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/frameworks/base/media/libstagefright/codecs/aacdec/
H A Dpv_sine.cpp38 Find the sine of a number between 0 and pi/2
118 Int32 sine; local
131 sine = fxp_mul32_Q30(*(pt_table++), z);
135 sine += *(pt_table++);
136 sine = fxp_mul32_Q30(sine, z);
142 sine = z; /* better approximation in this range */
147 sine = -sine;
150 return sine;
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