third_party/libwebp/enc/vp8enci.h - Issue 1546003002: libwebp: update to 0.5.0

Unified Diff: third_party/libwebp/enc/vp8enci.h

Issue 1546003002: libwebp: update to 0.5.0 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: 'defines' exists Created 5 years ago

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Index: third_party/libwebp/enc/vp8enci.h

diff --git a/third_party/libwebp/enc/vp8enci.h b/third_party/libwebp/enc/vp8enci.h

index 20f58c652f9ffd8c868999489b9ec295d87c0137..b2cc8d196ffdd80eabaa85645c655500b7487b10 100644

--- a/third_party/libwebp/enc/vp8enci.h

+++ b/third_party/libwebp/enc/vp8enci.h

@@ -15,10 +15,16 @@

#define WEBP_ENC_VP8ENCI_H_

#include <string.h> // for memcpy()

-#include "../webp/encode.h"

+#include "../dec/common.h"

#include "../dsp/dsp.h"

#include "../utils/bit_writer.h"

#include "../utils/thread.h"

+#include "../utils/utils.h"

+#include "../webp/encode.h"

+#ifdef WEBP_EXPERIMENTAL_FEATURES

+#include "./vp8li.h"

+#endif // WEBP_EXPERIMENTAL_FEATURES

#ifdef __cplusplus

extern "C" {

@@ -29,35 +35,10 @@ extern "C" {

// version numbers

#define ENC_MAJ_VERSION 0

-#define ENC_MIN_VERSION 4

-#define ENC_REV_VERSION 4

-// intra prediction modes

-enum { B_DC_PRED = 0, // 4x4 modes

- B_TM_PRED = 1,

- B_VE_PRED = 2,

- B_HE_PRED = 3,

- B_RD_PRED = 4,

- B_VR_PRED = 5,

- B_LD_PRED = 6,

- B_VL_PRED = 7,

- B_HD_PRED = 8,

- B_HU_PRED = 9,

- NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED, // = 10

- // Luma16 or UV modes

- DC_PRED = B_DC_PRED, V_PRED = B_VE_PRED,

- H_PRED = B_HE_PRED, TM_PRED = B_TM_PRED,

- NUM_PRED_MODES = 4

- };

+#define ENC_MIN_VERSION 5

+#define ENC_REV_VERSION 0

-enum { NUM_MB_SEGMENTS = 4,

- MAX_NUM_PARTITIONS = 8,

- NUM_TYPES = 4, // 0: i16-AC, 1: i16-DC, 2:chroma-AC, 3:i4-AC

- NUM_BANDS = 8,

- NUM_CTX = 3,

- NUM_PROBAS = 11,

- MAX_LF_LEVELS = 64, // Maximum loop filter level

+enum { MAX_LF_LEVELS = 64, // Maximum loop filter level

MAX_VARIABLE_LEVEL = 67, // last (inclusive) level with variable cost

MAX_LEVEL = 2047 // max level (note: max codable is 2047 + 67)

};

@@ -69,66 +50,34 @@ typedef enum { // Rate-distortion optimization levels

RD_OPT_TRELLIS_ALL = 3 // trellis-quant for every scoring (much slower)

} VP8RDLevel;

-// YUV-cache parameters. Cache is 16-pixels wide.

-// The original or reconstructed samples can be accessed using VP8Scan[]

+// YUV-cache parameters. Cache is 32-bytes wide (= one cacheline).

+// The original or reconstructed samples can be accessed using VP8Scan[].

// The predicted blocks can be accessed using offsets to yuv_p_ and

-// the arrays VP8*ModeOffsets[];

-// +----+ YUV Samples area. See VP8Scan[] for accessing the blocks.

-// Y_OFF |YYYY| <- original samples ('yuv_in_')

-// |YYYY|

-// U_OFF |UUVV| V_OFF (=U_OFF + 8)

-// |UUVV|

-// +----+

-// Y_OFF |YYYY| <- compressed/decoded samples ('yuv_out_')

-// |YYYY| There are two buffers like this ('yuv_out_'/'yuv_out2_')

-// |YYYY|

-// U_OFF |UUVV| V_OFF

-// |UUVV|

-// x2 (for yuv_out2_)

-// +----+ Prediction area ('yuv_p_', size = PRED_SIZE)

-// I16DC16 |YYYY| Intra16 predictions (16x16 block each)

-// |YYYY|

-// I16TM16 |YYYY|

-// |YYYY|

-// I16VE16 |YYYY|

-// |YYYY|

-// I16HE16 |YYYY|

-// |YYYY|

-// +----+ Chroma U/V predictions (16x8 block each)

-// C8DC8 |UUVV|

-// |UUVV|

-// C8TM8 |UUVV|

-// |UUVV|

-// C8VE8 |UUVV|

-// |UUVV|

-// C8HE8 |UUVV|

-// |UUVV|

-// +----+ Intra 4x4 predictions (4x4 block each)

-// |YYYY| I4DC4 I4TM4 I4VE4 I4HE4

-// |YYYY| I4RD4 I4VR4 I4LD4 I4VL4

-// |YY..| I4HD4 I4HU4 I4TMP

-// +----+

-#define BPS 16 // this is the common stride

-#define Y_SIZE (BPS * 16)

-#define UV_SIZE (BPS * 8)

-#define YUV_SIZE (Y_SIZE + UV_SIZE)

-#define PRED_SIZE (6 * 16 * BPS + 12 * BPS)

-#define Y_OFF (0)

-#define U_OFF (Y_SIZE)

-#define V_OFF (U_OFF + 8)

-#define ALIGN_CST 15

-#define DO_ALIGN(PTR) ((uintptr_t)((PTR) + ALIGN_CST) & ~ALIGN_CST)

+// the arrays VP8*ModeOffsets[].

+// * YUV Samples area (yuv_in_/yuv_out_/yuv_out2_)

+// (see VP8Scan[] for accessing the blocks, along with

+// Y_OFF_ENC/U_OFF_ENC/V_OFF_ENC):

+// +----+----+

+// Y_OFF_ENC |YYYY|UUVV|

+// U_OFF_ENC |YYYY|UUVV|

+// V_OFF_ENC |YYYY|....| <- 25% wasted U/V area

+// |YYYY|....|

+// +----+----+

+// * Prediction area ('yuv_p_', size = PRED_SIZE_ENC)

+// Intra16 predictions (16x16 block each, two per row):

+// |I16DC16|I16TM16|

+// |I16VE16|I16HE16|

+// Chroma U/V predictions (16x8 block each, two per row):

+// |C8DC8|C8TM8|

+// |C8VE8|C8HE8|

+// Intra 4x4 predictions (4x4 block each)

+// |I4DC4 I4TM4 I4VE4 I4HE4|I4RD4 I4VR4 I4LD4 I4VL4|

+// |I4HD4 I4HU4 I4TMP .....|.......................| <- ~31% wasted

+#define YUV_SIZE_ENC (BPS * 16)

+#define PRED_SIZE_ENC (32 * BPS + 16 * BPS + 8 * BPS) // I16+Chroma+I4 preds

+#define Y_OFF_ENC (0)

+#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

@@ -138,26 +87,26 @@ extern const int VP8I4ModeOffsets[NUM_BMODES];

// Layout of prediction blocks

// intra 16x16

#define I16DC16 (0 * 16 * BPS)

-#define I16TM16 (1 * 16 * BPS)

-#define I16VE16 (2 * 16 * BPS)

-#define I16HE16 (3 * 16 * BPS)

+#define I16TM16 (I16DC16 + 16)

+#define I16VE16 (1 * 16 * BPS)

+#define I16HE16 (I16VE16 + 16)

// chroma 8x8, two U/V blocks side by side (hence: 16x8 each)

-#define C8DC8 (4 * 16 * BPS)

-#define C8TM8 (4 * 16 * BPS + 8 * BPS)

-#define C8VE8 (5 * 16 * BPS)

-#define C8HE8 (5 * 16 * BPS + 8 * BPS)

+#define C8DC8 (2 * 16 * BPS)

+#define C8TM8 (C8DC8 + 1 * 16)

+#define C8VE8 (2 * 16 * BPS + 8 * BPS)

+#define C8HE8 (C8VE8 + 1 * 16)

// intra 4x4

-#define I4DC4 (6 * 16 * BPS + 0)

-#define I4TM4 (6 * 16 * BPS + 4)

-#define I4VE4 (6 * 16 * BPS + 8)

-#define I4HE4 (6 * 16 * BPS + 12)

-#define I4RD4 (6 * 16 * BPS + 4 * BPS + 0)

-#define I4VR4 (6 * 16 * BPS + 4 * BPS + 4)

-#define I4LD4 (6 * 16 * BPS + 4 * BPS + 8)

-#define I4VL4 (6 * 16 * BPS + 4 * BPS + 12)

-#define I4HD4 (6 * 16 * BPS + 8 * BPS + 0)

-#define I4HU4 (6 * 16 * BPS + 8 * BPS + 4)

-#define I4TMP (6 * 16 * BPS + 8 * BPS + 8)

+#define I4DC4 (3 * 16 * BPS + 0)

+#define I4TM4 (I4DC4 + 4)

+#define I4VE4 (I4DC4 + 8)

+#define I4HE4 (I4DC4 + 12)

+#define I4RD4 (I4DC4 + 16)

+#define I4VR4 (I4DC4 + 20)

+#define I4LD4 (I4DC4 + 24)

+#define I4VL4 (I4DC4 + 28)

+#define I4HD4 (3 * 16 * BPS + 4 * BPS)

+#define I4HU4 (I4HD4 + 4)

+#define I4TMP (I4HD4 + 8)

typedef int64_t score_t; // type used for scores, rate, distortion

// Note that MAX_COST is not the maximum allowed by sizeof(score_t),

@@ -172,14 +121,6 @@ static WEBP_INLINE int QUANTDIV(uint32_t n, uint32_t iQ, uint32_t B) {

return (int)((n * iQ + B) >> QFIX);

}

-// size of histogram used by CollectHistogram.

-#define MAX_COEFF_THRESH 31

-typedef struct VP8Histogram VP8Histogram;

-struct VP8Histogram {

- // TODO(skal): we only need to store the max_value and last_non_zero actually.

- int distribution[MAX_COEFF_THRESH + 1];

-};

// Uncomment the following to remove token-buffer code:

// #define DISABLE_TOKEN_BUFFER

@@ -190,6 +131,8 @@ typedef uint32_t proba_t; // 16b + 16b

typedef uint8_t ProbaArray[NUM_CTX][NUM_PROBAS];

typedef proba_t StatsArray[NUM_CTX][NUM_PROBAS];

typedef uint16_t CostArray[NUM_CTX][MAX_VARIABLE_LEVEL + 1];

+typedef const uint16_t* (*CostArrayPtr)[NUM_CTX]; // for easy casting

+typedef const uint16_t* CostArrayMap[16][NUM_CTX];

typedef double LFStats[NUM_MB_SEGMENTS][MAX_LF_LEVELS]; // filter stats

typedef struct VP8Encoder VP8Encoder;

@@ -200,7 +143,7 @@ typedef struct {

int update_map_; // whether to update the segment map or not.

// must be 0 if there's only 1 segment.

int size_; // bit-cost for transmitting the segment map

-} VP8SegmentHeader;

+} VP8EncSegmentHeader;

// Struct collecting all frame-persistent probabilities.

typedef struct {

@@ -209,10 +152,11 @@ typedef struct {

ProbaArray coeffs_[NUM_TYPES][NUM_BANDS]; // 1056 bytes

StatsArray stats_[NUM_TYPES][NUM_BANDS]; // 4224 bytes

CostArray level_cost_[NUM_TYPES][NUM_BANDS]; // 13056 bytes

+ CostArrayMap remapped_costs_[NUM_TYPES]; // 1536 bytes

int dirty_; // if true, need to call VP8CalculateLevelCosts()

int use_skip_proba_; // Note: we always use skip_proba for now.

int nb_skip_; // number of skipped blocks

-} VP8Proba;

+} VP8EncProba;

// Filter parameters. Not actually used in the code (we don't perform

// the in-loop filtering), but filled from user's config

@@ -221,7 +165,7 @@ typedef struct {

int level_; // base filter level [0..63]

int sharpness_; // [0..7]

int i4x4_lf_delta_; // delta filter level for i4x4 relative to i16x16

-} VP8FilterHeader;

+} VP8EncFilterHeader;

//------------------------------------------------------------------------------

// Informations about the macroblocks.

@@ -307,9 +251,10 @@ typedef struct {

uint8_t* y_top_; // top luma samples at position 'x_'

uint8_t* uv_top_; // top u/v samples at position 'x_', packed as 16 bytes

- // memory for storing y/u/v_left_ and yuv_in_/out_*

- uint8_t yuv_left_mem_[17 + 16 + 16 + 8 + ALIGN_CST]; // memory for *_left_

- uint8_t yuv_mem_[3 * YUV_SIZE + PRED_SIZE + ALIGN_CST]; // memory for yuv_*

+ // memory for storing y/u/v_left_

+ uint8_t yuv_left_mem_[17 + 16 + 16 + 8 + WEBP_ALIGN_CST];

+ // memory for yuv_*

+ uint8_t yuv_mem_[3 * YUV_SIZE_ENC + PRED_SIZE_ENC + WEBP_ALIGN_CST];

} VP8EncIterator;

// in iterator.c

@@ -381,7 +326,8 @@ int VP8EmitTokens(VP8TBuffer* const b, VP8BitWriter* const bw,

const uint8_t* const probas, int final_pass);

// record the coding of coefficients without knowing the probabilities yet

-int VP8RecordCoeffTokens(int ctx, int coeff_type, int first, int last,

+int VP8RecordCoeffTokens(const int ctx, const int coeff_type,

+ int first, int last,

const int16_t* const coeffs,

VP8TBuffer* const tokens);

@@ -401,8 +347,8 @@ struct VP8Encoder {

WebPPicture* pic_; // input / output picture

// headers

- VP8FilterHeader filter_hdr_; // filtering information

- VP8SegmentHeader segment_hdr_; // segment information

+ VP8EncFilterHeader filter_hdr_; // filtering information

+ VP8EncSegmentHeader segment_hdr_; // segment information

int profile_; // VP8's profile, deduced from Config.

@@ -438,12 +384,12 @@ struct VP8Encoder {

int dq_uv_dc_, dq_uv_ac_;

// probabilities and statistics

- VP8Proba proba_;

- uint64_t sse_[4]; // sum of Y/U/V/A squared errors for all macroblocks

- uint64_t sse_count_; // pixel count for the sse_[] stats

- int coded_size_;

- int residual_bytes_[3][4];

- int block_count_[3];

+ VP8EncProba proba_;

+ uint64_t sse_[4]; // sum of Y/U/V/A squared errors for all macroblocks

+ uint64_t sse_count_; // pixel count for the sse_[] stats

+ int coded_size_;

+ int residual_bytes_[3][4];

+ int block_count_[3];

// quality/speed settings

int method_; // 0=fastest, 6=best/slowest.

@@ -473,7 +419,7 @@ extern const uint8_t

// Reset the token probabilities to their initial (default) values

void VP8DefaultProbas(VP8Encoder* const enc);

// Write the token probabilities

-void VP8WriteProbas(VP8BitWriter* const bw, const VP8Proba* const probas);

+void VP8WriteProbas(VP8BitWriter* const bw, const VP8EncProba* const probas);

// Writes the partition #0 modes (that is: all intra modes)

void VP8CodeIntraModes(VP8Encoder* const enc);

@@ -486,7 +432,6 @@ int VP8EncWrite(VP8Encoder* const enc);

void VP8EncFreeBitWriters(VP8Encoder* const enc);

// in frame.c

-extern const uint8_t VP8EncBands[16 + 1];

extern const uint8_t VP8Cat3[];

extern const uint8_t VP8Cat4[];

extern const uint8_t VP8Cat5[];

@@ -569,12 +514,21 @@ int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height);

// Returns false in case of error (invalid param, out-of-memory).

int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height);

+// Clean-up the RGB samples under fully transparent area, to help lossless

+// 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);

//------------------------------------------------------------------------------

-#if WEBP_ENCODER_ABI_VERSION <= 0x0203

-void WebPMemoryWriterClear(WebPMemoryWriter* writer);

-#endif

#ifdef __cplusplus

} // extern "C"

#endif

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