mp4_atom/mfra/
mfro.rs

1use crate::*;
2
3/// MovieFragmentRandomAccessOffsetBox (`mfro`).
4///
5/// See ISO/IEC 14496-12:2022 section 8.8.11
6#[derive(Clone, Debug, Default, Eq, PartialEq)]
7#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
8pub struct Mfro {
9    pub parent_size: u32,
10}
11
12impl AtomExt for Mfro {
13    type Ext = ();
14    const KIND_EXT: FourCC = FourCC::new(b"mfro");
15
16    fn decode_body_ext<B: Buf>(buf: &mut B, _ext: ()) -> Result<Self> {
17        Ok(Mfro {
18            parent_size: u32::decode(buf)?,
19        })
20    }
21
22    fn encode_body_ext<B: BufMut>(&self, buf: &mut B) -> Result<()> {
23        self.parent_size.encode(buf)?;
24        Ok(())
25    }
26}
27
28#[cfg(test)]
29mod tests {
30    use super::*;
31
32    #[test]
33    fn test_mfro() {
34        let expected = Mfro { parent_size: 96 };
35        let mut buf = Vec::new();
36        expected.encode(&mut buf).unwrap();
37
38        let mut buf = buf.as_ref();
39        let decoded = Mfro::decode(&mut buf).unwrap();
40        assert_eq!(decoded, expected);
41    }
42}
mp4_atom/mfra/mfro.rs

mp4_atom/mfra/
mfro.rs
