Display dialog on unsupported HLS IA version

Author: emilsvennesson

lib/inputstreamhelper.py

@@ -234,6 +234,8 @@ def _supports_hls(self):
             return True
         else:
             self._log('HLS is not supported on {0} version {1}'.format(self._inputstream_addon, self._inputstream_version()))
+            dialog = xbmcgui.Dialog()
+            dialog.ok(self._language(30004), self._language(30017).format(self._inputstream_addon, config.HLS_MINIMUM_IA_VERSION))
             return False
 
     def _check_drm(self):

resources/language/resource.language.en_gb/strings.po

@@ -76,3 +76,7 @@ msgstr ""
 msgctxt "#30016"
 msgid "Failed to extract [B]Widevine CDM[/B] from zip file."
 msgstr ""
+
+msgctxt "#30017"
+msgid "[B]{0}[/B] {1} or later is required to play this content."
+msgstr ""