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
23 #include "avfiltergraph.h"
25 struct AVFilterGraph {
26 unsigned filter_count;
27 AVFilterContext **filters;
30 AVFilterGraph *avfilter_create_graph(void)
32 return av_mallocz(sizeof(AVFilterGraph));
35 static void destroy_graph_filters(AVFilterGraph *graph)
39 for(i = 0; i < graph->filter_count; i ++)
40 avfilter_destroy(graph->filters[i]);
41 av_freep(&graph->filters);
44 void avfilter_destroy_graph(AVFilterGraph *graph)
46 destroy_graph_filters(graph);
50 void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
52 graph->filters = av_realloc(graph->filters,
53 sizeof(AVFilterContext*) * ++graph->filter_count);
54 graph->filters[graph->filter_count - 1] = filter;