3 * copyright (c) 2007 Bobby Bingham
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #ifndef FFMPEG_AVFILTER_GRAPH_H
23 #define FFMPEG_AVFILTER_GRAPH_H
27 typedef struct AVFilterGraph AVFilterGraph;
30 * Create a new filter graph
32 AVFilterGraph *avfilter_create_graph(void);
35 * Destroy a filter graph, and any filters in it.
36 * @param graph The filter graph to destroy
38 void avfilter_destroy_graph(AVFilterGraph *graph);
41 * Add an existing filter instance to a filter graph.
42 * @param graph The filter graph
43 * @param filter The filter to be added
45 void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter);
48 * Loads the filter graph with a simple chain described by filters.
49 * @param graph The filter graph to load filters into
50 * @param count The number of filters to be created
51 * @param filters_list An array of strings describing the filters to be created.
52 * The format of each string is "name=params".
53 * @param first If non-NULL, will be set to the first filter in the chain.
54 * @param last If non-NULL, will be set to the last filter in the chain.
55 * @return 0 on success. -1 on error.
57 int avfilter_graph_load_chain(AVFilterGraph *graph,
58 unsigned count, char **filter_list,
59 AVFilterContext **first, AVFilterContext **last);
60 #endif /* FFMPEG_AVFILTER_H */