add/remove comments

Author: yingjin

src/app/item-page/media-viewer/media-viewer-video/caption-info.ts

@@ -1,3 +1,10 @@
+/*
+  The class is designed to host information related to Video Captioning support
+  and used in HTML 5 video track
+  src: source vtt file
+  srclang: two letter language code
+  langLabel: language label
+ */
 export class CaptionInfo {
   constructor(public src: string, public srclang: string, public langLabel: string ) {
   }

src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.html

@@ -10,7 +10,6 @@
   preload="none"
   controls
 >
-<!--  <track default kind="captions" src="./assets/vtt/JusticeAndTransformation_caption.mp4-en.vtt" label="English" type="text/vtt"/>-->
   <ng-container *ngIf="getMediaCap(filteredMedias[currentIndex].bitstream.name) as capInfos">
     <ng-container *ngFor="let capInfo of capInfos">
       <track [src]="capInfo.src" [label]="capInfo.langLabel" [srclang]="capInfo.srclang" />

src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.ts

@@ -52,7 +52,6 @@ export class MediaViewerVideoComponent implements OnInit {
       filteredCapMedias
         .forEach((media, index) => {
           let srclang: string = media.bitstream.name.slice(-6, -4).toLowerCase();
-          //capInfos[index] = new CaptionInfo(
           capInfos.push(new CaptionInfo(
             media.bitstream._links.content.href,
             srclang,