Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 163 insertions, 0 deletions

diff --git a/libAACenc/src/aacEnc_ram.h b/libAACenc/src/aacEnc_ram.h
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+/******************************************************************************
+
+                     (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
+*/
+
+#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 */
+