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/********************** Fraunhofer IIS FDK AAC Encoder lib ****************** 852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Author(s): M. Neusinger 872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Description: Compressor for AAC Metadata Generator 882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project******************************************************************************/ 902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "metadata_compressor.h" 932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "channel_map.h" 942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define LOG2 0.69314718056f /* natural logarithm of 2 */ 972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define ILOG2 1.442695041f /* 1/LOG2 */ 982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define FIXP_ILOG2_DIV2 (FL2FXCONST_DBL(ILOG2/2)) 992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*----------------- defines ----------------------*/ 1012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define MAX_DRC_CHANNELS (8) /*!< Max number of audio input channels. */ 1032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define DOWNMIX_SHIFT (3) /*!< Max 8 channel. */ 1042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define WEIGHTING_FILTER_SHIFT (2) /*!< Scaling used in weighting filter. */ 1052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define METADATA_INT_BITS 10 1072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define METADATA_LINT_BITS 20 1082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define METADATA_INT_SCALE (INT64(1)<<(METADATA_INT_BITS)) 1092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define METADATA_FRACT_BITS (DFRACT_BITS-1-METADATA_INT_BITS) 1102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#define METADATA_FRACT_SCALE (INT64(1)<<(METADATA_FRACT_BITS)) 1112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 1132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Enum for channel assignment. 1142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 1152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectenum { 1162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project L = 0, 1172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project R = 1, 1182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project C = 2, 1192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project LFE = 3, 1202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project LS = 4, 1212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project RS = 5, 1222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project S = 6, 1232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project LS2 = 7, 1242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project RS2 = 8 1252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 1262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*--------------- structure definitions --------------------*/ 1282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 1302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Structure holds weighting filter filter states. 1312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 1322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstruct WEIGHTING_STATES { 1332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL x1; 1342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL x2; 1352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL y1; 1362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL y2; 1372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 1382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 1402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Dynamic Range Control compressor structure. 1412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 1422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstruct DRC_COMP { 1432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL maxBoostThr[2]; /*!< Max boost threshold. */ 1452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL boostThr[2]; /*!< Boost threshold. */ 1462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL earlyCutThr[2]; /*!< Early cut threshold. */ 1472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL cutThr[2]; /*!< Cut threshold. */ 1482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL maxCutThr[2]; /*!< Max cut threshold. */ 1492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL boostFac[2]; /*!< Precalculated factor for boost compression. */ 1512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL earlyCutFac[2]; /*!< Precalculated factor for early cut compression. */ 1522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL cutFac[2]; /*!< Precalculated factor for cut compression. */ 1532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL maxBoost[2]; /*!< Maximum boost. */ 1552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL maxCut[2]; /*!< Maximum cut. */ 1562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL maxEarlyCut[2]; /*!< Maximum early cut. */ 1572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL fastAttack[2]; /*!< Fast attack coefficient. */ 1592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL fastDecay[2]; /*!< Fast release coefficient. */ 1602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL slowAttack[2]; /*!< Slow attack coefficient. */ 1612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL slowDecay[2]; /*!< Slow release coefficient. */ 1622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT holdOff[2]; /*!< Hold time in blocks. */ 1632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL attackThr[2]; /*!< Slow/fast attack threshold. */ 1652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL decayThr[2]; /*!< Slow/fast release threshold. */ 1662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project DRC_PROFILE profile[2]; /*!< DRC profile. */ 1682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT blockLength; /*!< Block length in samples. */ 1692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT sampleRate; /*!< Sample rate. */ 1702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CHANNEL_MODE chanConfig; /*!< Channel configuration. */ 1712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR useWeighting; /*!< Use weighting filter. */ 1732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT channels; /*!< Number of channels. */ 1752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT fullChannels; /*!< Number of full range channels. */ 1762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT channelIdx[9]; /*!< Offsets of interleaved channel samples (L, R, C, LFE, Ls, Rs, S, Ls2, Rs2). */ 1772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL smoothLevel[2]; /*!< level smoothing states */ 1792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL smoothGain[2]; /*!< gain smoothing states */ 1802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT holdCnt[2]; /*!< hold counter */ 1812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL limGain[2]; /*!< limiter gain */ 1832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL limDecay; /*!< limiter decay (linear) */ 1842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL prevPeak[2]; /*!< max peak of previous block (stereo/mono)*/ 1852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project WEIGHTING_STATES filter[MAX_DRC_CHANNELS]; /*!< array holds weighting filter states */ 1872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 1892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*---------------- constants -----------------------*/ 1912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 1932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Profile tables. 1942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 1952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabMaxBoostThr[] = { 1962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-43<<METADATA_FRACT_BITS), 1972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-53<<METADATA_FRACT_BITS), 1982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-55<<METADATA_FRACT_BITS), 1992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-65<<METADATA_FRACT_BITS), 2002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-50<<METADATA_FRACT_BITS), 2012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-40<<METADATA_FRACT_BITS) 2022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabBoostThr[] = { 2042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-31<<METADATA_FRACT_BITS), 2052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-41<<METADATA_FRACT_BITS), 2062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-31<<METADATA_FRACT_BITS), 2072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-41<<METADATA_FRACT_BITS), 2082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-31<<METADATA_FRACT_BITS), 2092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-31<<METADATA_FRACT_BITS) 2102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabEarlyCutThr[] = { 2122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-26<<METADATA_FRACT_BITS), 2132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-21<<METADATA_FRACT_BITS), 2142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-26<<METADATA_FRACT_BITS), 2152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-21<<METADATA_FRACT_BITS), 2162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-26<<METADATA_FRACT_BITS), 2172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-20<<METADATA_FRACT_BITS) 2182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabCutThr[] = { 2202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-16<<METADATA_FRACT_BITS), 2212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-11<<METADATA_FRACT_BITS), 2222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-16<<METADATA_FRACT_BITS), 2232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-21<<METADATA_FRACT_BITS), 2242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-16<<METADATA_FRACT_BITS), 2252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(-10<<METADATA_FRACT_BITS) 2262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabMaxCutThr[] = { 2282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(4<<METADATA_FRACT_BITS), 2292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(9<<METADATA_FRACT_BITS), 2302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(4<<METADATA_FRACT_BITS), 2312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(9<<METADATA_FRACT_BITS), 2322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(4<<METADATA_FRACT_BITS), 2332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(4<<METADATA_FRACT_BITS) 2342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabBoostRatio[] = { 2362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/5.f) - 1.f) ), 2412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/5.f) - 1.f) ) 2422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabEarlyCutRatio[] = { 2442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/1.f) - 1.f) ), 2482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ), 2492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/2.f) - 1.f) ) 2502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabCutRatio[] = { 2522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/20.f) - 1.f) ), 2532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/20.f) - 1.f) ), 2542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/20.f) - 1.f) ), 2552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/ 2.f) - 1.f) ), 2562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/20.f) - 1.f) ), 2572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( ((1.f/20.f) - 1.f) ) 2582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabMaxBoost[] = { 2602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)( 6<<METADATA_FRACT_BITS), 2612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)( 6<<METADATA_FRACT_BITS), 2622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(12<<METADATA_FRACT_BITS), 2632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(12<<METADATA_FRACT_BITS), 2642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 2652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS) 2662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabMaxCut[] = { 2682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(24<<METADATA_FRACT_BITS), 2692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(24<<METADATA_FRACT_BITS), 2702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(24<<METADATA_FRACT_BITS), 2712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 2722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(24<<METADATA_FRACT_BITS), 2732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(24<<METADATA_FRACT_BITS) 2742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabFastAttack[] = { 2762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10.f/1000.f)/METADATA_INT_SCALE), 2772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10.f/1000.f)/METADATA_INT_SCALE), 2782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10.f/1000.f)/METADATA_INT_SCALE), 2792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10.f/1000.f)/METADATA_INT_SCALE), 2802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10.f/1000.f)/METADATA_INT_SCALE), 2812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (0.f/1000.f)/METADATA_INT_SCALE) 2822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabFastDecay[] = { 2842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((1000.f/1000.f)/METADATA_INT_SCALE), 2852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((1000.f/1000.f)/METADATA_INT_SCALE), 2862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((1000.f/1000.f)/METADATA_INT_SCALE), 2872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((1000.f/1000.f)/METADATA_INT_SCALE), 2882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (200.f/1000.f)/METADATA_INT_SCALE), 2892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (0.f/1000.f)/METADATA_INT_SCALE) 2902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabSlowAttack[] = { 2922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((100.f/1000.f)/METADATA_INT_SCALE), 2932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((100.f/1000.f)/METADATA_INT_SCALE), 2942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((100.f/1000.f)/METADATA_INT_SCALE), 2952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((100.f/1000.f)/METADATA_INT_SCALE), 2962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((100.f/1000.f)/METADATA_INT_SCALE), 2972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (0.f/1000.f)/METADATA_INT_SCALE) 2982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 2992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabSlowDecay[] = { 3002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (3000.f/1000.f)/METADATA_INT_SCALE), 3012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (3000.f/1000.f)/METADATA_INT_SCALE), 3022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL((10000.f/1000.f)/METADATA_INT_SCALE), 3032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (3000.f/1000.f)/METADATA_INT_SCALE), 3042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (1000.f/1000.f)/METADATA_INT_SCALE), 3052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FL2FXCONST_DBL( (0.f/1000.f)/METADATA_INT_SCALE) 3062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 3072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const INT tabHoldOff[] = { 10, 10, 10, 10, 10, 0 }; 3092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabAttackThr[] = { 3112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 3122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 3132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 3142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(15<<METADATA_FRACT_BITS), 3152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(10<<METADATA_FRACT_BITS), 3162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(0<<METADATA_FRACT_BITS) 3172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 3182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL tabDecayThr[] = { 3192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(20<<METADATA_FRACT_BITS), 3202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(20<<METADATA_FRACT_BITS), 3212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(20<<METADATA_FRACT_BITS), 3222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(20<<METADATA_FRACT_BITS), 3232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)(10<<METADATA_FRACT_BITS), 3242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)( 0<<METADATA_FRACT_BITS) 3252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 3262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 3282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Weighting filter coefficients (biquad bandpass). 3292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 3302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL b0 = FL2FXCONST_DBL(0.53050662f); /* b1 = 0, b2 = -b0 */ 3312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic const FIXP_DBL a1 = FL2FXCONST_DBL(-0.95237983f), a2 = FL2FXCONST_DBL(-0.02248836f); /* a0 = 1 */ 3322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*------------- function definitions ----------------*/ 3352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 3372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \brief Calculate scaling factor for denoted processing block. 3382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param blockLength Length of processing block. 3402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \return shiftFactor 3422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 3432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic UINT getShiftFactor( 3442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT length 3452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 3462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT ldN; 3482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for(ldN=1;(((UINT)1)<<ldN) < length;ldN++); 3492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return ldN; 3512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 3542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \brief Sum up fixpoint values with best possible accuracy. 3552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param value1 First input value. 3572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param q1 Scaling factor of first input value. 3582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param pValue2 Pointer to second input value, will be modified on return. 3592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param pQ2 Pointer to second scaling factor, will be modified on return. 3602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \return void 3622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 3632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic void fixpAdd( 3642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_DBL value1, 3652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int q1, 3662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *const pValue2, 3672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int *const pQ2 3682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 3692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int headroom1 = fNormz(fixp_abs(value1))-1; 3712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int headroom2 = fNormz(fixp_abs(*pValue2))-1; 3722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int resultScale = fixMax(q1-headroom1, (*pQ2)-headroom2); 3732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( (value1!=FL2FXCONST_DBL(0.f)) && (*pValue2!=FL2FXCONST_DBL(0.f)) ) { 3752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project resultScale++; 3762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *pValue2 = scaleValue(value1, q1-resultScale) + scaleValue(*pValue2, (*pQ2)-resultScale); 3792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *pQ2 = (*pValue2!=(FIXP_DBL)0) ? resultScale : DFRACT_BITS-1; 3802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 3832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \brief Function for converting time constant to filter coefficient. 3842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param t Time constant. 3862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param sampleRate Sampling rate in Hz. 3872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param blockLength Length of processing block in samples per channel. 3882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 3892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \return result = 1.0 - exp(-1.0/((t) * (f))) 3902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 3912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic FIXP_DBL tc2Coeff( 3922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_DBL t, 3932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT sampleRate, 3942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT blockLength 3952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 3962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL sampleRateFract; 3982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL blockLengthFract; 3992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL f, product; 4002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL exponent, result; 4012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT e_res; 4022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* f = sampleRate/blockLength */ 4042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sampleRateFract = (FIXP_DBL)(sampleRate<<(DFRACT_BITS-1-METADATA_LINT_BITS)); 4052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project blockLengthFract = (FIXP_DBL)(blockLength<<(DFRACT_BITS-1-METADATA_LINT_BITS)); 4062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project f = fDivNorm(sampleRateFract, blockLengthFract, &e_res); 4072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project f = scaleValue(f, e_res-METADATA_INT_BITS); /* convert to METADATA_FRACT */ 4082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* product = t*f */ 4102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project product = fMultNorm(t, f, &e_res); 4112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project product = scaleValue(product, e_res+METADATA_INT_BITS); /* convert to METADATA_FRACT */ 4122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* exponent = (-1.0/((t) * (f))) */ 4142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project exponent = fDivNorm(METADATA_FRACT_SCALE, product, &e_res); 4152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project exponent = scaleValue(exponent, e_res-METADATA_INT_BITS); /* convert to METADATA_FRACT */ 4162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* exponent * ld(e) */ 4182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project exponent = fMult(exponent,FIXP_ILOG2_DIV2)<<1; /* e^(x) = 2^(x*ld(e)) */ 4192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* exp(-1.0/((t) * (f))) */ 4212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project result = f2Pow(-exponent, DFRACT_BITS-1-METADATA_FRACT_BITS, &e_res); 4222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* result = 1.0 - exp(-1.0/((t) * (f))) */ 42416c472c201c197d3660334df5952eb4084897f9fJean-Michel Trivi result = (FIXP_DBL)MAXVAL_DBL - scaleValue(result, e_res); 4252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return result; 4272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4292228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_DRC_Generator_Open( 4302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP *phDrcComp 4312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 4322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT err = 0; 4342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP hDcComp = NULL; 4352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (phDrcComp == NULL) { 4372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project err = -1; 4382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project goto bail; 4392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* allocate memory */ 4422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hDcComp = (HDRC_COMP)FDKcalloc(1, sizeof(DRC_COMP)); 4432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (hDcComp == NULL) { 4452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project err = -1; 4462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project goto bail; 4472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(hDcComp, sizeof(DRC_COMP)); 4502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Return drc compressor instance */ 4522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *phDrcComp = hDcComp; 4532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return err; 4542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectbail: 4552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_DRC_Generator_Close(&hDcComp); 4562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return err; 4572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4592228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_DRC_Generator_Close( 4602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP *phDrcComp 4612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 4622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (phDrcComp == NULL) { 4642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return -1; 4652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (*phDrcComp != NULL) { 4672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKfree(*phDrcComp); 4682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *phDrcComp = NULL; 4692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return 0; 4712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4742228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_DRC_Generator_Initialize( 4752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP drcComp, 4762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const DRC_PROFILE profileLine, 4772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const DRC_PROFILE profileRF, 4782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT blockLength, 4792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT sampleRate, 4802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const CHANNEL_MODE channelMode, 4812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const CHANNEL_ORDER channelOrder, 4822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UCHAR useWeighting 4832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 4842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i; 4862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CHANNEL_MAPPING channelMapping; 4872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->limDecay = FL2FXCONST_DBL( ((0.006f / 256) * blockLength) / METADATA_INT_SCALE ); 4892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Save parameters. */ 4912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->blockLength = blockLength; 4922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->sampleRate = sampleRate; 4932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->chanConfig = channelMode; 4942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->useWeighting = useWeighting; 4952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (FDK_DRC_Generator_setDrcProfile(drcComp, profileLine, profileRF)!=0) { /* expects initialized blockLength and sampleRate */ 4972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (-1); 4982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Set number of channels and channel offsets. */ 5012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (FDKaacEnc_InitChannelMapping(channelMode, channelOrder, &channelMapping)!=AAC_ENC_OK) { 5022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (-2); 5032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < 9; i++) drcComp->channelIdx[i] = -1; 5062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project switch (channelMode) { 5082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1: /* mono */ 5092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; 5102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_2: /* stereo */ 5122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[L] = channelMapping.elInfo[0].ChannelIndex[0]; 5132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[R] = channelMapping.elInfo[0].ChannelIndex[1]; 5142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_2: /* 3ch */ 5162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; 5172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; 5182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; 5192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_2_1: /* 4ch */ 5212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; 5222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; 5232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; 5242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[S] = channelMapping.elInfo[2].ChannelIndex[0]; 5252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_2_2: /* 5ch */ 5272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; 5282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; 5292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; 5302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[LS] = channelMapping.elInfo[2].ChannelIndex[0]; 5312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[RS] = channelMapping.elInfo[2].ChannelIndex[1]; 5322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_2_2_1: /* 5.1 ch */ 5342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; 5352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; 5362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; 5372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[LFE] = channelMapping.elInfo[3].ChannelIndex[0]; 5382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[LS] = channelMapping.elInfo[2].ChannelIndex[0]; 5392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channelIdx[RS] = channelMapping.elInfo[2].ChannelIndex[1]; 5402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_2_2_2_1: /* 7.1 ch */ 542fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi case MODE_7_1_FRONT_CENTER: 543fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[L] = channelMapping.elInfo[2].ChannelIndex[0]; /* l */ 544fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[R] = channelMapping.elInfo[2].ChannelIndex[1]; /* r */ 545fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; /* c */ 546fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LFE] = channelMapping.elInfo[4].ChannelIndex[0]; /* lfe */ 547fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LS] = channelMapping.elInfo[3].ChannelIndex[0]; /* ls */ 548fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[RS] = channelMapping.elInfo[3].ChannelIndex[1]; /* rs */ 549fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LS2] = channelMapping.elInfo[1].ChannelIndex[0]; /* lc */ 550fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[RS2] = channelMapping.elInfo[1].ChannelIndex[1]; /* rc */ 551fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi break; 552fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi case MODE_7_1_REAR_SURROUND: 553fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; /* l */ 554fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; /* r */ 555fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; /* c */ 556fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LFE] = channelMapping.elInfo[4].ChannelIndex[0]; /* lfe */ 557fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LS] = channelMapping.elInfo[3].ChannelIndex[0]; /* lrear */ 558fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[RS] = channelMapping.elInfo[3].ChannelIndex[1]; /* rrear */ 559fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[LS2] = channelMapping.elInfo[2].ChannelIndex[0]; /* ls */ 560fa3eba16446cc8f2f5e2dfc20d86a49dbd37299eJean-Michel Trivi drcComp->channelIdx[RS2] = channelMapping.elInfo[2].ChannelIndex[1]; /* rs */ 5612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 5622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_1: 5632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_1_1_1: 5642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_1_1_1_1_1: 5652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_1_1_1_1_1_1_1: 5662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_1_1_1_1_1_1_1_1_1_1_1_1: 5672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_2_2: 5682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_2_2_2: 5692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_2_2_2_2: 5702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case MODE_2_2_2_2_2_2: 5712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project default: 5722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (-1); 5732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->fullChannels = channelMapping.nChannelsEff; 5762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->channels = channelMapping.nChannels; 5772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Init states. */ 5792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothLevel[0] = drcComp->smoothLevel[1] = (FIXP_DBL)(-135<<METADATA_FRACT_BITS); 5802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(drcComp->smoothGain, sizeof(drcComp->smoothGain)); 5822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(drcComp->holdCnt, sizeof(drcComp->holdCnt)); 5832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(drcComp->limGain, sizeof(drcComp->limGain)); 5842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(drcComp->prevPeak, sizeof(drcComp->prevPeak)); 5852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(drcComp->filter, sizeof(drcComp->filter)); 5862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (0); 5882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 5892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5912228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_DRC_Generator_setDrcProfile( 5922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP drcComp, 5932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const DRC_PROFILE profileLine, 5942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const DRC_PROFILE profileRF 5952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 5962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 5972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int profileIdx, i; 5982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->profile[0] = profileLine; 6002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->profile[1] = profileRF; 6012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < 2; i++) { 6032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* get profile index */ 6042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project switch (drcComp->profile[i]) { 6052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_NONE: 6062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_FILMSTANDARD: profileIdx = 0; break; 6072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_FILMLIGHT: profileIdx = 1; break; 6082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_MUSICSTANDARD: profileIdx = 2; break; 6092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_MUSICLIGHT: profileIdx = 3; break; 6102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_SPEECH: profileIdx = 4; break; 6112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case DRC_DELAY_TEST: profileIdx = 5; break; 6122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project default: return (-1); 6132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* get parameters for selected profile */ 6162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (profileIdx >= 0) { 6172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->maxBoostThr[i] = tabMaxBoostThr[profileIdx]; 6182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->boostThr[i] = tabBoostThr[profileIdx]; 6192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->earlyCutThr[i] = tabEarlyCutThr[profileIdx]; 6202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->cutThr[i] = tabCutThr[profileIdx]; 6212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->maxCutThr[i] = tabMaxCutThr[profileIdx]; 6222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->boostFac[i] = tabBoostRatio[profileIdx]; 6242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->earlyCutFac[i] = tabEarlyCutRatio[profileIdx]; 6252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->cutFac[i] = tabCutRatio[profileIdx]; 6262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->maxBoost[i] = tabMaxBoost[profileIdx]; 6282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->maxCut[i] = tabMaxCut[profileIdx]; 6292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->maxEarlyCut[i] = - fMult((drcComp->cutThr[i] - drcComp->earlyCutThr[i]), drcComp->earlyCutFac[i]); /* no scaling after mult needed, earlyCutFac is in FIXP_DBL */ 6302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->fastAttack[i] = tc2Coeff(tabFastAttack[profileIdx], drcComp->sampleRate, drcComp->blockLength); 6322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->fastDecay[i] = tc2Coeff(tabFastDecay[profileIdx], drcComp->sampleRate, drcComp->blockLength); 6332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->slowAttack[i] = tc2Coeff(tabSlowAttack[profileIdx], drcComp->sampleRate, drcComp->blockLength); 6342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->slowDecay[i] = tc2Coeff(tabSlowDecay[profileIdx], drcComp->sampleRate, drcComp->blockLength); 6352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->holdOff[i] = tabHoldOff[profileIdx] * 256 / drcComp->blockLength; 6362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->attackThr[i] = tabAttackThr[profileIdx]; 6382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->decayThr[i] = tabDecayThr[profileIdx]; 6392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothGain[i] = FL2FXCONST_DBL(0.f); 6422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (0); 6442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 6452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6472228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_DRC_Generator_Calc( 6482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HDRC_COMP drcComp, 6492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM * const inSamples, 6502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT dialnorm, 6512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT drc_TargetRefLevel, 6522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT comp_TargetRefLevel, 6532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL clev, 6542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL slev, 6552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT * const pDynrng, 6562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT * const pCompr 6572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 6582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 6592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i, c; 6602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL peak[2]; 6612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /************************************************************************** 6642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * compressor 6652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project **************************************************************************/ 6662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->profile[0] != DRC_NONE) || (drcComp->profile[1] != DRC_NONE)) { 6672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Calc loudness level */ 6682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL level_b = FL2FXCONST_DBL(0.f); 6692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int level_e = DFRACT_BITS-1; 6702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Increase energy time resolution with shorter processing blocks. 32 is an empiric value. */ 6722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int granuleLength = fixMin(32, drcComp->blockLength); 6732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->useWeighting) { 6752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL x1, x2, y, y1, y2; 6762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* sum of filter coefficients about 2.5 -> squared value is 6.25 6772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project WEIGHTING_FILTER_SHIFT is 2 -> scaling about 16, therefore reduce granuleShift by 1. 6782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 6792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int granuleShift = getShiftFactor(granuleLength)-1; 6802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (c = 0; c < (int)drcComp->channels; c++) { 6822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM* pSamples = &inSamples[c]; 6832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (c == drcComp->channelIdx[LFE]) { 6852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project continue; /* skip LFE */ 6862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* get filter states */ 6892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x1 = drcComp->filter[c].x1; 6902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x2 = drcComp->filter[c].x2; 6912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project y1 = drcComp->filter[c].y1; 6922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project y2 = drcComp->filter[c].y2; 6932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project i = 0; 6952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project do { 6972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int offset = i; 6992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL accu = FL2FXCONST_DBL(0.f); 7002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=offset; i < fixMin(offset+granuleLength,drcComp->blockLength); i++) { 7022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* apply weighting filter */ 7032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL x = FX_PCM2FX_DBL((FIXP_PCM)pSamples[i*drcComp->channels]) >> WEIGHTING_FILTER_SHIFT; 7042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* y = b0 * (x - x2) - a1 * y1 - a2 * y2; */ 7062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project y = fMult(b0,x-x2) - fMult(a1,y1) - fMult(a2,y2); 7072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x2 = x1; 7092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x1 = x; 7102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project y2 = y1; 7112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project y1 = y; 7122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project accu += fPow2Div2(y)>>(granuleShift-1); /* partial energy */ 7142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* i */ 7152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fixpAdd(accu, granuleShift+2*WEIGHTING_FILTER_SHIFT, &level_b, &level_e); /* sup up partial energies */ 7172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } while ( i < drcComp->blockLength ); 7192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* save filter states */ 7222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->filter[c].x1 = x1; 7232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->filter[c].x2 = x2; 7242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->filter[c].y1 = y1; 7252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->filter[c].y2 = y2; 7262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* c */ 7272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* weighting */ 7282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 7292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int granuleShift = getShiftFactor(granuleLength); 7302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (c = 0; c < (int)drcComp->channels; c++) { 7322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM* pSamples = &inSamples[c]; 7332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((int)c == drcComp->channelIdx[LFE]) { 7352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project continue; /* skip LFE */ 7362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project i = 0; 7392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project do { 7412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int offset = i; 7422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL accu = FL2FXCONST_DBL(0.f); 7432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=offset; i < fixMin(offset+granuleLength,drcComp->blockLength); i++) { 7452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* partial energy */ 7462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project accu += fPow2Div2((FIXP_PCM)pSamples[i*drcComp->channels])>>(granuleShift-1); 7472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* i */ 7482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fixpAdd(accu, granuleShift, &level_b, &level_e); /* sup up partial energies */ 7502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } while ( i < drcComp->blockLength ); 7522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* weighting */ 7542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* 7562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Convert to dBFS, apply dialnorm 7572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 7582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* level scaling */ 7592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* descaled level in ld64 representation */ 7612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL ldLevel = CalcLdData(level_b) + (FIXP_DBL)((level_e-12)<<(DFRACT_BITS-1-LD_DATA_SHIFT)) - CalcLdData((FIXP_DBL)(drcComp->blockLength<<(DFRACT_BITS-1-12))); 7622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* if (level < 1e-10) level = 1e-10f; */ 7642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ldLevel = FDKmax(ldLevel, FL2FXCONST_DBL(-0.51905126482615036685473741085772f)); 7652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* level = 10 * log(level)/log(10) + 3; 7672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10*log(2)/log(10) * ld(level) + 3; 7682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10 * 0.30102999566398119521373889472449 * ld(level) + 3 7692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10 * (0.30102999566398119521373889472449 * ld(level) + 0.3) 7702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10 * (0.30102999566398119521373889472449 * ld64(level) + 0.3/64) * 64 7712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 7722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * additional scaling with METADATA_FRACT_BITS: 7732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10 * (0.30102999566398119521373889472449 * ld64(level) + 0.3/64) * 64 * 2^(METADATA_FRACT_BITS) 7742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10 * (0.30102999566398119521373889472449 * ld64(level) + 0.3/64) * 2^(METADATA_FRACT_BITS+LD_DATA_SHIFT) 7752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * = 10*2^(METADATA_FRACT_BITS+LD_DATA_SHIFT) * ( 0.30102999566398119521373889472449 * ld64(level) + 0.3/64 ) 7762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * */ 7772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL level = fMult((FIXP_DBL)(10<<(METADATA_FRACT_BITS+LD_DATA_SHIFT)), fMult( FL2FXCONST_DBL(0.30102999566398119521373889472449f), ldLevel) + (FIXP_DBL)(FL2FXCONST_DBL(0.3f)>>LD_DATA_SHIFT) ); 7782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* level -= dialnorm + 31 */ /* this is fixed to Dolby-ReferenceLevel as compressor profiles are defined relative to this */ 7802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project level -= ((FIXP_DBL)(dialnorm<<(METADATA_FRACT_BITS-16)) + (FIXP_DBL)(31<<METADATA_FRACT_BITS)); 7812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < 2; i++) { 7832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->profile[i] == DRC_NONE) { 7842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* no compression */ 7852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothGain[i] = FL2FXCONST_DBL(0.f); 7862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 7882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL gain, alpha, lvl2smthlvl; 7892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* calc static gain */ 7912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (level <= drcComp->maxBoostThr[i]) { 7922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* max boost */ 7932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = drcComp->maxBoost[i]; 7942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else if (level < drcComp->boostThr[i]) { 7962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* boost range */ 7972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = fMult((level - drcComp->boostThr[i]),drcComp->boostFac[i]); 7982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else if (level <= drcComp->earlyCutThr[i]) { 8002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* null band */ 8012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = FL2FXCONST_DBL(0.f); 8022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else if (level <= drcComp->cutThr[i]) { 8042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* early cut range */ 8052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = fMult((level - drcComp->earlyCutThr[i]), drcComp->earlyCutFac[i]); 8062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else if (level < drcComp->maxCutThr[i]) { 8082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* cut range */ 8092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = fMult((level - drcComp->cutThr[i]), drcComp->cutFac[i]) - drcComp->maxEarlyCut[i]; 8102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 8122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* max cut */ 8132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project gain = -drcComp->maxCut[i]; 8142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* choose time constant */ 8172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project lvl2smthlvl = level - drcComp->smoothLevel[i]; 8182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (gain < drcComp->smoothGain[i]) { 8192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* attack */ 8202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (lvl2smthlvl > drcComp->attackThr[i]) { 8212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* fast attack */ 8222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project alpha = drcComp->fastAttack[i]; 8232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 8252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* slow attack */ 8262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project alpha = drcComp->slowAttack[i]; 8272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 8302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* release */ 8312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (lvl2smthlvl < -drcComp->decayThr[i]) { 8322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* fast release */ 8332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project alpha = drcComp->fastDecay[i]; 8342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 8362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* slow release */ 8372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project alpha = drcComp->slowDecay[i]; 8382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* smooth gain & level */ 8422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((gain < drcComp->smoothGain[i]) || (drcComp->holdCnt[i] == 0)) { /* hold gain unless we have an attack or hold period is over */ 8432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL accu; 8442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* drcComp->smoothLevel[i] = (1-alpha) * drcComp->smoothLevel[i] + alpha * level; */ 84616c472c201c197d3660334df5952eb4084897f9fJean-Michel Trivi accu = fMult(((FIXP_DBL)MAXVAL_DBL-alpha), drcComp->smoothLevel[i]); 8472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project accu += fMult(alpha,level); 8482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothLevel[i] = accu; 8492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* drcComp->smoothGain[i] = (1-alpha) * drcComp->smoothGain[i] + alpha * gain; */ 85116c472c201c197d3660334df5952eb4084897f9fJean-Michel Trivi accu = fMult(((FIXP_DBL)MAXVAL_DBL-alpha), drcComp->smoothGain[i]); 8522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project accu += fMult(alpha,gain); 8532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothGain[i] = accu; 8542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* hold counter */ 8572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->holdCnt[i]) { 8582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->holdCnt[i]--; 8592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (gain < drcComp->smoothGain[i]) { 8612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->holdCnt[i] = drcComp->holdOff[i]; 8622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* profile != DRC_NONE */ 8642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } /* for i=1..2 */ 8652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } else { 8662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* no compression */ 8672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothGain[0] = FL2FXCONST_DBL(0.f); 8682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->smoothGain[1] = FL2FXCONST_DBL(0.f); 8692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /************************************************************************** 8722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * limiter 8732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project **************************************************************************/ 8742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* find peak level */ 8762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = peak[1] = FL2FXCONST_DBL(0.f); 8772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < drcComp->blockLength; i++) { 8782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL tmp; 8792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const INT_PCM* pSamples = &inSamples[i*drcComp->channels]; 8802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT_PCM maxSample = 0; 8812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* single channels */ 8832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (c = 0; c < (int)drcComp->channels; c++) { 8842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project maxSample = FDKmax(maxSample, fAbs(pSamples[c])); 8852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 8862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = fixMax(peak[0], FX_PCM2FX_DBL(maxSample)>>DOWNMIX_SHIFT); 8872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Lt/Rt downmix */ 8892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->fullChannels > 2) { 8902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Lt */ 8912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = FL2FXCONST_DBL(0.f); 8922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 8932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS] >= 0) tmp -= fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[LS]])>>(DOWNMIX_SHIFT-1); /* Ls */ 8942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS2] >= 0) tmp -= fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[LS2]])>>(DOWNMIX_SHIFT-1); /* Ls2 */ 8952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS] >= 0) tmp -= fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[RS]])>>(DOWNMIX_SHIFT-1); /* Rs */ 8962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS2] >= 0) tmp -= fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[RS2]])>>(DOWNMIX_SHIFT-1); /* Rs2 */ 8972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->channelIdx[LS] >= 0) && (drcComp->channelIdx[LS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ 8982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[S] >= 0) tmp -= fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]])>>(DOWNMIX_SHIFT-1); /* S */ 8992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[C] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C */ 9002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[L]])>>DOWNMIX_SHIFT); /* L */ 9012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = fixMax(peak[0], fixp_abs(tmp)); 9032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Rt */ 9052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = FL2FXCONST_DBL(0.f); 9062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[LS]])>>(DOWNMIX_SHIFT-1); /* Ls */ 9072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS2] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[LS2]])>>(DOWNMIX_SHIFT-1); /* Ls2 */ 9082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[RS]])>>(DOWNMIX_SHIFT-1); /* Rs */ 9092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS2] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[RS2]])>>(DOWNMIX_SHIFT-1); /* Rs2 */ 9102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->channelIdx[RS] >= 0) && (drcComp->channelIdx[RS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ 9112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[S] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]])>>(DOWNMIX_SHIFT-1); /* S */ 9122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[C] >= 0) tmp += fMultDiv2(FL2FXCONST_DBL(0.707f), (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C */ 9132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[R]])>>DOWNMIX_SHIFT); /* R */ 9142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = fixMax(peak[0], fixp_abs(tmp)); 9162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 9172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Lo/Ro downmix */ 9192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->fullChannels > 2) { 9202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Lo */ 9212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = FL2FXCONST_DBL(0.f); 9222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[LS]])>>(DOWNMIX_SHIFT-1); /* Ls */ 9232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS2] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[LS2]])>>(DOWNMIX_SHIFT-1); /* Ls2 */ 9242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->channelIdx[LS] >= 0) && (drcComp->channelIdx[LS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ 9252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[S] >= 0) tmp += fMultDiv2(slev, fMult(FL2FXCONST_DBL(0.7f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]]))>>(DOWNMIX_SHIFT-1); /* S */ 9262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[C] >= 0) tmp += fMultDiv2(clev, (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C */ 9272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[L]])>>DOWNMIX_SHIFT); /* L */ 9282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = fixMax(peak[0], fixp_abs(tmp)); 9302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Ro */ 9322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = FL2FXCONST_DBL(0.f); 9332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[RS]])>>(DOWNMIX_SHIFT-1); /* Rs */ 9342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS2] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[RS2]])>>(DOWNMIX_SHIFT-1); /* Rs2 */ 9352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->channelIdx[RS] >= 0) && (drcComp->channelIdx[RS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ 9362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[S] >= 0) tmp += fMultDiv2(slev, fMult(FL2FXCONST_DBL(0.7f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]]))>>(DOWNMIX_SHIFT-1); /* S */ 9372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[C] >= 0) tmp += fMultDiv2(clev, (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C */ 9382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[R]])>>DOWNMIX_SHIFT); /* R */ 9392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] = fixMax(peak[0], fixp_abs(tmp)); 9412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 9422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[1] = fixMax(peak[0], peak[1]); 9442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Mono Downmix - for comp_val only */ 9462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->fullChannels > 1) { 9472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = FL2FXCONST_DBL(0.f); 9482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[LS]])>>(DOWNMIX_SHIFT-1); /* Ls */ 9492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[LS2] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[LS2]])>>(DOWNMIX_SHIFT-1); /* Ls2 */ 9502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[RS]])>>(DOWNMIX_SHIFT-1); /* Rs */ 9512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[RS2] >= 0) tmp += fMultDiv2(slev, (FIXP_PCM)pSamples[drcComp->channelIdx[RS2]])>>(DOWNMIX_SHIFT-1); /* Rs2 */ 9522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((drcComp->channelIdx[LS] >= 0) && (drcComp->channelIdx[LS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ 9532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /*if ((drcComp->channelIdx[RS] >= 0) && (drcComp->channelIdx[RS2] >= 0)) tmp *=0.707f;*/ /* 7.1ch */ 9542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->channelIdx[S] >= 0) tmp += fMultDiv2(slev, fMult(FL2FXCONST_DBL(0.7f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]]))>>(DOWNMIX_SHIFT-1); /* S */ 95516c472c201c197d3660334df5952eb4084897f9fJean-Michel Trivi if (drcComp->channelIdx[C] >= 0) tmp += fMult(clev, (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C (2*clev) */ 9562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[L]])>>DOWNMIX_SHIFT); /* L */ 9572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[R]])>>DOWNMIX_SHIFT); /* R */ 9582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[1] = fixMax(peak[1], fixp_abs(tmp)); 9602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 9612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 9622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=0; i<2; i++) { 9642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL tmp = drcComp->prevPeak[i]; 9652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->prevPeak[i] = peak[i]; 9662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[i] = fixMax(peak[i], tmp); 9672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* 9692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * Convert to dBFS, apply dialnorm 9702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 9712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* descaled peak in ld64 representation */ 9722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL ld_peak = CalcLdData(peak[i]) + (FIXP_DBL)((LONG)DOWNMIX_SHIFT<<(DFRACT_BITS-1-LD_DATA_SHIFT)); 9732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* if (peak < 1e-6) level = 1e-6f; */ 9752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ld_peak = FDKmax(ld_peak, FL2FXCONST_DBL(-0.31143075889569022011284244651463f)); 9762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* peak[i] = 20 * log(peak[i])/log(10) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS) 9782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * peak[i] = 20 * log(2)/log(10) * ld(peak[i]) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS) 9792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * peak[i] = 10 * 2*0.30102999566398119521373889472449 * ld(peak[i]) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS) 9802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * 9812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * additional scaling with METADATA_FRACT_BITS: 9822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * peak[i] = (10 * 2*0.30102999566398119521373889472449 * ld64(peak[i]) * 64 + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS))*2^(-METADATA_FRACT_BITS) 9832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * peak[i] = 10*2^(METADATA_FRACT_BITS+LD_DATA_SHIFT) * 2*0.30102999566398119521373889472449 * ld64(peak[i]) 9842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * + 0.2f*2^(-METADATA_FRACT_BITS) + drcComp->smoothGain[i] 9852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 9862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[i] = fMult((FIXP_DBL)(10<<(METADATA_FRACT_BITS+LD_DATA_SHIFT)), fMult( FL2FX_DBL(2*0.30102999566398119521373889472449f), ld_peak)); 98716c472c201c197d3660334df5952eb4084897f9fJean-Michel Trivi peak[i] += (FL2FX_DBL(0.5f)>>METADATA_INT_BITS); /* add a little bit headroom */ 9882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[i] += drcComp->smoothGain[i]; 9892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 9902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* peak -= dialnorm + 31; */ /* this is Dolby style only */ 9922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[0] -= (FIXP_DBL)((dialnorm-drc_TargetRefLevel)<<(METADATA_FRACT_BITS-16)); /* peak[0] -= dialnorm - drc_TargetRefLevel */ 9932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* peak += 11; */ /* this is Dolby style only */ /* RF mode output is 11dB higher */ 9952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /*peak += comp_TargetRefLevel - drc_TargetRefLevel;*/ 9962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project peak[1] -= (FIXP_DBL)((dialnorm-comp_TargetRefLevel)<<(METADATA_FRACT_BITS-16)); /* peak[1] -= dialnorm - comp_TargetRefLevel */ 9972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 9982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* limiter gain */ 9992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->limGain[0] += drcComp->limDecay; /* linear limiter release */ 10002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->limGain[0] = fixMin(drcComp->limGain[0], -peak[0]); 10012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->limGain[1] += 2*drcComp->limDecay; /* linear limiter release */ 10032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project drcComp->limGain[1] = fixMin(drcComp->limGain[1], -peak[1]); 10042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /*************************************************************************/ 10062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* apply limiting, return DRC gains*/ 10082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 10092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL tmp; 10102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = drcComp->smoothGain[0]; 10122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->limGain[0] < FL2FXCONST_DBL(0.f)) { 10132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += drcComp->limGain[0]; 10142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 10152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *pDynrng = (LONG) scaleValue(tmp, -(METADATA_FRACT_BITS-16)); 10162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = drcComp->smoothGain[1]; 10182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (drcComp->limGain[1] < FL2FXCONST_DBL(0.f)) { 10192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp += drcComp->limGain[1]; 10202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 10212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *pCompr = (LONG) scaleValue(tmp, -(METADATA_FRACT_BITS-16)); 10222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 10232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return 0; 10252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 10262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10282228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectDRC_PROFILE FDK_DRC_Generator_getDrcProfile(const HDRC_COMP drcComp) 10292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 10302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return drcComp->profile[0]; 10312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 10322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10332228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectDRC_PROFILE FDK_DRC_Generator_getCompProfile(const HDRC_COMP drcComp) 10342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 10352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return drcComp->profile[1]; 10362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 10372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 10382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1039