Base Data Structures

There are several data structures used to hold file and bitstream information during libvorbisidec decoding. These structures are declared in "ivorbisfile.h" and "ivorbiscodec.h".

When using libvorbisidec, it's not necessary to know about most of the contents of these data structures, but it may be helpful to understand what they contain.

datatype	purpose
OggVorbis_File	This structure represents the basic file information. It contains a pointer to the physical file or bitstream and various information about that bitstream.
vorbis_comment	This structure contains the file comments. It contains a pointer to unlimited user comments, information about the number of comments, and a vendor description.
vorbis_info	This structure contains encoder-related information about the bitstream. It includes encoder info, channel info, and bitrate limits.
ov_callbacks	This structure contains pointers to the application-specified file manipulation routines set for use by ov_open_callbacks(). See also the provided document on using application-provided callbacks instead of stdio.