
21 #include <ortp/ortp.h>
23 #include "server.cmdline.h"
31 /** \cond convert in_addr to ascii */
32 #define TARGET_ADDR(oc) inet_ntoa((oc)->addr)
35 /** describes one entry in the list of targets for the ortp sender */
39 /** whether the ortp sender is activated */
41 /** the ortp timestamp increases by this amount */
43 /** the currently used timestamp for this target */
45 /** the position of this target in the list of targets */
46 struct list_head node
;
49 /** non-zero if at least one chunk has been sent to this target */
51 /** the session pointer from libortp */
55 static struct list_head targets
;
56 static struct sender
*self
;
58 static void ortp_delete_target(struct ortp_target
*ot
, const char *msg
)
60 PARA_NOTICE_LOG("deleting %s:%d (%s) from list\n", TARGET_ADDR(ot
),
63 rtp_session_destroy(ot
->session
);
70 static void ortp_send_buf(char *buf
, int len
, long unsigned chunks_sent
)
72 struct ortp_target
*ot
, *tmp
;
75 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
79 WRITE_CHUNK_TS(buf
, ot
->chunk_ts
);
80 ts
= ot
->chunk_ts
* chunks_sent
;
81 ret
= rtp_session_send_with_ts(ot
->session
, buf
, len
, ts
);
84 ortp_delete_target(ot
, "send error");
86 PARA_NOTICE_LOG("short write %d\n", ret
);
90 static int set_multicast(RtpSession
*s
)
92 unsigned char loop
= 1;
95 ret
= setsockopt(s
->rtp
.socket
,
96 IPPROTO_IP
, IP_MULTICAST_LOOP
, &loop
, sizeof(loop
));
98 PARA_ERROR_LOG("IP_MULTICAST_LOOP error %d\n", ret
);
104 static void ortp_init_session(struct ortp_target
*ot
)
109 PARA_NOTICE_LOG("sending to udp %s:%d\n", TARGET_ADDR(ot
), ot
->port
);
110 ot
->session
= rtp_session_new(RTP_SESSION_SENDONLY
);
114 if (conf
.ortp_jitter_compensation_arg
) {
115 rtp_session_enable_adaptive_jitter_compensation(ot
->session
, TRUE
);
116 rtp_session_set_jitter_compensation(ot
->session
,
117 conf
.ortp_jitter_compensation_arg
);
119 /* always successful */
120 rtp_session_set_send_payload_type(s
, PAYLOAD_AUDIO_CONTINUOUS
);
121 ret
= rtp_session_set_remote_addr(s
, TARGET_ADDR(ot
), ot
->port
);
123 rtp_session_destroy(ot
->session
);
131 static void ortp_shutdown_targets(void)
133 char buf
[ORTP_AUDIO_HEADER_LEN
];
134 struct ortp_target
*ot
, *tmp
;
136 WRITE_PACKET_TYPE(buf
, ORTP_EOF
);
137 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
138 if (!ot
->session
|| !ot
->streaming
)
140 PARA_INFO_LOG("sending eof to ortp target %s:%d, ts = %d\n",
141 TARGET_ADDR(ot
), ot
->port
, ot
->last_ts
);
142 rtp_session_send_with_ts(ot
->session
, buf
,
143 ORTP_AUDIO_HEADER_LEN
, ot
->last_ts
);
146 rtp_session_reset(ot
->session
);
150 static int need_extra_header(long unsigned current_chunk
)
152 static struct timeval last_header
;
153 struct timeval now
, diff
;
157 gettimeofday(&now
, NULL
);
158 tv_diff(&now
, &last_header
, &diff
);
159 if (tv2ms(&diff
) < conf
.ortp_header_interval_arg
)
165 static void ortp_send(long unsigned current_chunk
, long unsigned chunks_sent
,
166 const char *buf
, size_t len
)
168 struct ortp_target
*ot
, *tmp
;
171 int packet_type
= ORTP_DATA
;
172 char *sendbuf
, *header_buf
= NULL
;
173 struct timeval
*chunk_tv
;
175 if (self
->status
!= SENDER_ON
)
177 chunk_tv
= afs_chunk_time();
180 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
182 ortp_init_session(ot
);
187 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
,
189 // PARA_DEBUG_LOG("len: %d, ts: %lu, ts: %d\n",
190 // len, ot->chunk_ts * chunks_sent, ot->chunk_ts);
193 if (list_empty(&targets
))
195 header_buf
= afs_get_header(&header_len
);
196 if (!need_extra_header(current_chunk
))
198 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
199 sendbuf
= para_malloc(sendbuf_len
);
201 packet_type
= ORTP_BOF
;
203 packet_type
= ORTP_HEADER
;
204 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
205 WRITE_CHUNK_TIME(sendbuf
, chunk_tv
->tv_usec
);
206 WRITE_STREAM_TYPE(sendbuf
, header_buf
? 1 : 0);
207 WRITE_HEADER_LEN(sendbuf
, header_len
);
209 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
211 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
212 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
216 static int ortp_com_on(__a_unused
struct sender_command_data
*scd
)
219 self
->status
= SENDER_ON
;
223 static int ortp_com_off(__a_unused
struct sender_command_data
*scd
)
225 ortp_shutdown_targets();
226 self
->status
= SENDER_OFF
;
230 static int ortp_com_delete(struct sender_command_data
*scd
)
232 char *a
= para_strdup(inet_ntoa(scd
->addr
));
233 struct ortp_target
*ot
, *tmp
;
234 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
235 if (scd
->port
!= ot
->port
)
237 if (strcmp(TARGET_ADDR(ot
), a
))
239 ortp_delete_target(ot
, "com_delete");
244 static void ortp_add_target(int port
, struct in_addr
*addr
)
246 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
249 PARA_INFO_LOG("adding to target list (%s:%d)\n",
250 TARGET_ADDR(ot
), ot
->port
);
251 list_add(&ot
->node
, &targets
);
254 static int ortp_com_add(struct sender_command_data
*scd
)
256 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
257 ortp_add_target(port
, &scd
->addr
);
261 static char *ortp_info(void)
263 struct ortp_target
*ot
;
264 char *ret
, *tgts
= NULL
;
266 list_for_each_entry(ot
, &targets
, node
) {
267 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
268 TARGET_ADDR(ot
), ot
->port
);
274 "ortp default port: udp %d\n"
275 "ortp targets: %s\n",
276 (self
->status
== SENDER_ON
)? "on" : "off",
277 conf
.ortp_default_port_arg
,
278 tgts
? tgts
: "(none)"
284 static void ortp_init_target_list(void)
288 INIT_LIST_HEAD(&targets
);
289 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
290 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
291 char *p
= strchr(arg
, ':');
298 if (!inet_aton(arg
, &addr
))
301 if (port
< 0 || port
> 65535)
302 port
= conf
.ortp_default_port_arg
;
303 ortp_add_target(port
, &addr
);
306 PARA_CRIT_LOG("syntax error for ortp_target option "
307 "#%d, ignoring\n", i
);
314 static void ortp_pre_select(__a_unused
int *max_fileno
, __a_unused fd_set
*rfds
,
315 __a_unused fd_set
*wfds
)
320 static char *ortp_help(void)
324 "usage: {add|delete} IP port\n"
325 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
330 * the init function of para_server's ortp sender
332 * \param s pointer to the http sender struct
334 * It initializes all function pointers of \a s and the list of ortp targets.
336 void ortp_send_init(struct sender
*s
)
339 INIT_LIST_HEAD(&targets
);
343 s
->pre_select
= ortp_pre_select
;
344 s
->post_select
= NULL
;
345 s
->shutdown_clients
= ortp_shutdown_targets
;
346 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
347 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
348 s
->client_cmds
[SENDER_DENY
] = NULL
;
349 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
350 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
351 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
353 s
->status
= SENDER_OFF
;
354 ortp_init_target_list();
355 if (!conf
.ortp_no_autostart_given
)
356 s
->status
= SENDER_ON
;
357 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");