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