diff --git a/src/format/mod.rs b/src/format/mod.rs
index 38ba03b..77d3011 100644
--- a/src/format/mod.rs
+++ b/src/format/mod.rs
@@ -1,3 +1,6 @@
+pub use ::util::sample_format::SampleFormat as Sample;
+pub use ::util::pixel_format::PixelFormat as Pixel;
+
 use std::ffi::CStr;
 use std::str::from_utf8_unchecked;