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  /external/libopus/silk/
NLSF_VQ.c 44 opus_int32 diff_Q15, sum_error_Q30, sum_error_Q26;
54 diff_Q15 = silk_SUB_LSHIFT32( in_Q15[ m ], (opus_int32)*pCB_Q8++, 7 ); /* range: [ -32767 : 32767 ]*/
55 sum_error_Q30 = silk_SMULBB( diff_Q15, diff_Q15 );
58 diff_Q15 = silk_SUB_LSHIFT32( in_Q15[m + 1], (opus_int32)*pCB_Q8++, 7 ); /* range: [ -32767 : 32767 ]*/
59 sum_error_Q30 = silk_SMLABB( sum_error_Q30, diff_Q15, diff_Q15 );
NLSF_stabilize.c 55 opus_int32 diff_Q15, min_diff_Q15, min_center_Q15, max_center_Q15;
69 diff_Q15 = NLSF_Q15[i] - ( NLSF_Q15[i-1] + NDeltaMin_Q15[i] );
70 if( diff_Q15 < min_diff_Q15 ) {
71 min_diff_Q15 = diff_Q15;
76 diff_Q15 = ( 1 << 15 ) - ( NLSF_Q15[L-1] + NDeltaMin_Q15[L] );
77 if( diff_Q15 < min_diff_Q15 ) {
78 min_diff_Q15 = diff_Q15;

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