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/*
* Asterisk -- A telephony toolkit for Linux.
*
* UDPTL support for T.38
*
* Copyright (C) 2005, Steve Underwood, partly based on RTP code which is
* Copyright (C) 1999-2004, Digium, Inc.
*
* Steve Underwood <steveu@coppice.org>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*
* A license has been granted to Digium (via disclaimer) for the use of
* this code.
*/
#ifndef _ASTERISK_UDPTL_H
#define _ASTERISK_UDPTL_H
#include "asterisk/frame.h"
#include "asterisk/io.h"
#include "asterisk/sched.h"
#include "asterisk/channel.h"
#include <netinet/in.h>
enum
{
UDPTL_ERROR_CORRECTION_NONE,
UDPTL_ERROR_CORRECTION_FEC,
UDPTL_ERROR_CORRECTION_REDUNDANCY
};
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
struct ast_udptl_protocol {
/* Get UDPTL struct, or NULL if unwilling to transfer */
struct ast_udptl *(*get_udptl_info)(struct ast_channel *chan);
/* Set UDPTL peer */
int (* const set_udptl_peer)(struct ast_channel *chan, struct ast_udptl *peer);
const char * const type;
struct ast_udptl_protocol *next;
};
struct ast_udptl;
typedef int (*ast_udptl_callback)(struct ast_udptl *udptl, struct ast_frame *f, void *data);
struct ast_udptl *ast_udptl_new(struct sched_context *sched, struct io_context *io, int callbackmode);
struct ast_udptl *ast_udptl_new_with_bindaddr(struct sched_context *sched, struct io_context *io, int callbackmode, struct in_addr in);
void ast_udptl_set_peer(struct ast_udptl *udptl, struct sockaddr_in *them);
void ast_udptl_get_peer(struct ast_udptl *udptl, struct sockaddr_in *them);
void ast_udptl_get_us(struct ast_udptl *udptl, struct sockaddr_in *us);
void ast_udptl_destroy(struct ast_udptl *udptl);
void ast_udptl_reset(struct ast_udptl *udptl);
void ast_udptl_set_callback(struct ast_udptl *udptl, ast_udptl_callback callback);
void ast_udptl_set_data(struct ast_udptl *udptl, void *data);
int ast_udptl_write(struct ast_udptl *udptl, struct ast_frame *f);
struct ast_frame *ast_udptl_read(struct ast_udptl *udptl);
int ast_udptl_fd(struct ast_udptl *udptl);
int ast_udptl_settos(struct ast_udptl *udptl, int tos);
void ast_udptl_set_m_type(struct ast_udptl* udptl, int pt);
void ast_udptl_set_udptlmap_type(struct ast_udptl* udptl, int pt,
char* mimeType, char* mimeSubtype);
int ast_udptl_lookup_code(struct ast_udptl* udptl, int isAstFormat, int code);
void ast_udptl_offered_from_local(struct ast_udptl* udptl, int local);
int ast_udptl_get_error_correction_scheme(struct ast_udptl* udptl);
void ast_udptl_set_error_correction_scheme(struct ast_udptl* udptl, int ec);
int ast_udptl_get_local_max_datagram(struct ast_udptl* udptl);
void ast_udptl_set_local_max_datagram(struct ast_udptl* udptl, int max_datagram);
int ast_udptl_get_far_max_datagram(struct ast_udptl* udptl);
void ast_udptl_set_far_max_datagram(struct ast_udptl* udptl, int max_datagram);
void ast_udptl_get_current_formats(struct ast_udptl* udptl,
int* astFormats, int* nonAstFormats);
void ast_udptl_setnat(struct ast_udptl *udptl, int nat);
int ast_udptl_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc);
int ast_udptl_proto_register(struct ast_udptl_protocol *proto);
void ast_udptl_proto_unregister(struct ast_udptl_protocol *proto);
void ast_udptl_stop(struct ast_udptl *udptl);
void ast_udptl_init(void);
void ast_udptl_reload(void);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif
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