SonarcAudioSample.h

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/*
Copyright (C) 2005 The Pentagram team

This program 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.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
#ifndef SONARCAUDIOSAMPLE_H_INCLUDED
#define SONARCAUDIOSAMPLE_H_INCLUDED

#include "AudioSample.h"

namespace Pentagram {

class SonarcAudioSample : public AudioSample
{
        struct SonarcDecompData {
                uint32          pos;
                uint32          sample_pos;
        };

        static bool     GeneratedOneTable;
        static int      OneTable[256];

        static void GenerateOneTable();

        static void decode_EC(int mode, int samplecount,
                                                const uint8* source, int sourcesize,
                                                uint8* dest);
        static void decode_LPC(int order, int nsamples,
                                                uint8* dest, const uint8* factors);
        static int audio_decode(const uint8* source, uint8* dest);

        uint32          src_offset;

public:
        SonarcAudioSample(uint8 *buffer_, uint32 size_);
        virtual ~SonarcAudioSample(void);

        virtual void initDecompressor(void *DecompData) const;
        virtual uint32 decompressFrame(void *DecompData, void *samples) const;
        virtual void rewind(void *DecompData) const;
};

};

#endif

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