diff --git a/src/lib.rs b/src/lib.rs
index 20b0064..a8e7cdc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,3 +11,4 @@ pub use util::dictionary::Dictionary;
 pub use util::rational::Rational;
 pub use util::color_space::ColorSpace;
 pub use util::color_range::ColorRange;
+pub use util::media;
diff --git a/src/util/media.rs b/src/util/media.rs
new file mode 100644
index 0000000..5723d06
--- /dev/null
+++ b/src/util/media.rs
@@ -0,0 +1,38 @@
+use ffi::*;
+
+#[derive(Eq, PartialEq, Clone, Copy, Debug)]
+pub enum Type {
+	Unknown,
+	Video,
+	Audio,
+	Data,
+	Subtitle,
+	Attachment,
+}
+
+impl From<AVMediaType> for Type {
+	fn from(value: AVMediaType) -> Self {
+		match value {
+			AVMEDIA_TYPE_UNKNOWN    => Type::Unknown,
+			AVMEDIA_TYPE_VIDEO      => Type::Video,
+			AVMEDIA_TYPE_AUDIO      => Type::Audio,
+			AVMEDIA_TYPE_DATA       => Type::Data,
+			AVMEDIA_TYPE_SUBTITLE   => Type::Subtitle,
+			AVMEDIA_TYPE_ATTACHMENT => Type::Attachment,
+			AVMEDIA_TYPE_NB         => Type::Unknown,
+		}
+	}
+}
+
+impl Into<AVMediaType> for Type {
+	fn into(self) -> AVMediaType {
+		match self {
+			Type::Unknown    => AVMEDIA_TYPE_UNKNOWN,
+			Type::Video      => AVMEDIA_TYPE_VIDEO,
+			Type::Audio      => AVMEDIA_TYPE_AUDIO,
+			Type::Data       => AVMEDIA_TYPE_DATA,
+			Type::Subtitle   => AVMEDIA_TYPE_SUBTITLE,
+			Type::Attachment => AVMEDIA_TYPE_ATTACHMENT,
+		}
+	}
+}
diff --git a/src/util/mod.rs b/src/util/mod.rs
index 074511e..a68c8bc 100644
--- a/src/util/mod.rs
+++ b/src/util/mod.rs
@@ -1,6 +1,7 @@
 pub mod dictionary;
 pub mod error;
 pub mod rational;
+pub mod media;
 pub mod color_space;
 pub mod color_range;