After updating WCS and WEB SDK to Nov 22 versions Safari will not play stream

[Dani]

I've updated both server and client to this version:
client:
0.5.28.2753.124

server:
5.2.409

Everything works great on chrome (both streams are fine)
On Iphone (Xr) OS: 13.2.3
the streams goes out ok (I can see the stream on the other side) but safari shows a frozen image of the first frame and nothing more.

Any idea what is wrong ?
Is there a change in code needed to make this work again ?

 

[Max]

Good day.
Are you using parameter 'autoplay' for Player on iOS?
We have issues with this right now and we raised internal ticket (WCS-2375) and let you know results in this topic.

 

[Dani]

any updates ?

 

[Max]

Good day.
WCS version with this fix is on verification and will be available soon.

 

[Max]

Good day.
We fixed WebRTC autoplay issue in iOS Safari in WebSDK build 0.5.28.2753.132. Please update and check.
Also, please note that autoplay can be started only with muted audio. So, you have to unmute audio after playback is started:

    $("#volumeControl").slider({
        range: "min",
        min: 0,
        max: 100,
        value: currentVolumeValue,
        step: 10,
        animate: true,
        slide: function(event, ui) {
            //WCS-2375. fixed autoplay in ios safari
            stream.unmuteRemoteAudio();
            currentVolumeValue = ui.value;
            stream.setVolume(currentVolumeValue);
        }
    }).slider("disable");

In example above (see Player code on GitHub) we unmute remote audio after volume slider moving.
Note that autoplay does not work in Low Power Mode at all.

 

[Dani]

I have updated but still frozen on latest iphone version.
Do I need to add the unmute code for it to work on iphones ? As old js works good. Just new one frozen.

 

[Max]

Good day.
Is the issue reproduced in Player example with autoplay=true parameter (https://WCS:8444/client2/examples/demo/streaming/player/player.html?streamName=stream&autoplay=true) or in your own code? In last case, please provide us minimal Player code modification to reproduce.

 

[Dani]

This is our own code - it's a chat (web) application - do I need to force autoplay on the new version ?
currently if we detect safari with webrtc we run this:
publishStream.muteAudio();
publishStream.muteVideo();

User needs to unmute using a control.

 

[Max]

Good day.

do I need to force autoplay on the new version ?

To use autoplay, you should start playback with muted audio, then user should unmute with volume control.

I have updated but still frozen on latest iphone version.

We cannot reproduce freeze on autoplay in iOS 13.3 using latest WebSDK. Do you use playFirstVideo function like Player example?

function playBtnClick() {
    if (validateForm()) {
        ...
        if (Flashphoner.getMediaProviders()[0] === "WSPlayer") {
            Flashphoner.playFirstSound();
        } else if (Browser.isSafariWebRTC() || Flashphoner.getMediaProviders()[0] === "MSE") {
            Flashphoner.playFirstVideo(remoteVideo, false, PRELOADER_URL).then(function() {
                start();
            }).catch(function () {
                onStopped();
            });
            return;
        }
        start();
    }
}