X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-core%2Fsrc%2Fcompr%2Fdeflate.rs;h=b1266619b87d5b05228dfd21d1d61904e195bef8;hb=886cde4847280b96e10d240c2f2d76abec121dc8;hp=7b36eadff327dcb3d300d058c79633a527040c98;hpb=b191eef3e3e1b6bea510c7e64606d8442f974f8b;p=nihav.git

diff --git a/nihav-core/src/compr/deflate.rs b/nihav-core/src/compr/deflate.rs
index 7b36ead..b126661 100644
--- a/nihav-core/src/compr/deflate.rs
+++ b/nihav-core/src/compr/deflate.rs
@@ -356,6 +356,14 @@ impl Inflate {
         self.full_pos += len;
         Ok(())
     }
+    ///! Sets custom history for decoding an update for already decoded data.
+    pub fn set_dict(&mut self, dict: &[u8]) {
+        let len = dict.len().min(self.buf.len());
+        let start = dict.len() - len;
+        self.buf[..len].copy_from_slice(&dict[start..]);
+        self.bpos = len;
+        self.full_pos = len;
+    }
     ///! Reports whether decoder has finished decoding the input.
     pub fn is_finished(&self) -> bool {
         match self.state {