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https://github.com/Serial-ATA/lofty-rs
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Update ogg_pager
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parent
bc9fbd87ab
commit
3f0d6d8b00
8 changed files with 20 additions and 62 deletions
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@ -15,7 +15,7 @@ flate2 = { version = "1.0.22", optional = true }
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# Vorbis comments pictures
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base64 = { version = "0.13.0", optional = true }
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# OGG Vorbis/Opus
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ogg_pager = "0.1.8"
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ogg_pager = "0.1.9"
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# Key maps
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lazy_static = "1.4.0"
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paste = "1.0.6"
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@ -27,54 +27,10 @@ use std::io::{Read, Seek};
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use ogg_pager::Page;
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#[cfg(feature = "vorbis_comments")]
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pub(self) fn page_from_packet(packet: &mut [u8]) -> Result<Vec<Page>> {
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let mut pages: Vec<Page> = Vec::new();
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let reader = &mut &packet[..];
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let mut start = 0_u64;
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let mut i = 0;
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while !reader.is_empty() {
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let header_type = if i == 0 { 0 } else { 1_u8 };
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let size = std::cmp::min(65025_u64, reader.len() as u64);
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if i != 0 {
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if let Some(s) = start.checked_add(size) {
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start = s
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} else {
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return Err(LoftyError::TooMuchData);
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}
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}
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let mut content = vec![0; size as usize];
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reader.read_exact(&mut content)?;
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let end = start + size;
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pages.push(Page {
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content,
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header_type,
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abgp: 0,
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serial: 0, // Retrieved later
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seq_num: (i + 1) as u32,
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checksum: 0, // Calculated later
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start,
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end,
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});
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i += 1;
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}
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Ok(pages)
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}
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pub(self) fn verify_signature(page: &Page, sig: &[u8]) -> Result<()> {
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let sig_len = sig.len();
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if page.content.len() < sig_len || &page.content[..sig_len] != sig {
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if page.content().len() < sig_len || &page.content()[..sig_len] != sig {
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return Err(LoftyError::Ogg("File missing magic signature"));
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}
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@ -97,7 +97,7 @@ where
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let first_page_abgp = first_page.abgp;
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// Skip identification header
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let first_page_content = &mut &first_page.content[8..];
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let first_page_content = &mut &first_page.content()[8..];
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let version = first_page_content.read_u8()?;
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let channels = first_page_content.read_u8()?;
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@ -12,12 +12,11 @@ pub(crate) fn write_to(
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pages: &mut [Page],
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) -> Result<()> {
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let reached_md_end: bool;
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let mut remaining = Vec::new();
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loop {
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let p = Page::read(data, true)?;
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if p.header_type != 1 {
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if p.header_type() & 0x01 != 0x01 {
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data.seek(SeekFrom::Start(p.start as u64))?;
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reached_md_end = true;
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break;
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@ -28,6 +27,7 @@ pub(crate) fn write_to(
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return Err(LoftyError::Opus("File ends with comment header"));
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}
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let mut remaining = Vec::new();
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data.read_to_end(&mut remaining)?;
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for mut p in pages.iter_mut() {
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@ -69,15 +69,15 @@ where
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let mut md_pages: Vec<u8> = Vec::new();
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md_pages.extend(md_page.content[comment_sig.len()..].iter());
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md_pages.extend(md_page.content()[comment_sig.len()..].iter());
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while let Ok(page) = Page::read(data, false) {
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if md_pages.len() > 125_829_120 {
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return Err(LoftyError::TooMuchData);
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}
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if page.header_type == 1 {
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md_pages.extend(page.content.iter());
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if page.header_type() & 0x01 == 1 {
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md_pages.extend(page.content().iter());
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} else {
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data.seek(SeekFrom::Start(page.start))?;
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break;
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@ -116,7 +116,7 @@ where
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let first_page_abgp = first_page.abgp;
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// Skip identification header
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let first_page_content = &mut &first_page.content[7..];
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let first_page_content = &mut &first_page.content()[7..];
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let version = first_page_content.read_u32::<LittleEndian>()?;
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@ -36,7 +36,7 @@ pub(crate) fn write_to(
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loop {
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let p = Page::read(data, false)?;
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if p.header_type != 1 {
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if p.header_type() & 0x01 != 1 {
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data.seek(SeekFrom::Start(p.start as u64))?;
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data.read_to_end(&mut remaining)?;
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@ -44,7 +44,7 @@ pub(crate) fn write_to(
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break;
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}
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c.write_all(&p.content)?;
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c.write_all(p.content())?;
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}
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if !reached_md_end {
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@ -82,12 +82,12 @@ pub(crate) fn write_to(
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if i == pages_len {
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// Add back the framing bit
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p.content.push(1);
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p.extend(&[1]);
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// The segment tables of current page and the setup header have to be combined
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let mut seg_table = Vec::new();
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seg_table.extend(p.segments().iter());
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seg_table.extend(ogg_pager::segments(&*setup));
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seg_table.append(&mut ogg_pager::segment_table(p.content().len())?);
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seg_table.append(&mut ogg_pager::segment_table(setup.len())?);
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let mut seg_table_len = seg_table.len();
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@ -1,4 +1,4 @@
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use super::{page_from_packet, verify_signature};
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use super::verify_signature;
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use crate::error::{LoftyError, Result};
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use crate::ogg::constants::{OPUSTAGS, VORBIS_COMMENT_HEAD};
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use crate::ogg::tag::VorbisCommentsRef;
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@ -79,7 +79,9 @@ pub(super) fn create_pages(
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writer.write_u32::<LittleEndian>(count)?;
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writer.seek(SeekFrom::Start(packet_end))?;
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page_from_packet(writer.get_mut())
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// Stream serial is retrieved later
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// Checksum is calculated later
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Ok(ogg_pager::paginate(writer.get_ref(), 0, 0, 0))
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}
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#[cfg(feature = "vorbis_comments")]
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@ -95,7 +97,7 @@ pub(super) fn write(data: &mut File, tag: &mut VorbisCommentsRef, sig: &[u8]) ->
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verify_signature(&first_md_page, sig)?;
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// Retain the file's vendor string
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let md_reader = &mut &first_md_page.content[sig.len()..];
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let md_reader = &mut &first_md_page.content()[sig.len()..];
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let vendor_len = md_reader.read_u32::<LittleEndian>()?;
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let mut vendor = vec![0; vendor_len as usize];
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@ -114,7 +116,7 @@ pub(super) fn write(data: &mut File, tag: &mut VorbisCommentsRef, sig: &[u8]) ->
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super::vorbis::write::write_to(
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data,
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&mut writer,
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first_md_page.content,
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first_md_page.take_content(),
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ser,
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&mut pages,
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)?;
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