mp4_atom/moov/trak/mdia/minf/stbl/
co64.rs

1use crate::*;
2
3#[derive(Debug, Clone, PartialEq, Eq, Default)]
4#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
5pub struct Co64 {
6    pub entries: Vec<u64>,
7}
8
9impl AtomExt for Co64 {
10    type Ext = ();
11
12    const KIND_EXT: FourCC = FourCC::new(b"co64");
13
14    fn decode_body_ext<B: Buf>(buf: &mut B, _ext: ()) -> Result<Self> {
15        let entry_count = u32::decode(buf)?;
16        let mut entries = Vec::new();
17        for _ in 0..entry_count {
18            let chunk_offset = u64::decode(buf)?;
19            entries.push(chunk_offset);
20        }
21
22        Ok(Co64 { entries })
23    }
24
25    fn encode_body_ext<B: BufMut>(&self, buf: &mut B) -> Result<()> {
26        (self.entries.len() as u32).encode(buf)?;
27        for chunk_offset in self.entries.iter() {
28            (chunk_offset).encode(buf)?;
29        }
30
31        Ok(())
32    }
33}
34
35#[cfg(test)]
36mod tests {
37    use super::*;
38
39    #[test]
40    fn test_co64() {
41        let expected = Co64 {
42            entries: vec![267, 1970, 2535, 2803, 11843, 22223, 33584],
43        };
44        let mut buf = Vec::new();
45        expected.encode(&mut buf).unwrap();
46
47        let mut buf = buf.as_ref();
48        let decoded = Co64::decode(&mut buf).unwrap();
49        assert_eq!(decoded, expected);
50    }
51}
mp4_atom/moov/trak/mdia/minf/stbl/co64.rs

mp4_atom/moov/trak/mdia/minf/stbl/
co64.rs
