*: returning &mut Self from setters was an awful idea

Deref breaks things.

src/format/context/output.rs

@@ -83,12 +83,10 @@ impl Output {
 		}
 	}
 
-	pub fn set_metadata(&mut self, dictionary: Dictionary) -> &mut Self {
+	pub fn set_metadata(&mut self, dictionary: Dictionary) {
 		unsafe {
 			(*self.as_mut_ptr()).metadata = dictionary.disown();
 		}
-
-		self
 	}
 }
 

src/format/stream/stream_mut.rs

@@ -29,20 +29,16 @@ impl<'a> StreamMut<'a> {
 }
 
 impl<'a> StreamMut<'a> {
-	pub fn set_time_base<R: Into<Rational>>(&mut self, value: R) -> &mut Self {
+	pub fn set_time_base<R: Into<Rational>>(&mut self, value: R) {
 		unsafe {
 			(*self.as_mut_ptr()).time_base = value.into().into();
 		}
-
-		self
 	}
 
-	pub fn set_rate<R: Into<Rational>>(&mut self, value: R) -> &mut Self {
+	pub fn set_rate<R: Into<Rational>>(&mut self, value: R) {
 		unsafe {
 			av_stream_set_r_frame_rate(self.as_mut_ptr(), value.into().into());
 		}
-
-		self
 	}
 }