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/src/include/ec_gains.h 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 01/28/2002 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INCLUDE DESCRIPTION 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber File : ec_gains.c 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Purpose: : Error concealment for pitch and codebook gains 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifndef _EC_GAINS_H_ 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define _EC_GAINS_H_ 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ec_gains_h "$Id $" 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "gc_pred.h" 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*--------------------------------------------------------------------------*/ 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; MACROS 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; [Define module specific macros here] 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; DEFINES 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; [Include all pre-processor statements here.] 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; EXTERNAL VARIABLES REFERENCES 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; [Declare variables used in this module but defined elsewhere] 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; SIMPLE TYPEDEF'S 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; ENUMERATED TYPEDEF'S 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; STRUCTURES TYPEDEF'S 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber typedef struct 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 pbuf[5]; 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 past_gain_pit; 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_gp; 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } ec_gain_pitchState; 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber typedef struct 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 gbuf[5]; 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 past_gain_code; 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_gc; 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } ec_gain_codeState; 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; [List function prototypes here] 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_code_reset 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : Resets state memory 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ec_gain_code_reset( 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_codeState *state 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_code 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : conceal the codebook gain 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Call this function only in BFI (instead of normal gain 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * decoding function) 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void ec_gain_code( 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_codeState *st, /* i/o : State struct */ 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber gc_predState *pred_state, /* i/o : MA predictor state */ 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 state, /* i : state of the state machine */ 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *gain_code, /* o : decoded innovation gain */ 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_code_update 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : update the codebook gain concealment state; 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * limit gain_code if the previous frame was bad 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Call this function always after decoding (or concealing) 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * the gain 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void ec_gain_code_update( 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_codeState *st, /* i/o : State struct */ 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 bfi, /* i : flag: frame is bad */ 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_bf, /* i : flag: previous frame was bad */ 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *gain_code, /* i/o : decoded innovation gain */ 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function: ec_gain_pitch_reset 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose: Resets state memory 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 ec_gain_pitch_reset( 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_pitchState *state 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_pitch_exit 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : The memory used for state memory is freed 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void ec_gain_pitch_exit( 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_pitchState **state 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_pitch 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : conceal the pitch gain 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Call this function only in BFI (instead of normal gain 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * decoding function) 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void ec_gain_pitch( 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_pitchState *st, /* i/o : state variables */ 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 state, /* i : state of the state machine */ 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *gain_pitch, /* o : pitch gain (Q14) */ 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Function : ec_gain_pitch_update 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Purpose : update the pitch gain concealment state; 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * limit gain_pitch if the previous frame was bad 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Call this function always after decoding (or concealing) 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * the gain 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void ec_gain_pitch_update( 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ec_gain_pitchState *st, /* i/o : state variables */ 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 bfi, /* i : flag: frame is bad */ 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 prev_bf, /* i : flag: previous frame was bad */ 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 *gain_pitch, /* i/o : pitch gain */ 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif /* _EC_GAINS_H_ */ 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 210