31 template <
typename NumericType>
48 template <
typename SampleType>
55 using NumericType =
typename SampleTypeHelpers::ElementType<SampleType>::Type;
78 jassert (
spec.numChannels == 1);
95 memory.
malloc (1 + jmax (
newSize, size,
static_cast<size_t> (128)));
97 fifo = snapPointerToAlignment (memory.
getData(),
sizeof (SampleType));
101 for (
size_t i = 0; i < size; ++i)
102 fifo[i] = SampleType {0};
117 template <
typename ProcessContext>
120 static_assert (std::is_same_v<typename ProcessContext::SampleType, SampleType>,
121 "The sample-type of the FIR filter must match the sample-type supplied to this process callback");
124 auto&& inputBlock =
context.getInputBlock();
125 auto&& outputBlock =
context.getOutputBlock();
129 jassert (inputBlock.getNumChannels() == 1);
130 jassert (outputBlock.getNumChannels() == 1);
132 auto numSamples = inputBlock.getNumSamples();
133 auto*
src = inputBlock .getChannelPointer (0);
134 auto*
dst = outputBlock.getChannelPointer (0);
141 for (
size_t i = 0; i < numSamples; ++i)
143 fifo[p] =
dst[i] =
src[i];
144 p = (p == 0 ? size - 1 : p - 1);
149 for (
size_t i = 0; i < numSamples; ++i)
150 dst[i] = processSingleSample (
src[i], fifo,
fir, size, p);
163 return processSingleSample (
sample, fifo,
coefficients->getRawCoefficients(), size, pos);
169 SampleType* fifo =
nullptr;
170 size_t pos = 0, size = 0;
181 static SampleType JUCE_VECTOR_CALLTYPE processSingleSample (SampleType
sample, SampleType*
buf,
189 for (
k = 0;
k < m - p; ++
k)
192 for (
size_t j = 0;
j < p; ++
j)
195 p = (p == 0 ? m - 1 : p - 1);
201 JUCE_LEAK_DETECTOR (
Filter)
212 template <
typename NumericType>
248 size_t numSamples,
double sampleRate)
const noexcept;
259 size_t numSamples,
double sampleRate)
const noexcept;
int size() const noexcept
ElementType * begin() noexcept
ElementType * getRawDataPointer() noexcept
void resize(int targetNumItems)
void malloc(SizeType newNumElements, size_t elementSize=sizeof(ElementType))
ElementType * getData() const noexcept
Coefficients< NumericType >::Ptr coefficients
typename Coefficients< NumericType >::Ptr CoefficientsPtr
void process(const ProcessContext &context) noexcept
typename SampleTypeHelpers::ElementType< SampleType >::Type NumericType
SampleType JUCE_VECTOR_CALLTYPE processSample(SampleType sample) noexcept
Filter(CoefficientsPtr coefficientsToUse)
void prepare(const ProcessSpec &spec) noexcept
void normalise() noexcept
void getMagnitudeForFrequencyArray(double *frequencies, double *magnitudes, size_t numSamples, double sampleRate) const noexcept
size_t getFilterOrder() const noexcept
Coefficients(const NumericType *samples, size_t numSamples)
Coefficients(size_t size)
double getMagnitudeForFrequency(double frequency, double sampleRate) const noexcept
Array< NumericType > coefficients
double getPhaseForFrequency(double frequency, double sampleRate) const noexcept
NumericType * getRawCoefficients() noexcept
const NumericType * getRawCoefficients() const noexcept
void getPhaseForFrequencyArray(double *frequencies, double *phases, size_t numSamples, double sampleRate) const noexcept