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/src/include/dtx_enc.h 35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Date: 01/29/2002 37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REVISION HISTORY 40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: 46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INCLUDE DESCRIPTION 49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber File : dtx_enc.h 51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Purpose : DTX mode computation of SID parameters 52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifndef dtx_enc_h 57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#define dtx_enc_h "$Id $" 58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES 61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "typedef.h" 63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "cnst.h" 64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "q_plsf.h" 65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "gc_pred.h" 66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "mode.h" 67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "dtx_common_def.h" 68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*--------------------------------------------------------------------------*/ 70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus 71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberextern "C" 72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif 74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; MACROS 77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; [Define module specific macros here] 78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; DEFINES 82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; [Include all pre-processor statements here.] 83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; EXTERNAL VARIABLES REFERENCES 87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; [Declare variables used in this module but defined elsewhere] 88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber extern const Word16 lsp_init_data[]; 90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; SIMPLE TYPEDEF'S 92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; ENUMERATED TYPEDEF'S 96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; STRUCTURES TYPEDEF'S 100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber typedef struct 102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 lsp_hist[M * DTX_HIST_SIZE]; 104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 log_en_hist[DTX_HIST_SIZE]; 105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 hist_ptr; 106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 log_en_index; 107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 init_lsf_vq_index; 108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 lsp_index[3]; 109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* DTX handler stuff */ 111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 dtxHangoverCount; 112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 decAnaElapsedCount; 113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } dtx_encState; 115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; [List function prototypes here] 119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : dtx_enc_init 123b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : Allocates memory and initializes state variables 124b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Description : Stores pointer to filter status struct in *st. This 125b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * pointer has to be passed to dtx_enc in each call. 126b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Returns : 0 on success 127b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 128b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 129b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 130b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 dtx_enc_init(dtx_encState **st); 131b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 132b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 133b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 134b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 135b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : dtx_enc_reset 136b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : Resets state memory 137b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Returns : 0 on success 138b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 139b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 140b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 141b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 dtx_enc_reset(dtx_encState *st); 142b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 143b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 144b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 145b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 146b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : dtx_enc_exit 147b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : The memory used for state memory is freed 148b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Description : Stores NULL in *st 149b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 150b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 151b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 152b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber void dtx_enc_exit(dtx_encState **st); 153b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 154b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 155b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 156b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 157b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : dtx_enc 158b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : 159b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Description : 160b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 161b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 162b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 163b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber void dtx_enc(dtx_encState *st, /* i/o : State struct */ 164b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 computeSidFlag, /* i : compute SID */ 165b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Q_plsfState *qSt, /* i/o : Qunatizer state struct */ 166b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber gc_predState* predState, /* i/o : State struct */ 167b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 **anap, /* o : analysis parameters */ 168b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Flag *pOverflow /* i/o : overflow indicator */ 169b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ); 170b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 171b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 172b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 173b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 174b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : dtx_buffer 175b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : handles the DTX buffer 176b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 177b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 178b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 179b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber void dtx_buffer(dtx_encState *st, /* i/o : State struct */ 180b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 lsp_new[], /* i : LSP vector */ 181b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 speech[], /* i : speech samples */ 182b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Flag *pOverflow /* i/o : overflow indicator */ 183b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ); 184b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 185b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /* 186b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 187b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 188b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Function : tx_dtx_handler 189b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Purpose : adds extra speech hangover to analyze speech on the decoding side. 190b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Description : returns 1 when a new SID analysis may be made 191b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * otherwise it adds the appropriate hangover after a sequence 192b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * with out updates of SID parameters . 193b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 194b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ************************************************************************** 195b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 196b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 tx_dtx_handler(dtx_encState *st, /* i/o : State struct */ 197b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 vad_flag, /* i : vad decision */ 198b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber enum Mode *usedMode, /* i/o : mode changed or not */ 199b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Flag *pOverflow /* i/o : overflow indicator */ 200b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ); 201b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 202b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 203b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus 204b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 205b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif 206b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 207b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif /* _dtx_enc_h_ */ 208b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 209b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 210