From a7cd9cec31952b932ab80fb50cddec28aab74736 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Fri, 24 Jul 2020 23:18:24 +0200
Subject: WIP

---
 src/lib/image_decoder.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/src/lib/image_decoder.cc b/src/lib/image_decoder.cc
index 15187b11b..4052d8c2f 100644
--- a/src/lib/image_decoder.cc
+++ b/src/lib/image_decoder.cc
@@ -55,7 +55,8 @@ ImageDecoder::pass ()
 
 	if (!_image_content->still() || !_image) {
 		/* Either we need an image or we are using moving images, so load one */
-		boost::filesystem::path path = _image_content->path (_image_content->still() ? 0 : _frame_video_position);
+		DCPOMATIC_ASSERT (_frame_video_position >= 0);
+		boost::filesystem::path path = _image_content->path (_image_content->still() ? 0 : static_cast<size_t>(_frame_video_position));
 		if (valid_j2k_file (path)) {
 			AVPixelFormat pf;
 			if (_image_content->video->colour_conversion()) {
-- 
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