kc3-lang/brotli/research
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
 |
70e7b1ae | 2023-07-06 11:56:38 | simplify building of fuzzer PiperOrigin-RevId: 545950923 | |
 |
ce92c956 | 2023-01-03 20:44:14 | brotlidump: fix dictionary file discovery (#997) | |
|
a8f5813b | 2022-11-17 13:03:09 | Update Documentation: - add note that brotli is a "stream" format, not an archive-like - regenerate .1 with Pandoc Build: - drop legacy "BROTLI_BUILD_PORTABLE" option - drop "BROTLI_SANITIZED" definition Code: - c: comb includes - c/enc: extract encoder state into separate header - c/enc: drop designated q10 codepath - c/enc: dealing better with flushing of empty stream - fix MSVC compilation API: - py: use library version instead of one in version.h - c: add plugable API to report consumed input / produced output - c/java: support "lean" prepared dictionaries (without copy of source) | |
|
8376f72e | 2021-11-10 10:34:39 | Prepare for copybara (#939) Co-authored-by: Eugene Kliuchnikov <eustas@chromium.org> | |
|
62662f87 | 2021-09-08 09:18:45 | Strip "./" in includes (#925) Co-authored-by: Eugene Kliuchnikov <eustas@chromium.org> | |
|
0e42caf3 | 2021-08-31 14:07:17 | Migrate to github actions (#920) Not all combinations are migrated to the initial configuration; corresponding TODOs added. Drive-by: additional combinations uncovered minor portability problems -> fixed Drive-by: remove no-longer used "script" files. Co-authored-by: Eugene Kliuchnikov <eustas@chromium.org> | |
|
68f1b90a | 2021-08-18 19:15:07 | Update (#918) Prepare to use copybara worklow. | |
|
f8c67177 | 2021-06-23 09:40:57 | Update (#908) * re-enable Js build/test * improve decoder performance * rewrite dictionary data in Java/Js to a shorter uncompressed form * improve dictionary generation tool | |
 |
685d7bae | 2020-09-27 19:00:29 | docs: Fix small typo: rougly -> roughly (#849) | |
|
223d80cf | 2020-08-26 12:32:27 | Update (#826) * IMPORTANT: decoder: fix potential overflow when input chunk is >2GiB * simplify max Huffman table size calculation * eliminate symbol duplicates (static arrays in .h files) * minor combing in research/ code | |
|
7f740f13 | 2020-05-15 11:06:21 | Update (#807) - fix formatting - fix type conversion - fix no-op arithmetic with null-pointer - improve performance of hash_longest_match64 - go: detect read after close - java decoder: support compound dictionary - remove executable flag on non-scripts | |
|
4b2b2d4f | 2019-04-12 13:57:42 | Update (#749) Update: * Bazel: fix MSVC configuration * C: common: extended documentation and helpers around distance codes * C: common: enable BROTLI_DCHECK in "debug" builds * C: common: fix implicit trailing zero in `kPrefixSuffix` * C: dec: fix possible bit reader discharge for "large-window" mode * C: dec: simplify distance decoding via lookup table * C: dec: reuse decoder state members memory via union with lookup table * C: dec: add decoder state diagram * C: enc: clarify access to static dictionary * C: enc: improve static dictionary hash * C: enc: add "stream offset" parameter for parallel encoding * C: enc: reorganize hasher; now Q2-Q3 require exactly 256KiB to avoid global TCMalloc lock * C: enc: fix rare access to uninitialized data in ring-buffer * C: enc: reorganize logging / checks in `write_bits.h` * Java: dec: add "large-window" support * Java: dec: improve speed * Java: dec: debug and 32-bit mode are now activated via system properties * Java: dec: demystify some state variables (use better names) * Dictionary generator: add single input mode * Java: dec: modernize tests * Bazel: js: pick working commit for closure rules | |
|
8544ae85 | 2018-06-09 11:17:13 | Update (#680) * fix MSVC warnings * cleanups | |
|
1e7ea1d8 | 2018-06-04 17:53:16 | Inverse bazel project/workspace tree (#677) * Inverse bazel workspace tree. Now each subproject directly depends on root (c) project. This helps to mitigate Bazel bug bazelbuild/bazel#2391; short summary: Bazel does not work if referenced subproject `WORKSPACE` uses any repositories that embedding project does not. Bright side: building C project is much faster; no need to download closure, go and JDK... | |
|
631fe194 | 2018-03-20 17:37:41 | Update (#651) * fix `bazel` build (ignore switch case fall-through) * add `NPOSTFIX` / `NDIRECT` encoder parameters * fix source file lists (add `params.h`) * fix bug in `durchschlag` * print clarifying messages wheb CLI argument parsing fails | |
|
533843e3 | 2018-03-02 15:49:58 | Update (#643) Update * make the zopflification aware of `NDIRECT`, `NPOSTFIX` (better compression in `font` mode) * add small and simple decoder tool * fix typo * Java: wrapper: make decoder channel more async-friendly Ramp up version to 1.0.3 / 1.0.3 | |
|
35e69fc7 | 2018-02-26 09:04:36 | New feature: "Large Window Brotli" (#640) * New feature: "Large Window Brotli" By setting special encoder/decoder flag it is now possible to extend LZ-window up to 30 bits; though produced stream will not be RFC7932 compliant. Added new dictionary generator - "DSH". It combines speed of "Sieve" and quality of "DM". Plus utilities to prepare train corpora (remove unique strings). Improved compression ratio: now two sub-blocks could be stitched: the last copy command could be extended to span the next sub-block. Fixed compression ineffectiveness caused by floating numbers rounding and wrong cost heuristic. Other C changes: - combined / moved `context.h` to `common` - moved transforms to `common` - unified some aspects of code formatting - added an abstraction for encoder (static) dictionary - moved default allocator/deallocator functions to `common` brotli CLI: - window size is auto-adjusted if not specified explicitly Java: - added "eager" decoding both to JNI wrapper and pure decoder - huge speed-up of `DictionaryData` initialization * Add dictionaryless compressed dictionary * Fix `sources.lst` * Fix `sources.lst` and add a note that `libtool` is also required. * Update setup.py * Fix `EagerStreamTest` * Fix BUILD file * Add missing `libdivsufsort` dependency * Fix "unused parameter" warning. | |
 |
b5033d0e | 2018-02-08 12:48:24 | Fix brotlidump.py crashing when complex prefix code has exactly 1 non-zero code length (#635) According to the format specification regarding complex prefix codes: > If there are at least two non-zero code lengths, any trailing zero > code lengths are omitted, i.e., the last code length in the > sequence must be non-zero. In this case, the sum of (32 >> code > length) over all the non-zero code lengths must equal to 32. > If the lengths have been read for the entire code length alphabet > and there was only one non-zero code length, then the prefix code > has one symbol whose code has zero length. The script does not handle a case where there is just 1 non-zero code length where the sum rule doesn't apply, which causes a StopIteration exception when it attempts to read past the list boundaries. An example of such file is tests/testdata/mapsdatazrh.compressed. I made sure this change doesn't break anything by processing all *.compressed files from the testdata folder with no thrown exceptions. | |
|
0ad94eed | 2017-11-28 15:37:28 | Update (#620) * add autotools build * separate semantic and ABI version * extract sources.lst (used by CMake and Automake) * share pkgconfig templates (used by CMake and Automake) * decoder: always set `total_out` * encoder: fix `BROTLI_ENSURE_CAPACITY` macro (no-op after preprocessor) * decoder/encoder: refine `free_func` contract | |
|
39ef4bbd | 2017-10-13 11:25:03 | Add new (fast) dictionary generator engine. (#616) Add CLI for dictionary generation. Add BUILD file for research folder | |
 |
a0c7dafe | 2017-10-10 11:24:13 | Fix permissions of various files in project (#613) Move from 755 to 644. | |
|
a629289e | 2017-08-28 11:31:29 | Update (#590) * add transpiled JS decoder * make PY wrapper accept memview * fix dictionary generator * speedup compression of RLEish data | |
|
52441069 | 2017-07-21 10:07:24 | Update (#574) * Update * decoder: better behavior after failure * encoder: replace "len_x_code" with delta * research: add experimental dictionary generator * python: test combing | |
|
27d94590 | 2016-12-22 13:03:28 | Research (#491) * add advanced mode for optimal references generator * fix #489 Thanks to Ivan Nikulin for working on it. | |
|
fd96151b | 2016-12-20 18:00:51 | Move brotlidump.py to research/ (#487) | |
|
dd8fa3e8 | 2016-09-22 11:32:23 | Update research * don't use `assert` when side-effect is desired * use `gflags` to pick options from args Other changes: * teach stub `Makefile` to do partial rebuild * remove obsolete `tools/version.h` | |
 |
92940229 | 2016-09-19 19:12:30 | Replace sais.hxx by submodule hillbig/esaxx. | |
|
42919320 | 2016-09-15 17:19:26 | Update research tools description. | |
|
0e52c59a | 2016-09-15 16:59:52 | Update variable naming. | |
|
9589396e | 2016-09-15 11:34:19 | Add description of research tools. | |
|
58cecf17 | 2016-09-15 10:44:19 | Add distance encoding research tools. |