---
libavfilter/internal.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavfilter/internal.h b/libavfilter/internal.h
index 44e7583..6a752dc 100644
--- a/libavfilter/internal.h
+++ b/libavfilter/internal.h
@@ -117,6 +117,14 @@ struct AVFilterPad {
* input pads only.
*/
int needs_fifo;
+
+ /**
+ * The filter expects writable frames from its input link,
+ * duplicating data buffers if needed.
+ *
+ * input pads only.
+ */
+ int needs_writable;
};
#endif
--
1.7.9.5
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