From f69aa41127fa03b3804007825b86328eb85b1134 Mon Sep 17 00:00:00 2001
From: eisneinechse <42617957+eisneinechse@users.noreply.github.com>
Date: Wed, 8 Jul 2020 17:11:47 -0700
Subject: [PATCH] Add some comment

---
 src/FFmpegWriter.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/FFmpegWriter.cpp b/src/FFmpegWriter.cpp
index 643eb8542..6e300bf10 100644
--- a/src/FFmpegWriter.cpp
+++ b/src/FFmpegWriter.cpp
@@ -344,6 +344,8 @@ void FFmpegWriter::SetOption(StreamType stream, std::string name, std::string va
 		if (c) {
 			if (info.interlaced_frame) {
 				c->field_order = info.top_field_first ? AV_FIELD_TT : AV_FIELD_BB;
+				// We only use these two version and ignore AV_FIELD_TB and AV_FIELD_BT
+				// Otherwise we would need to change the whole export window
 			}
 		}
 	} else if (info.has_audio && stream == AUDIO_STREAM && audio_st) {