Skip ab/6749736 in stage.

Merged-In: Ibf6d5664a89791c94b19d280057b3dd8809ead5f
Change-Id: Iff7775c02a4d8e52901b699b57c88932aaf72dfa
tree: 4cf9cd94c74d5ba2e80d11e702f7a070f2e3da01
  1. puffin/
  2. scripts/
  3. src/
  4. .clang-format
  5. Android.bp
  6. BUILD.gn
  7. libpuffdiff.pc
  8. libpuffpatch.pc
  9. LICENSE
  10. Makefile
  11. METADATA
  12. OWNERS
  13. PRESUBMIT.cfg
  14. PREUPLOAD.cfg
  15. README.md
  16. README.version
  17. TEST_MAPPING
README.md

Puffin

Source code for Puffin: A utility for deterministic DEFLATE recompression.

TODO(ahassani): Describe the directory structure and how-tos.

Glossary

  • Alphabet A value that occurs in the input stream. It can be either a literal:[0..255], and end of block sign [256], a length[257..285], or a distance [0..29].

  • Huffman code A variable length code representing the Huffman encoded of an alphabet. Huffman codes can be created uniquely using Huffman code length array.

  • Huffman code array An array which an array index identifies a Huffman code and the array element in that index represents the corresponding alphabet. Throughout the code, Huffman code arrays are identified by vectors with postfix hcodes_.

  • Huffman reverse code array An array which an array index identifies an alphabet and the array element in that index contains the Huffman code of the alphabet. Throughout the code, The Huffman reverse code arrays are identified by vectors with postfix rcodes_.

  • Huffman code length The number of bits in a Huffman code.

  • Huffman code length array An array of Huffman code lengths with the array index as the alphabet. Throughout the code, Huffman code length arrays are identified by vectors with postfix lens_.