Initial community commit

Src/replicant/nsmp3dec/mdct.h

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+/***************************************************************************\
+ *
+*                    MPEG Layer3-Audio Decoder
+*                  © 1997-2006 by Fraunhofer IIS
+ *                        All Rights Reserved
+ *
+ *   filename: mdct.h
+ *   project : ISO/MPEG-Decoder
+ *   author  : Stefan Gewinner
+ *   date    : 1998-05-26
+ *   contents/description: mdct class - HEADER
+ *
+ *
+ \***************************************************************************/
+
+/*
+ * $Date: 2011/01/18 18:22:03 $
+ * $Id: mdct.h,v 1.4 2011/01/18 18:22:03 audiodsp Exp $
+ */
+
+#ifndef __MDCT_H__
+#define __MDCT_H__
+
+/* ------------------------ includes --------------------------------------*/
+
+#include "mpeg.h"
+#include "foundation/align.h"
+/*-------------------------------------------------------------------------*/
+
+//
+// MDCT class.
+//
+//  This object performs the frequency-to-time mapping.
+//
+
+class CMdct
+{
+
+public :
+
+  CMdct(const MPEG_INFO &_info);
+  ~CMdct() {}
+
+  void Init();
+  void Apply(int ch, const MP3SI_GRCH &SiGrCH, SPECTRUM &rs);
+
+protected :
+
+  void cos_t_h_long (float *prev,float *dest,const float *win);
+  void cos_t_h_short(float *prev,float *dest,const float *win);
+	
+  float hybrid_res[36];
+  NALIGN(16) float cost36_rese[9];
+  NALIGN(16) float cost36_reso[9];
+
+  const MPEG_INFO &info;
+  SPECTRUM         prevblck;
+};
+
+/*-------------------------------------------------------------------------*/
+#endif