/**
* A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse(), since this
+ * function may accept a description of a graph with not connected
+ * input/output pads. This struct specifies, per each not connected
+ * pad contained in the graph, the filter context and the pad index
+ * required for establishing a link.
*/
typedef struct AVFilterInOut {
+ /** unique name for this input/output in the list */
char *name;
+
+ /** filter context associated to this input/output */
AVFilterContext *filter_ctx;
+
+ /** index of the filt_ctx pad to use for linking */
int pad_idx;
+ /** next input/input in the list, NULL if this is the last */
struct AVFilterInOut *next;
} AVFilterInOut;