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Side by Side Diff: third_party/libwebp/enc/vp8enci.h

Issue 653803003: libwebp: update to 0.4.2-rc2 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 2 months ago
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1 // Copyright 2011 Google Inc. All Rights Reserved. 1 // Copyright 2011 Google Inc. All Rights Reserved.
2 // 2 //
3 // Use of this source code is governed by a BSD-style license 3 // Use of this source code is governed by a BSD-style license
4 // that can be found in the COPYING file in the root of the source 4 // that can be found in the COPYING file in the root of the source
5 // tree. An additional intellectual property rights grant can be found 5 // tree. An additional intellectual property rights grant can be found
6 // in the file PATENTS. All contributing project authors may 6 // in the file PATENTS. All contributing project authors may
7 // be found in the AUTHORS file in the root of the source tree. 7 // be found in the AUTHORS file in the root of the source tree.
8 // ----------------------------------------------------------------------------- 8 // -----------------------------------------------------------------------------
9 // 9 //
10 // WebP encoder: internal header. 10 // WebP encoder: internal header.
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23 #ifdef __cplusplus 23 #ifdef __cplusplus
24 extern "C" { 24 extern "C" {
25 #endif 25 #endif
26 26
27 //------------------------------------------------------------------------------ 27 //------------------------------------------------------------------------------
28 // Various defines and enums 28 // Various defines and enums
29 29
30 // version numbers 30 // version numbers
31 #define ENC_MAJ_VERSION 0 31 #define ENC_MAJ_VERSION 0
32 #define ENC_MIN_VERSION 4 32 #define ENC_MIN_VERSION 4
33 #define ENC_REV_VERSION 1 33 #define ENC_REV_VERSION 2
34 34
35 // intra prediction modes 35 // intra prediction modes
36 enum { B_DC_PRED = 0, // 4x4 modes 36 enum { B_DC_PRED = 0, // 4x4 modes
37 B_TM_PRED = 1, 37 B_TM_PRED = 1,
38 B_VE_PRED = 2, 38 B_VE_PRED = 2,
39 B_HE_PRED = 3, 39 B_HE_PRED = 3,
40 B_RD_PRED = 4, 40 B_RD_PRED = 4,
41 B_VR_PRED = 5, 41 B_VR_PRED = 5,
42 B_LD_PRED = 6, 42 B_LD_PRED = 6,
43 B_VL_PRED = 7, 43 B_VL_PRED = 7,
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450 VP8RDLevel rd_opt_level_; // Deduced from method_. 450 VP8RDLevel rd_opt_level_; // Deduced from method_.
451 int max_i4_header_bits_; // partition #0 safeness factor 451 int max_i4_header_bits_; // partition #0 safeness factor
452 int thread_level_; // derived from config->thread_level 452 int thread_level_; // derived from config->thread_level
453 int do_search_; // derived from config->target_XXX 453 int do_search_; // derived from config->target_XXX
454 int use_tokens_; // if true, use token buffer 454 int use_tokens_; // if true, use token buffer
455 455
456 // Memory 456 // Memory
457 VP8MBInfo* mb_info_; // contextual macroblock infos (mb_w_ + 1) 457 VP8MBInfo* mb_info_; // contextual macroblock infos (mb_w_ + 1)
458 uint8_t* preds_; // predictions modes: (4*mb_w+1) * (4*mb_h+1) 458 uint8_t* preds_; // predictions modes: (4*mb_w+1) * (4*mb_h+1)
459 uint32_t* nz_; // non-zero bit context: mb_w+1 459 uint32_t* nz_; // non-zero bit context: mb_w+1
460 uint8_t *y_top_; // top luma samples. 460 uint8_t* y_top_; // top luma samples.
461 uint8_t *uv_top_; // top u/v samples. 461 uint8_t* uv_top_; // top u/v samples.
462 // U and V are packed into 16 bytes (8 U + 8 V) 462 // U and V are packed into 16 bytes (8 U + 8 V)
463 LFStats *lf_stats_; // autofilter stats (if NULL, autofilter is off) 463 LFStats* lf_stats_; // autofilter stats (if NULL, autofilter is off)
464 }; 464 };
465 465
466 //------------------------------------------------------------------------------ 466 //------------------------------------------------------------------------------
467 // internal functions. Not public. 467 // internal functions. Not public.
468 468
469 // in tree.c 469 // in tree.c
470 extern const uint8_t VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS]; 470 extern const uint8_t VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS];
471 extern const uint8_t 471 extern const uint8_t
472 VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS]; 472 VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS];
473 // Reset the token probabilities to their initial (default) values 473 // Reset the token probabilities to their initial (default) values
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564 int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height); 564 int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height);
565 565
566 // Allocates YUVA buffer of given dimension (previous one is always free'd). 566 // Allocates YUVA buffer of given dimension (previous one is always free'd).
567 // Uses picture->csp to determine whether an alpha buffer is needed. 567 // Uses picture->csp to determine whether an alpha buffer is needed.
568 // Preserves the ARGB buffer. 568 // Preserves the ARGB buffer.
569 // Returns false in case of error (invalid param, out-of-memory). 569 // Returns false in case of error (invalid param, out-of-memory).
570 int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height); 570 int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height);
571 571
572 //------------------------------------------------------------------------------ 572 //------------------------------------------------------------------------------
573 573
574 #if WEBP_ENCODER_ABI_VERSION <= 0x0202 574 #if WEBP_ENCODER_ABI_VERSION <= 0x0203
575 void WebPMemoryWriterClear(WebPMemoryWriter* writer); 575 void WebPMemoryWriterClear(WebPMemoryWriter* writer);
576 #endif 576 #endif
577 577
578 #ifdef __cplusplus 578 #ifdef __cplusplus
579 } // extern "C" 579 } // extern "C"
580 #endif 580 #endif
581 581
582 #endif /* WEBP_ENC_VP8ENCI_H_ */ 582 #endif /* WEBP_ENC_VP8ENCI_H_ */
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