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/d_plsf_5.c 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 04/24/2000 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Made changes based on review meeting. 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Synchronized file with UMTS version 3.2.0. Updated coding 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber template. Removed unnecessary include files. 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Updated to accept new parameter, Flag *pOverflow. 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (1) Removed "count.h" and "basic_op.h" and replaced with individual include 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber files (add.h, sub.h, etc.) 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Added #ifdef __cplusplus around extern'ed table. 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "d_plsf.h" 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "basic_op.h" 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "lsp_lsf.h" 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "reorder.h" 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "cnst.h" 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "copy.h" 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*--------------------------------------------------------------------------*/ 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; MACROS 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define module specific macros here 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; DEFINES 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Include all pre-processor statements here. Include conditional 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; compile variables also. 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* ALPHA -> 0.95 */ 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* ONE_ALPHA-> (1.0-ALPHA) */ 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ALPHA 31128 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ONE_ALPHA 1639 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; LOCAL FUNCTION DEFINITIONS 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Function Prototype declaration 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; LOCAL STORE/BUFFER/POINTER DEFINITIONS 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Variable declaration - defined here and used outside this module 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* These tables are defined in q_plsf_5_tbl.c */ 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 mean_lsf_5[]; 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 dico1_lsf_5[]; 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 dico2_lsf_5[]; 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 dico3_lsf_5[]; 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 dico4_lsf_5[]; 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber extern const Word16 dico5_lsf_5[]; 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*--------------------------------------------------------------------------*/ 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION NAME: D_plsf_5 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st = pointer to a structure of type D_plsfState 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber bfi = bad frame indicator; set to 1 if a bad frame is received (Word16) 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber indice = pointer to quantization indices of 5 submatrices (Word16) 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp1_q = pointer to the quantized 1st LSP vector (Word16) 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp2_q = pointer to the quantized 2nd LSP vector (Word16) 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp1_q points to the updated quantized 1st LSP vector 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp2_q points to the updated quantized 2nd LSP vector 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow -- Flag set when overflow occurs. 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Returns: 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return_value = 0 (int) 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Variables Used: 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None. 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Variables Needed: 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None. 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function decodes the 2 sets of LSP parameters in a frame using the 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber received quantization indices. 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None. 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber d_plsf_5.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberint D_plsf_5 ( 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber D_plsfState *st, // i/o: State variables 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 bfi, // i : bad frame indicator (set to 1 if a bad 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber frame is received) 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *indice, // i : quantization indices of 5 submatrices, Q0 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *lsp1_q, // o : quantized 1st LSP vector (M), Q15 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *lsp2_q // o : quantized 2nd LSP vector (M), Q15 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 i; 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber const Word16 *p_dico; 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 temp, sign; 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf1_r[M], lsf2_r[M]; 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf1_q[M], lsf2_q[M]; 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (bfi != 0) // if bad frame 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // use the past LSFs slightly shifted towards their mean 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // lsfi_q[i] = ALPHA*st->past_lsf_q[i] + ONE_ALPHA*mean_lsf[i]; 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_q[i] = add (mult (st->past_lsf_q[i], ALPHA), 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult (mean_lsf[i], ONE_ALPHA)); 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_q[i] = lsf1_q[i]; 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // estimate past quantized residual to be used in next frame 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // temp = mean_lsf[i] + st->past_r_q[i] * LSP_PRED_FAC_MR122; 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = add (mean_lsf[i], mult (st->past_r_q[i], 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSP_PRED_FAC_MR122)); 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i] = sub (lsf2_q[i], temp); 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // if good LSFs received 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // decode prediction residuals from 5 received indices 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico1_lsf[shl (indice[0], 2)]; 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[0] = *p_dico++; 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[1] = *p_dico++; 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[0] = *p_dico++; 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[1] = *p_dico++; 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico2_lsf[shl (indice[1], 2)]; 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[2] = *p_dico++; 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[3] = *p_dico++; 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[2] = *p_dico++; 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[3] = *p_dico++; 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sign = indice[2] & 1; 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = shr (indice[2], 1); 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico3_lsf[shl (i, 2)]; 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sign == 0) 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[4] = *p_dico++; 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[5] = *p_dico++; 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[4] = *p_dico++; 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[5] = *p_dico++; 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[4] = negate (*p_dico++); 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[5] = negate (*p_dico++); 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[4] = negate (*p_dico++); 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[5] = negate (*p_dico++); 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico4_lsf[shl (indice[3], 2)]; 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[6] = *p_dico++; 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[7] = *p_dico++; 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[6] = *p_dico++; 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[7] = *p_dico++; 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico5_lsf[shl (indice[4], 2)]; 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[8] = *p_dico++; 2484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_r[9] = *p_dico++; 2494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[8] = *p_dico++; 2504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_r[9] = *p_dico++; 2514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // Compute quantized LSFs and update the past quantized residual 2534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 2544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = add (mean_lsf[i], mult (st->past_r_q[i], 2564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSP_PRED_FAC_MR122)); 2574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_q[i] = add (lsf1_r[i], temp); 2584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_q[i] = add (lsf2_r[i], temp); 2594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i] = lsf2_r[i]; 2604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // verification that LSFs have minimum distance of LSF_GAP Hz 2644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_lsf (lsf1_q, LSF_GAP, M); 2664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_lsf (lsf2_q, LSF_GAP, M); 2674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Copy (lsf2_q, st->past_lsf_q, M); 2694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber // convert LSFs to the cosine domain 2714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Lsf_lsp (lsf1_q, lsp1_q, M); 2734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Lsf_lsp (lsf2_q, lsp2_q, M); 2744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return 0; 2764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED [optional] 2804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 2824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 2834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber HEAP MEMORY USED: x bytes 2854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK MEMORY USED: x bytes 2874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 2894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 2904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called) 2914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: (cycle count variable) = cycle count for [subroutine 2924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] 2934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CAUTION [optional] 2964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [State any special notes, constraints or cautions for users of this function] 2974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 2994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 3004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid D_plsf_5( 3024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber D_plsfState *st, /* i/o: State variables */ 3034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 bfi, /* i : bad frame indicator (set to 1 if a bad 3044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber frame is received) */ 3054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *indice, /* i : quantization indices of 5 submatrices, Q0 */ 3064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *lsp1_q, /* o : quantized 1st LSP vector (M), Q15 */ 3074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *lsp2_q, /* o : quantized 2nd LSP vector (M), Q15 */ 3084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow /* o : Flag set when overflow occurs */ 3094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 3104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 3114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 i; 3124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 temp; 3134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 sign; 3144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber const Word16 *p_dico; 3164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf1_r[M]; 3184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf2_r[M]; 3194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf1_q[M]; 3204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsf2_q[M]; 3214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (bfi != 0) /* if bad frame */ 3234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* use the past LSFs slightly shifted towards their mean */ 3254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 3274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 3294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * lsfi_q[i] = ALPHA*st->past_lsf_q[i] + 3304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ONE_ALPHA*mean_lsf[i]; 3314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 3324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 3344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 3354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_lsf_q[i], 3364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ALPHA, 3374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sign = 3404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 3414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(mean_lsf_5 + i), 3424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ONE_ALPHA, 3434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_q + i) = 3464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 3474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sign, 3484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 3494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_q + i) = *(lsf1_q + i); 3524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 3544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * estimate past quantized residual to be used in 3554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * next frame 3564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 3574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 3594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * temp = mean_lsf[i] + 3604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * st->past_r_q[i] * LSP_PRED_FAC_MR122; 3614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 3624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 3644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 3654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i], 3664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSP_PRED_FAC_MR122, 3674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 3704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 3714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(mean_lsf_5 + i), 3724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 3734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i] = 3764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sub( 3774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_q + i), 3784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 3794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 3834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* if good LSFs received */ 3844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* decode prediction residuals from 5 received indices */ 3864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 3884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shl( 3894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(indice), 3904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2, 3914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 3924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico1_lsf_5[temp]; 3944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 0) = *p_dico++; 3964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 1) = *p_dico++; 3974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 0) = *p_dico++; 3984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 1) = *p_dico++; 3994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shl( 4024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(indice + 1), 4034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2, 4044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico2_lsf_5[temp]; 4074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 2) = *p_dico++; 4094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 3) = *p_dico++; 4104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 2) = *p_dico++; 4114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 3) = *p_dico++; 4124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber sign = *(indice + 2) & 1; 4144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (*(indice + 2) < 0) 4164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = ~(~(*(indice + 2)) >> 1); 4184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 4204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i = *(indice + 2) >> 1; 4224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shl( 4264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber i, 4274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2, 4284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico3_lsf_5[temp]; 4314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (sign == 0) 4334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 4) = *p_dico++; 4354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 5) = *p_dico++; 4364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 4) = *p_dico++; 4374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 5) = *p_dico++; 4384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 4404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 4) = negate(*p_dico++); 4424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 5) = negate(*p_dico++); 4434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 4) = negate(*p_dico++); 4444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 5) = negate(*p_dico++); 4454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 4464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shl( 4494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(indice + 3), 4504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2, 4514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico4_lsf_5[temp]; 4544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 6) = *p_dico++; 4564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 7) = *p_dico++; 4574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 6) = *p_dico++; 4584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 7) = *p_dico++; 4594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shl( 4624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(indice + 4), 4634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2, 4644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber p_dico = &dico5_lsf_5[temp]; 4674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 8) = *p_dico++; 4694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + 9) = *p_dico++; 4704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 8) = *p_dico++; 4714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + 9) = *p_dico++; 4724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Compute quantized LSFs and update the past quantized 4744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber residual */ 4754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 4764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 4774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber mult( 4794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i], 4804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSP_PRED_FAC_MR122, 4814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp = 4844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 4854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(mean_lsf_5 + i), 4864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 4874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_q + i) = 4904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 4914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf1_r + i), 4924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 4934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 4944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 4954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_q + i) = 4964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber add( 4974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *(lsf2_r + i), 4984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber temp, 4994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 5004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_r_q[i] = *(lsf2_r + i); 5024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 5044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* verification that LSFs have minimum distance of LSF_GAP Hz */ 5064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_lsf( 5084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_q, 5094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSF_GAP, 5104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber M, 5114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 5124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_lsf( 5144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_q, 5154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber LSF_GAP, 5164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber M, 5174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 5184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Copy( 5204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_q, 5214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber st->past_lsf_q, 5224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber M); 5234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* convert LSFs to the cosine domain */ 5254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Lsf_lsp( 5274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf1_q, 5284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp1_q, 5294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber M, 5304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 5314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Lsf_lsp( 5334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsf2_q, 5344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp2_q, 5354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber M, 5364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pOverflow); 5374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 5384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 5394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 540