1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
|
/*
* FILE: cmd_parser.c
* PROGRAM: RAT - controller
* AUTHOR: Colin Perkins / Orion Hodson
*
* Copyright (c) 1999-2001 University College London
* All rights reserved.
*/
#ifndef HIDE_SOURCE_STRINGS
static const char cvsid[] = "$Id";
#endif /* HIDE_SOURCE_STRINGS */
#include "config_unix.h"
#include "config_win32.h"
#include "debug.h"
#include "mbus.h"
#include "mbus_parser.h"
#include "codec_compat.h"
#include "cmd_parser.h"
#include "version.h"
void
usage(char *szOffending)
{
#ifdef WIN32
char win_usage[] = "\
RAT is a multicast (or unicast) audio tool. It is best to start it\n\
using a multicast directory tool, like sdr or multikit. If desired RAT\n\
can be launched from the command line using:\n\n\
rat <address>/<port>\n\n\
where <address> is machine name, or a multicast IP address, and <port> is\n\
the connection identifier (an even number between 1024-65536).\n\n\
For more details see:\n\n\
http://www-mice.cs.ucl.ac.uk/multimedia/software/rat/faq.html\
";
if (szOffending == NULL) {
szOffending = win_usage;
}
MessageBox(NULL, szOffending, "RAT v" RAT_VERSION " Usage", MB_ICONINFORMATION | MB_OK);
#else
printf("Usage: rat [options] -t <ttl> <addr>/<port>\n");
if (szOffending) {
printf(szOffending);
}
#endif
}
static int
cmd_logstats(struct mbus *m, char *addr, int argc, char *argv[])
{
assert(argc == 0);
mbus_qmsgf(m, addr, TRUE, "tool.rat.logstats", "1");
UNUSED(argc);
UNUSED(argv);
return TRUE;
}
static int
cmd_layers(struct mbus *m, char *addr, int argc, char *argv[])
{
int layers;
assert(argc == 1);
layers = atoi(argv[0]);
if (layers > 1) {
mbus_qmsgf(m, addr, TRUE, "tool.rat.layers", "%d", argv[0]);
return TRUE;
}
UNUSED(argc);
return FALSE;
}
static int
cmd_allowloop(struct mbus *m, char *addr, int argc, char *argv[])
{
assert(argc == 0);
mbus_qmsgf(m, addr, TRUE, "tool.rat.filter.loopback", "0");
UNUSED(argc);
UNUSED(argv);
return TRUE;
}
static int
cmd_session_name(struct mbus *m, char *addr, int argc, char *argv[])
{
char *enc_name;
assert(argc == 1);
enc_name = mbus_encode_str(argv[0]);
mbus_qmsgf(m, addr, TRUE, "session.title", enc_name);
xfree(enc_name);
UNUSED(argc);
return TRUE;
}
static int
cmd_payload_map(struct mbus *m, char *addr, int argc, char *argv[])
{
const char *compat;
char *codec;
int codec_pt;
assert(argc == 1);
/* Dynamic payload type mapping. Format: "-pt pt/codec" */
/* Codec is of the form "pcmu-8k-mono" */
codec_pt = atoi((char*)strtok(argv[0], "/"));
compat = codec_get_compatible_name(strtok(NULL, "/"));
if (compat == NULL) {
usage("Usage: -pt <pt>/<codec>");
return FALSE;
}
codec = mbus_encode_str(compat);
mbus_qmsgf(m, addr, TRUE, "tool.rat.payload.set", "%s %d", codec, codec_pt);
xfree(codec);
UNUSED(argc);
return TRUE;
}
static int
cmd_crypt(struct mbus *m, char *addr, int argc, char *argv[])
{
char *key;
assert(argc == 1);
key = mbus_encode_str(argv[0]);
mbus_qmsgf(m, addr, TRUE, "security.encryption.key", key);
xfree(key);
UNUSED(argc);
return TRUE;
}
static int
cmd_agc(struct mbus *m, char *addr, int argc, char *argv[])
{
assert(argc == 1);
if (strcmp(argv[0], "on") == 0) {
mbus_qmsgf(m, addr, TRUE, "tool.rat.agc", "1");
return TRUE;
} else if (strcmp(argv[0], "off") == 0) {
mbus_qmsgf(m, addr, TRUE, "tool.rat.agc", "0");
return TRUE;
}
UNUSED(argc);
usage("Usage: -agc on|off\n");
return FALSE;
}
static int
cmd_silence(struct mbus *m, char *addr, int argc, char *argv[])
{
assert(argc == 1);
if (strcmp(argv[0], "on") == 0) {
mbus_qmsgf(m, addr, TRUE, "tool.rat.silence", "1");
return TRUE;
} else if (strcmp(argv[0], "off") == 0) {
mbus_qmsgf(m, addr, TRUE, "tool.rat.silence", "0");
return TRUE;
}
UNUSED(argc);
usage("Usage: -silence on|off\n");
return FALSE;
}
static int
cmd_repair(struct mbus *m, char *addr, int argc, char *argv[])
{
char *repair;
assert(argc == 1);
repair = mbus_encode_str(argv[0]);
mbus_qmsgf(m, addr, TRUE, "audio.channel.repair", repair);
xfree(repair);
UNUSED(argc);
return TRUE;
}
static int
cmd_primary(struct mbus *m, char *addr, int argc, char *argv[])
{
/* Set primary codec: "-f codec". You cannot set the */
/* redundant codec with this option, use "-r" instead. */
char *firstname, *realname, *name, *freq, *chan;
assert(argc == 1);
/* Break at trailing / in case user attempting old syntax */
firstname = (char*)strtok(argv[0], "/");
/* The codec should be of the form "pcmu-8k-mono". */
realname = xstrdup(codec_get_compatible_name(firstname));
name = (char*)strtok(realname, "-");
freq = (char*)strtok(NULL, "-");
chan = (char*)strtok(NULL, "");
if (freq != NULL && chan != NULL) {
debug_msg("codec: %s %s %s\n", name, chan, freq);
name = mbus_encode_str(name);
freq = mbus_encode_str(freq);
chan = mbus_encode_str(chan);
mbus_qmsgf(m, addr, TRUE, "tool.rat.codec", "%s %s %s", name, chan, freq);
xfree(name);
xfree(freq);
xfree(chan);
}
xfree(realname);
return TRUE;
}
static int
cmd_redundancy(struct mbus *m, char *addr, int argc, char *argv[])
{
const char *compat;
char *redundancy, *codec;
int offset;
assert(argc == 1);
/* Set channel coding to redundancy: "-r codec/offset" */
compat = codec_get_compatible_name((const char*)strtok(argv[0], "/"));
offset = atoi((char*)strtok(NULL, ""));
if (offset > 0) {
redundancy = mbus_encode_str("redundancy");
codec = mbus_encode_str(compat);
mbus_qmsgf(m, addr, TRUE, "audio.channel.coding", "%s %s %d", redundancy, codec, offset);
xfree(redundancy);
xfree(codec);
return TRUE;
}
UNUSED(argc);
usage("Usage: -r <codec>/<offset>");
return FALSE;
}
static void
cmd_sdes(struct mbus *m, char *addr, const char *msg_name, const char *value)
{
char *sdes_value, *local_user;
local_user = mbus_encode_str("localuser");
sdes_value = mbus_encode_str(value);
mbus_qmsgf(m, addr, TRUE, msg_name, "%s %s", local_user, sdes_value);
xfree(local_user);
xfree(sdes_value);
}
static int
cmd_sdes_name(struct mbus *m, char *addr, int argc, char *argv[]) {
assert(argc == 1);
UNUSED(argc);
cmd_sdes(m, addr, "rtp.source.name", argv[0]);
return TRUE;
}
static int
cmd_sdes_email(struct mbus *m, char *addr, int argc, char *argv[]) {
assert(argc == 1);
UNUSED(argc);
cmd_sdes(m, addr, "rtp.source.email", argv[0]);
return TRUE;
}
static int
cmd_sdes_phone(struct mbus *m, char *addr, int argc, char *argv[]) {
assert(argc == 1);
UNUSED(argc);
cmd_sdes(m, addr, "rtp.source.phone", argv[0]);
return TRUE;
}
static int
cmd_sdes_loc(struct mbus *m, char *addr, int argc, char *argv[]) {
assert(argc == 1);
UNUSED(argc);
cmd_sdes(m, addr, "rtp.source.loc", argv[0]);
return TRUE;
}
static args_handler late_args[] = {
{ "-logstats", cmd_logstats, 0 },
{ "-l", cmd_layers, 1 },
{ "-allowloopback", cmd_allowloop, 0 },
{ "-allow_loopback", cmd_allowloop, 0 },
{ "-C", cmd_session_name, 1 },
{ "-E", cmd_sdes_email, 1 },
{ "-pt", cmd_payload_map, 1 },
{ "-crypt", cmd_crypt, 1 },
{ "-K", cmd_crypt, 1 },
{ "-L", cmd_sdes_loc, 1 },
{ "-N", cmd_sdes_name, 1 },
{ "-P", cmd_sdes_phone, 1 },
{ "-agc", cmd_agc, 1 },
{ "-silence", cmd_silence, 1 },
{ "-repair", cmd_repair, 1 },
{ "-f", cmd_primary, 1 },
{ "-r", cmd_redundancy, 1 },
{ "-t", NULL, 1 }, /* handled in parse early args */
{ "-noui", NULL, 0 }, /* handled in parse early args */
{ "-T", NULL, 0 }, /* transcoder: special handling */
};
static uint32_t late_args_cnt = sizeof(late_args)/sizeof(late_args[0]);
const args_handler *
cmd_args_handler(char *cmdname)
{
uint32_t j;
for (j = 0; j < late_args_cnt; j++) {
if (strcmp(cmdname, late_args[j].cmdname) == 0) {
return late_args + j;
}
}
return NULL;
}
|