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authorDave Burke <daveburke@google.com>2012-04-17 09:51:45 -0700
committerDave Burke <daveburke@google.com>2012-04-17 23:04:43 -0700
commit9bf37cc9712506b2483650c82d3c41152337ef7e (patch)
tree77db44e2bae06e3d144b255628be2b7a55c581d3 /libSBRdec/src/psdec_hybrid.h
parenta37315fe10ee143d6d0b28c19d41a476a23e63ea (diff)
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Fraunhofer AAC codec.
License boilerplate update to follow. Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
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+/****************************************************************************
+
+ (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.
+
+ $Id$
+
+*******************************************************************************/
+
+
+#ifndef __HYBRID_H
+#define __HYBRID_H
+
+#include "sbrdecoder.h"
+
+
+#define HYBRID_FILTER_LENGTH 13
+#define HYBRID_FILTER_DELAY 6
+
+
+#define FAST_FILTER2
+#define FAST_FILTER4
+#define FAST_FILTER8
+#define FAST_FILTER12
+
+#define FFT_IDX_R(a) (2*a)
+#define FFT_IDX_I(a) (2*a+1)
+
+#define FIXP_FFT_IDX_R(a) (a<<1)
+#define FIXP_FFT_IDX_I(a) ((a<<1) + 1)
+
+
+typedef enum {
+
+ HYBRID_2_REAL = 2,
+ HYBRID_4_CPLX = 4,
+ HYBRID_8_CPLX = 8,
+ HYBRID_12_CPLX = 12
+
+} HYBRID_RES;
+
+typedef struct
+{
+ SCHAR nQmfBands;
+ SCHAR frameSize;
+ SCHAR qmfBufferMove;
+
+ UCHAR pResolution[3];
+
+ FIXP_DBL mQmfBufferRealSlot[3][HYBRID_FILTER_LENGTH]; /**< Stores old Qmf samples. */
+ FIXP_DBL mQmfBufferImagSlot[3][HYBRID_FILTER_LENGTH];
+ SCHAR sf_mQmfBuffer;
+
+} HYBRID;
+
+typedef HYBRID *HANDLE_HYBRID;
+
+void
+fillHybridDelayLine( FIXP_DBL **fixpQmfReal,
+ FIXP_DBL **fixpQmfImag,
+ FIXP_DBL fixpHybridLeftR[12],
+ FIXP_DBL fixpHybridLeftI[12],
+ FIXP_DBL fixpHybridRightR[12],
+ FIXP_DBL fixpHybridRightI[12],
+ HANDLE_HYBRID hHybrid );
+
+void
+slotBasedHybridAnalysis ( FIXP_DBL *fixpQmfReal,
+ FIXP_DBL *fixpQmfImag,
+
+ FIXP_DBL *fixpHybridReal,
+ FIXP_DBL *fixpHybridImag,
+
+ HANDLE_HYBRID hHybrid);
+
+
+void
+slotBasedHybridSynthesis ( FIXP_DBL *fixpHybridReal,
+ FIXP_DBL *fixpHybridImag,
+
+ FIXP_DBL *fixpQmfReal,
+ FIXP_DBL *fixpQmfImag,
+
+ HANDLE_HYBRID hHybrid );
+
+SBR_ERROR InitHybridFilterBank ( HANDLE_HYBRID hHybrid,
+ SCHAR frameSize,
+ SCHAR noBands,
+ const UCHAR *pResolution );
+
+
+#endif /* __HYBRID_H */