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/*
* Filter graphs
* copyright (c) 2007 Bobby Bingham
*
* 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 AVFILTER_AVFILTERGRAPH_H
#define AVFILTER_AVFILTERGRAPH_H
#include "avfilter.h"
typedef struct AVFilterGraph {
unsigned filter_count;
AVFilterContext **filters;
} AVFilterGraph;
/**
* Get a pointer to a graph by instance name
*/
AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
/**
* Add an existing filter instance to a filter graph.
* @param graph The filter graph
* @param filter The filter to be added
*/
int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
/**
* Configure the formats of all the links in the graph.
*/
int avfilter_graph_config_formats(AVFilterGraph *graphctx);
/**
* Free a graph and destroy its links.
*/
void avfilter_destroy_graph(AVFilterGraph *graph);
#endif /* AVFILTER_AVFILTERGRAPH_H */
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