This is the abstract class for a Finite Impulse Response filter. More...
#include <gr_fir_fsf.h>
Public Member Functions | |
gr_fir_fsf () | |
construct new FIR with given taps. | |
gr_fir_fsf (const std::vector< float > &taps) | |
virtual | ~gr_fir_fsf () |
virtual short | filter (const float input[])=0 |
compute a single output value. | |
virtual void | filterN (short output[], const float input[], unsigned long n)=0 |
compute an array of N output values. | |
virtual void | filterNdec (short output[], const float input[], unsigned long n, unsigned decimate)=0 |
compute an array of N output values, decimating the input | |
virtual void | set_taps (const std::vector< float > &taps) |
install new_taps as the current taps. | |
unsigned | ntaps () const |
virtual const std::vector< float > | get_taps () const |
Protected Attributes | |
std::vector< float > | d_taps |
This is the abstract class for a Finite Impulse Response filter.
The trailing suffix has the form _IOT where I codes the input type, O codes the output type, and T codes the tap type. I,O,T are elements of the set 's' (short), 'f' (float), 'c' (gr_complex), 'i' (int)
gr_fir_fsf::gr_fir_fsf | ( | ) | [inline] |
construct new FIR with given taps.
Note that taps must be in forward order, e.g., coefficient 0 is stored in new_taps[0], coefficient 1 is stored in new_taps[1], etc.
gr_fir_fsf::gr_fir_fsf | ( | const std::vector< float > & | taps | ) | [inline] |
virtual gr_fir_fsf::~gr_fir_fsf | ( | ) | [virtual] |
virtual short gr_fir_fsf::filter | ( | const float | input[] | ) | [pure virtual] |
compute a single output value.
input
must have ntaps() valid entries. input[0] .. input[ntaps() - 1] are referenced to compute the output value.
Implemented in gr_fir_fsf_generic, and gr_fir_fsf_simd.
virtual void gr_fir_fsf::filterN | ( | short | output[], | |
const float | input[], | |||
unsigned long | n | |||
) | [pure virtual] |
virtual void gr_fir_fsf::filterNdec | ( | short | output[], | |
const float | input[], | |||
unsigned long | n, | |||
unsigned | decimate | |||
) | [pure virtual] |
virtual const std::vector<float> gr_fir_fsf::get_taps | ( | ) | const [inline, virtual] |
unsigned gr_fir_fsf::ntaps | ( | ) | const [inline] |
virtual void gr_fir_fsf::set_taps | ( | const std::vector< float > & | taps | ) | [inline, virtual] |
install new_taps
as the current taps.
Reimplemented in gr_fir_fsf_simd.
References d_taps, and gr_reverse().
std::vector<float> gr_fir_fsf::d_taps [protected] |
Referenced by get_taps(), ntaps(), and set_taps().