/*
 * Copyright 2012 Jérôme Leveque
 * Copyright 2003 Marcus Overhagen
 * Distributed under the terms of the MIT License.
 */
#ifndef _MULTI_AUDIO_RESAMPLER_H
#define _MULTI_AUDIO_RESAMPLER_H


#include <MediaDefs.h>


class Resampler {
public:
                                                                Resampler(uint32 sourceFormat,
                                                                        uint32 destFormat);

        virtual                                         ~Resampler();

                        status_t                        InitCheck() const;

                        void                            Resample(const void *inputData,
                                                                        uint32 inputStride, void *outputData,
                                                                        uint32 outputStride, uint32 sampleCount);

protected:
        //static functions for converting datas
        void                                    _Void(const void *inputData, uint32 inputStride,
                                                                void *outputData, uint32 outputStride,
                                                                uint32 sampleCount);
        virtual  void                   _CopyFloat2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyFloat2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyFloat2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyFloat2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyFloat2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyFloat2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

        virtual  void                   _CopyDouble2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyDouble2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyDouble2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyDouble2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyDouble2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyDouble2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

        virtual  void                   _CopyInt2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyInt2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyInt2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyInt2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyInt2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyInt2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

        virtual  void                   _CopyShort2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyShort2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyShort2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyShort2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyShort2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyShort2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

        virtual  void                   _CopyUChar2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyUChar2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyUChar2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyUChar2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyUChar2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyUChar2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

        virtual  void                   _CopyChar2Float(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyChar2Double(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyChar2Short(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyChar2Int(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyChar2UChar(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
        virtual  void                   _CopyChar2Char(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);

private:
                        void                    (Resampler::*fFunc)(const void *inputData,
                                                                uint32 inputStride, void *outputData,
                                                                uint32 outputStride, uint32 sampleCount);
};


inline void
Resampler::Resample(const void *inputData, uint32 inputStride,
        void *outputData, uint32 outputStride, uint32 sampleCount)
{
        (this->*fFunc)(inputData, inputStride, outputData, outputStride,
                sampleCount);
}


#endif // _MULTI_AUDIO_RESAMPLER_H