mp4_atom/moov/udta/
mod.rs

1mod cprt;
2mod kind;
3mod skip;
4
5pub use cprt::*;
6pub use kind::*;
7pub use skip::*;
8
9use crate::*;
10
11#[derive(Debug, Clone, PartialEq, Eq, Default)]
12#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
13pub struct Udta {
14    pub cprt: Option<Cprt>,
15    pub kind: Option<Kind>,
16    pub meta: Option<Meta>,
17}
18
19impl Atom for Udta {
20    const KIND: FourCC = FourCC::new(b"udta");
21
22    nested! {
23        required: [ ],
24        optional: [ Cprt, Meta, Kind],
25        multiple: [ ],
26    }
27}
28
29#[cfg(test)]
30mod tests {
31    use super::*;
32
33    #[test]
34    fn test_udta_empty() {
35        let expected = Udta {
36            cprt: None,
37            meta: None,
38            kind: None,
39        };
40
41        let mut buf = Vec::new();
42        expected.encode(&mut buf).unwrap();
43
44        let mut buf = buf.as_ref();
45        let output = Udta::decode(&mut buf).unwrap();
46        assert_eq!(output, expected);
47    }
48
49    #[test]
50    fn test_udta() {
51        let expected = Udta {
52            cprt: Some(Cprt {
53                language: "und".into(),
54                notice: "MIT or Apache".into(),
55            }),
56            meta: Some(Meta {
57                hdlr: Hdlr {
58                    handler: FourCC::new(b"fake"),
59                    name: "".into(),
60                },
61                items: vec![],
62            }),
63            kind: Some(Kind {
64                scheme_uri: "http://www.w3.org/TR/html5/".into(),
65                value: "".into(),
66            }),
67        };
68
69        let mut buf = Vec::new();
70        expected.encode(&mut buf).unwrap();
71
72        let mut buf = buf.as_ref();
73        let output = Udta::decode(&mut buf).unwrap();
74        assert_eq!(output, expected);
75    }
76
77    // From MPEG File Format Conformance, isobmff/02_dref_edts_img.mp4
78    const ENCODED_UDTA_WITH_CPRT: &[u8] = &[
79        0x00, 0x00, 0x00, 0x70, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x68, 0x63, 0x70, 0x72,
80        0x74, 0x00, 0x00, 0x00, 0x00, 0x55, 0xc4, 0x45, 0x4e, 0x53, 0x54, 0x20, 0x49, 0x73, 0x6f,
81        0x4d, 0x65, 0x64, 0x69, 0x61, 0x20, 0x43, 0x6f, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x6e,
82        0x63, 0x65, 0x20, 0x46, 0x69, 0x6c, 0x65, 0x73, 0x20, 0x2d, 0x20, 0x45, 0x4e, 0x53, 0x54,
83        0x20, 0x28, 0x63, 0x29, 0x20, 0x32, 0x30, 0x30, 0x36, 0x20, 0x2d, 0x20, 0x52, 0x69, 0x67,
84        0x68, 0x74, 0x73, 0x20, 0x72, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x64, 0x20, 0x66, 0x6f,
85        0x72, 0x20, 0x49, 0x53, 0x4f, 0x20, 0x43, 0x6f, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x6e,
86        0x63, 0x65, 0x20, 0x75, 0x73, 0x65, 0x00,
87    ];
88
89    #[test]
90    fn test_udta_cprt() {
91        let mut buf = std::io::Cursor::new(ENCODED_UDTA_WITH_CPRT);
92
93        let udta = Udta::decode(&mut buf).expect("failed to decode udta");
94
95        assert_eq!(
96            udta,
97            Udta {
98                cprt: Some(Cprt { language: "und".into(), notice: "ENST IsoMedia Conformance Files - ENST (c) 2006 - Rights released for ISO Conformance use".into() }),
99                meta: None,
100                kind: None,
101            }
102        );
103
104        let mut buf = Vec::new();
105        udta.encode(&mut buf).unwrap();
106
107        assert_eq!(buf, ENCODED_UDTA_WITH_CPRT);
108    }
109
110    // From MPEG File Format Conformance, nalu/hevc/hev1_clg1_header.mp4
111    const ENCODED_UDTA_WITH_KIND: &[u8] = &[
112        0x00, 0x00, 0x00, 0x31, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x29, 0x6b, 0x69, 0x6e,
113        0x64, 0x00, 0x00, 0x00, 0x00, 0x75, 0x72, 0x6e, 0x3a, 0x6d, 0x70, 0x65, 0x67, 0x3a, 0x64,
114        0x61, 0x73, 0x68, 0x3a, 0x72, 0x6f, 0x6c, 0x65, 0x3a, 0x32, 0x30, 0x31, 0x31, 0x00, 0x6d,
115        0x61, 0x69, 0x6e, 0x00,
116    ];
117
118    #[test]
119    fn test_udta_kind() {
120        let mut buf = std::io::Cursor::new(ENCODED_UDTA_WITH_KIND);
121
122        let udta = Udta::decode(&mut buf).expect("failed to decode udta");
123
124        assert_eq!(
125            udta,
126            Udta {
127                cprt: None,
128                meta: None,
129                kind: Some(Kind {
130                    scheme_uri: "urn:mpeg:dash:role:2011".into(),
131                    value: "main".into()
132                })
133            }
134        );
135
136        let mut buf = Vec::new();
137        udta.encode(&mut buf).unwrap();
138
139        assert_eq!(buf, ENCODED_UDTA_WITH_KIND);
140    }
141}
mp4_atom/moov/udta/mod.rs

mp4_atom/moov/udta/
mod.rs
