fn read_qt_wave_atom()

in mp4parse/src/tests.rs [970:1011]

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

fn read_qt_wave_atom() {
    let esds = make_fullbox(BoxSize::Auto, b"esds", 0, |s| {
        s.B8(0x03) // elementary stream descriptor tag
            .B8(0x12) // esds length
            .append_repeated(0, 2)
            .B8(0x00) // flags
            .B8(0x04) // decoder config descriptor tag
            .B8(0x0d) // dcds length
            .B8(0x6b) // mp3
            .append_repeated(0, 12)
    })
    .into_inner();
    let chan = make_box(BoxSize::Auto, b"chan", |s| {
        s.append_repeated(0, 10) // we don't care its data.
    })
    .into_inner();
    let wave = make_box(BoxSize::Auto, b"wave", |s| s.append_bytes(esds.as_slice())).into_inner();
    let mut stream = make_box(BoxSize::Auto, b"mp4a", |s| {
        s.append_repeated(0, 6)
            .B16(1) // data_reference_count
            .B16(1) // verion: qt -> 1
            .append_repeated(0, 6)
            .B16(2)
            .B16(16)
            .append_repeated(0, 4)
            .B32(48000 << 16)
            .append_repeated(0, 16)
            .append_bytes(wave.as_slice())
            .append_bytes(chan.as_slice())
    });

    let mut iter = super::BoxIter::new(&mut stream);
    let mut stream = iter.next_box().unwrap().unwrap();
    let sample_entry =
        super::read_audio_sample_entry(&mut stream).expect("fail to read qt wave atom");
    match sample_entry {
        super::SampleEntry::Audio(sample_entry) => {
            assert_eq!(sample_entry.codec_type, super::CodecType::MP3)
        }
        _ => panic!("fail to read audio sample enctry"),
    }
}