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ace2799c75
This introduces the 'Metadata' trait to enable access to common video metadata such title, year, cover art and more. Reading 'title', 'description', 'poster' and 'year' metadata is implemented here.
45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
use std::io::{Read, Seek};
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use serde::Serialize;
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use crate::mp4box::meta::MetaBox;
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use crate::mp4box::*;
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#[derive(Debug, Clone, PartialEq, Default, Serialize)]
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pub struct UdtaBox {
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#[serde(skip_serializing_if = "Option::is_none")]
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pub meta: Option<MetaBox>,
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}
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impl<R: Read + Seek> ReadBox<&mut R> for UdtaBox {
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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 meta = None;
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let mut current = reader.seek(SeekFrom::Current(0))?;
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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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match name {
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BoxType::MetaBox => {
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meta = Some(MetaBox::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.seek(SeekFrom::Current(0))?;
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}
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skip_bytes_to(reader, start + size)?;
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Ok(UdtaBox { meta })
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}
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}
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