int ff_ass_add_rect(AVSubtitle *sub, const char *dialog,
int ts_start, int duration, int raw);
+/**
+ * Same as ff_ass_add_rect_bprint, but taking an AVBPrint buffer instead of a
+ * string, and assuming raw=0.
+ */
+int ff_ass_add_rect_bprint(AVSubtitle *sub, AVBPrint *buf,
+ int ts_start, int duration);
+
/**
* Add an ASS dialog line to an AVBPrint buffer.
*