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* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001 334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* R99 Version 3.2.0 344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* REL-4 Version 4.0.0 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber******************************************************************************** 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* File : syn_filt.h 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* Purpose : Perform synthesis filtering through 1/A(z). 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber******************************************************************************** 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifndef syn_filt_h 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define syn_filt_h "$Id $" 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber******************************************************************************** 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber* INCLUDE FILES 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber******************************************************************************** 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "typedef.h" 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ******************************************************************************** 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * DEFINITION OF DATA TYPES 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ******************************************************************************** 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ******************************************************************************** 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * DECLARATION OF PROTOTYPES 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ******************************************************************************** 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void Syn_filt( 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 a[], /* (i) : a[m+1] prediction coefficients (m=10) */ 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 x[], /* (i) : input signal */ 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 y[], /* (o) : output signal */ 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 lg, /* (i) : size of filtering */ 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 mem[], /* (i/o): memory associated with this filtering. */ 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 update /* (i) : 0=no update, 1=update of memory. */ 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 84