From 6e6c4263a02c9162e1ce63015edc0c6432be619b Mon Sep 17 00:00:00 2001
From: liberty-developer <liberty.developer@xmail.net>
Date: Tue, 13 Nov 2018 15:51:23 +0100
Subject: [PATCH] [MSL] write Role for forced subtitles

---
 resources/lib/MSL.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/resources/lib/MSL.py b/resources/lib/MSL.py
index 57eb46a6c..79f703fa0 100644
--- a/resources/lib/MSL.py
+++ b/resources/lib/MSL.py
@@ -464,6 +464,11 @@ def __tranform_to_dash(self, manifest):
                 codecs='wvtt' if downloadable.get('contentProfile') == 'webvtt-lssdh-ios8' else 'stpp',
                 contentType='text',
                 mimeType='text/vtt' if downloadable.get('contentProfile') == 'webvtt-lssdh-ios8' else 'application/ttml+xml')
+            role = ET.SubElement(
+                parent=subtiles_adaption_set,
+                tag = 'Role',
+                schemeIdUri = 'urn:mpeg:dash:role:2011',
+                value = 'forced' if text_track.get('isForced') == True else 'main')
             rep = ET.SubElement(
                 parent=subtiles_adaption_set,
                 tag='Representation',