OpenShot Audio Library | OpenShotAudio
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juce_IIRFilterAudioSource.cpp
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2022 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace
juce
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{
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IIRFilterAudioSource::IIRFilterAudioSource
(
AudioSource
*
const
inputSource,
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const
bool
deleteInputWhenDeleted
)
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: input (inputSource,
deleteInputWhenDeleted
)
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{
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jassert (inputSource !=
nullptr
);
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for
(
int
i = 2; --i >= 0;)
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iirFilters.add (
new
IIRFilter
());
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}
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IIRFilterAudioSource::~IIRFilterAudioSource
() {}
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//==============================================================================
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void
IIRFilterAudioSource::setCoefficients
(
const
IIRCoefficients
&
newCoefficients
)
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{
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for
(
int
i = iirFilters.size(); --i >= 0;)
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iirFilters.getUnchecked (i)->setCoefficients (
newCoefficients
);
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}
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void
IIRFilterAudioSource::makeInactive
()
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{
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for
(
int
i = iirFilters.size(); --i >= 0;)
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iirFilters.getUnchecked (i)->makeInactive();
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}
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//==============================================================================
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void
IIRFilterAudioSource::prepareToPlay
(
int
samplesPerBlockExpected
,
double
sampleRate)
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{
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input->prepareToPlay (
samplesPerBlockExpected
, sampleRate);
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for
(
int
i = iirFilters.size(); --i >= 0;)
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iirFilters.getUnchecked (i)->reset();
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}
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void
IIRFilterAudioSource::releaseResources
()
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{
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input->releaseResources();
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}
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void
IIRFilterAudioSource::getNextAudioBlock
(
const
AudioSourceChannelInfo
&
bufferToFill
)
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{
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input->getNextAudioBlock (
bufferToFill
);
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const
int
numChannels =
bufferToFill
.buffer->getNumChannels();
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while
(numChannels > iirFilters.size())
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iirFilters.add (
new
IIRFilter
(*iirFilters.getUnchecked (0)));
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for
(
int
i = 0; i < numChannels; ++i)
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iirFilters.getUnchecked (i)
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->processSamples (
bufferToFill
.buffer->getWritePointer (i,
bufferToFill
.startSample),
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bufferToFill
.numSamples);
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}
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}
// namespace juce
juce::AudioSource
Definition
juce_AudioSource.h:110
juce::IIRCoefficients
Definition
juce_audio_basics/utilities/juce_IIRFilter.h:37
juce::IIRFilterAudioSource::makeInactive
void makeInactive()
Definition
juce_IIRFilterAudioSource.cpp:45
juce::IIRFilterAudioSource::prepareToPlay
void prepareToPlay(int samplesPerBlockExpected, double sampleRate) override
Definition
juce_IIRFilterAudioSource.cpp:52
juce::IIRFilterAudioSource::setCoefficients
void setCoefficients(const IIRCoefficients &newCoefficients)
Definition
juce_IIRFilterAudioSource.cpp:39
juce::IIRFilterAudioSource::IIRFilterAudioSource
IIRFilterAudioSource(AudioSource *inputSource, bool deleteInputWhenDeleted)
Definition
juce_IIRFilterAudioSource.cpp:26
juce::IIRFilterAudioSource::releaseResources
void releaseResources() override
Definition
juce_IIRFilterAudioSource.cpp:60
juce::IIRFilterAudioSource::~IIRFilterAudioSource
~IIRFilterAudioSource() override
Definition
juce_IIRFilterAudioSource.cpp:36
juce::IIRFilterAudioSource::getNextAudioBlock
void getNextAudioBlock(const AudioSourceChannelInfo &) override
Definition
juce_IIRFilterAudioSource.cpp:65
juce::IIRFilter
Definition
juce_audio_basics/utilities/juce_IIRFilter.h:232
juce::Optional
Definition
juce_Optional.h:57
juce::AudioSourceChannelInfo
Definition
juce_AudioSource.h:33
JuceLibraryCode
modules
juce_audio_basics
sources
juce_IIRFilterAudioSource.cpp
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