void libvlc_vlm_seek_media( libvlc_instance_t *p_instance, char *psz_name,
float f_percentage, libvlc_exception_t *p_exception )
void libvlc_vlm_seek_media( libvlc_instance_t *p_instance, char *psz_name,
float f_percentage, libvlc_exception_t *p_exception )