diff --git a/src/lib.rs b/src/lib.rs
index 65f0a72..8b4e029 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,6 +16,7 @@ pub use util::chroma;
 pub use util::time;
 pub use util::frame::{self, Frame};
 pub use util::samples::Samples;
+pub use util::channel_layout::{self, ChannelLayout};
 
 #[cfg(feature = "format")]
 pub mod format;
diff --git a/src/util/channel_layout.rs b/src/util/channel_layout.rs
new file mode 100644
index 0000000..cd3b505
--- /dev/null
+++ b/src/util/channel_layout.rs
@@ -0,0 +1,61 @@
+use libc::c_ulonglong;
+use ffi::*;
+
+bitflags! {
+	flags ChannelLayout: c_ulonglong {
+		const FRONT_LEFT            = AV_CH_FRONT_LEFT,
+		const FRONT_RIGHT           = AV_CH_FRONT_RIGHT,
+		const FRONT_CENTER          = AV_CH_FRONT_CENTER,
+		const LOW_FREQUENCY         = AV_CH_LOW_FREQUENCY,
+		const BACK_LEFT             = AV_CH_BACK_LEFT,
+		const BACK_RIGHT            = AV_CH_BACK_RIGHT,
+		const FRONT_LEFT_OF_CENTER  = AV_CH_FRONT_LEFT_OF_CENTER,
+		const FRONT_RIGHT_OF_CENTER = AV_CH_FRONT_RIGHT_OF_CENTER,
+		const BACK_CENTER           = AV_CH_BACK_CENTER,
+		const SIDE_LEFT             = AV_CH_SIDE_LEFT,
+		const SIDE_RIGHT            = AV_CH_SIDE_RIGHT,
+		const TOP_CENTER            = AV_CH_TOP_CENTER,
+		const TOP_FRONT_LEFT        = AV_CH_TOP_FRONT_LEFT,
+		const TOP_FRONT_CENTER      = AV_CH_TOP_FRONT_CENTER,
+		const TOP_FRONT_RIGHT       = AV_CH_TOP_FRONT_RIGHT,
+		const TOP_BACK_LEFT         = AV_CH_TOP_BACK_LEFT,
+		const TOP_BACK_CENTER       = AV_CH_TOP_BACK_CENTER,
+		const TOP_BACK_RIGHT        = AV_CH_TOP_BACK_RIGHT,
+		const STEREO_LEFT           = AV_CH_STEREO_LEFT,
+		const STEREO_RIGHT          = AV_CH_STEREO_RIGHT,
+		const WIDE_LEFT             = AV_CH_WIDE_LEFT,
+		const WIDE_RIGHT            = AV_CH_WIDE_RIGHT,
+		const SURROUND_DIRECT_LEFT  = AV_CH_SURROUND_DIRECT_LEFT,
+		const SURROUND_DIRECT_RIGHT = AV_CH_SURROUND_DIRECT_RIGHT,
+		const LOW_FREQUENCY_2       = AV_CH_LOW_FREQUENCY_2,
+		const NATIVE                = AV_CH_LAYOUT_NATIVE,
+
+		const MONO               = FRONT_CENTER.bits,
+		const STEREO             = FRONT_LEFT.bits | FRONT_RIGHT.bits,
+		const _2POINT1           = STEREO.bits | LOW_FREQUENCY.bits,
+		const _2_1               = STEREO.bits | BACK_CENTER.bits,
+		const SURROUND           = STEREO.bits | FRONT_CENTER.bits,
+		const _3POINT1           = SURROUND.bits | LOW_FREQUENCY.bits,
+		const _4POINT0           = SURROUND.bits | BACK_CENTER.bits,
+		const _4POINT1           = _4POINT0.bits | LOW_FREQUENCY.bits,
+		const _2_2               = STEREO.bits | SIDE_LEFT.bits | SIDE_RIGHT.bits,
+		const QUAD               = STEREO.bits | BACK_LEFT.bits | BACK_RIGHT.bits,
+		const _5POINT0           = SURROUND.bits | SIDE_LEFT.bits | SIDE_RIGHT.bits,
+		const _5POINT1           = _5POINT0.bits | LOW_FREQUENCY.bits,
+		const _5POINT0_BACK      = SURROUND.bits | BACK_LEFT.bits | BACK_RIGHT.bits,
+		const _5POINT1_BACK      = _5POINT0_BACK.bits | LOW_FREQUENCY.bits,
+		const _6POINT0           = _5POINT0.bits | BACK_CENTER.bits,
+		const _6POINT0_FRONT     = _2_2.bits | FRONT_LEFT_OF_CENTER.bits | FRONT_RIGHT_OF_CENTER.bits,
+		const HEXAGONAL          = _5POINT0_BACK.bits | BACK_CENTER.bits,
+		const _6POINT1           = _5POINT1.bits | BACK_CENTER.bits,
+		const _6POINT1_BACK      = _5POINT1_BACK.bits | BACK_CENTER.bits,
+		const _6POINT1_FRONT     = _6POINT0_FRONT.bits | LOW_FREQUENCY.bits,
+		const _7POINT0           = _5POINT0.bits | BACK_LEFT.bits | BACK_RIGHT.bits,
+		const _7POINT0_FRONT     = _5POINT0.bits | FRONT_LEFT_OF_CENTER.bits | FRONT_RIGHT_OF_CENTER.bits,
+		const _7POINT1           = _5POINT1.bits | BACK_LEFT.bits | BACK_RIGHT.bits,
+		const _7POINT1_WIDE      = _5POINT1.bits | FRONT_LEFT_OF_CENTER.bits | FRONT_RIGHT_OF_CENTER.bits,
+		const _7POINT1_WIDE_BACK = _5POINT1_BACK.bits | FRONT_LEFT_OF_CENTER.bits | FRONT_RIGHT_OF_CENTER.bits,
+		const OCTAGONAL          = _5POINT0.bits | BACK_LEFT.bits | BACK_CENTER.bits | BACK_RIGHT.bits,
+		const STEREO_DOWNMIX     = STEREO_LEFT.bits | STEREO_RIGHT.bits,
+	}
+}
diff --git a/src/util/mod.rs b/src/util/mod.rs
index 57b979a..996ef4a 100644
--- a/src/util/mod.rs
+++ b/src/util/mod.rs
@@ -9,6 +9,7 @@ pub mod frame;
 pub mod chroma;
 pub mod time;
 pub mod samples;
+pub mod channel_layout;
 
 use std::ffi::CStr;
 use std::str::from_utf8_unchecked;