OO-4793: Accept m3u8 format for URL import

src/main/java/org/olat/modules/video/VideoFormat.java

@@ -39,6 +39,7 @@ public enum VideoFormat {
 	 * Local mp4 encoded with h264
 	 */
 	mp4("video/mp4"),
+	m3u8("application/x-mpegURL"),
 	youtube("video/youtube"),
 	vimeo("video/vimeo"),
 	panopto("video/mp4");
@@ -89,6 +90,8 @@ public enum VideoFormat {
 					return VideoFormat.panopto;
 				} else if(url.endsWith(".mp4")) {
 					return VideoFormat.mp4;
+				} else if(url.endsWith(".m3u8")) {
+					return VideoFormat.m3u8;
 				}
 			} catch (MalformedURLException e) {
 				log.warn("Cannot read url: " + url, e);

src/main/java/org/olat/repository/_i18n/LocalStrings_en.properties

@@ -199,7 +199,7 @@ cmd.finish=Finish Wizard
 cmd.forward=Next
 cmd.import.ressource=Import
 cmd.import.ressource.desc=Choose a learning resource to import\:<ul><li>OpenOlat formats\: course, resource folder, glossary, wiki, podcast, blog, portfolio template</li><li>Videos\: MP4</li><li>Standard formats\: IMS Content Packaging, IMS QTI 2.1 assessment, SCORM 1.2</li><li>Files\: any</li></ul> 
-cmd.import.ressource.url.desc=Enter an URL to import\:<ul><li>Videos\: MP4, Youtube, Vimeo, Panopto</li><li>Blog or Podcast</li></ul>
+cmd.import.ressource.url.desc=Enter an URL to import\:<ul><li>Videos\: MP4, m3u8, Youtube, Vimeo, Panopto</li><li>Blog or Podcast</li></ul>
 cmd.import.url.ressource=Import URL
 comments=Comments
 confirmation.no.toolHelp=Cancel action.