/******************************************************************** *                                                                  * * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   * * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     * * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       * *                                                                  * * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002             * * by the Xiph.Org Foundation http://www.xiph.org/                  * *                                                                  * ******************************************************************** function: toplevel libogg include last mod: $Id: ogg.h 7188 2004-07-20 07:26:04Z xiphmont $ ********************************************************************/#ifndef _OGG_H#define _OGG_H#ifdef __cplusplusextern "C" {#endif#include "os_types.h"typedef struct {  long endbyte;  int  endbit;  unsigned char *buffer;  unsigned char *ptr;  long storage;} oggpack_buffer;/* ogg_page is used to encapsulate the data in one Ogg bitstream page *****/typedef struct {  unsigned char *header;  long header_len;  unsigned char *body;  long body_len;} ogg_page;/* ogg_stream_state contains the current encode/decode state of a logical   Ogg bitstream **********************************************************/typedef struct {  unsigned char   *body_data;    /* bytes from packet bodies */  long    body_storage;          /* storage elements allocated */  long    body_fill;             /* elements stored; fill mark */  long    body_returned;         /* elements of fill returned */  int     *lacing_vals;      /* The values that will go to the segment table */  ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact				this way, but it is simple coupled to the				lacing fifo */  long    lacing_storage;  long    lacing_fill;  long    lacing_packet;  long    lacing_returned;  unsigned char    header[282];      /* working space for header encode */  int              header_fill;  int     e_o_s;          /* set when we have buffered the last packet in the                             logical bitstream */  int     b_o_s;          /* set after we've written the initial page                             of a logical bitstream */  long    serialno;  long    pageno;  ogg_int64_t  packetno;      /* sequence number for decode; the framing                             knows where there's a hole in the data,                             but we need coupling so that the codec                             (which is in a seperate abstraction                             layer) also knows about the gap */  ogg_int64_t   granulepos;} ogg_stream_state;/* ogg_packet is used to encapsulate the data and metadata belonging   to a single raw Ogg/Vorbis packet *************************************/typedef struct {  unsigned char *packet;  long  bytes;  long  b_o_s;  long  e_o_s;  ogg_int64_t  granulepos;    ogg_int64_t  packetno;     /* sequence number for decode; the framing				knows where there's a hole in the data,				but we need coupling so that the codec				(which is in a seperate abstraction				layer) also knows about the gap */} ogg_packet;typedef struct {  unsigned char *data;  int storage;  int fill;  int returned;  int unsynced;  int headerbytes;  int bodybytes;} ogg_sync_state;/* Ogg BITSTREAM PRIMITIVES: bitstream ************************/extern void  oggpack_writeinit(oggpack_buffer *b);extern void  oggpack_writetrunc(oggpack_buffer *b,long bits);extern void  oggpack_writealign(oggpack_buffer *b);extern void  oggpack_writecopy(oggpack_buffer *b,void *source,long bits);extern void  oggpack_reset(oggpack_buffer *b);extern void  oggpack_writeclear(oggpack_buffer *b);extern void  oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes);extern void  oggpack_write(oggpack_buffer *b,unsigned long value,int bits);extern long  oggpack_look(oggpack_buffer *b,int bits);extern long  oggpack_look1(oggpack_buffer *b);extern void  oggpack_adv(oggpack_buffer *b,int bits);extern void  oggpack_adv1(oggpack_buffer *b);extern long  oggpack_read(oggpack_buffer *b,int bits);extern long  oggpack_read1(oggpack_buffer *b);extern long  oggpack_bytes(oggpack_buffer *b);extern long  oggpack_bits(oggpack_buffer *b);extern unsigned char *oggpack_get_buffer(oggpack_buffer *b);extern void  oggpackB_writeinit(oggpack_buffer *b);extern void  oggpackB_writetrunc(oggpack_buffer *b,long bits);extern void  oggpackB_writealign(oggpack_buffer *b);extern void  oggpackB_writecopy(oggpack_buffer *b,void *source,long bits);extern void  oggpackB_reset(oggpack_buffer *b);extern void  oggpackB_writeclear(oggpack_buffer *b);extern void  oggpackB_readinit(oggpack_buffer *b,unsigned char *buf,int bytes);extern void  oggpackB_write(oggpack_buffer *b,unsigned long value,int bits);extern long  oggpackB_look(oggpack_buffer *b,int bits);extern long  oggpackB_look1(oggpack_buffer *b);extern void  oggpackB_adv(oggpack_buffer *b,int bits);extern void  oggpackB_adv1(oggpack_buffer *b);extern long  oggpackB_read(oggpack_buffer *b,int bits);extern long  oggpackB_read1(oggpack_buffer *b);extern long  oggpackB_bytes(oggpack_buffer *b);extern long  oggpackB_bits(oggpack_buffer *b);extern unsigned char *oggpackB_get_buffer(oggpack_buffer *b);/* Ogg BITSTREAM PRIMITIVES: encoding **************************/extern int      ogg_stream_packetin(ogg_stream_state *os, ogg_packet *op);extern int      ogg_stream_pageout(ogg_stream_state *os, ogg_page *og);extern int      ogg_stream_flush(ogg_stream_state *os, ogg_page *og);/* Ogg BITSTREAM PRIMITIVES: decoding **************************/extern int      ogg_sync_init(ogg_sync_state *oy);extern int      ogg_sync_clear(ogg_sync_state *oy);extern int      ogg_sync_reset(ogg_sync_state *oy);extern int	ogg_sync_destroy(ogg_sync_state *oy);extern char    *ogg_sync_buffer(ogg_sync_state *oy, long size);extern int      ogg_sync_wrote(ogg_sync_state *oy, long bytes);extern long     ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og);extern int      ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og);extern int      ogg_stream_pagein(ogg_stream_state *os, ogg_page *og);extern int      ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op);extern int      ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op);/* Ogg BITSTREAM PRIMITIVES: general ***************************/extern int      ogg_stream_init(ogg_stream_state *os,int serialno);extern int      ogg_stream_clear(ogg_stream_state *os);extern int      ogg_stream_reset(ogg_stream_state *os);extern int      ogg_stream_reset_serialno(ogg_stream_state *os,int serialno);extern int      ogg_stream_destroy(ogg_stream_state *os);extern int      ogg_stream_eos(ogg_stream_state *os);extern void     ogg_page_checksum_set(ogg_page *og);extern int      ogg_page_version(ogg_page *og);extern int      ogg_page_continued(ogg_page *og);extern int      ogg_page_bos(ogg_page *og);extern int      ogg_page_eos(ogg_page *og);extern ogg_int64_t  ogg_page_granulepos(ogg_page *og);extern int      ogg_page_serialno(ogg_page *og);extern long     ogg_page_pageno(ogg_page *og);extern int      ogg_page_packets(ogg_page *og);extern void     ogg_packet_clear(ogg_packet *op);#ifdef __cplusplus}#endif#endif  /* _OGG_H */