Supported Environments

The streaming type specified in the platform support tables below is based on the case of serving DASH and HLS contents for each platform separately. For information on platforms that can be supported by CMAF single content, please refer to the relevant item at the end.

The supported client OS and version information are based on the following content specifications:

• Video/Audio codecs: AVC (H.264) + AAC
• Streaming format and encryption mode: DASH + AES CTR (PlayReady, Widevine), HLS + AES CBCS (FairPlay)

DRM support for content outside of the above specifications (e.g. HEVC codec or CMAF CBCS encryption) depends on the client device model, please contact the device manufacturer for accurate and up-to-date information.

To ensure security when playing DRM content, it is recommended to use the latest version of web browser. In most cases, DRM playback is only supported up to the last three major versions. (Exceptions may exist for each browser.)

Widevine’s revocation policy for older versions of CDM is updated irregularly, approximately once per year. These updates are confidential and require a license agreement with Google Widevine to share the information prior to the time of implementation. For this reason, we communicate updates to our customers via this document and release announcements after the policy has been applied.

If you want to receive the information in advance, please contact Widevine team for the agreement.

Web browser apps for iOS/iPadOS that are listed in the App Store are all developed based on the Webkit engine by Apple policy. Therefore, iOS/iPadOS versions of third-party browser apps such as Chrome, Edge, Firefox, etc. are internally identical to the Safari browser and therefore support FairPlay Streaming DRM, unlike their desktop counterparts. (Widevine and PlayReady are not supported.)

Whether PlayReady and Widevine DRM support hardware-level security is determined by the client device’s support for it (e.g., Widevine L3 Android devices cannot play content with Widevine L1 security policy).

Certain codecs or encryption algorithms may not be supported in some exceptional client devices. (e.g., AES128-CBCS algorithm not supported on older SmartTV models)

Also, even in client environments where unencrypted content is played, the same codecs may not be supported when DRM is applied. For this reason, we recommend the use of AVC (baseline or main profile) video codec and AAC audio codec for maximum device compatibility.

For PlayReady, applying software DRM (SL150, SL2000) to CMAF single content encrypted with the CBCS method requires a Windows 10 version 1607 or later client environment.

To apply hardware DRM (SL3000) to the same content, specific CPU/GPU hardware with PlayReady client 4.0 or later is required in addition to the above Windows version requirements. Generally, products released after 2018 have PlayReady client 4.0 or later, but there may be exceptions depending on the manufacturer and product.