2022-06-01 03:50:49 +00:00
|
|
|
use serde::Serialize;
|
2020-08-04 23:56:59 +00:00
|
|
|
use std::io::{Read, Seek, Write};
|
2020-07-28 16:36:17 +00:00
|
|
|
|
2020-08-04 23:56:59 +00:00
|
|
|
use crate::mp4box::elst::ElstBox;
|
|
|
|
use crate::mp4box::*;
|
2020-07-28 16:36:17 +00:00
|
|
|
|
2020-09-09 05:24:34 +00:00
|
|
|
#[derive(Debug, Clone, PartialEq, Default, Serialize)]
|
2020-07-28 16:36:17 +00:00
|
|
|
pub struct EdtsBox {
|
|
|
|
pub elst: Option<ElstBox>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl EdtsBox {
|
|
|
|
pub(crate) fn new() -> EdtsBox {
|
|
|
|
Default::default()
|
|
|
|
}
|
2020-08-24 05:11:59 +00:00
|
|
|
|
|
|
|
pub fn get_type(&self) -> BoxType {
|
|
|
|
BoxType::EdtsBox
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn get_size(&self) -> u64 {
|
|
|
|
let mut size = HEADER_SIZE;
|
|
|
|
if let Some(ref elst) = self.elst {
|
|
|
|
size += elst.box_size();
|
|
|
|
}
|
|
|
|
size
|
|
|
|
}
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
impl Mp4Box for EdtsBox {
|
2020-08-25 04:49:58 +00:00
|
|
|
fn box_type(&self) -> BoxType {
|
2022-06-01 03:50:49 +00:00
|
|
|
self.get_type()
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn box_size(&self) -> u64 {
|
2022-06-01 03:50:49 +00:00
|
|
|
self.get_size()
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
2020-09-09 05:24:34 +00:00
|
|
|
|
|
|
|
fn to_json(&self) -> Result<String> {
|
|
|
|
Ok(serde_json::to_string(&self).unwrap())
|
|
|
|
}
|
|
|
|
|
|
|
|
fn summary(&self) -> Result<String> {
|
2022-06-01 03:50:49 +00:00
|
|
|
let s = String::new();
|
2020-09-09 05:24:34 +00:00
|
|
|
Ok(s)
|
|
|
|
}
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
|
|
|
|
2020-07-31 17:12:26 +00:00
|
|
|
impl<R: Read + Seek> ReadBox<&mut R> for EdtsBox {
|
|
|
|
fn read_box(reader: &mut R, size: u64) -> Result<Self> {
|
2020-08-04 23:56:59 +00:00
|
|
|
let start = box_start(reader)?;
|
2020-07-31 17:12:26 +00:00
|
|
|
|
2020-07-28 16:36:17 +00:00
|
|
|
let mut edts = EdtsBox::new();
|
|
|
|
|
2020-07-31 17:12:26 +00:00
|
|
|
let header = BoxHeader::read(reader)?;
|
2020-08-04 23:56:59 +00:00
|
|
|
let BoxHeader { name, size: s } = header;
|
2020-07-28 16:36:17 +00:00
|
|
|
|
2020-07-31 17:12:26 +00:00
|
|
|
match name {
|
|
|
|
BoxType::ElstBox => {
|
|
|
|
let elst = ElstBox::read_box(reader, s)?;
|
|
|
|
edts.elst = Some(elst);
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
2020-07-31 17:12:26 +00:00
|
|
|
_ => {}
|
2020-07-28 16:36:17 +00:00
|
|
|
}
|
2020-07-31 17:12:26 +00:00
|
|
|
|
2020-08-07 03:35:08 +00:00
|
|
|
skip_bytes_to(reader, start + size)?;
|
2020-07-28 16:36:17 +00:00
|
|
|
|
|
|
|
Ok(edts)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-07-31 17:12:26 +00:00
|
|
|
impl<W: Write> WriteBox<&mut W> for EdtsBox {
|
|
|
|
fn write_box(&self, writer: &mut W) -> Result<u64> {
|
2020-07-28 16:36:17 +00:00
|
|
|
let size = self.box_size();
|
2020-08-25 04:49:58 +00:00
|
|
|
BoxHeader::new(self.box_type(), size).write(writer)?;
|
2020-07-28 16:36:17 +00:00
|
|
|
|
2020-07-31 17:12:26 +00:00
|
|
|
if let Some(ref elst) = self.elst {
|
2020-07-28 16:36:17 +00:00
|
|
|
elst.write_box(writer)?;
|
|
|
|
}
|
|
|
|
|
|
|
|
Ok(size)
|
|
|
|
}
|
|
|
|
}
|