videojs: fix startup exception

videojs/http-streaming#1439
Signed-off-by: Varun Patil <[email protected]>

Makefile

@@ -34,6 +34,7 @@ patch-external:
 	patch -p1 -N < patches/scroller-perf.patch || true
 	patch -p1 -N < patches/scroller-sticky.patch || true
 	patch -p1 -N < patches/plyr-wrap.patch || true
+	patch -p1 -N < patches/videojs-vhs-1439.patch || true
 
 watch-js:
 	npm run watch

patches/videojs-vhs-1439.patch

@@ -0,0 +1,13 @@
+--- ./node_modules/video.js/dist/video.es.js	2023-10-27 02:56:03.617235084 -0700
++++ ./node_modules/video.js/dist/video.es.js	2023-10-27 02:55:57.048971664 -0700
+@@ -48232,7 +48232,9 @@
+
+   resetMainLoaderReplaceSegments() {
+     const buffered = this.tech_.buffered();
+-    const bufferedEnd = buffered.end(buffered.length - 1); // Set the replace segments flag to the buffered end, this forces fetchAtBuffer
++    // https://github.com/videojs/http-streaming/pull/1439
++    const bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
++    // Set the replace segments flag to the buffered end, this forces fetchAtBuffer
+     // on the main loader to remain, false after the resetLoader call, until we have
+     // replaced all content buffered ahead of the currentTime.
+

src/components/viewer/PsVideo.ts

@@ -424,6 +424,7 @@ class VideoContentSetup {
     // Changing the quality sometimes throws strange
     // DOMExceptions when initializing; don't let this stop
     // Plyr from being constructed altogether.
+    // https://github.com/videojs/http-streaming/pull/1439
     try {
       const qualityList = content.videojs?.qualityLevels?.();
       if (!qualityList || !content.videojs) return;