1*a58d3d2aSXin Li /***********************************************************************
2*a58d3d2aSXin Li Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without
4*a58d3d2aSXin Li modification, are permitted provided that the following conditions
5*a58d3d2aSXin Li are met:
6*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright notice,
7*a58d3d2aSXin Li this list of conditions and the following disclaimer.
8*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright
9*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the
10*a58d3d2aSXin Li documentation and/or other materials provided with the distribution.
11*a58d3d2aSXin Li - Neither the name of Internet Society, IETF or IETF Trust, nor the
12*a58d3d2aSXin Li names of specific contributors, may be used to endorse or promote
13*a58d3d2aSXin Li products derived from this software without specific prior written
14*a58d3d2aSXin Li permission.
15*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16*a58d3d2aSXin Li AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*a58d3d2aSXin Li IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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24*a58d3d2aSXin Li ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26*a58d3d2aSXin Li ***********************************************************************/
27*a58d3d2aSXin Li
28*a58d3d2aSXin Li #ifdef HAVE_CONFIG_H
29*a58d3d2aSXin Li #include "config.h"
30*a58d3d2aSXin Li #endif
31*a58d3d2aSXin Li
32*a58d3d2aSXin Li #include "SigProc_FIX.h"
33*a58d3d2aSXin Li
silk_inner_prod_aligned_scale(const opus_int16 * const inVec1,const opus_int16 * const inVec2,const opus_int scale,const opus_int len)34*a58d3d2aSXin Li opus_int32 silk_inner_prod_aligned_scale(
35*a58d3d2aSXin Li const opus_int16 *const inVec1, /* I input vector 1 */
36*a58d3d2aSXin Li const opus_int16 *const inVec2, /* I input vector 2 */
37*a58d3d2aSXin Li const opus_int scale, /* I number of bits to shift */
38*a58d3d2aSXin Li const opus_int len /* I vector lengths */
39*a58d3d2aSXin Li )
40*a58d3d2aSXin Li {
41*a58d3d2aSXin Li opus_int i;
42*a58d3d2aSXin Li opus_int32 sum = 0;
43*a58d3d2aSXin Li for( i = 0; i < len; i++ ) {
44*a58d3d2aSXin Li sum = silk_ADD_RSHIFT32( sum, silk_SMULBB( inVec1[ i ], inVec2[ i ] ), scale );
45*a58d3d2aSXin Li }
46*a58d3d2aSXin Li return sum;
47*a58d3d2aSXin Li }
48