FreeCalypso > hg > themwi-system-sw

annotate sip-manual-out/main.c @ 196:eac3e0b6ce02

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sip-manual-out: (hopefully) fix RTP output timing
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 17 Mar 2023 17:59:41 -0800
parents f8a33603288f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
71
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This is the main module for sip-manual-out test program.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/time.h>
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7 #include <sys/socket.h>
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8 #include <sys/errno.h>
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9 #include <netinet/in.h>
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10 #include <arpa/inet.h>
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11 #include <stdio.h>
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12 #include <stdlib.h>
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13 #include <string.h>
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14 #include <strings.h>
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15 #include <unistd.h>
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16 #include "../libsip/out_msg.h"
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17 #include "../libsip/sdp.h"
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18
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19 extern int sip_socket;
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20 extern struct in_addr sip_bind_ip, sip_dest_ip;
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21 extern unsigned sip_bind_port, sip_dest_port;
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22 extern char sip_dest_domain[];
187
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23 extern struct sockaddr_in rtp_local_addr;
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24 extern int rtp_udp_fd, rtcp_udp_fd;
192
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25 extern int rtp_out_enable;
71
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26
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27 struct sockaddr_in sip_dest_sin;
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28 char from_uri[128], to_uri[128], call_id[128];
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29 struct timeval cur_event_time;
120
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30 unsigned max_forwards = 70;
121
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31 int declare_100rel_supp;
122
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32 int pcma_codec_pref, pcma_codec_force;
71
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33
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34 send_invite_req()
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35 {
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36 struct sip_msg_out msg;
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37 struct sdp_gen sdp;
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38 int rc;
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39
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40 rc = start_request_out_msg(&msg, "INVITE", to_uri);
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41 if (rc < 0) {
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42 msg_size_err: fprintf(stderr, "composing INVITE req: msg size error\n");
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43 exit(1);
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44 }
123
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45 rc = add_req_boilerplate(&msg, "1 INVITE", 0);
71
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46 if (rc < 0)
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47 goto msg_size_err;
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48 rc = add_contact_header(&msg);
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49 if (rc < 0)
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50 goto msg_size_err;
121
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51 if (declare_100rel_supp) {
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52 rc = out_msg_add_header(&msg, "Supported", "100rel");
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53 if (rc < 0)
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54 goto msg_size_err;
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55 }
71
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56 rc = out_msg_add_header(&msg, "Content-Type", "application/sdp");
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57 if (rc < 0)
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58 goto msg_size_err;
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59 bzero(&sdp, sizeof sdp);
187
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60 sdp.conn_ip = rtp_local_addr.sin_addr;
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61 sdp.conn_port = ntohs(rtp_local_addr.sin_port);
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62 if (pcma_codec_force)
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63 sdp.codec_mask = SDP_CODEC_MASK_PCMA;
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64 else {
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65 sdp.codec_mask = SDP_CODEC_MASK_BOTH;
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66 if (pcma_codec_pref)
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67 sdp.codec_mask |= SDP_CODEC_MASK_PCMA_PREF;
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68 }
71
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69 sdp.session_id = sdp.conn_port << 16;
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70 sdp.owner_ip = sip_bind_ip;
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71 rc = out_msg_finish_sdp(&msg, &sdp);
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72 if (rc < 0)
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73 goto msg_size_err;
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74 sip_tx_packet(&msg, &sip_dest_sin);
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75 }
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76
119
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77 static void
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78 preliminary_proc(argc, argv)
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79 char **argv;
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80 {
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81 extern int optind;
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82 extern char *optarg;
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83 char *logfile;
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84 int opt, rc;
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85
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86 logfile = 0;
122
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87 while ((opt = getopt(argc, argv, "aAl:m:r")) != EOF) {
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88 switch (opt) {
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89 case 'a':
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90 pcma_codec_pref = 1;
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91 continue;
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92 case 'A':
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93 pcma_codec_force = 1;
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94 continue;
119
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95 case 'l':
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96 logfile = optarg;
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97 continue;
120
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98 case 'm':
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99 max_forwards = atoi(optarg);
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100 continue;
121
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101 case 'r':
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102 declare_100rel_supp = 1;
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103 continue;
119
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104 default:
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105 usage:
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106 fprintf(stderr,
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107 "usage: %s [options] dest-conf from-num to-num\n",
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108 argv[0]);
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109 exit(1);
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110 }
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111 }
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diff changeset
112 if (argc != optind + 3)
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113 goto usage;
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114 read_config_file(argv[optind]);
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parents: 74
diff changeset
115 open_sip_udp_socket();
187
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116 obtain_rtp_endp();
119
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117 sip_dest_sin.sin_family = AF_INET;
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118 sip_dest_sin.sin_addr = sip_dest_ip;
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119 sip_dest_sin.sin_port = htons(sip_dest_port);
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120 sprintf(from_uri, "<sip:%s@%s>;tag=out%u", argv[optind+1],
187
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121 inet_ntoa(sip_bind_ip), ntohs(rtp_local_addr.sin_port));
119
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122 sprintf(to_uri, "sip:%s@%s", argv[optind+2], sip_dest_domain);
056616f7e8ab sip-manual-out: convert command line to getopt style
Mychaela Falconia <falcon@freecalypso.org>
parents: 74
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123 if (logfile) {
056616f7e8ab sip-manual-out: convert command line to getopt style
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124 rc = open_sip_log_file(logfile);
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125 if (rc < 0)
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126 exit(1); /* error msg already printed */
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127 }
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128 }
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129
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130 main(argc, argv)
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131 char **argv;
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132 {
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133 fd_set fds;
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134 struct timeval next_rtp_out, timeout;
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135 int rc, max_fd, rtp_out_running;
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136
119
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137 preliminary_proc(argc, argv);
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138 gettimeofday(&cur_event_time, 0);
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139 sprintf(call_id, "%08u_%u@%s",
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140 (unsigned)(cur_event_time.tv_sec % 100000000),
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141 ntohs(rtp_local_addr.sin_port), inet_ntoa(sip_bind_ip));
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142 send_invite_req();
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143 /* main select loop */
187
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144 max_fd = sip_socket;
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145 if (rtp_udp_fd > max_fd)
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146 max_fd = rtp_udp_fd;
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147 if (rtcp_udp_fd > max_fd)
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148 max_fd = rtcp_udp_fd;
192
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149 rtp_out_running = 0;
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150 for (;;) {
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151 FD_ZERO(&fds);
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152 FD_SET(0, &fds);
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153 FD_SET(sip_socket, &fds);
187
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154 FD_SET(rtp_udp_fd, &fds);
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155 FD_SET(rtcp_udp_fd, &fds);
192
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156 if (rtp_out_enable) {
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157 if (!rtp_out_running) {
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158 printf("Starting RTP output\n");
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159 bcopy(&cur_event_time, &next_rtp_out,
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160 sizeof(struct timeval));
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161 rtp_out_running = 1;
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162 }
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163 if (timercmp(&cur_event_time, &next_rtp_out, <))
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164 timersub(&next_rtp_out, &cur_event_time,
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165 &timeout);
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166 else
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167 timerclear(&timeout);
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168 rc = select(max_fd+1, &fds, 0, 0, &timeout);
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169 } else {
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170 if (rtp_out_running) {
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171 printf("Stopping RTP output\n");
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172 rtp_out_running = 0;
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173 }
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174 rc = select(max_fd+1, &fds, 0, 0, 0);
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175 }
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176 if (rc < 0) {
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177 if (errno == EINTR)
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178 continue;
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179 perror("select");
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180 exit(1);
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181 }
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182 gettimeofday(&cur_event_time, 0);
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183 if (FD_ISSET(0, &fds))
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184 select_stdin();
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185 if (FD_ISSET(sip_socket, &fds))
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186 sip_socket_select();
187
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187 if (FD_ISSET(rtp_udp_fd, &fds))
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188 rtp_rx_select();
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189 if (FD_ISSET(rtcp_udp_fd, &fds))
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190 rtcp_rx_select();
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191 if (rtp_out_running && (rc == 0)) {
192
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192 generate_rtp_packet();
196
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193 next_rtp_out.tv_usec += 20000;
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194 if (next_rtp_out.tv_usec >= 1000000) {
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195 next_rtp_out.tv_sec++;
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196 next_rtp_out.tv_usec -= 1000000;
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197 }
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198 }
71
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199 }
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200 }