kc3-lang/brotli/c/enc/params.h

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• Hash : 4b2b2d4f
  Author :
  Date : 2019-04-12T13:57:42
  

  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
  

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• c/enc/params.h

• /* Copyright 2017 Google Inc. All Rights Reserved.
  
     Distributed under MIT license.
     See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
  */
  
  /* Parameters for the Brotli encoder with chosen quality levels. */
  
  #ifndef BROTLI_ENC_PARAMS_H_
  #define BROTLI_ENC_PARAMS_H_
  
  #include <brotli/encode.h>
  #include "./encoder_dict.h"
  
  typedef struct BrotliHasherParams {
    int type;
    int bucket_bits;
    int block_bits;
    int hash_len;
    int num_last_distances_to_check;
  } BrotliHasherParams;
  
  typedef struct BrotliDistanceParams {
    uint32_t distance_postfix_bits;
    uint32_t num_direct_distance_codes;
    uint32_t alphabet_size_max;
    uint32_t alphabet_size_limit;
    size_t max_distance;
  } BrotliDistanceParams;
  
  /* Encoding parameters */
  typedef struct BrotliEncoderParams {
    BrotliEncoderMode mode;
    int quality;
    int lgwin;
    int lgblock;
    size_t stream_offset;
    size_t size_hint;
    BROTLI_BOOL disable_literal_context_modeling;
    BROTLI_BOOL large_window;
    BrotliHasherParams hasher;
    BrotliDistanceParams dist;
    BrotliEncoderDictionary dictionary;
  } BrotliEncoderParams;
  
  #endif  /* BROTLI_ENC_PARAMS_H_ */
  

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