brotli/c/enc/literal_cost.h
Evgenii Kliuchnikov a8f5813b84 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)
2022-11-17 13:03:09 +00:00

33 lines
916 B
C

/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/* Literal cost model to allow backward reference replacement to be efficient.
*/
#ifndef BROTLI_ENC_LITERAL_COST_H_
#define BROTLI_ENC_LITERAL_COST_H_
#include <brotli/types.h>
#include "../common/platform.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/* Estimates how many bits the literals in the interval [pos, pos + len) in the
ring-buffer (data, mask) will take entropy coded and writes these estimates
to the cost[0..len) array. */
BROTLI_INTERNAL void BrotliEstimateBitCostsForLiterals(
size_t pos, size_t len, size_t mask, const uint8_t* data, size_t* histogram,
float* cost);
#if defined(__cplusplus) || defined(c_plusplus)
} /* extern "C" */
#endif
#endif /* BROTLI_ENC_LITERAL_COST_H_ */