////////////////////////////////////////////////////////////// /// /// /// si_tables.h: definitions for data structures of the /// /// incoming SI data stream /// /// /// ////////////////////////////////////////////////////////////// // $Revision: 1.4 $ // $Date: 2003/04/12 11:27:31 $ // $Author: hakenes $ // // (C) 2001-03 Rolf Hakenes , under the // GNU GPL with contribution of Oleg Assovski, // www.satmania.com // // libsi is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2, or (at your option) // any later version. // // libsi 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 General Public License for more details. // // You may have received a copy of the GNU General Public License // along with libsi; see the file COPYING. If not, write to the // Free Software Foundation, Inc., 59 Temple Place - Suite 330, // Boston, MA 02111-1307, USA. #define HILO(x) (x##_hi << 8 | x##_lo) #define MjdToEpochTime(x) (((x##_hi << 8 | x##_lo)-40587)*86400) #define BcdTimeToSeconds(x) ((3600 * ((10*((x##_h & 0xF0)>>4)) + (x##_h & 0xF))) + \ (60 * ((10*((x##_m & 0xF0)>>4)) + (x##_m & 0xF))) + \ ((10*((x##_s & 0xF0)>>4)) + (x##_s & 0xF))) #define BcdTimeToMinutes(x) ((60 * ((10*((x##_h & 0xF0)>>4)) + (x##_h & 0xF))) + \ (((10*((x##_m & 0xF0)>>4)) + (x##_m & 0xF)))) #define BcdCharToInt(x) (10*((x & 0xF0)>>4) + (x & 0xF)) #define CheckBcdChar(x) ((((x & 0xF0)>>4) <= 9) && \ ((x & 0x0F) <= 9)) #define CheckBcdSignedChar(x) ((((x & 0xF0)>>4) >= 0) && (((x & 0xF0)>>4) <= 9) && \ ((x & 0x0F) >= 0) && ((x & 0x0F) <= 9)) #define TableHasMoreSections(x) (((pat_t *)(x))->last_section_number > ((pat_t *)(x))->section_number) #define GetTableId(x) ((pat_t *)(x))->table_id #define GetSectionNumber(x) ((pat_t *)(x))->section_number #define GetLastSectionNumber(x) ((pat_t *)(x))->last_section_number #define GetServiceId(x) (((eit_t *)(x))->service_id_hi << 8) | ((eit_t *)(x))->service_id_lo #define GetSegmentLastSectionNumber(x) ((eit_t *)(x))->segment_last_section_number #define GetLastTableId(x) ((eit_t *)(x))->segment_last_table_id #define GetSectionLength(x) HILO(((pat_t *)(x))->section_length) /* * * ETSI ISO/IEC 13818-1 specifies SI which is referred to as PSI. The PSI * data provides information to enable automatic configuration of the * receiver to demultiplex and decode the various streams of programs * within the multiplex. The PSI data is structured as four types of table. * The tables are transmitted in sections. * * 1) Program Association Table (PAT): * * - for each service in the multiplex, the PAT indicates the location * (the Packet Identifier (PID) values of the Transport Stream (TS) * packets) of the corresponding Program Map Table (PMT). * It also gives the location of the Network Information Table (NIT). * */ #define PAT_LEN 8 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char dummy :1; // has to be 0 u_char :2; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :2; u_char dummy :1; // has to be 0 u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; } pat_t; #define PAT_PROG_LEN 4 typedef struct { u_char program_number_hi :8; u_char program_number_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :3; u_char network_pid_hi :5; #else u_char network_pid_hi :5; u_char :3; #endif u_char network_pid_lo :8; /* or program_map_pid (if prog_num=0)*/ } pat_prog_t; /* * * 2) Conditional Access Table (CAT): * * - the CAT provides information on the CA systems used in the * multiplex; the information is private and dependent on the CA * system, but includes the location of the EMM stream, when * applicable. * */ #define CAT_LEN 8 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char dummy :1; // has to be 0 u_char :2; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :2; u_char dummy :1; // has to be 0 u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char reserved_1 :8; u_char reserved_2 :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; } cat_t; /* * * 3) Program Map Table (PMT): * * - the PMT identifies and indicates the locations of the streams that * make up each service, and the location of the Program Clock * Reference fields for a service. * */ #define PMT_LEN 12 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char dummy :1; // has to be 0 u_char :2; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :2; u_char dummy :1; // has to be 0 u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char program_number_hi :8; u_char program_number_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; #if BYTE_ORDER == BIG_ENDIAN u_char :3; u_char PCR_PID_hi :5; #else u_char PCR_PID_hi :5; u_char :3; #endif u_char PCR_PID_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char program_info_length_hi :4; #else u_char program_info_length_hi :4; u_char :4; #endif u_char program_info_length_lo :8; //descriptors } pmt_t; #define PMT_INFO_LEN 5 typedef struct { u_char stream_type :8; #if BYTE_ORDER == BIG_ENDIAN u_char :3; u_char elementary_PID_hi :5; #else u_char elementary_PID_hi :5; u_char :3; #endif u_char elementary_PID_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char ES_info_length_hi :4; #else u_char ES_info_length_hi :4; u_char :4; #endif u_char ES_info_length_lo :8; // descriptors } pmt_info_t; /* * * 4) Network Information Table (NIT): * * - the NIT is intended to provide information about the physical * network. The syntax and semantics of the NIT are defined in * ETSI EN 300 468. * */ #define NIT_LEN 10 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char :3; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :3; u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char network_id_hi :8; u_char network_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char network_descriptor_length_hi :4; #else u_char network_descriptor_length_hi :4; u_char :4; #endif u_char network_descriptor_length_lo :8; /* descriptors */ } nit_t; #define SIZE_NIT_MID 2 typedef struct { // after descriptors #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char transport_stream_loop_length_hi :4; #else u_char transport_stream_loop_length_hi :4; u_char :4; #endif u_char transport_stream_loop_length_lo :8; } nit_mid_t; #define SIZE_NIT_END 4 struct nit_end_struct { long CRC; }; #define NIT_TS_LEN 6 typedef struct { u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; u_char original_network_id_hi :8; u_char original_network_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char transport_descriptors_length_hi :4; #else u_char transport_descriptors_length_hi :4; u_char :4; #endif u_char transport_descriptors_length_lo :8; /* descriptors */ } nit_ts_t; /* * * In addition to the PSI, data is needed to provide identification of * services and events for the user. In contrast with the PAT, CAT, and * PMT of the PSI, which give information only for the multiplex in which * they are contained (the actual multiplex), the additional information * defined within the present document can also provide information on * services and events carried by different multiplexes, and even on other * networks. This data is structured as nine tables: * * 1) Bouquet Association Table (BAT): * * - the BAT provides information regarding bouquets. As well as giving * the name of the bouquet, it provides a list of services for each * bouquet. * */ /* SEE NIT (It has the same structure but has different allowed descriptors) */ /* * * 2) Service Description Table (SDT): * * - the SDT contains data describing the services in the system e.g. * names of services, the service provider, etc. * */ #define SDT_LEN 11 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char :3; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :3; u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; u_char original_network_id_hi :8; u_char original_network_id_lo :8; u_char :8; } sdt_t; #define GetSDTTransportStreamId(x) (HILO(((sdt_t *) x)->transport_stream_id)) #define GetSDTOriginalNetworkId(x) (HILO(((sdt_t *) x)->original_network_id)) #define SDT_DESCR_LEN 5 typedef struct { u_char service_id_hi :8; u_char service_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :6; u_char eit_schedule_flag :1; u_char eit_present_following_flag :1; u_char running_status :3; u_char free_ca_mode :1; u_char descriptors_loop_length_hi :4; #else u_char eit_present_following_flag :1; u_char eit_schedule_flag :1; u_char :6; u_char descriptors_loop_length_hi :4; u_char free_ca_mode :1; u_char running_status :3; #endif u_char descriptors_loop_length_lo :8; } sdt_descr_t; /* * * 3) Event Information Table (EIT): * * - the EIT contains data concerning events or programmes such as event * name, start time, duration, etc.; - the use of different descriptors * allows the transmission of different kinds of event information e.g. * for different service types. * */ #define EIT_LEN 14 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char :3; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :3; u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char service_id_hi :8; u_char service_id_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char :2; u_char version_number :5; u_char current_next_indicator :1; #else u_char current_next_indicator :1; u_char version_number :5; u_char :2; #endif u_char section_number :8; u_char last_section_number :8; u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; u_char original_network_id_hi :8; u_char original_network_id_lo :8; u_char segment_last_section_number :8; u_char segment_last_table_id :8; } eit_t; #define EIT_EVENT_LEN 12 typedef struct { u_char event_id_hi :8; u_char event_id_lo :8; u_char mjd_hi :8; u_char mjd_lo :8; u_char start_time_h :8; u_char start_time_m :8; u_char start_time_s :8; u_char duration_h :8; u_char duration_m :8; u_char duration_s :8; #if BYTE_ORDER == BIG_ENDIAN u_char running_status :3; u_char free_ca_mode :1; u_char descriptors_loop_length_hi :4; #else u_char descriptors_loop_length_hi :4; u_char free_ca_mode :1; u_char running_status :3; #endif u_char descriptors_loop_length_lo :8; } eit_event_t; /* * * 4) Running Status Table (RST): * * - the RST gives the status of an event (running/not running). The RST * updates this information and allows timely automatic switching to * events. * */ /* TO BE DONE */ /* * * 5) Time and Date Table (TDT): * * - the TDT gives information relating to the present time and date. * This information is given in a separate table due to the frequent * updating of this information. * */ #define TDT_LEN 8 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char :3; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :3; u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char utc_mjd_hi :8; u_char utc_mjd_lo :8; u_char utc_time_h :8; u_char utc_time_m :8; u_char utc_time_s :8; } tdt_t; /* * * 6) Time Offset Table (TOT): * * - the TOT gives information relating to the present time and date and * local time offset. This information is given in a separate table due * to the frequent updating of the time information. * */ #define TOT_LEN 10 typedef struct { u_char table_id :8; #if BYTE_ORDER == BIG_ENDIAN u_char section_syntax_indicator :1; u_char :3; u_char section_length_hi :4; #else u_char section_length_hi :4; u_char :3; u_char section_syntax_indicator :1; #endif u_char section_length_lo :8; u_char utc_mjd_hi :8; u_char utc_mjd_lo :8; u_char utc_time_h :8; u_char utc_time_m :8; u_char utc_time_s :8; #if BYTE_ORDER == BIG_ENDIAN u_char :4; u_char descriptors_loop_length_hi :4; #else u_char descriptors_loop_length_hi :4; u_char :4; #endif u_char descriptors_loop_length_lo :8; } tot_t; /* * * 7) Stuffing Table (ST): * * - the ST is used to invalidate existing sections, for example at * delivery system boundaries. * */ /* TO BE DONE */ /* * * 8) Selection Information Table (SIT): * * - the SIT is used only in "partial" (i.e. recorded) bitstreams. It * carries a summary of the SI information required to describe the * streams in the partial bitstream. * */ /* TO BE DONE */ /* * * 9) Discontinuity Information Table (DIT): * * - the DIT is used only in "partial" (i.e. recorded) bitstreams. * It is inserted where the SI information in the partial bitstream may * be discontinuous. Where applicable the use of descriptors allows a * flexible approach to the organization of the tables and allows for * future compatible extensions. * */ /* TO BE DONE */ /* * * The following describes the different descriptors that can be used within * the SI. * * The following semantics apply to all the descriptors defined in this * subclause: * * descriptor_tag: The descriptor tag is an 8-bit field which identifies * each descriptor. Those values with MPEG-2 normative * meaning are described in ISO/IEC 13818-1. The values of * descriptor_tag are defined in 'libsi.h' * descriptor_length: The descriptor length is an 8-bit field specifying the * total number of bytes of the data portion of the * descriptor following the byte defining the value of * this field. * */ #define DESCR_GEN_LEN 2 typedef struct descr_gen_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_gen_t; #define CastGenericDescriptor(x) ((descr_gen_t *)(x)) #define GetDescriptorTag(x) (((descr_gen_t *) x)->descriptor_tag) #define GetDescriptorLength(x) (((descr_gen_t *) x)->descriptor_length+DESCR_GEN_LEN) /* 0x09 ca_descriptor */ #define DESCR_CA_LEN 6 typedef struct descr_ca_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char CA_type_hi :8; u_char CA_type_lo :8; #if BYTE_ORDER == BIG_ENDIAN u_char reserved :3; u_char CA_PID_hi :5; #else u_char CA_PID_hi :5; u_char reserved :3; #endif u_char CA_PID_lo :8; } descr_ca_t; #define CastCaDescriptor(x) ((descr_ca_t *)(x)) /* 0x0A iso_639_language_descriptor */ #define DESCR_ISO_639_LANGUAGE_LEN 5 typedef struct descr_iso_639_language_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; } descr_iso_639_language_t; #define CastIso639LanguageDescriptor(x) ((descr_iso_639_language_t *)(x)) /* 0x40 network_name_descriptor */ #define DESCR_NETWORK_NAME_LEN 2 typedef struct descr_network_name_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_network_name_t; #define CastNetworkNameDescriptor(x) ((descr_network_name_t *)(x)) /* 0x41 service_list_descriptor */ #define DESCR_SERVICE_LIST_LEN 2 typedef struct descr_service_list_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_service_list_t; #define CastServiceListDescriptor(x) ((descr_service_list_t *)(x)) #define DESCR_SERVICE_LIST_LOOP_LEN 3 typedef struct descr_service_list_loop_struct { u_char service_id_hi :8; u_char service_id_lo :8; u_char service_type :8; } descr_service_list_loop_t; #define CastServiceListDescriptorLoop(x) ((descr_service_list_loop_t *)(x)) /* 0x42 stuffing_descriptor */ #define DESCR_STUFFING_LEN XX typedef struct descr_stuffing_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_stuffing_t; #define CastStuffingDescriptor(x) ((descr_stuffing_t *)(x)) /* 0x43 satellite_delivery_system_descriptor */ #define DESCR_SATELLITE_DELIVERY_SYSTEM_LEN 13 typedef struct descr_satellite_delivery_system_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char frequency1 :8; u_char frequency2 :8; u_char frequency3 :8; u_char frequency4 :8; u_char orbital_position1 :8; u_char orbital_position2 :8; #if BYTE_ORDER == BIG_ENDIAN u_char west_east_flag :1; u_char polarization :2; u_char modulation :5; #else u_char modulation :5; u_char polarization :2; u_char west_east_flag :1; #endif u_char symbol_rate1 :8; u_char symbol_rate2 :8; u_char symbol_rate3 :8; #if BYTE_ORDER == BIG_ENDIAN u_char symbol_rate4 :4; u_char fec_inner :4; #else u_char fec_inner :4; u_char symbol_rate4 :4; #endif } descr_satellite_delivery_system_t; #define CastSatelliteDeliverySystemDescriptor(x) ((descr_satellite_delivery_system_t *)(x)) /* 0x44 cable_delivery_system_descriptor */ #define DESCR_CABLE_DELIVERY_SYSTEM_LEN 13 typedef struct descr_cable_delivery_system_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char frequency1 :8; u_char frequency2 :8; u_char frequency3 :8; u_char frequency4 :8; u_char reserved1 :8; #if BYTE_ORDER == BIG_ENDIAN u_char reserved2 :4; u_char fec_outer :4; #else u_char fec_outer :4; u_char reserved2 :4; #endif u_char modulation :8; u_char symbol_rate1 :8; u_char symbol_rate2 :8; u_char symbol_rate3 :8; #if BYTE_ORDER == BIG_ENDIAN u_char symbol_rate4 :4; u_char fec_inner :4; #else u_char fec_inner :4; u_char symbol_rate4 :4; #endif } descr_cable_delivery_system_t; #define CastCableDeliverySystemDescriptor(x) ((descr_cable_delivery_system_t *)(x)) /* 0x45 vbi_data_descriptor */ #define DESCR_VBI_DATA_LEN XX typedef struct descr_vbi_data_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_vbi_data_t; #define CastVbiDataDescriptor(x) ((descr_vbi_data_t *)(x)) /* 0x46 vbi_teletext_descriptor */ #define DESCR_VBI_TELETEXT_LEN XX typedef struct descr_vbi_teletext_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_vbi_teletext_t; #define CastVbiDescriptor(x) ((descr_vbi_teletext_t *)(x)) /* 0x47 bouquet_name_descriptor */ #define DESCR_BOUQUET_NAME_LEN 2 typedef struct descr_bouquet_name_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_bouquet_name_t; #define CastBouquetNameDescriptor(x) ((descr_bouquet_name_t *)(x)) /* 0x48 service_descriptor */ #define DESCR_SERVICE_LEN 4 typedef struct descr_service_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char service_type :8; u_char provider_name_length :8; } descr_service_t; #define CastServiceDescriptor(x) ((descr_service_t *)(x)) /* 0x49 country_availability_descriptor */ #define DESCR_COUNTRY_AVAILABILITY_LEN 3 typedef struct descr_country_availability_struct { u_char descriptor_tag :8; u_char descriptor_length :8; #if BYTE_ORDER == BIG_ENDIAN u_char country_availability_flag :1; u_char reserved :7; #else u_char reserved :7; u_char country_availability_flag :1; #endif } descr_country_availability_t; #define CastCountryAvailabilityDescriptor(x) ((descr_country_availability_t *)(x)) /* 0x4A linkage_descriptor */ #define DESCR_LINKAGE_LEN 9 typedef struct descr_linkage_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; u_char original_network_id_hi :8; u_char original_network_id_lo :8; u_char service_id_hi :8; u_char service_id_lo :8; u_char linkage_type :8; } descr_linkage_t; #define CastLinkageDescriptor(x) ((descr_linkage_t *)(x)) /* 0x4B nvod_reference_descriptor */ #define DESCR_NVOD_REFERENCE_LEN 2 typedef struct descr_nvod_reference_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_nvod_reference_t; #define CastNvodReferenceDescriptor(x) ((descr_nvod_reference_t *)(x)) #define ITEM_NVOD_REFERENCE_LEN 6 typedef struct item_nvod_reference_struct { u_char transport_stream_id_hi :8; u_char transport_stream_id_lo :8; u_char original_network_id_hi :8; u_char original_network_id_lo :8; u_char service_id_hi :8; u_char service_id_lo :8; } item_nvod_reference_t; #define CastNvodReferenceItem(x) ((item_nvod_reference_t *)(x)) /* 0x4C time_shifted_service_descriptor */ #define DESCR_TIME_SHIFTED_SERVICE_LEN 4 typedef struct descr_time_shifted_service_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char reference_service_id_hi :8; u_char reference_service_id_lo :8; } descr_time_shifted_service_t; #define CastTimeShiftedServiceDescriptor(x) ((descr_time_shifted_service_t *)(x)) /* 0x4D short_event_descriptor */ #define DESCR_SHORT_EVENT_LEN 6 typedef struct descr_short_event_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; u_char event_name_length :8; } descr_short_event_t; #define CastShortEventDescriptor(x) ((descr_short_event_t *)(x)) /* 0x4E extended_event_descriptor */ #define DESCR_EXTENDED_EVENT_LEN 7 typedef struct descr_extended_event_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ #if BYTE_ORDER == BIG_ENDIAN u_char descriptor_number :4; u_char last_descriptor_number :4; #else u_char last_descriptor_number :4; u_char descriptor_number :4; #endif u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; u_char length_of_items :8; } descr_extended_event_t; #define CastExtendedEventDescriptor(x) ((descr_extended_event_t *)(x)) #define ITEM_EXTENDED_EVENT_LEN 1 typedef struct item_extended_event_struct { u_char item_description_length :8; } item_extended_event_t; #define CastExtendedEventItem(x) ((item_extended_event_t *)(x)) /* 0x4F time_shifted_event_descriptor */ #define DESCR_TIME_SHIFTED_EVENT_LEN 6 typedef struct descr_time_shifted_event_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char reference_service_id_hi :8; u_char reference_service_id_lo :8; u_char reference_event_id_hi :8; u_char reference_event_id_lo :8; } descr_time_shifted_event_t; #define CastTimeShiftedEventDescriptor(x) ((descr_time_shifted_event_t *)(x)) /* 0x50 component_descriptor */ #define DESCR_COMPONENT_LEN 8 typedef struct descr_component_struct { u_char descriptor_tag :8; u_char descriptor_length :8; #if BYTE_ORDER == BIG_ENDIAN u_char reserved :4; u_char stream_content :4; #else u_char stream_content :4; u_char reserved :4; #endif u_char component_type :8; u_char component_tag :8; u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; } descr_component_t; #define CastComponentDescriptor(x) ((descr_component_t *)(x)) /* 0x51 mosaic_descriptor */ #define DESCR_MOSAIC_LEN XX typedef struct descr_mosaic_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_mosaic_t; #define CastMosaicDescriptor(x) ((descr_mosaic_t *)(x)) /* 0x52 stream_identifier_descriptor */ #define DESCR_STREAM_IDENTIFIER_LEN 3 typedef struct descr_stream_identifier_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char component_tag :8; } descr_stream_identifier_t; #define CastStreamIdentifierDescriptor(x) ((descr_stream_identifier_t *)(x)) /* 0x53 ca_identifier_descriptor */ #define DESCR_CA_IDENTIFIER_LEN 2 typedef struct descr_ca_identifier_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_ca_identifier_t; #define CastCaIdentifierDescriptor(x) ((descr_ca_identifier_t *)(x)) /* 0x54 content_descriptor */ #define DESCR_CONTENT_LEN 2 typedef struct descr_content_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_content_t; #define CastContentDescriptor(x) ((descr_content_t *)(x)) typedef struct nibble_content_struct { #if BYTE_ORDER == BIG_ENDIAN u_char content_nibble_level_1 :4; u_char content_nibble_level_2 :4; u_char user_nibble_1 :4; u_char user_nibble_2 :4; #else u_char user_nibble_2 :4; u_char user_nibble_1 :4; u_char content_nibble_level_2 :4; u_char content_nibble_level_1 :4; #endif } nibble_content_t; #define CastContentNibble(x) ((nibble_content_t *)(x)) /* 0x55 parental_rating_descriptor */ #define DESCR_PARENTAL_RATING_LEN 2 typedef struct descr_parental_rating_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_parental_rating_t; #define CastParentalRatingDescriptor(x) ((descr_parental_rating_t *)(x)) #define PARENTAL_RATING_LEN 4 typedef struct parental_rating_struct { u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; u_char rating :8; } parental_rating_t; #define CastParentalRating(x) ((parental_rating_t *)(x)) /* 0x56 teletext_descriptor */ #define DESCR_TELETEXT_LEN 2 typedef struct descr_teletext_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_teletext_t; #define CastTeletextDescriptor(x) ((descr_teletext_t *)(x)) #define ITEM_TELETEXT_LEN 5 typedef struct item_teletext_struct { u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; #if BYTE_ORDER == BIG_ENDIAN u_char type :5; u_char magazine_number :3; #else u_char magazine_number :3; u_char type :5; #endif u_char page_number :8; } item_teletext_t; #define CastTeletextItem(x) ((item_teletext_t *)(x)) /* 0x57 telephone_descriptor */ #define DESCR_TELEPHONE_LEN XX typedef struct descr_telephone_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_telephone_t; #define CastTelephoneDescriptor(x) ((descr_telephone_t *)(x)) /* 0x58 local_time_offset_descriptor */ #define DESCR_LOCAL_TIME_OFFSET_LEN 2 typedef struct descr_local_time_offset_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_local_time_offset_t; #define CastLocalTimeOffsetDescriptor(x) ((descr_local_time_offset_t *)(x)) #define LOCAL_TIME_OFFSET_ENTRY_LEN 15 typedef struct local_time_offset_entry_struct { u_char country_code1 :8; u_char country_code2 :8; u_char country_code3 :8; #if BYTE_ORDER == BIG_ENDIAN u_char country_region_id :6; u_char :1; u_char local_time_offset_polarity :1; #else u_char local_time_offset_polarity :1; u_char :1; u_char country_region_id :6; #endif u_char local_time_offset_h :8; u_char local_time_offset_m :8; u_char time_of_change_mjd_hi :8; u_char time_of_change_mjd_lo :8; u_char time_of_change_time_h :8; u_char time_of_change_time_m :8; u_char time_of_change_time_s :8; u_char next_time_offset_h :8; u_char next_time_offset_m :8; } local_time_offset_entry_t ; #define CastLocalTimeOffsetEntry(x) ((local_time_offset_entry_t *)(x)) /* 0x59 subtitling_descriptor */ #define DESCR_SUBTITLING_LEN 2 typedef struct descr_subtitling_struct { u_char descriptor_tag :8; u_char descriptor_length :8; } descr_subtitling_t; #define CastSubtitlingDescriptor(x) ((descr_subtitling_t *)(x)) #define ITEM_SUBTITLING_LEN 8 typedef struct item_subtitling_struct { u_char lang_code1 :8; u_char lang_code2 :8; u_char lang_code3 :8; u_char subtitling_type :8; u_char composition_page_id_hi :8; u_char composition_page_id_lo :8; u_char ancillary_page_id_hi :8; u_char ancillary_page_id_lo :8; } item_subtitling_t; #define CastSubtitlingItem(x) ((item_subtitling_t *)(x)) /* 0x5A terrestrial_delivery_system_descriptor */ #define DESCR_TERRESTRIAL_DELIVERY_SYSTEM_LEN XX typedef struct descr_terrestrial_delivery_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char frequency1 :8; u_char frequency2 :8; u_char frequency3 :8; u_char frequency4 :8; #if BYTE_ORDER == BIG_ENDIAN u_char bandwidth :3; u_char reserved1 :5; #else u_char reserved1 :5; u_char bandwidth :3; #endif #if BYTE_ORDER == BIG_ENDIAN u_char constellation :2; u_char hierarchy :3; u_char code_rate_HP :3; #else u_char code_rate_HP :3; u_char hierarchy :3; u_char constellation :2; #endif #if BYTE_ORDER == BIG_ENDIAN u_char code_rate_LP :3; u_char guard_interval :2; u_char transmission_mode :2; u_char other_frequency_flag :1; #else u_char other_frequency_flag :1; u_char transmission_mode :2; u_char guard_interval :2; u_char code_rate_LP :3; #endif u_char reserver2 :8; u_char reserver3 :8; u_char reserver4 :8; u_char reserver5 :8; } descr_terrestrial_delivery_system_t; #define CastTerrestrialDeliverySystemDescriptor(x) ((descr_terrestrial_delivery_system_t *)(x)) /* 0x5B multilingual_network_name_descriptor */ #define DESCR_MULTILINGUAL_NETWORK_NAME_LEN XX typedef struct descr_multilingual_network_name_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_multilingual_network_name_t; #define CastMultilingualNetworkNameDescriptor(x) ((descr_multilingual_network_name_t *)(x)) /* 0x5C multilingual_bouquet_name_descriptor */ #define DESCR_MULTILINGUAL_BOUQUET_NAME_LEN XX typedef struct descr_multilingual_bouquet_name_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_multilingual_bouquet_name_t; #define CastMultilingualBouquetNameDescriptor(x) ((descr_multilingual_bouquet_name_t *)(x)) /* 0x5D multilingual_service_name_descriptor */ #define DESCR_MULTILINGUAL_SERVICE_NAME_LEN XX typedef struct descr_multilingual_service_name_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_multilingual_service_name_t; #define CastMultilingualServiceNameDescriptor(x) ((descr_multilingual_service_name_t *)(x)) /* 0x5E multilingual_component_descriptor */ #define DESCR_MULTILINGUAL_COMPONENT_LEN XX typedef struct descr_multilingual_component_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_multilingual_component_t; #define CastMultilingualComponentDescriptor(x) ((descr_multilingual_component_t *)(x)) /* 0x5F private_data_specifier_descriptor */ #define DESCR_PRIVATE_DATA_SPECIFIER_LEN XX typedef struct descr_private_data_specifier_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_private_data_specifier_t; #define CastPrivateDataSpecifierDescriptor(x) ((descr_private_data_specifier_t *)(x)) /* 0x60 service_move_descriptor */ #define DESCR_SERVICE_MOVE_LEN XX typedef struct descr_service_move_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_service_move_t; #define CastServiceMoveDescriptor(x) ((descr_service_move_t *)(x)) /* 0x61 short_smoothing_buffer_descriptor */ #define DESCR_SHORT_SMOOTHING_BUFFER_LEN XX typedef struct descr_short_smoothing_buffer_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_short_smoothing_buffer_t; #define CastShortSmoothingBufferDescriptor(x) ((descr_short_smoothing_buffer_t *)(x)) /* 0x62 frequency_list_descriptor */ #define DESCR_FREQUENCY_LIST_LEN XX typedef struct descr_frequency_list_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_frequency_list_t; #define CastFrequencyListDescriptor(x) ((descr_frequency_list_t *)(x)) /* 0x63 partial_transport_stream_descriptor */ #define DESCR_PARTIAL_TRANSPORT_STREAM_LEN XX typedef struct descr_partial_transport_stream_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_partial_transport_stream_t; #define CastPartialDescriptor(x) ((descr_partial_transport_stream_t *)(x)) /* 0x64 data_broadcast_descriptor */ #define DESCR_DATA_BROADCAST_LEN XX typedef struct descr_data_broadcast_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_data_broadcast_t; #define CastDataBroadcastDescriptor(x) ((descr_data_broadcast_t *)(x)) /* 0x65 ca_system_descriptor */ #define DESCR_CA_SYSTEM_LEN XX typedef struct descr_ca_system_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_ca_system_t; #define CastCaSystemDescriptor(x) ((descr_ca_system_t *)(x)) /* 0x66 data_broadcast_id_descriptor */ #define DESCR_DATA_BROADCAST_ID_LEN XX typedef struct descr_data_broadcast_id_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_data_broadcast_id_t; #define CastDataBroadcastIdDescriptor(x) ((descr_data_broadcast_id_t *)(x)) /* 0x67 transport_stream_descriptor */ #define DESCR_TRANSPORT_STREAM_LEN XX typedef struct descr_transport_stream_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_transport_stream_t; #define CastTransportStreamDescriptor(x) ((descr_transport_stream_t *)(x)) /* 0x68 dsng_descriptor */ #define DESCR_DSNG_LEN XX typedef struct descr_dsng_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_dsng_t; #define CastDsngDescriptor(x) ((descr_dsng_t *)(x)) /* 0x69 pdc_descriptor */ #define DESCR_PDC_LEN XX typedef struct descr_pdc_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_pdc_t; #define CastPdcDescriptor(x) ((descr_pdc_t *)(x)) /* 0x6A ac3_descriptor */ #define DESCR_AC3_LEN 3 typedef struct descr_ac3_struct { u_char descriptor_tag :8; u_char descriptor_length :8; #if BYTE_ORDER == BIG_ENDIAN u_char ac3_type_flag :1; u_char bsid_flag :1; u_char mainid_flag :1; u_char asvc_flag :1; u_char reserved :4; #else u_char reserved :4; u_char asvc_flag :1; u_char mainid_flag :1; u_char bsid_flag :1; u_char ac3_type_flag :1; #endif u_char ac3_type :8; u_char bsid :8; u_char mainid :8; u_char asvc :8; } descr_ac3_t; #define CastAc3Descriptor(x) ((descr_ac3_t *)(x)) /* 0x6B ancillary_data_descriptor */ #define DESCR_ANCILLARY_DATA_LEN 3 typedef struct descr_ancillary_data_struct { u_char descriptor_tag :8; u_char descriptor_length :8; u_char ancillary_data_identifier :8; } descr_ancillary_data_t; #define CastAncillaryDataDescriptor(x) ((descr_ancillary_data_t *)(x)) /* 0x6C cell_list_descriptor */ #define DESCR_CELL_LIST_LEN XX typedef struct descr_cell_list_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_cell_list_t; #define CastCellListDescriptor(x) ((descr_cell_list_t *)(x)) /* 0x6D cell_frequency_link_descriptor */ #define DESCR_CELL_FREQUENCY_LINK_LEN XX typedef struct descr_cell_frequency_link_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_cell_frequency_link_t; #define CastCellFrequencyLinkDescriptor(x) ((descr_cell_frequency_link_t *)(x)) /* 0x6E announcement_support_descriptor */ #define DESCR_ANNOUNCEMENT_SUPPORT_LEN XX typedef struct descr_announcement_support_struct { u_char descriptor_tag :8; u_char descriptor_length :8; /* TBD */ } descr_announcement_support_t; #define CastAnnouncementSupportDescriptor(x) ((descr_announcement_support_t *)(x))