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 VPX_VP9_ENCODER_VP9_SEGMENTATION_H_
12 #define VPX_VP9_ENCODER_VP9_SEGMENTATION_H_
13 
14 #include "vp9_blockd.h"
15 #include "vp9_encoder.h"
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
21 void calc_segtree_probs(int *segcounts, vpx_prob *segment_tree_probs);
22 
23 void eb_vp9_enable_segmentation(struct segmentation *seg);
24 void eb_vp9_disable_segmentation(struct segmentation *seg);
25 
26 void eb_vp9_disable_segfeature(struct segmentation *seg, int segment_id,
27                             SEG_LVL_FEATURES feature_id);
28 void eb_vp9_clear_segdata(struct segmentation *seg, int segment_id,
29                        SEG_LVL_FEATURES feature_id);
30 
31 // The values given for each segment can be either deltas (from the default
32 // value chosen for the frame) or absolute values.
33 //
34 // Valid range for abs values is (0-127 for MB_LVL_ALT_Q), (0-63 for
35 // SEGMENT_ALT_LF)
36 // Valid range for delta values are (+/-127 for MB_LVL_ALT_Q), (+/-63 for
37 // SEGMENT_ALT_LF)
38 //
39 // abs_delta = SEGMENT_DELTADATA (deltas) abs_delta = SEGMENT_ABSDATA (use
40 // the absolute values given).
41 void eb_vp9_set_segment_data(struct segmentation *seg, signed char *feature_data,
42                           unsigned char abs_delta);
43 
44 void vp9_choose_segmap_coding_method(VP9_COMMON *cm, MACROBLOCKD *xd);
45 
46 void eb_vp9_reset_segment_features(struct segmentation *seg);
47 
48 #ifdef __cplusplus
49 }  // extern "C"
50 #endif
51 
52 #endif  // VPX_VP9_ENCODER_VP9_SEGMENTATION_H_
53