/*
			(c) Copyright 1998-2000 - 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 ([email protected])
		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.



	------------    Changes    ------------

	2000-12-15  Andre Piotrowski

	-	reformatted
*/

#ifndef		__FORMATBITSTREAM2__
#define		__FORMATBITSTREAM2__





#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);
void					flushFrame (void);





#endif   /* __FORMATBITSTREAM2__ */