typedef int DCTELEM;		/* 16 or 32 bits is fine */


//void jpeg_fdct_ifast (DCTELEM * data);
void jpeg_fdct_ifast (DCTELEM * data, unsigned char * qdata);
//void IDCT(const int input[64], unsigned char *output);
void IDCT(int Y[64], unsigned char *qdata, unsigned char *output);