* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef FFMPEG_AVFILTER_GRAPH_H
-#define FFMPEG_AVFILTER_GRAPH_H
+#ifndef AVFILTER_AVFILTERGRAPH_H
+#define AVFILTER_AVFILTERGRAPH_H
#include "avfilter.h"
-typedef struct AVFilterGraph AVFilterGraph;
+typedef struct AVFilterGraph {
+ unsigned filter_count;
+ AVFilterContext **filters;
-/**
- * Create a new filter graph
- */
-AVFilterGraph *avfilter_create_graph(void);
+ char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
+} AVFilterGraph;
/**
- * Destroy a filter graph, and any filters in it.
- * @param graph The filter graph to destroy
+ * 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.
*/
-void avfilter_destroy_graph(AVFilterGraph *graph);
+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
*/
-void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter);
+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);
/**
- * Loads the filter graph with a simple chain described by filters.
- * @param graph The filter graph to load filters into
- * @param count The number of filters to be created
- * @param filters_list An array of strings describing the filters to be created.
- * The format of each string is "name=params".
- * @param first If non-NULL, will be set to the first filter in the chain.
- * @param last If non-NULL, will be set to the last filter in the chain.
- * @return 0 on success. -1 on error.
+ * Free a graph and destroy its links.
*/
-int avfilter_graph_load_chain(AVFilterGraph *graph,
- unsigned count, char **filter_list,
- AVFilterContext **first, AVFilterContext **last);
-#endif /* FFMPEG_AVFILTER_H */
+void avfilter_graph_destroy(AVFilterGraph *graph);
+
+#endif /* AVFILTER_AVFILTERGRAPH_H */