38c5ba85ab
Fixes various bugs, including several ones with security relevance.
Changes: https://github.com/xiph/vorbis/releases/tag/v1.3.7
(cherry picked from commit 28ad2e8c72)
205 lines
7.8 KiB
C++
205 lines
7.8 KiB
C++
/********************************************************************
|
|
* *
|
|
* 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 1994-2007 *
|
|
* by the Xiph.Org Foundation https://xiph.org/ *
|
|
* *
|
|
********************************************************************
|
|
|
|
function: stdio-based convenience library for opening/seeking/decoding
|
|
|
|
********************************************************************/
|
|
|
|
#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;
|
|
|
|
#ifndef OV_EXCLUDE_STATIC_CALLBACKS
|
|
|
|
/* a few sets of convenient callbacks, especially for use under
|
|
* Windows where ov_open_callbacks() should always be used instead of
|
|
* ov_open() to avoid problems with incompatible crt.o version linking
|
|
* issues. */
|
|
|
|
static int _ov_header_fseek_wrap(FILE *f,ogg_int64_t off,int whence){
|
|
if(f==NULL)return(-1);
|
|
|
|
#ifdef __MINGW32__
|
|
return fseeko64(f,off,whence);
|
|
#elif defined (_WIN32)
|
|
return _fseeki64(f,off,whence);
|
|
#else
|
|
return fseek(f,off,whence);
|
|
#endif
|
|
}
|
|
|
|
/* These structs below (OV_CALLBACKS_DEFAULT etc) are defined here as
|
|
* static data. That means that every file which includes this header
|
|
* will get its own copy of these structs whether it uses them or
|
|
* not unless it #defines OV_EXCLUDE_STATIC_CALLBACKS.
|
|
* These static symbols are essential on platforms such as Windows on
|
|
* which several different versions of stdio support may be linked to
|
|
* by different DLLs, and we need to be certain we know which one
|
|
* we're using (the same one as the main application).
|
|
*/
|
|
|
|
static ov_callbacks OV_CALLBACKS_DEFAULT = {
|
|
(size_t (*)(void *, size_t, size_t, void *)) fread,
|
|
(int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap,
|
|
(int (*)(void *)) fclose,
|
|
(long (*)(void *)) ftell
|
|
};
|
|
|
|
static ov_callbacks OV_CALLBACKS_NOCLOSE = {
|
|
(size_t (*)(void *, size_t, size_t, void *)) fread,
|
|
(int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap,
|
|
(int (*)(void *)) NULL,
|
|
(long (*)(void *)) ftell
|
|
};
|
|
|
|
static ov_callbacks OV_CALLBACKS_STREAMONLY = {
|
|
(size_t (*)(void *, size_t, size_t, void *)) fread,
|
|
(int (*)(void *, ogg_int64_t, int)) NULL,
|
|
(int (*)(void *)) fclose,
|
|
(long (*)(void *)) NULL
|
|
};
|
|
|
|
static ov_callbacks OV_CALLBACKS_STREAMONLY_NOCLOSE = {
|
|
(size_t (*)(void *, size_t, size_t, void *)) fread,
|
|
(int (*)(void *, ogg_int64_t, int)) NULL,
|
|
(int (*)(void *)) NULL,
|
|
(long (*)(void *)) NULL
|
|
};
|
|
|
|
#endif
|
|
|
|
#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
|
|
compatibility; 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_fopen(const char *path,OggVorbis_File *vf);
|
|
extern int ov_open(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes);
|
|
extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
|
|
const char *initial, long ibytes, ov_callbacks callbacks);
|
|
|
|
extern int ov_test(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes);
|
|
extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
|
|
const 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_filter(OggVorbis_File *vf,char *buffer,int length,
|
|
int bigendianp,int word,int sgned,int *bitstream,
|
|
void (*filter)(float **pcm,long channels,long samples,void *filter_param),void *filter_param);
|
|
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
|
|
|