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56 lines
1.6 KiB
56 lines
1.6 KiB
/* |
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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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static void destroy_graph_filters(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_freep(&graph->filters); |
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} |
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void avfilter_destroy_graph(AVFilterGraph *graph) |
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{ |
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destroy_graph_filters(graph); |
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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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