fbd4077e828e7e945fc8c0c4497e56f0dcacffa8
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 int numtargets
;
58 static struct list_head targets
;
59 static struct sender
*self
;
61 static void ortp_delete_target(struct ortp_target
*ot
, const char *msg
)
63 PARA_NOTICE_LOG("deleting %s:%d (%s) from list\n", TARGET_ADDR(ot
),
66 rtp_session_destroy(ot
->session
);
74 static void ortp_send_buf(char *buf
, int len
, long unsigned chunks_sent
)
76 struct ortp_target
*ot
, *tmp
;
79 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
82 gettimeofday(&now
, NULL
);
85 WRITE_CHUNK_TS(buf
, ot
->chunk_ts
);
86 ts
= ot
->chunk_ts
* chunks_sent
;
87 ret
= rtp_session_send_with_ts(ot
->session
, buf
, len
, ts
);
90 ortp_delete_target(ot
, "send error");
92 PARA_NOTICE_LOG("short write %d\n", ret
);
96 static void ortp_init_session(struct ortp_target
*ot
)
101 PARA_NOTICE_LOG("sending to udp %s:%d\n", TARGET_ADDR(ot
), ot
->port
);
102 ot
->session
= rtp_session_new(RTP_SESSION_SENDONLY
);
106 // rtp_session_set_jitter_compensation(ot->session, 100);
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)
120 struct ortp_target
*ot
, *tmp
;
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", TARGET_ADDR(ot
), ot
->port
,
128 rtp_session_send_with_ts(ot
->session
, buf
, 1, ot
->last_ts
);
131 rtp_session_reset(ot
->session
);
135 static int need_extra_header(struct audio_format
*af
, long unsigned chunks_sent
)
137 /* FIXME: No need to compute this on every run */
138 int mod
= conf
.ortp_header_interval_arg
/ (tv2ms(&af
->chunk_tv
) + 1);
139 if (mod
&& (chunks_sent
% mod
))
144 static void ortp_send(struct audio_format
*af
, long unsigned current_chunk
,
145 long unsigned chunks_sent
, const char *buf
, size_t len
)
147 struct ortp_target
*ot
, *tmp
;
150 int packet_type
= ORTP_DATA
, stream_type
= af
&& af
->get_header_info
; /* header stream? */
151 char *sendbuf
, *header_buf
= NULL
;
153 if (self
->status
!= SENDER_ON
)
155 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
157 ortp_init_session(ot
);
162 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
, tv2ms(&af
->chunk_tv
));
163 // PARA_DEBUG_LOG("len: %d, af: %p, ts: %d\n", len, af, ot->chunk_ts);
166 if (list_empty(&targets
))
169 header_buf
= af
->get_header_info(&header_len
);
170 if (!need_extra_header(af
, chunks_sent
))
173 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
174 sendbuf
= para_malloc(sendbuf_len
);
176 packet_type
= ORTP_BOF
;
178 packet_type
= ORTP_HEADER
;
179 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
180 WRITE_CHUNK_TIME(sendbuf
, af
->chunk_tv
.tv_usec
);
181 WRITE_STREAM_TYPE(sendbuf
, stream_type
);
182 WRITE_HEADER_LEN(sendbuf
, header_len
);
184 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
186 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
187 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
191 static int ortp_com_on(struct sender_command_data
*scd
)
194 self
->status
= SENDER_ON
;
198 static int ortp_com_off(struct sender_command_data
*scd
)
200 ortp_shutdown_targets();
201 self
->status
= SENDER_OFF
;
205 static int ortp_com_delete(struct sender_command_data
*scd
)
207 char *a
= para_strdup(inet_ntoa(scd
->addr
));
208 struct ortp_target
*ot
, *tmp
;
209 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
210 if (scd
->port
!= ot
->port
)
212 if (strcmp(TARGET_ADDR(ot
), a
))
214 ortp_delete_target(ot
, "com_delete");
219 static void ortp_add_target(int port
, struct in_addr
*addr
)
221 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
224 PARA_INFO_LOG("adding to target list (%s:%d)\n",
225 TARGET_ADDR(ot
), ot
->port
);
226 list_add(&ot
->node
, &targets
);
229 static int ortp_com_add(struct sender_command_data
*scd
)
231 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
232 ortp_add_target(port
, &scd
->addr
);
236 static char *ortp_info(void)
238 struct ortp_target
*ot
;
239 char *ret
, *tgts
= NULL
;
241 list_for_each_entry(ot
, &targets
, node
) {
242 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
243 TARGET_ADDR(ot
), ot
->port
);
249 "ortp default port: udp %d\n"
250 "ortp targets: %s\n",
251 (self
->status
== SENDER_ON
)? "on" : "off",
252 conf
.ortp_default_port_arg
,
253 tgts
? tgts
: "(none)"
259 static void ortp_init_target_list(void)
263 INIT_LIST_HEAD(&targets
);
264 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
265 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
266 char *p
= strchr(arg
, ':');
273 if (!inet_aton(arg
, &addr
))
276 if (port
< 0 || port
> 65535)
277 port
= conf
.ortp_default_port_arg
;
278 ortp_add_target(port
, &addr
);
281 PARA_CRIT_LOG("syntax error for ortp_target option "
282 "#%d, ignoring\n", i
);
289 static void ortp_pre_select(struct audio_format
*af
, int *max_fileno
,
290 fd_set
*rfds
, fd_set
*wfds
)
295 static char *ortp_help(void)
299 "usage: {add|delete} IP port\n"
300 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
305 * the init function of para_server's ortp sender
307 * \param s pointer to the http sender struct
309 * It initializes all function pointers of \a s and the list of ortp targets.
311 void ortp_send_init(struct sender
*s
)
314 INIT_LIST_HEAD(&targets
);
318 s
->pre_select
= ortp_pre_select
;
319 s
->post_select
= NULL
;
320 s
->shutdown_clients
= ortp_shutdown_targets
;
321 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
322 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
323 s
->client_cmds
[SENDER_DENY
] = NULL
;
324 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
325 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
326 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
328 s
->status
= SENDER_OFF
;
329 ortp_init_target_list();
330 if (!conf
.ortp_no_autostart_given
)
331 s
->status
= SENDER_ON
;
332 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");