mirror of
https://github.com/mstorsjo/fdk-aac.git
synced 2025-06-05 22:39:13 +02:00
Merge remote-tracking branch 'aosp/master'
This commit is contained in:
Martin Storsjo
@@ -1,74 +1,85 @@
|
||||
|
||||
/* -----------------------------------------------------------------------------------------------------------
|
||||
/* -----------------------------------------------------------------------------
|
||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||
|
||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
||||
All rights reserved.
|
||||
© 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.
|
||||
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.
|
||||
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.
|
||||
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.
|
||||
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:
|
||||
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 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
|
||||
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.
|
||||
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.
|
||||
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."
|
||||
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.
|
||||
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.
|
||||
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.
|
||||
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
|
||||
|
||||
@@ -79,32 +90,29 @@ Am Wolfsmantel 33
|
||||
|
||||
www.iis.fraunhofer.de/amm
|
||||
amm-info@iis.fraunhofer.de
|
||||
----------------------------------------------------------------------------------------------------------- */
|
||||
----------------------------------------------------------------------------- */
|
||||
|
||||
/*************************** Fraunhofer IIS FDK Tools **********************
|
||||
/******************* Library for basic calculation routines ********************
|
||||
|
||||
Author(s): Stefan Gewinner
|
||||
|
||||
Description: fixed point multiplication
|
||||
|
||||
******************************************************************************/
|
||||
*******************************************************************************/
|
||||
|
||||
#if !defined(__FIXMUL_H__)
|
||||
#define __FIXMUL_H__
|
||||
#if !defined(FIXMUL_H)
|
||||
#define FIXMUL_H
|
||||
|
||||
#include "FDK_archdef.h"
|
||||
#include "machine_type.h"
|
||||
|
||||
|
||||
#if defined(__arm__)
|
||||
#include "arm/fixmul_arm.h"
|
||||
|
||||
#elif defined(__aarch64__) || defined(__AARCH64EL__)
|
||||
#include "aarch64/fixmul_aarch64.h"
|
||||
|
||||
#elif defined(__mips__) /* cppp replaced: elif */
|
||||
#elif defined(__mips__)
|
||||
#include "mips/fixmul_mips.h"
|
||||
|
||||
#elif defined(__x86__) /* cppp replaced: elif */
|
||||
#elif defined(__x86__)
|
||||
#include "x86/fixmul_x86.h"
|
||||
|
||||
#elif defined(__powerpc__)
|
||||
@@ -120,173 +128,171 @@ amm-info@iis.fraunhofer.de
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2_DD)
|
||||
#define FUNCTION_fixmuldiv2_DD
|
||||
#if defined(_MSC_VER) || defined(__CC_ARM) || defined(__ANALOG_EXTENSIONS__) || defined(__TI_COMPILER_VERSION__)
|
||||
#pragma message ("Extremely slow implementation of fixmuldiv2_DD !!")
|
||||
#else
|
||||
#warning Extremely slow implementation of fixmuldiv2_DD !!
|
||||
#endif
|
||||
inline LONG fixmuldiv2_DD (const LONG a, const LONG b)
|
||||
{
|
||||
return (LONG) ((((INT64)a) * b) >> 32) ;
|
||||
inline LONG fixmuldiv2_DD(const LONG a, const LONG b) {
|
||||
return (LONG)((((INT64)a) * b) >> 32);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2BitExact_DD)
|
||||
#define FUNCTION_fixmuldiv2BitExact_DD
|
||||
#if defined(_MSC_VER) || defined(__CC_ARM) || defined(__ANALOG_EXTENSIONS__) || defined(__TI_COMPILER_VERSION__)
|
||||
#pragma message ("Extremely slow implementation of fixmuldiv2BitExact_DD !!")
|
||||
#else
|
||||
#warning Extremely slow implementation of fixmuldiv2BitExact_DD !!
|
||||
#endif
|
||||
inline LONG fixmuldiv2BitExact_DD (const LONG a, const LONG b)
|
||||
{
|
||||
return (LONG) ((((INT64)a) * b) >> 32) ;
|
||||
inline LONG fixmuldiv2BitExact_DD(const LONG a, const LONG b) {
|
||||
return (LONG)((((INT64)a) * b) >> 32);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmul_DD)
|
||||
#define FUNCTION_fixmul_DD
|
||||
inline LONG fixmul_DD (const LONG a, const LONG b)
|
||||
{ return fixmuldiv2_DD (a, b) << 1 ; }
|
||||
inline LONG fixmul_DD(const LONG a, const LONG b) {
|
||||
return fixmuldiv2_DD(a, b) << 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmulBitExact_DD)
|
||||
#define FUNCTION_fixmulBitExact_DD
|
||||
#if defined(_MSC_VER) || defined(__CC_ARM) || defined(__ANALOG_EXTENSIONS__) || defined(__TI_COMPILER_VERSION__) || defined(__XTENSA__)
|
||||
#pragma message ("Extremely slow implementation of fixmulBitExact_DD !!")
|
||||
#else
|
||||
#warning Extremely slow implementation of fixmulBitExact_DD !!
|
||||
#endif
|
||||
inline LONG fixmulBitExact_DD (const LONG a, const LONG b)
|
||||
{
|
||||
return ( (LONG) ((((INT64)a) * b) >> 32) ) << 1;
|
||||
inline LONG fixmulBitExact_DD(const LONG a, const LONG b) {
|
||||
return ((LONG)((((INT64)a) * b) >> 32)) << 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2_SS)
|
||||
#define FUNCTION_fixmuldiv2_SS
|
||||
inline LONG fixmuldiv2_SS (const SHORT a, const SHORT b)
|
||||
{ return ((LONG)a*b); }
|
||||
inline LONG fixmuldiv2_SS(const SHORT a, const SHORT b) {
|
||||
return ((LONG)a * b);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmul_SS)
|
||||
#define FUNCTION_fixmul_SS
|
||||
inline LONG fixmul_SS (const SHORT a, const SHORT b)
|
||||
{ return (a*b) <<1; }
|
||||
inline LONG fixmul_SS(const SHORT a, const SHORT b) { return (a * b) << 1; }
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2_SD)
|
||||
#define FUNCTION_fixmuldiv2_SD
|
||||
inline LONG fixmuldiv2_SD (const SHORT a, const LONG b)
|
||||
inline LONG fixmuldiv2_SD(const SHORT a, const LONG b)
|
||||
#ifdef FUNCTION_fixmuldiv2_DS
|
||||
{ return fixmuldiv2_DS(b, a); }
|
||||
{
|
||||
return fixmuldiv2_DS(b, a);
|
||||
}
|
||||
#else
|
||||
{ return fixmuldiv2_DD(FX_SGL2FX_DBL(a), b); }
|
||||
{
|
||||
return fixmuldiv2_DD(FX_SGL2FX_DBL(a), b);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2_DS)
|
||||
#define FUNCTION_fixmuldiv2_DS
|
||||
inline LONG fixmuldiv2_DS (const LONG a, const SHORT b)
|
||||
inline LONG fixmuldiv2_DS(const LONG a, const SHORT b)
|
||||
#ifdef FUNCTION_fixmuldiv2_SD
|
||||
{ return fixmuldiv2_SD(b, a); }
|
||||
{
|
||||
return fixmuldiv2_SD(b, a);
|
||||
}
|
||||
#else
|
||||
{ return fixmuldiv2_DD(a, FX_SGL2FX_DBL(b)); }
|
||||
{
|
||||
return fixmuldiv2_DD(a, FX_SGL2FX_DBL(b));
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2BitExact_SD)
|
||||
#define FUNCTION_fixmuldiv2BitExact_SD
|
||||
inline LONG fixmuldiv2BitExact_SD (const SHORT a, const LONG b)
|
||||
inline LONG fixmuldiv2BitExact_SD(const SHORT a, const LONG b)
|
||||
#ifdef FUNCTION_fixmuldiv2BitExact_DS
|
||||
{ return fixmuldiv2BitExact_DS(b, a); }
|
||||
{
|
||||
return fixmuldiv2BitExact_DS(b, a);
|
||||
}
|
||||
#else
|
||||
{ return (LONG) ((((INT64)a) * b) >> 16) ; }
|
||||
{
|
||||
return (LONG)((((INT64)a) * b) >> 16);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmuldiv2BitExact_DS)
|
||||
#define FUNCTION_fixmuldiv2BitExact_DS
|
||||
inline LONG fixmuldiv2BitExact_DS (const LONG a, const SHORT b)
|
||||
inline LONG fixmuldiv2BitExact_DS(const LONG a, const SHORT b)
|
||||
#ifdef FUNCTION_fixmuldiv2BitExact_SD
|
||||
{ return fixmuldiv2BitExact_SD(b, a); }
|
||||
{
|
||||
return fixmuldiv2BitExact_SD(b, a);
|
||||
}
|
||||
#else
|
||||
{ return (LONG) ((((INT64)a) * b) >> 16) ; }
|
||||
{
|
||||
return (LONG)((((INT64)a) * b) >> 16);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmul_SD)
|
||||
#define FUNCTION_fixmul_SD
|
||||
inline LONG fixmul_SD (const SHORT a, const LONG b) {
|
||||
inline LONG fixmul_SD(const SHORT a, const LONG b) {
|
||||
#ifdef FUNCTION_fixmul_DS
|
||||
return fixmul_SD(b, a);
|
||||
return fixmul_DS(b, a);
|
||||
#else
|
||||
return fixmuldiv2_SD (a, b) << 1 ;
|
||||
return fixmuldiv2_SD(a, b) << 1;
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmul_DS)
|
||||
#define FUNCTION_fixmul_DS
|
||||
inline LONG fixmul_DS (const LONG a, const SHORT b) {
|
||||
inline LONG fixmul_DS(const LONG a, const SHORT b) {
|
||||
#ifdef FUNCTION_fixmul_SD
|
||||
return fixmul_SD(b, a);
|
||||
#else
|
||||
return fixmuldiv2_DS(a, b) << 1 ;
|
||||
return fixmuldiv2_DS(a, b) << 1;
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmulBitExact_SD)
|
||||
#define FUNCTION_fixmulBitExact_SD
|
||||
inline LONG fixmulBitExact_SD (const SHORT a, const LONG b)
|
||||
inline LONG fixmulBitExact_SD(const SHORT a, const LONG b)
|
||||
#ifdef FUNCTION_fixmulBitExact_DS
|
||||
{ return fixmulBitExact_DS(b, a); }
|
||||
{
|
||||
return fixmulBitExact_DS(b, a);
|
||||
}
|
||||
#else
|
||||
{ return (LONG) (((((INT64)a) * b) >> 16) << 1); }
|
||||
{
|
||||
return (LONG)(((((INT64)a) * b) >> 16) << 1);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixmulBitExact_DS)
|
||||
#define FUNCTION_fixmulBitExact_DS
|
||||
inline LONG fixmulBitExact_DS (const LONG a, const SHORT b)
|
||||
inline LONG fixmulBitExact_DS(const LONG a, const SHORT b)
|
||||
#ifdef FUNCTION_fixmulBitExact_SD
|
||||
{ return fixmulBitExact_SD(b, a); }
|
||||
{
|
||||
return fixmulBitExact_SD(b, a);
|
||||
}
|
||||
#else
|
||||
{ return (LONG) (((((INT64)a) * b) >> 16) << 1); }
|
||||
{
|
||||
return (LONG)(((((INT64)a) * b) >> 16) << 1);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
#if !defined(FUNCTION_fixpow2div2_D)
|
||||
#ifdef ARCH_WA_16BITMULT
|
||||
#error Fallback for fixpow2div2_D is not 16 bit safe !
|
||||
#endif
|
||||
#define FUNCTION_fixpow2div2_D
|
||||
inline LONG fixpow2div2_D (const LONG a)
|
||||
{ return fixmuldiv2_DD(a, a); }
|
||||
inline LONG fixpow2div2_D(const LONG a) { return fixmuldiv2_DD(a, a); }
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixpow2_D)
|
||||
#ifdef ARCH_WA_16BITMULT
|
||||
#error Fallback for fixpow2_D is not 16 bit safe !
|
||||
#endif
|
||||
#define FUNCTION_fixpow2_D
|
||||
inline LONG fixpow2_D (const LONG a)
|
||||
{ return fixpow2div2_D(a)<<1; }
|
||||
inline LONG fixpow2_D(const LONG a) { return fixpow2div2_D(a) << 1; }
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixpow2div2_S)
|
||||
#define FUNCTION_fixpow2div2_S
|
||||
inline LONG fixpow2div2_S (const SHORT a)
|
||||
{ return fixmuldiv2_SS(a, a); }
|
||||
inline LONG fixpow2div2_S(const SHORT a) { return fixmuldiv2_SS(a, a); }
|
||||
#endif
|
||||
|
||||
#if !defined(FUNCTION_fixpow2_S)
|
||||
#define FUNCTION_fixpow2_S
|
||||
inline LONG fixpow2_S (const SHORT a)
|
||||
{ return fixpow2div2_S(a)<<1; }
|
||||
inline LONG fixpow2_S(const SHORT a) {
|
||||
LONG result = fixpow2div2_S(a) << 1;
|
||||
return result ^ (result >> 31);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif /* __FIXMUL_H__ */
|
||||
#endif /* FIXMUL_H */
|
||||
|
||||
Reference in New Issue
Block a user