1 files changed, 9 insertions, 3 deletions
diff --git a/evc/src/bin/encode.rs b/evc/src/bin/encode.rs
index 1934e26..3e34a3c 100644
--- a/evc/src/bin/encode.rs
+++ b/evc/src/bin/encode.rs
@@ -54,7 +54,7 @@ fn main() -> anyhow::Result<()> {
 fn encode_block(view: View<&Frame>, prev: View<&Frame>) -> Block {
     let diff = View::diff(&view, &prev) / view.area() as f64;
     // eprintln!("{:?} {diff}", view.size);
-    let inner = if diff < 0.5 {
+    let inner = if diff < 0.9 {
         BlockInner::Reference {
             translation: (0, 0),
         }
@@ -62,9 +62,15 @@ fn encode_block(view: View<&Frame>, prev: View<&Frame>) -> Block {
         if view.size.0 < 32 {
             BlockInner::Literal(view.pixels())
         } else {
-            let [a, b] = view.split();
+            let [av, bv] = view.split();
             let [ap, bp] = prev.split();
-            BlockInner::Split(Box::new([encode_block(a, ap), encode_block(b, bp)]))
+            let a = encode_block(av, ap);
+            let b = encode_block(bv, bp);
+            if a.is_literal() && b.is_literal() {
+                BlockInner::Literal(view.pixels())
+            } else {
+                BlockInner::Split(Box::new([a, b]))
+            }
         }
     };