gr-baz Package
baz_unpacked_to_packed_bb Class Reference

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

#include <baz_unpacked_to_packed_bb.h>

Inheritance diagram for baz_unpacked_to_packed_bb:

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)
 

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.

Member Function Documentation

◆ check_topology()

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

◆ forecast()

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

◆ general_work()

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 
)

Friends And Related Function Documentation

◆ baz_make_unpacked_to_packed_bb

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

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