1 // Copyright 2017 The Chromium OS Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef SRC_INCLUDE_PUFFIN_HUFFER_H_
6 #define SRC_INCLUDE_PUFFIN_HUFFER_H_
7 
8 #include <cstddef>
9 #include <memory>
10 
11 #include "puffin/common.h"
12 
13 namespace puffin {
14 
15 class BitWriterInterface;
16 class PuffReaderInterface;
17 class HuffmanTable;
18 
19 class Huffer {
20  public:
21   Huffer();
22   ~Huffer();
23 
24   // Creates a deflate buffer from a puffed buffer. It is the reverse of
25   // |PuffDeflate|.
26   bool HuffDeflate(PuffReaderInterface* pr, BitWriterInterface* bw) const;
27 
28  private:
29   std::unique_ptr<HuffmanTable> dyn_ht_;
30   std::unique_ptr<HuffmanTable> fix_ht_;
31 
32   DISALLOW_COPY_AND_ASSIGN(Huffer);
33 };
34 
35 }  // namespace puffin
36 
37 #endif  // SRC_INCLUDE_PUFFIN_HUFFER_H_
38