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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* Audaspace is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file audaspace/intern/AUD_ReadDevice.h
* \ingroup audaspaceintern
*/
#ifndef __AUD_READDEVICE_H__
#define __AUD_READDEVICE_H__
#include "AUD_SoftwareDevice.h"
/**
* This device enables to let the user read raw data out of it.
*/
class AUD_ReadDevice : public AUD_SoftwareDevice
{
private:
/**
* Whether the device currently.
*/
bool m_playing;
// hide copy constructor and operator=
AUD_ReadDevice(const AUD_ReadDevice&);
AUD_ReadDevice& operator=(const AUD_ReadDevice&);
protected:
virtual void playing(bool playing);
public:
/**
* Creates a new read device.
* \param specs The wanted audio specification.
*/
AUD_ReadDevice(AUD_DeviceSpecs specs);
/**
* Creates a new read device.
* \param specs The wanted audio specification.
*/
AUD_ReadDevice(AUD_Specs specs);
/**
* Closes the device.
*/
virtual ~AUD_ReadDevice();
/**
* Reads the next bytes into the supplied buffer.
* \param buffer The target buffer.
* \param length The length in samples to be filled.
* \return True if the reading succeeded, false if there are no sounds
* played back currently, in that case the buffer is filled with
* silence.
*/
bool read(data_t* buffer, int length);
/**
* Changes the output specification.
* \param specs The new audio data specification.
*/
void changeSpecs(AUD_Specs specs);
};
#endif //__AUD_READDEVICE_H__
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