libgui/include/gui/sounds/WavDecoder.hpp

/***************************************************************************
 * Copyright (C) 2010
 * by Dimok
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any
 * damages arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any
 * purpose, including commercial applications, and to alter it and
 * redistribute it freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you
 * must not claim that you wrote the original software. If you use
 * this software in a product, an acknowledgment in the product
 * documentation would be appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and
 * must not be misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source
 * distribution.
 *
 * for WiiXplorer 2010
 ***************************************************************************/
#ifndef WAVDECODER_HPP_
#define WAVDECODER_HPP_

#include <gui/sounds/SoundDecoder.hpp>

typedef struct {
    uint32_t magicRIFF;
    uint32_t size;
    uint32_t magicWAVE;
} SWaveHdr;

typedef struct {
    uint32_t magicFMT;
    uint32_t size;
    uint16_t format;
    uint16_t channels;
    uint32_t freq;
    uint32_t avgBps;
    uint16_t alignment;
    uint16_t bps;
} SWaveFmtChunk;

typedef struct {
    uint32_t magicDATA;
    uint32_t size;
} SWaveChunk;

class WavDecoder : public SoundDecoder {
public:
    WavDecoder(const char * filepath);
    WavDecoder(const uint8_t * snd, int32_t len);
    virtual ~WavDecoder();
    int32_t Read(uint8_t * buffer, int32_t buffer_size, int32_t pos);
protected:
    void OpenFile();
    void CloseFile();
    uint32_t DataOffset;
    uint32_t DataSize;
    bool Is16Bit;
};

#endif