From 529d3bb4944cd2bad90403ad8021e4991216546f Mon Sep 17 00:00:00 2001
From: Justin Turner Arthur <justinarthur@gmail.com>
Date: Sat, 16 Nov 2024 03:01:47 -0600
Subject: [PATCH] Treat non-subsampled XYZ tristimulus as RGB color family.

It better conveys that they are matrix-able primaries.
---
 src/videosource.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/videosource.cpp b/src/videosource.cpp
index d1cdbd9..0389288 100644
--- a/src/videosource.cpp
+++ b/src/videosource.cpp
@@ -55,6 +55,12 @@ static int GetColorFamily(const AVPixFmtDescriptor *Desc) {
         return 1;
     else if (Desc->flags & AV_PIX_FMT_FLAG_RGB)
         return 2;
+    else if (
+        Desc->flags & AV_PIX_FMT_FLAG_XYZ
+        && Desc->log2_chroma_h == 0
+        && Desc->log2_chroma_w == 0
+    )
+        return 2;
     else
         return 3;
 }