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@@ -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

avfilter: add needs_writable field to the internal AVFilterPad structure