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f8c77c823c
Commited in SoC by Bobby Bingham on 2007-07-14 22:26:37 Originally committed as revision 12688 to svn://svn.ffmpeg.org/ffmpeg/trunk
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/*
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* Filter graphs
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* copyright (c) 2007 Bobby Bingham
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef FFMPEG_AVFILTER_GRAPH_H
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#define FFMPEG_AVFILTER_GRAPH_H
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#include "avfilter.h"
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typedef struct AVFilterGraph AVFilterGraph;
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/**
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* Create a new filter graph
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*/
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AVFilterGraph *avfilter_create_graph(void);
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/**
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* Destroy a filter graph, and any filters in it.
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* @param graph The filter graph to destroy
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*/
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void avfilter_destroy_graph(AVFilterGraph *graph);
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/**
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* Add an existing filter instance to a filter graph.
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* @param graph The filter graph
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* @param filter The filter to be added
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*/
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void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter);
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/**
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* Loads the filter graph with a simple chain described by filters.
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* @param graph The filter graph to load filters into
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* @param count The number of filters to be created
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* @param filters_list An array of strings describing the filters to be created.
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* The format of each string is "name=params".
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* @param first If non-NULL, will be set to the first filter in the chain.
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* @param last If non-NULL, will be set to the last filter in the chain.
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* @return 0 on success. -1 on error.
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*/
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int avfilter_graph_load_chain(AVFilterGraph *graph,
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unsigned count, char **filter_list,
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AVFilterContext **first, AVFilterContext **last);
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#endif /* FFMPEG_AVFILTER_H */
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