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Diffstat (limited to 'libAACenc/src/aacEnc_ram.h')
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diff --git a/libAACenc/src/aacEnc_ram.h b/libAACenc/src/aacEnc_ram.h new file mode 100644 index 0000000..918e279 --- /dev/null +++ b/libAACenc/src/aacEnc_ram.h @@ -0,0 +1,226 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 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 +----------------------------------------------------------------------------------------------------------- */ + +/****************************************************************************** + + Initial authors: M. Lohwasser, M. Gayer + Contents/description: + +******************************************************************************/ + +/*! + \file + \brief Memory layout + \author Markus Lohwasser +*/ + +#ifndef AAC_ENC_RAM_H +#define AAC_ENC_RAM_H + +#include "common_fix.h" + +#include "aacenc.h" +#include "psy_data.h" +#include "interface.h" +#include "psy_main.h" +#include "bitenc.h" +#include "bit_cnt.h" +#include "psy_const.h" + + #define OUTPUTBUFFER_SIZE (8192) /*!< Output buffer size has to be at least 6144 bits per channel (768 bytes). FDK bitbuffer implementation expects buffer of size 2^n. */ + + +/* + Moved AAC_ENC struct definition from aac_enc.cpp into aacEnc_ram.h to get size and respective + static memory in aacEnc_ram.cpp. + aac_enc.h is the outward visible header file and putting the struct into would cause necessity + of additional visible header files outside library. +*/ + +/* define hBitstream size: max AAC framelength is 6144 bits/channel */ +/*#define BUFFER_BITSTR_SIZE ((6400*(6)/bbWordSize) +((bbWordSize - 1) / bbWordSize))*/ + +struct AAC_ENC { + + AACENC_CONFIG *config; + + INT ancillaryBitsPerFrame; /* ancillary bits per frame calculated from ancillary rate */ + + CHANNEL_MAPPING channelMapping; + + QC_STATE *qcKernel; + QC_OUT *qcOut[(1)]; + + PSY_OUT *psyOut[(1)]; + PSY_INTERNAL *psyKernel; + + /* lifetime vars */ + + CHANNEL_MODE encoderMode; + INT bandwidth90dB; + AACENC_BITRATE_MODE bitrateMode; + + INT dontWriteAdif; /* use: write ADIF header only before 1st frame */ + + FIXP_DBL *dynamic_RAM; + + + INT maxChannels; /* used while allocation */ + INT maxElements; + INT maxFrames; + + AUDIO_OBJECT_TYPE aot; /* AOT to be used while encoding. */ + +} ; + +#define maxSize(a,b) ( ((a)>(b)) ? (a) : (b) ) + +#define BIT_LOOK_UP_SIZE ( sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)) ) +#define MERGE_GAIN_LOOK_UP_SIZE ( sizeof(INT)*MAX_SFB_LONG ) + + + +/* Dynamic RAM - Allocation */ +/* + ++++++++++++++++++++++++++++++++++++++++++++ + | P_BUF_0 | P_BUF_1 | + ++++++++++++++++++++++++++++++++++++++++++++ + | QC_OUT_CH | PSY_DYN | + ++++++++++++++++++++++++++++++++++++++++++++ + | | BitLookUp+MergeGainLookUp | + ++++++++++++++++++++++++++++++++++++++++++++ + | | Bitstream output buffer | + ++++++++++++++++++++++++++++++++++++++++++++ +*/ + +#define BUF_SIZE_0 ( ALIGN_SIZE(sizeof(QC_OUT_CHANNEL)*(6)) ) +#define BUF_SIZE_1 ( ALIGN_SIZE(maxSize(sizeof(PSY_DYNAMIC), \ + (BIT_LOOK_UP_SIZE+MERGE_GAIN_LOOK_UP_SIZE))) ) + +#define P_BUF_0 ( 0 ) +#define P_BUF_1 ( P_BUF_0 + BUF_SIZE_0 ) + +#define AAC_ENC_DYN_RAM_SIZE ( BUF_SIZE_0 + BUF_SIZE_1 ) + + + H_ALLOC_MEM (AACdynamic_RAM, FIXP_DBL) +/* + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +END - Dynamic RAM - Allocation */ + +/* + See further Memory Allocation details in aacEnc_ram.cpp +*/ + H_ALLOC_MEM (Ram_aacEnc_AacEncoder, AAC_ENC) + + H_ALLOC_MEM (Ram_aacEnc_PsyElement, PSY_ELEMENT) + + H_ALLOC_MEM (Ram_aacEnc_PsyInternal, PSY_INTERNAL) + H_ALLOC_MEM (Ram_aacEnc_PsyStatic, PSY_STATIC) + H_ALLOC_MEM (Ram_aacEnc_PsyInputBuffer, INT_PCM) + + PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic (int n, UCHAR* dynamic_RAM); + H_ALLOC_MEM (Ram_bsOutbuffer, UCHAR) + + H_ALLOC_MEM (Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL) + + H_ALLOC_MEM (Ram_aacEnc_PsyOut, PSY_OUT) + H_ALLOC_MEM (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT) + + H_ALLOC_MEM (Ram_aacEnc_QCstate, QC_STATE) + H_ALLOC_MEM (Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE) + + H_ALLOC_MEM (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT) + H_ALLOC_MEM (Ram_aacEnc_ElementBits, ELEMENT_BITS) + H_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE) + + INT *GetRam_aacEnc_BitLookUp(int n, UCHAR* dynamic_RAM); + INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR* dynamic_RAM); + QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel (int n, UCHAR* dynamic_RAM); + + H_ALLOC_MEM (Ram_aacEnc_QCout, QC_OUT) + H_ALLOC_MEM (Ram_aacEnc_QCelement, QC_OUT_ELEMENT) + + +#endif /* #ifndef AAC_ENC_RAM_H */ + |