mp4_atom/moov/
ainf.rs

1use crate::*;
2
3ext! {
4    name: Ainf,
5    versions: [0],
6    flags: {
7        hidden = 0,
8    }
9}
10
11#[derive(Debug, Clone, PartialEq, Eq, Default)]
12#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
13pub struct Ainf {
14    pub hidden: bool,
15    // TODO: this could be parsed further if DECE ever becomes important again
16    pub profile_version: u32,
17    pub apid: String,
18}
19
20impl AtomExt for Ainf {
21    const KIND_EXT: FourCC = FourCC::new(b"ainf");
22
23    type Ext = AinfExt;
24
25    fn decode_body_ext<B: Buf>(buf: &mut B, ext: AinfExt) -> Result<Self> {
26        let profile_version = u32::decode(buf)?;
27        let apid = String::decode(buf)?;
28        let remaining = buf.remaining();
29        if remaining != 0 {
30            tracing::warn!("Found additional data in ainf box, which could be additional private boxes, and that data is being ignored.");
31            buf.advance(remaining);
32        }
33        Ok(Ainf {
34            hidden: ext.hidden,
35            profile_version,
36            apid,
37        })
38    }
39
40    fn encode_body_ext<B: BufMut>(&self, buf: &mut B) -> Result<AinfExt> {
41        let ext = AinfExt {
42            hidden: self.hidden,
43            version: AinfVersion::V0,
44        };
45        self.profile_version.encode(buf)?;
46        self.apid.as_str().encode(buf)?;
47        Ok(ext)
48    }
49}
50
51#[cfg(test)]
52mod tests {
53    use super::*;
54
55    const ENCODED_AINF: &[u8] = &[
56        0x00, 0x00, 0x00, 0x38, 0x61, 0x69, 0x6e, 0x66, 0x00, 0x00, 0x00, 0x00, 0x68, 0x31, 0x30,
57        0x37, 0x75, 0x72, 0x6e, 0x3a, 0x64, 0x65, 0x63, 0x65, 0x3a, 0x61, 0x70, 0x69, 0x64, 0x3a,
58        0x6f, 0x72, 0x67, 0x3a, 0x64, 0x65, 0x63, 0x65, 0x63, 0x76, 0x70, 0x3a, 0x64, 0x65, 0x76,
59        0x69, 0x63, 0x65, 0x30, 0x30, 0x32, 0x2d, 0x34, 0x76, 0x37, 0x00,
60    ];
61
62    #[test]
63    fn test_ainf_decode() {
64        let buf: &mut std::io::Cursor<&&[u8]> = &mut std::io::Cursor::new(&ENCODED_AINF);
65        let ainf = Ainf::decode(buf).expect("failed to decode ainf");
66        assert_eq!(
67            ainf,
68            Ainf {
69                hidden: false,
70                profile_version: 1748054071,
71                apid: "urn:dece:apid:org:dececvp:device002-4v7".into(),
72            }
73        );
74    }
75
76    #[test]
77    fn test_ainf_encode() {
78        let ainf = Ainf {
79            hidden: false,
80            profile_version: 1748054071,
81            apid: "urn:dece:apid:org:dececvp:device002-4v7".into(),
82        };
83
84        let mut buf = Vec::new();
85        ainf.encode(&mut buf).unwrap();
86        assert_eq!(buf, ENCODED_AINF);
87    }
88}
mp4_atom/moov/ainf.rs

mp4_atom/moov/
ainf.rs
