Mixer.h

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/*******************************************************************************
 * Copyright 2009-2016 Jörg Müller
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
 
#pragma once
 
#include "respec/Specification.h"
#include "respec/ConverterFunctions.h"
#include "util/Buffer.h"
 
#include <memory>
 
AUD_NAMESPACE_BEGIN
 
class IReader;
 
class AUD_API Mixer
{
private:
    // delete copy constructor and operator=
    Mixer(const Mixer&) = delete;
    Mixer& operator=(const Mixer&) = delete;
 
protected:
    DeviceSpecs m_specs;
 
    int m_length;
 
    Buffer m_buffer;
 
    convert_f m_convert;
 
public:
    Mixer(DeviceSpecs specs);
 
    virtual ~Mixer() {}
 
    DeviceSpecs getSpecs() const;
 
    void setSpecs(Specs specs);
 
    void setSpecs(DeviceSpecs specs);
 
    void mix(sample_t* buffer, int start, int length, float volume);
 
    void mix(sample_t* buffer, int start, int length, float volume_to, float volume_from);
 
    void read(data_t* buffer, float volume);
 
    void clear(int length);
};
 
AUD_NAMESPACE_END