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/*
Audio File Library
Copyright (C) 2013 Michael Pruett <michael@68k.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA
*/
// BlockCodec is a base class for codecs with fixed-size packets.
#ifndef BlockCodec_h
#define BlockCodec_h
#include "Compiler.h"
#include "FileModule.h"
class BlockCodec : public FileModule
{
public:
virtual void runPull() OVERRIDE;
virtual void reset1() OVERRIDE;
virtual void reset2() OVERRIDE;
virtual void runPush() OVERRIDE;
virtual void sync1() OVERRIDE;
virtual void sync2() OVERRIDE;
protected:
int m_bytesPerPacket, m_framesPerPacket;
AFframecount m_framesToIgnore;
AFfileoffset m_savedPositionNextFrame;
AFframecount m_savedNextFrame;
BlockCodec(Mode, Track *, File *, bool canSeek);
virtual int decodeBlock(const uint8_t *encoded, int16_t *decoded) = 0;
virtual int encodeBlock(const int16_t *decoded, uint8_t *encoded) = 0;
};
#endif
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