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0c3177737b
Commited in SoC by Vitor Sessak on 2008-03-26 20:56:05 Originally committed as revision 12739 to svn://svn.ffmpeg.org/ffmpeg/trunk
62 lines
2.1 KiB
C
62 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_AVFILTERGRAPH_H
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#define FFMPEG_AVFILTERGRAPH_H
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#include "avfilter.h"
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typedef struct AVFilterGraph {
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unsigned filter_count;
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AVFilterContext **filters;
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} AVFilterGraph;
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/**
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* Add to a graph a graph described by a string.
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* @param graph the filter graph where to link the parsed graph context
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* @param filters string to be parsed
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* @param in input to the graph to be parsed (TODO: allow several)
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* @param inpad pad index of the input
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* @param in output to the graph to be parsed (TODO: allow several)
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* @param inpad pad index of the output
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* @return zero on success, -1 on error
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*/
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int avfilter_graph_parse_chain(AVFilterGraph *graph, const char *filters, AVFilterContext *in, int inpad, AVFilterContext *out, int outpad);
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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 *graphctx, AVFilterContext *filter);
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/**
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* Configure the formats of all the links in the graph.
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*/
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int avfilter_graph_config_formats(AVFilterGraph *graphctx);
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/**
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* Configure the parameters (resolution, etc) of all links in the graph.
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*/
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int avfilter_graph_config_links(AVFilterGraph *graphctx);
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#endif /* FFMPEG_AVFILTERGRAPH_H */
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