safari: keep audio-video order in legacy addStream

suggested here: https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/discuss-webrtc/aUrQ4FJ5Br0/QvlG8WtACQAJ
webrtcHacks · May 31, 2019 · c1da730 · c1da730
1 parent bc33e29
commit c1da730
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/js/safari/safari_shim.js b/src/js/safari/safari_shim.js
@@ -29,7 +29,12 @@ export function shimLocalStreamsAPI(window) {
       if (!this._localStreams.includes(stream)) {
         this._localStreams.push(stream);
       }
-      stream.getTracks().forEach(track => _addTrack.call(this, track, stream));
+      // Try to emulate Chrome's behaviour of adding in audio-video order.
+      // Safari orders by track id.
+      stream.getAudioTracks().forEach(track => _addTrack.call(this, track,
+        stream));
+      stream.getVideoTracks().forEach(track => _addTrack.call(this, track,
+        stream));
     };
 
     window.RTCPeerConnection.prototype.addTrack = function(track, stream) {