dtourolle
77a1925bac
The crate as crates.io publishes it, minus .cargo-ok, its Cargo.lock and data/testdata (13 MB of sample files only its own tests read). Not yet routed through [patch.crates-io]; the next commit is the patch.
64 lines
1.7 KiB
Rust
64 lines
1.7 KiB
Rust
// SPDX-License-Identifier: MIT
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// Copyright 2020 Alfred Gutierrez
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// Copyright 2021 Daniel Vogelbacher <daniel@chaospixel.com>
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use super::{BoxHeader, FourCC, ReadBox, Result, read_box_header_ext};
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use byteorder::{BigEndian, ReadBytesExt};
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use serde::{Deserialize, Serialize};
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use std::io::{Read, Seek, SeekFrom};
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#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize)]
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pub struct MdhdBox {
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pub header: BoxHeader,
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pub version: u8,
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pub flags: u32,
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pub creation_time: u64,
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pub modification_time: u64,
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pub timescale: u32,
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pub duration: u64,
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pub language: String,
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}
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impl MdhdBox {
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pub const TYP: FourCC = FourCC::with(['m', 'd', 'h', 'd']);
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}
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impl<R: Read + Seek> ReadBox<&mut R> for MdhdBox {
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fn read_box(reader: &mut R, header: BoxHeader) -> Result<Self> {
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let (version, flags) = read_box_header_ext(reader)?;
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let (creation_time, modification_time, timescale, duration) = if version == 1 {
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(
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reader.read_u64::<BigEndian>()?,
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reader.read_u64::<BigEndian>()?,
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reader.read_u32::<BigEndian>()?,
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reader.read_u64::<BigEndian>()?,
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)
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} else {
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assert_eq!(version, 0);
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(
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reader.read_u32::<BigEndian>()? as u64,
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reader.read_u32::<BigEndian>()? as u64,
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reader.read_u32::<BigEndian>()?,
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reader.read_u32::<BigEndian>()? as u64,
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)
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};
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let _language_code = reader.read_u16::<BigEndian>()?;
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//let language = language_string(language_code); // TODO
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let language = String::from("FIXME");
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reader.seek(SeekFrom::Start(header.end_offset()))?;
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Ok(Self {
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header,
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version,
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flags,
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creation_time,
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modification_time,
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timescale,
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duration,
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language,
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})
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}
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}
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