diff --git a/src/filter/context/sink.rs b/src/filter/context/sink.rs
index d529a04..1720413 100644
--- a/src/filter/context/sink.rs
+++ b/src/filter/context/sink.rs
@@ -31,4 +31,10 @@ impl<'a> Sink<'a> {
 			}
 		}
 	}
+
+	pub fn set_frame_size(&mut self, value: u32) {
+		unsafe {
+			av_buffersink_set_frame_size(self.ctx.as_mut_ptr(), value);
+		}
+	}
 }