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media/libopus/silk/fixed/regularize_correlations_FIX.c@b8a032363ba2 (annotated)

media/libopus/silk/fixed/regularize_correlations_FIX.c

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/***********************************************************************
michael@0	2	Copyright (c) 2006-2011, Skype Limited. All rights reserved.
michael@0	3	Redistribution and use in source and binary forms, with or without
michael@0	4	modification, are permitted provided that the following conditions
michael@0	5	are met:
michael@0	6	- Redistributions of source code must retain the above copyright notice,
michael@0	7	this list of conditions and the following disclaimer.
michael@0	8	- Redistributions in binary form must reproduce the above copyright
michael@0	9	notice, this list of conditions and the following disclaimer in the
michael@0	10	documentation and/or other materials provided with the distribution.
michael@0	11	- Neither the name of Internet Society, IETF or IETF Trust, nor the
michael@0	12	names of specific contributors, may be used to endorse or promote
michael@0	13	products derived from this software without specific prior written
michael@0	14	permission.
michael@0	15	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
michael@0	16	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0	17	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0	18	ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0	19	LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0	20	CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0	21	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0	22	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0	23	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0	24	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
michael@0	25	POSSIBILITY OF SUCH DAMAGE.
michael@0	26	***********************************************************************/
michael@0	27
michael@0	28	#ifdef HAVE_CONFIG_H
michael@0	29	#include "config.h"
michael@0	30	#endif
michael@0	31
michael@0	32	#include "main_FIX.h"
michael@0	33
michael@0	34	/* Add noise to matrix diagonal */
michael@0	35	void silk_regularize_correlations_FIX(
michael@0	36	opus_int32 *XX, /* I/O Correlation matrices */
michael@0	37	opus_int32 *xx, /* I/O Correlation values */
michael@0	38	opus_int32 noise, /* I Noise to add */
michael@0	39	opus_int D /* I Dimension of XX */
michael@0	40	)
michael@0	41	{
michael@0	42	opus_int i;
michael@0	43	for( i = 0; i < D; i++ ) {
michael@0	44	matrix_ptr( &XX[ 0 ], i, i, D ) = silk_ADD32( matrix_ptr( &XX[ 0 ], i, i, D ), noise );
michael@0	45	}
michael@0	46	xx[ 0 ] += noise;
michael@0	47	}