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Diffstat (limited to 'libAACdec/src/aac_ram.cpp')
| -rw-r--r-- | libAACdec/src/aac_ram.cpp | 195 |
1 files changed, 119 insertions, 76 deletions
diff --git a/libAACdec/src/aac_ram.cpp b/libAACdec/src/aac_ram.cpp index 1ff289b..e13167d 100644 --- a/libAACdec/src/aac_ram.cpp +++ b/libAACdec/src/aac_ram.cpp @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- 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. +© 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. - -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. +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: +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 @@ -79,13 +90,15 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ + +/**************************** AAC decoder library ****************************** -/***************************** MPEG-4 AAC Decoder ************************** + Author(s): Josef Hoepfl - Author(s): Josef Hoepfl + Description: -******************************************************************************/ +*******************************************************************************/ #include "aac_ram.h" #include "aac_rom.h" @@ -93,10 +106,17 @@ amm-info@iis.fraunhofer.de #define WORKBUFFER1_TAG 0 #define WORKBUFFER2_TAG 1 -/*! The structure AAC_DECODER_INSTANCE is the top level structure holding all decoder configurations, - handles and structs. +#define WORKBUFFER3_TAG 4 +#define WORKBUFFER4_TAG 5 + +#define WORKBUFFER5_TAG 6 + +#define WORKBUFFER6_TAG 7 + +/*! The structure AAC_DECODER_INSTANCE is the top level structure holding all + decoder configurations, handles and structs. */ -C_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE, 1) +C_ALLOC_MEM(AacDecoder, struct AAC_DECODER_INSTANCE, 1) /*! \name StaticAacData @@ -105,21 +125,36 @@ C_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE, 1) */ /* @{ */ -/*! The structure CAacDecoderStaticChannelInfo contains the static sideinfo which is needed - for the decoding of one aac channel. <br> - Dimension: #AacDecoderChannels */ +/*! The structure CAacDecoderStaticChannelInfo contains the static sideinfo + which is needed for the decoding of one aac channel. <br> Dimension: + #AacDecoderChannels */ C_ALLOC_MEM2(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo, 1, (8)) -/*! The structure CAacDecoderChannelInfo contains the dynamic sideinfo which is needed - for the decoding of one aac channel. <br> - Dimension: #AacDecoderChannels */ +/*! The structure CAacDecoderChannelInfo contains the dynamic sideinfo which is + needed for the decoding of one aac channel. <br> Dimension: + #AacDecoderChannels */ C_AALLOC_MEM2(AacDecoderChannelInfo, CAacDecoderChannelInfo, 1, (8)) /*! Overlap buffer */ -C_ALLOC_MEM2(OverlapBuffer, FIXP_DBL, OverlapBufferSize, (8)) +C_AALLOC_MEM2(OverlapBuffer, FIXP_DBL, OverlapBufferSize, (8)) C_ALLOC_MEM(DrcInfo, CDrcInfo, 1) +/*! The structure CpePersistentData holds the persistent data shared by both + channels of a CPE. <br> It needs to be allocated for each CPE. <br> + Dimension: 1 */ +C_ALLOC_MEM(CpePersistentData, CpePersistentData, 1) + +/*! The structure CCplxPredictionData holds data for complex stereo prediction. + <br> Dimension: 1 + */ +C_ALLOC_MEM(CplxPredictionData, CCplxPredictionData, 1) + +/*! The buffer holds time samples for the crossfade in case of an USAC DASH IPF + config change Dimension: (8) + */ +C_ALLOC_MEM2(TimeDataFlush, INT_PCM, TIME_DATA_FLUSH_SIZE, (8)) + /* @} */ /*! @@ -128,15 +163,23 @@ C_ALLOC_MEM(DrcInfo, CDrcInfo, 1) Dynamic memory areas, might be reused in other algorithm sections, e.g. the sbr decoder */ -C_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL, ((8)*1024), SECT_DATA_L2, WORKBUFFER2_TAG) - - -C_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1, 1, SECT_DATA_L1, WORKBUFFER1_TAG) - -/* @{ */ - - -/* @} */ - - +/* Take into consideration to make use of the WorkBufferCore[3/4] for decoder + * configurations with more than 2 channels */ +C_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL, ((8) * 1024), SECT_DATA_L2, + WORKBUFFER2_TAG) + +C_ALLOC_MEM_OVERLAY(WorkBufferCore3, FIXP_DBL, WB_SECTION_SIZE, SECT_DATA_L2, + WORKBUFFER3_TAG) +C_AALLOC_MEM(WorkBufferCore4, FIXP_DBL, WB_SECTION_SIZE) +C_ALLOC_MEM_OVERLAY(WorkBufferCore6, SCHAR, + fMax((INT)(sizeof(FIXP_DBL) * WB_SECTION_SIZE), + (INT)sizeof(CAacDecoderCommonData)), + SECT_DATA_L2, WORKBUFFER6_TAG) + +C_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1, 1, SECT_DATA_L1, + WORKBUFFER1_TAG) + +/* double buffer size needed for de-/interleaving */ +C_ALLOC_MEM_OVERLAY(WorkBufferCore5, PCM_DEC, (8) * (1024 * 4) * 2, + SECT_DATA_EXTERN, WORKBUFFER5_TAG) |