FIR with internal buffer for float input, float output and float taps.
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#include <gri_fir_filter_with_buffer_fff.h>
List of all members.
Public Member Functions |
| gri_fir_filter_with_buffer_fff (const std::vector< float > &taps) |
| construct new FIR with given taps.
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| ~gri_fir_filter_with_buffer_fff () |
float | filter (float input) |
| compute a single output value.
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float | filter (const float input[], unsigned long dec) |
| compute a single output value; designed for decimating filters.
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void | filterN (float output[], const float input[], unsigned long n) |
| compute an array of N output values.
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void | filterNdec (float output[], const float input[], unsigned long n, unsigned long decimate) |
| compute an array of N output values, decimating the input
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void | set_taps (const std::vector< float > &taps) |
| install new_taps as the current taps.
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unsigned | ntaps () const |
const std::vector< float > | get_taps () const |
Detailed Description
FIR with internal buffer for float input, float output and float taps.
Constructor & Destructor Documentation
gri_fir_filter_with_buffer_fff::gri_fir_filter_with_buffer_fff |
( |
const std::vector< float > & |
taps | ) |
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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.
gri_fir_filter_with_buffer_fff::~gri_fir_filter_with_buffer_fff |
( |
| ) |
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Member Function Documentation
float gri_fir_filter_with_buffer_fff::filter |
( |
float |
input | ) |
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compute a single output value.
input
is a single input value of the filter type
- Returns:
- the filtered input value.
float gri_fir_filter_with_buffer_fff::filter |
( |
const float |
input[], |
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unsigned long |
dec |
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) |
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compute a single output value; designed for decimating filters.
input
is a single input value of the filter type. The value of dec is the decimating value of the filter, so input[] must have dec valid values. The filter pushes dec number of items onto the circ. buffer before computing a single output.
- Returns:
- the filtered input value.
void gri_fir_filter_with_buffer_fff::filterN |
( |
float |
output[], |
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const float |
input[], |
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unsigned long |
n |
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) |
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compute an array of N output values.
input
must have (n - 1 + ntaps()) valid entries. input[0] .. input[n - 1 + ntaps() - 1] are referenced to compute the output values.
void gri_fir_filter_with_buffer_fff::filterNdec |
( |
float |
output[], |
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const float |
input[], |
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unsigned long |
n, |
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unsigned long |
decimate |
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) |
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compute an array of N output values, decimating the input
input
must have (decimate * (n - 1) + ntaps()) valid entries. input[0] .. input[decimate * (n - 1) + ntaps() - 1] are referenced to compute the output values.
const std::vector<float> gri_fir_filter_with_buffer_fff::get_taps |
( |
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const |
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inline |
unsigned gri_fir_filter_with_buffer_fff::ntaps |
( |
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const |
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inline |
- Returns:
- number of taps in filter.
void gri_fir_filter_with_buffer_fff::set_taps |
( |
const std::vector< float > & |
taps | ) |
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install new_taps
as the current taps.
Member Data Documentation
float* gri_fir_filter_with_buffer_fff::d_buffer |
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protected |
unsigned int gri_fir_filter_with_buffer_fff::d_idx |
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protected |
std::vector<float> gri_fir_filter_with_buffer_fff::d_taps |
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protected |
The documentation for this class was generated from the following file: