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#ifndef COMMON_H  
#define COMMON_H  
 
#define real double 
#define M_PI    3.14159265358979323846 
#define M_SQRT2 1.41421356237309504880 
#define SBLIMIT                 32 
#define SCALE_BLOCK             12 
#define SSLIMIT                 18 
 
struct TextInfo  
{ 
    char Title[512]; 
    char Artist[512]; 
    char Album[512]; 
    char Copyright[512]; 
    char Comment[512]; 
    char Genre[512]; 
    char Year[512];     
}; 
 
#endif