Get a Widevine DEVICE UNIQUE ID by using MediaDrm API in Android (28+)

gistfile1.txt

val WIDEVINE_UUID = UUID(-0x121074568629b532L, -0x5c37d8232ae2de13L)

val wvDrm = try {
    MediaDrm(WIDEVINE_UUID)
} catch (e: UnsupportedSchemeException) {
    //WIDEVINE is not available
    null
}

wvDrm!!.apply {
    val widevineId = wvDrm.getPropertyByteArray(MediaDrm.PROPERTY_DEVICE_UNIQUE_ID)
    val encodedWidevineId = Base64.getEncoder().encodeToString(widevineId).trim()
    Log.d("DRM", "Widevine ID:$encodedWidevineId")
    wvDrm.close()
}

Developers can check a Widevine DRM security level by getting the security property value (from ExoPlayer Test)

private static final String WIDEVINE_SECURITY_LEVEL_1 = "L1";
private static final String WIDEVINE_SECURITY_LEVEL_3 = "L3";
private static final String SECURITY_LEVEL_PROPERTY = "securityLevel";

String securityProperty = mediaDrm.getPropertyString(SECURITY_LEVEL_PROPERTY);