1a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* ------------------------------------------------------------------ 2a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 4a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * you may not use this file except in compliance with the License. 6a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * You may obtain a copy of the License at 7a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 8a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 10a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Unless required by applicable law or agreed to in writing, software 11a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * express or implied. 14a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * See the License for the specific language governing permissions 15a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * and limitations under the License. 16a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * ------------------------------------------------------------------- 17a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber */ 18a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/**************************************************************************************** 19a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPortions of this file are derived from the following 3GPP standard: 20a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 21a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 3GPP TS 26.073 22a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Available from http://www.3gpp.org 24a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 25a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPermission to distribute, modify and use this file under the standard license 27a30d40083856cb4edd225faf8b488fab156e5976Andreas Huberterms listed above has been obtained from the copyright holder. 28a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber****************************************************************************************/ 29a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* 30a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Pathname: ./audio/gsm-amr/c/src/lsfwt.c 31a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Functions: Lsf_wt 32a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 33a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 34a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REVISION HISTORY 35a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 36a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Updated to accept new parameter, Flag *pOverflow. Placed 37a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber file in the proper PV Software template. 38a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 39a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: 40a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 1. Eliminated unused include files. 41a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 2. Replaced array addressing by pointers 42a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 3. Eliminated math operations that unnecessary checked for 43a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber saturation, by evaluating the operands 44a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 4. Unrolled loops to speed up processing, use decrement loops 45a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 46a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 47a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 48a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Who: Date: 49a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: 50a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 51a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ------------------------------------------------------------------------------ 52a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber INPUT AND OUTPUT DEFINITIONS 53a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 54a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Inputs: 55a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber lsf -- Pointer to Word16 -- LSF vector 56a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 57a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Outputs: 58a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wf -- Pointer to Word16 -- square of weighting factors 59a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber pOverflow -- Pointer to type Flag -- Flag set when overflow occurs 60a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 61a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Returns: 62a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber None 63a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 64a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Global Variables Used: 65a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber None 66a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 67a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Local Variables Needed: 68a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber None 69a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 70a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 71a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber FUNCTION DESCRIPTION 72a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 73a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberCompute LSF weighting factors 74a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 75a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber d[i] = lsf[i+1] - lsf[i-1] 76a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 77a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber The weighting factors are approximated by two line segment 78a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 79a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber First segment passes by the following 2 points: 80a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 81a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber d[i] = 0Hz wf[i] = 3.347 82a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber d[i] = 450Hz wf[i] = 1.8 83a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 84a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Second segment passes by the following 2 points: 85a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 86a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber d[i] = 450Hz wf[i] = 1.8 87a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber d[i] = 1500Hz wf[i] = 1.0 88a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 89a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber if( d[i] < 450Hz ) 90a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wf[i] = 3.347 - ( (3.347-1.8) / (450-0)) * d[i] 91a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber else 92a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wf[i] = 1.8 - ( (1.8-1.0) / (1500-450)) * (d[i] - 450) 93a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 94a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 95a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber if( d[i] < 1843) 96a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wf[i] = 3427 - (28160*d[i])>>15 97a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber else 98a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wf[i] = 1843 - (6242*(d[i]-1843))>>15 99a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 100a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 101a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REQUIREMENTS 102a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 103a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 104a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 105a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 106a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REFERENCES 107a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 108a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber lsfwt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 109a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 110a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 111a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber PSEUDO-CODE 112a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 113a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 114a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 115a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 116a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber RESOURCES USED 117a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber When the code is written for a specific target processor the 118a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber the resources used should be documented below. 119a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 120a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber STACK USAGE: [stack count for this module] + [variable to represent 121a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber stack usage for each subroutine called] 122a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 123a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber where: [stack usage variable] = stack usage for [subroutine 124a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber name] (see [filename].ext) 125a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 126a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber DATA MEMORY USED: x words 127a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 128a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber PROGRAM MEMORY USED: x words 129a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 130a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber CLOCK CYCLES: [cycle count equation for this module] + [variable 131a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber used to represent cycle count for each subroutine 132a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber called] 133a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 134a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber where: [cycle count variable] = cycle count for [subroutine 135a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber name] (see [filename].ext) 136a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 137a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 138a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber*/ 139a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 140a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 141a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 142a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; INCLUDES 143a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 144a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "lsfwt.h" 145a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "cnst.h" 146a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 147a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 148a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; MACROS 149a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Define module specific macros here 150a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 151a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 152a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 153a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 154a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; DEFINES 155a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Include all pre-processor statements here. Include conditional 156a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; compile variables also. 157a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 158a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 159a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 160a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 161a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; LOCAL FUNCTION DEFINITIONS 162a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Function Prototype declaration 163a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 164a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 165a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 166a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 167a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 168a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Variable declaration - defined here and used outside this module 169a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 170a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 171a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 172a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; EXTERNAL FUNCTION REFERENCES 173a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Declare functions defined elsewhere and referenced in this module 174a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 175a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 176a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 177a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 178a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Declare variables used in this module but defined elsewhere 179a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 180a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 181a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 182a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 183a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; FUNCTION CODE 184a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 185a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 186a30d40083856cb4edd225faf8b488fab156e5976Andreas Hubervoid Lsf_wt( 187a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 *lsf, /* input : LSF vector */ 188a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 *wf, /* output: square of weighting factors */ 189a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Flag *pOverflow 190a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber) 191a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber{ 192a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 temp; 193a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 wgt_fct; 194a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 i; 195a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 *p_wf = wf; 196a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 *p_lsf = &lsf[0]; 197a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word16 *p_lsf_2 = &lsf[1]; 198a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 199a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber OSCL_UNUSED_ARG(pOverflow); 200a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 201a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* wf[0] = lsf[1] - 0 */ 202a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *(p_wf++) = *(p_lsf_2++); 203a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 204a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (i = 4; i != 0 ; i--) 205a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 206a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *(p_wf++) = *(p_lsf_2++) - *(p_lsf++); 207a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *(p_wf++) = *(p_lsf_2++) - *(p_lsf++); 208a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 209a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* 210a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * wf[9] = 4000 - lsf[8] 211a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber */ 212a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *(p_wf) = 16384 - *(p_lsf); 213a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 214a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber p_wf = wf; 215a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 216a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (i = 10; i != 0; i--) 217a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 218a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* 219a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * (wf[i] - 450); 220a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 1843 == 450 Hz (Q15 considering 7FFF = 8000 Hz) 221a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber */ 222a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wgt_fct = *p_wf; 223a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber temp = wgt_fct - 1843; 224a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 225a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber if (temp > 0) 226a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 227a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber temp = (Word16)(((Word32)temp * 6242) >> 15); 228a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wgt_fct = 1843 - temp; 229a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 230a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber else 231a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 232a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber temp = (Word16)(((Word32)wgt_fct * 28160) >> 15); 233a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber wgt_fct = 3427 - temp; 234a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 235a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 236a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *(p_wf++) = wgt_fct << 3; 237a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 238a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } /* for (i = 10; i != 0; i--) */ 239a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 240a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber return; 241a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 242a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber} /* Lsf_wt() */ 243