License persistent state

Web App Development
1

Hello, there.

I’m working on a web-based application which uses DRM playback (DASH/PlayReady and DASH/Widevine) with Shaka-Player.

My application logic requires DRM device id to identify a device across multiple launches. I used this code to check whether license persistent state is supported:

    try {
      const basicConfig = {
        initDataTypes: ['cenc'],
        persistentState: 'required',
        videoCapabilities: basicVideoCapabilities,
      };

      const access = await navigator.requestMediaKeySystemAccess(
        keySystem, [basicConfig as MediaKeySystemConfiguration]
      );

      return access.getConfiguration().persistentState === 'required';
    } catch (e) {
      return false;
    }

It shows that PlayReady supports persistent state but Widevine no.

And here I see quite strange behavior since real results are directly opposite. (with PlayReady I see new device ID on every app start, but with Widevine device ID is the same across multiple launches).

I found this article in webOS documentation: DRM Content Playback | webOS TV Developer

As I understand it describes some webOS specific way of setting up DRM playback and getting license, but Shaka-Player already does it for me on its own.

Is it necessary to rework license getting flow in order to fix the device ID issue?

2

DRM Content Playback guide is for the native player. For questions about Shaka Player, please contact Shaka Player support. Thank you.