[Asterisk-Users] finding current codec?

[Mike Tkachuk]

/*
 * Asterisk -- A telephony toolkit for Linux.
 *
 * SET CODECUSED Channel variable to codec name.
 * 
 * Mike Tkachuk <mike at ukr.net>
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License
 *
 * Mark Spencer have original rights
 *
 * Should I mail something to digium? ;)
 */

#include <asterisk/lock.h>
#include <asterisk/file.h>
#include <asterisk/logger.h>
#include <asterisk/channel.h>
#include <asterisk/pbx.h>
#include <asterisk/module.h>
#include <asterisk/translate.h>
#include <asterisk/image.h>
#include <asterisk/callerid.h>
#include <asterisk/utils.h>
#include <string.h>
#include <stdlib.h>

static char *synopsis = "Sets CODECUSED variable Application";

static char *tdesc = "This application set's the codec used in current
channel to CODECUSED global vatriable";

static char *desc = "  GetCodecName()\n"
"Sets CODECUSED Application.  Always returns 0\n";

static char *app = "GetCodecName";

STANDARD_LOCAL_USER;

LOCAL_USER_DECL;

static int get_codec_name(struct ast_channel *chan, void *data)
{
        struct localuser *u;
	LOCAL_USER_ADD(u);
	
        if (chan){
          pbx_builtin_setvar_helper(chan, "CODECUSED",
ast_getformatname(chan ? chan->nativeformats : 0));
        }
        
	LOCAL_USER_REMOVE(u);
	return 0;
}

int unload_module(void)
{
	STANDARD_HANGUP_LOCALUSERS;
	return ast_unregister_application(app);
}

int load_module(void)
{
	return ast_register_application(app, get_codec_name, synopsis, desc);
}

char *description(void)
{
	return tdesc;
}

int usecount(void)
{
	int res;
	STANDARD_USECOUNT(res);
	return res;
}

char *key()
{
	return ASTERISK_GPL_KEY;
} 







// Save this to app_getcodecname.c, put it to apps directory, edit makefile....
// After calling this function you will get CODECUSED variable filled
with codec name