lavfi: add avfilter_pad_get_type() and avfilter_pad_get_name().

This will allow making AVFilterPad opaque for the calling apps, since
those are the only two fields that can be useful to the users.

1 files changed, 22 insertions, 0 deletions

diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 7fbc160cbe..7ee18fbce6 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -359,6 +359,28 @@ struct AVFilterPad {
     int (*config_props)(AVFilterLink *link);
 };
 
+/**
+ * Get the name of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array it; is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return name of the pad_idx'th pad in pads
+ */
+const char *avfilter_pad_get_name(AVFilterPad *pads, int pad_idx);
+
+/**
+ * Get the type of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array; it is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return type of the pad_idx'th pad in pads
+ */
+enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx);
+
 #if FF_API_FILTERS_PUBLIC
 /** default handler for start_frame() for video inputs */
 attribute_deprecated