fn read_vpcc_version_1()

in mp4parse/src/tests.rs [466:492]

• 26 lines of code
• 1 McCabe index (conditional complexity)

fn read_vpcc_version_1() {
    let data_length = 12u16;
    let mut stream = make_fullbox(BoxSize::Auto, b"vpcC", 1, |s| {
        s.B8(2) // profile
            .B8(0) // level
            .B8(0b1000_011_0) // bitdepth (4 bits), chroma (3 bits), video full range (1 bit)
            .B8(1) // color primaries
            .B8(1) // transfer characteristics
            .B8(1) // matrix
            .B16(data_length)
            .append_repeated(42, data_length as usize)
    });

    let mut iter = super::BoxIter::new(&mut stream);
    let mut stream = iter.next_box().unwrap().unwrap();
    assert_eq!(stream.head.name, BoxType::VPCodecConfigurationBox);
    let r = super::read_vpcc(&mut stream);
    match r {
        Ok(vpcc) => {
            assert_eq!(vpcc.bit_depth, 8);
            assert_eq!(vpcc.chroma_subsampling, 3);
            assert!(!vpcc.video_full_range_flag);
            assert_eq!(vpcc.matrix_coefficients.unwrap(), 1);
        }
        _ => panic!("vpcc parsing error"),
    }
}