add SourceBuffer API checks

sheguloves · May 16, 2017 · 6019ef6 · 6019ef6
1 parent a32eabc
commit 6019ef6
Showing 1 changed file with 12 additions and 3 deletions.
diff --git a/src/hls.js b/src/hls.js
@@ -27,9 +27,18 @@ class Hls {
 
   static isSupported() {
     window.MediaSource = window.MediaSource || window.WebKitMediaSource;
-    return (window.MediaSource &&
-            typeof window.MediaSource.isTypeSupported === 'function' &&
-            window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"'));
+    window.SourceBuffer = window.SourceBuffer || window.WebKitSourceBuffer;
+
+    const isTypeSupported = window.MediaSource &&
+      typeof window.MediaSource.isTypeSupported === 'function' &&
+      window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"');
+    const hasSupportedSourceBuffer = window.SourceBuffer && window.SourceBuffer.prototype &&
+      typeof window.SourceBuffer.prototype.appendBuffer === 'function' &&
+      typeof window.SourceBuffer.prototype.remove === 'function';
+    const isSafari = navigator.vendor && navigator.vendor.indexOf('Apple') > -1;
+
+    // safari does not expose SourceBuffer globally so checking SourceBuffer.prototype is impossible
+    return isTypeSupported && (hasSupportedSourceBuffer || isSafari);
   }
 
   static get Events() {