781dd5edb5
All these files were removed since accidental commit, revert and merge in 2.8.ea31f0ac3b+0a4e170c28+11f9a23a28+7b27b10fa6
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*******************************************************************************
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* Copyright 2009-2016 Jörg Müller
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************/
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#pragma once
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/**
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* @file Envelope.h
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* @ingroup fx
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* The Envelope class.
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*/
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#include "fx/Effect.h"
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AUD_NAMESPACE_BEGIN
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class CallbackIIRFilterReader;
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struct EnvelopeParameters;
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/**
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* This sound creates an envelope follower reader.
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*/
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class AUD_API Envelope : public Effect
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{
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private:
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/**
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* The attack value in seconds.
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*/
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const float m_attack;
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/**
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* The release value in seconds.
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*/
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const float m_release;
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/**
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* The threshold value.
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*/
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const float m_threshold;
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/**
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* The attack/release threshold value.
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*/
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const float m_arthreshold;
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// delete copy constructor and operator=
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Envelope(const Envelope&) = delete;
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Envelope& operator=(const Envelope&) = delete;
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public:
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/**
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* Creates a new envelope sound.
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* \param sound The input sound.
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* \param attack The attack value in seconds.
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* \param release The release value in seconds.
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* \param threshold The threshold value.
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* \param arthreshold The attack/release threshold value.
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*/
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Envelope(std::shared_ptr<ISound> sound, float attack, float release,
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float threshold, float arthreshold);
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virtual std::shared_ptr<IReader> createReader();
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/**
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* The envelopeFilter function implements the doFilterIIR callback
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* for the callback IIR filter.
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* @param reader The CallbackIIRFilterReader that executes the callback.
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* @param param The envelope parameters.
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* @return The filtered sample.
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*/
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static sample_t AUD_LOCAL envelopeFilter(CallbackIIRFilterReader* reader, EnvelopeParameters* param);
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/**
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* The endEnvelopeFilter function implements the endFilterIIR callback
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* for the callback IIR filter.
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* @param param The envelope parameters.
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*/
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static void AUD_LOCAL endEnvelopeFilter(EnvelopeParameters* param);
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};
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AUD_NAMESPACE_END
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