libdvbv5  1.16.3
Library to work with Digital TV devices on Linux
mgt.h
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1 /*
2  * Copyright (c) 2013 - Andre Roth <neolynx@gmail.com>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License as published by
6  * the Free Software Foundation version 2.1 of the License.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program; if not, write to the Free Software
15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16  * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
17  *
18  */
19 
38 #ifndef _MGT_H
39 #define _MGT_H
40 
41 #include <stdint.h>
42 #include <unistd.h> /* ssize_t */
43 
44 #include <libdvbv5/atsc_header.h>
45 
51 #define ATSC_TABLE_MGT 0xC7
52 
78  uint16_t type;
79  union {
80  uint16_t bitfield;
81  struct {
82  uint16_t pid:13;
83  uint16_t one:3;
84  } __attribute__((packed));
85  } __attribute__((packed));
86  uint8_t type_version:5;
87  uint8_t one2:3;
88  uint32_t size;
89  union {
90  uint16_t bitfield2;
91  struct {
92  uint16_t desc_length:12;
93  uint16_t one3:4;
94  } __attribute__((packed));
95  } __attribute__((packed));
98 } __attribute__((packed));
99 
123  struct dvb_table_header header;
125  uint16_t tables;
128 } __attribute__((packed));
129 
136 #define atsc_mgt_table_foreach( _table, _mgt ) \
137  if (_mgt && _mgt->_table) \
138  for( struct atsc_table_mgt_table *_table = _mgt->table; _table; _table = _table->next ) \
139 
140 struct dvb_v5_fe_parms;
141 
142 #ifdef __cplusplus
143 extern "C" {
144 #endif
145 
162 ssize_t atsc_table_mgt_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf,
163  ssize_t buflen, struct atsc_table_mgt **table);
164 
172 
181  struct atsc_table_mgt *table);
182 
183 #ifdef __cplusplus
184 }
185 #endif
186 
187 #endif
atsc_table_mgt_table::descriptor
struct dvb_desc * descriptor
Definition: mgt.h:96
atsc_table_mgt_table::type_version
uint8_t type_version
Definition: mgt.h:86
atsc_table_mgt_table::one3
uint16_t one3
Definition: mgt.h:93
atsc_table_mgt_table::bitfield
uint16_t bitfield
Definition: mgt.h:80
atsc_table_mgt_table::type
uint16_t type
Definition: mgt.h:78
atsc_table_mgt_table::one2
uint8_t one2
Definition: mgt.h:87
atsc_table_mgt_table::bitfield2
uint16_t bitfield2
Definition: mgt.h:90
atsc_table_mgt::header
struct dvb_table_header header
Definition: mgt.h:123
atsc_table_mgt::protocol_version
uint8_t protocol_version
Definition: mgt.h:124
atsc_table_mgt_table::pid
uint16_t pid
Definition: mgt.h:82
atsc_table_mgt_table::next
struct atsc_table_mgt_table * next
Definition: mgt.h:97
atsc_table_mgt_table
ATSC tables descrition at MGT table.
Definition: mgt.h:77
atsc_table_mgt_init
ssize_t atsc_table_mgt_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, ssize_t buflen, struct atsc_table_mgt **table)
Initializes and parses MGT table.
atsc_table_mgt::table
struct atsc_table_mgt_table * table
Definition: mgt.h:126
dvb_v5_fe_parms
Keeps data needed to handle the DVB frontend.
Definition: dvb-fe.h:117
atsc_header.h
Provides some common ATSC stuff.
atsc_table_mgt_table::one
uint16_t one
Definition: mgt.h:83
atsc_table_mgt::tables
uint16_t tables
Definition: mgt.h:125
atsc_table_mgt
ATSC MGT table.
Definition: mgt.h:122
atsc_table_mgt_print
void atsc_table_mgt_print(struct dvb_v5_fe_parms *parms, struct atsc_table_mgt *table)
Prints the content of the MGT table.
atsc_table_mgt_free
void atsc_table_mgt_free(struct atsc_table_mgt *table)
Frees all data allocated by the MGT table parser.
dvb_table_header
Header of a MPEG-TS table.
Definition: header.h:103
atsc_table_mgt::descriptor
struct dvb_desc * descriptor
Definition: mgt.h:127
dvb_desc
Linked list containing the several descriptors found on a MPEG-TS table.
Definition: descriptors.h:117
atsc_table_mgt_table::desc_length
uint16_t desc_length
Definition: mgt.h:92
atsc_table_mgt_table::size
uint32_t size
Definition: mgt.h:88