781dd5edb5
All these files were removed since accidental commit, revert and merge in 2.8.ea31f0ac3b+0a4e170c28+11f9a23a28+7b27b10fa6
124 lines
3.0 KiB
C++
124 lines
3.0 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 Mixer.h
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* @ingroup respec
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* The Mixer class.
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*/
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#include "respec/Specification.h"
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#include "respec/ConverterFunctions.h"
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#include "util/Buffer.h"
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#include <memory>
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AUD_NAMESPACE_BEGIN
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class IReader;
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/**
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* This abstract class is able to mix audiosignals with same channel count
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* and sample rate and convert it to a specific output format.
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*/
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class AUD_API Mixer
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{
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private:
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// delete copy constructor and operator=
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Mixer(const Mixer&) = delete;
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Mixer& operator=(const Mixer&) = delete;
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protected:
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/**
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* The output specification.
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*/
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DeviceSpecs m_specs;
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/**
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* The length of the mixing buffer.
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*/
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int m_length;
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/**
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* The mixing buffer.
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*/
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Buffer m_buffer;
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/**
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* Converter function.
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*/
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convert_f m_convert;
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public:
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/**
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* Creates the mixer.
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*/
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Mixer(DeviceSpecs specs);
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/**
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* Destroys the mixer.
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*/
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virtual ~Mixer() {}
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/**
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* Returns the target specification for superposing.
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* \return The target specification.
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*/
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DeviceSpecs getSpecs() const;
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/**
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* Sets the target specification for superposing.
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* \param specs The target specification.
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*/
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void setSpecs(Specs specs);
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/**
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* Mixes a buffer.
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* \param buffer The buffer to superpose.
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* \param start The start sample of the buffer.
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* \param length The length of the buffer in samples.
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* \param volume The mixing volume. Must be a value between 0.0 and 1.0.
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*/
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void mix(sample_t* buffer, int start, int length, float volume);
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/**
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* Mixes a buffer with linear volume interpolation.
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* \param buffer The buffer to superpose.
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* \param start The start sample of the buffer.
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* \param length The length of the buffer in samples.
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* \param volume_to The target mixing volume. Must be a value between 0.0 and 1.0.
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* \param volume_from The start mixing volume. Must be a value between 0.0 and 1.0.
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*/
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void mix(sample_t* buffer, int start, int length, float volume_to, float volume_from);
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/**
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* Writes the mixing buffer into an output buffer.
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* \param buffer The target buffer for superposing.
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* \param volume The mixing volume. Must be a value between 0.0 and 1.0.
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*/
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void read(data_t* buffer, float volume);
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/**
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* Clears the mixing buffer.
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* \param length The length of the buffer in samples.
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*/
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void clear(int length);
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};
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AUD_NAMESPACE_END
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