From 9bf37cc9712506b2483650c82d3c41152337ef7e Mon Sep 17 00:00:00 2001
From: Dave Burke <daveburke@google.com>
Date: Tue, 17 Apr 2012 09:51:45 -0700
Subject: Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
---
 libSBRdec/src/sbr_dec.h | 152 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 libSBRdec/src/sbr_dec.h

(limited to 'libSBRdec/src/sbr_dec.h')

diff --git a/libSBRdec/src/sbr_dec.h b/libSBRdec/src/sbr_dec.h
new file mode 100644
index 0000000..d967957
--- /dev/null
+++ b/libSBRdec/src/sbr_dec.h
@@ -0,0 +1,152 @@
+/****************************************************************************
+
+                     (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.
+
+ $Id$
+
+*******************************************************************************/
+/*!
+  \file
+  \brief  Sbr decoder $Revision: 36841 $
+*/
+#ifndef __SBR_DEC_H
+#define __SBR_DEC_H
+
+#include "sbrdecoder.h"
+
+#include "lpp_tran.h"
+#include "qmf.h"
+#include "env_calc.h"
+#include "FDK_audio.h"
+
+
+#include "sbrdec_drc.h"
+
+#define SACDEC_ALIGNMENT_FIX
+
+typedef struct
+{
+  QMF_FILTER_BANK     AnalysiscQMF;
+  QMF_FILTER_BANK     SynthesisQMF;
+
+  SBR_CALCULATE_ENVELOPE  SbrCalculateEnvelope;
+  SBR_LPP_TRANS           LppTrans;
+
+  QMF_SCALE_FACTOR sbrScaleFactor;
+  QMF_SCALE_FACTOR sbrScaleFactorRight;
+
+  /*! Delayed spectral data needed for the dynamic framing of SBR. Not required in case of CLDFB */
+  FIXP_DBL * pSbrOverlapBuffer;
+
+  /* References to workbuffers */
+  FIXP_DBL * WorkBuffer1;
+  FIXP_DBL * WorkBuffer2;
+
+  /* QMF filter states */
+  FIXP_QAS   anaQmfStates[(320)];
+  FIXP_QSS * pSynQmfStates;
+
+  /* Reference pointer arrays for QMF time slots,
+     mixed among overlap and current slots. */
+  FIXP_DBL * QmfBufferReal[(((1024)/(32))+(6))];
+  FIXP_DBL * QmfBufferImag[(((1024)/(32))+(6))];
+  int useLP;
+
+  /* QMF domain extension time slot reference pointer array */
+
+  SBRDEC_DRC_CHANNEL  sbrDrcChannel;
+
+} SBR_DEC;
+
+typedef SBR_DEC *HANDLE_SBR_DEC;
+
+
+typedef struct
+{
+  SBR_FRAME_DATA      frameData[(1)+1];
+  SBR_PREV_FRAME_DATA prevFrameData;
+  SBR_DEC SbrDec;
+}
+SBR_CHANNEL;
+
+typedef SBR_CHANNEL *HANDLE_SBR_CHANNEL;
+
+void
+SbrDecodeAndProcess (HANDLE_SBR_DEC hSbrDec,
+                     INT_PCM *timeIn,
+                     HANDLE_SBR_HEADER_DATA hHeaderData,
+                     HANDLE_SBR_FRAME_DATA hFrameData,
+                     HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,
+                     int applyProcessing,
+                     int channelNr
+                     , UCHAR useLP
+                     );
+
+
+void
+SbrConstructTimeOutput (HANDLE_SBR_DEC hSbrDec,            /*!< handle to Decoder channel */
+                        INT_PCM *timeOut,                    /*!< pointer to output time signal */
+                        HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */
+                        HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,  /*!< Some control data of last frame */
+                        int channelNr
+                       ,UCHAR useLP
+                        );
+
+
+void
+sbr_dec (HANDLE_SBR_DEC hSbrDec,            /*!< handle to Decoder channel */
+         INT_PCM *timeIn,                   /*!< pointer to input time signal */
+         INT_PCM *timeOut,                  /*!< pointer to output time signal */
+         HANDLE_SBR_DEC hSbrDecRight,       /*!< handle to Decoder channel right */
+         INT_PCM *timeOutRight,             /*!< pointer to output time signal */
+         const int strideIn,                /*!< Time data traversal strideIn */
+         const int strideOut,               /*!< Time data traversal strideOut */
+         HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */
+         HANDLE_SBR_FRAME_DATA hFrameData,  /*!< Control data of current frame */
+         HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,  /*!< Some control data of last frame */
+         const int applyProcessing,         /*!< Flag for SBR operation */
+         HANDLE_PS_DEC h_ps_d,
+         const UINT flags
+        );
+
+
+
+SBR_ERROR
+createSbrDec (SBR_CHANNEL * hSbrChannel,
+              HANDLE_SBR_HEADER_DATA hHeaderData,
+              TRANSPOSER_SETTINGS *pSettings,
+              const int downsampleFac,
+              const UINT qmfFlags,
+              const UINT flags,
+              const int overlap,
+              int chan);
+
+int
+deleteSbrDec (SBR_CHANNEL * hSbrChannel);
+
+SBR_ERROR
+resetSbrDec (HANDLE_SBR_DEC hSbrDec,
+             HANDLE_SBR_HEADER_DATA hHeaderData,
+             HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,
+             const int useLP,
+             const int downsampleFac);
+
+#endif
-- 
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