/usr/include/dvbpsi/atsc_stt.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) 2006-2012 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
stt.h
*/
/*!
* \file atsc_stt.h
* \author Adam Charrett
* \brief Decode PSIP System Time Table (ATSC STT).
*/
#ifndef _ATSC_STT_H
#define _ATSC_STT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_stt_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_stt_s
* \brief STT structure.
*
* This structure is used to store a decoded STT.
*/
/*!
* \typedef struct dvbpsi_atsc_stt_s dvbpsi_atsc_stt_t
* \brief dvbpsi_atsc_stt_t type definition.
*/
typedef struct dvbpsi_atsc_stt_s
{
uint8_t i_table_id; /*!< Table id */
uint16_t i_extension; /*!< Subtable id */
uint8_t i_version; /*!< PSIP Protocol version */
bool b_current_next; /*!< current_next_indicator */
uint32_t i_system_time; /*!< GPS seconds since 1 January 1980 00:00:00 UTC. */
uint8_t i_gps_utc_offset; /*!< Seconds offset between GPS and UTC time. */
uint16_t i_daylight_savings; /*!< Daylight savings control bytes. */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
} dvbpsi_atsc_stt_t;
/*****************************************************************************
* dvbpsi_atsc_stt_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_stt_callback)(void* p_cb_data,
dvbpsi_atsc_stt_t* p_new_stt)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_stt_callback)(void* p_cb_data, dvbpsi_atsc_stt_t* p_new_stt);
/*****************************************************************************
* dvbpsi_atsc_AttachSTT
*****************************************************************************/
/*!
* \fn bool dvbpsi_atsc_AttachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_atsc_stt_callback pf_stt_callback, void* p_cb_data)
* \brief Creation and initialization of a STT 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, here it should be 0.
* \param pf_stt_callback function to call back on new STT.
* \param p_cb_data private data given in argument to the callback.
* \return true if everything went ok else false
*/
bool dvbpsi_atsc_AttachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_atsc_stt_callback pf_stt_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_atsc_DetachSTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
*
* \brief Destroy a STT 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 extension, ignored as this should always be 0.
* (Required to match prototype for demux)
* \return nothing.
*/
void dvbpsi_atsc_DetachSTT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_externsion);
/*****************************************************************************
* dvbpsi_atsc_InitSTT/dvbpsi_atsc_NewSTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitSTT(dvbpsi_atsc_stt_t *p_stt, uint8_t i_table_id,
uint16_t i_extension, uint8_t i_protocol,
bool b_current_next)
* \brief Initialize a user-allocated dvbpsi_atsc_stt_t structure.
* \param p_stt pointer to the STT structure
* \param i_table_id Table ID, 0xCD.
* \param i_extension Table extension, ignored as this should always be 0.
* \param i_protocol PSIP Protocol version.
* \param b_current_next current next indicator
* \return nothing.
*/
void dvbpsi_atsc_InitSTT(dvbpsi_atsc_stt_t *p_stt, uint8_t i_table_id, uint16_t i_extension,
uint8_t i_protocol, bool b_current_next);
/*!
* \fn dvbpsi_atsc_stt_t *dvbpsi_atsc_NewSTT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, bool b_current_next)
* \brief Allocate and initialize a new dvbpsi_atsc_stt_t structure. Use ObjectRefDec to delete it.
* \param i_table_id Table ID, 0xCD.
* \param i_extension Table extension, ignored as this should always be 0.
* \param i_version PSIP Protocol version.
* \param b_current_next current next indicator
* \return p_stt pointer to the STT structure
*/
dvbpsi_atsc_stt_t *dvbpsi_atsc_NewSTT(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, bool b_current_next);
/*****************************************************************************
* dvbpsi_atsc_EmptySTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptySTT(dvbpsi_atsc_stt_t* p_stt)
* \brief Clean a dvbpsi_atsc_stt_t structure.
* \param p_stt pointer to the STT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptySTT(dvbpsi_atsc_stt_t *p_stt);
/*!
* \fn dvbpsi_atsc_DeleteSTT(dvbpsi_atsc_stt_t *p_stt)
* \brief Clean and free a dvbpsi_atsc_stt_t structure.
* \param p_stt pointer to the STT structure
* \return nothing.
*/
void dvbpsi_atsc_DeleteSTT(dvbpsi_atsc_stt_t *p_stt);
#ifdef __cplusplus
};
#endif
#endif
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