codec/discard: add Discard

src/codec/discard.rs

@@ -0,0 +1,40 @@
+use ffi::*;
+
+#[derive(Eq, PartialEq, Clone, Copy, Debug)]
+pub enum Discard {
+	None,
+	Default,
+	NonReference,
+	Bidirectional,
+	NonIntra,
+	NonKey,
+	All,
+}
+
+impl From<AVDiscard> for Discard {
+	fn from(value: AVDiscard) -> Self {
+		match value {
+			AVDISCARD_NONE     => Discard::None,
+			AVDISCARD_DEFAULT  => Discard::Default,
+			AVDISCARD_NONREF   => Discard::NonReference,
+			AVDISCARD_BIDIR    => Discard::Bidirectional,
+			AVDISCARD_NONINTRA => Discard::NonIntra,
+			AVDISCARD_NONKEY   => Discard::NonKey,
+			AVDISCARD_ALL      => Discard::All
+		}
+	}
+}
+
+impl Into<AVDiscard> for Discard {
+	fn into(self) -> AVDiscard {
+		match self {
+			Discard::None          => AVDISCARD_NONE,
+			Discard::Default       => AVDISCARD_DEFAULT,
+			Discard::NonReference  => AVDISCARD_NONREF,
+			Discard::Bidirectional => AVDISCARD_BIDIR,
+			Discard::NonIntra      => AVDISCARD_NONINTRA,
+			Discard::NonKey        => AVDISCARD_NONKEY,
+			Discard::All           => AVDISCARD_ALL
+		}
+	}
+}

src/codec/mod.rs

@@ -5,6 +5,8 @@ pub mod packet;
 
 pub mod subtitle;
 
+pub mod discard;
+
 use std::ffi::CStr;
 use std::str::from_utf8_unchecked;
 

src/lib.rs

@@ -17,3 +17,4 @@ pub use util::frame::{self, Frame};
 pub mod codec;
 pub use codec::packet::{self, Packet};
 pub use codec::subtitle::Subtitle;
+pub use codec::discard::Discard;