/usr/include/dvbpsi/eit.h is in libdvbpsi-dev 1.2.0-1.
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* eit.h
* Copyright (C) 2004-2011 VideoLAN
* $Id: eit.h 88 2004-02-24 14:31:18Z sam $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
* 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 <eit.h>
* \author Christophe Massiot <massiot@via.ecp.fr>
* \brief Application interface for the EIT decoder and the EIT generator.
*
* Application interface for the EIT decoder and the EIT generator.
* New decoded EIT tables are sent by callback to the application.
*/
#ifndef _DVBPSI_EIT_H_
#define _DVBPSI_EIT_H_
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_eit_event_t
*****************************************************************************/
/*!
* \struct dvbpsi_eit_event_s
* \brief EIT service description structure.
*
* This structure is used to store a decoded EIT event description.
* (ETSI EN 300 468 V1.5.1 section 5.2.4).
*/
/*!
* \typedef struct dvbpsi_eit_service_s dvbpsi_eit_event_t
* \brief dvbpsi_eit_event_t type definition.
*/
typedef struct dvbpsi_eit_event_s
{
uint16_t i_event_id; /*!< event_id */
uint64_t i_start_time; /*!< start_time */
uint32_t i_duration; /*!< duration */
uint8_t i_running_status; /*!< Running status */
bool b_free_ca; /*!< Free CA mode flag */
bool b_nvod; /*!< Unscheduled NVOD Event */
uint16_t i_descriptors_length; /*!< Descriptors loop
length */
dvbpsi_descriptor_t * p_first_descriptor; /*!< First of the following
DVB descriptors */
struct dvbpsi_eit_event_s * p_next; /*!< next element of
the list */
} dvbpsi_eit_event_t;
/*****************************************************************************
* dvbpsi_eit_t
*****************************************************************************/
/*!
* \struct dvbpsi_eit_s
* \brief EIT structure.
*
* This structure is used to store a decoded EIT.
* (ETSI EN 300 468 V1.5.1 section 5.2.4).
*/
/*!
* \typedef struct dvbpsi_eit_s dvbpsi_eit_t
* \brief dvbpsi_eit_t type definition.
*/
typedef struct dvbpsi_eit_s
{
uint8_t i_table_id; /*!< table id */
uint16_t i_extension; /*!< subtable id, here service_id */
uint8_t i_version; /*!< version_number */
bool b_current_next; /*!< current_next_indicator */
uint16_t i_ts_id; /*!< transport stream id */
uint16_t i_network_id; /*!< original network id */
uint8_t i_segment_last_section_number; /*!< segment last section number */
uint8_t i_last_table_id; /*!< last table id */
dvbpsi_eit_event_t *p_first_event; /*!< event information list */
} dvbpsi_eit_t;
/*****************************************************************************
* dvbpsi_eit_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_eit_callback)(void* p_cb_data, dvbpsi_eit_t* p_new_eit)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_eit_callback)(void* p_cb_data, dvbpsi_eit_t* p_new_eit);
/*****************************************************************************
* dvbpsi_AttachEIT
*****************************************************************************/
/*!
* \fn bool dvbpsi_eit_attach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id,
uint16_t i_extension, dvbpsi_eit_callback pf_callback,
void* p_cb_data)
* \brief Creation and initialization of a EIT decoder.
* \param p_dvbpsi pointer to Subtable demultiplexor to which the EIT decoder is attached.
* \param i_table_id Table ID, 0x4E, 0x4F, or 0x50-0x6F.
* \param i_extension Table ID extension, here service ID.
* \param pf_callback function to call back on new EIT.
* \param p_cb_data private data given in argument to the callback.
* \return true on success, false on failure
*/
bool dvbpsi_eit_attach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension,
dvbpsi_eit_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_eit_detach
*****************************************************************************/
/*!
* \fn void dvbpsi_eit_detach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id,
uint16_t i_extension)
* \brief Destroy a EIT decoder.
* \param p_dvbpsi dvbpsi handle pointing to Subtable demultiplexor to which the
eit decoder is attached.
* \param i_table_id Table ID, 0x4E, 0x4F, or 0x50-0x6F.
* \param i_extension Table ID extension, here service ID.
* \return nothing.
*/
void dvbpsi_eit_detach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension);
/*****************************************************************************
* dvbpsi_eit_init/dvbpsi_eit_new
*****************************************************************************/
/*!
* \fn void dvbpsi_eit_init(dvbpsi_eit_t* p_eit, uint8_t i_table_id,
uint16_t i_extension, uint8_t i_version,
bool b_current_next, uint16_t i_ts_id, uint16_t i_network_id,
uint8_t i_segment_last_section_number,
uint8_t i_last_table_id);
* \brief Initialize a user-allocated dvbpsi_eit_t structure.
* \param p_eit pointer to the EIT structure
* \param i_table_id Table ID, 0x4E, 0x4F, or 0x50-0x6F.
* \param i_extension Table ID extension, here service ID.
* \param i_version EIT version
* \param b_current_next current next indicator
* \param i_ts_id transport stream ID
* \param i_network_id original network id
* \param i_segment_last_section_number segment_last_section_number
* \param i_last_table_id i_last_table_id
* \return nothing.
*/
void dvbpsi_eit_init(dvbpsi_eit_t* p_eit, uint8_t i_table_id,
uint16_t i_extension, uint8_t i_version,
bool b_current_next, uint16_t i_ts_id, uint16_t i_network_id,
uint8_t i_segment_last_section_number,
uint8_t i_last_table_id);
/*!
* \fn dvbpsi_eit_t* dvbpsi_eit_new(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, bool b_current_next,
uint16_t i_ts_id, uint16_t i_network_id, uint8_t i_segment_last_section_number,
uint8_t i_last_table_id)
* \brief Allocate and initialize a new dvbpsi_eit_t structure.
* \param i_table_id Table ID, 0x4E, 0x4F, or 0x50-0x6F.
* \param i_extension Table ID extension, here service ID.
* \param i_version EIT version
* \param b_current_next current next indicator
* \param i_ts_id transport stream ID
* \param i_network_id original network id
* \param i_segment_last_section_number segment_last_section_number
* \param i_last_table_id i_last_table_id
* \return p_eit pointer to the EIT structure
*/
dvbpsi_eit_t* dvbpsi_eit_new(uint8_t i_table_id, uint16_t i_extension,
uint8_t i_version, bool b_current_next,
uint16_t i_ts_id, uint16_t i_network_id,
uint8_t i_segment_last_section_number,
uint8_t i_last_table_id);
/*****************************************************************************
* dvbpsi_eit_empty/dvbpsi_eit_delete
*****************************************************************************/
/*!
* \fn void dvbpsi_eit_empty(dvbpsi_eit_t* p_eit)
* \brief Clean a dvbpsi_eit_t structure.
* \param p_eit pointer to the EIT structure
* \return nothing.
*/
void dvbpsi_eit_empty(dvbpsi_eit_t* p_eit);
/*!
* \fn void dvbpsi_eit_delete(dvbpsi_eit_t *p_eit)
* \brief Clean and free a dvbpsi_eit_t structure.
* \param p_eit pointer to the EIT structure
* \return nothing.
*/
void dvbpsi_eit_delete(dvbpsi_eit_t* p_eit);
/*****************************************************************************
* dvbpsi_eit_event_add
*****************************************************************************/
/*!
* \fn dvbpsi_eit_event_t* dvbpsi_eit_event_add(dvbpsi_eit_t* p_eit,
uint16_t i_event_id,
uint64_t i_start_time,
uint32_t i_duration,
uint8_t i_running_status,
bool b_free_ca,
uint16_t i_event_descriptor_length)
* \brief Add a service description at the end of the EIT.
* \param p_eit pointer to the EIT structure
* \param i_event_id Event ID
* \param i_start_time Start Time
* \param i_duration Duration
* \param i_running_status Running status
* \param b_free_ca Free CA flag
* \param i_event_descriptor_length The descriptors loop length in bytes of
all descriptors for this event.
* \return a pointer to the added service description.
*/
dvbpsi_eit_event_t* dvbpsi_eit_event_add(dvbpsi_eit_t* p_eit,
uint16_t i_event_id, uint64_t i_start_time, uint32_t i_duration,
uint8_t i_running_status, bool b_free_ca,
uint16_t i_event_descriptor_length);
/*****************************************************************************
* dvbpsi_eit_nvod_event_add
*****************************************************************************/
/*!
* \fn dvbpsi_eit_event_t* dvbpsi_eit_nvod_event_add(dvbpsi_eit_t* p_eit,
uint16_t i_event_id,
uint32_t i_duration,
bool b_free_ca,
uint16_t i_event_descriptor_length)
* \brief Add a NVOD service description at the end of the EIT.
* \param p_eit pointer to the EIT structure
* \param i_event_id Event ID
* \param i_duration Duration
* \param b_free_ca Free CA flag
* \param i_event_descriptor_length The descriptors loop length in bytes of
all descriptors for this event.
* \return a pointer to the added service description.
*/
dvbpsi_eit_event_t* dvbpsi_eit_nvod_event_add(dvbpsi_eit_t* p_eit,
uint16_t i_event_id, uint32_t i_duration, bool b_free_ca,
uint16_t i_event_descriptor_length);
/*****************************************************************************
* dvbpsi_eit_event_descriptor_add
*****************************************************************************/
/*!
* \fn dvbpsi_descriptor_t* dvbpsi_eit_event_descriptor_add(
dvbpsi_eit_event_t* p_event,
uint8_t i_tag, uint8_t i_length,
uint8_t* p_data)
* \brief Add a descriptor to the EIT event.
* \param p_event pointer to the EIT event structure
* \param i_tag descriptor's tag
* \param i_length descriptor's length
* \param p_data descriptor's data
* \return a pointer to the added descriptor.
*/
dvbpsi_descriptor_t* dvbpsi_eit_event_descriptor_add(
dvbpsi_eit_event_t* p_event,
uint8_t i_tag, uint8_t i_length,
uint8_t* p_data);
/*****************************************************************************
* dvbpsi_eit_sections_generate
*****************************************************************************
* Generate EIT sections based on the dvbpsi_eit_t structure.
*****************************************************************************/
/*!
* \fn dvbpsi_psi_section_t *dvbpsi_eit_sections_generate(dvbpsi_t *p_dvbpsi, dvbpsi_eit_t *p_eit,
* uint8_t i_table_id);
* \brief Generate a EIT section based on the information provided in p_eit.
* \param p_dvbpsi pointer to Subtable demultiplexor to which the EIT decoder is attached.
* \param p_eit pointer to EIT information to include in the PSI secion
* \param i_table_id the EIT table id to use
* \return a pointer to a new PSI section
*/
dvbpsi_psi_section_t *dvbpsi_eit_sections_generate(dvbpsi_t *p_dvbpsi, dvbpsi_eit_t *p_eit,
uint8_t i_table_id);
#ifdef __cplusplus
};
#endif
#else
#error "Multiple inclusions of eit.h"
#endif
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