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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