diff options
Diffstat (limited to 'third_party/aom/av1/encoder/treewriter.c')
-rw-r--r-- | third_party/aom/av1/encoder/treewriter.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/third_party/aom/av1/encoder/treewriter.c b/third_party/aom/av1/encoder/treewriter.c deleted file mode 100644 index 50be72413b..0000000000 --- a/third_party/aom/av1/encoder/treewriter.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * Copyright (c) 2016, Alliance for Open Media. All rights reserved - * - * This source code is subject to the terms of the BSD 2 Clause License and - * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License - * was not distributed with this source code in the LICENSE file, you can - * obtain it at www.aomedia.org/license/software. If the Alliance for Open - * Media Patent License 1.0 was not distributed with this source code in the - * PATENTS file, you can obtain it at www.aomedia.org/license/patent. - */ - -#include "av1/encoder/treewriter.h" - -static void tree2tok(struct av1_token *tokens, const aom_tree_index *tree, - int i, int v, int l) { - v += v; - ++l; - - do { - const aom_tree_index j = tree[i++]; - if (j <= 0) { - tokens[-j].value = v; - tokens[-j].len = l; - } else { - tree2tok(tokens, tree, j, v, l); - } - } while (++v & 1); -} - -void av1_tokens_from_tree(struct av1_token *tokens, - const aom_tree_index *tree) { - tree2tok(tokens, tree, 0, 0, 0); -} - -static unsigned int convert_distribution(unsigned int i, aom_tree tree, - unsigned int branch_ct[][2], - const unsigned int num_events[]) { - unsigned int left, right; - - if (tree[i] <= 0) - left = num_events[-tree[i]]; - else - left = convert_distribution(tree[i], tree, branch_ct, num_events); - - if (tree[i + 1] <= 0) - right = num_events[-tree[i + 1]]; - else - right = convert_distribution(tree[i + 1], tree, branch_ct, num_events); - - branch_ct[i >> 1][0] = left; - branch_ct[i >> 1][1] = right; - return left + right; -} - -void av1_tree_probs_from_distribution(aom_tree tree, - unsigned int branch_ct[/* n-1 */][2], - const unsigned int num_events[/* n */]) { - convert_distribution(0, tree, branch_ct, num_events); -} |