WebOS 3.5 is throwing "Failed to execute 'webkitGenerateKeyRequest' on 'HTMLMediaElement': The key system provided ('com.microsoft.playready') is not supported" error.

[subhanahmed047]

Have you read the FAQ and checked for duplicate open issues?
Yes

If the problem is related to FairPlay, have you read the tutorial?

No

What version of Shaka Player are you using?

4.12.4

Can you reproduce the issue with our latest release version?
Yes

Can you reproduce the issue with the latest code from main?
Yes

Are you using the demo app or your own custom app?
Demo App

If custom app, can you reproduce the issue using our demo app?
Yes

What browser and OS are you using?
Chrome 38 on WebOS 3.5 (LG 2017)

For embedded devices (smart TVs, etc.), what model and firmware version are you using?
Software Version: 05.70.35

What are the manifest and license server URIs?

I'm using the Axinom test vectors. You can find the demo as well the URLs here -> https://github.com/subhanahmed047/shaka-player-demo/blob/main/index.js#L1-L8

What configuration are you using? What is the output of player.getNonDefaultConfiguration()?

 player.configure({
        drm: {
            servers: {
                [keySystem]: licenseServerUrl,
            },
        },
        preferredVideoCodecs: ['avc1.640028'],
    })

What did you do?

Simply run the above-mentioned demo.

What did you expect to happen?
I expected to see the playback. The current version I'm running with working playback is v4.7.11.

What actually happened?

I get the following error:

Failed to execute 'webkitGenerateKeyRequest' on 'HTMLMediaElement': The key system provided ('com.microsoft.playready') is not supported.

This exact error has been fixed in the past here -> #6558

However back then the issue would come up as a 4032 error instead of the 6006 error.

Are you planning to send a PR to fix it?
Maybe, I just wanted to raise this issue to see if I can get some pointers.

[tykus160]

@subhanahmed047 tbh it looks like PlayReady is not supported anymore on WebOS, but that would be very surprising. Can you show us a result of shaka.Player.probeSupport()? You can also try to run https://shaka-player-demo.appspot.com/support.html on a TV.

[avelad]

@subhanahmed047 tbh it looks like PlayReady is not supported anymore on WebOS, but that would be very surprising. Can you show us a result of shaka.Player.probeSupport()? You can also try to run https://shaka-player-demo.appspot.com/support.html on a TV.

Where have you seen that it is not supported? According to the webos developers it is supported... https://webostv.developer.lge.com/develop/specifications/streaming-protocol-drm

[tykus160]

@avelad I meant this particular device claims it's not supported, I haven't seen any indication of that on LG documentation. We need to find out is it really not supported sometimes or do we have some issue in our polyfill.

[shaka-bot]

Closing due to inactivity. If this is still an issue for you or if you have further questions, the OP can ask shaka-bot to reopen it by including @shaka-bot reopen in a comment.

[tykus160]

This is another occurrence of #2915 probably caused by introducing Preload Manager

[koenoe]

I can reproduce this on WebOS 3.0 with both Widevine and Playready. I tried debugging it, but looks like there's some EME polyfill missing, but couldn't figure out where exactly. Sorry if this isn't too helpful 😅

[subhanahmed047]

@tykus160 @avelad Apologies for the late response, I was off sick. I just tried running Shaka Player v4.13.4 on webos3 and got the same error as I reported above.

[tykus160]

@subhanahmed047 sad to hear that, as this fix is working for us internally.
Are you able to share verbose logs with us (call shaka.log.setLevel(shaka.log.Level.V2))?

[subhanahmed047]

@tykus160 I just tried the following Widevine-protected HLS stream from Shaka's demo page:
https://storage.googleapis.com/shaka-demo-assets/angel-one-widevine-hls/hls.m3u8
https://cwip-shaka-proxy.appspot.com/no_auth

> shaka.Player.version
v4.13.4-debug

Here are the results (Please ignore my custom logs).

[tykus160]

@subhanahmed047 do you see it only on Widevine now, or on PlayReady as well?

[subhanahmed047]

It's both. I just chose Widevine for the above test. I did try playready too.

[tykus160]

Are you able to look into this? I'm afraid I'm not able to reproduce it now. Probably you'd need to dive into logic I changed before and check what can be adjusted.

[subhanahmed047]

No worries, I'll look at it next week when I'm in front of a WebOS3.