diff --git a/examples/transcode-audio.rs b/examples/transcode-audio.rs
index deac4ea..71e3a3b 100644
--- a/examples/transcode-audio.rs
+++ b/examples/transcode-audio.rs
@@ -50,7 +50,7 @@ fn transcoder<P: AsRef<Path>>(ictx: &mut format::context::Input, octx: &mut form
 	let codec   = try!(ffmpeg::encoder::find(octx.format().codec(path, media::Type::Audio)).expect("failed to find encoder").audio());
 	let global  = octx.format().flags().contains(ffmpeg::format::flag::GLOBAL_HEADER);
 
-	try!(decoder.set_parameters(&input.parameters()));
+	try!(decoder.set_parameters(input.parameters()));
 
 	let mut output  = try!(octx.add_stream(codec));
 	let mut encoder = try!(output.codec().encoder().audio());
diff --git a/src/codec/context.rs b/src/codec/context.rs
index cee7911..98de7f4 100644
--- a/src/codec/context.rs
+++ b/src/codec/context.rs
@@ -104,9 +104,11 @@ impl Context {
 		}
 	}
 
-	pub fn set_parameters(&mut self, params: &Parameters) -> Result<(), Error> {
+	pub fn set_parameters<P: Into<Parameters>>(&mut self, parameters: P) -> Result<(), Error> {
+		let parameters = parameters.into();
+
 		unsafe {
-			match avcodec_parameters_to_context(self.as_mut_ptr(), params.as_ptr()) {
+			match avcodec_parameters_to_context(self.as_mut_ptr(), parameters.as_ptr()) {
 				e if e < 0 => Err(Error::from(e)),
 				_          => Ok(()),
 			}