Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 119 insertions, 0 deletions

diff --git a/libSBRenc/src/invf_est.h b/libSBRenc/src/invf_est.h
new file mode 100644
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+++ b/libSBRenc/src/invf_est.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  Inverse Filtering detection prototypes $Revision: 36847 $
+*/
+#ifndef _INV_FILT_DET_H
+#define _INV_FILT_DET_H
+
+#include "sbr_encoder.h"
+#include "sbr_def.h"
+
+#define INVF_SMOOTHING_LENGTH 2
+
+typedef struct
+{
+  const FIXP_DBL *quantStepsSbr;
+  const FIXP_DBL *quantStepsOrig;
+  const FIXP_DBL *nrgBorders;
+  INT   numRegionsSbr;
+  INT   numRegionsOrig;
+  INT   numRegionsNrg;
+  INVF_MODE regionSpace[5][5];
+  INVF_MODE regionSpaceTransient[5][5];
+  INT EnergyCompFactor[5];
+
+}DETECTOR_PARAMETERS;
+
+typedef struct
+{
+  FIXP_DBL  origQuotaMean[INVF_SMOOTHING_LENGTH+1];
+  FIXP_DBL  sbrQuotaMean[INVF_SMOOTHING_LENGTH+1];
+  FIXP_DBL  origQuotaMeanStrongest[INVF_SMOOTHING_LENGTH+1];
+  FIXP_DBL  sbrQuotaMeanStrongest[INVF_SMOOTHING_LENGTH+1];
+
+  FIXP_DBL origQuotaMeanFilt;
+  FIXP_DBL sbrQuotaMeanFilt;
+  FIXP_DBL origQuotaMeanStrongestFilt;
+  FIXP_DBL sbrQuotaMeanStrongestFilt;
+
+  FIXP_DBL origQuotaMax;
+  FIXP_DBL sbrQuotaMax;
+
+  FIXP_DBL avgNrg;
+}DETECTOR_VALUES;
+
+
+
+typedef struct
+{
+  INT numberOfStrongest;
+
+  INT prevRegionSbr[MAX_NUM_NOISE_VALUES];
+  INT prevRegionOrig[MAX_NUM_NOISE_VALUES];
+
+  INT freqBandTableInvFilt[MAX_NUM_NOISE_VALUES];
+  INT noDetectorBands;
+  INT noDetectorBandsMax;
+
+  const DETECTOR_PARAMETERS *detectorParams;
+
+  INVF_MODE prevInvfMode[MAX_NUM_NOISE_VALUES];
+  DETECTOR_VALUES detectorValues[MAX_NUM_NOISE_VALUES];
+
+  FIXP_DBL nrgAvg;
+  FIXP_DBL wmQmf[MAX_NUM_NOISE_VALUES];
+}
+SBR_INV_FILT_EST;
+
+typedef SBR_INV_FILT_EST *HANDLE_SBR_INV_FILT_EST;
+
+void
+FDKsbrEnc_qmfInverseFilteringDetector(HANDLE_SBR_INV_FILT_EST hInvFilt,
+                            FIXP_DBL ** quotaMatrix,
+                            FIXP_DBL *nrgVector,
+                            SCHAR    *indexVector,
+                            INT startIndex,
+                            INT stopIndex,
+                            INT transientFlag,
+                            INVF_MODE* infVec);
+
+INT
+FDKsbrEnc_initInvFiltDetector (HANDLE_SBR_INV_FILT_EST hInvFilt,
+                       INT* freqBandTableDetector,
+                       INT numDetectorBands,
+                       UINT useSpeechConfig);
+
+/* void deleteInvFiltDetector (HANDLE_SBR_INV_FILT_EST hInvFilt); */
+
+INT
+FDKsbrEnc_resetInvFiltDetector(HANDLE_SBR_INV_FILT_EST hInvFilt,
+                     INT* freqBandTableDetector,
+                     INT numDetectorBands);
+
+#endif /* _QMF_INV_FILT_H */
+