flowly_mp4/mp4box/
edts.rs

1use serde::Serialize;
2use std::io::Write;
3
4use crate::mp4box::elst::ElstBox;
5use crate::mp4box::*;
6
7#[derive(Debug, Clone, PartialEq, Eq, Default, Serialize)]
8pub struct EdtsBox {
9    pub elst: Option<ElstBox>,
10}
11
12impl EdtsBox {
13    pub fn get_type(&self) -> BoxType {
14        BoxType::EdtsBox
15    }
16
17    pub fn get_size(&self) -> u64 {
18        let mut size = HEADER_SIZE;
19        if let Some(ref elst) = self.elst {
20            size += elst.box_size();
21        }
22        size
23    }
24}
25
26impl Mp4Box for EdtsBox {
27    const TYPE: BoxType = BoxType::EdtsBox;
28
29    fn box_size(&self) -> u64 {
30        self.get_size()
31    }
32
33    fn to_json(&self) -> Result<String, Error> {
34        Ok(serde_json::to_string(&self).unwrap())
35    }
36
37    fn summary(&self) -> Result<String, Error> {
38        let s = String::new();
39        Ok(s)
40    }
41}
42
43impl BlockReader for EdtsBox {
44    fn read_block<'a>(reader: &mut impl Reader<'a>) -> Result<Self, Error> {
45        Ok(EdtsBox {
46            elst: reader.try_find_box::<ElstBox>()?,
47        })
48    }
49
50    fn size_hint() -> usize {
51        0
52    }
53}
54
55impl<W: Write> WriteBox<&mut W> for EdtsBox {
56    fn write_box(&self, writer: &mut W) -> Result<u64, Error> {
57        let size = self.box_size();
58        BoxHeader::new(Self::TYPE, size).write(writer)?;
59
60        if let Some(ref elst) = self.elst {
61            elst.write_box(writer)?;
62        }
63
64        Ok(size)
65    }
66}