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more config options, unpack error handling, fuzzing

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This commit is contained in:
Dennis Ranke
2022-09-27 17:16:05 +02:00
parent 8715dede0e
commit f6642f07c9
13 changed files with 515 additions and 62 deletions
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10
src/greedy_packer.rs
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@@ -19,15 +19,16 @@ pub fn pack(
}
let mut encoded_match = false;
if let Some(m) = match_finder.matches(pos).next() {
let max_offset = 1 << (m.length * 3 - 1).min(31);
let max_offset = config.max_offset.min(1 << (m.length * 3 - 1).min(31));
let offset = pos - m.pos;
if offset < max_offset && m.length >= config.min_length() {
let length = m.length.min(config.max_length);
lz::Op::Match {
offset: offset as u32,
len: m.length as u32,
len: length as u32,
}
.encode(&mut rans_coder, &mut state, config);
pos += m.length;
pos += length;
encoded_match = true;
}
}
@@ -39,7 +40,8 @@ pub fn pack(
.iter()
.zip(data[(pos - offset)..].iter())
.take_while(|(a, b)| a == b)
.count();
.count()
.min(config.max_length);
if length >= config.min_length() {
lz::Op::Match {
offset: offset as u32,