winamp/Src/replicant/nsmp3dec/huffdec.h

58 lines
1.6 KiB
C
Raw Normal View History

2024-09-24 12:54:57 +00:00
/***************************************************************************\
*
* MPEG Layer3-Audio Decoder
* <EFBFBD> 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