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 extern struct gengetopt_args_info conf
;
37 /** describes one entry in the list of targets for the ortp sender */
41 /** whether the ortp sender is activated */
43 /** the ortp timestamp increases by this amount */
45 /** the currently used timestamp for this target */
47 /** the position of this target in the list of targets */
48 struct list_head node
;
51 /** non-zero if at least one chunk has been sent to this target */
53 /** the session pointer from libortp */
57 static struct list_head targets
;
58 static struct sender
*self
;
60 static void ortp_delete_target(struct ortp_target
*ot
, const char *msg
)
62 PARA_NOTICE_LOG("deleting %s:%d (%s) from list\n", TARGET_ADDR(ot
),
65 rtp_session_destroy(ot
->session
);
72 static void ortp_send_buf(char *buf
, int len
, long unsigned chunks_sent
)
74 struct ortp_target
*ot
, *tmp
;
77 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
81 WRITE_CHUNK_TS(buf
, ot
->chunk_ts
);
82 ts
= ot
->chunk_ts
* chunks_sent
;
83 ret
= rtp_session_send_with_ts(ot
->session
, buf
, len
, ts
);
86 ortp_delete_target(ot
, "send error");
88 PARA_NOTICE_LOG("short write %d\n", ret
);
92 static void ortp_init_session(struct ortp_target
*ot
)
97 PARA_NOTICE_LOG("sending to udp %s:%d\n", TARGET_ADDR(ot
), ot
->port
);
98 ot
->session
= rtp_session_new(RTP_SESSION_SENDONLY
);
102 if (conf
.ortp_jitter_compensation_arg
) {
103 rtp_session_enable_adaptive_jitter_compensation(ot
->session
, TRUE
);
104 rtp_session_set_jitter_compensation(ot
->session
,
105 conf
.ortp_jitter_compensation_arg
);
107 /* always successful */
108 rtp_session_set_send_payload_type(s
, PAYLOAD_AUDIO_CONTINUOUS
);
109 ret
= rtp_session_set_remote_addr(s
, TARGET_ADDR(ot
), ot
->port
);
111 rtp_session_destroy(ot
->session
);
117 static void ortp_shutdown_targets(void)
119 char buf
[ORTP_AUDIO_HEADER_LEN
];
120 struct ortp_target
*ot
, *tmp
;
122 WRITE_PACKET_TYPE(buf
, ORTP_EOF
);
123 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
124 if (!ot
->session
|| !ot
->streaming
)
126 PARA_INFO_LOG("sending eof to ortp target %s:%d, ts = %d\n",
127 TARGET_ADDR(ot
), ot
->port
, ot
->last_ts
);
128 rtp_session_send_with_ts(ot
->session
, buf
,
129 ORTP_AUDIO_HEADER_LEN
, ot
->last_ts
);
132 rtp_session_reset(ot
->session
);
136 static int need_extra_header(long unsigned current_chunk
)
138 static struct timeval last_header
;
139 struct timeval now
, diff
;
143 gettimeofday(&now
, NULL
);
144 tv_diff(&now
, &last_header
, &diff
);
145 if (tv2ms(&diff
) < conf
.ortp_header_interval_arg
)
151 static void ortp_send(long unsigned current_chunk
, long unsigned chunks_sent
,
152 const char *buf
, size_t len
)
154 struct ortp_target
*ot
, *tmp
;
157 int packet_type
= ORTP_DATA
;
158 char *sendbuf
, *header_buf
= NULL
;
159 struct timeval
*chunk_tv
;
161 if (self
->status
!= SENDER_ON
)
163 chunk_tv
= afs_chunk_time();
166 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
168 ortp_init_session(ot
);
173 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
,
175 // PARA_DEBUG_LOG("len: %d, ts: %lu, ts: %d\n",
176 // len, ot->chunk_ts * chunks_sent, ot->chunk_ts);
179 if (list_empty(&targets
))
181 header_buf
= afs_get_header(&header_len
);
182 if (!need_extra_header(current_chunk
))
184 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
185 sendbuf
= para_malloc(sendbuf_len
);
187 packet_type
= ORTP_BOF
;
189 packet_type
= ORTP_HEADER
;
190 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
191 WRITE_CHUNK_TIME(sendbuf
, chunk_tv
->tv_usec
);
192 WRITE_STREAM_TYPE(sendbuf
, header_buf
? 1 : 0);
193 WRITE_HEADER_LEN(sendbuf
, header_len
);
195 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
197 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
198 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
202 static int ortp_com_on(__a_unused
struct sender_command_data
*scd
)
205 self
->status
= SENDER_ON
;
209 static int ortp_com_off(__a_unused
struct sender_command_data
*scd
)
211 ortp_shutdown_targets();
212 self
->status
= SENDER_OFF
;
216 static int ortp_com_delete(struct sender_command_data
*scd
)
218 char *a
= para_strdup(inet_ntoa(scd
->addr
));
219 struct ortp_target
*ot
, *tmp
;
220 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
221 if (scd
->port
!= ot
->port
)
223 if (strcmp(TARGET_ADDR(ot
), a
))
225 ortp_delete_target(ot
, "com_delete");
230 static void ortp_add_target(int port
, struct in_addr
*addr
)
232 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
235 PARA_INFO_LOG("adding to target list (%s:%d)\n",
236 TARGET_ADDR(ot
), ot
->port
);
237 list_add(&ot
->node
, &targets
);
240 static int ortp_com_add(struct sender_command_data
*scd
)
242 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
243 ortp_add_target(port
, &scd
->addr
);
247 static char *ortp_info(void)
249 struct ortp_target
*ot
;
250 char *ret
, *tgts
= NULL
;
252 list_for_each_entry(ot
, &targets
, node
) {
253 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
254 TARGET_ADDR(ot
), ot
->port
);
260 "ortp default port: udp %d\n"
261 "ortp targets: %s\n",
262 (self
->status
== SENDER_ON
)? "on" : "off",
263 conf
.ortp_default_port_arg
,
264 tgts
? tgts
: "(none)"
270 static void ortp_init_target_list(void)
274 INIT_LIST_HEAD(&targets
);
275 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
276 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
277 char *p
= strchr(arg
, ':');
284 if (!inet_aton(arg
, &addr
))
287 if (port
< 0 || port
> 65535)
288 port
= conf
.ortp_default_port_arg
;
289 ortp_add_target(port
, &addr
);
292 PARA_CRIT_LOG("syntax error for ortp_target option "
293 "#%d, ignoring\n", i
);
300 static void ortp_pre_select(__a_unused
int *max_fileno
, __a_unused fd_set
*rfds
,
301 __a_unused fd_set
*wfds
)
306 static char *ortp_help(void)
310 "usage: {add|delete} IP port\n"
311 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
316 * the init function of para_server's ortp sender
318 * \param s pointer to the http sender struct
320 * It initializes all function pointers of \a s and the list of ortp targets.
322 void ortp_send_init(struct sender
*s
)
325 INIT_LIST_HEAD(&targets
);
329 s
->pre_select
= ortp_pre_select
;
330 s
->post_select
= NULL
;
331 s
->shutdown_clients
= ortp_shutdown_targets
;
332 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
333 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
334 s
->client_cmds
[SENDER_DENY
] = NULL
;
335 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
336 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
337 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
339 s
->status
= SENDER_OFF
;
340 ortp_init_target_list();
341 if (!conf
.ortp_no_autostart_given
)
342 s
->status
= SENDER_ON
;
343 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");