| /* ----------------------------------------------------------------------------- |
| Software License for The Fraunhofer FDK AAC Codec Library for Android |
| |
| © Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten |
| Forschung e.V. All rights reserved. |
| |
| 1. INTRODUCTION |
| The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software |
| that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding |
| scheme for digital audio. This FDK AAC Codec software is intended to be used on |
| a wide variety of Android devices. |
| |
| AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient |
| general perceptual audio codecs. AAC-ELD is considered the best-performing |
| full-bandwidth communications codec by independent studies and is widely |
| deployed. AAC has been standardized by ISO and IEC as part of the MPEG |
| specifications. |
| |
| Patent licenses for necessary patent claims for the FDK AAC Codec (including |
| those of Fraunhofer) may be obtained through Via Licensing |
| (www.vialicensing.com) or through the respective patent owners individually for |
| the purpose of encoding or decoding bit streams in products that are compliant |
| with the ISO/IEC MPEG audio standards. Please note that most manufacturers of |
| Android devices already license these patent claims through Via Licensing or |
| directly from the patent owners, and therefore FDK AAC Codec software may |
| already be covered under those patent licenses when it is used for those |
| licensed purposes only. |
| |
| Commercially-licensed AAC software libraries, including floating-point versions |
| with enhanced sound quality, are also available from Fraunhofer. Users are |
| encouraged to check the Fraunhofer website for additional applications |
| information and documentation. |
| |
| 2. COPYRIGHT LICENSE |
| |
| Redistribution and use in source and binary forms, with or without modification, |
| are permitted without payment of copyright license fees provided that you |
| satisfy the following conditions: |
| |
| You must retain the complete text of this software license in redistributions of |
| the FDK AAC Codec or your modifications thereto in source code form. |
| |
| You must retain the complete text of this software license in the documentation |
| and/or other materials provided with redistributions of the FDK AAC Codec or |
| your modifications thereto in binary form. You must make available free of |
| charge copies of the complete source code of the FDK AAC Codec and your |
| modifications thereto to recipients of copies in binary form. |
| |
| The name of Fraunhofer may not be used to endorse or promote products derived |
| from this library without prior written permission. |
| |
| You may not charge copyright license fees for anyone to use, copy or distribute |
| the FDK AAC Codec software or your modifications thereto. |
| |
| Your modified versions of the FDK AAC Codec must carry prominent notices stating |
| that you changed the software and the date of any change. For modified versions |
| of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android" |
| must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK |
| AAC Codec Library for Android." |
| |
| 3. NO PATENT LICENSE |
| |
| NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without |
| limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE. |
| Fraunhofer provides no warranty of patent non-infringement with respect to this |
| software. |
| |
| You may use this FDK AAC Codec software or modifications thereto only for |
| purposes that are authorized by appropriate patent licenses. |
| |
| 4. DISCLAIMER |
| |
| This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright |
| holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, |
| including but not limited to the implied warranties of merchantability and |
| fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, |
| or consequential damages, including but not limited to procurement of substitute |
| goods or services; loss of use, data, or profits, or business interruption, |
| however caused and on any theory of liability, whether in contract, strict |
| liability, or tort (including negligence), arising in any way out of the use of |
| this software, even if advised of the possibility of such damage. |
| |
| 5. CONTACT INFORMATION |
| |
| Fraunhofer Institute for Integrated Circuits IIS |
| Attention: Audio and Multimedia Departments - FDK AAC LL |
| Am Wolfsmantel 33 |
| 91058 Erlangen, Germany |
| |
| www.iis.fraunhofer.de/amm |
| amm-info@iis.fraunhofer.de |
| ----------------------------------------------------------------------------- */ |
| |
| /******************* Library for basic calculation routines ******************** |
| |
| Author(s): |
| |
| Description: |
| |
| *******************************************************************************/ |
| |
| #ifndef FDK_ARCHDEF_H |
| #define FDK_ARCHDEF_H |
| |
| /* Unify some few toolchain specific defines to avoid having large "or" macro |
| * contraptions all over the source code. */ |
| |
| /* Use single macro (the GCC built in macro) for architecture identification |
| * independent of the particular toolchain */ |
| #if defined(__i386__) || defined(__i486__) || defined(__i586__) || \ |
| defined(__i686__) || (defined(_MSC_VER) && defined(_M_IX86)) || \ |
| (defined(_MSC_VER) && defined(_M_X64)) || defined(__x86_64__) |
| #define __x86__ |
| #endif |
| |
| #if defined(_M_ARM) && !defined(__arm__) || defined(__aarch64__) |
| #define __arm__ |
| #endif |
| |
| #if (__TARGET_ARCH_ARM == 5) || defined(__TARGET_FEATURE_DSPMUL) || \ |
| (_M_ARM == 5) || defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_7EM__) |
| /* Define __ARM_ARCH_5TE__ if armv5te features are supported */ |
| #define __ARM_ARCH_5TE__ |
| #endif |
| |
| #if (__TARGET_ARCH_ARM == 6) || defined(__ARM_ARCH_6J__) || \ |
| defined(__ARM_ARCH_6ZK__) |
| /* Define __ARM_ARCH_6__ if the armv6 intructions are being supported. */ |
| #define __ARM_ARCH_5TE__ |
| #define __ARM_ARCH_6__ |
| #endif |
| |
| #if defined(__TARGET_ARCH_7_R) || defined(__ARM_ARCH_7R__) |
| /* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */ |
| #define __ARM_ARCH_5TE__ |
| #define __ARM_ARCH_6__ |
| #define __ARM_ARCH_7_R__ |
| #endif |
| |
| #if defined(__TARGET_ARCH_7_A) || defined(__ARM_ARCH_7A__) || \ |
| ((__ARM_ARCH == 8) && (__ARM_32BIT_STATE == 1)) |
| /* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */ |
| #define __ARM_ARCH_5TE__ |
| #define __ARM_ARCH_6__ |
| #define __ARM_ARCH_7_A__ |
| #endif |
| |
| #if defined(__TARGET_ARCH_7_M) || defined(__ARM_ARCH_7_M__) |
| /* Define __ARM_ARCH_7M__ if the ARMv7-M instructions are being supported, e.g. |
| * Cortex-M3. */ |
| #define __ARM_ARCH_7M__ |
| #endif |
| |
| #if defined(__TARGET_ARCH_7E_M) || defined(__ARM_ARCH_7E_M__) |
| /* Define __ARM_ARCH_7EM__ if the ARMv7-ME instructions are being supported, |
| * e.g. Cortex-M4. */ |
| #define __ARM_ARCH_7EM__ |
| #endif |
| |
| #if defined(__aarch64__) |
| #define __ARM_ARCH_8__ |
| #endif |
| |
| #ifdef _M_ARM |
| #include "cmnintrin.h" |
| #include "armintr.h" |
| #endif |
| |
| /* Define preferred Multiplication type */ |
| |
| #if defined(__mips__) |
| #define ARCH_PREFER_MULT_16x16 |
| #undef SINETABLE_16BIT |
| #undef POW2COEFF_16BIT |
| #undef LDCOEFF_16BIT |
| #undef WINDOWTABLE_16BIT |
| |
| #elif defined(__arm__) && defined(__ARM_ARCH_8__) |
| #define ARCH_PREFER_MULT_32x16 |
| #define SINETABLE_16BIT |
| #define POW2COEFF_16BIT |
| #define LDCOEFF_16BIT |
| #define WINDOWTABLE_16BIT |
| |
| #elif defined(__arm__) && defined(__ARM_ARCH_5TE__) |
| #define ARCH_PREFER_MULT_32x16 |
| #define SINETABLE_16BIT |
| #define POW2COEFF_16BIT |
| #define LDCOEFF_16BIT |
| #define WINDOWTABLE_16BIT |
| |
| #elif defined(__arm__) && defined(__ARM_ARCH_7M__) |
| #define ARCH_PREFER_MULT_32x16 |
| #define SINETABLE_16BIT |
| #define POW2COEFF_16BIT |
| #define LDCOEFF_16BIT |
| #define WINDOWTABLE_16BIT |
| |
| #elif defined(__arm__) && defined(__ARM_ARCH_7EM__) |
| #define ARCH_PREFER_MULT_32x32 |
| #define ARCH_PREFER_MULT_32x16 |
| #define SINETABLE_16BIT |
| #define POW2COEFF_16BIT |
| #define LDCOEFF_16BIT |
| #define WINDOWTABLE_16BIT |
| |
| #elif defined(__arm__) && !defined(__ARM_ARCH_5TE__) |
| #define ARCH_PREFER_MULT_16x16 |
| #undef SINETABLE_16BIT |
| #undef WINDOWTABLE_16BIT |
| #undef POW2COEFF_16BIT |
| #undef LDCOEFF_16BIT |
| |
| #elif defined(__x86__) |
| #define ARCH_PREFER_MULT_32x16 |
| #define SINETABLE_16BIT |
| #define WINDOWTABLE_16BIT |
| #define POW2COEFF_16BIT |
| #define LDCOEFF_16BIT |
| |
| #else |
| #warning >>>> Please set architecture characterization defines for your platform (FDK_HIGH_PERFORMANCE)! <<<< |
| |
| #endif /* Architecture switches */ |
| |
| #ifdef SINETABLE_16BIT |
| #define FIXP_STB FIXP_SGL /* STB sinus Tab used in transformation */ |
| #define FIXP_STP FIXP_SPK |
| #define STC(a) (FX_DBL2FXCONST_SGL(a)) |
| #else |
| #define FIXP_STB FIXP_DBL |
| #define FIXP_STP FIXP_DPK |
| #define STC(a) ((FIXP_DBL)(LONG)(a)) |
| #endif /* defined(SINETABLE_16BIT) */ |
| |
| #define STCP(cos, sin) \ |
| { \ |
| { STC(cos), STC(sin) } \ |
| } |
| |
| #ifdef WINDOWTABLE_16BIT |
| #define FIXP_WTB FIXP_SGL /* single FIXP_SGL values */ |
| #define FX_DBL2FX_WTB(x) FX_DBL2FX_SGL(x) |
| #define FIXP_WTP FIXP_SPK /* packed FIXP_SGL values */ |
| #define WTC(a) FX_DBL2FXCONST_SGL(a) |
| #else /* SINETABLE_16BIT */ |
| #define FIXP_WTB FIXP_DBL |
| #define FX_DBL2FX_WTB(x) (x) |
| #define FIXP_WTP FIXP_DPK |
| #define WTC(a) (FIXP_DBL)(a) |
| #endif /* SINETABLE_16BIT */ |
| |
| #define WTCP(a, b) \ |
| { \ |
| { WTC(a), WTC(b) } \ |
| } |
| |
| #endif /* FDK_ARCHDEF_H */ |