/***************************************************************************** * sdt.h * Copyright (C) 2001-2011 VideoLAN * $Id$ * * Authors: Johan Bilien * Jean-Paul Saman * * 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 * \author Johan Bilien * \brief Application interface for the SDT decoder and the SDT generator. * * Application interface for the SDT decoder and the SDT generator. * New decoded SDT tables are sent by callback to the application. */ #ifndef _DVBPSI_SDT_H_ #define _DVBPSI_SDT_H_ #ifdef __cplusplus extern "C" { #endif /***************************************************************************** * dvbpsi_sdt_service_t *****************************************************************************/ /*! * \struct dvbpsi_sdt_service_s * \brief SDT service description structure. * * This structure is used to store a decoded SDT service description. * (ETSI EN 300 468 V1.4.1 section 5.2.3). */ /*! * \typedef struct dvbpsi_sdt_service_s dvbpsi_sdt_service_t * \brief dvbpsi_sdt_service_t type definition. */ typedef struct dvbpsi_sdt_service_s { uint16_t i_service_id; /*!< service_id */ bool b_eit_schedule; /*!< EIT schedule flag */ bool b_eit_present; /*!< EIT present/following flag */ uint8_t i_running_status; /*!< Running status */ bool b_free_ca; /*!< Free CA mode flag */ uint16_t i_descriptors_length; /*!< Descriptors loop length */ dvbpsi_descriptor_t * p_first_descriptor; /*!< First of the following DVB descriptors */ struct dvbpsi_sdt_service_s * p_next; /*!< next element of the list */ } dvbpsi_sdt_service_t; /***************************************************************************** * dvbpsi_sdt_t *****************************************************************************/ /*! * \struct dvbpsi_sdt_s * \brief SDT structure. * * This structure is used to store a decoded SDT. * (ETSI EN 300 468 V1.4.1 section 5.2.3). */ /*! * \typedef struct dvbpsi_sdt_s dvbpsi_sdt_t * \brief dvbpsi_sdt_t type definition. */ typedef struct dvbpsi_sdt_s { /* PSI table members */ uint8_t i_table_id; /*!< table id */ uint16_t i_extension; /*!< subtable id, here transport_stream_id */ /* Table specific */ uint8_t i_version; /*!< version_number */ bool b_current_next; /*!< current_next_indicator */ uint16_t i_network_id; /*!< original network id */ dvbpsi_sdt_service_t * p_first_service; /*!< service description list */ } dvbpsi_sdt_t; /***************************************************************************** * dvbpsi_sdt_callback *****************************************************************************/ /*! * \typedef void (* dvbpsi_sdt_callback)(void* p_cb_data, dvbpsi_sdt_t* p_new_sdt) * \brief Callback type definition. */ typedef void (* dvbpsi_sdt_callback)(void* p_cb_data, dvbpsi_sdt_t* p_new_sdt); /***************************************************************************** * dvbpsi_sdt_attach *****************************************************************************/ /*! * \fn bool dvbpsi_sdt_attach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, dvbpsi_sdt_callback pf_callback, void* p_cb_data) * \brief Creation and initialization of a SDT decoder. It is attached to p_dvbpsi. * \param p_dvbpsi pointer to dvbpsi to hold decoder/demuxer structure * \param i_table_id Table ID, 0x42 or 0x46. * \param i_extension Table ID extension, here TS ID. * \param pf_callback function to call back on new SDT. * \param p_cb_data private data given in argument to the callback. * \return true on success, false on failure */ bool dvbpsi_sdt_attach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, dvbpsi_sdt_callback pf_callback, void* p_cb_data); /***************************************************************************** * dvbpsi_sdt_detach *****************************************************************************/ /*! * \fn void dvbpsi_sdt_detach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension) * \brief Destroy a SDT decoder. * \param p_dvbpsi pointer holding decoder/demuxer structure * \param i_table_id Table ID, 0x42 or 0x46. * \param i_extension Table ID extension, here TS ID. * \return nothing. */ void dvbpsi_sdt_detach(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension); /***************************************************************************** * dvbpsi_sdt_init/dvbpsi_NewSDT *****************************************************************************/ /*! * \fn void dvbpsi_sdt_init(dvbpsi_sdt_t* p_sdt, uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next, uint16_t i_network_id) * \brief Initialize a user-allocated dvbpsi_sdt_t structure. * \param p_sdt pointer to the SDT structure * \param i_table_id Table ID, 0x42 or 0x46. * \param i_extension Table ID extension, here TS ID. * \param i_version SDT version * \param b_current_next current next indicator * \param i_network_id original network id * \return nothing. */ void dvbpsi_sdt_init(dvbpsi_sdt_t *p_sdt, uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next, uint16_t i_network_id); /*! * \fn dvbpsi_sdt_t *dvbpsi_sdt_new(uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next, uint16_t i_network_id) * \brief Allocate and initialize a new dvbpsi_sdt_t structure. * \param i_table_id Table ID, 0x42 or 0x46. * \param i_extension Table ID extension, here TS ID. * \param i_version SDT version * \param b_current_next current next indicator * \param i_network_id original network id * \return p_sdt pointer to the SDT structure */ dvbpsi_sdt_t *dvbpsi_sdt_new(uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next, uint16_t i_network_id); /***************************************************************************** * dvbpsi_sdt_empty/dvbpsi_sdt_delete *****************************************************************************/ /*! * \fn void dvbpsi_sdt_empty(dvbpsi_sdt_t* p_sdt) * \brief Clean a dvbpsi_sdt_t structure. * \param p_sdt pointer to the SDT structure * \return nothing. */ void dvbpsi_sdt_empty(dvbpsi_sdt_t *p_sdt); /*! * \fn dvbpsi_sdt_delete(dvbpsi_sdt_t *p_sdt) * \brief Clean and free a dvbpsi_sdt_t structure. * \param p_sdt pointer to the SDT structure * \return nothing. */ void dvbpsi_sdt_delete(dvbpsi_sdt_t *p_sdt); /***************************************************************************** * dvbpsi_sdt_service_add *****************************************************************************/ /*! * \fn dvbpsi_sdt_service_t* dvbpsi_sdt_service_add(dvbpsi_sdt_t* p_sdt, uint16_t i_service_id, bool b_eit_schedule, bool b_eit_present, uint8_t i_running_status, bool b_free_ca) * \brief Add a service at the end of the SDT. * \param p_sdt pointer to the SDT structure * \param i_service_id Service ID * \param b_eit_schedule EIT Schedule flag * \param b_eit_present EIT Present/Following flag * \param i_running_status Running status * \param b_free_ca Free CA flag * \return a pointer to the added service description. */ dvbpsi_sdt_service_t *dvbpsi_sdt_service_add(dvbpsi_sdt_t* p_sdt, uint16_t i_service_id, bool b_eit_schedule, bool b_eit_present, uint8_t i_running_status, bool b_free_ca); /***************************************************************************** * dvbpsi_sdt_service_descriptor_add *****************************************************************************/ /*! * \fn dvbpsi_descriptor_t *dvbpsi_sdt_service_descriptor_add( dvbpsi_sdt_service_t *p_service, uint8_t i_tag, uint8_t i_length, uint8_t *p_data) * \brief Add a descriptor in the SDT service. * \param p_service pointer to the service 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_sdt_service_descriptor_add( dvbpsi_sdt_service_t *p_service, uint8_t i_tag, uint8_t i_length, uint8_t *p_data); /***************************************************************************** * dvbpsi_sdt_sections_generate ***************************************************************************** * Generate SDT sections based on the dvbpsi_sdt_t structure. *****************************************************************************/ /*! * \fn dvbpsi_psi_section_t* dvbpsi_sdt_sections_generate(dvbpsi_t *p_dvbpsi, dvbpsi_sdt_t * p_sdt) * \brief SDT generator * \param p_dvbpsi handle to dvbpsi with attached decoder * \param p_sdt SDT structure * \return a pointer to the list of generated PSI sections. * * Generate SDT sections based on the dvbpsi_sdt_t structure. */ dvbpsi_psi_section_t *dvbpsi_sdt_sections_generate(dvbpsi_t *p_dvbpsi, dvbpsi_sdt_t * p_sdt); #ifdef __cplusplus }; #endif #else #error "Multiple inclusions of sdt.h" #endif