diff --git a/AUTHORS b/AUTHORS
index cc26763f9233..9ac80497f5e4 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -78,3 +78,4 @@ Benjamin Jemlich <pcgod99@gmail.com>
 Ningxin Hu <ningxin.hu@intel.com>
 Jared Wein <weinjared@gmail.com>
 Mingmin Xie <melvinxie@gmail.com>
+Michael Gilbert <floppymaster@gmail.com>
diff --git a/media/ffmpeg/file_protocol.cc b/media/ffmpeg/file_protocol.cc
index 3acca44c1174..d70a3dcf7353 100644
--- a/media/ffmpeg/file_protocol.cc
+++ b/media/ffmpeg/file_protocol.cc
@@ -51,7 +51,11 @@ int ReadContext(URLContext* h, unsigned char* buf, int size) {
   return HANDLE_EINTR(read(GetHandle(h), buf, size));
 }
 
+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52, 68, 0)
+int WriteContext(URLContext* h, const unsigned char* buf, int size) {
+#else
 int WriteContext(URLContext* h, unsigned char* buf, int size) {
+#endif
   return HANDLE_EINTR(write(GetHandle(h), buf, size));
 }
 
diff --git a/media/filters/ffmpeg_glue.cc b/media/filters/ffmpeg_glue.cc
index e35d96e9c0b1..cf06f35c7ce1 100644
--- a/media/filters/ffmpeg_glue.cc
+++ b/media/filters/ffmpeg_glue.cc
@@ -34,7 +34,11 @@ int ReadContext(URLContext* h, unsigned char* buf, int size) {
   return result;
 }
 
+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(52, 68, 0)
+int WriteContext(URLContext* h, const unsigned char* buf, int size) {
+#else
 int WriteContext(URLContext* h, unsigned char* buf, int size) {
+#endif
   // We don't support writing.
   return AVERROR_IO;
 }