| /* ----------------------------------------------------------------------------- | |
| Software License for The Fraunhofer FDK AAC Codec Library for Android | |
| © Copyright 1995 - 2020 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 | |
| ----------------------------------------------------------------------------- */ | |
| /**************************** AAC decoder library ****************************** | |
| Author(s): Josef Hoepfl | |
| Description: | |
| *******************************************************************************/ | |
| #include "aac_ram.h" | |
| #include "aac_rom.h" | |
| #define WORKBUFFER1_TAG 0 | |
| #define WORKBUFFER2_TAG 1 | |
| #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, struct AAC_DECODER_INSTANCE, 1) | |
| /*! | |
| \name StaticAacData | |
| Static memory areas, must not be overwritten in other sections of the decoder | |
| */ | |
| /* @{ */ | |
| /*! 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 */ | |
| C_AALLOC_MEM2(AacDecoderChannelInfo, CAacDecoderChannelInfo, 1, (8)) | |
| /*! Overlap buffer */ | |
| 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, PCM_DEC, TIME_DATA_FLUSH_SIZE, (8)) | |
| /* @} */ | |
| /*! | |
| \name DynamicAacData | |
| Dynamic memory areas, might be reused in other algorithm sections, | |
| e.g. the sbr decoder | |
| */ | |
| /* 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(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) |