FreeCalypso > hg > sipout-test-utils
annotate test-voice/rtp_rx.c @ 7:6d832abad660
test-fsk: gather and print full line of modem Rx characters
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 05 Mar 2024 10:57:45 -0800 |
parents | 35c0d9f03c0a |
children | 4f81b959a5f5 |
rev | line source |
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0
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1 /* |
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2 * In this module we implement our RTP handling: obtaining a PSTN-side |
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3 * RTP endpoint from themwi-rtp-mgr, then handling read select on RTP |
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4 * and RTCP UDP sockets. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include <sys/socket.h> |
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9 #include <netinet/in.h> |
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10 #include <stdio.h> |
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11 #include <stdint.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 "../include/tmgw_const.h" |
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16 #include "../include/rtp_defs.h" |
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17 #include "../librtpalloc/rtp_alloc_simple.h" |
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18 |
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19 struct sockaddr_in rtp_local_addr; |
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20 int rtp_udp_fd, rtcp_udp_fd; |
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21 |
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22 static int rtp_start_flag, rtp_bad_flag, rtp_ssrc_chg_flag; |
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23 static int rtp_seq_brk_flag, rtp_seq_zero_flag, rtp_seq_neg_flag; |
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24 static int rtp_ts_brk_flag; |
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25 static uint32_t rtp_ssrc; |
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26 static uint32_t rtp_last_ts; |
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27 static uint16_t rtp_last_seq; |
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28 static int got_some_rtcp; |
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29 |
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30 static const uint8_t hdr_pattern[20] = {0, 1, 0, 1, 0, 1, 1, 0, 1, 0, |
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31 0, 1, 1, 0, 1, 0, 1, 0, 0, 1}; |
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32 |
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33 static uint8_t is_hunt_buf[320]; |
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34 static int is_state; |
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35 static unsigned is_offset, is_bit_count, is_hunt_fill; |
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36 static uint32_t is_rx_word; |
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37 |
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38 static void |
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39 reset_is_hunt() |
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40 { |
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41 is_state = 0; |
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42 is_hunt_fill = 0; |
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43 } |
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44 |
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45 static void |
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46 is_rx_hunt(input_pos) |
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47 unsigned input_pos; |
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48 { |
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49 unsigned offset, n; |
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50 |
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51 for (offset = 0; offset < 16; offset++) { |
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52 for (n = 0; n < 20; n++) |
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53 if ((is_hunt_buf[offset + n*16] & 1) != hdr_pattern[n]) |
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54 break; |
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55 if (n == 20) |
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56 break; |
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57 } |
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58 if (n != 20) |
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59 return; |
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60 printf("Found IS_Header, last bit offset %u\n", |
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61 input_pos * 16 + offset); |
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62 is_offset = offset; |
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63 is_state = 1; |
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64 is_bit_count = 0; |
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65 is_rx_word = 0; |
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66 is_hunt_fill = 0; |
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67 } |
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68 |
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69 static void |
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70 is_process_cmd() |
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71 { |
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72 int cont; |
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73 |
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74 printf("IS_Command: 0x%03X", is_rx_word); |
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75 switch (is_rx_word) { |
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76 case 0x05D: |
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77 printf(" (REQ)\n"); |
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78 cont = 1; |
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79 break; |
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80 case 0x0BA: |
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81 printf(" (ACK)\n"); |
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82 cont = 1; |
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83 break; |
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84 case 0x0E7: |
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85 printf(" (IPE)\n"); |
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86 cont = 1; |
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87 break; |
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88 case 0x129: |
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89 printf(" (FILL)\n"); |
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90 cont = 0; |
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91 break; |
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92 case 0x174: |
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93 printf(" (DUP)\n"); |
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94 cont = 0; |
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95 break; |
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96 case 0x193: |
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97 printf(" (SYL)\n"); |
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98 cont = 0; |
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99 break; |
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100 default: |
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101 printf(" (bad)\n"); |
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102 cont = 0; |
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103 } |
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104 if (cont) { |
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105 is_state = 2; |
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106 is_bit_count = 0; |
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107 is_rx_word = 0; |
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108 } else |
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109 is_state = 0; |
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110 } |
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111 |
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112 static void |
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113 is_process_ext() |
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114 { |
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115 printf("IS_Extension: 0x%05X", is_rx_word); |
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116 if (is_rx_word & 0x80200) { |
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117 printf(" (bad sync)\n"); |
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118 is_state = 0; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 switch (is_rx_word & 3) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
122 case 0: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
123 printf(" (final)\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
124 is_state = 0; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
125 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
126 case 3: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
127 printf(" (continue)\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
128 is_state = 2; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
129 is_bit_count = 0; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
130 is_rx_word = 0; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
131 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
132 default: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
133 printf(" (bad EX)\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
134 is_state = 0; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
135 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
136 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
137 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
138 static void |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
139 is_rx_process(input, input_pos) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
140 uint8_t *input; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
141 unsigned input_pos; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
142 { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
143 unsigned new_bit; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
144 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
145 memmove(is_hunt_buf, is_hunt_buf + 16, 304); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
146 memcpy(is_hunt_buf + 304, input, 16); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
147 if (!is_state) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
148 if (is_hunt_fill < 20) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
149 is_hunt_fill++; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
150 if (is_hunt_fill == 20) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
151 is_rx_hunt(input_pos); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
152 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
153 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
154 new_bit = input[is_offset] & 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
155 is_rx_word <<= 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
156 is_rx_word |= new_bit; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
157 is_bit_count++; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
158 if (is_state == 1 && is_bit_count == 10) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
159 is_process_cmd(); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
160 else if (is_state == 2 && is_bit_count == 20) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
161 is_process_ext(); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
162 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
163 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
164 void |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
165 obtain_rtp_endp() |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
166 { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
167 int rc; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
168 struct rtp_alloc_simple res; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
169 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
170 rc = rtp_alloc_simple(TMGW_EP_TYPE_PSTN_ONLY, &res); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
171 if (rc < 0) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
172 exit(1); /* error msg already printed */ |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
173 bcopy(&res.pstn_addr, &rtp_local_addr, sizeof(struct sockaddr_in)); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
174 rtp_udp_fd = res.pstn_rtp_fd; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
175 rtcp_udp_fd = res.pstn_rtcp_fd; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
176 reset_is_hunt(); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
177 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
178 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
179 void |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
180 rtp_rx_select() |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
181 { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
182 struct rtp_packet pkt; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
183 struct sockaddr_in sin_from; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
184 socklen_t addrlen; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
185 int16_t seq_delta; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
186 int32_t ts_delta; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
187 int rc; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
188 unsigned is_chunk; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
189 |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
190 addrlen = sizeof(struct sockaddr_in); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
191 rc = recvfrom(rtp_udp_fd, &pkt, sizeof pkt, 0, |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
192 (struct sockaddr *) &sin_from, &addrlen); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
193 if (rc < 0) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
194 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
195 if (rc != RTP_PACKET_SIZE_PSTN) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
196 bad_rtp_pkt: if (!rtp_bad_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
197 printf("Got a bad RTP packet\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
198 rtp_bad_flag = 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
199 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
200 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
201 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
202 if (pkt.v_p_x_cc != 0x80) |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
203 goto bad_rtp_pkt; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
204 switch (pkt.m_pt & 0x7F) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
205 case PSTN_CODEC_PCMU: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
206 case PSTN_CODEC_PCMA: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
207 break; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
208 default: |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
209 goto bad_rtp_pkt; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
210 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
211 if (rtp_start_flag && pkt.ssrc != rtp_ssrc) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
212 if (!rtp_ssrc_chg_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
213 printf("Rx RTP stream changed SSRC\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
214 rtp_ssrc_chg_flag = 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
215 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
216 reset_is_hunt(); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
217 } else if (rtp_start_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
218 seq_delta = ntohs(pkt.seq) - rtp_last_seq; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
219 ts_delta = ntohl(pkt.tstamp) - rtp_last_ts; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
220 if (seq_delta == 0) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
221 if (!rtp_seq_zero_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
222 printf("Rx RTP seq zero increment\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
223 rtp_seq_zero_flag = 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
224 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
225 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
226 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
227 if (seq_delta < 0) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
228 if (!rtp_seq_neg_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
229 printf("Rx RTP seq negative increment\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
230 rtp_seq_neg_flag = 1; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
231 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
232 return; |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
233 } |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
234 if (seq_delta != 1) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
235 if (!rtp_seq_brk_flag) { |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
236 printf("Rx RTP stream seq break\n"); |
35c0d9f03c0a
beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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237 rtp_seq_brk_flag = 1; |
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238 } |
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239 reset_is_hunt(); |
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240 } else if (ts_delta != 160) { |
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241 if (!rtp_ts_brk_flag) { |
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242 printf("Rx RTP stream tstamp break\n"); |
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243 rtp_ts_brk_flag = 1; |
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244 } |
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245 reset_is_hunt(); |
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246 } |
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247 } |
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248 rtp_ssrc = pkt.ssrc; |
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249 rtp_last_ts = ntohl(pkt.tstamp); |
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250 rtp_last_seq = ntohs(pkt.seq); |
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251 if (!rtp_start_flag) { |
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252 printf("Rx RTP stream begins with seq=%u ts=%u\n", |
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253 rtp_last_seq, rtp_last_ts); |
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254 rtp_start_flag = 1; |
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255 } |
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256 for (is_chunk = 0; is_chunk < 10; is_chunk++) |
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257 is_rx_process(pkt.payload + is_chunk * 16, is_chunk); |
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258 } |
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259 |
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260 void |
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261 rtcp_rx_select() |
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262 { |
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263 u_char buf[512]; |
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264 |
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265 recv(rtcp_udp_fd, buf, sizeof buf, 0); |
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266 if (!got_some_rtcp) { |
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267 printf("Got some RTCP\n"); |
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268 got_some_rtcp = 1; |
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269 } |
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270 } |