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1 /* |
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2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved. |
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3 * |
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4 * Use of this source code is governed by a BSD-style license |
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5 * that can be found in the LICENSE file in the root of the source |
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6 * tree. An additional intellectual property rights grant can be found |
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7 * in the file PATENTS. All contributing project authors may |
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8 * be found in the AUTHORS file in the root of the source tree. |
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9 */ |
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10 |
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11 #ifndef VP9_COMMON_VP9_SEG_COMMON_H_ |
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12 #define VP9_COMMON_VP9_SEG_COMMON_H_ |
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13 |
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14 #include "vp9/common/vp9_treecoder.h" |
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15 |
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16 #define SEGMENT_DELTADATA 0 |
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17 #define SEGMENT_ABSDATA 1 |
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18 |
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19 #define MAX_SEGMENTS 8 |
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20 #define SEG_TREE_PROBS (MAX_SEGMENTS-1) |
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21 |
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22 #define PREDICTION_PROBS 3 |
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23 |
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24 // Segment level features. |
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25 typedef enum { |
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26 SEG_LVL_ALT_Q = 0, // Use alternate Quantizer .... |
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27 SEG_LVL_ALT_LF = 1, // Use alternate loop filter value... |
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28 SEG_LVL_REF_FRAME = 2, // Optional Segment reference frame |
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29 SEG_LVL_SKIP = 3, // Optional Segment (0,0) + skip mode |
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30 SEG_LVL_MAX = 4 // Number of features supported |
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31 } SEG_LVL_FEATURES; |
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32 |
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33 |
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34 struct segmentation { |
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35 uint8_t enabled; |
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36 uint8_t update_map; |
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37 uint8_t update_data; |
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38 uint8_t abs_delta; |
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39 uint8_t temporal_update; |
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40 |
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41 vp9_prob tree_probs[SEG_TREE_PROBS]; |
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42 vp9_prob pred_probs[PREDICTION_PROBS]; |
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43 |
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44 int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX]; |
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45 unsigned int feature_mask[MAX_SEGMENTS]; |
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46 }; |
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47 |
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48 int vp9_segfeature_active(const struct segmentation *seg, |
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49 int segment_id, |
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50 SEG_LVL_FEATURES feature_id); |
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51 |
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52 void vp9_clearall_segfeatures(struct segmentation *seg); |
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53 |
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54 void vp9_enable_segfeature(struct segmentation *seg, |
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55 int segment_id, |
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56 SEG_LVL_FEATURES feature_id); |
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57 |
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58 void vp9_disable_segfeature(struct segmentation *seg, |
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59 int segment_id, |
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60 SEG_LVL_FEATURES feature_id); |
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61 |
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62 int vp9_seg_feature_data_max(SEG_LVL_FEATURES feature_id); |
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63 |
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64 int vp9_is_segfeature_signed(SEG_LVL_FEATURES feature_id); |
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65 |
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66 void vp9_clear_segdata(struct segmentation *seg, |
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67 int segment_id, |
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68 SEG_LVL_FEATURES feature_id); |
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69 |
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70 void vp9_set_segdata(struct segmentation *seg, |
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71 int segment_id, |
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72 SEG_LVL_FEATURES feature_id, |
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73 int seg_data); |
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74 |
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75 int vp9_get_segdata(const struct segmentation *seg, |
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76 int segment_id, |
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77 SEG_LVL_FEATURES feature_id); |
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78 |
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79 extern const vp9_tree_index vp9_segment_tree[TREE_SIZE(MAX_SEGMENTS)]; |
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80 |
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81 #endif // VP9_COMMON_VP9_SEG_COMMON_H_ |
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82 |