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+/******************************** MPEG Audio Encoder **************************
+
+ (C) Copyright Fraunhofer IIS (1999)
+ 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.
+
+ $Id$
+ Initial author: M. Werner
+ contents/description: MDCT Transform
+
+******************************************************************************/
+#ifndef _TRANSFORM_H
+#define _TRANSFORM_H
+
+#include "common_fix.h"
+
+#define WTS0 1
+#define WTS1 0
+#define WTS2 -2
+
+/**
+ * \brief: Performe MDCT transform of time domain data.
+ * \param timeData pointer to time domain input signal.
+ * \param mdctData pointer to store frequency domain output data.
+ * \param blockType index indicating the type of block. Either
+ * LONG_WINDOW, START_WINDOW, SHORT_WINDOW or STOP_WINDOW.
+ * \param windowShape index indicating the window slope type to be used.
+ * Values allowed are either SINE_WINDOW or KBD_WINDOW.
+ * \param frameLength length of the block. Either 1024 or 960.
+ * \param mdctData_e pointer to an INT where the exponent of the frequency
+ * domain output data is stored into.
+ * \return 0 in case of success, non-zero in case of error (inconsistent parameters).
+ */
+INT FDKaacEnc_Transform_Real (const INT_PCM *timeData,
+ FIXP_DBL *RESTRICT mdctData,
+ const INT blockType,
+ const INT windowShape,
+ INT *prevWindowShape,
+ const INT frameLength,
+ INT *mdctData_e,
+ INT filterType
+ ,FIXP_DBL * RESTRICT overlapAddBuffer
+ );
+#endif