atsc_basic_trellis_encoder Class Reference

ATSC trellis encoder building block. More...

#include <atsc_basic_trellis_encoder.h>

List of all members.

Public Member Functions
	atsc_basic_trellis_encoder ()
int	encode (unsigned int input)
void	reset ()
	reset encoder state
Static Public Attributes
const unsigned char	next_state [32]
const unsigned char	out_symbol [32]
Private Attributes
int	state

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Detailed Description

ATSC trellis encoder building block.

Note this is NOT the 12x interleaved interface.

This implements a single instance of the ATSC trellis encoder. This is a rate 2/3 encoder (really a constraint length 3, rate 1/2 encoder with the top bit passed through unencoded. This does not implement the "precoding" of the top bit, because the NTSC rejection filter is not supported.

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Constructor & Destructor Documentation

atsc_basic_trellis_encoder::atsc_basic_trellis_encoder (   )  [inline]

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Member Function Documentation

int atsc_basic_trellis_encoder::encode (  unsigned int  input  )

Encode two bit INPUT into 3 bit return value. Domain is [0,3], Range is [0,7]. The mapping to bipolar levels is not done.

void atsc_basic_trellis_encoder::reset (   )  [inline]

reset encoder state

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Member Data Documentation

const unsigned char atsc_basic_trellis_encoder::next_state [static]

Initial value: { 0,1,4,5, 2,3,6,7, 1,0,5,4, 3,2,7,6, 4,5,0,1, 6,7,2,3, 5,4,1,0, 7,6,3,2 }

const unsigned char atsc_basic_trellis_encoder::out_symbol [static]

Initial value: { 0,2,4,6, 1,3,5,7, 0,2,4,6, 1,3,5,7, 4,6,0,2, 5,7,1,3, 4,6,0,2, 5,7,1,3 }

int atsc_basic_trellis_encoder::state [private]

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The documentation for this class was generated from the following files:

• atsc_basic_trellis_encoder.h
• atsc_basic_trellis_encoder.cc

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