1b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* ------------------------------------------------------------------ 2b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 4b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * you may not use this file except in compliance with the License. 6b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * You may obtain a copy of the License at 7b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 8b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 10b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Unless required by applicable law or agreed to in writing, software 11b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * express or implied. 14b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * See the License for the specific language governing permissions 15b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * and limitations under the License. 16b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * ------------------------------------------------------------------- 17b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 18b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/**************************************************************************************** 19b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPortions of this file are derived from the following 3GPP standard: 20b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 21b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 3GPP TS 26.073 22b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Available from http://www.3gpp.org 24b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 25b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPermission to distribute, modify and use this file under the standard license 27b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberterms listed above has been obtained from the copyright holder. 28b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber****************************************************************************************/ 29b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* 30b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 31b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 32b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 33b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 34b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Filename: /audio/gsm_amr/c/include/cl_ltp.h 35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Date: 02/05/2002 37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REVISION HISTORY 40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Placed header file in the proper template format. Added 42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber parameter pOverflow for the basic math ops. 43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: 49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INCLUDE DESCRIPTION 52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber This file contains all the constant definitions and prototype definitions 54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber needed by the cl_ltp.c 55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; CONTINUE ONLY IF NOT ALREADY DEFINED 61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifndef cl_ltp_h 63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#define cl_ltp_h "$Id $" 64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES 68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "typedef.h" 70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "mode.h" 71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "pitch_fr.h" 72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "ton_stab.h" 73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*--------------------------------------------------------------------------*/ 75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus 76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberextern "C" 77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif 79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; MACROS 82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Define module specific macros here 83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; DEFINES 87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Include all pre-processor statements here. 88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; EXTERNAL VARIABLES REFERENCES 92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Declare variables used in this module but defined elsewhere 93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; SIMPLE TYPEDEF'S 97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; ENUMERATED TYPEDEF'S 101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; STRUCTURES TYPEDEF'S 105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* state variable */ 108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber typedef struct 109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Pitch_frState *pitchSt; 111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } clLtpState; 112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Function Prototype declaration 116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 cl_ltp_init(clLtpState **st); 118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* initialize one instance of the pre processing state. 119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Stores pointer to filter status struct in *st. This pointer has to 120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber be passed to cl_ltp in each call. 121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber returns 0 on success 122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 123b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 124b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 cl_ltp_reset(clLtpState *st); 125b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* reset of pre processing state (i.e. set state memory to zero) 126b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber returns 0 on success 127b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 128b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber void cl_ltp_exit(clLtpState **st); 129b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* de-initialize pre processing state (i.e. free status struct) 130b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber stores NULL in *st 131b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 132b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 133b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber void cl_ltp( 134b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber clLtpState *clSt, /* i/o : State struct */ 135b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber tonStabState *tonSt, /* i/o : State struct */ 136b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber enum Mode mode, /* i : coder mode */ 137b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 frameOffset, /* i : Offset to subframe */ 138b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 T_op[], /* i : Open loop pitch lags */ 139b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *h1, /* i : Impulse response vector Q12 */ 140b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *exc, /* i/o : Excitation vector Q0 */ 141b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 res2[], /* i/o : Long term prediction residual Q0 */ 142b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 xn[], /* i : Target vector for pitch search Q0 */ 143b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 lsp_flag, /* i : LSP resonance flag */ 144b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 xn2[], /* o : Target vector for codebook search Q0 */ 145b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 y1[], /* o : Filtered adaptive excitation Q0 */ 146b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *T0, /* o : Pitch delay (integer part) */ 147b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *T0_frac, /* o : Pitch delay (fractional part) */ 148b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *gain_pit, /* o : Pitch gain Q14 */ 149b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 g_coeff[], /* o : Correlations between xn, y1, & y2 */ 150b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 **anap, /* o : Analysis parameters */ 151b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *gp_limit, /* o : pitch gain limit */ 152b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Flag *pOverflow /* o : overflow indicator */ 153b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ); 154b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 155b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 156b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; END 157b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 158b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus 159b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 160b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif 161b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 162b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif /* _CL_LTP_H_ */ 163b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 164