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: ps_channel_filtering.h 21 22------------------------------------------------------------------------------ 23 REVISION HISTORY 24 25 Who: Date: 26 Description: 27 28------------------------------------------------------------------------------ 29 INCLUDE DESCRIPTION 30 31 Header file for functions two_ch_filtering() 32 and eight_ch_filtering() 33 34------------------------------------------------------------------------------ 35*/ 36 37/*---------------------------------------------------------------------------- 38; CONTINUE ONLY IF NOT ALREADY DEFINED 39----------------------------------------------------------------------------*/ 40#ifndef PS_CHANNEL_FILTERING_H 41#define PS_CHANNEL_FILTERING_H 42 43/*---------------------------------------------------------------------------- 44; INCLUDES 45----------------------------------------------------------------------------*/ 46#include "pv_audio_type_defs.h" 47 48/*---------------------------------------------------------------------------- 49; MACROS 50; Define module specific macros here 51----------------------------------------------------------------------------*/ 52 53/*---------------------------------------------------------------------------- 54; DEFINES 55; Include all pre-processor statements here. 56----------------------------------------------------------------------------*/ 57 58/*---------------------------------------------------------------------------- 59; EXTERNAL VARIABLES REFERENCES 60; Declare variables used in this module but defined elsewhere 61----------------------------------------------------------------------------*/ 62 63/*---------------------------------------------------------------------------- 64; SIMPLE TYPEDEF'S 65----------------------------------------------------------------------------*/ 66 67/*---------------------------------------------------------------------------- 68; ENUMERATED TYPEDEF'S 69----------------------------------------------------------------------------*/ 70 71/*---------------------------------------------------------------------------- 72; STRUCTURES TYPEDEF'S 73----------------------------------------------------------------------------*/ 74 75/*---------------------------------------------------------------------------- 76; GLOBAL FUNCTION DEFINITIONS 77; Function Prototype declaration 78----------------------------------------------------------------------------*/ 79 80#ifdef __cplusplus 81extern "C" 82{ 83#endif 84 85 void two_ch_filtering(const Int32 *pQmf_r, 86 const Int32 *pQmf_i, 87 Int32 *mHybrid_r, 88 Int32 *mHybrid_i); 89 90 91 void eight_ch_filtering(const Int32 *pQmfReal, 92 const Int32 *pQmfImag, 93 Int32 *mHybridReal, 94 Int32 *mHybridImag, 95 Int32 scratch_mem[]); 96 97#ifdef __cplusplus 98} 99#endif 100 101/*---------------------------------------------------------------------------- 102; END 103----------------------------------------------------------------------------*/ 104#endif /* PS_CHANNEL_FILTERING_H */ 105