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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 "libavutil/internal.h"
#include "avfilter.h"
/**
* Negotiate the media format, dimensions, etc of all inputs to a filter.
*
* @param filter the filter to negotiate the properties for its inputs
* @return zero on successful negotiation
*/
int ff_filter_config_links(AVFilterContext *filter);
/* misc trace functions */
#define FF_TPRINTF_START(ctx, func) ff_tlog(NULL, "%-16s: ", #func)
#ifdef TRACE
void ff_tlog_link(void *ctx, AVFilterLink *link, int end);
#else
#define ff_tlog_link(ctx, link, end) do { } while(0)
#endif
/**
* Run one round of processing on a filter graph.
*/
int ff_filter_graph_run_once(AVFilterGraph *graph);
#endif /* AVFILTER_INTERNAL_H */
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