GNU Radio's DAB Package
gr::dab::crc16_bb_impl Class Reference

crc16 is written in the last 2 bits of input vector More...

#include <crc16_bb_impl.h>

Inheritance diagram for gr::dab::crc16_bb_impl:

Public Member Functions

 crc16_bb_impl (int length, uint16_t generator, uint16_t initial_state)
 
 ~crc16_bb_impl ()
 
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)
 

Additional Inherited Members

- Public Types inherited from gr::dab::crc16_bb
typedef boost::shared_ptr< crc16_bbsptr
 
- Static Public Member Functions inherited from gr::dab::crc16_bb
static sptr make (int length, uint16_t generator, uint16_t initial_state)
 Return a shared_ptr to a new instance of dab::crc16_bb. More...
 

Detailed Description

crc16 is written in the last 2 bits of input vector

input: char vector of length length (packed bytes)

output: char vector of length length (packed bytes) with crc at last 2 bytes (overwrites last 2 bytes)

uses the crc16 function to calculate a 2 byte crc word and write it to the FIB (overwrites last 2 bytes)

Parameters
lengthLength of input and output vector in bytes. (default is 32 for DAB FIBs)
generatorGenerator polynom for shift register. (default is 0x1021 for DAB)
initial_stateInitial state of shift register. (default is 0xffff for DAB)

Constructor & Destructor Documentation

◆ crc16_bb_impl()

gr::dab::crc16_bb_impl::crc16_bb_impl ( int  length,
uint16_t  generator,
uint16_t  initial_state 
)

◆ ~crc16_bb_impl()

gr::dab::crc16_bb_impl::~crc16_bb_impl ( )

Member Function Documentation

◆ forecast()

void gr::dab::crc16_bb_impl::forecast ( int  noutput_items,
gr_vector_int &  ninput_items_required 
)

◆ general_work()

int gr::dab::crc16_bb_impl::general_work ( int  noutput_items,
gr_vector_int &  ninput_items,
gr_vector_const_void_star &  input_items,
gr_vector_void_star &  output_items 
)

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