12228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 22228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* ----------------------------------------------------------------------------------------------------------- 32228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectSoftware License for The Fraunhofer FDK AAC Codec Library for Android 42228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 54f0d97057c5c640b25518358886f8c47da9fc052Jean-Michel Trivi� Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F�rderung der angewandten Forschung e.V. 62228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project All rights reserved. 72228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 82228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1. INTRODUCTION 92228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements 102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. 112228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is intended to be used on a wide variety of Android devices. 122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 132228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual 142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectaudio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by 152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindependent studies and is widely deployed. AAC has been standardized by ISO and IEC as part 162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof the MPEG specifications. 172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 182228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectPatent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) 192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmay be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners 202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindividually for the purpose of encoding or decoding bit streams in products that are compliant with 212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license 222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthese patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec 232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware may already be covered under those patent licenses when it is used for those licensed purposes only. 242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 252228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCommercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, 262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectare also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional 272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectapplications information and documentation. 282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project2. COPYRIGHT LICENSE 302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 312228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectRedistribution and use in source and binary forms, with or without modification, are permitted without 322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectpayment of copyright license fees provided that you satisfy the following conditions: 332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 342228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in redistributions of the FDK AAC Codec or 352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectyour modifications thereto in source code form. 362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 372228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in the documentation and/or other materials 382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprovided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. 392228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must make available free of charge copies of the complete source code of the FDK AAC Codec and your 402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmodifications thereto to recipients of copies in binary form. 412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 422228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe name of Fraunhofer may not be used to endorse or promote products derived from this library without 432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprior written permission. 442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 452228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec 462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware or your modifications thereto. 472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 482228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYour modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software 492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectand the date of any change. For modified versions of the FDK AAC Codec, the term 502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term 512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." 522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project3. NO PATENT LICENSE 542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 552228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectNO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, 562228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with 572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectrespect to this software. 582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 592228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized 602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectby appropriate patent licenses. 612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project4. DISCLAIMER 632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 642228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors 652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties 662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 672228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, 682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectincluding but not limited to procurement of substitute goods or services; loss of use, data, or profits, 692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projector business interruption, however caused and on any theory of liability, whether in contract, strict 702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectliability, or tort (including negligence), arising in any way out of the use of this software, even if 712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectadvised of the possibility of such damage. 722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project5. CONTACT INFORMATION 742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 752228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectFraunhofer Institute for Integrated Circuits IIS 762228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAttention: Audio and Multimedia Departments - FDK AAC LL 772228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAm Wolfsmantel 33 782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project91058 Erlangen, Germany 792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectwww.iis.fraunhofer.de/amm 812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectamm-info@iis.fraunhofer.de 822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project----------------------------------------------------------------------------------------------------------- */ 832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*! 852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project \file qmf.h 862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project \brief Complex qmf analysis/synthesis 872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project \author Markus Werner 882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project*/ 902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#ifndef __QMF_H 912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define __QMF_H 922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "common_fix.h" 962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "FDK_tools_rom.h" 972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "dct.h" 982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* 1002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Filter coefficient type definition 1012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 1022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#ifdef QMF_DATA_16BIT 1032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_QMF FIXP_SGL 1042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FX_DBL2FX_QMF FX_DBL2FX_SGL 1052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FX_QMF2FX_DBL FX_SGL2FX_DBL 1062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QFRACT_BITS FRACT_BITS 1072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#else 1082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_QMF FIXP_DBL 1092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FX_DBL2FX_QMF 1102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FX_QMF2FX_DBL 1112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QFRACT_BITS DFRACT_BITS 1122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif 1132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* ARM neon optimized QMF analysis filter requires 32 bit input. 1152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Implemented for RVCT only, currently disabled. See src/arm/qmf_arm.cpp:45 */ 1162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_QAS FIXP_PCM 1172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QAS_BITS SAMPLE_BITS 1182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#ifdef QMFSYN_STATES_16BIT 1202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_QSS FIXP_SGL 1212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QSS_BITS FRACT_BITS 1222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#else 1232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_QSS FIXP_DBL 1242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QSS_BITS DFRACT_BITS 1252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif 1262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Flags for QMF intialization */ 1282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Low Power mode flag */ 1292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_LP 1 1302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Filter is not symetric. This flag is set internally in the QMF initialization as required. */ 1312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_NONSYMMETRIC 2 1322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Complex Low Delay Filter Bank (or std symmetric filter bank) */ 1332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_CLDFB 4 1342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Flag indicating that the states should be kept. */ 1352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_KEEP_STATES 8 1362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Complex Low Delay Filter Bank used in MPEG Surround Encoder */ 1372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_MPSLDFB 16 1382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* Complex Low Delay Filter Bank used in MPEG Surround Encoder allows a optimized calculation of the modulation in qmfForwardModulationHQ() */ 1392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define QMF_FLAG_MPSLDFB_OPTIMIZE_MODULATION 32 1403a0a695565d1d360f9a82173469c8ef858bc08a0Jean-Michel Trivi/* Flag to indicate HE-AAC down-sampled SBR mode (decoder) -> adapt analysis post twiddling */ 1413a0a695565d1d360f9a82173469c8ef858bc08a0Jean-Michel Trivi#define QMF_FLAG_DOWNSAMPLED 64 1422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projecttypedef struct 1452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int lb_scale; /*!< Scale of low band area */ 1472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int ov_lb_scale; /*!< Scale of adjusted overlap low band area */ 1482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int hb_scale; /*!< Scale of high band area */ 1492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int ov_hb_scale; /*!< Scale of adjusted overlap high band area */ 1502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} QMF_SCALE_FACTOR; 1512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstruct QMF_FILTER_BANK 1532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_PFT *p_filter; /*!< Pointer to filter coefficients */ 1552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project void *FilterStates; /*!< Pointer to buffer of filter states 1572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_PCM in analyse and 1582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL in synthesis filter */ 1592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int FilterSize; /*!< Size of prototype filter. */ 1602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_QTW *t_cos; /*!< Modulation tables. */ 1612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_QTW *t_sin; 1622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int filterScale; /*!< filter scale */ 1632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int no_channels; /*!< Total number of channels (subbands) */ 1652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int no_col; /*!< Number of time slots */ 1662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int lsb; /*!< Top of low subbands */ 1672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int usb; /*!< Top of high subbands */ 1682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int outScalefactor; /*!< Scale factor of output data (syn only) */ 1702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL outGain; /*!< Gain output data (syn only) (init with 0x80000000 to ignore) */ 1712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT flags; /*!< flags */ 1732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR p_stride; /*!< Stride Factor of polyphase filters */ 1742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 1762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projecttypedef struct QMF_FILTER_BANK *HANDLE_QMF_FILTER_BANK; 1782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid 1802228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfAnalysisFiltering( HANDLE_QMF_FILTER_BANK anaQmf, /*!< Handle of Qmf Analysis Bank */ 1812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF **qmfReal, /*!< Pointer to real subband slots */ 1822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF **qmfImag, /*!< Pointer to imag subband slots */ 1832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project QMF_SCALE_FACTOR *scaleFactor, /*!< Scale factors of QMF data */ 1842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM *timeIn, /*!< Time signal */ 1852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int stride, /*!< Stride factor of audio data */ 1862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *pWorkBuffer /*!< pointer to temporal working buffer */ 1872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 1882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid 1902228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfSynthesisFiltering( HANDLE_QMF_FILTER_BANK synQmf, /*!< Handle of Qmf Synthesis Bank */ 1912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF **QmfBufferReal, /*!< Pointer to real subband slots */ 1922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF **QmfBufferImag, /*!< Pointer to imag subband slots */ 1932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const QMF_SCALE_FACTOR *scaleFactor, /*!< Scale factors of QMF data */ 1942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int ov_len, /*!< Length of band overlap */ 1952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT_PCM *timeOut, /*!< Time signal */ 1962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int stride, /*!< Stride factor of audio data */ 1972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *pWorkBuffer /*!< pointer to temporal working buffer */ 1982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 1992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectint 2012228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfInitAnalysisFilterBank( HANDLE_QMF_FILTER_BANK h_Qmf, /*!< QMF Handle */ 2022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QAS *pFilterStates, /*!< Pointer to filter state buffer */ 2032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int noCols, /*!< Number of time slots */ 2042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int lsb, /*!< Number of lower bands */ 2052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int usb, /*!< Number of upper bands */ 2062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int no_channels, /*!< Number of critically sampled bands */ 2072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int flags); /*!< Flags */ 2082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid 2102228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfAnalysisFilteringSlot( HANDLE_QMF_FILTER_BANK anaQmf, /*!< Handle of Qmf Synthesis Bank */ 2112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *qmfReal, /*!< Low and High band, real */ 2122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *qmfImag, /*!< Low and High band, imag */ 2132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM *timeIn, /*!< Pointer to input */ 2142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int stride, /*!< stride factor of input */ 2152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *pWorkBuffer /*!< pointer to temporal working buffer */ 2162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 2172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectint 2192228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfInitSynthesisFilterBank( HANDLE_QMF_FILTER_BANK h_Qmf, /*!< QMF Handle */ 2202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QSS *pFilterStates, /*!< Pointer to filter state buffer */ 2212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int noCols, /*!< Number of time slots */ 2222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int lsb, /*!< Number of lower bands */ 2232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int usb, /*!< Number of upper bands */ 2242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int no_channels, /*!< Number of critically sampled bands */ 2252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int flags); /*!< Flags */ 2262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid qmfSynthesisFilteringSlot( HANDLE_QMF_FILTER_BANK synQmf, 2282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_QMF *realSlot, 2292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_QMF *imagSlot, 2302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int scaleFactorLowBand, 2312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int scaleFactorHighBand, 2322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT_PCM *timeOut, 2332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int stride, 2342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_QMF *pWorkBuffer); 2352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid 2372228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfChangeOutScalefactor (HANDLE_QMF_FILTER_BANK synQmf, /*!< Handle of Qmf Synthesis Bank */ 2382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int outScalefactor /*!< New scaling factor for output data */ 2392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 2402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid 2422228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectqmfChangeOutGain (HANDLE_QMF_FILTER_BANK synQmf, /*!< Handle of Qmf Synthesis Bank */ 2432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL outputGain /*!< New gain for output data */ 2442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 2452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif /* __QMF_H */ 249