flowly_mp4/mp4box/
traf.rs

1use serde::Serialize;
2use std::io::Write;
3
4use crate::mp4box::*;
5use crate::mp4box::{tfdt::TfdtBox, tfhd::TfhdBox, trun::TrunBox};
6
7#[derive(Debug, Clone, PartialEq, Eq, Default, Serialize)]
8pub struct TrafBox {
9    pub tfhd: TfhdBox,
10    pub tfdt: Option<TfdtBox>,
11    pub trun: Option<TrunBox>,
12}
13
14impl TrafBox {
15    pub fn get_size(&self) -> u64 {
16        let mut size = HEADER_SIZE;
17        size += self.tfhd.box_size();
18        if let Some(ref tfdt) = self.tfdt {
19            size += tfdt.box_size();
20        }
21        if let Some(ref trun) = self.trun {
22            size += trun.box_size();
23        }
24        size
25    }
26}
27
28impl Mp4Box for TrafBox {
29    const TYPE: BoxType = BoxType::TrafBox;
30
31    fn box_size(&self) -> u64 {
32        self.get_size()
33    }
34
35    fn to_json(&self) -> Result<String, Error> {
36        Ok(serde_json::to_string(&self).unwrap())
37    }
38
39    fn summary(&self) -> Result<String, Error> {
40        let s = String::new();
41        Ok(s)
42    }
43}
44
45impl BlockReader for TrafBox {
46    fn read_block<'a>(reader: &mut impl Reader<'a>) -> Result<Self, Error> {
47        let (tfhd, tfdt, trun) = reader.try_find_box3()?;
48        let Some(tfhd) = tfhd else {
49            return Err(Error::BoxNotFound(BoxType::TfhdBox));
50        };
51
52        Ok(TrafBox { tfhd, tfdt, trun })
53    }
54
55    fn size_hint() -> usize {
56        TfhdBox::size_hint()
57    }
58}
59
60impl<W: Write> WriteBox<&mut W> for TrafBox {
61    fn write_box(&self, writer: &mut W) -> Result<u64, Error> {
62        let size = self.box_size();
63        BoxHeader::new(Self::TYPE, size).write(writer)?;
64
65        self.tfhd.write_box(writer)?;
66
67        if let Some(ref tfdt) = self.tfdt {
68            tfdt.write_box(writer)?;
69        }
70
71        if let Some(ref trun) = self.trun {
72            trun.write_box(writer)?;
73        }
74
75        Ok(size)
76    }
77}
flowly_mp4/mp4box/traf.rs

flowly_mp4/mp4box/
traf.rs
