Initial community commit

Src/replicant/nsmp3dec/huffdec.h

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+/***************************************************************************\
+ *
+*                    MPEG Layer3-Audio Decoder
+*                  <20> 1997-2006 by Fraunhofer IIS
+ *                        All Rights Reserved
+ *
+ *   filename: huffdec.h
+ *   project : ISO/MPEG Decoder
+ *   author  : Martin Sieler
+ *   date    : 1998-05-26
+ *   contents/description: main hufman decoding - HEADER
+ *
+ *
+\***************************************************************************/
+
+/*
+ * $Date: 2010/11/17 20:46:02 $
+ * $Id: huffdec.h,v 1.1 2010/11/17 20:46:02 audiodsp Exp $
+ */
+
+#ifndef __HUFFDEC_H__
+#define __HUFFDEC_H__
+
+/* ------------------------ includes --------------------------------------*/
+
+#include "mpeg.h"
+#include "huffmandecoder.h"
+
+/* ------------------------------------------------------------------------*/
+
+//
+// MPEG Layer-3 huffman decoding class.
+//
+//  This class is derived from a CHuffmanDecoder object. In addition to
+//  the CHuffmanDecoder object, this object calculates the number of
+//  spectral lines in the big value area, the number of spectral lines in the
+//  count-one area and the region boundaries within the big value area from
+//  an MPEG Layer-3 bitstream sideinfo.
+//
+
+class CMp3Huffman : protected CHuffmanDecoder
+{
+public:
+  CMp3Huffman()  {}
+  ~CMp3Huffman() {}
+
+  void Read
+      (
+      CBitStream      &Bs,         // where to read from
+      int             *pISpectrum, // pointer to spectrum
+      MP3SI_GRCH      &SiGrCh,     // side info (granule/channel)
+      const MPEG_INFO &Info        // mpeg info
+      );
+};
+
+/*-------------------------------------------------------------------------*/
+#endif