michael@0: /*
michael@0:  *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
michael@0:  *
michael@0:  *  Use of this source code is governed by a BSD-style license
michael@0:  *  that can be found in the LICENSE file in the root of the source
michael@0:  *  tree. An additional intellectual property rights grant can be found
michael@0:  *  in the file PATENTS.  All contributing project authors may
michael@0:  *  be found in the AUTHORS file in the root of the source tree.
michael@0:  */
michael@0: 
michael@0: #ifndef VP9_COMMON_VP9_SEG_COMMON_H_
michael@0: #define VP9_COMMON_VP9_SEG_COMMON_H_
michael@0: 
michael@0: #include "vp9/common/vp9_treecoder.h"
michael@0: 
michael@0: #define SEGMENT_DELTADATA   0
michael@0: #define SEGMENT_ABSDATA     1
michael@0: 
michael@0: #define MAX_SEGMENTS     8
michael@0: #define SEG_TREE_PROBS   (MAX_SEGMENTS-1)
michael@0: 
michael@0: #define PREDICTION_PROBS 3
michael@0: 
michael@0: // Segment level features.
michael@0: typedef enum {
michael@0:   SEG_LVL_ALT_Q = 0,               // Use alternate Quantizer ....
michael@0:   SEG_LVL_ALT_LF = 1,              // Use alternate loop filter value...
michael@0:   SEG_LVL_REF_FRAME = 2,           // Optional Segment reference frame
michael@0:   SEG_LVL_SKIP = 3,                // Optional Segment (0,0) + skip mode
michael@0:   SEG_LVL_MAX = 4                  // Number of features supported
michael@0: } SEG_LVL_FEATURES;
michael@0: 
michael@0: 
michael@0: struct segmentation {
michael@0:   uint8_t enabled;
michael@0:   uint8_t update_map;
michael@0:   uint8_t update_data;
michael@0:   uint8_t abs_delta;
michael@0:   uint8_t temporal_update;
michael@0: 
michael@0:   vp9_prob tree_probs[SEG_TREE_PROBS];
michael@0:   vp9_prob pred_probs[PREDICTION_PROBS];
michael@0: 
michael@0:   int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX];
michael@0:   unsigned int feature_mask[MAX_SEGMENTS];
michael@0: };
michael@0: 
michael@0: int vp9_segfeature_active(const struct segmentation *seg,
michael@0:                           int segment_id,
michael@0:                           SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: void vp9_clearall_segfeatures(struct segmentation *seg);
michael@0: 
michael@0: void vp9_enable_segfeature(struct segmentation *seg,
michael@0:                            int segment_id,
michael@0:                            SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: void vp9_disable_segfeature(struct segmentation *seg,
michael@0:                             int segment_id,
michael@0:                             SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: int vp9_seg_feature_data_max(SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: int vp9_is_segfeature_signed(SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: void vp9_clear_segdata(struct segmentation *seg,
michael@0:                        int segment_id,
michael@0:                        SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: void vp9_set_segdata(struct segmentation *seg,
michael@0:                      int segment_id,
michael@0:                      SEG_LVL_FEATURES feature_id,
michael@0:                      int seg_data);
michael@0: 
michael@0: int vp9_get_segdata(const struct segmentation *seg,
michael@0:                     int segment_id,
michael@0:                     SEG_LVL_FEATURES feature_id);
michael@0: 
michael@0: extern const vp9_tree_index vp9_segment_tree[TREE_SIZE(MAX_SEGMENTS)];
michael@0: 
michael@0: #endif  // VP9_COMMON_VP9_SEG_COMMON_H_
michael@0: