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-rw-r--r--src/main/jni/libwebp/enc/cost.h83
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diff --git a/src/main/jni/libwebp/enc/cost.h b/src/main/jni/libwebp/enc/cost.h
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-// Copyright 2011 Google Inc. All Rights Reserved.
-//
-// Use of this source code is governed by a BSD-style license
-// that can be found in the COPYING file in the root of the source
-// tree. An additional intellectual property rights grant can be found
-// in the file PATENTS. All contributing project authors may
-// be found in the AUTHORS file in the root of the source tree.
-// -----------------------------------------------------------------------------
-//
-// Cost tables for level and modes.
-//
-// Author: Skal (pascal.massimino@gmail.com)
-
-#ifndef WEBP_ENC_COST_H_
-#define WEBP_ENC_COST_H_
-
-#include <assert.h>
-#include <stdlib.h>
-#include "./vp8enci.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// On-the-fly info about the current set of residuals. Handy to avoid
-// passing zillions of params.
-typedef struct {
- int first;
- int last;
- const int16_t* coeffs;
-
- int coeff_type;
- ProbaArray* prob;
- StatsArray* stats;
- CostArray* cost;
-} VP8Residual;
-
-void VP8InitResidual(int first, int coeff_type,
- VP8Encoder* const enc, VP8Residual* const res);
-
-typedef void (*VP8SetResidualCoeffsFunc)(const int16_t* const coeffs,
- VP8Residual* const res);
-extern VP8SetResidualCoeffsFunc VP8SetResidualCoeffs;
-
-void VP8SetResidualCoeffsInit(void); // must be called first
-
-int VP8RecordCoeffs(int ctx, const VP8Residual* const res);
-
-// approximate cost per level:
-extern const uint16_t VP8LevelFixedCosts[MAX_LEVEL + 1];
-extern const uint16_t VP8EntropyCost[256]; // 8bit fixed-point log(p)
-
-// Cost of coding one event with probability 'proba'.
-static WEBP_INLINE int VP8BitCost(int bit, uint8_t proba) {
- return !bit ? VP8EntropyCost[proba] : VP8EntropyCost[255 - proba];
-}
-
-// Cost calculation function.
-typedef int (*VP8GetResidualCostFunc)(int ctx0, const VP8Residual* const res);
-extern VP8GetResidualCostFunc VP8GetResidualCost;
-
-void VP8GetResidualCostInit(void); // must be called first
-
-// Level cost calculations
-extern const uint16_t VP8LevelCodes[MAX_VARIABLE_LEVEL][2];
-void VP8CalculateLevelCosts(VP8Proba* const proba);
-static WEBP_INLINE int VP8LevelCost(const uint16_t* const table, int level) {
- return VP8LevelFixedCosts[level]
- + table[(level > MAX_VARIABLE_LEVEL) ? MAX_VARIABLE_LEVEL : level];
-}
-
-// Mode costs
-extern const uint16_t VP8FixedCostsUV[4];
-extern const uint16_t VP8FixedCostsI16[4];
-extern const uint16_t VP8FixedCostsI4[NUM_BMODES][NUM_BMODES][NUM_BMODES];
-
-//------------------------------------------------------------------------------
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-#endif /* WEBP_ENC_COST_H_ */