mirror of
https://github.com/alfg/mp4-rust.git
synced 2024-05-19 16:58:04 +00:00
Merge 8de496ee0c
into b4fca8a199
This commit is contained in:
commit
495a8d400f
109
src/mp4box/adrm.rs
Normal file
109
src/mp4box/adrm.rs
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@ -0,0 +1,109 @@
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use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
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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, Serialize)]
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pub struct AdrmBox {
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#[serde(serialize_with = "<[_]>::serialize")]
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pub drm_blob: [u8; 48],
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pub file_checksum: [u8; 20],
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#[serde(serialize_with = "<[_]>::serialize")]
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pub unknown0: [u8; 60],
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}
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impl Mp4Box for AdrmBox {
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fn box_type(&self) -> BoxType {
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BoxType::AdrmBox
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}
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fn box_size(&self) -> u64 {
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156
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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 mut s = String::with_capacity(49);
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s.push_str("checksum=");
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for b in self.file_checksum.iter() {
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s.push_str(&format!("{:02x}", b));
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}
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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 AdrmBox {
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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 result = AdrmBox {
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drm_blob: [0u8; 48],
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file_checksum: [0u8; 20],
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unknown0: [0u8; 60],
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};
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reader.read_u32::<BigEndian>()?; // 56
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reader.read_u32::<BigEndian>()?; // 1
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reader.read_exact(&mut result.drm_blob)?;
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reader.read_u32::<BigEndian>()?; // 0
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reader.read_u32::<BigEndian>()?; // 1
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reader.read_u32::<BigEndian>()?; // 0
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reader.read_exact(&mut result.file_checksum)?;
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reader.read_exact(&mut result.unknown0)?;
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assert_eq!(reader.stream_position()?, start + size);
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Ok(result)
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}
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}
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impl<W: Write> WriteBox<&mut W> for AdrmBox {
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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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writer.write_u32::<BigEndian>(56)?;
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writer.write_u32::<BigEndian>(1)?;
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writer.write_all(&self.drm_blob)?;
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writer.write_u32::<BigEndian>(0)?;
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writer.write_u32::<BigEndian>(1)?;
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writer.write_u32::<BigEndian>(0)?;
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writer.write_all(&self.file_checksum)?;
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writer.write_all(&self.unknown0)?;
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Ok(size)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::mp4box::BoxHeader;
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use std::io::Cursor;
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#[test]
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fn test_adrm() {
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let src_box = AdrmBox {
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drm_blob: [29u8; 48],
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file_checksum: [244u8; 20],
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unknown0: [113u8; 60],
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};
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let mut buf = Vec::new();
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src_box.write_box(&mut buf).unwrap();
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assert_eq!(buf.len(), src_box.box_size() as usize);
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let mut reader = Cursor::new(&buf);
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let header = BoxHeader::read(&mut reader).unwrap();
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assert_eq!(header.name, BoxType::AdrmBox);
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assert_eq!(src_box.box_size(), header.size);
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let dst_box = AdrmBox::read_box(&mut reader, header.size).unwrap();
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assert_eq!(src_box, dst_box);
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}
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}
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@ -62,6 +62,7 @@ use std::io::{Read, Seek, SeekFrom, Write};
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use crate::*;
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pub(crate) mod adrm;
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pub(crate) mod avc1;
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pub(crate) mod co64;
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pub(crate) mod ctts;
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@ -237,6 +238,7 @@ boxtype! {
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DayBox => 0xa9646179,
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CovrBox => 0x636f7672,
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DescBox => 0x64657363,
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AdrmBox => 0x6164726d,
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WideBox => 0x77696465
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}
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@ -2,7 +2,7 @@ use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
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use serde::Serialize;
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use std::io::{Read, Seek, Write};
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use crate::mp4box::*;
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use crate::{adrm::AdrmBox, mp4box::*};
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#[derive(Debug, Clone, PartialEq, Eq, Serialize)]
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pub struct Mp4aBox {
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@ -12,6 +12,7 @@ pub struct Mp4aBox {
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#[serde(with = "value_u32")]
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pub samplerate: FixedPointU16,
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pub adrm: Option<AdrmBox>,
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pub esds: Option<EsdsBox>,
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}
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@ -22,6 +23,7 @@ impl Default for Mp4aBox {
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channelcount: 2,
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samplesize: 16,
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samplerate: FixedPointU16::new(48000),
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adrm: None,
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esds: Some(EsdsBox::default()),
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}
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}
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@ -34,6 +36,7 @@ impl Mp4aBox {
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channelcount: config.chan_conf as u16,
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samplesize: 16,
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samplerate: FixedPointU16::new(config.freq_index.freq() as u16),
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adrm: None,
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esds: Some(EsdsBox::new(config)),
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}
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}
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@ -89,9 +92,10 @@ impl<R: Read + Seek> ReadBox<&mut R> for Mp4aBox {
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reader.read_u32::<BigEndian>()?; // pre-defined, reserved
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let samplerate = FixedPointU16::new_raw(reader.read_u32::<BigEndian>()?);
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let mut adrm = None;
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let mut esds = None;
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let current = reader.stream_position()?;
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if current < start + size {
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let mut current = reader.stream_position()?;
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while current < start + size {
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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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@ -100,10 +104,19 @@ impl<R: Read + Seek> ReadBox<&mut R> for Mp4aBox {
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));
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}
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if name == BoxType::EsdsBox {
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esds = Some(EsdsBox::read_box(reader, s)?);
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match name {
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BoxType::AdrmBox => {
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adrm = Some(AdrmBox::read_box(reader, s)?);
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}
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BoxType::EsdsBox => {
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esds = Some(EsdsBox::read_box(reader, s)?);
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}
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_ => {
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skip_box(reader, s)?;
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}
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}
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skip_bytes_to(reader, start + size)?;
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current = reader.stream_position()?;
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}
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Ok(Mp4aBox {
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@ -111,6 +124,7 @@ impl<R: Read + Seek> ReadBox<&mut R> for Mp4aBox {
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channelcount,
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samplesize,
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samplerate,
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adrm,
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esds,
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})
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}
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@ -605,6 +619,7 @@ mod tests {
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channelcount: 2,
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samplesize: 16,
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samplerate: FixedPointU16::new(48000),
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adrm: None,
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esds: Some(EsdsBox {
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version: 0,
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flags: 0,
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@ -647,6 +662,7 @@ mod tests {
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channelcount: 2,
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samplesize: 16,
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samplerate: FixedPointU16::new(48000),
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adrm: None,
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esds: None,
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};
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let mut buf = Vec::new();
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@ -107,6 +107,10 @@ impl<R: Read + Seek> ReadBox<&mut R> for StsdBox {
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BoxType::Tx3gBox => {
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tx3g = Some(Tx3gBox::read_box(reader, s)?);
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}
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// aavd
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BoxType::UnknownBox(0x61617664) => {
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mp4a = Some(Mp4aBox::read_box(reader, s)?);
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}
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_ => {}
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}
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