use crate::{Encode, Xz2Encoder, Xz2FileFormat};
use compression_core::{util::PartialBuffer, Level};
use std::io::Result;
/// Lzma encoding stream
#[derive(Debug)]
pub struct LzmaEncoder {
inner: Xz2Encoder,
}
impl LzmaEncoder {
pub fn new(level: Level) -> Self {
Self {
inner: Xz2Encoder::new(Xz2FileFormat::Lzma, level),
}
}
}
impl From<Xz2Encoder> for LzmaEncoder {
fn from(inner: Xz2Encoder) -> Self {
Self { inner }
}
}
impl Encode for LzmaEncoder {
fn encode(
&mut self,
input: &mut PartialBuffer<impl AsRef<[u8]>>,
output: &mut PartialBuffer<impl AsRef<[u8]> + AsMut<[u8]>>,
) -> Result<()> {
self.inner.encode(input, output)
}
fn flush(
&mut self,
_output: &mut PartialBuffer<impl AsRef<[u8]> + AsMut<[u8]>>,
) -> Result<bool> {
// Flush on LZMA 1 is not supported
Ok(true)
}
fn finish(
&mut self,
output: &mut PartialBuffer<impl AsRef<[u8]> + AsMut<[u8]>>,
) -> Result<bool> {
self.inner.finish(output)
}
}
