atsc_field_sync_mux Class Reference

Insert ATSC Field Syncs as required (atsc_data_segment --> atsc_data_segment)input: atsc_data_segment; output: atsc_data_segment. More...

#include <field_sync_mux.h>

Inheritance diagram for atsc_field_sync_mux:

List of all members.

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
void	reset ()
Static Public Attributes
static const int	N_SAVED_SYMBOLS = 12
Protected Attributes
bool	d_already_output_field_sync
unsigned char	d_saved_symbols [N_SAVED_SYMBOLS]
Friends
ATSC_API atsc_field_sync_mux_sptr	atsc_make_field_sync_mux ()

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Detailed Description

Insert ATSC Field Syncs as required (atsc_data_segment --> atsc_data_segment)

input: atsc_data_segment; output: atsc_data_segment.

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Member Function Documentation

void atsc_field_sync_mux::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_mux::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.

Reimplemented from gr::block.

void atsc_field_sync_mux::reset

(

)

[inline]

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Friends And Related Function Documentation

ATSC_API atsc_field_sync_mux_sptr atsc_make_field_sync_mux

(

)

[friend]

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Member Data Documentation

bool atsc_field_sync_mux::d_already_output_field_sync [protected]

unsigned char atsc_field_sync_mux::d_saved_symbols[N_SAVED_SYMBOLS] [protected]

const int atsc_field_sync_mux::N_SAVED_SYMBOLS = 12 [static]

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

• field_sync_mux.h