/* * Copyright (C) 2004-2010 NXP Software * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /********************************************************************************** $Author: beq07716 $ $Revision: 1000 $ $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $ ***********************************************************************************/ /********************************************************************************** INCLUDE FILES ***********************************************************************************/ #include "VectorArithmetic.h" /********************************************************************************** FUNCTION From2iToMS_16x16 ***********************************************************************************/ void From2iToMS_16x16( const LVM_INT16 *src, LVM_INT16 *dstM, LVM_INT16 *dstS, LVM_INT16 n ) { LVM_INT32 temp1,left,right; LVM_INT16 ii; for (ii = n; ii != 0; ii--) { left = (LVM_INT32)*src; src++; right = (LVM_INT32)*src; src++; /* Compute M signal*/ temp1 = (left+right)>>1; *dstM = (LVM_INT16)temp1; dstM++; /* Compute S signal*/ temp1 = (left-right)>>1; *dstS = (LVM_INT16)temp1; dstS++; } return; } /**********************************************************************************/