vorbis_info

declared in "vorbis/codec.h"

The vorbis_info structure contains information about 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

Specifies the size of the bit reservoir in seconds relative to the nominal bitrate. May be unset.

codec_setup

Pointer to private encoder setup state.