lavfi: make avfilter_insert_pad and pals private on next bump.

They are only useful inside filters and we don't allow user filters for
now.

1 files changed, 33 insertions, 0 deletions

diff --git a/libavfilter/internal.h b/libavfilter/internal.h
index 4eb65305f9..7f7cf45771 100644
--- a/libavfilter/internal.h
+++ b/libavfilter/internal.h
@@ -36,4 +36,37 @@ int ff_fmt_is_in(int fmt, const int *fmts);
 
 void ff_dlog_link(void *ctx, AVFilterLink *link, int end);
 
+/**
+ * Insert a new pad.
+ *
+ * @param idx Insertion point. Pad is inserted at the end if this point
+ *            is beyond the end of the list of pads.
+ * @param count Pointer to the number of pads in the list
+ * @param padidx_off Offset within an AVFilterLink structure to the element
+ *                   to increment when inserting a new pad causes link
+ *                   numbering to change
+ * @param pads Pointer to the pointer to the beginning of the list of pads
+ * @param links Pointer to the pointer to the beginning of the list of links
+ * @param newpad The new pad to add. A copy is made when adding.
+ */
+void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
+                   AVFilterPad **pads, AVFilterLink ***links,
+                   AVFilterPad *newpad);
+
+/** Insert a new input pad for the filter. */
+static inline void ff_insert_inpad(AVFilterContext *f, unsigned index,
+                                   AVFilterPad *p)
+{
+    ff_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad),
+                  &f->input_pads, &f->inputs, p);
+}
+
+/** Insert a new output pad for the filter. */
+static inline void ff_insert_outpad(AVFilterContext *f, unsigned index,
+                                    AVFilterPad *p)
+{
+    ff_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad),
+                  &f->output_pads, &f->outputs, p);
+}
+
 #endif /* AVFILTER_INTERNAL_H */