diff options
Diffstat (limited to 'drivers/webp/enc/cost.h')
| -rw-r--r-- | drivers/webp/enc/cost.h | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/webp/enc/cost.h b/drivers/webp/enc/cost.h index 09b75b699d..20960d6d74 100644 --- a/drivers/webp/enc/cost.h +++ b/drivers/webp/enc/cost.h @@ -1,8 +1,10 @@ // Copyright 2011 Google Inc. All Rights Reserved. // -// This code is licensed under the same terms as WebM: -// Software License Agreement: http://www.webmproject.org/license/software/ -// Additional IP Rights Grant: http://www.webmproject.org/license/additional/ +// 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. @@ -12,14 +14,32 @@ #ifndef WEBP_ENC_COST_H_ #define WEBP_ENC_COST_H_ +#include <assert.h> +#include <stdlib.h> #include "./vp8enci.h" -#if defined(__cplusplus) || defined(c_plusplus) +#ifdef __cplusplus extern "C" { #endif -extern const uint16_t VP8LevelFixedCosts[2048]; // approximate cost per level -extern const uint16_t VP8EntropyCost[256]; // 8bit fixed-point log(p) +// On-the-fly info about the current set of residuals. Handy to avoid +// passing zillions of params. +typedef struct VP8Residual VP8Residual; +struct VP8Residual { + int first; + int last; + const int16_t* coeffs; + + int coeff_type; + ProbaArray* prob; + StatsArray* stats; + CostArrayPtr costs; +}; + +void VP8InitResidual(int first, int coeff_type, + VP8Encoder* const enc, VP8Residual* const res); + +int VP8RecordCoeffs(int ctx, const VP8Residual* const res); // Cost of coding one event with probability 'proba'. static WEBP_INLINE int VP8BitCost(int bit, uint8_t proba) { @@ -28,7 +48,7 @@ static WEBP_INLINE int VP8BitCost(int bit, uint8_t proba) { // Level cost calculations extern const uint16_t VP8LevelCodes[MAX_VARIABLE_LEVEL][2]; -void VP8CalculateLevelCosts(VP8Proba* const proba); +void VP8CalculateLevelCosts(VP8EncProba* 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]; @@ -41,7 +61,7 @@ extern const uint16_t VP8FixedCostsI4[NUM_BMODES][NUM_BMODES][NUM_BMODES]; //------------------------------------------------------------------------------ -#if defined(__cplusplus) || defined(c_plusplus) +#ifdef __cplusplus } // extern "C" #endif |