From dbacaa68abf90a17c409a1a58d0b208bf177a56f Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 5 Apr 2021 23:01:28 +0200
Subject: Add hint when making 4K/3D DCPs (#1951).

---
 src/lib/hints.cc | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/lib/hints.cc')

diff --git a/src/lib/hints.cc b/src/lib/hints.cc
index ad95ff980..21d771634 100644
--- a/src/lib/hints.cc
+++ b/src/lib/hints.cc
@@ -206,6 +206,16 @@ Hints::check_frame_rate ()
 }
 
 
+void
+Hints::check_4k_3d ()
+{
+	auto f = film();
+	if (f->resolution() == Resolution::FOUR_K && f->three_d()) {
+		hint (_("4K 3D is only supported by a very limited number of projectors.  Unless you know that you will play this DCP back on a capable projector, it is advisable to set the DCP to be 2K in the \"DCP→Video\" tab."));
+	}
+}
+
+
 void
 Hints::check_speed_up ()
 {
@@ -377,6 +387,7 @@ Hints::thread ()
 	check_unusual_container ();
 	check_high_j2k_bandwidth ();
 	check_frame_rate ();
+	check_4k_3d ();
 	check_speed_up ();
 	check_vob ();
 	check_3d_in_2d ();
-- 
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