1 files changed, 13 insertions, 0 deletions
diff --git a/lvc/codec/src/impls.rs b/lvc/codec/src/impls.rs
index 098db39..b4cc119 100644
--- a/lvc/codec/src/impls.rs
+++ b/lvc/codec/src/impls.rs
@@ -1,6 +1,19 @@
 use crate::{Frame, Pixel, Ref, View, P2};
 use std::ops::{Add, AddAssign, Index, IndexMut, Sub};
 
+#[cfg(feature = "parallel")]
+pub use rayon::join;
+#[cfg(not(feature = "parallel"))]
+pub fn join<A, B, RA, RB>(oper_a: A, oper_b: B) -> (RA, RB)
+where
+    A: FnOnce() -> RA + Send,
+    B: FnOnce() -> RB + Send,
+    RA: Send,
+    RB: Send,
+{
+    (oper_a(), oper_b())
+}
+
 impl Frame {
     pub fn export(&self, view: View) -> Vec<Pixel> {
         let mut o = vec![];