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