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@2:5b1dd4e34857, 2012-10-30 (annotated)

Committer:
va009039
Date:
Tue Oct 30 13:22:08 2012 +0000
Revision:
2:5b1dd4e34857
Child:
3:a7547692071d
add inverseDCT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 2:5b1dd4e34857 1 #ifndef INVERSE_DCT_H
va009039 2:5b1dd4e34857 2 #define INVERSE_DCT_H
va009039 2:5b1dd4e34857 3
va009039 2:5b1dd4e34857 4 #define DCT_USE_INT 1
va009039 2:5b1dd4e34857 5
va009039 2:5b1dd4e34857 6 #ifdef DCT_USE_INT
va009039 2:5b1dd4e34857 7
va009039 2:5b1dd4e34857 8 class inverseDCT {
va009039 2:5b1dd4e34857 9 public:
va009039 2:5b1dd4e34857 10 inverseDCT();
va009039 2:5b1dd4e34857 11 void inputBLOCK(int mcu, int block, int scan, int value);
va009039 2:5b1dd4e34857 12 virtual void outputBLOCK(int mcu, int block, unsigned char* values) = 0;
va009039 2:5b1dd4e34857 13 private:
va009039 2:5b1dd4e34857 14 int16_t m_sum[64];
va009039 2:5b1dd4e34857 15 int8_t m_cosxu[64];
va009039 2:5b1dd4e34857 16 int8_t m_cucv[64];
va009039 2:5b1dd4e34857 17 };
va009039 2:5b1dd4e34857 18
va009039 2:5b1dd4e34857 19 #else
va009039 2:5b1dd4e34857 20
va009039 2:5b1dd4e34857 21 class inverseDCT {
va009039 2:5b1dd4e34857 22 public:
va009039 2:5b1dd4e34857 23 inverseDCT();
va009039 2:5b1dd4e34857 24 void input(int mcu, int block, int scan, int value);
va009039 2:5b1dd4e34857 25 int m_result[64];
va009039 2:5b1dd4e34857 26 private:
va009039 2:5b1dd4e34857 27 int m_sum[64];
va009039 2:5b1dd4e34857 28 void calc(int mcu, int block, int s[]);
va009039 2:5b1dd4e34857 29 int m_s[64];
va009039 2:5b1dd4e34857 30 void outputDot(int mcu, int block, int x, int y, int value);
va009039 2:5b1dd4e34857 31 };
va009039 2:5b1dd4e34857 32
va009039 2:5b1dd4e34857 33 #endif
va009039 2:5b1dd4e34857 34
va009039 2:5b1dd4e34857 35 #endif // INVERSE_DCT_H