mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.0 KiB
69 lines
2.0 KiB
/* |
|
* 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 */
|
|
|