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Diffstat (limited to 'libAACenc/src/aacEnc_ram.cpp')
| -rw-r--r-- | libAACenc/src/aacEnc_ram.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/libAACenc/src/aacEnc_ram.cpp b/libAACenc/src/aacEnc_ram.cpp new file mode 100644 index 0000000..3122bb8 --- /dev/null +++ b/libAACenc/src/aacEnc_ram.cpp @@ -0,0 +1,132 @@ +/****************************************************************************** + + (C) Copyright Fraunhofer IIS (2005) + All Rights Reserved + + Please be advised that this software and/or program delivery is + Confidential Information of Fraunhofer and subject to and covered by the + + Fraunhofer IIS Software Evaluation Agreement + between Google Inc. and Fraunhofer + effective and in full force since March 1, 2012. + + You may use this software and/or program only under the terms and + conditions described in the above mentioned Fraunhofer IIS Software + Evaluation Agreement. Any other and/or further use requires a separate agreement. + + + This software and/or program is protected by copyright law and international + treaties. Any reproduction or distribution of this software and/or program, + or any portion of it, may result in severe civil and criminal penalties, and + will be prosecuted to the maximum extent possible under law. + + $Id: + Initial authors: M. Lohwasser, M. Gayer + Contents/description: + +******************************************************************************/ +/*! + \file + \brief Memory layout $Revision: 36838 $ + \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))); + } + + + + + + + + + + + + |