diff --git a/src/util/frame/mod.rs b/src/util/frame/mod.rs
index 5dcf75f..03e2f31 100644
--- a/src/util/frame/mod.rs
+++ b/src/util/frame/mod.rs
@@ -7,7 +7,7 @@ use std::mem;
 use std::ops::Deref;
 
 use ffi::*;
-use ::{Dictionary, ColorSpace, ColorRange};
+use ::{Dictionary, ColorSpace, ColorRange, Rational};
 use ::util::pixel_format::PixelFormat;
 use ::util::sample_format::SampleFormat;
 use ::picture;
@@ -299,6 +299,12 @@ impl Video {
 			av_frame_set_color_range(self.0.ptr, value.into());
 		}
 	}
+
+	pub fn aspect_ratio(&self) -> Rational {
+		unsafe {
+			Rational((*self.0.ptr).sample_aspect_ratio)
+		}
+	}
 }
 
 impl Into<Video> for Frame {