1/* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18/* 19 20 Pathname: qmf_filterbank_coeff.h 21 22------------------------------------------------------------------------------ 23 REVISION HISTORY 24 25 26------------------------------------------------------------------------------ 27 INCLUDE DESCRIPTION 28 29 this file declares the scalefactor bands for all sampling rates 30 31------------------------------------------------------------------------------ 32*/ 33 34 35/*---------------------------------------------------------------------------- 36; CONTINUE ONLY IF NOT ALREADY DEFINED 37----------------------------------------------------------------------------*/ 38#ifndef QMF_FILTERBANK_COEFF_H 39#define QMF_FILTERBANK_COEFF_H 40 41/*---------------------------------------------------------------------------- 42; INCLUDES 43----------------------------------------------------------------------------*/ 44#include "pv_audio_type_defs.h" 45 46/*---------------------------------------------------------------------------- 47; MACROS 48; Define module specific macros here 49----------------------------------------------------------------------------*/ 50 51/*---------------------------------------------------------------------------- 52; DEFINES 53; Include all pre-processor statements here. 54----------------------------------------------------------------------------*/ 55 56/*---------------------------------------------------------------------------- 57; EXTERNAL VARIABLES REFERENCES 58; Declare variables used in this module but defined elsewhere 59----------------------------------------------------------------------------*/ 60 61#define Qfmt(x) (Int16)(x*(((Int32)1<<15)*1.11111111111111111F) + (x>=0?0.5F:-0.5F)) 62 63 64#define Qfmt30(x) (Int32)(x*((Int32)1<<30) + (x>=0?0.5F:-0.5F)) 65#define Qfmt27(x) (Int32)(x*(((Int32)1<<27)) + (x>=0?0.5F:-0.5F)) 66 67extern const Int32 sbrDecoderFilterbankCoefficients[155]; 68 69 70extern const Int32 sbrDecoderFilterbankCoefficients_down_smpl[160]; 71extern const Int32 sbrDecoderFilterbankCoefficients_an_filt_LC[155]; 72 73#ifdef HQ_SBR 74extern const Int32 sbrDecoderFilterbankCoefficients_an_filt[155]; 75#endif 76 77/*---------------------------------------------------------------------------- 78; SIMPLE TYPEDEF'S 79----------------------------------------------------------------------------*/ 80 81/*---------------------------------------------------------------------------- 82; ENUMERATED TYPEDEF'S 83----------------------------------------------------------------------------*/ 84 85/*---------------------------------------------------------------------------- 86; STRUCTURES TYPEDEF'S 87----------------------------------------------------------------------------*/ 88 89/*---------------------------------------------------------------------------- 90; GLOBAL FUNCTION DEFINITIONS 91; Function Prototype declaration 92----------------------------------------------------------------------------*/ 93 94/*---------------------------------------------------------------------------- 95; END 96----------------------------------------------------------------------------*/ 97#endif 98 99 100