mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-18 10:11:50 +00:00
207 lines
6.5 KiB
C
207 lines
6.5 KiB
C
|
/********************************************************************
|
||
|
|
* *
|
||
|
|
* THIS FILE IS PART OF THE OggVorbis 'TREMOR' 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 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003 *
|
||
|
|
* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
|
||
|
|
* *
|
||
|
|
********************************************************************
|
||
|
|
|
||
|
|
function: subsumed libogg includes
|
||
|
|
|
||
|
|
********************************************************************/
|
||
|
|
#ifndef _OGG_H
|
||
|
|
#define _OGG_H
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "os_types.h"
|
||
|
|
|
||
|
|
typedef struct ogg_buffer_state{
|
||
|
|
struct ogg_buffer *unused_buffers;
|
||
|
|
struct ogg_reference *unused_references;
|
||
|
|
int outstanding;
|
||
|
|
int shutdown;
|
||
|
|
} ogg_buffer_state;
|
||
|
|
|
||
|
|
typedef struct ogg_buffer {
|
||
|
|
unsigned char *data;
|
||
|
|
long size;
|
||
|
|
int refcount;
|
||
|
|
|
||
|
|
union {
|
||
|
|
ogg_buffer_state *owner;
|
||
|
|
struct ogg_buffer *next;
|
||
|
|
} ptr;
|
||
|
|
} ogg_buffer;
|
||
|
|
|
||
|
|
typedef struct ogg_reference {
|
||
|
|
ogg_buffer *buffer;
|
||
|
|
long begin;
|
||
|
|
long length;
|
||
|
|
|
||
|
|
struct ogg_reference *next;
|
||
|
|
} ogg_reference;
|
||
|
|
|
||
|
|
typedef struct oggpack_buffer {
|
||
|
|
int headbit;
|
||
|
|
unsigned char *headptr;
|
||
|
|
long headend;
|
||
|
|
|
||
|
|
/* memory management */
|
||
|
|
ogg_reference *head;
|
||
|
|
ogg_reference *tail;
|
||
|
|
|
||
|
|
/* render the byte/bit counter API constant time */
|
||
|
|
long count; /* doesn't count the tail */
|
||
|
|
} oggpack_buffer;
|
||
|
|
|
||
|
|
typedef struct oggbyte_buffer {
|
||
|
|
ogg_reference *baseref;
|
||
|
|
|
||
|
|
ogg_reference *ref;
|
||
|
|
unsigned char *ptr;
|
||
|
|
long pos;
|
||
|
|
long end;
|
||
|
|
} oggbyte_buffer;
|
||
|
|
|
||
|
|
typedef struct ogg_sync_state {
|
||
|
|
/* decode memory management pool */
|
||
|
|
ogg_buffer_state *bufferpool;
|
||
|
|
|
||
|
|
/* stream buffers */
|
||
|
|
ogg_reference *fifo_head;
|
||
|
|
ogg_reference *fifo_tail;
|
||
|
|
long fifo_fill;
|
||
|
|
|
||
|
|
/* stream sync management */
|
||
|
|
int unsynced;
|
||
|
|
int headerbytes;
|
||
|
|
int bodybytes;
|
||
|
|
|
||
|
|
} ogg_sync_state;
|
||
|
|
|
||
|
|
typedef struct ogg_stream_state {
|
||
|
|
ogg_reference *header_head;
|
||
|
|
ogg_reference *header_tail;
|
||
|
|
ogg_reference *body_head;
|
||
|
|
ogg_reference *body_tail;
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
int lacing_fill;
|
||
|
|
ogg_uint32_t body_fill;
|
||
|
|
|
||
|
|
/* decode-side state data */
|
||
|
|
int holeflag;
|
||
|
|
int spanflag;
|
||
|
|
int clearflag;
|
||
|
|
int laceptr;
|
||
|
|
ogg_uint32_t body_fill_next;
|
||
|
|
|
||
|
|
} ogg_stream_state;
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
ogg_reference *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 {
|
||
|
|
ogg_reference *header;
|
||
|
|
int header_len;
|
||
|
|
ogg_reference *body;
|
||
|
|
long body_len;
|
||
|
|
} ogg_page;
|
||
|
|
|
||
|
|
/* Ogg BITSTREAM PRIMITIVES: bitstream ************************/
|
||
|
|
|
||
|
|
extern void oggpack_readinit(oggpack_buffer *b,ogg_reference *r);
|
||
|
|
extern long oggpack_look(oggpack_buffer *b,int bits);
|
||
|
|
extern void oggpack_adv(oggpack_buffer *b,int bits);
|
||
|
|
extern long oggpack_read(oggpack_buffer *b,int bits);
|
||
|
|
extern long oggpack_bytes(oggpack_buffer *b);
|
||
|
|
extern long oggpack_bits(oggpack_buffer *b);
|
||
|
|
extern int oggpack_eop(oggpack_buffer *b);
|
||
|
|
|
||
|
|
/* Ogg BITSTREAM PRIMITIVES: decoding **************************/
|
||
|
|
|
||
|
|
extern ogg_sync_state *ogg_sync_create(void);
|
||
|
|
extern int ogg_sync_destroy(ogg_sync_state *oy);
|
||
|
|
extern int ogg_sync_reset(ogg_sync_state *oy);
|
||
|
|
|
||
|
|
extern unsigned char *ogg_sync_bufferin(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 ogg_stream_state *ogg_stream_create(int serialno);
|
||
|
|
extern int ogg_stream_destroy(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_eos(ogg_stream_state *os);
|
||
|
|
|
||
|
|
extern int 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 ogg_uint32_t ogg_page_serialno(ogg_page *og);
|
||
|
|
extern ogg_uint32_t ogg_page_pageno(ogg_page *og);
|
||
|
|
extern int ogg_page_packets(ogg_page *og);
|
||
|
|
extern int ogg_page_getbuffer(ogg_page *og, unsigned char **buffer);
|
||
|
|
|
||
|
|
extern int ogg_packet_release(ogg_packet *op);
|
||
|
|
extern int ogg_page_release(ogg_page *og);
|
||
|
|
|
||
|
|
extern void ogg_page_dup(ogg_page *d, ogg_page *s);
|
||
|
|
|
||
|
|
/* Ogg BITSTREAM PRIMITIVES: return codes ***************************/
|
||
|
|
|
||
|
|
#define OGG_SUCCESS 0
|
||
|
|
|
||
|
|
#define OGG_HOLE -10
|
||
|
|
#define OGG_SPAN -11
|
||
|
|
#define OGG_EVERSION -12
|
||
|
|
#define OGG_ESERIAL -13
|
||
|
|
#define OGG_EINVAL -14
|
||
|
|
#define OGG_EEOS -15
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _OGG_H */
|