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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: 37142 $
*/
#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_PARAMETRIC_STEREO hParametricStereo;
QMF_FILTER_BANK qmfSynthesisPS;
/* parameters describing allocation volume of present instance */
INT maxElements;
INT maxChannels;
INT supportPS;
} ;
#endif /* __SBR_H */
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