2 * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file ortp_send.c para_server's ortp sender */
10 #include <ortp/port.h>
12 #include "server.cmdline.h"
22 /** \cond convert in_addr to ascii */
23 #define TARGET_ADDR(oc) inet_ntoa((oc)->addr)
26 /** describes one entry in the list of targets for the ortp sender */
30 /** whether the ortp sender is activated */
32 /** the ortp timestamp increases by this amount */
34 /** the currently used timestamp for this target */
36 /** the position of this target in the list of targets */
37 struct list_head node
;
40 /** non-zero if at least one chunk has been sent to this target */
42 /** the session pointer from libortp */
46 static struct list_head targets
;
47 static struct sender
*self
;
49 static void ortp_delete_target(struct ortp_target
*ot
, const char *msg
)
51 PARA_NOTICE_LOG("deleting %s:%d (%s) from list\n", TARGET_ADDR(ot
),
54 rtp_session_destroy(ot
->session
);
61 static void ortp_send_buf(char *buf
, size_t len
, long unsigned chunks_sent
)
63 struct ortp_target
*ot
, *tmp
;
64 int ret
, ortp_len
= len
; /* rtp_session_send_with_ts expects int */
68 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
72 WRITE_CHUNK_TS(buf
, ot
->chunk_ts
);
73 ts
= ot
->chunk_ts
* chunks_sent
;
74 ret
= rtp_session_send_with_ts(ot
->session
,
75 (unsigned char*)buf
, ortp_len
, ts
);
78 ortp_delete_target(ot
, "send error");
80 PARA_NOTICE_LOG("short write %d\n", ret
);
84 static int set_multicast(RtpSession
*s
)
86 unsigned char loop
= 1;
89 ret
= setsockopt(s
->rtp
.socket
,
90 IPPROTO_IP
, IP_MULTICAST_LOOP
, &loop
, sizeof(loop
));
92 PARA_ERROR_LOG("IP_MULTICAST_LOOP error %d\n", ret
);
98 static void ortp_init_session(struct ortp_target
*ot
)
103 PARA_NOTICE_LOG("sending to udp %s:%d\n", TARGET_ADDR(ot
), ot
->port
);
104 ot
->session
= rtp_session_new(RTP_SESSION_SENDONLY
);
108 if (conf
.ortp_jitter_compensation_arg
) {
109 rtp_session_enable_adaptive_jitter_compensation(ot
->session
, TRUE
);
110 rtp_session_set_jitter_compensation(ot
->session
,
111 conf
.ortp_jitter_compensation_arg
);
113 /* always successful */
114 rtp_session_set_send_payload_type(s
, PAYLOAD_AUDIO_CONTINUOUS
);
115 ret
= rtp_session_set_remote_addr(s
, TARGET_ADDR(ot
), ot
->port
);
117 rtp_session_destroy(ot
->session
);
125 static void ortp_shutdown_targets(void)
127 unsigned char buf
[ORTP_AUDIO_HEADER_LEN
];
128 struct ortp_target
*ot
, *tmp
;
130 WRITE_PACKET_TYPE(buf
, ORTP_EOF
);
131 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
132 if (!ot
->session
|| !ot
->streaming
)
134 PARA_INFO_LOG("sending eof to ortp target %s:%d, ts = %d\n",
135 TARGET_ADDR(ot
), ot
->port
, ot
->last_ts
);
136 rtp_session_send_with_ts(ot
->session
, buf
,
137 ORTP_AUDIO_HEADER_LEN
, ot
->last_ts
);
140 rtp_session_reset(ot
->session
);
144 static int need_extra_header(long unsigned current_chunk
)
146 static struct timeval last_header
;
147 struct timeval now
, diff
;
151 gettimeofday(&now
, NULL
);
152 tv_diff(&now
, &last_header
, &diff
);
153 if (tv2ms(&diff
) < conf
.ortp_header_interval_arg
)
159 static void ortp_send(long unsigned current_chunk
, long unsigned chunks_sent
,
160 const char *buf
, size_t len
)
162 struct ortp_target
*ot
, *tmp
;
164 unsigned header_len
= 0;
165 int packet_type
= ORTP_DATA
;
166 char *sendbuf
, *header_buf
= NULL
;
167 struct timeval
*chunk_tv
;
169 if (self
->status
!= SENDER_ON
)
171 chunk_tv
= vss_chunk_time();
174 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
176 ortp_init_session(ot
);
181 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
,
182 (int)tv2ms(chunk_tv
));
183 // PARA_DEBUG_LOG("len: %d, ts: %lu, ts: %d\n",
184 // len, ot->chunk_ts * chunks_sent, ot->chunk_ts);
187 if (list_empty(&targets
))
189 header_buf
= vss_get_header(&header_len
);
190 if (!need_extra_header(current_chunk
))
192 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
193 sendbuf
= para_malloc(sendbuf_len
);
195 packet_type
= ORTP_BOF
;
197 packet_type
= ORTP_HEADER
;
198 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
199 WRITE_CHUNK_TIME(sendbuf
, chunk_tv
->tv_usec
);
200 WRITE_STREAM_TYPE(sendbuf
, header_buf
? 1 : 0);
201 WRITE_HEADER_LEN(sendbuf
, header_len
);
203 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
205 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
206 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
210 static int ortp_com_on(__a_unused
struct sender_command_data
*scd
)
213 self
->status
= SENDER_ON
;
217 static int ortp_com_off(__a_unused
struct sender_command_data
*scd
)
219 ortp_shutdown_targets();
220 self
->status
= SENDER_OFF
;
224 static int ortp_com_delete(struct sender_command_data
*scd
)
226 char *a
= para_strdup(inet_ntoa(scd
->addr
));
227 struct ortp_target
*ot
, *tmp
;
228 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
229 if (scd
->port
!= ot
->port
)
231 if (strcmp(TARGET_ADDR(ot
), a
))
233 ortp_delete_target(ot
, "com_delete");
238 static void ortp_add_target(int port
, struct in_addr
*addr
)
240 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
243 PARA_INFO_LOG("adding to target list (%s:%d)\n",
244 TARGET_ADDR(ot
), ot
->port
);
245 para_list_add(&ot
->node
, &targets
);
248 static int ortp_com_add(struct sender_command_data
*scd
)
250 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
251 ortp_add_target(port
, &scd
->addr
);
255 static char *ortp_info(void)
257 struct ortp_target
*ot
;
258 char *ret
, *tgts
= NULL
;
260 list_for_each_entry(ot
, &targets
, node
) {
261 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
262 TARGET_ADDR(ot
), ot
->port
);
268 "ortp default port: udp %d\n"
269 "ortp targets: %s\n",
270 (self
->status
== SENDER_ON
)? "on" : "off",
271 conf
.ortp_default_port_arg
,
272 tgts
? tgts
: "(none)"
278 static void ortp_init_target_list(void)
282 INIT_LIST_HEAD(&targets
);
283 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
284 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
285 char *p
= strchr(arg
, ':');
292 if (!inet_aton(arg
, &addr
))
295 if (port
< 0 || port
> 65535)
296 port
= conf
.ortp_default_port_arg
;
297 ortp_add_target(port
, &addr
);
300 PARA_CRIT_LOG("syntax error for ortp_target option "
301 "#%d, ignoring\n", i
);
308 static void ortp_pre_select(__a_unused
int *max_fileno
, __a_unused fd_set
*rfds
,
309 __a_unused fd_set
*wfds
)
314 static char *ortp_help(void)
318 "usage: {add|delete} IP port\n"
319 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
324 * the init function of para_server's ortp sender
326 * \param s pointer to the http sender struct
328 * It initializes all function pointers of \a s and the list of ortp targets.
330 void ortp_send_init(struct sender
*s
)
333 INIT_LIST_HEAD(&targets
);
337 s
->pre_select
= ortp_pre_select
;
338 s
->post_select
= NULL
;
339 s
->shutdown_clients
= ortp_shutdown_targets
;
340 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
341 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
342 s
->client_cmds
[SENDER_DENY
] = NULL
;
343 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
344 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
345 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
347 s
->status
= SENDER_OFF
;
348 ortp_init_target_list();
349 if (!conf
.ortp_no_autostart_given
)
350 s
->status
= SENDER_ON
;
351 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");