diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/enc/cost.h')
-rw-r--r-- | src/3rdparty/libwebp/src/enc/cost.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/3rdparty/libwebp/src/enc/cost.h b/src/3rdparty/libwebp/src/enc/cost.h index 3cbad1a..4e55895 100644 --- a/src/3rdparty/libwebp/src/enc/cost.h +++ b/src/3rdparty/libwebp/src/enc/cost.h @@ -14,12 +14,38 @@ #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) @@ -29,6 +55,12 @@ 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); |