use crate::Compressor;
pub struct BgzfCompressor {
inner: bgzf::Compressor,
}
impl Compressor for BgzfCompressor {
type Error = bgzf::BgzfError;
type CompressionLevel = bgzf::CompressionLevel;
const BLOCK_SIZE: usize = bgzf::BGZF_BLOCK_SIZE;
fn new(compression_level: Self::CompressionLevel) -> Self {
Self { inner: bgzf::Compressor::new(compression_level) }
}
fn default_compression_level() -> Self::CompressionLevel {
bgzf::CompressionLevel::new(5).unwrap()
}
fn new_compression_level(compression_level: u8) -> Result<Self::CompressionLevel, Self::Error> {
bgzf::CompressionLevel::new(compression_level)
}
fn compress(
&mut self,
input: &[u8],
output: &mut Vec<u8>,
is_last: bool,
) -> Result<(), Self::Error> {
self.inner.compress(input, output)?;
if is_last {
bgzf::Compressor::append_eof(output);
}
Ok(())
}
}