/src/opus/silk/inner_prod_aligned.c
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1 | | /*********************************************************************** |
2 | | Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
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4 | | modification, are permitted provided that the following conditions |
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15 | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
16 | | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
17 | | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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25 | | POSSIBILITY OF SUCH DAMAGE. |
26 | | ***********************************************************************/ |
27 | | |
28 | | #ifdef HAVE_CONFIG_H |
29 | | #include "config.h" |
30 | | #endif |
31 | | |
32 | | #include "SigProc_FIX.h" |
33 | | |
34 | | opus_int32 silk_inner_prod_aligned_scale( |
35 | | const opus_int16 *const inVec1, /* I input vector 1 */ |
36 | | const opus_int16 *const inVec2, /* I input vector 2 */ |
37 | | const opus_int scale, /* I number of bits to shift */ |
38 | | const opus_int len /* I vector lengths */ |
39 | | ) |
40 | 0 | { |
41 | 0 | opus_int i; |
42 | 0 | opus_int32 sum = 0; |
43 | 0 | for( i = 0; i < len; i++ ) { |
44 | 0 | sum = silk_ADD_RSHIFT32( sum, silk_SMULBB( inVec1[ i ], inVec2[ i ] ), scale ); |
45 | 0 | } |
46 | 0 | return sum; |
47 | 0 | } |