[PR #114] [MERGED] Brotli custom LZ77 dictionary support. #724

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claunia · 2026-01-29T20:50:33Z

claunia commented

2026-01-29 20:50:33 +00:00

📋 Pull Request Information

Original PR: https://github.com/google/brotli/pull/114
Author: @szabadka
Created: 6/12/2015
Status: ✅ Merged
Merged: 6/12/2015
Merged by: @szabadka

Base: master ← Head: master

📝 Commits (1)

b43df8f Brotli custom LZ77 dictionary support.

📊 Changes

8 files changed (+101 additions, -16 deletions)

View changed files

📝 dec/bit_reader.h (+0 -13)
📝 dec/decode.c (+25 -3)
📝 dec/decode.h (+13 -0)
📝 dec/state.c (+3 -0)
📝 dec/state.h (+4 -0)
📝 enc/encode.cc (+18 -0)
📝 enc/encode.h (+13 -0)
📝 enc/hash.h (+25 -0)

📄 Description

Adds functions to prepend such dictionary to the
encoder and decoder, and twiddles their internal
parameters to do as if that was a previous part of
the input. This dictionary is just a prefilled LZ77
window, it is not related to the built in transformable
brotli dictionary.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/google/brotli/pull/114 **Author:** [@szabadka](https://github.com/szabadka) **Created:** 6/12/2015 **Status:** ✅ Merged **Merged:** 6/12/2015 **Merged by:** [@szabadka](https://github.com/szabadka) **Base:** `master` ← **Head:** `master` --- ### 📝 Commits (1) - [`b43df8f`](https://github.com/google/brotli/commit/b43df8f699484501e0972703e7d453b817de702d) Brotli custom LZ77 dictionary support. ### 📊 Changes **8 files changed** (+101 additions, -16 deletions) <details> <summary>View changed files</summary> 📝 `dec/bit_reader.h` (+0 -13) 📝 `dec/decode.c` (+25 -3) 📝 `dec/decode.h` (+13 -0) 📝 `dec/state.c` (+3 -0) 📝 `dec/state.h` (+4 -0) 📝 `enc/encode.cc` (+18 -0) 📝 `enc/encode.h` (+13 -0) 📝 `enc/hash.h` (+25 -0) </details> ### 📄 Description Adds functions to prepend such dictionary to the encoder and decoder, and twiddles their internal parameters to do as if that was a previous part of the input. This dictionary is just a prefilled LZ77 window, it is not related to the built in transformable brotli dictionary. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

claunia added the pull-request label 2026-01-29 20:50:33 +00:00

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Reference: starred/brotli#724