From 0ea721f7ce81357bc4ec6eea609cd50482c3d15b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Diego=20=27Flameeyes=27=20Petten=C3=B2?= Date: Sat, 2 Dec 2006 01:19:48 +0000 Subject: Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course. CVS patchset: 8397 CVS date: 2006/12/02 01:19:48 --- contrib/ffmpeg/libavutil/tree.h | 52 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 contrib/ffmpeg/libavutil/tree.h (limited to 'contrib/ffmpeg/libavutil/tree.h') diff --git a/contrib/ffmpeg/libavutil/tree.h b/contrib/ffmpeg/libavutil/tree.h new file mode 100644 index 000000000..36897ef46 --- /dev/null +++ b/contrib/ffmpeg/libavutil/tree.h @@ -0,0 +1,52 @@ +/* + * copyright (c) 2006 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef TREE_H +#define TREE_H + +struct AVTreeNode; + +/** + * Finds an element. + * @param root a pointer to the root node of the tree + * @param next if next is not NULL then next[0] will contain the previous element and + * next[1] the next element if either doesnt exist then the corresponding + * entry in next is unchanged + * @return an element with cmp(key, elem)==0 or NULL if no such element exists in + * the tree + */ +void *av_tree_find(const struct AVTreeNode *root, void *key, int (*cmp)(void *key, const void *b), void *next[2]); + +/** + * Finds a element for which cmp(key, elem)==0, if no such element is found key + * is inserted into the tree. + * @param rootp a pointer to a pointer to the root node of the tree note the + * root node can change during insertions, this is required to + * keep the tree balanced + * + * @return if no insertion happened, the found element + * if a insertion happened, then either key or NULL is returned (which it is + * depends on the tree state and the implemenattion, you should make no + * asumtations that its one or the other in code) + */ +void *av_tree_insert(struct AVTreeNode **rootp, void *key, int (*cmp)(void *key, const void *b)); +void av_tree_destroy(struct AVTreeNode *t); + +#endif /* TREE_H */ -- cgit v1.2.3