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/*
* libzvbi - Network identification
*
* Copyright (C) 2004 Michael H. Schimek
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: network.h,v 1.3 2005/01/31 07:15:20 mschimek Exp $ */
#ifndef __ZVBI3_NETWORK_H__
#define __ZVBI3_NETWORK_H__
#include <stdio.h> /* FILE */
#include <inttypes.h> /* int64_t */
#include "macros.h"
VBI3_BEGIN_DECLS
/**
* @addtogroup Network
* @{
*/
/**
* DOCUMENT ME
*/
typedef struct {
/* Locale encoding, NUL-terminated. Can be NULL. */
char * name;
/* NUL-terminated ASCII string, can be empty if unknown.
Only call_sign, cni_vps, cni_8301, cni_8302 and user_data
will be used by libzvbi for channel identification,
whichever is non-zero. */
char call_sign[16];
/* NUL-terminated RFC 1766 / ISO 3166 ASCII string,
e.g. "GB", "FR", "DE". Can be empty if unknown. */
char country_code[4];
/* XDS Info */
unsigned int tape_delay;
/* VPS Info */
unsigned int cni_vps;
/* Teletext Info */
unsigned int cni_8301;
unsigned int cni_8302;
unsigned int cni_pdc_a;
unsigned int cni_pdc_b;
/* Other */
void * user_data;
/* More? */
} vbi3_network;
/**
* The European Broadcasting Union (EBU) maintains several tables
* of Country and Network Identification codes for different
* purposes, presumably the result of independent development.
*/
typedef enum {
VBI3_CNI_TYPE_NONE,
VBI3_CNI_TYPE_UNKNOWN = VBI3_CNI_TYPE_NONE,
/** VPS format, for example from vbi3_decode_vps_cni(). */
VBI3_CNI_TYPE_VPS,
/**
* Teletext packet 8/30 format 1, for example
* from vbi3_decode_teletext_8301_cni().
*/
VBI3_CNI_TYPE_8301,
/**
* Teletext packet 8/30 format 2, for example
* from vbi3_decode_teletext_8302_cni().
*/
VBI3_CNI_TYPE_8302,
/**
* 5 digit PDC Preselection method "A" format
* encoded on Teletext pages.
*/
VBI3_CNI_TYPE_PDC_A,
/**
* 4 digit (0x3nnn) PDC Preselection method "B" format
* encoded in Teletext packet X/26 local enhancement data.
*/
VBI3_CNI_TYPE_PDC_B,
} vbi3_cni_type;
extern const char *
vbi3_cni_type_name (vbi3_cni_type type)
__attribute__ ((const));
extern unsigned int
vbi3_convert_cni (vbi3_cni_type to_type,
vbi3_cni_type from_type,
unsigned int cni)
__attribute__ ((const));
extern vbi3_bool
vbi3_network_is_anonymous (const vbi3_network * nk)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_equal (const vbi3_network * nk1,
const vbi3_network * nk2)
__attribute__ ((_vbi3_nonnull (1, 2)));
extern vbi3_bool
vbi3_network_weak_equal (const vbi3_network * nk1,
const vbi3_network * nk2)
__attribute__ ((_vbi3_nonnull (1, 2)));
extern char *
vbi3_network_id_string (const vbi3_network * nk)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_set_name (vbi3_network * nk,
const char * name)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_set_call_sign (vbi3_network * nk,
const char * call_sign)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_set_cni (vbi3_network * nk,
vbi3_cni_type type,
unsigned int cni)
__attribute__ ((_vbi3_nonnull (1)));
extern void
vbi3_network_reset (vbi3_network * nk)
__attribute__ ((_vbi3_nonnull (1)));
extern void
vbi3_network_destroy (vbi3_network * nk)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_set (vbi3_network * dst,
const vbi3_network * src)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_copy (vbi3_network * dst,
const vbi3_network * src)
__attribute__ ((_vbi3_nonnull (1)));
extern vbi3_bool
vbi3_network_init (vbi3_network * nk)
__attribute__ ((_vbi3_nonnull (1)));
extern void
vbi3_network_array_delete (vbi3_network * nk,
unsigned int n_elements);
/* Private */
extern void
_vbi3_network_dump (const vbi3_network * nk,
FILE * fp)
__attribute__ ((_vbi3_nonnull (1, 2)));
extern vbi3_bool
_vbi3_network_set_name_from_ttx_header
(vbi3_network * nk,
const uint8_t buffer[40])
__attribute__ ((_vbi3_nonnull (1, 2)));
/** @} */
VBI3_END_DECLS
#endif /* __ZVBI3_NETWORK_H__ */
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