/usr/include/dvbpsi/atsc_mgt.h is in libdvbpsi-dev 1.2.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2006 Adam Charrett
Copyright (C) 2011-2012 Michael Krufky
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
mgt.h
Decode PSIP Master Guide Table.
*/
/*!
* \file atsc_mgt.h
* \author Adam Charrett and Michael Krufky
* \brief Decode PSIP Master Guide Table (ATSC MGT).
*/
#ifndef _ATSC_MGT_H
#define _ATSC_MGT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_mgt_table_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_mgt_table_s
* \brief MGT table structure.
*
* This structure is used to store a decoded MGT table information.
*/
/*!
* \typedef struct dvbpsi_atsc_mgt_table_s dvbpsi_atsc_mgt_table_t
* \brief dvbpsi_atsc_mgt_table_t type definition.
*/
typedef struct dvbpsi_atsc_mgt_table_s
{
uint16_t i_table_type; /*!< type of table */
uint16_t i_table_type_pid; /*!< PID of table */
uint8_t i_table_type_version; /*!< version of table */
uint32_t i_number_bytes; /*!< bytes used for table */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
struct dvbpsi_atsc_mgt_table_s *p_next; /*!< next element of the list */
} dvbpsi_atsc_mgt_table_t;
/*****************************************************************************
* dvbpsi_atsc_mgt_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_mgt_s
* \brief MGT structure.
*
* This structure is used to store a decoded MGT.
*/
/*!
* \typedef struct dvbpsi_atsc_mgt_s dvbpsi_atsc_mgt_t
* \brief dvbpsi_atsc_mgt_t type definition.
*/
typedef struct dvbpsi_atsc_mgt_s
{
uint8_t i_table_id; /*!< Table id */
uint16_t i_extension; /*!< Subtable id */
uint8_t i_version; /*!< version_number */
bool b_current_next; /*!< current_next_indicator */
uint16_t i_table_id_ext; /*!< 0x0000 */
uint8_t i_protocol; /*!< PSIP Protocol version */
dvbpsi_atsc_mgt_table_t *p_first_table; /*!< First table information structure. */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
} dvbpsi_atsc_mgt_t;
/*****************************************************************************
* dvbpsi_mgt_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_mgt_callback)(void* p_cb_data,
dvbpsi_atsc_mgt_t* p_new_mgt)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_mgt_callback)(void* p_cb_data, dvbpsi_atsc_mgt_t* p_new_mgt);
/*****************************************************************************
* dvbpsi_atsc_AttachMGT
*****************************************************************************/
/*!
* \fn bool dvbpsi_atsc_AttachMGT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_atsc_mgt_callback pf_callback, void* p_cb_data)
*
* \brief Creation and initialization of a MGT decoder.
* \param p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached
* \param i_table_id Table ID, 0xC7.
* \param i_extension Table ID extension, here 0x0000.
* \param pf_callback function to call back on new MGT.
* \param p_cb_data private data given in argument to the callback.
* \return true if everything went ok, false otherwise
*/
bool dvbpsi_atsc_AttachMGT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_atsc_mgt_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_DetachMGT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachMGT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
*
* \brief Destroy a MGT decoder.
* \param p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached
* \param i_table_id Table ID, 0xC7.
* \param i_extension Table ID extension, here 0x0000.
* \return nothing.
*/
void dvbpsi_atsc_DetachMGT(dvbpsi_t * p_dvbpsi, uint8_t i_table_id, uint16_t i_extension);
/*****************************************************************************
* dvbpsi_atsc_InitMGT/dvbpsi_atsc_NewMGT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitMGT(dvbpsi_atsc_mgt_t* p_mgt, uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol, bool b_current_next);
* \brief Initialize a user-allocated dvbpsi_atsc_mgt_t structure.
* \param p_mgt pointer to the MGT structure
* \param i_table_id Table ID, 0xC7.
* \param i_extension Table ID extension, here 0x0000.
* \param i_version MGT version
* \param i_protocol PSIP Protocol version.
* \param b_current_next current next indicator
* \return nothing.
*/
void dvbpsi_atsc_InitMGT(dvbpsi_atsc_mgt_t* p_mgt, uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol, bool b_current_next);
/*!
* \fn dvbpsi_atsc_mgt_t *dvbpsi_atsc_NewMGT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol, bool b_current_next);
* \brief Allocate and initialize a new dvbpsi_mgt_t structure.
* \param i_table_id Table ID, 0xC7.
* \param i_extension Table ID extension, here 0x0000.
* \param i_version MGT version
* \param i_protocol PSIP Protocol version.
* \param b_current_next current next indicator
* \return p_mgt pointer to the MGT structure, or NULL on failure
*/
dvbpsi_atsc_mgt_t *dvbpsi_atsc_NewMGT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol, bool b_current_next);
/*****************************************************************************
* dvbpsi_atsc_EmptyMGT/dvbpsi_atsc_DeleteMGT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptyMGT(dvbpsi_atsc_mgt_t* p_mgt)
* \brief Clean a dvbpsi_mgt_t structure.
* \param p_mgt pointer to the MGT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptyMGT(dvbpsi_atsc_mgt_t *p_mgt);
/*!
* \fn void dvbpsi_atsc_DeleteMGT(dvbpsi_atsc_mgt_t *p_mgt);
* \brief Clean and free a dvbpsi_mgt_t structure.
* \param p_mgt pointer to the MGT structure
* \return nothing.
*/
void dvbpsi_atsc_DeleteMGT(dvbpsi_atsc_mgt_t *p_mgt);
#ifdef __cplusplus
};
#endif
#endif
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