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diff --git a/libFDK/src/scale.cpp b/libFDK/src/scale.cpp deleted file mode 100644 index 5829443..0000000 --- a/libFDK/src/scale.cpp +++ /dev/null @@ -1,461 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 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: Scaling operations - -******************************************************************************/ - -#include "common_fix.h" - -#include "genericStds.h" - -/************************************************** - * Inline definitions - **************************************************/ - -#define SCALE_INLINE inline - - -#if defined(__mips__) /* cppp replaced: elif */ -#include "mips/scale.cpp" - -#elif defined(__arm__) -#include "arm/scale_arm.cpp" - -#endif - -#ifndef FUNCTION_scaleValues_SGL -/*! - * - * \brief Multiply input vector by \f$ 2^{scalefactor} \f$ - * \param len must be larger than 4 - * \return void - * - */ -#define FUNCTION_scaleValues_SGL -SCALE_INLINE -void scaleValues(FIXP_SGL *vector, /*!< Vector */ - INT len, /*!< Length */ - INT scalefactor /*!< Scalefactor */ - ) -{ - INT i; - - /* Return if scalefactor is Zero */ - if (scalefactor==0) return; - - if(scalefactor > 0){ - scalefactor = fixmin_I(scalefactor,(INT)(DFRACT_BITS-1)); - for (i = len&3; i--; ) - { - *(vector++) <<= scalefactor; - } - for (i = len>>2; i--; ) - { - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - } - } else { - INT negScalefactor = fixmin_I(-scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *(vector++) >>= negScalefactor; - } - for (i = len>>2; i--; ) - { - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - } - } -} -#endif - -#ifndef FUNCTION_scaleValues_DBL -/*! - * - * \brief Multiply input vector by \f$ 2^{scalefactor} \f$ - * \param len must be larger than 4 - * \return void - * - */ -#define FUNCTION_scaleValues_DBL -SCALE_INLINE -void scaleValues(FIXP_DBL *vector, /*!< Vector */ - INT len, /*!< Length */ - INT scalefactor /*!< Scalefactor */ - ) -{ - INT i; - - /* Return if scalefactor is Zero */ - if (scalefactor==0) return; - - if(scalefactor > 0){ - scalefactor = fixmin_I(scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *(vector++) <<= scalefactor; - } - for (i = len>>2; i--; ) - { - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - *(vector++) <<= scalefactor; - } - } else { - INT negScalefactor = fixmin_I(-scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *(vector++) >>= negScalefactor; - } - for (i = len>>2; i--; ) - { - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - *(vector++) >>= negScalefactor; - } - } -} -#endif - -#ifndef FUNCTION_scaleValues_DBLDBL -/*! - * - * \brief Multiply input vector src by \f$ 2^{scalefactor} \f$ - * and place result into dst - * \param dst detination buffer - * \param src source buffer - * \param len must be larger than 4 - * \param scalefactor amount of left shifts to be applied - * \return void - * - */ -#define FUNCTION_scaleValues_DBLDBL -SCALE_INLINE -void scaleValues(FIXP_DBL *dst, /*!< dst Vector */ - const FIXP_DBL *src, /*!< src Vector */ - INT len, /*!< Length */ - INT scalefactor /*!< Scalefactor */ - ) -{ - INT i; - - /* Return if scalefactor is Zero */ - if (scalefactor==0) { - if (dst != src) - FDKmemmove(dst, src, len*sizeof(FIXP_DBL)); - } - else { - - if(scalefactor > 0){ - scalefactor = fixmin_I(scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *(dst++) = *(src++) << scalefactor; - } - for (i = len>>2; i--; ) - { - *(dst++) = *(src++) << scalefactor; - *(dst++) = *(src++) << scalefactor; - *(dst++) = *(src++) << scalefactor; - *(dst++) = *(src++) << scalefactor; - } - } else { - INT negScalefactor = fixmin_I(-scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *(dst++) = *(src++) >> negScalefactor; - } - for (i = len>>2; i--; ) - { - *(dst++) = *(src++) >> negScalefactor; - *(dst++) = *(src++) >> negScalefactor; - *(dst++) = *(src++) >> negScalefactor; - *(dst++) = *(src++) >> negScalefactor; - } - } - } -} -#endif - -#ifndef FUNCTION_scaleValuesWithFactor_DBL -/*! - * - * \brief Multiply input vector by \f$ 2^{scalefactor} \f$ - * \param len must be larger than 4 - * \return void - * - */ -#define FUNCTION_scaleValuesWithFactor_DBL -SCALE_INLINE -void scaleValuesWithFactor( - FIXP_DBL *vector, - FIXP_DBL factor, - INT len, - INT scalefactor - ) -{ - INT i; - - /* Compensate fMultDiv2 */ - scalefactor++; - - if(scalefactor > 0){ - scalefactor = fixmin_I(scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *vector = fMultDiv2(*vector, factor) << scalefactor; - vector++; - } - for (i = len>>2; i--; ) - { - *vector = fMultDiv2(*vector, factor) << scalefactor; vector++; - *vector = fMultDiv2(*vector, factor) << scalefactor; vector++; - *vector = fMultDiv2(*vector, factor) << scalefactor; vector++; - *vector = fMultDiv2(*vector, factor) << scalefactor; vector++; - } - } else { - INT negScalefactor = fixmin_I(-scalefactor,(INT)DFRACT_BITS-1); - for (i = len&3; i--; ) - { - *vector = fMultDiv2(*vector, factor) >> negScalefactor; - vector++; - } - for (i = len>>2; i--; ) - { - *vector = fMultDiv2(*vector, factor) >> negScalefactor; vector++; - *vector = fMultDiv2(*vector, factor) >> negScalefactor; vector++; - *vector = fMultDiv2(*vector, factor) >> negScalefactor; vector++; - *vector = fMultDiv2(*vector, factor) >> negScalefactor; vector++; - } - } -} -#endif /* FUNCTION_scaleValuesWithFactor_DBL */ - - -/******************************************* - -IMPORTANT NOTE for usage of getScalefactor() - -If the input array contains negative values too, then these functions may sometimes return -the actual maximum value minus 1, due to the nature of the applied algorithm. -So be careful with possible fractional -1 values that may lead to overflows when being fPow2()'ed. - -********************************************/ - - - -#ifndef FUNCTION_getScalefactorShort -/*! - * - * \brief Calculate max possible scale factor for input vector of shorts - * - * \return Maximum scale factor / possible left shift - * - */ -#define FUNCTION_getScalefactorShort -SCALE_INLINE -INT getScalefactorShort(const SHORT *vector, /*!< Pointer to input vector */ - INT len /*!< Length of input vector */ - ) -{ - INT i; - SHORT temp, maxVal = 0; - - for(i=len;i!=0;i--){ - temp = (SHORT)(*vector++); - maxVal |= (temp^(temp>>(SHORT_BITS-1))); - } - - return fixmax_I((INT)0,(INT)(fixnormz_D((INT)maxVal) - (INT)1 - (INT)(DFRACT_BITS - SHORT_BITS))); -} -#endif - -#ifndef FUNCTION_getScalefactorPCM -/*! - * - * \brief Calculate max possible scale factor for input vector of shorts - * - * \return Maximum scale factor - * - */ -#define FUNCTION_getScalefactorPCM -SCALE_INLINE -INT getScalefactorPCM(const INT_PCM *vector, /*!< Pointer to input vector */ - INT len, /*!< Length of input vector */ - INT stride - ) -{ - INT i; - INT_PCM temp, maxVal = 0; - - for(i=len;i!=0;i--){ - temp = (INT_PCM)(*vector); vector+=stride; - maxVal |= (temp^(temp>>((sizeof(INT_PCM)*8)-1))); - } - return fixmax_I((INT)0,(INT)(fixnormz_D((INT)maxVal) - (INT)1 - (INT)(DFRACT_BITS - SAMPLE_BITS))); -} -#endif - -#ifndef FUNCTION_getScalefactorShort -/*! - * - * \brief Calculate max possible scale factor for input vector of shorts - * \param stride, item increment between vector members. - * \return Maximum scale factor - * - */ -#define FUNCTION_getScalefactorShort -SCALE_INLINE -INT getScalefactorShort(const SHORT *vector, /*!< Pointer to input vector */ - INT len, /*!< Length of input vector */ - INT stride - ) -{ - INT i; - SHORT temp, maxVal = 0; - - for(i=len;i!=0;i--){ - temp = (SHORT)(*vector); vector+=stride; - maxVal |= (temp^(temp>>(SHORT_BITS-1))); - } - - return fixmax_I((INT)0,(INT)(fixnormz_D((INT)maxVal) - (INT)1 - (INT)(DFRACT_BITS - SHORT_BITS))); -} -#endif - -#ifndef FUNCTION_getScalefactor_DBL -/*! - * - * \brief Calculate max possible scale factor for input vector - * - * \return Maximum scale factor - * - * This function can constitute a significant amount of computational complexity - very much depending on the - * bitrate. Since it is a rather small function, effective assembler optimization might be possible. - * - */ -#define FUNCTION_getScalefactor_DBL -SCALE_INLINE -INT getScalefactor(const FIXP_DBL *vector, /*!< Pointer to input vector */ - INT len) /*!< Length of input vector */ -{ - INT i; - FIXP_DBL temp, maxVal = (FIXP_DBL)0; - - for(i=len;i!=0;i--){ - temp = (LONG)(*vector++); - maxVal |= (FIXP_DBL)((LONG)temp^(LONG)(temp>>(DFRACT_BITS-1))); - } - - return fixmax_I((INT)0,(INT)(fixnormz_D(maxVal) - 1)); -} -#endif - -#ifndef FUNCTION_getScalefactor_SGL -#define FUNCTION_getScalefactor_SGL -SCALE_INLINE -INT getScalefactor(const FIXP_SGL *vector, /*!< Pointer to input vector */ - INT len) /*!< Length of input vector */ -{ - INT i; - SHORT temp, maxVal = (FIXP_SGL)0; - - for(i=len;i!=0;i--){ - temp = (SHORT)(*vector++); - maxVal |= (temp^(temp>>(FRACT_BITS-1))); - } - - return fixmax_I((INT)0,(INT)(fixnormz_D(FX_SGL2FX_DBL((FIXP_SGL)maxVal)) - 1)); -} -#endif - |