32 lines
896 B
C
32 lines
896 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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/* Functions to estimate the bit cost of Huffman trees. */
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#ifndef BROTLI_ENC_BIT_COST_H_
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#define BROTLI_ENC_BIT_COST_H_
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#include "../common/platform.h"
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#include "histogram.h"
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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BROTLI_INTERNAL double BrotliBitsEntropy(
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const uint32_t* population, size_t size);
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BROTLI_INTERNAL double BrotliPopulationCostLiteral(
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const HistogramLiteral* histogram);
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BROTLI_INTERNAL double BrotliPopulationCostCommand(
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const HistogramCommand* histogram);
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BROTLI_INTERNAL double BrotliPopulationCostDistance(
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const HistogramDistance* histogram);
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#if defined(__cplusplus) || defined(c_plusplus)
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} /* extern "C" */
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#endif
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#endif /* BROTLI_ENC_BIT_COST_H_ */
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