FDK_archdef.h - Android社区 - https://www.androidos.net.cn/

/* -----------------------------------------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android

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

#warning  >>>> 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__ */

C++程序 | 246行 | 9.32 KB

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