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/ph_disp.c 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Functions: 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp_reset 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp_lock 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp_release 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 04/05/2000 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Changed template used to PV coding template. First attempt at 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber optimizing C code. 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Updated file per comments gathered from Phase 2/3 review. 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Clarified grouping in the equation to calculated L_temp from the 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber product of state->prevCbGain and ONFACTPLUS1 in the ph_disp 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber function. 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Added setting of Overflow flag in inlined code. 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Synchronized file with UMTS version 3.2.0. Updated coding 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber coding template. Removed unnecessary include files. 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced basic_op.h with the header file of the math functions 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used in the file. 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Removed the functions ph_disp_init and ph_disp_exit. 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber The ph_disp related structure is no longer dynamically allocated. 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Pass in pointer to overflow flag for EPOC compatibility. 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Change code for ph_disp() function to reflect this. Remove 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inclusion of ph_disp.tab. This table will now be referenced 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber externally. 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Optimized ph_disp() to reduce clock cycle usage. Updated 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber copyright year and removed unused files in Include section. 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced OSCL mem type functions and eliminated include 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber files that now are chosen by OSCL definitions 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced "int" and/or "char" with defined types. 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Added proper casting (Word32) to some left shifting operations 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Changed round function name to pv_round to avoid conflict with 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber round function in C standard library. 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber MODULE DESCRIPTION 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This file contains the function that performs adaptive phase dispersion of 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the excitation signal. The phase dispersion initialization, reset, and 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber exit functions are included in this file, as well as, the phase dispersion 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lock and release functions. 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "ph_disp.h" 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "basic_op.h" 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "cnst.h" 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; MACROS 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Define module specific macros here 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; DEFINES 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Include all pre-processor statements here. Include conditional 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; compile variables also. 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL FUNCTION DEFINITIONS 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Function Prototype declaration 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL VARIABLE DEFINITIONS 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Variable declaration - defined here and used outside this module 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION NAME: ph_disp_reset 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state = pointer to a structure of type ph_dispState 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Structure pointed to by state is initialized to zeros 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return_value = 0, if reset was successful; -1, otherwise (int) 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function resets the variables used by the phase dispersion function. 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberint ph_disp_reset (ph_dispState *state) 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 i; 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state == (ph_dispState *) NULL){ 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber fprint(stderr, "ph_disp_reset: invalid parameter\n"); 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return -1; 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i=0; i<PHDGAINMEMSIZE; i++) 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[i] = 0; 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevState = 0; 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevCbGain = 0; 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 0; 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset = 0; // assume no onset in start 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return 0; 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED [optional] 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber HEAP MEMORY USED: x bytes 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK MEMORY USED: x bytes 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called) 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: (cycle count variable) = cycle count for [subroutine 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CAUTION [optional] 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [State any special notes, constraints or cautions for users of this function] 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberWord16 ph_disp_reset(ph_dispState *state) 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 i; 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state == (ph_dispState *) NULL) 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* fprint(stderr, "ph_disp_reset: invalid parameter\n"); */ 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return(-1); 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < PHDGAINMEMSIZE; i++) 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[i] = 0; 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevState = 0; 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevCbGain = 0; 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 0; 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset = 0; /* assume no onset in start */ 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return(0); 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/****************************************************************************/ 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION NAME: ph_disp_lock 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state = pointer to a structure of type ph_dispState 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lockFull field of the structure pointed to by state is set to 1 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 2484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 2504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 2514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 2544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function sets the lockFull flag to indicate a lock condition. 2564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 2594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 2614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 2644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 2664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 2694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp_lock (ph_dispState *state) 2714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 2724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 1; 2734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 2744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED [optional] 2784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 2804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 2814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber HEAP MEMORY USED: x bytes 2834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK MEMORY USED: x bytes 2854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 2874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 2884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called) 2894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: (cycle count variable) = cycle count for [subroutine 2904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] 2914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CAUTION [optional] 2944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [State any special notes, constraints or cautions for users of this function] 2954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 2984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp_lock(ph_dispState *state) 3004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 3014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 1; 3024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 3044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 3054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/****************************************************************************/ 3074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 3094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION NAME: ph_disp_release 3114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 3134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 3154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state = pointer to a structure of type ph_dispState 3164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 3184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lockFull field of the structure pointed to by state is set to 0 3194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 3214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 3224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 3244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 3254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 3274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 3284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 3314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function clears the lockFull flag to indicate an unlocked state. 3334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 3364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 3384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 3414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 3434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 3464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp_release (ph_dispState *state) 3484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 3494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 0; 3504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 3514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 3524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED [optional] 3554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 3574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 3584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber HEAP MEMORY USED: x bytes 3604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK MEMORY USED: x bytes 3624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 3644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 3654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called) 3664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: (cycle count variable) = cycle count for [subroutine 3674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] 3684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CAUTION [optional] 3714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [State any special notes, constraints or cautions for users of this function] 3724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 3754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp_release(ph_dispState *state) 3774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 3784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->lockFull = 0; 3794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 3814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 3824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/****************************************************************************/ 3844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 3864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION NAME: ph_disp 3884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 3894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 3904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 3924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state = pointer to a structure of type ph_dispState 3934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mode = codec mode (enum Mode) 3944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber x = LTP excitation signal buffer (Word16) 3954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber cbGain = codebook gain (Word16) 3964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ltpGain = LTP gain (Word16) 3974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno = innovation buffer (Word16) 3984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pitch_fac = pitch factor used to scale the LTP excitation (Word16) 3994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp_shift = shift factor applied to sum of scaled LTP excitation and 4004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber innovation before rounding (Word16) 4014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow = pointer to overflow indicator (Flag) 4024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 4044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber structure pointed to by state contains the updated gainMem array, 4054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber prevState, prevCbGain, and onset fields 4064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber x buffer contains the new excitation signal 4074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno buffer contains the new innovation signal 4084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow -> 1 if there is overflow 4094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 4114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 4124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 4144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 4154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 4174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 4184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 4204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 4214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function performs adaptive phase dispersion, i.e., forming of total 4234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber excitation for the synthesis part of the decoder. 4244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 4264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 4274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 4294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 4314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 4324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 4344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 4364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 4374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp ( 4394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_dispState *state, // i/o : State struct 4404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber enum Mode mode, // i : codec mode 4414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 x[], // i/o Q0 : in: LTP excitation signal 4424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // out: total excitation signal 4434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 cbGain, // i Q1 : Codebook gain 4444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ltpGain, // i Q14 : LTP gain 4454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 inno[], // i/o Q13 : Innovation vector (Q12 for 12.2) 4464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 pitch_fac, // i Q14 : pitch factor used to scale the 4474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LTP excitation (Q13 for 12.2) 4484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 tmp_shift // i Q0 : shift factor applied to sum of 4494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber scaled LTP ex & innov. before 4504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber rounding 4514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 4524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 4534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 i, i1; 4544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 tmp1; 4554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_temp; 4564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 impNr; // indicator for amount of disp./filter used 4574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 inno_sav[L_SUBFR]; 4594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ps_poss[L_SUBFR]; 4604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 j, nze, nPulse, ppos; 4614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber const Word16 *ph_imp; // Pointer to phase dispersion filter 4624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Update LTP gain memory 4644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = PHDGAINMEMSIZE-1; i > 0; i--) 4654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[i] = state->gainMem[i-1]; 4674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[0] = ltpGain; 4694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // basic adaption of phase dispersion 4714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(ltpGain, PHDTHR2LTP) < 0) { // if (ltpGain < 0.9) 4724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(ltpGain, PHDTHR1LTP) > 0) 4734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { // if (ltpGain > 0.6 4744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 1; // medium dispersion 4754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 4774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; // maximum dispersion 4794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 4824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 2; // no dispersion 4844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // onset indicator 4874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // onset = (cbGain > onFact * cbGainMem[0]) 4884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = pv_round(L_shl(L_mult(state->prevCbGain, ONFACTPLUS1), 2)); 4894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(cbGain, tmp1) > 0) 4904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset = ONLENGTH; 4924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 4944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->onset > 0) 4964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset = sub (state->onset, 1); 4984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // if not onset, check ltpGain buffer and use max phase dispersion if 5024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber half or more of the ltpGain-parameters say so 5034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->onset == 0) 5044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Check LTP gain memory and set filter accordingly 5064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i1 = 0; 5074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < PHDGAINMEMSIZE; i++) 5084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(state->gainMem[i], PHDTHR1LTP) < 0) 5104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i1 = add (i1, 1); 5124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(i1, 2) > 0) 5154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; 5174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Restrict decrease in phase dispersion to one step if not onset 5214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((sub(impNr, add(state->prevState, 1)) > 0) && (state->onset == 0)) 5224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = sub (impNr, 1); 5244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // if onset, use one step less phase dispersion 5264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if((sub(impNr, 2) < 0) && (state->onset > 0)) 5274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = add (impNr, 1); 5294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // disable for very low levels 5324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if(sub(cbGain, 10) < 0) 5334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 2; 5354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if(sub(state->lockFull, 1) == 0) 5384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; 5404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // update static memory 5434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevState = impNr; 5444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevCbGain = cbGain; 5454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // do phase dispersion for all modes but 12.2 and 7.4; 5474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // don't modify the innovation if impNr >=2 (= no phase disp) 5484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub(mode, MR122) != 0 && 5494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub(mode, MR102) != 0 && 5504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub(mode, MR74) != 0 && 5514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub(impNr, 2) < 0) 5524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // track pulse positions, save innovation, 5544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber and initialize new innovation 5554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber nze = 0; 5564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < L_SUBFR; i++) 5574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (inno[i] != 0) 5594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ps_poss[nze] = i; 5614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber nze = add (nze, 1); 5624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno_sav[i] = inno[i]; 5644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno[i] = 0; 5654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Choose filter corresponding to codec mode and dispersion criterium 5674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sub (mode, MR795) == 0) 5684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (impNr == 0) 5704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_low_MR795; 5724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 5744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_mid_MR795; 5764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 5794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (impNr == 0) 5814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_low; 5834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 5854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_mid; 5874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Do phase dispersion of innovation 5914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (nPulse = 0; nPulse < nze; nPulse++) 5924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ppos = ps_poss[nPulse]; 5944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // circular convolution with impulse response 5964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber j = 0; 5974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = ppos; i < L_SUBFR; i++) 5984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 5994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // inno[i1] += inno_sav[ppos] * ph_imp[i1-ppos] 6004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = mult(inno_sav[ppos], ph_imp[j++]); 6014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno[i] = add(inno[i], tmp1); 6024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 6034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ppos; i++) 6054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 6064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // inno[i] += inno_sav[ppos] * ph_imp[L_SUBFR-ppos+i] 6074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = mult(inno_sav[ppos], ph_imp[j++]); 6084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber inno[i] = add(inno[i], tmp1); 6094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 6104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 6114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 6124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // compute total excitation for synthesis part of decoder 6144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // (using modified innovation if phase dispersion is active) 6154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < L_SUBFR; i++) 6164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 6174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // x[i] = gain_pit*x[i] + cbGain*code[i]; 6184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_mult ( x[i], pitch_fac); 6194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // 12.2: Q0 * Q13 6204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // 7.4: Q0 * Q14 6214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_mac (L_temp, inno[i], cbGain); 6224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // 12.2: Q12 * Q1 6234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // 7.4: Q13 * Q1 6244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_shl (L_temp, tmp_shift); // Q16 6254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber x[i] = pv_round (L_temp); 6264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 6274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 6294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 6304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 6324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED [optional] 6334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 6354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 6364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber HEAP MEMORY USED: x bytes 6384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK MEMORY USED: x bytes 6404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 6424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 6434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called) 6444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: (cycle count variable) = cycle count for [subroutine 6454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] 6464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 6484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CAUTION [optional] 6494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [State any special notes, constraints or cautions for users of this function] 6504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 6524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 6534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid ph_disp( 6554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_dispState *state, /* i/o : State struct */ 6564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber enum Mode mode, /* i : codec mode */ 6574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 x[], /* i/o Q0 : in: LTP excitation signal */ 6584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* out: total excitation signal */ 6594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 cbGain, /* i Q1 : Codebook gain */ 6604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ltpGain, /* i Q14 : LTP gain */ 6614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 inno[], /* i/o Q13 : Innovation vector (Q12 for 12.2) */ 6624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 pitch_fac, /* i Q14 : pitch factor used to scale the 6634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LTP excitation (Q13 for 12.2) */ 6644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 tmp_shift, /* i Q0 : shift factor applied to sum of 6654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber scaled LTP ex & innov. before 6664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber rounding */ 6674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow /* i/o : oveflow indicator */ 6684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 6694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 6704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 i, i1; 6714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 tmp1; 6724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_temp; 6734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_temp2; 6744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 impNr; /* indicator for amount of disp./filter used */ 6754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 inno_sav[L_SUBFR]; 6774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ps_poss[L_SUBFR]; 6784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 nze, nPulse; 6794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ppos; 6804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber const Word16 *ph_imp; /* Pointer to phase dispersion filter */ 6814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *p_inno; 6834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *p_inno_sav; 6844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *p_x; 6854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber const Word16 *p_ph_imp; 6864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 c_inno_sav; 6874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 6884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Update LTP gain memory */ 6894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Unrolled FOR loop below since PHDGAINMEMSIZE is assumed to stay */ 6904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* the same. */ 6914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* for (i = PHDGAINMEMSIZE-1; i > 0; i--) */ 6924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* { */ 6934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* state->gainMem[i] = state->gainMem[i-1]; */ 6944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* } */ 6954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[4] = state->gainMem[3]; 6964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[3] = state->gainMem[2]; 6974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[2] = state->gainMem[1]; 6984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[1] = state->gainMem[0]; 6994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->gainMem[0] = ltpGain; 7004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* basic adaption of phase dispersion */ 7024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (ltpGain < PHDTHR2LTP) /* if (ltpGain < 0.9) */ 7044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (ltpGain > PHDTHR1LTP) 7064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { /* if (ltpGain > 0.6 */ 7074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 1; /* medium dispersion */ 7084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 7104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; /* maximum dispersion */ 7124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 7154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 2; /* no dispersion */ 7174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* onset indicator */ 7204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* onset = (cbGain > onFact * cbGainMem[0]) */ 7214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = ((Word32) state->prevCbGain * ONFACTPLUS1) << 1; 7234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* (L_temp << 2) calculation with saturation check */ 7254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_temp > (Word32) 0X1fffffffL) 7264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *pOverflow = 1; 7284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = MAX_32; 7294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else if (L_temp < (Word32) 0xe0000000L) 7314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *pOverflow = 1; 7334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = MIN_32; 7344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 7364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp <<= 2; 7384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = pv_round(L_temp, pOverflow); 7414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (cbGain > tmp1) 7434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset = ONLENGTH; 7454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 7474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->onset > 0) 7504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->onset -= 1; 7524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* if not onset, check ltpGain buffer and use max phase dispersion if 7564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber half or more of the ltpGain-parameters say so */ 7574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->onset == 0) 7584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Check LTP gain memory and set filter accordingly */ 7604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i1 = 0; 7614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < PHDGAINMEMSIZE; i++) 7624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->gainMem[i] < PHDTHR1LTP) 7644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i1 += 1; 7664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (i1 > 2) 7704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; 7724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Restrict decrease in phase dispersion to one step if not onset */ 7754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((impNr > ((state->prevState) + 1)) && (state->onset == 0)) 7764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr -= 1; 7784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* if onset, use one step less phase dispersion */ 7814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((impNr < 2) && (state->onset > 0)) 7824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr += 1; 7844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* disable for very low levels */ 7874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (cbGain < 10) 7884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 2; 7904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (state->lockFull == 1) 7934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 7944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber impNr = 0; 7954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 7964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 7974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* update static memory */ 7984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevState = impNr; 7994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber state->prevCbGain = cbGain; 8004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* do phase dispersion for all modes but 12.2 and 7.4; 8024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber don't modify the innovation if impNr >=2 (= no phase disp) */ 8034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((mode != MR122) && (mode != MR102) && (mode != MR74) && (impNr < 2)) 8044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* track pulse positions, save innovation, 8064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber and initialize new innovation */ 8074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber nze = 0; 8084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno = &inno[0]; 8094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno_sav = &inno_sav[0]; 8104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < L_SUBFR; i++) 8124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (*(p_inno) != 0) 8144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ps_poss[nze] = i; 8164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber nze += 1; 8174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(p_inno_sav++) = *(p_inno); 8194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(p_inno++) = 0; 8204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Choose filter corresponding to codec mode and dispersion criterium */ 8234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (mode == MR795) 8244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (impNr == 0) 8264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_low_MR795; 8284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 8304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_mid_MR795; 8324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 8354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (impNr == 0) 8374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_low; 8394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 8414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_imp = ph_imp_mid; 8434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Do phase dispersion of innovation */ 8474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (nPulse = 0; nPulse < nze; nPulse++) 8484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ppos = ps_poss[nPulse]; 8504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* circular convolution with impulse response */ 8524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber c_inno_sav = inno_sav[ppos]; 8534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno = &inno[ppos]; 8544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_ph_imp = ph_imp; 8554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = ppos; i < L_SUBFR; i++) 8574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* inno[i1] += inno_sav[ppos] * ph_imp[i1-ppos] */ 8594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = ((Word32) c_inno_sav * *(p_ph_imp++)) >> 15; 8604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = (Word16) L_temp; 8614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(p_inno) = add(*(p_inno), tmp1, pOverflow); 8624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno += 1; 8634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno = &inno[0]; 8664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ppos; i++) 8684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* inno[i] += inno_sav[ppos] * ph_imp[L_SUBFR-ppos+i] */ 8704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = ((Word32) c_inno_sav * *(p_ph_imp++)) >> 15; 8714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp1 = (Word16) L_temp; 8724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(p_inno) = add(*(p_inno), tmp1, pOverflow); 8734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno += 1; 8744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* compute total excitation for synthesis part of decoder 8794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (using modified innovation if phase dispersion is active) */ 8804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_inno = &inno[0]; 8814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_x = &x[0]; 8824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < L_SUBFR; i++) 8844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 8854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* x[i] = gain_pit*x[i] + cbGain*code[i]; */ 8864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_mult(x[i], pitch_fac, pOverflow); 8874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 12.2: Q0 * Q13 */ 8884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 7.4: Q0 * Q14 */ 8894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp2 = ((Word32) * (p_inno++) * cbGain) << 1; 8904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_add(L_temp, L_temp2, pOverflow); 8914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 12.2: Q12 * Q1 */ 8924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 7.4: Q13 * Q1 */ 8934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_temp = L_shl(L_temp, tmp_shift, pOverflow); /* Q16 */ 8944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(p_x++) = pv_round(L_temp, pOverflow); 8954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 8964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 8974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 8984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 899