gr::blocks::unpacked_to_packed_bb Class Reference

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

#include <unpacked_to_packed_bb.h>

Inheritance diagram for gr::blocks::unpacked_to_packed_bb:

List of all members.

Public Types
typedef boost::shared_ptr < unpacked_to_packed_bb >	sptr
Static Public Member Functions
static sptr	make (unsigned int bits_per_chunk, gr_endianness_t 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::blocks::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::blocks::packed_to_unpacked_bb, gr::blocks::unpacked_to_packed_bb,

gr::blocks::packed_to_unpacked_ss, gr::blocks::unpacked_to_packed_ss,

gr::blocks::chunks_to_symbols_bf, gr::blocks::chunks_to_symbols_bc.

gr::blocks::chunks_to_symbols_sf, gr::blocks::chunks_to_symbols_sc.

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Member Typedef Documentation

typedef boost::shared_ptr<unpacked_to_packed_bb> gr::blocks::unpacked_to_packed_bb::sptr

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Member Function Documentation

static sptr gr::blocks::unpacked_to_packed_bb::make	(	unsigned int	bits_per_chunk,
		gr_endianness_t	endianness
	)		[static]

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

• unpacked_to_packed_bb.h