preferredVideoHdrLevel property
string The preferred HDR level of the video. If possible, this will cause the player to filter to assets that either have that HDR level, or no HDR level at all. Can be 'SDR', 'PQ', 'HLG', 'AUTO' for auto-detect, or '' for no preference. Defaults to 'AUTO'. Note that one some platforms, such as Chrome, attempting to play PQ content may cause problems.
Implementation
external String preferredVideoHdrLevel;