fix: parse base url without manifest url

lib/dash.js

@@ -56,16 +56,12 @@ const combineGetters = (representation, adaptationSet) => {
 };
 
 const parseBaseUrl = (manifestUrl, mpd, period, representation) => {
-  let manifestBaseUrl = mpd.getBaseUrl();
-  if (!manifestBaseUrl) manifestBaseUrl = manifestUrl;
-  else if (!manifestBaseUrl.startsWith('https://'))
-    manifestBaseUrl = new URL(manifestBaseUrl, manifestUrl).toString();
-  const periodBaseUrl = new URL(period.getBaseUrl() || '', manifestBaseUrl).toString();
-  const representationBaseUrl = new URL(
-    representation.getBaseUrl() || '',
-    periodBaseUrl
-  ).toString();
-  return representationBaseUrl;
+  let base = mpd.getBaseUrl();
+  if (!base) base = manifestUrl;
+  else if (!base.startsWith('https://')) base = new URL(base, manifestUrl).toString();
+  if (!!period.getBaseUrl() || !!base) base = new URL(period.getBaseUrl() || '', base).toString();
+  const baseUrl = new URL(representation.getBaseUrl() || '', base).toString();
+  return baseUrl;
 };
 
 const parseContentTypes = (representation) => {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dasha",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "author": "Vitaly Gashkov <[email protected]>",
   "description": "Parser for MPEG-DASH & HLS manifests",
   "license": "AGPL-3.0",