14f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* ------------------------------------------------------------------ 24f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Copyright (C) 1998-2009 PacketVideo 34f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 44f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 54f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * you may not use this file except in compliance with the License. 64f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * You may obtain a copy of the License at 74f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 84f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 94f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Unless required by applicable law or agreed to in writing, software 114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * express or implied. 144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * See the License for the specific language governing permissions 154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * and limitations under the License. 164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ------------------------------------------------------------------- 174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/**************************************************************************************** 194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPortions of this file are derived from the following 3GPP standard: 204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3GPP TS 26.073 224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Available from http://www.3gpp.org 244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPermission to distribute, modify and use this file under the standard license 274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberterms listed above has been obtained from the copyright holder. 284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber****************************************************************************************/ 294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Pathname: ./audio/gsm-amr/c/src/dec_lag6.c 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Functions: Dec_lag6 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 01/31/2002 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (1) Updated to accept new parameter, Flag *pOverflow. 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (2) Placed file in the proper PV Software template. 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (1) Removed "count.h" and "basic_op.h" and replaced with individual include 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber files (add.h, sub.h, etc.) 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (1) Removed optimization -- mult(i, 3, pOverflow) is NOT the same as adding 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i to itself 3 times. The reason is because the mult function does a 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber right shift by 15, which will obliterate smaller numbers. 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ------------------------------------------------------------------------------ 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber index -- Word16 -- received pitch index 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pit_min -- Word16 -- minimum pitch lag 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pit_max -- Word16 -- maximum pitch lag 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i_subfr -- Word16 -- subframe flag 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0 -- Pointer to type Word16 -- integer part of pitch lag 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0 -- Pointer to type Word16 -- integer part of pitch lag 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_frac -- Pointer to type Word16 -- fractional part of pitch lag 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow -- Pointer to type Flag -- Flag set when overflow occurs 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None. 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PURPOSE: Decoding of fractional pitch lag with 1/6 resolution. 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Extract the integer and fraction parts of the pitch lag from 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the received adaptive codebook index. 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber See "Enc_lag6.c" for more details about the encoding procedure. 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber The fractional lag in 1st and 3rd subframes is encoded with 9 bits 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber while that in 2nd and 4th subframes is relatively encoded with 6 bits. 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Note that in relative encoding only 61 values are used. If the 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber decoder receives 61, 62, or 63 as the relative pitch index, it means 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber that a transmission error occurred. In this case, the pitch lag from 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber previous subframe (actually from previous frame) is used. 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dec_lag6.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK USAGE: [stack count for this module] + [variable to represent 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber stack usage for each subroutine called] 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: [stack usage variable] = stack usage for [subroutine 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] (see [filename].ext) 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber DATA MEMORY USED: x words 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PROGRAM MEMORY USED: x words 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: [cycle count equation for this module] + [variable 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called] 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: [cycle count variable] = cycle count for [subroutine 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] (see [filename].ext) 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "dec_lag6.h" 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "basic_op.h" 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; MACROS 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Define module specific macros here 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; DEFINES 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Include all pre-processor statements here. Include conditional 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; compile variables also. 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL FUNCTION DEFINITIONS 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Function Prototype declaration 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Variable declaration - defined here and used outside this module 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL FUNCTION REFERENCES 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare functions defined elsewhere and referenced in this module 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare variables used in this module but defined elsewhere 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; FUNCTION CODE 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid Dec_lag6( 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 index, /* input : received pitch index */ 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 pit_min, /* input : minimum pitch lag */ 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 pit_max, /* input : maximum pitch lag */ 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 i_subfr, /* input : subframe flag */ 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *T0, /* in/out: integer part of pitch lag */ 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *T0_frac, /* output: fractional part of pitch lag */ 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow /* o : Flag set when overflow occurs */ 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 i; 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 T0_min; 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 T0_max; 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 k; 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 w; 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (i_subfr == 0) /* if 1st or 3rd subframe */ 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (index < 463) 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* T0 = (index+5)/6 + 17 */ 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = index + 5; 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5462, 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 17, 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0 = i; 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* i = 3* (*T0) */ 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = add(i, i, pOverflow); 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = add(i, *T0, pOverflow); 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* *T0_frac = index - T0*6 + 105 */ 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber index, 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0_frac = 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 105, 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0 = 2494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 2504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber index, 2514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 368, 2524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0_frac = 0; 2554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else /* second or fourth subframe */ 2584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* find T0_min and T0_max for 2nd (or 4th) subframe */ 2604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_min = 2624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 2634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0, 2644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5, 2654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (T0_min < pit_min) 2684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_min = pit_min; 2704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_max = 2734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 2744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_min, 2754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 9, 2764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (T0_max > pit_max) 2794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_max = pit_max; 2814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_min = 2834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 2844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_max, 2854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 9, 2864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* i = (index+5)/6 - 1 */ 2904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 2924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber index, 2934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5, 2944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 2954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 2974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 2984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 2994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5462, 3004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 3034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 3044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 3054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1, 3064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0 = 3094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 3104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 3114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber T0_min, 3124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* i = 3* (*T0) */ 3154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber w = add(i, i, pOverflow); 3174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = add(i, w, pOverflow); 3184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = 3204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 3214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 3224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 3234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber k = 3264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 3274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber index, 3284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3, 3294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *T0_frac = 3324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 3334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber k, 3344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 3354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 338