libvorbis documentation

libvorbis version 1.3.2 - 20101101

vorbis_info

declared in "vorbis/codec.h"

The vorbis_info structure contains basic information about the audio in a vorbis bitstream.

typedef struct vorbis_info{
  int version;
  int channels;
  long rate;
  
  long bitrate_upper;
  long bitrate_nominal;
  long bitrate_lower;
  long bitrate_window;

  void *codec_setup;

} vorbis_info;

Relevant Struct Members

version
Vorbis encoder version used to create this bitstream.
channels
Int signifying number of channels in bitstream.
rate
Sampling rate of the bitstream.
bitrate_upper
Specifies the upper limit in a VBR bitstream. If the value matches the bitrate_nominal and bitrate_lower parameters, the stream is fixed bitrate. May be unset if no limit exists.
bitrate_nominal
Specifies the average bitrate for a VBR bitstream. May be unset. If the bitrate_upper and bitrate_lower parameters match, the stream is fixed bitrate.
bitrate_lower
Specifies the lower limit in a VBR bitstream. If the value matches the bitrate_nominal and bitrate_upper parameters, the stream is fixed bitrate. May be unset if no limit exists.
bitrate_window
Currently unset.
codec_setup
Internal structure that contains the detailed/unpacked configuration for decoding the current Vorbis bitstream.



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Ogg Vorbis

libvorbis documentation

libvorbis version 1.3.2 - 20101101