www.pudn.com > bladeenc-0.90.0-src.zip > formatbitstream2.h

/* 
			(c) Copyright 1998, 1999 - Tord Jansson 
			======================================= 
 
		This file is part of the BladeEnc MP3 Encoder, based on 
		ISO's reference code for MPEG Layer 3 compression, and might 
		contain smaller or larger sections that are directly taken 
		from ISO's reference code. 
 
		All changes to the ISO reference code herein are either 
		copyrighted by Tord Jansson (tord.jansson@swipnet.se) 
		or sublicensed to Tord Jansson by a third party. 
 
	BladeEnc is free software; you can redistribute this file 
	and/or modify it under the terms of the GNU Lesser General Public 
	License as published by the Free Software Foundation; either 
	version 2.1 of the License, or (at your option) any later version. 
 
*/ 
 
#ifndef	FORMATBITSTREAM2_DOT_H 
#define	FORMATBITSTREAM2_DOT_H 
 
 
#define MAX_CHANNELS 2 
#define MAX_GRANULES 2 
 
 
/*____ Structure Definitions ________________________________________________*/ 
 
typedef struct 
{ 
  unsigned int value; 
  int	 	length; 
} BitHolderElement; 
 
 
typedef struct 
{ 
  int								max_elements; 
  int								nrEntries; 
  BitHolderElement	*element; 
} BitHolder; 
 
 
typedef struct BF_FrameData 
{ 
    int         frameLength; 
    int         nGranules; 
    int         nChannels; 
    BitHolder		header; 
    BitHolder		frameSI; 
    BitHolder		channelSI[MAX_CHANNELS]; 
    BitHolder		spectrumSI[MAX_GRANULES][MAX_CHANNELS]; 
    BitHolder		scaleFactors[MAX_GRANULES][MAX_CHANNELS]; 
    BitHolder		codedData[MAX_GRANULES][MAX_CHANNELS]; 
    BitHolder		userSpectrum[MAX_GRANULES][MAX_CHANNELS]; 
    BitHolder		userFrameData; 
} BF_FrameData; 
 
 
typedef struct BF_FrameResults 
{ 
    int SILength; 
    int mainDataLength; 
    int nextBackPtr; 
} BF_FrameResults; 
 
 
/*____ Function Prototypes __________________________________________________*/ 
 
BitHolder * initBitHolder( BitHolder * wp, int elements ); 
void				exitBitHolder( BitHolder * wp ); 
void				addBits( BitHolder * wp, unsigned int value, int length ); 
void				writeFrame( BF_FrameData *psFrame, BF_FrameResults *results ); 
void				initFormatBitstream( void ); 
void				exitFormatBitstream( void ); 
 
#endif