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Diffstat (limited to 'modules/brotli/enc/literal_cost.h')
| -rw-r--r-- | modules/brotli/enc/literal_cost.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/modules/brotli/enc/literal_cost.h b/modules/brotli/enc/literal_cost.h new file mode 100644 index 000000000..8f53f39d3 --- /dev/null +++ b/modules/brotli/enc/literal_cost.h @@ -0,0 +1,30 @@ +/* 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 "../common/platform.h" +#include <brotli/types.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, float* cost); + +#if defined(__cplusplus) || defined(c_plusplus) +} /* extern "C" */ +#endif + +#endif /* BROTLI_ENC_LITERAL_COST_H_ */ |