dvb_desc_sat Struct Reference

Structure containing the satellite delivery system descriptor. More...

#include <desc_sat.h>

Collaboration diagram for dvb_desc_sat:

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 { ... }

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.

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The documentation for this struct was generated from the following file:

• lib/include/libdvbv5/desc_sat.h