1d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber/* ------------------------------------------------------------------ 2d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 4d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * you may not use this file except in compliance with the License. 6d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * You may obtain a copy of the License at 7d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 8d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 10d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Unless required by applicable law or agreed to in writing, software 11d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * express or implied. 14d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * See the License for the specific language governing permissions 15d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * and limitations under the License. 16d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * ------------------------------------------------------------------- 17d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber */ 18d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber/**************************************************************************************** 19d49b526dd2009270cb15f7fe4e70b74673950608Andreas HuberPortions of this file are derived from the following 3GPP standard: 20d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 21d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 3GPP TS 26.073 22d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Available from http://www.3gpp.org 24d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 25d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26d49b526dd2009270cb15f7fe4e70b74673950608Andreas HuberPermission to distribute, modify and use this file under the standard license 27d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huberterms listed above has been obtained from the copyright holder. 28d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber****************************************************************************************/ 29d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber/* 30d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber------------------------------------------------------------------------------ 31d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 32d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 33d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 34d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Filename: /audio/gsm_amr/c/src/include/cod_amr.h 35d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 36d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Date: 02/07/2002 37d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 38d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber------------------------------------------------------------------------------ 39d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber REVISION HISTORY 40d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 41d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Description: Added overflow flag as an element to the cod_amrState data 42d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber structure. Corrected the function prototype declaration for 43d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber cod_amr(). 44d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 45d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 46d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 47d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 48d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 49d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Description: 50d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 51d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber------------------------------------------------------------------------------ 52d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber INCLUDE DESCRIPTION 53d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 54d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber File : cod_amr.h 55d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Purpose : Main encoder routine operating on a frame basis. 56d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 57d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber------------------------------------------------------------------------------ 58d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber*/ 59d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 60d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#ifndef cod_amr_h 61d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#define cod_amr_h "$Id $" 62d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 63d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber/*---------------------------------------------------------------------------- 64d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber; INCLUDES 65d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber----------------------------------------------------------------------------*/ 66d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "typedef.h" 67d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "cnst.h" 68d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "mode.h" 69d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "lpc.h" 70d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "lsp.h" 71d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "cl_ltp.h" 72d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "gain_q.h" 73d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "p_ol_wgh.h" 74d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "ton_stab.h" 75d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "vad.h" 76d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#include "dtx_enc.h" 77d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 78d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber/*--------------------------------------------------------------------------*/ 79d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#ifdef __cplusplus 80d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huberextern "C" 81d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber{ 82d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#endif 83d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 84d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 85d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; MACROS 86d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; [Define module specific macros here] 87d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 88d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 89d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 90d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; DEFINES 91d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; [Include all pre-processor statements here.] 92d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 93d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 94d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 95d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 96d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; EXTERNAL VARIABLES REFERENCES 97d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; [Declare variables used in this module but defined elsewhere] 98d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 99d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 100d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 101d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; SIMPLE TYPEDEF'S 102d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 103d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 104d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 105d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; ENUMERATED TYPEDEF'S 106d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 107d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 108d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 109d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; STRUCTURES TYPEDEF'S 110d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 111d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*-----------------------------------------------------------* 112d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Coder constant parameters (defined in "cnst.h") * 113d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber *-----------------------------------------------------------* 114d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_WINDOW : LPC analysis window size. * 115d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_NEXT : Samples of next frame needed for autocor. * 116d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_FRAME : Frame size. * 117d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_FRAME_BY2 : Half the frame size. * 118d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_SUBFR : Sub-frame size. * 119d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * M : LPC order. * 120d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * MP1 : LPC order+1 * 121d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_TOTAL7k4 : Total size of speech buffer. * 122d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * PIT_MIN7k4 : Minimum pitch lag. * 123d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * PIT_MAX : Maximum pitch lag. * 124d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * L_INTERPOL : Length of filter for interpolation * 125d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber *-----------------------------------------------------------*/ 126d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber typedef struct 127d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber { 128d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Speech vector */ 129d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 old_speech[L_TOTAL]; 130d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *speech, *p_window, *p_window_12k2; 131d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *new_speech; /* Global variable */ 132d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 133d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Weight speech vector */ 134d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 old_wsp[L_FRAME + PIT_MAX]; 135d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *wsp; 136d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 137d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* OL LTP states */ 138d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 old_lags[5]; 139d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 ol_gain_flg[2]; 140d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 141d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Excitation vector */ 142d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 old_exc[L_FRAME + PIT_MAX + L_INTERPOL]; 143d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *exc; 144d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 145d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Zero vector */ 146d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 ai_zero[L_SUBFR + MP1]; 147d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *zero; 148d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 149d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Impulse response vector */ 150d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 *h1; 151d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 hvec[L_SUBFR * 2]; 152d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 153d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Substates */ 154d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber lpcState *lpcSt; 155d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber lspState *lspSt; 156d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber clLtpState *clLtpSt; 157d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber gainQuantState *gainQuantSt; 158d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber pitchOLWghtState *pitchOLWghtSt; 159d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber tonStabState *tonStabSt; 160d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber vadState *vadSt; 161d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Flag dtx; 162d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber dtx_encState *dtx_encSt; 163d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 164d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Filter's memory */ 165d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 mem_syn[M], mem_w0[M], mem_w[M]; 166d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 mem_err[M + L_SUBFR], *error; 167d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 168d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 sharp; 169d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 170d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* Overflow flag */ 171d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Flag overflow; 172d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 173d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber } cod_amrState; 174d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 175d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 176d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*---------------------------------------------------------------------------- 177d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 178d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ; [List function prototypes here] 179d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ----------------------------------------------------------------------------*/ 180d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* 181d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 182d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 183d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Function : cod_amr_init 184d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Purpose : Allocates memory and initializes state variables 185d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Description : Stores pointer to filter status struct in *st. This 186d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * pointer has to be passed to cod_amr in each call. 187d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * - initilize pointers to speech buffer 188d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * - initialize static pointers 189d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * - set static vectors to zero 190d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Returns : 0 on success 191d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 192d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 193d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber */ 194d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 cod_amr_init(cod_amrState **st, Flag dtx); 195d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 196d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* 197d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 198d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 199d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Function : cod_amr_reset 200d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Purpose : Resets state memory 201d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Returns : 0 on success 202d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 203d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 204d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber */ 205d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 cod_amr_reset(cod_amrState *st); 206d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 207d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /* 208d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 209d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 210d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Function : cod_amr_exit 211d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Purpose : The memory used for state memory is freed 212d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * Description : Stores NULL in *st 213d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 214d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ************************************************************************** 215d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber */ 216d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber void cod_amr_exit(cod_amrState **st); 217d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 218d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*************************************************************************** 219d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * FUNCTION: cod_amr_first 220d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 221d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * PURPOSE: Copes with look-ahead. 222d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 223d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * INPUTS: 224d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * No input argument are passed to this function. However, before 225d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * calling this function, 40 new speech data should be copied to the 226d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * vector new_speech[]. This is a global pointer which is declared in 227d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * this file (it points to the end of speech buffer minus 200). 228d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 229d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ***************************************************************************/ 230d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 231d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 cod_amr_first(cod_amrState *st, /* i/o : State struct */ 232d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 new_speech[] /* i : speech input (L_FRAME) */ 233d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ); 234d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 235d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber /*************************************************************************** 236d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * FUNCTION: cod_amr 237d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 238d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * PURPOSE: Main encoder routine. 239d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 240d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * DESCRIPTION: This function is called every 20 ms speech frame, 241d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * operating on the newly read 160 speech samples. It performs the 242d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * principle encoding functions to produce the set of encoded parameters 243d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * which include the LSP, adaptive codebook, and fixed codebook 244d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * quantization indices (addresses and gains). 245d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 246d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * INPUTS: 247d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * No input argument are passed to this function. However, before 248d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * calling this function, 160 new speech data should be copied to the 249d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * vector new_speech[]. This is a global pointer which is declared in 250d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * this file (it points to the end of speech buffer minus 160). 251d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 252d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * OUTPUTS: 253d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 254d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * ana[]: vector of analysis parameters. 255d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * synth[]: Local synthesis speech (for debugging purposes) 256d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber * 257d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ***************************************************************************/ 258d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 259d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 cod_amr(cod_amrState *st, /* i/o : State struct */ 260d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber enum Mode mode, /* i : AMR mode */ 261d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 new_speech[], /* i : speech input (L_FRAME) */ 262d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 ana[], /* o : Analysis parameters */ 263d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber enum Mode *usedMode, /* o : used mode */ 264d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber Word16 synth[] /* o : Local synthesis */ 265d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber ); 266d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 267d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 268d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#ifdef __cplusplus 269d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber} 270d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#endif 271d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 272d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber#endif /* _cod_amr_h_ */ 273d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 274d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 275d49b526dd2009270cb15f7fe4e70b74673950608Andreas Huber 276