This commit introduces the first phase of an effort to manage documentation of the interfaces in Asterisk in an XML format. Currently, a new format is available for applications and dialplan functions. A good number of conversions to the new format are also included. For more information, see the following message to asterisk-dev: http://lists.digium.com/pipermail/asterisk-dev/2008-October/034968.html git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@153365 65c4cc65-6c06-0410-ace0-fbb531ad65f3
215 lines
5 KiB
C
215 lines
5 KiB
C
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (C) 1999 - 2005, Digium, Inc.
|
|
*
|
|
* Mark Spencer <markster@digium.com>
|
|
*
|
|
* See http://www.asterisk.org for more information about
|
|
* the Asterisk project. Please do not directly contact
|
|
* any of the maintainers of this project for assistance;
|
|
* the project provides a web site, mailing lists and IRC
|
|
* channels for your use.
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License Version 2. See the LICENSE file
|
|
* at the top of the source tree.
|
|
*/
|
|
|
|
/*! \file
|
|
*
|
|
* \brief Stream to an icecast server via ICES (see contrib/asterisk-ices.xml)
|
|
*
|
|
* \author Mark Spencer <markster@digium.com>
|
|
*
|
|
* \extref ICES - http://www.icecast.org/ices.php
|
|
*
|
|
* \ingroup applications
|
|
*/
|
|
|
|
#include "asterisk.h"
|
|
|
|
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|
|
|
#include <signal.h>
|
|
#include <fcntl.h>
|
|
#include <sys/time.h>
|
|
|
|
#include "asterisk/paths.h" /* use ast_config_AST_CONFIG_DIR */
|
|
#include "asterisk/lock.h"
|
|
#include "asterisk/file.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/frame.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/translate.h"
|
|
#include "asterisk/app.h"
|
|
|
|
/*** DOCUMENTATION
|
|
<application name="ICES" language="en_US">
|
|
<synopsis>
|
|
Encode and stream using 'ices'.
|
|
</synopsis>
|
|
<syntax>
|
|
<parameter name="config" required="true">
|
|
<para>ICES configuration file.</para>
|
|
</parameter>
|
|
</syntax>
|
|
<description>
|
|
<para>Streams to an icecast server using ices (available separately).
|
|
A configuration file must be supplied for ices (see contrib/asterisk-ices.xml).</para>
|
|
<note><para>ICES version 2 cient and server required.</para></note>
|
|
</description>
|
|
</application>
|
|
|
|
***/
|
|
|
|
#define path_BIN "/usr/bin/"
|
|
#define path_LOCAL "/usr/local/bin/"
|
|
|
|
static char *app = "ICES";
|
|
|
|
static int icesencode(char *filename, int fd)
|
|
{
|
|
int res;
|
|
|
|
res = ast_safe_fork(0);
|
|
if (res < 0)
|
|
ast_log(LOG_WARNING, "Fork failed\n");
|
|
if (res) {
|
|
return res;
|
|
}
|
|
|
|
if (ast_opt_high_priority)
|
|
ast_set_priority(0);
|
|
dup2(fd, STDIN_FILENO);
|
|
ast_close_fds_above_n(STDERR_FILENO);
|
|
|
|
/* Most commonly installed in /usr/local/bin
|
|
* But many places has it in /usr/bin
|
|
* As a last-ditch effort, try to use PATH
|
|
*/
|
|
execl(path_LOCAL "ices2", "ices", filename, SENTINEL);
|
|
execl(path_BIN "ices2", "ices", filename, SENTINEL);
|
|
execlp("ices2", "ices", filename, SENTINEL);
|
|
|
|
ast_debug(1, "Couldn't find ices version 2, attempting to use ices version 1.");
|
|
|
|
execl(path_LOCAL "ices", "ices", filename, SENTINEL);
|
|
execl(path_BIN "ices", "ices", filename, SENTINEL);
|
|
execlp("ices", "ices", filename, SENTINEL);
|
|
|
|
ast_log(LOG_WARNING, "Execute of ices failed, could not find command.\n");
|
|
close(fd);
|
|
_exit(0);
|
|
}
|
|
|
|
static int ices_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = 0;
|
|
int fds[2];
|
|
int ms = -1;
|
|
int pid = -1;
|
|
int flags;
|
|
int oreadformat;
|
|
struct timeval last;
|
|
struct ast_frame *f;
|
|
char filename[256]="";
|
|
char *c;
|
|
|
|
if (ast_strlen_zero(data)) {
|
|
ast_log(LOG_WARNING, "ICES requires an argument (configfile.xml)\n");
|
|
return -1;
|
|
}
|
|
|
|
last = ast_tv(0, 0);
|
|
|
|
if (pipe(fds)) {
|
|
ast_log(LOG_WARNING, "Unable to create pipe\n");
|
|
return -1;
|
|
}
|
|
flags = fcntl(fds[1], F_GETFL);
|
|
fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
|
|
|
|
ast_stopstream(chan);
|
|
|
|
if (chan->_state != AST_STATE_UP)
|
|
res = ast_answer(chan);
|
|
|
|
if (res) {
|
|
close(fds[0]);
|
|
close(fds[1]);
|
|
ast_log(LOG_WARNING, "Answer failed!\n");
|
|
return -1;
|
|
}
|
|
|
|
oreadformat = chan->readformat;
|
|
res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
|
|
if (res < 0) {
|
|
close(fds[0]);
|
|
close(fds[1]);
|
|
ast_log(LOG_WARNING, "Unable to set write format to signed linear\n");
|
|
return -1;
|
|
}
|
|
if (((char *)data)[0] == '/')
|
|
ast_copy_string(filename, (char *) data, sizeof(filename));
|
|
else
|
|
snprintf(filename, sizeof(filename), "%s/%s", ast_config_AST_CONFIG_DIR, (char *)data);
|
|
/* Placeholder for options */
|
|
c = strchr(filename, '|');
|
|
if (c)
|
|
*c = '\0';
|
|
res = icesencode(filename, fds[0]);
|
|
if (res >= 0) {
|
|
pid = res;
|
|
for (;;) {
|
|
/* Wait for audio, and stream */
|
|
ms = ast_waitfor(chan, -1);
|
|
if (ms < 0) {
|
|
ast_debug(1, "Hangup detected\n");
|
|
res = -1;
|
|
break;
|
|
}
|
|
f = ast_read(chan);
|
|
if (!f) {
|
|
ast_debug(1, "Null frame == hangup() detected\n");
|
|
res = -1;
|
|
break;
|
|
}
|
|
if (f->frametype == AST_FRAME_VOICE) {
|
|
res = write(fds[1], f->data.ptr, f->datalen);
|
|
if (res < 0) {
|
|
if (errno != EAGAIN) {
|
|
ast_log(LOG_WARNING, "Write failed to pipe: %s\n", strerror(errno));
|
|
res = -1;
|
|
ast_frfree(f);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
ast_frfree(f);
|
|
}
|
|
}
|
|
close(fds[0]);
|
|
close(fds[1]);
|
|
|
|
if (pid > -1)
|
|
kill(pid, SIGKILL);
|
|
if (!res && oreadformat)
|
|
ast_set_read_format(chan, oreadformat);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
return ast_unregister_application(app);
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
return ast_register_application_xml(app, ices_exec);
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Encode and Stream via icecast and ices");
|