/usr/include/dvbpsi/atsc_ett.h is in libdvbpsi-dev 1.3.2-1.
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
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
ett.h
*/
/*!
* \file atsc_ett.h
* \author Adam Charrett
* \brief Decode PSIP Extented Text Table (ATSC ETT).
*/
#ifndef _ATSC_ETT_H
#define _ATSC_ETT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_ett_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_ett_s
* \brief ATSC ETT structure.
*
* The Extended Text Table (ETT) contains Extended Text Message (ETM) streams. They
* provide detailed descriptions of virtual channels (channel ETM) and (event ETM).
* An ETM consist of a multiple string data structure (see Section 6.10), and thus, it
* may represent a description in several different languages (each string corresponding
* to one language).
*/
/*!
* \typedef struct dvbpsi_atsc_ett_s dvbpsi_atsc_ett_t
* \brief dvbpsi_atsc_ett_t type definition.
*
* This structure is used to store a decoded ETT.
* (ATSC document A/56-2009, section 6.6.)
*/
typedef struct dvbpsi_atsc_ett_s
{
/* general PSI table */
uint8_t i_table_id; /*!< table id */
uint16_t i_extension; /*!< subtable id:
ETT Table ID extension,
normally 0x0000 */
uint8_t i_version; /*!< version_number */
bool b_current_next; /*!< current_next_indicator */
uint8_t i_protocol; /*!< PSIP Protocol version */
/* ETT specific */
uint32_t i_etm_id; /*!< ETM Identifier, made up of
source id and event id
(or 0 for channel ETT) */
uint32_t i_etm_length; /*!< length of p_etm_data */
uint8_t *p_etm_data; /*!< ETM data organized as a
multiple string structure */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
} dvbpsi_atsc_ett_t;
/*****************************************************************************
* dvbpsi_atsc_ett_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_ett_callback)(void* p_cb_data,
dvbpsi_atsc_ett_t* p_new_ett)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_ett_callback)(void* p_cb_data, dvbpsi_atsc_ett_t* p_new_ett);
/*****************************************************************************
* dvbpsi_atsc_AttachETT
*****************************************************************************/
/*!
* \fn bool dvbpsi_atsc_AttachETT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id,
uint16_t i_extension, dvbpsi_atsc_ett_callback pf_callback, void* p_cb_data)
*
* \brief Creation and initialization of a ETT decoder.
* \param p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached
* \param i_table_id Table ID, 0xCC.
* \param i_extension Table ID extension, normally 0x0000.
* \param pf_callback function to call back on new ETT.
* \param p_cb_data private data given in argument to the callback.
* \return true if everything went ok, else it returns false.
*/
bool dvbpsi_atsc_AttachETT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_atsc_ett_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_atsc_DetachETT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachETT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
*
* \brief Destroy a ETT decoder.
* \param p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached
* \param i_table_id Table ID, 0xCD.
* \param i_extension Table ID extension, normally 0x0000.
* \return nothing.
*/
void dvbpsi_atsc_DetachETT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id,
uint16_t i_extension);
/*****************************************************************************
* dvbpsi_atsc_InitETT/dvbpsi_atsc_NewETT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitETT(dvbpsi_atsc_ett_t *p_ett, uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol, uint32_t i_etm_id, bool b_current_next);
* \brief Initialize a user-allocated dvbpsi_atsc_ett_t structure.
* \param p_ett pointer to the ETT structure
* \param i_table_id Table ID, 0xCC.
* \param i_extension Table ID extension, normally 0x0000.
* \param i_version version
* \param i_protocol PSIP Protocol version.
* \param i_etm_id ETM Identifier.
* \param b_current_next current next indicator
* \return nothing.
*/
void dvbpsi_atsc_InitETT(dvbpsi_atsc_ett_t *p_ett, uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol,
uint32_t i_etm_id, bool b_current_next);
/*!
* \fn dvbpsi_atsc_ett_t *dvbpsi_atsc_NewETT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol,
uint32_t i_etm_id, bool b_current_next)
* \brief Allocate and initialize a new dvbpsi_atsc_ett_t structure. Use ObjectRefDec to delete it.
* \param i_table_id Table ID, 0xCC.
* \param i_extension Table ID extension, normally 0x0000.
* \param i_version version
* \param i_protocol PSIP Protocol version.
* \param i_etm_id ETM Identifier.
* \param b_current_next current next indicator
* \returns p_ett pointer to the ETT structure, NULL otherwise
*/
dvbpsi_atsc_ett_t *dvbpsi_atsc_NewETT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, uint8_t i_protocol,
uint32_t i_etm_id, bool b_current_next);
/*****************************************************************************
* dvbpsi_atsc_EmptyETT/dvbpsi_atsc_DeleteETT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptyETT(dvbpsi_atsc_ett_t* p_ett)
* \brief Clean a dvbpsi_atsc_ett_t structure.
* \param p_ett pointer to the ETT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptyETT(dvbpsi_atsc_ett_t *p_ett);
/*!
* \fn void dvbpsi_atsc_DeleteETT(dvbpsi_atsc_ett_t *p_ett);
* \brief Clean and free a dvbpsi_atsc_ett_t structure.
* \param p_ett pointer to the ETT structure
* \return nothing.
*/
void dvbpsi_atsc_DeleteETT(dvbpsi_atsc_ett_t *p_ett);
#ifdef __cplusplus
};
#endif
#endif
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