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 Filename: /audio/gsm_amr/c/include/dec_amr.h 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 02/06/2002 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Update function prototype for Decoder_amr(). Include overflow 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber flag in Decode_amrState structure 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INCLUDE DESCRIPTION 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber File : dec_amr.h 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Purpose : Speech decoder routine. 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; CONTINUE ONLY IF NOT ALREADY DEFINED 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifndef DEC_AMR_H 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DEC_AMR_H "$Id $" 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "cnst.h" 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "mode.h" 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "dtx_dec.h" 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "d_plsf.h" 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "gc_pred.h" 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "ec_gains.h" 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "ph_disp.h" 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "c_g_aver.h" 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "bgnscd.h" 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "lsp_avg.h" 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "frame.h" 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*--------------------------------------------------------------------------*/ 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; MACROS 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define module specific macros here 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; DEFINES 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Include all pre-processor statements here. 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define EXC_ENERGY_HIST_LEN 9 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define LTP_GAIN_HISTORY_LEN 9 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; EXTERNAL VARIABLES REFERENCES 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Declare variables used in this module but defined elsewhere 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; SIMPLE TYPEDEF'S 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; ENUMERATED TYPEDEF'S 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; STRUCTURES TYPEDEF'S 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber typedef struct Decoder_amrState 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Excitation vector */ 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 old_exc[L_SUBFR + PIT_MAX + L_INTERPOL]; 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *exc; 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Lsp (Line spectral pairs) */ 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Word16 lsp[M]; */ /* Used by CN codec */ 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lsp_old[M]; 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Filter's memory */ 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 mem_syn[M]; 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* pitch sharpening */ 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 sharp; 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 old_T0; 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Memories for bad frame handling */ 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_bf; 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_pdf; 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 state; 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 excEnergyHist[EXC_ENERGY_HIST_LEN]; 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Variable holding received ltpLag, used in background noise and BFI */ 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 T0_lagBuff; 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* Variables for the source characteristic detector (SCD) */ 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 inBackgroundNoise; 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 voicedHangover; 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ltpGainHistory[LTP_GAIN_HISTORY_LEN]; 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Bgn_scdState background_state; 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 nodataSeed; 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Cb_gain_averageState Cb_gain_averState; 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber lsp_avgState lsp_avg_st; 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber D_plsfState lsfState; 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_pitchState ec_gain_p_st; 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_codeState ec_gain_c_st; 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber gc_predState pred_state; 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ph_dispState ph_disp_st; 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_decState dtxDecoderState; 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag overflow; 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } Decoder_amrState; 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Function Prototype declaration 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : Decoder_amr_init 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : Allocates initializes state memory 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Description : Stores pointer to filter status struct in *st. This 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * pointer has to be passed to Decoder_amr in each call. 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Returns : 0 on success 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 Decoder_amr_init(Decoder_amrState *st); 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : Decoder_amr_reset 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : Resets state memory 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Returns : 0 on success 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 Decoder_amr_reset(Decoder_amrState *st, enum Mode mode); 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : Decoder_amr 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : Speech decoder routine. 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Returns : 0 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void Decoder_amr( 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Decoder_amrState *st, /* i/o : State variables */ 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber enum Mode mode, /* i : AMR mode */ 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 parm[], /* i : vector of synthesis parameters 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (PRM_SIZE) */ 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber enum RXFrameType frame_type, /* i : received frame type */ 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 synth[], /* o : synthesis speech (L_FRAME) */ 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 A_t[] /* o : decoded LP filter in 4 subframes 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber (AZ_SIZE) */ 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; END 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif /* DEC_AMR_H_ */ 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 207