Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 92 insertions, 0 deletions

diff --git a/libSBRenc/src/tran_det.h b/libSBRenc/src/tran_det.h
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+++ b/libSBRenc/src/tran_det.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  Transient detector prototypes $Revision: 36847 $
+*/
+#ifndef __TRAN_DET_H
+#define __TRAN_DET_H
+
+#include "sbr_encoder.h"
+#include "sbr_def.h"
+
+typedef struct
+{
+  FIXP_DBL  transients[QMF_MAX_TIME_SLOTS+(QMF_MAX_TIME_SLOTS/2)];
+  FIXP_DBL  thresholds[QMF_CHANNELS];
+  FIXP_DBL  tran_thr;              /* Master threshold for transient signals */
+  FIXP_DBL  split_thr;             /* Threshold for splitting FIXFIX-frames into 2 env */
+  FIXP_DBL  prevLowBandEnergy;     /* Energy of low band */
+  FIXP_DBL  prevHighBandEnergy;    /* Energy of high band */
+  INT    tran_fc;                  /* Number of lowband subbands to discard  */
+  INT    no_cols;
+  INT    no_rows;
+  INT    mode;
+
+  int    frameShift;
+  int    tran_off;                 /* Offset for reading energy values. */
+}
+SBR_TRANSIENT_DETECTOR;
+
+
+typedef SBR_TRANSIENT_DETECTOR *HANDLE_SBR_TRANSIENT_DETECTOR;
+
+void
+FDKsbrEnc_transientDetect(HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTransientDetector,
+                          FIXP_DBL **Energies,
+                          INT *scaleEnergies,
+                          UCHAR *tran_vector,
+                          int YBufferWriteOffset,
+                          int YBufferSzShift,
+                          int timeStep,
+                          int frameMiddleBorder);
+
+int
+FDKsbrEnc_InitSbrTransientDetector (HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTransientDetector,
+                            INT   frameSize,
+                            INT   sampleFreq,
+                            sbrConfigurationPtr params,
+                            int   tran_fc,
+                            int   no_cols,
+                            int   no_rows,
+                            int   YBufferWriteOffset,
+                            int   YBufferSzShift,
+                            int   frameShift,
+                            int   tran_off);
+
+void
+FDKsbrEnc_frameSplitter(FIXP_DBL **Energies,
+                        INT *scaleEnergies,
+                        HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTransientDetector,
+                        UCHAR *freqBandTable,
+                        UCHAR *tran_vector,
+                        int YBufferWriteOffset,
+                        int YBufferSzShift,
+                        int nSfb,
+                        int timeStep,
+                        int no_cols);
+
+#endif