A video codec describes how the picture is encoded. A file extension does not tell you everything about the tracks inside it.
The 5.0 places video details in Viewing options → Info. Use Settings → Picture to choose Hardware or Software decoding.
Earlier codec reference
The previous Windows guide listed H.265/HEVC, H.264/AVC, Google VP9 (including their listed 10-bit variants), MPEG-4, MPEG-2, VP8, VC-1/WMV and H.263. This is an earlier reference, not a guarantee of compatibility with every file in 5.0.
The 5.0 player supports HDR10 and HLG, 10-bit and studio 4:2:2 10-bit. Playback depends on the particular file and setup.
Casting and 10-bit HDR are CnX Pro features, with a free trial on every video. Check the app for the options available to you.
