The Tor Browser: media/libvpx/vp9/common/vp9_seg

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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  */

    11 #ifndef VP9_COMMON_VP9_SEG_COMMON_H_

    12 #define VP9_COMMON_VP9_SEG_COMMON_H_

    14 #include "vp9/common/vp9_treecoder.h"

    16 #define SEGMENT_DELTADATA   0

    17 #define SEGMENT_ABSDATA     1

    19 #define MAX_SEGMENTS     8

    20 #define SEG_TREE_PROBS   (MAX_SEGMENTS-1)

    22 #define PREDICTION_PROBS 3

    24 // Segment level features.

    25 typedef enum {

    26   SEG_LVL_ALT_Q = 0,               // Use alternate Quantizer ....

    27   SEG_LVL_ALT_LF = 1,              // Use alternate loop filter value...

    28   SEG_LVL_REF_FRAME = 2,           // Optional Segment reference frame

    29   SEG_LVL_SKIP = 3,                // Optional Segment (0,0) + skip mode

    30   SEG_LVL_MAX = 4                  // Number of features supported

    31 } SEG_LVL_FEATURES;

    34 struct segmentation {

    35   uint8_t enabled;

    36   uint8_t update_map;

    37   uint8_t update_data;

    38   uint8_t abs_delta;

    39   uint8_t temporal_update;

    41   vp9_prob tree_probs[SEG_TREE_PROBS];

    42   vp9_prob pred_probs[PREDICTION_PROBS];

    44   int16_t feature_data[MAX_SEGMENTS][SEG_LVL_MAX];

    45   unsigned int feature_mask[MAX_SEGMENTS];

    46 };

    48 int vp9_segfeature_active(const struct segmentation *seg,

    49                           int segment_id,

    50                           SEG_LVL_FEATURES feature_id);

    52 void vp9_clearall_segfeatures(struct segmentation *seg);

    54 void vp9_enable_segfeature(struct segmentation *seg,

    55                            int segment_id,

    56                            SEG_LVL_FEATURES feature_id);

    58 void vp9_disable_segfeature(struct segmentation *seg,

    59                             int segment_id,

    60                             SEG_LVL_FEATURES feature_id);

    62 int vp9_seg_feature_data_max(SEG_LVL_FEATURES feature_id);

    64 int vp9_is_segfeature_signed(SEG_LVL_FEATURES feature_id);

    66 void vp9_clear_segdata(struct segmentation *seg,

    67                        int segment_id,

    68                        SEG_LVL_FEATURES feature_id);

    70 void vp9_set_segdata(struct segmentation *seg,

    71                      int segment_id,

    72                      SEG_LVL_FEATURES feature_id,

    73                      int seg_data);

    75 int vp9_get_segdata(const struct segmentation *seg,

    76                     int segment_id,

    77                     SEG_LVL_FEATURES feature_id);

    79 extern const vp9_tree_index vp9_segment_tree[TREE_SIZE(MAX_SEGMENTS)];

    81 #endif  // VP9_COMMON_VP9_SEG_COMMON_H_

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