diff options
Diffstat (limited to 'media/libwebp/enc/vp8i_enc.h')
| -rw-r--r-- | media/libwebp/enc/vp8i_enc.h | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/media/libwebp/enc/vp8i_enc.h b/media/libwebp/enc/vp8i_enc.h index 93c95ecbf..8972d9f10 100644 --- a/media/libwebp/enc/vp8i_enc.h +++ b/media/libwebp/enc/vp8i_enc.h @@ -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_ */ |