52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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/*
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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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#include "avfilter.h"
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#include "avfiltergraph.h"
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struct AVFilterGraph {
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unsigned filter_count;
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AVFilterContext **filters;
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};
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AVFilterGraph *avfilter_create_graph(void)
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{
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return av_mallocz(sizeof(AVFilterGraph));
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}
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void avfilter_destroy_graph(AVFilterGraph *graph)
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{
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unsigned i;
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for(i = 0; i < graph->filter_count; i ++)
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avfilter_destroy(graph->filters[i]);
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av_free(graph->filters);
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av_free(graph);
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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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graph->filters = av_realloc(graph->filters,
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sizeof(AVFilterContext*) * ++graph->filter_count);
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graph->filters[graph->filter_count - 1] = filter;
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}
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