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Files moved but not modified. Changes to follow in a subsequent commit. You down with CPP? git-svn-id: https://svn.eduke32.com/eduke32@6055 1a8010ca-5511-0410-912e-c29ae57300e0
122 lines
4.4 KiB
C
122 lines
4.4 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
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* *
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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 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003 *
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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: stdio-based convenience library for opening/seeking/decoding
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********************************************************************/
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#ifndef _OV_FILE_H_
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#define _OV_FILE_H_
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#include <stdio.h>
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#include "ivorbiscodec.h"
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/* The function prototypes for the callbacks are basically the same as for
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* the stdio functions fread, fseek, fclose, ftell.
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* The one difference is that the FILE * arguments have been replaced with
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* a void * - this is to be used as a pointer to whatever internal data these
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* functions might need. In the stdio case, it's just a FILE * cast to a void *
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*
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* If you use other functions, check the docs for these functions and return
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* the right values. For seek_func(), you *MUST* return -1 if the stream is
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* unseekable
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*/
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typedef struct {
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size_t (*read_func) (void *ptr, size_t size, size_t nmemb, void *datasource);
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int (*seek_func) (void *datasource, ogg_int64_t offset, int whence);
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int (*close_func) (void *datasource);
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long (*tell_func) (void *datasource);
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} ov_callbacks;
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typedef struct OggVorbis_File {
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void *datasource; /* Pointer to a FILE *, etc. */
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int seekable;
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ogg_int64_t offset;
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ogg_int64_t end;
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ogg_sync_state *oy;
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/* If the FILE handle isn't seekable (eg, a pipe), only the current
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stream appears */
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int links;
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ogg_int64_t *offsets;
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ogg_int64_t *dataoffsets;
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ogg_uint32_t *serialnos;
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ogg_int64_t *pcmlengths;
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vorbis_info vi;
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vorbis_comment vc;
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/* Decoding working state local storage */
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ogg_int64_t pcm_offset;
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int ready_state;
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ogg_uint32_t current_serialno;
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int current_link;
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ogg_int64_t bittrack;
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ogg_int64_t samptrack;
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ogg_stream_state *os; /* take physical pages, weld into a logical
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stream of packets */
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vorbis_dsp_state *vd; /* central working state for the packet->PCM decoder */
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ov_callbacks callbacks;
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} OggVorbis_File;
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extern int ov_clear(OggVorbis_File *vf);
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extern int ov_open(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
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extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
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char *initial, long ibytes, ov_callbacks callbacks);
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extern int ov_test(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
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extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
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char *initial, long ibytes, ov_callbacks callbacks);
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extern int ov_test_open(OggVorbis_File *vf);
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extern long ov_bitrate(OggVorbis_File *vf,int i);
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extern long ov_bitrate_instant(OggVorbis_File *vf);
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extern long ov_streams(OggVorbis_File *vf);
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extern long ov_seekable(OggVorbis_File *vf);
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extern long ov_serialnumber(OggVorbis_File *vf,int i);
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extern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i);
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extern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i);
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extern ogg_int64_t ov_time_total(OggVorbis_File *vf,int i);
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extern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t pos);
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extern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos);
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extern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
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extern int ov_time_seek(OggVorbis_File *vf,ogg_int64_t pos);
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extern int ov_time_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
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extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf);
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extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf);
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extern ogg_int64_t ov_time_tell(OggVorbis_File *vf);
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extern vorbis_info *ov_info(OggVorbis_File *vf,int link);
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extern vorbis_comment *ov_comment(OggVorbis_File *vf,int link);
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extern long ov_read(OggVorbis_File *vf,void *buffer,int length,
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int *bitstream);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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