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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
/**
* @file SuperposeReader.h
* @ingroup sequence
* The SuperposeReader class.
*/
#include "IReader.h"
#include "util/Buffer.h"
#include <memory>
AUD_NAMESPACE_BEGIN
/**
* This reader plays two readers with the same specs in parallel.
*/
class AUD_API SuperposeReader : public IReader
{
private:
/**
* The first reader.
*/
std::shared_ptr<IReader> m_reader1;
/**
* The second reader.
*/
std::shared_ptr<IReader> m_reader2;
/**
* Buffer used for mixing.
*/
Buffer m_buffer;
// delete copy constructor and operator=
SuperposeReader(const SuperposeReader&) = delete;
SuperposeReader& operator=(const SuperposeReader&) = delete;
public:
/**
* Creates a new superpose reader.
* \param reader1 The first reader to read from.
* \param reader2 The second reader to read from.
* \exception Exception Thrown if the specs from the readers differ.
*/
SuperposeReader(std::shared_ptr<IReader> reader1, std::shared_ptr<IReader> reader2);
/**
* Destroys the reader.
*/
virtual ~SuperposeReader();
virtual bool isSeekable() const;
virtual void seek(int position);
virtual int getLength() const;
virtual int getPosition() const;
virtual Specs getSpecs() const;
virtual void read(int& length, bool& eos, sample_t* buffer);
};
AUD_NAMESPACE_END
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