From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Fri, 6 Mar 2026 16:34:31 +0000 (+0100)
Subject: avi: take palette from bitmapinfo extradata if it happens to be there
X-Git-Url: https://git.nihav.org/?a=commitdiff_plain;h=368d7e889ec333937bca3170e098ad07749204c4;p=nihav.git

avi: take palette from bitmapinfo extradata if it happens to be there
---

diff --git a/nihav-commonfmt/src/demuxers/avi.rs b/nihav-commonfmt/src/demuxers/avi.rs
index 3c6a5cc..957b551 100644
--- a/nihav-commonfmt/src/demuxers/avi.rs
+++ b/nihav-commonfmt/src/demuxers/avi.rs
@@ -147,6 +147,17 @@ impl AVIStream {
                     self.pal = Some(PalInfo { pal: Arc::new(pal), changed: true });
                 }
             }
+        } else if header.colors > 0 {
+            if let Some(ref buf) = header.extradata {
+                let mut pal = [0u8; 1024];
+                for (dpal, spal) in pal.chunks_mut(4).take(header.colors).zip(buf.chunks(4)) {
+                    dpal[0] = spal[2];
+                    dpal[1] = spal[1];
+                    dpal[2] = spal[0];
+                    dpal[3] = 0;
+                }
+                self.pal = Some(PalInfo { pal: Arc::new(pal), changed: true });
+            }
         }
         if is_mvi {
             if let Some(ref mut dta) = edata {