| /* |
| * Filter graphs |
| * copyright (c) 2007 Bobby Bingham |
| * |
| * 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_AVFILTERGRAPH_H |
| #define AVFILTER_AVFILTERGRAPH_H |
| |
| #include "avfilter.h" |
| |
| typedef struct AVFilterGraph { |
| unsigned filter_count; |
| AVFilterContext **filters; |
| |
| char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters |
| } AVFilterGraph; |
| |
| /** |
| * Get from \p graph a filter instance with name \p name. |
| * |
| * @return the pointer to the found filter instance or NULL if it |
| * cannot be found. |
| */ |
| AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name); |
| |
| /** |
| * Add an existing filter instance to a filter graph. |
| * @param graph The filter graph |
| * @param filter The filter to be added |
| */ |
| int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter); |
| |
| /** |
| * Check for the validity of \p 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 avfilter_graph_check_validity(AVFilterGraph *graphctx, AVClass *log_ctx); |
| |
| /** |
| * Configure the formats of all the links in the graph. |
| */ |
| int avfilter_graph_config_formats(AVFilterGraph *graphctx); |
| |
| /** |
| * Free a graph and destroy its links. |
| */ |
| void avfilter_graph_destroy(AVFilterGraph *graph); |
| |
| #endif /* AVFILTER_AVFILTERGRAPH_H */ |