Comment by repelsteeltje

> To me, HDR feels like the system is ignoring my screen brightness settings.

You might be on to something there. Technically, HDR is mostly about profile signaling and therefore about interop. To support it in mpeg dash or hls media you need to make sure certain codec attributes are mentioned in the xml or m3u8 but the actual media payload stays the same.

Any bit or Bob being misconfigured or misinterpreted in the streaming pipeline will result in problems ranging from slightly suboptimal experience to nothing works.

Besides HDR, "spatial audio" formats like Dolby Atmos are notorious for interop isuues