/src/libvpx/vpx_dsp/prob.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright (c) 2013 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 | | #include "./prob.h" |
12 | | |
13 | | const uint8_t vpx_norm[256] = { |
14 | | 0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
15 | | 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
16 | | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
17 | | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
18 | | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, |
19 | | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
20 | | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
21 | | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
22 | | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
23 | | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
24 | | }; |
25 | | |
26 | | static unsigned int tree_merge_probs_impl(unsigned int i, |
27 | | const vpx_tree_index *tree, |
28 | | const vpx_prob *pre_probs, |
29 | | const unsigned int *counts, |
30 | 0 | vpx_prob *probs) { |
31 | 0 | const int l = tree[i]; |
32 | 0 | const unsigned int left_count = |
33 | 0 | (l <= 0) ? counts[-l] |
34 | 0 | : tree_merge_probs_impl(l, tree, pre_probs, counts, probs); |
35 | 0 | const int r = tree[i + 1]; |
36 | 0 | const unsigned int right_count = |
37 | 0 | (r <= 0) ? counts[-r] |
38 | 0 | : tree_merge_probs_impl(r, tree, pre_probs, counts, probs); |
39 | 0 | const unsigned int ct[2] = { left_count, right_count }; |
40 | 0 | probs[i >> 1] = mode_mv_merge_probs(pre_probs[i >> 1], ct); |
41 | 0 | return left_count + right_count; |
42 | 0 | } |
43 | | |
44 | | void vpx_tree_merge_probs(const vpx_tree_index *tree, const vpx_prob *pre_probs, |
45 | 0 | const unsigned int *counts, vpx_prob *probs) { |
46 | 0 | tree_merge_probs_impl(0, tree, pre_probs, counts, probs); |
47 | 0 | } |