ee21eee7e0
Channel snapshots have string representations of the channel's native formats. Prior to this change, the format strings were re-created on ever channel snapshot creation. Since channel native formats rarely change, this was very wasteful. Now, string representations of formats may optionally be stored on the ast_format_cap for cases where string representations may be requested frequently. When formats are altered, the string cache is marked as invalid. When strings are requested, the cache validity is checked. If the cache is valid, then the cached strings are copied. If the cache is invalid, then the string cache is rebuilt and copied, and the cache is marked as being valid again. Review: https://reviewboard.asterisk.org/r/2879 ........ Merged revisions 400356 from http://svn.asterisk.org/svn/asterisk/branches/12 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@400363 65c4cc65-6c06-0410-ace0-fbb531ad65f3
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
|
|
* Asterisk -- An open source telephony toolkit.
|
|
*
|
|
* Copyright (C) 2007, Digium, Inc.
|
|
*
|
|
* Joshua Colp <jcolp@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 Simple two channel bridging module
|
|
*
|
|
* \author Joshua Colp <jcolp@digium.com>
|
|
*
|
|
* \ingroup bridges
|
|
*/
|
|
|
|
/*** MODULEINFO
|
|
<support_level>core</support_level>
|
|
***/
|
|
|
|
#include "asterisk.h"
|
|
|
|
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/bridge.h"
|
|
#include "asterisk/bridge_technology.h"
|
|
#include "asterisk/frame.h"
|
|
|
|
static int simple_bridge_join(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel)
|
|
{
|
|
struct ast_channel *c0 = AST_LIST_FIRST(&bridge->channels)->chan;
|
|
struct ast_channel *c1 = AST_LIST_LAST(&bridge->channels)->chan;
|
|
|
|
/*
|
|
* If this is the first channel we can't make it compatible...
|
|
* unless we make it compatible with itself. O.o
|
|
*/
|
|
if (c0 == c1) {
|
|
return 0;
|
|
}
|
|
|
|
return ast_channel_make_compatible(c0, c1);
|
|
}
|
|
|
|
static int simple_bridge_write(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, struct ast_frame *frame)
|
|
{
|
|
return ast_bridge_queue_everyone_else(bridge, bridge_channel, frame);
|
|
}
|
|
|
|
static struct ast_bridge_technology simple_bridge = {
|
|
.name = "simple_bridge",
|
|
.capabilities = AST_BRIDGE_CAPABILITY_1TO1MIX,
|
|
.preference = AST_BRIDGE_PREFERENCE_BASE_1TO1MIX,
|
|
.join = simple_bridge_join,
|
|
.write = simple_bridge_write,
|
|
};
|
|
|
|
static int unload_module(void)
|
|
{
|
|
ast_format_cap_destroy(simple_bridge.format_capabilities);
|
|
return ast_bridge_technology_unregister(&simple_bridge);
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
if (!(simple_bridge.format_capabilities = ast_format_cap_alloc(0))) {
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
ast_format_cap_add_all_by_type(simple_bridge.format_capabilities, AST_FORMAT_TYPE_AUDIO);
|
|
ast_format_cap_add_all_by_type(simple_bridge.format_capabilities, AST_FORMAT_TYPE_VIDEO);
|
|
ast_format_cap_add_all_by_type(simple_bridge.format_capabilities, AST_FORMAT_TYPE_TEXT);
|
|
|
|
return ast_bridge_technology_register(&simple_bridge);
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Simple two channel bridging module");
|