From 5633cf1b5fb1d07c2ae0cf4749bef3d08dde260a Mon Sep 17 00:00:00 2001
From: dyknon <dyknon@r5f.jp>
Date: Thu, 20 Feb 2025 22:31:21 +0900
Subject: simple v4l2 application now...

---
 src/color.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 src/color.rs

(limited to 'src/color.rs')

diff --git a/src/color.rs b/src/color.rs
new file mode 100644
index 0000000..3b27fa0
--- /dev/null
+++ b/src/color.rs
@@ -0,0 +1,12 @@
+// TODO: avoid using float
+pub fn yuv2rgb(y: u8, u: u8, v: u8) -> (u8, u8, u8){
+    fn rc(v: f64) -> u8{ v.round().clamp(0., 255.) as u8 }
+    let y = y as f64;
+    let u = u as f64 - 128.;
+    let v = v as f64 - 128.;
+    (
+        rc(y           + 1.402*v),
+        rc(y - 0.344*u - 0.714*v),
+        rc(y + 1.772*u          ),
+    )
+}
-- 
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