1/* 2 * Copyright (c) 2012 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_COMMON_VP9_SEG_COMMON_H_ 12#define VP9_COMMON_VP9_SEG_COMMON_H_ 13 14#include "vp9/common/vp9_prob.h" 15 16#ifdef __cplusplus 17extern "C" { 18#endif 19 20#define SEGMENT_DELTADATA 0 21#define SEGMENT_ABSDATA 1 22 23#define MAX_SEGMENTS 8 24#define SEG_TREE_PROBS (MAX_SEGMENTS-1) 25 26#define PREDICTION_PROBS 3 27 28// Segment level features. 29typedef enum { 30 SEG_LVL_ALT_Q = 0, // Use alternate Quantizer .... 31 SEG_LVL_ALT_LF = 1, // Use alternate loop filter value... 32 SEG_LVL_REF_FRAME = 2, // Optional Segment reference frame 33 SEG_LVL_SKIP = 3, // Optional Segment (0,0) + skip mode 34 SEG_LVL_MAX = 4 // Number of features supported 35} SEG_LVL_FEATURES; 36 37 38struct segmentation { 39 uint8_t enabled; 40 uint8_t update_map; 41 uint8_t update_data; 42 uint8_t abs_delta; 43 uint8_t temporal_update; 44 45 vp9_prob tree_probs[SEG_TREE_PROBS]; 46 vp9_prob pred_probs[PREDICTION_PROBS]; 47 48 int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX]; 49 unsigned int feature_mask[MAX_SEGMENTS]; 50}; 51 52int vp9_segfeature_active(const struct segmentation *seg, 53 int segment_id, 54 SEG_LVL_FEATURES feature_id); 55 56void vp9_clearall_segfeatures(struct segmentation *seg); 57 58void vp9_enable_segfeature(struct segmentation *seg, 59 int segment_id, 60 SEG_LVL_FEATURES feature_id); 61 62int vp9_seg_feature_data_max(SEG_LVL_FEATURES feature_id); 63 64int vp9_is_segfeature_signed(SEG_LVL_FEATURES feature_id); 65 66void vp9_set_segdata(struct segmentation *seg, 67 int segment_id, 68 SEG_LVL_FEATURES feature_id, 69 int seg_data); 70 71int vp9_get_segdata(const struct segmentation *seg, 72 int segment_id, 73 SEG_LVL_FEATURES feature_id); 74 75extern const vp9_tree_index vp9_segment_tree[TREE_SIZE(MAX_SEGMENTS)]; 76 77#ifdef __cplusplus 78} // extern "C" 79#endif 80 81#endif // VP9_COMMON_VP9_SEG_COMMON_H_ 82 83