. When a media player encounters a PlayReady-protected file, it first parses the header to find the Key ID (KID)
The license server verified the client’s certificate and checked: playready drm decrypt
Your application must respect the policies dictated by the license. For example, if the license requires HDCP 2.2 for 4K playback, your code must query the display subsystem to ensure HDCP is active before allowing the DRM engine to decrypt the stream. playready drm decrypt