From e82c83b35e7638957f3d80b12d4c59c17436473a Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 14 Nov 2022 00:26:48 +0100
Subject: [PATCH] Basic WebVTT subtitle support (#1361).

---
 cscript                     | 2 +-
 src/lib/content_factory.cc  | 2 +-
 src/lib/string_text_file.cc | 3 +++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/cscript b/cscript
index b4de45028..a3fcc8c53 100644
--- a/cscript
+++ b/cscript
@@ -452,7 +452,7 @@ def dependencies(target, options):
         deps = []
 
     deps.append(('libdcp', 'v1.8.33'))
-    deps.append(('libsub', 'v1.6.37'))
+    deps.append(('libsub', 'v1.6.39'))
     deps.append(('leqm-nrt', '93ae9e6'))
     deps.append(('rtaudio', 'f619b76'))
     # We get our OpenSSL libraries from the environment, but we
diff --git a/src/lib/content_factory.cc b/src/lib/content_factory.cc
index 135f3fe5f..5f1e6c9b7 100644
--- a/src/lib/content_factory.cc
+++ b/src/lib/content_factory.cc
@@ -167,7 +167,7 @@ content_factory (boost::filesystem::path path)
 
 		if (valid_image_file (path)) {
 			single = make_shared<ImageContent>(path);
-		} else if (ext == ".srt" || ext == ".ssa" || ext == ".ass" || ext == ".stl") {
+		} else if (ext == ".srt" || ext == ".ssa" || ext == ".ass" || ext == ".stl" || ext == ".vtt") {
 			single = make_shared<StringTextFileContent>(path);
 		} else if (ext == ".xml") {
 			cxml::Document doc;
diff --git a/src/lib/string_text_file.cc b/src/lib/string_text_file.cc
index 76abe547f..869a2c96a 100644
--- a/src/lib/string_text_file.cc
+++ b/src/lib/string_text_file.cc
@@ -28,6 +28,7 @@
 #include <sub/ssa_reader.h>
 #include <sub/stl_binary_reader.h>
 #include <sub/subrip_reader.h>
+#include <sub/web_vtt_reader.h>
 #include <unicode/ucsdet.h>
 #include <unicode/ucnv.h>
 #include <iostream>
@@ -105,6 +106,8 @@ StringTextFile::StringTextFile (shared_ptr<const StringTextFileContent> content)
 			reader.reset(new sub::SubripReader(utf8.get()));
 		} else if (ext == ".ssa" || ext == ".ass") {
 			reader.reset(new sub::SSAReader(utf8.get()));
+		} else if (ext == ".vtt") {
+			reader.reset(new sub::WebVTTReader(utf8.get()));
 		}
 	}
 
-- 
2.30.2