1 /* Copyright 2017 Google Inc. All Rights Reserved. 2 3 Distributed under MIT license. 4 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 5 */ 6 7 /* Parameters for the Brotli encoder with chosen quality levels. */ 8 9 #ifndef BROTLI_ENC_PARAMS_H_ 10 #define BROTLI_ENC_PARAMS_H_ 11 12 #include <brotli/encode.h> 13 #include "encoder_dict.h" 14 15 typedef struct BrotliHasherParams { 16 int type; 17 int bucket_bits; 18 int block_bits; 19 int hash_len; 20 int num_last_distances_to_check; 21 } BrotliHasherParams; 22 23 typedef struct BrotliDistanceParams { 24 uint32_t distance_postfix_bits; 25 uint32_t num_direct_distance_codes; 26 uint32_t alphabet_size_max; 27 uint32_t alphabet_size_limit; 28 size_t max_distance; 29 } BrotliDistanceParams; 30 31 /* Encoding parameters */ 32 typedef struct BrotliEncoderParams { 33 BrotliEncoderMode mode; 34 int quality; 35 int lgwin; 36 int lgblock; 37 size_t stream_offset; 38 size_t size_hint; 39 BROTLI_BOOL disable_literal_context_modeling; 40 BROTLI_BOOL large_window; 41 BrotliHasherParams hasher; 42 BrotliDistanceParams dist; 43 /* TODO(eustas): rename to BrotliShared... */ 44 SharedEncoderDictionary dictionary; 45 } BrotliEncoderParams; 46 47 #endif /* BROTLI_ENC_PARAMS_H_ */ 48