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Sync libwebp sources with https://chromium.googlesource.com/webm/libwebp/+/v1.0.0

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JustOff 2018-06-29 20:57:44 +03:00 • committed by Roy Tam
commit 57e9b57974
86 changed files with 3796 additions and 2250 deletions
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40
media/libwebp/enc/vp8i_enc.h
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@ -11,8 +11,8 @@
//
// Author: Skal (pascal.massimino@gmail.com)
#ifndef WEBP_ENC_VP8ENCI_H_
#define WEBP_ENC_VP8ENCI_H_
#ifndef WEBP_ENC_VP8I_ENC_H_
#define WEBP_ENC_VP8I_ENC_H_
#include <string.h> // for memcpy()
#include "../dec/common_dec.h"
@ -30,8 +30,8 @@ extern "C" {
// Various defines and enums
// version numbers
#define ENC_MAJ_VERSION 0
#define ENC_MIN_VERSION 6
#define ENC_MAJ_VERSION 1
#define ENC_MIN_VERSION 0
#define ENC_REV_VERSION 0
enum { MAX_LF_LEVELS = 64, // Maximum loop filter level
@ -75,10 +75,10 @@ typedef enum { // Rate-distortion optimization levels
#define U_OFF_ENC (16)
#define V_OFF_ENC (16 + 8)
extern const int VP8Scan[16]; // in quant.c
extern const int VP8UVModeOffsets[4]; // in analyze.c
extern const int VP8I16ModeOffsets[4];
extern const int VP8I4ModeOffsets[NUM_BMODES];
extern const uint16_t VP8Scan[16];
extern const uint16_t VP8UVModeOffsets[4];
extern const uint16_t VP8I16ModeOffsets[4];
extern const uint16_t VP8I4ModeOffsets[NUM_BMODES];
// Layout of prediction blocks
// intra 16x16
@ -120,6 +120,9 @@ static WEBP_INLINE int QUANTDIV(uint32_t n, uint32_t iQ, uint32_t B) {
// Uncomment the following to remove token-buffer code:
// #define DISABLE_TOKEN_BUFFER
// quality below which error-diffusion is enabled
#define ERROR_DIFFUSION_QUALITY 98
//------------------------------------------------------------------------------
// Headers
@ -201,6 +204,8 @@ typedef struct {
score_t i4_penalty_; // penalty for using Intra4
} VP8SegmentInfo;
typedef int8_t DError[2 /* u/v */][2 /* top or left */];
// Handy transient struct to accumulate score and info during RD-optimization
// and mode evaluation.
typedef struct {
@ -213,6 +218,7 @@ typedef struct {
uint8_t modes_i4[16]; // mode numbers for intra4 predictions
int mode_uv; // mode number of chroma prediction
uint32_t nz; // non-zero blocks
int8_t derr[2][3]; // DC diffusion errors for U/V for blocks #1/2/3
} VP8ModeScore;
// Iterator structure to iterate through macroblocks, pointing to the
@ -242,6 +248,9 @@ typedef struct {
int count_down0_; // starting counter value (for progress)
int percent0_; // saved initial progress percent
DError left_derr_; // left error diffusion (u/v)
DError *top_derr_; // top diffusion error - NULL if disabled
uint8_t* y_left_; // left luma samples (addressable from index -1 to 15).
uint8_t* u_left_; // left u samples (addressable from index -1 to 7)
uint8_t* v_left_; // left v samples (addressable from index -1 to 7)
@ -330,9 +339,6 @@ int VP8RecordCoeffTokens(int ctx, const struct VP8Residual* const res,
// Estimate the final coded size given a set of 'probas'.
size_t VP8EstimateTokenSize(VP8TBuffer* const b, const uint8_t* const probas);
// unused for now
void VP8TokenToStats(const VP8TBuffer* const b, proba_t* const stats);
#endif // !DISABLE_TOKEN_BUFFER
//------------------------------------------------------------------------------
@ -404,6 +410,7 @@ struct VP8Encoder {
uint8_t* uv_top_; // top u/v samples.
// U and V are packed into 16 bytes (8 U + 8 V)
LFStats* lf_stats_; // autofilter stats (if NULL, autofilter is off)
DError* top_derr_; // diffusion error (NULL if disabled)
};
//------------------------------------------------------------------------------
@ -502,19 +509,10 @@ int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height);
// compressibility (no guarantee, though). Assumes that pic->use_argb is true.
void WebPCleanupTransparentAreaLossless(WebPPicture* const pic);
// in near_lossless.c
// Near lossless preprocessing in RGB color-space.
int VP8ApplyNearLossless(int xsize, int ysize, uint32_t* argb, int quality);
// Near lossless adjustment for predictors.
void VP8ApplyNearLosslessPredict(int xsize, int ysize, int pred_bits,
const uint32_t* argb_orig,
uint32_t* argb, uint32_t* argb_scratch,
const uint32_t* const transform_data,
int quality, int subtract_green);
//------------------------------------------------------------------------------
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* WEBP_ENC_VP8ENCI_H_ */
#endif /* WEBP_ENC_VP8I_ENC_H_ */