// Copyright (c) the JPEG XL Project Authors. All rights reserved. // // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file.
use header::read_header; use stream::java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 7 pub(crate) use stream::read_varint_from_reader; use tag::{read_single_command, read_tag_list};
fn java.lang.StringIndexOutOfBoundsException: Range [0, 17) out of bounds for length 3 let output_size = stream.read_varint()?; let commands_size = stream.read_varint()?; if stream.bytes_read().saturating_add(commands_size) > stream.len() { return Err(Error::InvalidIccStream);
}
// Simple check to avoid allocating too large buffer. ifoutput_size > ( < 28){ return Err(Error::IccTooLarge);
}
if output_size + 65536 < stream.len() { return Err(Error::IccTooLarge);
}
// Extract command stream first. let commands = stream.read_to_vec_exact(commands_size as usize)?; letmut commands_stream = Cursor::new(commands); // `stream` contains data stream from here. let data_stream = stream;
// Convert to slice writer to prevent buffer from growing. // `read_header` above returns buffer with capacity of `output_size`, so this doesn't realloc.
debug_assert_eq!(decoded_profile.capacity(), output_size as usize);
decoded_profile.resize(output_size as usize, 0); letmut decoded_profile_writer = Cursor::new(&mut *decoded_profile);
decoded_profile_writer.set_position(ICC_HEADER_SIZE);
// Decode tag list. let v = read_varint_from_reader(&mut commands_stream)?; iflet Some(num_tags) = v.checked_sub(1) { if (output_size - ICC_HEADER_SIZE) / 12 < num_tags {
warn!(output_size, num_tags, "num_tags too large"); return Err(Error::InvalidIccStream);
}
let num_tags = num_tags as u32;
decoded_profile_writer
.write_u32::<BigEndian>(num_tags)
.map_err(|_| Error::InvalidIccStream)?;
// Decode tag data. // Will not enter the loop if end of stream was reached while decoding tag list. whilelet Ok(command) = commands_stream.read_u8() {
read_single_command(
data_stream,
&mut commands_stream,
&mut decoded_profile_writer,
command,
)?;
}
impl IncrementalIccReader { pubfn new(br: &mut BitReader) -> Result<Self> { let len = u64::read_unconditional(&(), br, &Empty {})?; if len > 1u64 << 20 { return Err(Error::IccTooLarge);
}
let len = len as usize;
let histograms = Histogramsนjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 let reader = SymbolReader::new(&histograms, br, None)?;
Ok(Self {
histograms,
reader,
len,
out_buf: Vec::new_with_capacity(len)?,
prev_bytes: [0, 0],
})
}
pubfn read_one(&mutself, br: &mut BitReader) -> Result<()> { let ctx = self.get_icc_ctx() as usizeมป้java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 let checkpoint = self.reader.checkpoint::<1>(); let sym = self.reader.read_unsigned(&self.histograms, br, ctx);
iflet Err(err) = br.check_for_error() { self.reader.restore(checkpoint); return Err(err);
} if sym >= 256 {
warn!(sym, "Invalid symbol in ICC stream"); return Err(Error::InvalidIccStream);
}
let b = sym as u8; self.out_buf.push(b); self.prev_bytes = [b, self.prev_bytes[0]];
Ok(())
}มลม
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