dvb_desc_sat - Man Page
Structure containing the satellite delivery system descriptor.
Synopsis
#include <desc_sat.h>
Data Fields
uint8_t type
uint8_t length
struct dvb_desc * next
uint32_t frequency
uint16_t orbit
uint8_t modulation_type:2
uint8_t modulation_system:1
uint8_t roll_off:2
uint8_t polarization:2
uint8_t west_east:1
union {
uint32_t bitfield
struct {
uint32_t fec:4
uint32_t symbol_rate:28
}
};
Detailed Description
Structure containing the satellite delivery system descriptor.
- Parameters
type descriptor tag
length descriptor length
next pointer to struct dvb_desc
frequency frequency in kHz
orbit orbital position in degrees (multiplied by 10)
west_east west east flag. 0 = west, 1 = east
polarization polarization. 0 = horizontal, 1 = vertical, 2 = left, 3 = right.
roll_off roll off alpha factor. 0 = 0.35, 1 = 0.25, 2 = 0.20, 3 = reserved.
modulation_system modulation system. 0 = DVB-S, 1 = DVB-S2.
modulation_type modulation type. 0 = auto, 1 = QPSK, 2 = 8PSK, 3 = 16-QAM (only for DVB-S2).
symbol_rate symbol rate in Kbauds.
fec inner FEC (convolutional code)
Definition at line 63 of file desc_sat.h.
Field Documentation
union { ... } dvb_desc_sat
uint32_t dvb_desc_sat::bitfield
Definition at line 76 of file desc_sat.h.
uint32_t dvb_desc_sat::fec
Definition at line 78 of file desc_sat.h.
uint32_t dvb_desc_sat::frequency
Definition at line 68 of file desc_sat.h.
uint8_t dvb_desc_sat::length
Definition at line 65 of file desc_sat.h.
uint8_t dvb_desc_sat::modulation_system
Definition at line 71 of file desc_sat.h.
uint8_t dvb_desc_sat::modulation_type
Definition at line 70 of file desc_sat.h.
struct dvb_desc* dvb_desc_sat::next
Definition at line 66 of file desc_sat.h.
uint16_t dvb_desc_sat::orbit
Definition at line 69 of file desc_sat.h.
uint8_t dvb_desc_sat::polarization
Definition at line 73 of file desc_sat.h.
uint8_t dvb_desc_sat::roll_off
Definition at line 72 of file desc_sat.h.
uint32_t dvb_desc_sat::symbol_rate
Definition at line 79 of file desc_sat.h.
uint8_t dvb_desc_sat::type
Definition at line 64 of file desc_sat.h.
uint8_t dvb_desc_sat::west_east
Definition at line 74 of file desc_sat.h.
Author
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