mp3_afh.c: set bitrate, frequency and channels of struct audio_file_info
[paraslash.git] / recv.c
1 /*
2 * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
17 */
18
19 /** \file recv.c the stand-alone audio stream receiver */
20
21 #include "para.h"
22
23 #include "list.h"
24 #include "sched.h"
25 #include "recv.h"
26 #include "recv.cmdline.h"
27 #include "fd.h"
28 #include "error.h"
29 #include "stdout.h"
30
31 /** the gengetopt args info struct */
32 struct recv_args_info conf;
33
34 /** always log to stderr */
35 INIT_STDERR_LOGGING(conf.loglevel_arg);
36
37 /** init array of error codes used by para_recv */
38 INIT_RECV_ERRLISTS;
39
40 static void *parse_config(int argc, char *argv[], int *receiver_num)
41 {
42 int i;
43
44 if (recv_cmdline_parser(argc, argv, &conf))
45 return NULL;
46 HANDLE_VERSION_FLAG("recv", conf);
47 if (conf.list_receivers_given) {
48 printf("available receivers: ");
49 for (i = 0; receivers[i].name; i++)
50 printf("%s%s", i? " " : "", receivers[i].name);
51 printf("\nTry\n\tpara_recv -r '<receivername> -h'\n"
52 "for help on <receivername>.\n");
53 exit(EXIT_SUCCESS);
54 }
55 return check_receiver_arg(conf.receiver_arg, receiver_num);
56 }
57
58 static void rn_event_handler(struct task *t)
59 {
60 struct receiver_node *rn = t->private_data;
61 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
62 rn->eof = 1;
63 unregister_task(t);
64 }
65
66 /**
67 * the main function of para_recv
68 *
69 * \param argc number of arguments
70 * \param argv vector of arguments
71 *
72 * para_recv uses the specified receiver to receive an audio stream sent by
73 * para_server. The received data is written to stdout.
74 *
75 * \return \a EXIT_SUCCESS on success, \a EXIT_FAILURE on errors.
76 */
77 int main(int argc, char *argv[])
78 {
79 int ret, r_opened = 0, receiver_num;
80 struct receiver *r = NULL;
81 struct receiver_node rn;
82 struct stdout_task sot;
83 struct sched s;
84
85 s.default_timeout.tv_sec = 1;
86 s.default_timeout.tv_usec = 0;
87
88 memset(&rn, 0, sizeof(struct receiver_node));
89 for (ret = 0; receivers[ret].name; ret++)
90 receivers[ret].init(&receivers[ret]);
91 ret = -E_RECV_SYNTAX;
92 rn.conf = parse_config(argc, argv, &receiver_num);
93 if (!rn.conf) {
94 PARA_EMERG_LOG("%s", "parse failed\n");
95 goto out;
96 }
97 r = &receivers[receiver_num];
98 rn.receiver = r;
99 ret = r->open(&rn);
100 if (ret < 0)
101 goto out;
102 r_opened = 1;
103
104 stdout_set_defaults(&sot);
105 sot.buf = rn.buf;
106 sot.loaded = &rn.loaded;
107 sot.input_eof = &rn.eof;
108 register_task(&sot.task);
109
110 rn.task.private_data = &rn;
111 rn.task.pre_select = r->pre_select;
112 rn.task.post_select = r->post_select;
113 rn.task.event_handler = rn_event_handler;
114 sprintf(rn.task.status, "receiver node");
115 register_task(&rn.task);
116
117 ret = sched(&s);
118 out:
119 if (r_opened)
120 r->close(&rn);
121 if (r)
122 r->shutdown();
123 if (ret < 0)
124 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
125 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
126 }