Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 223 insertions, 0 deletions

diff --git a/libFDK/include/fixmul.h b/libFDK/include/fixmul.h
new file mode 100644
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+++ b/libFDK/include/fixmul.h
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+/***************************  Fraunhofer IIS FDK Tools  **********************
+
+                        (C) Copyright Fraunhofer IIS (1999)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   $Id$
+   Author(s):   Stefan Gewinner
+   Description: fixed point multiplication
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+#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(__mips__)	/* cppp replaced: elif */
+#include "mips/fixmul_mips.h"
+
+#elif defined(__x86__)	/* cppp replaced: elif */
+#include "x86/fixmul_x86.h"
+
+#endif /* all cores */
+
+/*************************************************************************
+ *************************************************************************
+    Software fallbacks for missing functions
+**************************************************************************
+**************************************************************************/
+
+#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) ;
+}
+#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) ;
+}
+#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 ; }
+#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;
+}
+#endif
+
+#if !defined(FUNCTION_fixmuldiv2_SS)
+#define FUNCTION_fixmuldiv2_SS
+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; }
+#endif
+
+#if !defined(FUNCTION_fixmuldiv2_SD)
+#define FUNCTION_fixmuldiv2_SD
+inline LONG fixmuldiv2_SD (const SHORT a, const LONG b)
+#ifdef FUNCTION_fixmuldiv2_DS
+  { return fixmuldiv2_DS(b, a); }
+#else
+  { 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)
+#ifdef FUNCTION_fixmuldiv2_SD
+  { return fixmuldiv2_SD(b, a); }
+#else
+  { 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)
+#ifdef FUNCTION_fixmuldiv2BitExact_DS
+  { return fixmuldiv2BitExact_DS(b, a); }
+#else
+  { 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)
+#ifdef FUNCTION_fixmuldiv2BitExact_SD
+  { return fixmuldiv2BitExact_SD(b, a); }
+#else
+  { 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) {
+#ifdef FUNCTION_fixmul_DS
+  return fixmul_SD(b, a);
+#else
+  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) {
+#ifdef FUNCTION_fixmul_SD
+  return fixmul_SD(b, a);
+#else
+  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)
+#ifdef FUNCTION_fixmulBitExact_DS
+  { return fixmulBitExact_DS(b, a); }
+#else
+  { 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)
+#ifdef FUNCTION_fixmulBitExact_SD
+  { return fixmulBitExact_SD(b, a); }
+#else
+  { 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); }
+#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; }
+#endif
+
+#if !defined(FUNCTION_fixpow2div2_S)
+#define FUNCTION_fixpow2div2_S
+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; }
+#endif
+
+
+#endif /* __FIXMUL_H__ */