gr::blocks::kernel::unpack_k_bits Class Reference

Converts a byte with k relevent bits to k output bytes with 1 bit in the LSB. More...

#include <gnuradio/blocks/unpack_k_bits.h>

Public Member Functions
	unpack_k_bits (unsigned k)
	Make an unpack_k_bits object. More...
	~unpack_k_bits ()
void	unpack (unsigned char *bits, const unsigned char *bytes, int nbytes) const
	Perform the unpacking. More...
void	unpack_rev (unsigned char *bits, const unsigned char *bytes, int nbytes) const
int	k () const

Detailed Description

Converts a byte with k relevent bits to k output bytes with 1 bit in the LSB.

This is the algorithm kernel for the gr::blocks::unpack_k_bits_bb block.

Example: k = 4 in = [0xf5, 0x08] out = [0,1,0,1, 1,0,0,0]

k = 8 in = [0xf5, 0x08] out = [1,1,1,1, 0,1,0,1, 0,0,0,0, 1,0,0,0]

Constructor & Destructor Documentation

gr::blocks::kernel::unpack_k_bits::unpack_k_bits

(

unsigned

k

)

Make an unpack_k_bits object.

Parameters

k	number of bits to unpack.

gr::blocks::kernel::unpack_k_bits::~unpack_k_bits

(

)

Member Function Documentation

int gr::blocks::kernel::unpack_k_bits::k

(

)

const

void gr::blocks::kernel::unpack_k_bits::unpack	(	unsigned char *	bits,
		const unsigned char *	bytes,
		int	nbytes
	)		const

Perform the unpacking.

This function performs no bounds checking. It assumes that the input, in, has of length nbytes and that the output vector, out, has k*nbytes available for writing.

Parameters

bits	output vector (1-bit per byte) of the unpacked data
bytes	The input vector of bytes to unpack
nbytes	The number of input bytes

void gr::blocks::kernel::unpack_k_bits::unpack_rev	(	unsigned char *	bits,
		const unsigned char *	bytes,
		int	nbytes
	)		const

Unpacks in reverse order from unpack().

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

• unpack_k_bits.h