vorbis_synthesis_trackonly

declared in "vorbis/codec.h";

This function decodes a Vorbis packet similarly to vorbis_synthesis, except that the vorbis_block produced does not contain any audio data but merely updates the decoder's state as though the block had been actually decoded when vorbis_synthesis_blockin is called on it.

extern int      vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op);

Parameters

vb

The vorbis_block to decode the packet into.

op

The ogg_packet to decode.

Return Values

0 on success.

OV_ENOTAUDIO if the packet is not an audio packet.

OV_EBADPACKET if there was an error in the packet.