Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 107 insertions, 0 deletions

diff --git a/libSBRenc/src/sbr.h b/libSBRenc/src/sbr.h
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+/****************************************************************************
+
+                     (C) Copyright Fraunhofer IIS (2004)
+                               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.
+
+ $Id$
+
+*******************************************************************************/
+/*!
+  \file
+  \brief  Main SBR structs definitions $Revision: 36847 $
+*/
+
+#ifndef __SBR_H
+#define __SBR_H
+
+#include "fram_gen.h"
+#include "bit_sbr.h"
+#include "tran_det.h"
+#include "code_env.h"
+#include "env_est.h"
+#include "cmondata.h"
+
+#include "qmf.h"
+#include "resampler.h"
+
+#include "ton_corr.h"
+
+
+/* SBR bitstream delay */
+  #define DELAY_FRAMES 2
+
+typedef struct {
+    struct ENV_CHANNEL        hEnvChannel;
+    //INT_PCM                  *pDSOutBuffer;            /**< Pointer to downsampled audio output of SBR encoder */
+    DOWNSAMPLER               downSampler;
+
+} SBR_CHANNEL;
+typedef SBR_CHANNEL* HANDLE_SBR_CHANNEL;
+
+typedef struct {
+    HANDLE_SBR_CHANNEL        sbrChannel[2];
+    QMF_FILTER_BANK          *hQmfAnalysis[2];
+    SBR_CONFIG_DATA           sbrConfigData;
+    SBR_HEADER_DATA           sbrHeaderData;
+    SBR_BITSTREAM_DATA        sbrBitstreamData;
+    COMMON_DATA               CmonData;
+    INT                       dynXOverFreqDelay[5];    /**< to delay a frame (I don't like it that much that way - hrc) */
+    SBR_ELEMENT_INFO          elInfo;
+
+    UCHAR                     payloadDelayLine[1+DELAY_FRAMES][MAX_PAYLOAD_SIZE];
+    UINT                      payloadDelayLineSize[1+DELAY_FRAMES];                 /* Sizes in bits */
+
+} SBR_ELEMENT;
+typedef SBR_ELEMENT* HANDLE_SBR_ELEMENT;
+
+struct SBR_ENCODER
+{
+  HANDLE_SBR_ELEMENT   sbrElement[(6)];
+  HANDLE_SBR_CHANNEL   pSbrChannel[(6)];
+  QMF_FILTER_BANK      QmfAnalysis[(6)];
+  DOWNSAMPLER          lfeDownSampler;
+  int                  lfeChIdx;                 /* -1 default for no lfe, else assign channel index */
+  int                  noElements;               /* Number of elements */
+  int                  nChannels;                /* Total channel count across all elements. */
+  int                  frameSize;                /* SBR framelength. */
+  int                  bufferOffset;             /* Offset for SBR parameter extraction in time domain input buffer. */
+  int                  downsampledOffset;        /* Offset of downsampled/mixed output for core encoder. */
+  int                  downmixSize;              /* Size in samples of downsampled/mixed output for core encoder. */
+  int                  fTimeDomainDownsampling;  /* Flag signalling time domain downsampling instead of QMF downsampling. */
+  int                  nBitstrDelay;             /* Amount of SBR frames to be delayed in bitstream domain. */
+  INT                  estimateBitrate;          /* estimate bitrate of SBR encoder */
+  INT                  inputDataDelay;           /* delay caused by downsampler, in/out buffer at sbrEncoder_EncodeFrame */
+
+  UCHAR* dynamicRam;
+  UCHAR* pSBRdynamic_RAM;
+
+  HANDLE_PSENC_CONFIG       hPsEncConfig;
+  HANDLE_PARAMETRIC_STEREO  hParametricStereo;
+  QMF_FILTER_BANK           qmfSynthesisPS;
+
+  /* parameters describing allocation volume of present instance */
+  INT                  maxElements;
+  INT                  maxChannels;
+  INT                  supportPS;
+
+} ;
+
+
+#endif /* __SBR_H */