ATSC Field Sync Demux. More...

#include <atsc_field_sync_demux.h>

Inheritance diagram for atsc_field_sync_demux:

Public Member Functions
void	forecast (int noutput_items, gr_vector_int &ninput_items_required)
	Estimate input requirements given output request.
int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	compute output items from input items
int	work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
void	reset ()
Protected Attributes
bool	d_locked
bool	d_in_field2
int	d_segment_number
gr_uint64	d_next_input
gr_uint64	d_lost_index
unsigned long long	d_inputs0_index
unsigned long	d_inputs0_size
int	d_consume
Friends
ATSC_API atsc_field_sync_demux_sptr	atsc_make_field_sync_demux ()

Detailed Description

ATSC Field Sync Demux.

This class accepts 1 stream of floats (data), and 1 stream of tags (syminfo). * It outputs one stream of atsc_soft_data_segment packets

Member Function Documentation

void atsc_field_sync_demux::forecast	(	int	noutput_items,
		gr_vector_int &	ninput_items_required
	)		`[virtual]`

Estimate input requirements given output request.

Parameters:

noutput_items	number of output items to produce
ninput_items_required	number of input items required on each input stream

Given a request to product noutput_items, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close.

Reimplemented from gr_block.

int atsc_field_sync_demux::general_work	(	int	noutput_items,
		gr_vector_int &	ninput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)		`[virtual]`

compute output items from input items

Parameters:

noutput_items	number of output items to write on each output stream
ninput_items	number of input items available on each input stream
input_items	vector of pointers to the input items, one entry per input stream
output_items	vector of pointers to the output items, one entry per output stream

Returns:: number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items

general_work must call consume or consume_each to indicate how many items were consumed on each input stream.

Implements gr_block.

void atsc_field_sync_demux::reset ( ) [inline]