tree.h
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1 /*
2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
27 #ifndef AVUTIL_TREE_H
28 #define AVUTIL_TREE_H
29 
30 #include "attributes.h"
31 #include "version.h"
32 
45 struct AVTreeNode;
46 #if FF_API_CONTEXT_SIZE
48 #endif
49 
53 struct AVTreeNode *av_tree_node_alloc(void);
54 
64 void *av_tree_find(const struct AVTreeNode *root, void *key, int (*cmp)(void *key, const void *b), void *next[2]);
65 
99 void *av_tree_insert(struct AVTreeNode **rootp, void *key, int (*cmp)(void *key, const void *b), struct AVTreeNode **next);
100 void av_tree_destroy(struct AVTreeNode *t);
101 
112 void av_tree_enumerate(struct AVTreeNode *t, void *opaque, int (*cmp)(void *opaque, void *elem), int (*enu)(void *opaque, void *elem));
113 
118 #endif /* AVUTIL_TREE_H */
Macro definitions for various function/variable attributes.
struct AVTreeNode * av_tree_node_alloc(void)
Allocate an AVTreeNode.
Definition: tree.c:35
#define b
Definition: input.c:52
static float t
void av_tree_destroy(struct AVTreeNode *t)
Definition: tree.c:142
void * av_tree_insert(struct AVTreeNode **rootp, void *key, int(*cmp)(void *key, const void *b), struct AVTreeNode **next)
Insert or remove an element.
Definition: tree.c:59
Libavutil version macros.
attribute_deprecated const int av_tree_node_size
Definition: tree.c:32
void * av_tree_find(const struct AVTreeNode *root, void *key, int(*cmp)(void *key, const void *b), void *next[2])
Find an element.
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:252
void av_tree_enumerate(struct AVTreeNode *t, void *opaque, int(*cmp)(void *opaque, void *elem), int(*enu)(void *opaque, void *elem))
Apply enu(opaque, &elem) to all the elements in the tree in a given range.
Definition: tree.c:151
void * elem
Definition: tree.c:27