From e04e9da29806271ed4cd956e3084f3b9145c748a Mon Sep 17 00:00:00 2001
From: "main()" <main@ehvag.eu.org>
Date: Wed, 1 Feb 2017 17:18:19 +0100
Subject: [PATCH] format/context/output: pass muxer options to
 avformat_write_header

---
 src/format/context/output.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/format/context/output.rs b/src/format/context/output.rs
index dc1e4cc..8ddd97a 100644
--- a/src/format/context/output.rs
+++ b/src/format/context/output.rs
@@ -36,10 +36,11 @@ impl Output {
 		}
 	}
 
-	pub fn write_header(&mut self) -> Result<(), Error> {
+	pub fn write_header(&mut self, dictionary: Dictionary) -> Result<Dictionary, Error> {
 		unsafe {
-			match avformat_write_header(self.as_mut_ptr(), ptr::null_mut()) {
-				0 => Ok(()),
+			let mut d = dictionary.disown();
+			match avformat_write_header(self.as_mut_ptr(), &mut d) {
+				0 => Ok(Dictionary::own(d)),
 				e => Err(Error::from(e)),
 			}
 		}