libvorbisenc documentation

libvorbisenc version 1.3.2 - 20101101


declared in "vorbis/vorbisenc.h";

This function performs step-one of a three-step variable bitrate (quality-based) encode setup. It functions similarly to the one-step setup performed by vorbis_encode_init_vbr() but allows an application to make further encode setup tweaks using vorbis_encode_ctl() before finally calling vorbis_encode_setup_init() to complete the setup process.

Before this function is called, the vorbis_info struct should be initialized by using vorbis_info_init() from the libvorbis API. After encoding, vorbis_info_clear should be called.

extern int vorbis_encode_init_vbr(vorbis_info *vi,
			      long channels,
			      long rate,
			      float base_quality);


Pointer to an initialized vorbis_info struct.
The number of channels to be encoded.
The sampling rate of the source audio.
Desired quality level, currently from -0.1 to 1.0 (lo to hi).

Return Values

  • 0 for success
  • less than zero for failure:

  • copyright © 2000-2010 Xiph.Org

    Ogg Vorbis

    libvorbisenc documentation

    libvorbisenc version 1.3.2 - 20101101