we don't use these yet.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@209 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike
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202
engine/libs/ogg/ogg.h
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202
engine/libs/ogg/ogg.h
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: toplevel libogg include
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last mod: $Id$
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********************************************************************/
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#ifndef _OGG_H
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#define _OGG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <ogg/os_types.h>
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typedef struct {
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long endbyte;
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int endbit;
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unsigned char *buffer;
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unsigned char *ptr;
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long storage;
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} oggpack_buffer;
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/* ogg_page is used to encapsulate the data in one Ogg bitstream page *****/
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typedef struct {
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unsigned char *header;
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long header_len;
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unsigned char *body;
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long body_len;
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} ogg_page;
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/* ogg_stream_state contains the current encode/decode state of a logical
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Ogg bitstream **********************************************************/
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typedef struct {
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unsigned char *body_data; /* bytes from packet bodies */
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long body_storage; /* storage elements allocated */
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long body_fill; /* elements stored; fill mark */
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long body_returned; /* elements of fill returned */
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int *lacing_vals; /* The values that will go to the segment table */
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ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact
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this way, but it is simple coupled to the
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lacing fifo */
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long lacing_storage;
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long lacing_fill;
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long lacing_packet;
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long lacing_returned;
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unsigned char header[282]; /* working space for header encode */
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int header_fill;
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int e_o_s; /* set when we have buffered the last packet in the
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logical bitstream */
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int b_o_s; /* set after we've written the initial page
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of a logical bitstream */
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long serialno;
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long pageno;
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ogg_int64_t packetno; /* sequence number for decode; the framing
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knows where there's a hole in the data,
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but we need coupling so that the codec
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(which is in a seperate abstraction
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layer) also knows about the gap */
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ogg_int64_t granulepos;
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} ogg_stream_state;
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/* ogg_packet is used to encapsulate the data and metadata belonging
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to a single raw Ogg/Vorbis packet *************************************/
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typedef struct {
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unsigned char *packet;
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long bytes;
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long b_o_s;
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long e_o_s;
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ogg_int64_t granulepos;
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ogg_int64_t packetno; /* sequence number for decode; the framing
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knows where there's a hole in the data,
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but we need coupling so that the codec
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(which is in a seperate abstraction
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layer) also knows about the gap */
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} ogg_packet;
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typedef struct {
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unsigned char *data;
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int storage;
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int fill;
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int returned;
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int unsynced;
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int headerbytes;
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int bodybytes;
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} ogg_sync_state;
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/* Ogg BITSTREAM PRIMITIVES: bitstream ************************/
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extern void oggpack_writeinit(oggpack_buffer *b);
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extern void oggpack_writetrunc(oggpack_buffer *b,long bits);
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extern void oggpack_writealign(oggpack_buffer *b);
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extern void oggpack_writecopy(oggpack_buffer *b,void *source,long bits);
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extern void oggpack_reset(oggpack_buffer *b);
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extern void oggpack_writeclear(oggpack_buffer *b);
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extern void oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes);
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extern void oggpack_write(oggpack_buffer *b,unsigned long value,int bits);
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extern long oggpack_look(oggpack_buffer *b,int bits);
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extern long oggpack_look1(oggpack_buffer *b);
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extern void oggpack_adv(oggpack_buffer *b,int bits);
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extern void oggpack_adv1(oggpack_buffer *b);
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extern long oggpack_read(oggpack_buffer *b,int bits);
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extern long oggpack_read1(oggpack_buffer *b);
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extern long oggpack_bytes(oggpack_buffer *b);
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extern long oggpack_bits(oggpack_buffer *b);
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extern unsigned char *oggpack_get_buffer(oggpack_buffer *b);
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extern void oggpackB_writeinit(oggpack_buffer *b);
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extern void oggpackB_writetrunc(oggpack_buffer *b,long bits);
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extern void oggpackB_writealign(oggpack_buffer *b);
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extern void oggpackB_writecopy(oggpack_buffer *b,void *source,long bits);
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extern void oggpackB_reset(oggpack_buffer *b);
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extern void oggpackB_writeclear(oggpack_buffer *b);
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extern void oggpackB_readinit(oggpack_buffer *b,unsigned char *buf,int bytes);
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extern void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits);
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extern long oggpackB_look(oggpack_buffer *b,int bits);
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extern long oggpackB_look1(oggpack_buffer *b);
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extern void oggpackB_adv(oggpack_buffer *b,int bits);
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extern void oggpackB_adv1(oggpack_buffer *b);
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extern long oggpackB_read(oggpack_buffer *b,int bits);
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extern long oggpackB_read1(oggpack_buffer *b);
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extern long oggpackB_bytes(oggpack_buffer *b);
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extern long oggpackB_bits(oggpack_buffer *b);
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extern unsigned char *oggpackB_get_buffer(oggpack_buffer *b);
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/* Ogg BITSTREAM PRIMITIVES: encoding **************************/
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extern int ogg_stream_packetin(ogg_stream_state *os, ogg_packet *op);
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extern int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og);
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extern int ogg_stream_flush(ogg_stream_state *os, ogg_page *og);
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/* Ogg BITSTREAM PRIMITIVES: decoding **************************/
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extern int ogg_sync_init(ogg_sync_state *oy);
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extern int ogg_sync_clear(ogg_sync_state *oy);
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extern int ogg_sync_reset(ogg_sync_state *oy);
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extern int ogg_sync_destroy(ogg_sync_state *oy);
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extern char *ogg_sync_buffer(ogg_sync_state *oy, long size);
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extern int ogg_sync_wrote(ogg_sync_state *oy, long bytes);
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extern long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og);
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extern int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og);
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extern int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og);
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extern int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op);
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extern int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op);
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/* Ogg BITSTREAM PRIMITIVES: general ***************************/
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extern int ogg_stream_init(ogg_stream_state *os,int serialno);
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extern int ogg_stream_clear(ogg_stream_state *os);
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extern int ogg_stream_reset(ogg_stream_state *os);
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extern int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno);
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extern int ogg_stream_destroy(ogg_stream_state *os);
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extern int ogg_stream_eos(ogg_stream_state *os);
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extern void ogg_page_checksum_set(ogg_page *og);
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extern int ogg_page_version(ogg_page *og);
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extern int ogg_page_continued(ogg_page *og);
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extern int ogg_page_bos(ogg_page *og);
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extern int ogg_page_eos(ogg_page *og);
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extern ogg_int64_t ogg_page_granulepos(ogg_page *og);
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extern int ogg_page_serialno(ogg_page *og);
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extern long ogg_page_pageno(ogg_page *og);
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extern int ogg_page_packets(ogg_page *og);
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extern void ogg_packet_clear(ogg_packet *op);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _OGG_H */
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106
engine/libs/ogg/os_types.h
Normal file
106
engine/libs/ogg/os_types.h
Normal file
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@ -0,0 +1,106 @@
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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||||||
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: #ifdef jail to whip a few platforms into the UNIX ideal.
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last mod: $Id$
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********************************************************************/
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#ifndef _OS_TYPES_H
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#define _OS_TYPES_H
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/* make it easy on the folks that want to compile the libs with a
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different malloc than stdlib */
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#define _ogg_malloc malloc
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#define _ogg_calloc calloc
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#define _ogg_realloc realloc
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#define _ogg_free free
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#ifdef _WIN32
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# ifndef __GNUC__
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/* MSVC/Borland */
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typedef __int64 ogg_int64_t;
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typedef __int32 ogg_int32_t;
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typedef unsigned __int32 ogg_uint32_t;
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typedef __int16 ogg_int16_t;
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typedef unsigned __int16 ogg_uint16_t;
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# else
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/* Cygwin */
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#include <_G_config.h>
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typedef _G_int64_t ogg_int64_t;
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typedef _G_int32_t ogg_int32_t;
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typedef _G_uint32_t ogg_uint32_t;
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typedef _G_int16_t ogg_int16_t;
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typedef _G_uint16_t ogg_uint16_t;
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# endif
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#elif defined(__MACOS__)
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# include <sys/types.h>
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typedef SInt16 ogg_int16_t;
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typedef UInt16 ogg_uint16_t;
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typedef SInt32 ogg_int32_t;
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typedef UInt32 ogg_uint32_t;
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typedef SInt64 ogg_int64_t;
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#elif defined(__MACOSX__) /* MacOS X Framework build */
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# include <sys/types.h>
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typedef int16_t ogg_int16_t;
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typedef u_int16_t ogg_uint16_t;
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typedef int32_t ogg_int32_t;
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typedef u_int32_t ogg_uint32_t;
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typedef int64_t ogg_int64_t;
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#elif defined(__BEOS__)
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/* Be */
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# include <inttypes.h>
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typedef int16_t ogg_int16_t;
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typedef u_int16_t ogg_uint16_t;
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typedef int32_t ogg_int32_t;
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typedef u_int32_t ogg_uint32_t;
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typedef int64_t ogg_int64_t;
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#elif defined (__EMX__)
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/* OS/2 GCC */
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typedef short ogg_int16_t;
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typedef unsigned short ogg_uint16_t;
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typedef int ogg_int32_t;
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typedef unsigned int ogg_uint32_t;
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typedef long long ogg_int64_t;
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#elif defined (DJGPP)
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/* DJGPP */
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typedef short ogg_int16_t;
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typedef int ogg_int32_t;
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typedef unsigned int ogg_uint32_t;
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typedef long long ogg_int64_t;
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#elif defined(R5900)
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/* PS2 EE */
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typedef long ogg_int64_t;
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typedef int ogg_int32_t;
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||||||
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typedef unsigned ogg_uint32_t;
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||||||
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typedef short ogg_int16_t;
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|
|
||||||
|
#else
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|
|
||||||
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# include <sys/types.h>
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# include <ogg/config_types.h>
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|
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||||||
|
#endif
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||||||
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||||||
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#endif /* _OS_TYPES_H */
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||||||
240
engine/libs/vorbis/codec.h
Normal file
240
engine/libs/vorbis/codec.h
Normal file
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@ -0,0 +1,240 @@
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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 1994-2001 *
|
||||||
|
* by the XIPHOPHORUS Company http://www.xiph.org/ *
|
||||||
|
|
||||||
|
********************************************************************
|
||||||
|
|
||||||
|
function: libvorbis codec headers
|
||||||
|
last mod: $Id$
|
||||||
|
|
||||||
|
********************************************************************/
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||||||
|
|
||||||
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#ifndef _vorbis_codec_h_
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#define _vorbis_codec_h_
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||||||
|
|
||||||
|
#ifdef __cplusplus
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||||||
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extern "C"
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||||||
|
{
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||||||
|
#endif /* __cplusplus */
|
||||||
|
|
||||||
|
#include <ogg/ogg.h>
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||||||
|
|
||||||
|
typedef struct vorbis_info{
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||||||
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int version;
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int channels;
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long rate;
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|
|
||||||
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/* The below bitrate declarations are *hints*.
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||||||
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Combinations of the three values carry the following implications:
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||||||
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||||||
|
all three set to the same value:
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||||||
|
implies a fixed rate bitstream
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||||||
|
only nominal set:
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||||||
|
implies a VBR stream that averages the nominal bitrate. No hard
|
||||||
|
upper/lower limit
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||||||
|
upper and or lower set:
|
||||||
|
implies a VBR bitstream that obeys the bitrate limits. nominal
|
||||||
|
may also be set to give a nominal rate.
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||||||
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none set:
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||||||
|
the coder does not care to speculate.
|
||||||
|
*/
|
||||||
|
|
||||||
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long bitrate_upper;
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||||||
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long bitrate_nominal;
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||||||
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long bitrate_lower;
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||||||
|
long bitrate_window;
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||||||
|
|
||||||
|
void *codec_setup;
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||||||
|
} vorbis_info;
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||||||
|
|
||||||
|
/* vorbis_dsp_state buffers the current vorbis audio
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||||||
|
analysis/synthesis state. The DSP state belongs to a specific
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||||||
|
logical bitstream ****************************************************/
|
||||||
|
typedef struct vorbis_dsp_state{
|
||||||
|
int analysisp;
|
||||||
|
vorbis_info *vi;
|
||||||
|
|
||||||
|
float **pcm;
|
||||||
|
float **pcmret;
|
||||||
|
int pcm_storage;
|
||||||
|
int pcm_current;
|
||||||
|
int pcm_returned;
|
||||||
|
|
||||||
|
int preextrapolate;
|
||||||
|
int eofflag;
|
||||||
|
|
||||||
|
long lW;
|
||||||
|
long W;
|
||||||
|
long nW;
|
||||||
|
long centerW;
|
||||||
|
|
||||||
|
ogg_int64_t granulepos;
|
||||||
|
ogg_int64_t sequence;
|
||||||
|
|
||||||
|
ogg_int64_t glue_bits;
|
||||||
|
ogg_int64_t time_bits;
|
||||||
|
ogg_int64_t floor_bits;
|
||||||
|
ogg_int64_t res_bits;
|
||||||
|
|
||||||
|
void *backend_state;
|
||||||
|
} vorbis_dsp_state;
|
||||||
|
|
||||||
|
typedef struct vorbis_block{
|
||||||
|
/* necessary stream state for linking to the framing abstraction */
|
||||||
|
float **pcm; /* this is a pointer into local storage */
|
||||||
|
oggpack_buffer opb;
|
||||||
|
|
||||||
|
long lW;
|
||||||
|
long W;
|
||||||
|
long nW;
|
||||||
|
int pcmend;
|
||||||
|
int mode;
|
||||||
|
|
||||||
|
int eofflag;
|
||||||
|
ogg_int64_t granulepos;
|
||||||
|
ogg_int64_t sequence;
|
||||||
|
vorbis_dsp_state *vd; /* For read-only access of configuration */
|
||||||
|
|
||||||
|
/* local storage to avoid remallocing; it's up to the mapping to
|
||||||
|
structure it */
|
||||||
|
void *localstore;
|
||||||
|
long localtop;
|
||||||
|
long localalloc;
|
||||||
|
long totaluse;
|
||||||
|
struct alloc_chain *reap;
|
||||||
|
|
||||||
|
/* bitmetrics for the frame */
|
||||||
|
long glue_bits;
|
||||||
|
long time_bits;
|
||||||
|
long floor_bits;
|
||||||
|
long res_bits;
|
||||||
|
|
||||||
|
void *internal;
|
||||||
|
|
||||||
|
} vorbis_block;
|
||||||
|
|
||||||
|
/* vorbis_block is a single block of data to be processed as part of
|
||||||
|
the analysis/synthesis stream; it belongs to a specific logical
|
||||||
|
bitstream, but is independant from other vorbis_blocks belonging to
|
||||||
|
that logical bitstream. *************************************************/
|
||||||
|
|
||||||
|
struct alloc_chain{
|
||||||
|
void *ptr;
|
||||||
|
struct alloc_chain *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* vorbis_info contains all the setup information specific to the
|
||||||
|
specific compression/decompression mode in progress (eg,
|
||||||
|
psychoacoustic settings, channel setup, options, codebook
|
||||||
|
etc). vorbis_info and substructures are in backends.h.
|
||||||
|
*********************************************************************/
|
||||||
|
|
||||||
|
/* the comments are not part of vorbis_info so that vorbis_info can be
|
||||||
|
static storage */
|
||||||
|
typedef struct vorbis_comment{
|
||||||
|
/* unlimited user comment fields. libvorbis writes 'libvorbis'
|
||||||
|
whatever vendor is set to in encode */
|
||||||
|
char **user_comments;
|
||||||
|
int *comment_lengths;
|
||||||
|
int comments;
|
||||||
|
char *vendor;
|
||||||
|
|
||||||
|
} vorbis_comment;
|
||||||
|
|
||||||
|
|
||||||
|
/* libvorbis encodes in two abstraction layers; first we perform DSP
|
||||||
|
and produce a packet (see docs/analysis.txt). The packet is then
|
||||||
|
coded into a framed OggSquish bitstream by the second layer (see
|
||||||
|
docs/framing.txt). Decode is the reverse process; we sync/frame
|
||||||
|
the bitstream and extract individual packets, then decode the
|
||||||
|
packet back into PCM audio.
|
||||||
|
|
||||||
|
The extra framing/packetizing is used in streaming formats, such as
|
||||||
|
files. Over the net (such as with UDP), the framing and
|
||||||
|
packetization aren't necessary as they're provided by the transport
|
||||||
|
and the streaming layer is not used */
|
||||||
|
|
||||||
|
/* Vorbis PRIMITIVES: general ***************************************/
|
||||||
|
|
||||||
|
extern void vorbis_info_init(vorbis_info *vi);
|
||||||
|
extern void vorbis_info_clear(vorbis_info *vi);
|
||||||
|
extern int vorbis_info_blocksize(vorbis_info *vi,int zo);
|
||||||
|
extern void vorbis_comment_init(vorbis_comment *vc);
|
||||||
|
extern void vorbis_comment_add(vorbis_comment *vc, char *comment);
|
||||||
|
extern void vorbis_comment_add_tag(vorbis_comment *vc,
|
||||||
|
char *tag, char *contents);
|
||||||
|
extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count);
|
||||||
|
extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag);
|
||||||
|
extern void vorbis_comment_clear(vorbis_comment *vc);
|
||||||
|
|
||||||
|
extern int vorbis_block_init(vorbis_dsp_state *v, vorbis_block *vb);
|
||||||
|
extern int vorbis_block_clear(vorbis_block *vb);
|
||||||
|
extern void vorbis_dsp_clear(vorbis_dsp_state *v);
|
||||||
|
extern double vorbis_granule_time(vorbis_dsp_state *v,
|
||||||
|
ogg_int64_t granulepos);
|
||||||
|
|
||||||
|
/* Vorbis PRIMITIVES: analysis/DSP layer ****************************/
|
||||||
|
|
||||||
|
extern int vorbis_analysis_init(vorbis_dsp_state *v,vorbis_info *vi);
|
||||||
|
extern int vorbis_commentheader_out(vorbis_comment *vc, ogg_packet *op);
|
||||||
|
extern int vorbis_analysis_headerout(vorbis_dsp_state *v,
|
||||||
|
vorbis_comment *vc,
|
||||||
|
ogg_packet *op,
|
||||||
|
ogg_packet *op_comm,
|
||||||
|
ogg_packet *op_code);
|
||||||
|
extern float **vorbis_analysis_buffer(vorbis_dsp_state *v,int vals);
|
||||||
|
extern int vorbis_analysis_wrote(vorbis_dsp_state *v,int vals);
|
||||||
|
extern int vorbis_analysis_blockout(vorbis_dsp_state *v,vorbis_block *vb);
|
||||||
|
extern int vorbis_analysis(vorbis_block *vb,ogg_packet *op);
|
||||||
|
|
||||||
|
extern int vorbis_bitrate_addblock(vorbis_block *vb);
|
||||||
|
extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd,
|
||||||
|
ogg_packet *op);
|
||||||
|
|
||||||
|
/* Vorbis PRIMITIVES: synthesis layer *******************************/
|
||||||
|
extern int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,
|
||||||
|
ogg_packet *op);
|
||||||
|
|
||||||
|
extern int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi);
|
||||||
|
extern int vorbis_synthesis_restart(vorbis_dsp_state *v);
|
||||||
|
extern int vorbis_synthesis(vorbis_block *vb,ogg_packet *op);
|
||||||
|
extern int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op);
|
||||||
|
extern int vorbis_synthesis_blockin(vorbis_dsp_state *v,vorbis_block *vb);
|
||||||
|
extern int vorbis_synthesis_pcmout(vorbis_dsp_state *v,float ***pcm);
|
||||||
|
extern int vorbis_synthesis_lapout(vorbis_dsp_state *v,float ***pcm);
|
||||||
|
extern int vorbis_synthesis_read(vorbis_dsp_state *v,int samples);
|
||||||
|
extern long vorbis_packet_blocksize(vorbis_info *vi,ogg_packet *op);
|
||||||
|
|
||||||
|
extern int vorbis_synthesis_halfrate(vorbis_info *v,int flag);
|
||||||
|
extern int vorbis_synthesis_halfrate_p(vorbis_info *v);
|
||||||
|
|
||||||
|
/* Vorbis ERRORS and return codes ***********************************/
|
||||||
|
|
||||||
|
#define OV_FALSE -1
|
||||||
|
#define OV_EOF -2
|
||||||
|
#define OV_HOLE -3
|
||||||
|
|
||||||
|
#define OV_EREAD -128
|
||||||
|
#define OV_EFAULT -129
|
||||||
|
#define OV_EIMPL -130
|
||||||
|
#define OV_EINVAL -131
|
||||||
|
#define OV_ENOTVORBIS -132
|
||||||
|
#define OV_EBADHEADER -133
|
||||||
|
#define OV_EVERSION -134
|
||||||
|
#define OV_ENOTAUDIO -135
|
||||||
|
#define OV_EBADPACKET -136
|
||||||
|
#define OV_EBADLINK -137
|
||||||
|
#define OV_ENOSEEK -138
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif /* __cplusplus */
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
143
engine/libs/vorbis/vorbisfile.h
Normal file
143
engine/libs/vorbis/vorbisfile.h
Normal file
|
|
@ -0,0 +1,143 @@
|
||||||
|
/********************************************************************
|
||||||
|
* *
|
||||||
|
* 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 1994-2001 *
|
||||||
|
* by the XIPHOPHORUS Company http://www.xiph.org/ *
|
||||||
|
* *
|
||||||
|
********************************************************************
|
||||||
|
|
||||||
|
function: stdio-based convenience library for opening/seeking/decoding
|
||||||
|
last mod: $Id$
|
||||||
|
|
||||||
|
********************************************************************/
|
||||||
|
|
||||||
|
#ifndef _OV_FILE_H_
|
||||||
|
#define _OV_FILE_H_
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C"
|
||||||
|
{
|
||||||
|
#endif /* __cplusplus */
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include "codec.h"
|
||||||
|
|
||||||
|
/* The function prototypes for the callbacks are basically the same as for
|
||||||
|
* the stdio functions fread, fseek, fclose, ftell.
|
||||||
|
* The one difference is that the FILE * arguments have been replaced with
|
||||||
|
* a void * - this is to be used as a pointer to whatever internal data these
|
||||||
|
* functions might need. In the stdio case, it's just a FILE * cast to a void *
|
||||||
|
*
|
||||||
|
* If you use other functions, check the docs for these functions and return
|
||||||
|
* the right values. For seek_func(), you *MUST* return -1 if the stream is
|
||||||
|
* unseekable
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
size_t (*read_func) (void *ptr, size_t size, size_t nmemb, void *datasource);
|
||||||
|
int (*seek_func) (void *datasource, ogg_int64_t offset, int whence);
|
||||||
|
int (*close_func) (void *datasource);
|
||||||
|
long (*tell_func) (void *datasource);
|
||||||
|
} ov_callbacks;
|
||||||
|
|
||||||
|
#define NOTOPEN 0
|
||||||
|
#define PARTOPEN 1
|
||||||
|
#define OPENED 2
|
||||||
|
#define STREAMSET 3
|
||||||
|
#define INITSET 4
|
||||||
|
|
||||||
|
typedef struct OggVorbis_File {
|
||||||
|
void *datasource; /* Pointer to a FILE *, etc. */
|
||||||
|
int seekable;
|
||||||
|
ogg_int64_t offset;
|
||||||
|
ogg_int64_t end;
|
||||||
|
ogg_sync_state oy;
|
||||||
|
|
||||||
|
/* If the FILE handle isn't seekable (eg, a pipe), only the current
|
||||||
|
stream appears */
|
||||||
|
int links;
|
||||||
|
ogg_int64_t *offsets;
|
||||||
|
ogg_int64_t *dataoffsets;
|
||||||
|
long *serialnos;
|
||||||
|
ogg_int64_t *pcmlengths; /* overloaded to maintain binary
|
||||||
|
compatability; x2 size, stores both
|
||||||
|
beginning and end values */
|
||||||
|
vorbis_info *vi;
|
||||||
|
vorbis_comment *vc;
|
||||||
|
|
||||||
|
/* Decoding working state local storage */
|
||||||
|
ogg_int64_t pcm_offset;
|
||||||
|
int ready_state;
|
||||||
|
long current_serialno;
|
||||||
|
int current_link;
|
||||||
|
|
||||||
|
double bittrack;
|
||||||
|
double samptrack;
|
||||||
|
|
||||||
|
ogg_stream_state os; /* take physical pages, weld into a logical
|
||||||
|
stream of packets */
|
||||||
|
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
|
||||||
|
vorbis_block vb; /* local working space for packet->PCM decode */
|
||||||
|
|
||||||
|
ov_callbacks callbacks;
|
||||||
|
|
||||||
|
} OggVorbis_File;
|
||||||
|
|
||||||
|
extern int ov_clear(OggVorbis_File *vf);
|
||||||
|
extern int ov_open(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
|
||||||
|
extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
|
||||||
|
char *initial, long ibytes, ov_callbacks callbacks);
|
||||||
|
|
||||||
|
extern int ov_test(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
|
||||||
|
extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
|
||||||
|
char *initial, long ibytes, ov_callbacks callbacks);
|
||||||
|
extern int ov_test_open(OggVorbis_File *vf);
|
||||||
|
|
||||||
|
extern long ov_bitrate(OggVorbis_File *vf,int i);
|
||||||
|
extern long ov_bitrate_instant(OggVorbis_File *vf);
|
||||||
|
extern long ov_streams(OggVorbis_File *vf);
|
||||||
|
extern long ov_seekable(OggVorbis_File *vf);
|
||||||
|
extern long ov_serialnumber(OggVorbis_File *vf,int i);
|
||||||
|
|
||||||
|
extern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i);
|
||||||
|
extern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i);
|
||||||
|
extern double ov_time_total(OggVorbis_File *vf,int i);
|
||||||
|
|
||||||
|
extern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_time_seek(OggVorbis_File *vf,double pos);
|
||||||
|
extern int ov_time_seek_page(OggVorbis_File *vf,double pos);
|
||||||
|
|
||||||
|
extern int ov_raw_seek_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_pcm_seek_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_pcm_seek_page_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||||
|
extern int ov_time_seek_lap(OggVorbis_File *vf,double pos);
|
||||||
|
extern int ov_time_seek_page_lap(OggVorbis_File *vf,double pos);
|
||||||
|
|
||||||
|
extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf);
|
||||||
|
extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf);
|
||||||
|
extern double ov_time_tell(OggVorbis_File *vf);
|
||||||
|
|
||||||
|
extern vorbis_info *ov_info(OggVorbis_File *vf,int link);
|
||||||
|
extern vorbis_comment *ov_comment(OggVorbis_File *vf,int link);
|
||||||
|
|
||||||
|
extern long ov_read_float(OggVorbis_File *vf,float ***pcm_channels,int samples,
|
||||||
|
int *bitstream);
|
||||||
|
extern long ov_read(OggVorbis_File *vf,char *buffer,int length,
|
||||||
|
int bigendianp,int word,int sgned,int *bitstream);
|
||||||
|
extern int ov_crosslap(OggVorbis_File *vf1,OggVorbis_File *vf2);
|
||||||
|
|
||||||
|
extern int ov_halfrate(OggVorbis_File *vf,int flag);
|
||||||
|
extern int ov_halfrate_p(OggVorbis_File *vf);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif /* __cplusplus */
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in a new issue