Libav 0.7.1
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00001 /* 00002 * Filter graphs 00003 * copyright (c) 2007 Bobby Bingham 00004 * 00005 * This file is part of Libav. 00006 * 00007 * Libav is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * Libav is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with Libav; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVFILTER_AVFILTERGRAPH_H 00023 #define AVFILTER_AVFILTERGRAPH_H 00024 00025 #include "avfilter.h" 00026 00027 typedef struct AVFilterGraph { 00028 unsigned filter_count; 00029 AVFilterContext **filters; 00030 00031 char *scale_sws_opts; 00032 } AVFilterGraph; 00033 00037 AVFilterGraph *avfilter_graph_alloc(void); 00038 00045 AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name); 00046 00053 int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter); 00054 00068 int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt, 00069 const char *name, const char *args, void *opaque, 00070 AVFilterGraph *graph_ctx); 00071 00079 int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx); 00080 00085 void avfilter_graph_free(AVFilterGraph **graph); 00086 00096 typedef struct AVFilterInOut { 00098 char *name; 00099 00101 AVFilterContext *filter_ctx; 00102 00104 int pad_idx; 00105 00107 struct AVFilterInOut *next; 00108 } AVFilterInOut; 00109 00119 int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, 00120 AVFilterInOut *inputs, AVFilterInOut *outputs, 00121 AVClass *log_ctx); 00122 00123 #endif /* AVFILTER_AVFILTERGRAPH_H */