| /* Copyright 2013 Google Inc. All Rights Reserved. |
| |
| Distributed under MIT license. |
| See file LICENSE for detail or copy at https://opensource.org/licenses/MIT |
| */ |
| |
| /* Functions to estimate the bit cost of Huffman trees. */ |
| |
| #ifndef BROTLI_ENC_BIT_COST_H_ |
| #define BROTLI_ENC_BIT_COST_H_ |
| |
| #include "../common/platform.h" |
| #include "histogram.h" |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| BROTLI_INTERNAL double BrotliBitsEntropy( |
| const uint32_t* population, size_t size); |
| BROTLI_INTERNAL double BrotliPopulationCostLiteral( |
| const HistogramLiteral* histogram); |
| BROTLI_INTERNAL double BrotliPopulationCostCommand( |
| const HistogramCommand* histogram); |
| BROTLI_INTERNAL double BrotliPopulationCostDistance( |
| const HistogramDistance* histogram); |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } /* extern "C" */ |
| #endif |
| |
| #endif /* BROTLI_ENC_BIT_COST_H_ */ |
