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25 lines
750 B
C++
25 lines
750 B
C++
/* Copyright 2013 Google Inc. All Rights Reserved.
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Distributed under MIT license.
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See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
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*/
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// Literal cost model to allow backward reference replacement to be efficient.
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#ifndef BROTLI_ENC_LITERAL_COST_H_
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#define BROTLI_ENC_LITERAL_COST_H_
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#include "./types.h"
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namespace brotli {
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// Estimates how many bits the literals in the interval [pos, pos + len) in the
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// ringbuffer (data, mask) will take entropy coded and writes these estimates
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// to the cost[0..len) array.
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void EstimateBitCostsForLiterals(size_t pos, size_t len, size_t mask,
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const uint8_t *data, float *cost);
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} // namespace brotli
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#endif // BROTLI_ENC_LITERAL_COST_H_
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