/usr/include/dvbpsi/dr_45.h is in libdvbpsi-dev 1.0.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* dr_45.h
* Copyright (C) 2004-2010 VideoLAN
* $Id$
*
* Authors: Jean-Paul Saman <jpsaman@videolan.org>
*
* 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
*
*****************************************************************************/
/*!
* \file <dr_45.h>
* \author Jean-Paul Saman <jpsaman@videolan.org>
* \brief VBI data descriptor parsing.
*
* DVB VBI data descriptor parsing, according to ETSI EN 300 468
* version 1.7.1 section 6.2.46
*
* NOTE: this descriptor is known by tag value 0x45
*/
#ifndef _DVBPSI_DR_45_H_
#define _DVBPSI_DR_45_H_
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_vbidata_line_t
*****************************************************************************/
/*!
* \struct dvbpsi_vbidata_line_s
* \brief one VBI Data line structure.
*
* This structure is used since vbidata_t structure will contain several
* of these structures
*/
/*!
* \typedef struct dvbpsi_vbidata_line_s dvbpsi_vbidata_line_t
* \brief dvbpsi_vbidata_line_t type definition.
*/
typedef struct dvbpsi_vbidata_line_s
{
uint8_t i_parity; /*!< parity bit (1 bits) */
uint8_t i_line_offset; /*!< line offset (5 bits) */
} dvbpsi_vbidata_line_t;
/*****************************************************************************
* dvbpsi_vbidata_t
*****************************************************************************/
/*!
* \struct dvbpsi_vbidata_s
* \brief one VBI data structure.
*
* This structure is used since vbi_descriptor will contain several
* of these structures
*/
/*!
* \typedef struct dvbpsi_vbidata_s dvbpsi_vbidata_t
* \brief dvbpsi_vbidata_t type definition.
*/
typedef struct dvbpsi_vbidata_s
{
uint8_t i_data_service_id; /*!< data service id (8 bits) */
uint8_t i_lines; /*!< number of lines */
dvbpsi_vbidata_line_t p_lines[255]; /*!< VBI lines data */
} dvbpsi_vbidata_t;
/*****************************************************************************
* dvbpsi_vbi_dr_t
*****************************************************************************/
/*!
* \struct dvbpsi_vbi_dr_s
* \brief "teletext" descriptor structure.
*
* This structure is used to store a decoded "VBI data"
* descriptor. (ETSI EN 300 468 version 1.7.1 section 6.2.46).
*/
/*!
* \typedef struct dvbpsi_vbi_dr_s dvbpsi_vbi_dr_t
* \brief dvbpsi_vbi_dr_t type definition.
*/
typedef struct dvbpsi_vbi_dr_s
{
uint8_t i_services_number; /*!< service number */
dvbpsi_vbidata_t p_services[85]; /*!< services table */
} dvbpsi_vbi_dr_t;
/*****************************************************************************
* dvbpsi_DecodeVBIDataDr
*****************************************************************************/
/*!
* \fn dvbpsi_vbi_dr_t * dvbpsi_DecodeVBIDataDr(
dvbpsi_descriptor_t * p_descriptor)
* \brief "VBI data" descriptor decoder.
* \param p_descriptor pointer to the descriptor structure
* \return a pointer to a new "VBI data" descriptor structure
* which contains the decoded data.
*/
dvbpsi_vbi_dr_t* dvbpsi_DecodeVBIDataDr(
dvbpsi_descriptor_t * p_descriptor);
/*****************************************************************************
* dvbpsi_GenVBIDataDr
*****************************************************************************/
/*!
* \fn dvbpsi_descriptor_t * dvbpsi_GenVBIDataDr(
dvbpsi_vbi_dr_t * p_decoded, bool b_duplicate)
* \brief "VBI data" descriptor generator.
* \param p_decoded pointer to a decoded "VBI data" descriptor
* structure
* \param b_duplicate if true then duplicate the p_decoded structure into
* the descriptor
* \return a pointer to a new descriptor structure which contains encoded data.
*/
dvbpsi_descriptor_t * dvbpsi_GenVBIDataDr(
dvbpsi_vbi_dr_t * p_decoded,
bool b_duplicate);
#ifdef __cplusplus
};
#endif
#else
#error "Multiple inclusions of dr_45.h"
#endif
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