mirror of
https://github.com/alfg/mp4-rust.git
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93 lines
2.1 KiB
Rust
93 lines
2.1 KiB
Rust
use serde::Serialize;
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use std::io::{Read, Seek, Write};
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use crate::mp4box::*;
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#[derive(Debug, Clone, PartialEq, Eq, Default, Serialize)]
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pub struct SchiBox {
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pub tenc: Option<TencBox>,
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}
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impl SchiBox {
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pub fn get_type(&self) -> BoxType {
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BoxType::SchiBox
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}
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pub fn get_size(&self) -> u64 {
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let mut size = HEADER_SIZE;
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if let Some(ref tenc) = self.tenc {
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size += tenc.get_size();
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}
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size
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}
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}
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impl Mp4Box for SchiBox {
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fn box_type(&self) -> BoxType {
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self.get_type()
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}
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fn box_size(&self) -> u64 {
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self.get_size()
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}
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fn to_json(&self) -> Result<String> {
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Ok(serde_json::to_string(&self).unwrap())
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}
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fn summary(&self) -> Result<String> {
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let s = String::new();
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Ok(s)
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}
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}
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impl<R: Read + Seek> ReadBox<&mut R> for SchiBox {
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fn read_box(reader: &mut R, size: u64) -> Result<Self> {
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let start = box_start(reader)?;
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let mut tenc = None;
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let mut current = reader.stream_position()?;
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let end = start + size;
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while current < end {
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// Get box header.
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let header = BoxHeader::read(reader)?;
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let BoxHeader { name, size: s } = header;
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if s > size {
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return Err(Error::InvalidData(
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"schi box contains a box with a larger size than it",
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));
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}
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match name {
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BoxType::TencBox => {
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tenc = Some(TencBox::read_box(reader, s)?);
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}
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_ => {
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// XXX warn!()
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skip_box(reader, s)?;
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}
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}
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current = reader.stream_position()?;
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}
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skip_bytes_to(reader, start + size)?;
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Ok(SchiBox { tenc })
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}
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}
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impl<W: Write> WriteBox<&mut W> for SchiBox {
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fn write_box(&self, writer: &mut W) -> Result<u64> {
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let size = self.box_size();
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BoxHeader::new(self.box_type(), size).write(writer)?;
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if let Some(ref tenc) = self.tenc {
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tenc.write_box(writer)?;
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}
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Ok(size)
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}
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}
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