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authorThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
committerThe Android Open Source Project <initial-contribution@android.com>2012-07-11 10:15:24 -0700
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tree57f3d390ebb0782cc0de0fb984c8ea7e45b4f386 /libAACenc/src/aacEnc_ram.cpp
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+
+/* -----------------------------------------------------------------------------------------------------------
+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
+*/
+
+#include "aacEnc_ram.h"
+
+ C_ALLOC_MEM (AACdynamic_RAM, FIXP_DBL, AAC_ENC_DYN_RAM_SIZE/sizeof(FIXP_DBL))
+
+/*
+ Static memory areas, must not be overwritten in other sections of the decoder !
+*/
+
+/*
+ The structure AacEncoder contains all Encoder structures.
+*/
+
+C_ALLOC_MEM (Ram_aacEnc_AacEncoder, AAC_ENC, 1)
+
+
+/*
+ The structure PSY_INTERNAl contains all psych configuration and data pointer.
+ * PsyStatic holds last and current Psych data.
+ * PsyInputBuffer contains time input. Signal is needed at the beginning of Psych.
+ Memory can be reused after signal is in time domain.
+ * PsyData contains spectral, nrg and threshold information. Necessary data are
+ copied into PsyOut, so memory is available after leaving psych.
+ * TnsData, ChaosMeasure, PnsData are temporarily necessary, e.g. use memory from
+ PsyInputBuffer.
+*/
+
+C_ALLOC_MEM2 (Ram_aacEnc_PsyElement, PSY_ELEMENT, 1, (6))
+
+C_ALLOC_MEM (Ram_aacEnc_PsyInternal, PSY_INTERNAL, 1)
+C_ALLOC_MEM2 (Ram_aacEnc_PsyStatic, PSY_STATIC, 1, (6))
+
+C_ALLOC_MEM2 (Ram_aacEnc_PsyInputBuffer, INT_PCM, MAX_INPUT_BUFFER_SIZE, (6))
+
+ PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic (int n, UCHAR* dynamic_RAM) {
+ FDK_ASSERT(dynamic_RAM!=0);
+ return ((PSY_DYNAMIC*) (dynamic_RAM + P_BUF_1 + n*sizeof(PSY_DYNAMIC)));
+ }
+
+ C_ALLOC_MEM (Ram_bsOutbuffer, UCHAR, OUTPUTBUFFER_SIZE)
+
+/*
+ The structure PSY_OUT holds all psychoaccoustic data needed
+ in quantization module
+*/
+C_ALLOC_MEM2 (Ram_aacEnc_PsyOut, PSY_OUT, 1, (1))
+
+C_ALLOC_MEM2 (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT, 1, (1)*(6))
+C_ALLOC_MEM2 (Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL, 1, (1)*(6))
+
+
+/*
+ The structure QC_STATE contains preinitialized settings and quantizer structures.
+ * AdjustThreshold structure contains element-wise settings.
+ * ElementBits contains elemnt-wise bit consumption settings.
+ * When CRC is active, lookup table is necessary for fast crc calculation.
+ * Bitcounter contains buffer to find optimal codebooks and minimal bit consumption.
+ Values are temporarily, so dynamic memory can be used.
+*/
+
+C_ALLOC_MEM (Ram_aacEnc_QCstate, QC_STATE, 1)
+C_ALLOC_MEM (Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE, 1)
+
+C_ALLOC_MEM2 (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT, 1, (6))
+C_ALLOC_MEM2 (Ram_aacEnc_ElementBits, ELEMENT_BITS, 1, (6))
+C_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE, 1)
+
+ INT *GetRam_aacEnc_BitLookUp(int n, UCHAR* dynamic_RAM) {
+ FDK_ASSERT(dynamic_RAM!=0);
+ return ((INT*) (dynamic_RAM + P_BUF_1));
+ }
+ INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR* dynamic_RAM) {
+ FDK_ASSERT(dynamic_RAM!=0);
+ return ((INT*) (dynamic_RAM + P_BUF_1 + sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1))));
+ }
+
+
+/*
+ The structure QC_OUT contains settings and structures holding all necessary information
+ needed in bitstreamwriter.
+*/
+
+C_ALLOC_MEM2 (Ram_aacEnc_QCout, QC_OUT, 1, (1))
+C_ALLOC_MEM2 (Ram_aacEnc_QCelement, QC_OUT_ELEMENT, 1, (1)*(6))
+ QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel (int n, UCHAR* dynamic_RAM) {
+ FDK_ASSERT(dynamic_RAM!=0);
+ return ((QC_OUT_CHANNEL*) (dynamic_RAM + P_BUF_0 + n*sizeof(QC_OUT_CHANNEL)));
+ }
+
+
+
+
+
+
+
+
+
+
+
+