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si_types.h
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/*
* Simple MPEG/DVB parser to achieve network/service information without initial tuning data
*
* Copyright (C) 2006 - 2014 Winfried Koehler
* Copyright (C) 2017 - 2020 mighty-p
*
* This program 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
* of the License, or (at your option) any later version.
*
* This program 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 should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* The project's page is https://github.com/mighty-p/t2scan
*/
#ifndef __SI_TYPES_H
#define __SI_TYPES_H
#include <stdint.h>
#include "descriptors.h"
#include "tools.h"
/*******************************************************************************
/* section buffer
******************************************************************************/
#define SECTION_FLAG_DEFAULT (1U) << 0
#define SECTION_FLAG_INITIAL (1U) << 1
#define SECTION_FLAG_FREE (1U) << 2
#define SECTION_BUF_SIZE 4096
typedef struct section_buf {
/*----------------------------*/
void * prev;
void * next;
uint32_t index;
/*----------------------------*/
const char * dmx_devname;
unsigned int run_once : 1;
unsigned int segmented : 1; // segmented by table_id_ext
int fd;
int pid;
int table_id;
int table_id_ext;
int section_version_number;
uint8_t section_done[32];
int sectionfilter_done;
unsigned char buf[SECTION_BUF_SIZE];
uint32_t flags;
time_t timeout;
time_t start_time;
time_t running_time;
struct section_buf * next_seg; // this is used to handle segmented tables (like NIT-other)
pList garbage;
} section_t, * p_section_t;
/*******************************************************************************
/* service type.
******************************************************************************/
#define AUDIO_CHAN_MAX (32)
#define AC3_CHAN_MAX (32)
#define CA_SYSTEM_ID_MAX (16)
#define SUBTITLES_MAX (32)
struct transponder;
struct service {
/*----------------------------*/
void * prev;
void * next;
uint32_t index;
/*----------------------------*/
struct transponder * transponder;
uint16_t transport_stream_id;
uint16_t service_id;
char * provider_name;
char * provider_short_name;
char * service_name;
char * service_short_name;
uint16_t pmt_pid;
uint16_t pcr_pid;
uint16_t video_pid;
uint8_t video_stream_type;
uint16_t audio_pid[AUDIO_CHAN_MAX];
uint8_t audio_stream_type[AUDIO_CHAN_MAX];
char audio_lang[AUDIO_CHAN_MAX][4];
int audio_num;
uint16_t ca_id[CA_SYSTEM_ID_MAX];
int ca_num;
uint16_t teletext_pid;
uint16_t subtitling_pid[SUBTITLES_MAX];
char subtitling_lang[SUBTITLES_MAX][4];
uint8_t subtitling_type[SUBTITLES_MAX];
uint16_t composition_page_id[SUBTITLES_MAX];
uint16_t ancillary_page_id[SUBTITLES_MAX];
int subtitling_num;
uint16_t ac3_pid[AC3_CHAN_MAX];
uint8_t ac3_stream_type[AC3_CHAN_MAX];
char ac3_lang[AC3_CHAN_MAX][4];
int ac3_num;
unsigned int type : 8;
bool scrambled;
bool visible_service;
uint32_t logical_channel_number;
uint8_t running;
void * priv;
};
/*******************************************************************************
/* transponder type.
******************************************************************************/
struct transposer {
uint8_t cell_id_extension;
uint32_t transposer_frequency;
};
struct cell {
/*----------------------------*/
void * prev;
void * next;
uint32_t index;
/*----------------------------*/
uint16_t cell_id;
// if TFS: up to 6 RF freqs.
int num_center_frequencies;
uint32_t center_frequencies[6];
int num_transposers;
struct transposer transposers[16];
};
struct transponder {
/*----------------------------*/
void * prev;
void * next;
uint32_t index;
pList services;
cList _services;
pList cells; /* DVB-T/T2 */
cList _cells;
/*----------------------------- starting from here copied by 'copy_fe_params' ------------------------------------------*/
/* NOTE: 'frequency' needs to be first item - dont touch! */
uint32_t frequency; /* unit Hz, except satellite: kHz 1..4 */
fe_spectral_inversion_t inversion :8; /* 5 */
uint32_t symbolrate; /* symbols per second 6..9 */
uint32_t bandwidth; /* Hz 10..13*/
uint16_t orbital_position; /* 0x0000-0x1800 14..15*/
uint8_t input_stream_identifier; /* ISI 8bit. 16 */
fe_delivery_system_t delsys :6; /* 0..18 -> 5 -> 6 (63) 17 */
fe_polarization_t polarization :2; /* H,V,L,R 0..3 -> 2 -> 2 (3) 17 */
fe_modulation_t modulation :6; /* 0..13 -> 4 -> 6 (63) 18 */
fe_pilot_t pilot :2; /* pilot, on, off, auto 0..2 -> 2 -> 2 (3) 18 */
fe_code_rate_t coderate :7; /* code rate 0..12 -> 4 -> 7 (127) 19 */
fe_code_rate_t coderate_LP :7; /* code rate low priority stream 0..12 -> 4 -> 7 (127) 19..20*/
fe_guard_interval_t guard :7; /* 0..10 -> 4 -> 7 (127) 20..21*/
fe_rolloff_t rolloff :3; /* 0.35, 0.25, 0.20, auto 0..3 -> 2 -> 3 (7) 21 */
fe_transmit_mode_t transmission :7; /* 0..8 -> 4 -> 7 (127) 22 */
fe_west_east_flag_t west_east_flag :1; /* east, west 0..1 -> 1 -> 1 (1) 22 */
fe_hierarchy_t hierarchy :4; /* 0..4 -> 3 -> 4 (15) 23 */
unsigned time_slicing :2; /* only defined in t2scan. 0..2 -> 2 -> 2 (3) 23 */
unsigned scrambling_sequence_index :18;/* not yet in use. 23..25*/
unsigned scrambling_sequence_selector:1; /* on/off 0..1 -> 1 26 */
unsigned multiple_input_stream_flag :1; /* on/off 0..1 -> 1 26 */
fe_frequency_type_t C2_tuning_frequency_type :2; /* 0..2 0..2 -> 2 -> 2 (3) 26 */
fe_ofdm_symbol_duration_t active_OFDM_symbol_duration :2; /* 26 */
fe_alpha_t alpha :2; /* only defined in t2scan 26 */
fe_interleave_t terr_interleaver :2; /* only defined in t2scan 27 */
unsigned priority :1; /* only defined in t2scan 27 */
unsigned mpe_fec :1; /* 27 */
unsigned extended_info :1; /* 27 */
unsigned SISO_MISO :1; /* 1 = multiple input single output 27 */
unsigned locks_with_params :1; /* do we get lock with current tp params? 27 */
unsigned reserved_byte27 :1; /* align to byte. 27 */
unsigned tfs_flag :1; /* 1 if Time-Frequency-Slicing 28 */
unsigned other_frequency_flag :1; /* DVB-T/T2 28 */
unsigned last_tuning_failed :1; /* 28 */
unsigned type :5; /* 3bit + 2bit byte_align 28 */
uint32_t source; /* 29..32*/
uint16_t system_id; /* DVB-C2, DVB-T2 system_id 33..34*/
uint32_t plp_id; /* DVB-C2, DVB-T2 35 */
uint8_t data_slice_id; /* DVB-C2 36 */
/*---------------------------- below is not copied by 'copy_fe_params' -------------------------------------------------*/
uint8_t private_from_here;
/*----------------------------*/
uint16_t network_PID; // which PID contains NIT ? (0x0010..0x1FFE)
uint16_t network_id;
uint16_t original_network_id;
uint16_t transport_stream_id;
/*----------------------------*/
char * network_name;
network_change_t network_change;
double signal_strength;
char * signal_strength_unit;
double signal_quality;
char * signal_quality_unit;
} __attribute__((packed));
/*******************************************************************************
/* satellite channel routing type.
******************************************************************************/
struct scr {
uint16_t user_frequency; // 20140101: DVB-S/S2, satellite channel routing
uint8_t slot; // 50494: 0..7 , 50607: 0..31
uint8_t pos; // 50494: 0..1 , 50607: 0..0xCC
uint16_t pin; // 50494: 0..255, 50607: 0..255
int8_t offset; // 50494: -2..+2, 50607: 0
uint8_t norm; // 50494: 1 , 50607: 2
};
#endif