Norimasa Okamoto / BaseJpegDecode

huffmancode to decode in real-time for motion-jpeg

Dependents:   BaseJpegDecode_example SimpleJpegDecode_example Dumb_box_rev2

example code:

Import programBaseJpegDecode_example

BaseJpegDeocde exampe program

Last commit 27 Jan 2013 by Norimasa Okamoto

Import programSimpleJpegDecode_example

convert JPEG stream data to bitmap, BaseJpegDecode example program

Last commit 02 Feb 2013 by Norimasa Okamoto

inverseDCT.h

Committer:
va009039
Date:
2012-10-30
Revision:
2:5b1dd4e34857
Child:
3:a7547692071d

File content as of revision 2:5b1dd4e34857:

#ifndef INVERSE_DCT_H
#define INVERSE_DCT_H

#define DCT_USE_INT 1

#ifdef DCT_USE_INT

class inverseDCT {
public:
    inverseDCT();
    void inputBLOCK(int mcu, int block, int scan, int value);
    virtual void outputBLOCK(int mcu, int block, unsigned char* values) = 0;
private:
    int16_t m_sum[64];
    int8_t m_cosxu[64];
    int8_t m_cucv[64];
};

#else

class inverseDCT {
public:
    inverseDCT();
    void input(int mcu, int block, int scan, int value);
    int m_result[64];
private:
    int m_sum[64];
    void calc(int mcu, int block, int s[]);
    int m_s[64];
    void outputDot(int mcu, int block, int x, int y, int value);
};

#endif

#endif // INVERSE_DCT_H