roc::packet::FEC Struct Reference

FECFRAME packet. More...

#include <fec.h>

Public Member Functions
	FEC ()
	Construct zero FEC packet.
int	compare (const FEC &) const
	Determine packet order.

Public Attributes
FecScheme	fec_scheme
	The FEC scheme to which the packet belongs to.
size_t	encoding_symbol_id
	The index number of packet in a block ("esi").
blknum_t	source_block_number
	Number of a source block in a packet stream ("sbn").
size_t	source_block_length
	Number of source packets in block to which this packet belongs ("sblen").
size_t	block_length
	Number of source + repair packets in block to which this packet belongs ("blen").
core::Slice< uint8_t >	payload_id
	FECFRAME header or footer.
core::Slice< uint8_t >	payload
	FECFRAME payload.

Detailed Description

FECFRAME packet.

Definition at line 35 of file fec.h.

Constructor & Destructor Documentation

FEC()

roc::packet::FEC::FEC

(

)

Construct zero FEC packet.

Member Function Documentation

compare()

int roc::packet::FEC::compare

(

const FEC &

)

const

Determine packet order.

Member Data Documentation

block_length

size_t roc::packet::FEC::block_length

Number of source + repair packets in block to which this packet belongs ("blen").

Remarks

Different blocks can have different number of packets. Always larger than source_block_length. This field is not supported on all FEC schemes.

Definition at line 66 of file fec.h.

encoding_symbol_id

size_t roc::packet::FEC::encoding_symbol_id

The index number of packet in a block ("esi").

Remarks

Source packets are numbered in range [0; k). Repair packets are numbered in range [k; k + n), where k is a number of source packets per block (source_block_length) n is a number of repair packets per block.

Definition at line 47 of file fec.h.

fec_scheme

FecScheme roc::packet::FEC::fec_scheme

The FEC scheme to which the packet belongs to.

Remarks

Defines both FEC header or footer format and FEC payalod format.

Definition at line 39 of file fec.h.

payload

core::Slice<uint8_t> roc::packet::FEC::payload

FECFRAME payload.

Remarks

Doesn't include FECFRAME header or footer.

Definition at line 74 of file fec.h.

payload_id

core::Slice<uint8_t> roc::packet::FEC::payload_id

FECFRAME header or footer.

Definition at line 69 of file fec.h.

source_block_length

size_t roc::packet::FEC::source_block_length

Number of source packets in block to which this packet belongs ("sblen").

Remarks

Different blocks can have different number of source packets.

Definition at line 59 of file fec.h.

source_block_number

blknum_t roc::packet::FEC::source_block_number

Number of a source block in a packet stream ("sbn").

Remarks

Source block is formed from the source packets. Blocks are numbered sequentially starting from a random number. Block number can wrap.

Definition at line 54 of file fec.h.

---

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

• roc_packet/fec.h