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"
20 /** \cond convert in_addr to ascii */
21 #define TARGET_ADDR(oc) inet_ntoa((oc)->addr)
24 /** describes one entry in the list of targets for the ortp sender */
28 /** whether the ortp sender is activated */
30 /** the ortp timestamp increases by this amount */
32 /** the currently used timestamp for this target */
34 /** the position of this target in the list of targets */
35 struct list_head node
;
38 /** non-zero if at least one chunk has been sent to this target */
40 /** the session pointer from libortp */
44 static struct list_head targets
;
45 static struct sender
*self
;
47 static void ortp_delete_target(struct ortp_target
*ot
, const char *msg
)
49 PARA_NOTICE_LOG("deleting %s:%d (%s) from list\n", TARGET_ADDR(ot
),
52 rtp_session_destroy(ot
->session
);
59 static void ortp_send_buf(char *buf
, size_t len
, long unsigned chunks_sent
)
61 struct ortp_target
*ot
, *tmp
;
62 int ret
, ortp_len
= len
; /* rtp_session_send_with_ts expects int */
66 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
70 WRITE_CHUNK_TS(buf
, ot
->chunk_ts
);
71 ts
= ot
->chunk_ts
* chunks_sent
;
72 ret
= rtp_session_send_with_ts(ot
->session
,
73 (unsigned char*)buf
, ortp_len
, ts
);
76 ortp_delete_target(ot
, "send error");
78 PARA_NOTICE_LOG("short write %d\n", ret
);
82 static int set_multicast(RtpSession
*s
)
84 unsigned char loop
= 1;
87 ret
= setsockopt(s
->rtp
.socket
,
88 IPPROTO_IP
, IP_MULTICAST_LOOP
, &loop
, sizeof(loop
));
90 PARA_ERROR_LOG("IP_MULTICAST_LOOP error %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 if (conf
.ortp_jitter_compensation_arg
) {
107 rtp_session_enable_adaptive_jitter_compensation(ot
->session
, TRUE
);
108 rtp_session_set_jitter_compensation(ot
->session
,
109 conf
.ortp_jitter_compensation_arg
);
111 /* always successful */
112 rtp_session_set_send_payload_type(s
, PAYLOAD_AUDIO_CONTINUOUS
);
113 ret
= rtp_session_set_remote_addr(s
, TARGET_ADDR(ot
), ot
->port
);
115 rtp_session_destroy(ot
->session
);
123 static void ortp_shutdown_targets(void)
125 unsigned char buf
[ORTP_AUDIO_HEADER_LEN
];
126 struct ortp_target
*ot
, *tmp
;
128 WRITE_PACKET_TYPE(buf
, ORTP_EOF
);
129 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
130 if (!ot
->session
|| !ot
->streaming
)
132 PARA_INFO_LOG("sending eof to ortp target %s:%d, ts = %d\n",
133 TARGET_ADDR(ot
), ot
->port
, ot
->last_ts
);
134 rtp_session_send_with_ts(ot
->session
, buf
,
135 ORTP_AUDIO_HEADER_LEN
, ot
->last_ts
);
138 rtp_session_reset(ot
->session
);
142 static int need_extra_header(long unsigned current_chunk
)
144 static struct timeval last_header
;
145 struct timeval now
, diff
;
149 gettimeofday(&now
, NULL
);
150 tv_diff(&now
, &last_header
, &diff
);
151 if (tv2ms(&diff
) < conf
.ortp_header_interval_arg
)
157 static void ortp_send(long unsigned current_chunk
, long unsigned chunks_sent
,
158 const char *buf
, size_t len
)
160 struct ortp_target
*ot
, *tmp
;
162 size_t header_len
= 0;
163 int packet_type
= ORTP_DATA
;
164 char *sendbuf
, *header_buf
= NULL
;
165 struct timeval
*chunk_tv
;
167 if (self
->status
!= SENDER_ON
)
169 chunk_tv
= vss_chunk_time();
172 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
174 ortp_init_session(ot
);
179 ot
->chunk_ts
= rtp_session_time_to_ts(ot
->session
,
180 (int)tv2ms(chunk_tv
));
181 // PARA_DEBUG_LOG("len: %d, ts: %lu, ts: %d\n",
182 // len, ot->chunk_ts * chunks_sent, ot->chunk_ts);
185 if (list_empty(&targets
))
187 header_buf
= vss_get_header(&header_len
);
188 if (!need_extra_header(current_chunk
))
190 sendbuf_len
= ORTP_AUDIO_HEADER_LEN
+ header_len
+ len
;
191 sendbuf
= para_malloc(sendbuf_len
);
193 packet_type
= ORTP_BOF
;
195 packet_type
= ORTP_HEADER
;
196 WRITE_PACKET_TYPE(sendbuf
, packet_type
);
197 WRITE_CHUNK_TIME(sendbuf
, chunk_tv
->tv_usec
);
198 WRITE_STREAM_TYPE(sendbuf
, header_buf
? 1 : 0);
199 WRITE_HEADER_LEN(sendbuf
, header_len
);
201 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
, header_buf
,
203 memcpy(sendbuf
+ ORTP_AUDIO_HEADER_LEN
+ header_len
, buf
, len
);
204 ortp_send_buf(sendbuf
, sendbuf_len
, chunks_sent
);
208 static int ortp_com_on(__a_unused
struct sender_command_data
*scd
)
211 self
->status
= SENDER_ON
;
215 static int ortp_com_off(__a_unused
struct sender_command_data
*scd
)
217 ortp_shutdown_targets();
218 self
->status
= SENDER_OFF
;
222 static int ortp_com_delete(struct sender_command_data
*scd
)
224 char *a
= para_strdup(inet_ntoa(scd
->addr
));
225 struct ortp_target
*ot
, *tmp
;
226 list_for_each_entry_safe(ot
, tmp
, &targets
, node
) {
227 if (scd
->port
!= ot
->port
)
229 if (strcmp(TARGET_ADDR(ot
), a
))
231 ortp_delete_target(ot
, "com_delete");
236 static void ortp_add_target(int port
, struct in_addr
*addr
)
238 struct ortp_target
*ot
= para_calloc(sizeof(struct ortp_target
));
241 PARA_INFO_LOG("adding to target list (%s:%d)\n",
242 TARGET_ADDR(ot
), ot
->port
);
243 para_list_add(&ot
->node
, &targets
);
246 static int ortp_com_add(struct sender_command_data
*scd
)
248 int port
= (scd
->port
> 0)? scd
->port
: conf
.ortp_default_port_arg
;
249 ortp_add_target(port
, &scd
->addr
);
253 static char *ortp_info(void)
255 struct ortp_target
*ot
;
256 char *ret
, *tgts
= NULL
;
258 list_for_each_entry(ot
, &targets
, node
) {
259 char *tmp
= make_message("%s%s:%d ", tgts
? tgts
: "",
260 TARGET_ADDR(ot
), ot
->port
);
266 "ortp default port: udp %d\n"
267 "ortp targets: %s\n",
268 (self
->status
== SENDER_ON
)? "on" : "off",
269 conf
.ortp_default_port_arg
,
270 tgts
? tgts
: "(none)"
276 static void ortp_init_target_list(void)
280 INIT_LIST_HEAD(&targets
);
281 for (i
= 0; i
< conf
.ortp_target_given
; i
++) {
282 char *arg
= para_strdup(conf
.ortp_target_arg
[i
]);
283 char *p
= strchr(arg
, ':');
290 if (!inet_aton(arg
, &addr
))
293 if (port
< 0 || port
> 65535)
294 port
= conf
.ortp_default_port_arg
;
295 ortp_add_target(port
, &addr
);
298 PARA_CRIT_LOG("syntax error for ortp_target option "
299 "#%d, ignoring\n", i
);
306 static void ortp_pre_select(__a_unused
int *max_fileno
, __a_unused fd_set
*rfds
,
307 __a_unused fd_set
*wfds
)
312 static char *ortp_help(void)
316 "usage: {add|delete} IP port\n"
317 "example: add 224.0.1.38 1500 (LAN-streaming)\n"
322 * the init function of para_server's ortp sender
324 * \param s pointer to the http sender struct
326 * It initializes all function pointers of \a s and the list of ortp targets.
328 void ortp_send_init(struct sender
*s
)
331 INIT_LIST_HEAD(&targets
);
335 s
->pre_select
= ortp_pre_select
;
336 s
->post_select
= NULL
;
337 s
->shutdown_clients
= ortp_shutdown_targets
;
338 s
->client_cmds
[SENDER_ON
] = ortp_com_on
;
339 s
->client_cmds
[SENDER_OFF
] = ortp_com_off
;
340 s
->client_cmds
[SENDER_DENY
] = NULL
;
341 s
->client_cmds
[SENDER_ALLOW
] = NULL
;
342 s
->client_cmds
[SENDER_ADD
] = ortp_com_add
;
343 s
->client_cmds
[SENDER_DELETE
] = ortp_com_delete
;
345 s
->status
= SENDER_OFF
;
346 ortp_init_target_list();
347 if (!conf
.ortp_no_autostart_given
)
348 s
->status
= SENDER_ON
;
349 PARA_DEBUG_LOG("%s", "ortp sender init complete\n");