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 void ortp_init_session(struct ortp_target
*ot
)
95 PARA_NOTICE_LOG("sending to udp %s:%d\n", TARGET_ADDR(ot
), ot
->port
);
96 ot
->session
= rtp_session_new(RTP_SESSION_SENDONLY
);
100 if (conf
.ortp_jitter_compensation_arg
) {
101 rtp_session_enable_adaptive_jitter_compensation(ot
->session
, TRUE
);
102 rtp_session_set_jitter_compensation(ot
->session
,
103 conf
.ortp_jitter_compensation_arg
);
105 /* always successful */
106 rtp_session_set_send_payload_type(s
, PAYLOAD_AUDIO_CONTINUOUS
);
107 ret
= rtp_session_set_remote_addr(s
, TARGET_ADDR(ot
), ot
->port
);
109 rtp_session_destroy(ot
->session
);
115 static void ortp_shutdown_targets(void)
117 char buf
[ORTP_AUDIO_HEADER_LEN
];
118 struct ortp_target
*ot
, *tmp
;
120 WRITE_PACKET_TYPE(buf
, ORTP_EOF
);
121 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
122 if (!ot
->session
|| !ot
->streaming
)
124 PARA_INFO_LOG("sending eof to ortp target %s:%d, ts = %d\n",
125 TARGET_ADDR(ot
), ot
->port
, ot
->last_ts
);
126 rtp_session_send_with_ts(ot
->session
, buf
,
127 ORTP_AUDIO_HEADER_LEN
, ot
->last_ts
);
130 rtp_session_reset(ot
->session
);
134 static int need_extra_header(long unsigned current_chunk
)
136 static struct timeval last_header
;
137 struct timeval now
, diff
;
141 gettimeofday(&now
, NULL
);
142 tv_diff(&now
, &last_header
, &diff
);
143 if (tv2ms(&diff
) < conf
.ortp_header_interval_arg
)
149 static void ortp_send(long unsigned current_chunk
, long unsigned chunks_sent
,
150 const char *buf
, size_t len
)
152 struct ortp_target
*ot
, *tmp
;
155 int packet_type
= ORTP_DATA
;
156 char *sendbuf
, *header_buf
= NULL
;
157 struct timeval
*chunk_tv
;
159 if (self
->status
!= SENDER_ON
)
161 chunk_tv
= afs_chunk_time();
164 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
166 ortp_init_session(ot
);
171 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
,
173 // PARA_DEBUG_LOG("len: %d, ts: %lu, ts: %d\n",
174 // len, ot->chunk_ts * chunks_sent, ot->chunk_ts);
177 if (list_empty(&targets
))
179 header_buf
= afs_get_header(&header_len
);
180 if (!need_extra_header(current_chunk
))
182 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
183 sendbuf
= para_malloc(sendbuf_len
);
185 packet_type
= ORTP_BOF
;
187 packet_type
= ORTP_HEADER
;
188 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
189 WRITE_CHUNK_TIME(sendbuf
, chunk_tv
->tv_usec
);
190 WRITE_STREAM_TYPE(sendbuf
, header_buf
? 1 : 0);
191 WRITE_HEADER_LEN(sendbuf
, header_len
);
193 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
195 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
196 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
200 static int ortp_com_on(__a_unused
struct sender_command_data
*scd
)
203 self
->status
= SENDER_ON
;
207 static int ortp_com_off(__a_unused
struct sender_command_data
*scd
)
209 ortp_shutdown_targets();
210 self
->status
= SENDER_OFF
;
214 static int ortp_com_delete(struct sender_command_data
*scd
)
216 char *a
= para_strdup(inet_ntoa(scd
->addr
));
217 struct ortp_target
*ot
, *tmp
;
218 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
219 if (scd
->port
!= ot
->port
)
221 if (strcmp(TARGET_ADDR(ot
), a
))
223 ortp_delete_target(ot
, "com_delete");
228 static void ortp_add_target(int port
, struct in_addr
*addr
)
230 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
233 PARA_INFO_LOG("adding to target list (%s:%d)\n",
234 TARGET_ADDR(ot
), ot
->port
);
235 list_add(&ot
->node
, &targets
);
238 static int ortp_com_add(struct sender_command_data
*scd
)
240 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
241 ortp_add_target(port
, &scd
->addr
);
245 static char *ortp_info(void)
247 struct ortp_target
*ot
;
248 char *ret
, *tgts
= NULL
;
250 list_for_each_entry(ot
, &targets
, node
) {
251 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
252 TARGET_ADDR(ot
), ot
->port
);
258 "ortp default port: udp %d\n"
259 "ortp targets: %s\n",
260 (self
->status
== SENDER_ON
)? "on" : "off",
261 conf
.ortp_default_port_arg
,
262 tgts
? tgts
: "(none)"
268 static void ortp_init_target_list(void)
272 INIT_LIST_HEAD(&targets
);
273 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
274 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
275 char *p
= strchr(arg
, ':');
282 if (!inet_aton(arg
, &addr
))
285 if (port
< 0 || port
> 65535)
286 port
= conf
.ortp_default_port_arg
;
287 ortp_add_target(port
, &addr
);
290 PARA_CRIT_LOG("syntax error for ortp_target option "
291 "#%d, ignoring\n", i
);
298 static void ortp_pre_select(__a_unused
int *max_fileno
, __a_unused fd_set
*rfds
,
299 __a_unused fd_set
*wfds
)
304 static char *ortp_help(void)
308 "usage: {add|delete} IP port\n"
309 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
314 * the init function of para_server's ortp sender
316 * \param s pointer to the http sender struct
318 * It initializes all function pointers of \a s and the list of ortp targets.
320 void ortp_send_init(struct sender
*s
)
323 INIT_LIST_HEAD(&targets
);
327 s
->pre_select
= ortp_pre_select
;
328 s
->post_select
= NULL
;
329 s
->shutdown_clients
= ortp_shutdown_targets
;
330 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
331 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
332 s
->client_cmds
[SENDER_DENY
] = NULL
;
333 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
334 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
335 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
337 s
->status
= SENDER_OFF
;
338 ortp_init_target_list();
339 if (!conf
.ortp_no_autostart_given
)
340 s
->status
= SENDER_ON
;
341 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");