Inspecting Google Widevine DRM security levels (L1 hardware TEE vs L3 software fallback) on Android devices determines HD video streaming capabilities.

Widevine DRM Security Levels

- Widevine L1: Hardware-backed Trusted Execution Environment (TEE) decoding required for 1080p/4K HD streaming. - Widevine L3: Software-based decryption fallback limited to 480p SD resolution streaming.