fn read_auxc()

in mp4parse/src/lib.rs [3910:3933]

• 21 lines of code
• 3 McCabe index (conditional complexity)

fn read_auxc<T: Read>(src: &mut BMFFBox<T>) -> Result<AuxiliaryTypeProperty> {
    let version = read_fullbox_version_no_flags(src)?;
    if version != 0 {
        return Err(Error::Unsupported("auxC version"));
    }

    let mut aux = TryString::new();
    src.try_read_to_end(&mut aux)?;

    let (aux_type, aux_subtype): (TryString, TryVec<u8>);
    if let Some(nul_byte_pos) = aux.iter().position(|&b| b == b'\0') {
        let (a, b) = aux.as_slice().split_at(nul_byte_pos);
        aux_type = a.try_into()?;
        aux_subtype = (b[1..]).try_into()?;
    } else {
        aux_type = aux;
        aux_subtype = TryVec::new();
    }

    Ok(AuxiliaryTypeProperty {
        aux_type,
        aux_subtype,
    })
}