baz_unpacked_to_packed_bb Class Reference

Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.input: stream of unsigned char; output: stream of unsigned char. More...

#include <baz_unpacked_to_packed_bb.h>

List of all members.

Public Member Functions
void	forecast (int noutput_items, gr_vector_int &ninput_items_required)
int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
bool	check_topology (int ninputs, int noutputs)
Friends
BAZ_API baz_unpacked_to_packed_bb_sptr	baz_make_unpacked_to_packed_bb (unsigned int bits_per_chunk, unsigned int bits_into_output, int endianness)

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Detailed Description

Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.

input: stream of unsigned char; output: stream of unsigned char.

This is the inverse of gr_packed_to_unpacked_XX.

The low bits_per_chunk bits are extracted from each input byte or short. These bits are then packed densely into the output bytes or shorts, such that all 8 or 16 bits of the output bytes or shorts are filled with valid input bits. The right thing is done if bits_per_chunk is not a power of two.

The combination of gr_packed_to_unpacked_XX followed by gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the general case of mapping from a stream of bytes or shorts into arbitrary float or complex symbols.

See also:

gr_packed_to_unpacked_bb, gr_unpacked_to_packed_bb,

gr_packed_to_unpacked_ss, gr_unpacked_to_packed_ss,

gr_chunks_to_symbols_bf, gr_chunks_to_symbols_bc.

gr_chunks_to_symbols_sf, gr_chunks_to_symbols_sc.

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Member Function Documentation

bool baz_unpacked_to_packed_bb::check_topology	(	int	ninputs,
		int	noutputs
	)		[inline]

void baz_unpacked_to_packed_bb::forecast	(	int	noutput_items,
		gr_vector_int &	ninput_items_required
	)

int baz_unpacked_to_packed_bb::general_work	(	int	noutput_items,
		gr_vector_int &	ninput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)

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Friends And Related Function Documentation

BAZ_API baz_unpacked_to_packed_bb_sptr baz_make_unpacked_to_packed_bb	(	unsigned int	bits_per_chunk,
		unsigned int	bits_into_output,
		int	endianness
	)		[friend]

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

• baz_unpacked_to_packed_bb.h