fn read_stsd_lpcm()

in mp4parse/src/tests.rs [1321:1352]

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

fn read_stsd_lpcm() {
    // Extract from sample converted by ffmpeg.
    // "ffmpeg -i ./gizmo-short.mp4 -acodec pcm_s16le -ar 96000 -vcodec copy -f mov gizmo-short.mov"
    let lpcm = vec![
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x03, 0x00, 0x10, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x48, 0x40, 0xf7, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x7f,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x02,
        0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x18, 0x63, 0x68, 0x61, 0x6e, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x64, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    ];

    let mut stream = make_box(BoxSize::Auto, b"lpcm", |s| s.append_bytes(lpcm.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).unwrap();

    match sample_entry {
        #[allow(clippy::float_cmp)] // The float comparison below is valid and intended.
        super::SampleEntry::Audio(a) => {
            assert_eq!(a.codec_type, super::CodecType::LPCM);
            assert_eq!(a.samplerate, 96000.0);
            assert_eq!(a.channelcount, 1);
            match a.codec_specific {
                super::AudioCodecSpecific::LPCM => (),
                _ => panic!("it should be LPCM!"),
            }
        }
        _ => panic!("it should be a audio sample entry!"),
    }
}