From 10dedf0d7c3c2fd9b101881ae6a01e6338a958e1 Mon Sep 17 00:00:00 2001
From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Thu, 23 Feb 2023 17:48:24 +0100
Subject: [PATCH] cinepakenc: fix mask output optimisation

---
 nihav-commonfmt/src/codecs/cinepakenc.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nihav-commonfmt/src/codecs/cinepakenc.rs b/nihav-commonfmt/src/codecs/cinepakenc.rs
index c6af8f6..4729cd6 100644
--- a/nihav-commonfmt/src/codecs/cinepakenc.rs
+++ b/nihav-commonfmt/src/codecs/cinepakenc.rs
@@ -883,7 +883,7 @@ impl CinepakEncoder {
             let mut skip = true;
             for mask in self.masks.masks.iter() {
                 bw.write_u32be(*mask)?;
-                if *mask == 0 { continue; }
+                if *mask == 0 && skip { continue; }
                 let mut bit = 1 << 31;
                 while bit > 0 {
                     if skip {
-- 
2.39.5