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rockbox/lib/rbcodec/codecs/libspeex/speex/ogg.h
Sean Bartell f40bfc9267 Add codecs to librbcodec. 
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
2012-04-25 22:13:20 +02:00

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/********************************************************************
* *
* 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: $Id$
********************************************************************/
#ifndef _OGG_H
#define _OGG_H
#ifdef __cplusplus
extern "C" {
#endif
#include "codeclib.h"
typedef short spx_ogg_int16_t;
typedef unsigned short spx_ogg_uint16_t;
typedef int spx_ogg_int32_t;
typedef unsigned int spx_ogg_uint32_t;
typedef long long spx_ogg_int64_t;
#define _spx_ogg_malloc codec_malloc
#define _spx_ogg_calloc codec_calloc
#define _spx_ogg_realloc codec_realloc
#define _spx_ogg_free codec_free
typedef struct {
long endbyte;
int endbit;
unsigned char *buffer;
unsigned char *ptr;
long storage;
} oggpack_buffer;
/* spx_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;
} spx_ogg_page;
/* spx_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 */
spx_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;
spx_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 */
spx_ogg_int64_t granulepos;
} spx_ogg_stream_state;
/* spx_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;
spx_ogg_int64_t granulepos;
spx_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 */
} spx_ogg_packet;
typedef struct {
unsigned char *data;
int storage;
int fill;
int returned;
int unsynced;
int headerbytes;
int bodybytes;
} spx_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 spx_ogg_stream_packetin(spx_ogg_stream_state *os, spx_ogg_packet *op);
extern int spx_ogg_stream_pageout(spx_ogg_stream_state *os, spx_ogg_page *og);
extern int spx_ogg_stream_flush(spx_ogg_stream_state *os, spx_ogg_page *og);
/* Ogg BITSTREAM PRIMITIVES: decoding **************************/
extern int spx_ogg_sync_init(spx_ogg_sync_state *oy);
extern int spx_ogg_sync_clear(spx_ogg_sync_state *oy);
extern int spx_ogg_sync_reset(spx_ogg_sync_state *oy);
extern int spx_ogg_sync_destroy(spx_ogg_sync_state *oy);
extern void spx_ogg_alloc_buffer(spx_ogg_sync_state *oy, long size);
extern char *spx_ogg_sync_buffer(spx_ogg_sync_state *oy, long size);
extern int spx_ogg_sync_wrote(spx_ogg_sync_state *oy, long bytes);
extern long spx_ogg_sync_pageseek(spx_ogg_sync_state *oy,spx_ogg_page *og);
extern int spx_ogg_sync_pageout(spx_ogg_sync_state *oy, spx_ogg_page *og);
extern int spx_ogg_stream_pagein(spx_ogg_stream_state *os, spx_ogg_page *og);
extern int spx_ogg_stream_packetout(spx_ogg_stream_state *os,spx_ogg_packet *op);
extern int spx_ogg_stream_packetpeek(spx_ogg_stream_state *os,spx_ogg_packet *op);
/* Ogg BITSTREAM PRIMITIVES: general ***************************/
extern int spx_ogg_stream_init(spx_ogg_stream_state *os,int serialno);
extern int spx_ogg_stream_clear(spx_ogg_stream_state *os);
extern int spx_ogg_stream_reset(spx_ogg_stream_state *os);
extern int spx_ogg_stream_reset_serialno(spx_ogg_stream_state *os,int serialno);
extern int spx_ogg_stream_destroy(spx_ogg_stream_state *os);
extern int spx_ogg_stream_eos(spx_ogg_stream_state *os);
extern void spx_ogg_page_checksum_set(spx_ogg_page *og);
extern int spx_ogg_page_version(spx_ogg_page *og);
extern int spx_ogg_page_continued(spx_ogg_page *og);
extern int spx_ogg_page_bos(spx_ogg_page *og);
extern int spx_ogg_page_eos(spx_ogg_page *og);
extern spx_ogg_int64_t spx_ogg_page_granulepos(spx_ogg_page *og);
extern int spx_ogg_page_serialno(spx_ogg_page *og);
extern long spx_ogg_page_pageno(spx_ogg_page *og);
extern int spx_ogg_page_packets(spx_ogg_page *og);
extern void spx_ogg_packet_clear(spx_ogg_packet *op);
#ifdef __cplusplus
}
#endif
#endif /* _OGG_H */
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