157 lines
4.9 KiB
C++
Executable File
157 lines
4.9 KiB
C++
Executable File
/********************************************************************
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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 1994-2001 *
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* by the XIPHOPHORUS Company 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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// modified vorbisfile to use Torque Streams
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// Kurtis Seebaldt
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#ifndef _OV_FILE_H_
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#define _OV_FILE_H_
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#include <stdio.h>
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#include "vorbis/codec.h"
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#ifndef _PLATFORM_H_
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#include "platform/platform.h"
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#endif
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#ifndef _RESMANAGER_H_
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#include "core/resManager.h"
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#endif
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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) (Stream *ptr, size_t size, size_t nmemb, void *datasource);
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// int (*seek_func) (Stream *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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#define NOTOPEN 0
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#define PARTOPEN 1
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#define OPENED 2
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#define STREAMSET 3
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#define INITSET 4
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typedef struct OggVorbis_File {
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Stream *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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long *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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long current_serialno;
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int current_link;
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double bittrack;
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double 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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vorbis_block vb; /* local working space for packet->PCM decode */
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// ov_callbacks callbacks;
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} OggVorbis_File;
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class OggVorbisFile {
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public:
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OggVorbisFile();
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~OggVorbisFile();
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int ov_clear();
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int ov_open(Stream *stream,char *initial,long ibytes);
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int ov_open_callbacks(Stream *datasource,
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char *initial, long ibytes);
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int ov_test(Stream *stream,char *initial,long ibytes);
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int ov_test_callbacks(Stream *datasource,
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char *initial, long ibytes);
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int ov_test_open();
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long ov_bitrate(int i);
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long ov_bitrate_instant();
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long ov_streams();
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long ov_seekable();
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long ov_serialnumber(int i);
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ogg_int64_t ov_raw_total(int i);
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ogg_int64_t ov_pcm_total(int i);
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double ov_time_total(int i);
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int ov_raw_seek(long pos);
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int ov_pcm_seek(ogg_int64_t pos);
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int ov_pcm_seek_page(ogg_int64_t pos);
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int ov_time_seek(double pos);
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int ov_time_seek_page(double pos);
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ogg_int64_t ov_raw_tell();
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ogg_int64_t ov_pcm_tell();
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double ov_time_tell();
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vorbis_info *ov_info(int link);
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vorbis_comment *ov_comment(int link);
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long ov_read_float(float ***pcm_channels,
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int *bitstream);
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long ov_read(char *buffer,int length,
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int bigendianp,int *bitstream);
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private:
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OggVorbis_File *vf;
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long _get_data();
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void _seek_helper(long offset);
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long _get_next_page(ogg_page *og,int boundary);
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long _get_prev_page(ogg_page *og);
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int _bisect_forward_serialno(long begin,long searched,long end,long currentno,long m);
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int _fetch_headers(vorbis_info *vi,vorbis_comment *vc,long *serialno,ogg_page *og_ptr);
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void _prefetch_all_headers(long dataoffset);
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void _make_decode_ready();
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int _open_seekable2();
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void _decode_clear();
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int _process_packet(int readp);
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int _fseek64_wrap(Stream *stream,ogg_int64_t off,int whence);
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int _ov_open1(Stream *stream,char *initial,long ibytes);
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int _ov_open2();
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};
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#endif
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