codec/field_order: add enum

src/codec/field_order.rs

@@ -0,0 +1,37 @@
+use ffi::*;
+
+#[derive(Eq, PartialEq, Clone, Copy, Debug)]
+pub enum FieldOrder {
+	Unknown,
+	Progressive,
+	TT,
+	BB,
+	TB,
+	BT,
+}
+
+impl From<AVFieldOrder> for FieldOrder {
+	fn from(value: AVFieldOrder) -> Self {
+		match value {
+			AV_FIELD_UNKNOWN     => FieldOrder::Unknown,
+			AV_FIELD_PROGRESSIVE => FieldOrder::Progressive,
+			AV_FIELD_TT          => FieldOrder::TT,
+			AV_FIELD_BB          => FieldOrder::BB,
+			AV_FIELD_TB          => FieldOrder::TB,
+			AV_FIELD_BT          => FieldOrder::BT
+		}
+	}
+}
+
+impl Into<AVFieldOrder> for FieldOrder {
+	fn into(self) -> AVFieldOrder {
+		match self {
+			FieldOrder::Unknown     => AV_FIELD_UNKNOWN,
+			FieldOrder::Progressive => AV_FIELD_PROGRESSIVE,
+			FieldOrder::TT          => AV_FIELD_TT,
+			FieldOrder::BB          => AV_FIELD_BB,
+			FieldOrder::TB          => AV_FIELD_TB,
+			FieldOrder::BT          => AV_FIELD_BT
+		}
+	}
+}

src/codec/mod.rs

@@ -14,6 +14,7 @@ pub use self::context::Context;
 
 pub mod codec;
 
+pub mod field_order;
 pub mod audio_service;
 
 pub mod encoder;

src/lib.rs

@@ -35,6 +35,8 @@ pub use codec::discard::Discard;
 #[cfg(feature = "codec")]
 pub use codec::codec::Codec;
 #[cfg(feature = "codec")]
+pub use codec::field_order::FieldOrder;
+#[cfg(feature = "codec")]
 pub use codec::audio_service::AudioService;
 
 #[cfg(feature = "device")]