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C/C++ Source or Header | 2001-04-07 | 5.1 KB | 272 lines

/* ** quantab - y=2^((x-210)/4) ** for DSP double precision mode: factor 2^(23+12) */ /* max = (double)0x1000000; val = pow( 2.0, ((double)i-210.0) * 0.25 ) * (double)(1<<12); quantab[i*2] = (LONG)( val * 0.5 ); quantab[i*2+1] = (LONG)( fmod( ldexp(val,23) , max ) + 0.5 ); */ static LONG quantab[2*256] = { 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 0x000000,0x000000, 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