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https://github.com/alfg/mp4-rust.git
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3ecfd0cc9d
* Run cargo clippy --fix * Run cargo fmt --all
130 lines
3.3 KiB
Rust
130 lines
3.3 KiB
Rust
use serde::Serialize;
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use std::io::{Read, Seek, SeekFrom, Write};
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use crate::mp4box::*;
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use crate::mp4box::{dinf::DinfBox, smhd::SmhdBox, stbl::StblBox, vmhd::VmhdBox};
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#[derive(Debug, Clone, PartialEq, Default, Serialize)]
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pub struct MinfBox {
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#[serde(skip_serializing_if = "Option::is_none")]
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pub vmhd: Option<VmhdBox>,
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#[serde(skip_serializing_if = "Option::is_none")]
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pub smhd: Option<SmhdBox>,
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pub dinf: DinfBox,
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pub stbl: StblBox,
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}
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impl MinfBox {
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pub fn get_type(&self) -> BoxType {
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BoxType::MinfBox
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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 vmhd) = self.vmhd {
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size += vmhd.box_size();
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}
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if let Some(ref smhd) = self.smhd {
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size += smhd.box_size();
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}
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size += self.dinf.box_size();
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size += self.stbl.box_size();
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size
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}
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}
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impl Mp4Box for MinfBox {
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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 MinfBox {
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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 vmhd = None;
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let mut smhd = None;
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let mut dinf = None;
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let mut stbl = 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::VmhdBox => {
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vmhd = Some(VmhdBox::read_box(reader, s)?);
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}
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BoxType::SmhdBox => {
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smhd = Some(SmhdBox::read_box(reader, s)?);
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}
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BoxType::DinfBox => {
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dinf = Some(DinfBox::read_box(reader, s)?);
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}
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BoxType::StblBox => {
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stbl = Some(StblBox::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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if dinf.is_none() {
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return Err(Error::BoxNotFound(BoxType::DinfBox));
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}
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if stbl.is_none() {
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return Err(Error::BoxNotFound(BoxType::StblBox));
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}
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skip_bytes_to(reader, start + size)?;
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Ok(MinfBox {
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vmhd,
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smhd,
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dinf: dinf.unwrap(),
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stbl: stbl.unwrap(),
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})
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}
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}
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impl<W: Write> WriteBox<&mut W> for MinfBox {
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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 vmhd) = self.vmhd {
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vmhd.write_box(writer)?;
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}
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if let Some(ref smhd) = self.smhd {
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smhd.write_box(writer)?;
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}
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self.dinf.write_box(writer)?;
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self.stbl.write_box(writer)?;
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Ok(size)
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}
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}
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