Do not use Fetch API when requesting partial segments

Author: dsilhavy

src/dash/DashHandler.js

@@ -166,6 +166,7 @@ function DashHandler(config) {
         request.mediaType = getType();
         request.bandwidth = representation.bandwidth;
         request.type = HTTPRequest.MEDIA_SEGMENT_TYPE;
+        request.isPartialSegmentRequest = segment.isPartialSegment;
         request.range = segment.mediaRange;
         request.startTime = segment.presentationStartTime;
         request.mediaStartTime = segment.mediaStartTime;

src/dash/vo/Segment.js

@@ -42,6 +42,7 @@ class Segment {
         // The index of the segment in the list of segments. We start at 0
         this.index = null;
         this.indexRange = null;
+        this.isPartialSegment = false;
         this.media = null;
         this.mediaRange = null;
         this.mediaUrl = null;

src/streaming/net/HTTPLoader.js

@@ -557,7 +557,7 @@ function HTTPLoader(cfg) {
         let loader;
         let fileLoaderType;
 
-        if (request.hasOwnProperty('availabilityTimeComplete') && request.availabilityTimeComplete === false && window.fetch && request.responseType === 'arraybuffer' && request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {
+        if (!request.isPartialSegmentRequest && request.hasOwnProperty('availabilityTimeComplete') && request.availabilityTimeComplete === false && window.fetch && request.responseType === 'arraybuffer' && request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {
             if (!fetchLoader) {
                 fetchLoader = FetchLoader(context).create();
                 fetchLoader.setConfig({

src/streaming/vo/FragmentRequest.js

@@ -48,6 +48,7 @@ class FragmentRequest {
         this.endDate = null;
         this.firstByteDate = null;
         this.index = NaN;
+        this.isPartialSegmentRequest = false;
         this.mediaStartTime = NaN;
         this.mediaType = null;
         this.range = null;