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authorThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
committerThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
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tree57f3d390ebb0782cc0de0fb984c8ea7e45b4f386 /libFDK/include/FDK_archdef.h
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+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2012 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
+----------------------------------------------------------------------------------------------------------- */
+
+/*************************** Fraunhofer IIS FDK Tools ***********************
+
+ Author(s):
+ Description:
+
+******************************************************************************/
+
+#ifndef __ARCH_H__
+#define __ARCH_H__
+
+/* Performance / Quality profile selector */
+ #define FDK_HIGH_PERFORMANCE
+
+/* Unify some few toolchain specific defines to avoid having large "or" macro contraptions all over the source code. */
+
+/* Take action against VisualStudio 2005 crosscompile problems. */
+
+/* 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 (__x86_64__)
+#define __x86__
+#endif
+
+#if (defined(_M_ARM) || defined(__CC_ARM)) && !defined(__arm__) || defined(__TI_TMS470_V5__) && !defined(__arm__)
+#define __arm__
+#endif
+
+
+
+/* Define __ARM_ARCH_5TE__ if armv5te features are supported */
+#if (__TARGET_ARCH_ARM == 5) || defined(__TARGET_FEATURE_DSPMUL) || (_M_ARM == 5) || defined(__ARM_ARCH_5TEJ__) || defined(__TI_TMS470_V5__) || defined(__ARM_ARCH_7EM__)
+#define __ARM_ARCH_5TE__
+#endif
+
+/* Define __ARM_ARCH_6__ if the armv6 intructions are being supported. */
+#if (__TARGET_ARCH_ARM == 6) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6ZK__)
+#define __ARM_ARCH_5TE__
+#define __ARM_ARCH_6__
+#endif
+
+/* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */
+#if defined(__TARGET_ARCH_7_R) || defined(__ARM_ARCH_7R__)
+#define __ARM_ARCH_5TE__
+#define __ARM_ARCH_6__
+#define __ARM_ARCH_7_R__
+#endif
+
+/* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */
+#if defined(__TARGET_ARCH_7_A) || defined(__ARM_ARCH_7A__)
+#define __ARM_ARCH_5TE__
+#define __ARM_ARCH_6__
+#define __ARM_ARCH_7_A__
+#endif
+
+/* Define __ARM_ARCH_7M__ if the ARMv7-M instructions are being supported, e.g. Cortex-M3. */
+#if defined(__TARGET_ARCH_7_M) || defined(__ARM_ARCH_7_M__)
+#define __ARM_ARCH_7M__
+#endif
+
+/* Define __ARM_ARCH_7EM__ if the ARMv7-ME instructions are being supported, e.g. Cortex-M4. */
+#if defined(__TARGET_ARCH_7E_M) || defined(__ARM_ARCH_7E_M__)
+#define __ARM_ARCH_7EM__
+#endif
+
+/* Detect and unify macros for neon feature. */
+#if defined(__TARGET_FEATURE_NEON) && !defined(__ARM_NEON__)
+#define __ARM_NEON__
+#endif
+
+#ifdef _M_ARM
+#include "cmnintrin.h"
+#include "armintr.h"
+#endif
+
+
+
+/* Define preferred Multiplication type */
+#if defined(FDK_HIGH_PERFORMANCE) && !defined(FDK_HIGH_QUALITY) /* FDK_HIGH_PERFORMANCE */
+
+#if defined(__mips__) || defined(__powerpc__) || defined(__sh__)
+#define ARCH_PREFER_MULT_16x16
+#undef SINETABLE_16BIT
+#undef POW2COEFF_16BIT
+#undef LDCOEFF_16BIT
+#undef WINDOWTABLE_16BIT
+
+#elif defined(__arm__) && defined(__ARM_ARCH_5TE__) /* cppp replaced: elif */ /* cppp replaced: elif */
+#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__) /* cppp replaced: elif */
+#define ARCH_PREFER_MULT_32x16
+#define SINETABLE_16BIT
+#define WINDOWTABLE_16BIT
+#define POW2COEFF_16BIT
+#define LDCOEFF_16BIT
+
+#else
+
+ #error >>>> Please set architecture characterization defines for your platform (FDK_HIGH_PERFORMANCE)! <<<<
+
+#endif /* Architecture switches */
+
+#else /* neither FDK_HIGH_QUALITY or FDK_HIGH_PERFORMANCE */
+
+#error Either set FDK_HIGH_QUALITY or FDK_HIGH_PERFORMANCE, but not both nor none of them.
+
+#endif /* End of quality/complexity tradeoff */
+
+#define FDKTOOLS_PACKED_TABLES
+
+
+#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 FIXP_WTP FIXP_SPK /* packed FIXP_SGL values */
+ #define WTC(a) FX_DBL2FXCONST_SGL(a)
+#else /* SINETABLE_16BIT */
+ #define FIXP_WTB FIXP_DBL
+ #define FIXP_WTP FIXP_DPK
+ #define WTC(a) (FIXP_DBL)(a)
+#endif /* SINETABLE_16BIT */
+
+#define WTCP(a,b) { { WTC(a), WTC(b) } }
+
+
+#endif /* __ARCH_H__ */