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/*
* 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_INTERNAL_H
#define AVFILTER_INTERNAL_H
/**
* @file
* internal API functions
*/
#include "avfilter.h"
#include "avfiltergraph.h"
/**
* Check for the validity of graph.
*
* A graph is considered valid if all its input and output pads are
* connected.
*
* @return 0 in case of success, a negative value otherwise
*/
int ff_avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx);
/**
* Configure all the links of graphctx.
*
* @return 0 in case of success, a negative value otherwise
*/
int ff_avfilter_graph_config_links(AVFilterGraph *graphctx, AVClass *log_ctx);
/**
* Configure the formats of all the links in the graph.
*/
int ff_avfilter_graph_config_formats(AVFilterGraph *graphctx, AVClass *log_ctx);
/** default handler for freeing audio/video buffer when there are no references left */
void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);
#endif /* AVFILTER_INTERNAL_H */
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