1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VP9_ENCODER_VP9_TOKENIZE_H_ 12 #define VP9_ENCODER_VP9_TOKENIZE_H_ 13 14 #include "vp9/common/vp9_entropy.h" 15 16 #include "vp9/encoder/vp9_block.h" 17 #include "vp9/encoder/vp9_treewriter.h" 18 19 #ifdef __cplusplus 20 extern "C" { 21 #endif 22 23 void vp9_tokenize_initialize(); 24 25 #define EOSB_TOKEN 127 // Not signalled, encoder only 26 27 typedef struct { 28 int16_t token; 29 int16_t extra; 30 } TOKENVALUE; 31 32 typedef struct { 33 const vp9_prob *context_tree; 34 int16_t extra; 35 uint8_t token; 36 uint8_t skip_eob_node; 37 } TOKENEXTRA; 38 39 extern const vp9_tree_index vp9_coef_tree[]; 40 extern const vp9_tree_index vp9_coef_con_tree[]; 41 extern struct vp9_token vp9_coef_encodings[]; 42 43 int vp9_is_skippable_in_plane(MACROBLOCK *x, BLOCK_SIZE bsize, int plane); 44 45 struct VP9_COMP; 46 47 void vp9_tokenize_sb(struct VP9_COMP *cpi, TOKENEXTRA **t, int dry_run, 48 BLOCK_SIZE bsize); 49 50 extern const int16_t *vp9_dct_value_cost_ptr; 51 /* TODO: The Token field should be broken out into a separate char array to 52 * improve cache locality, since it's needed for costing when the rest of the 53 * fields are not. 54 */ 55 extern const TOKENVALUE *vp9_dct_value_tokens_ptr; 56 57 #ifdef __cplusplus 58 } // extern "C" 59 #endif 60 61 #endif // VP9_ENCODER_VP9_TOKENIZE_H_ 62