You may occasionally see "x264-HDR" listed in file descriptions on forums or review sites like Wccftech . In these cases, the term is usually a or refers to a specific, non-standard workflow:
: Unlike x264, x265 was built with HDR in mind, allowing for the seamless embedding of HDR10 or Dolby Vision metadata. Why "x264-HDR" Might Appear Online x264-hdr
If you are looking to preserve HDR quality, is the industry standard. You may occasionally see "x264-HDR" listed in file
: The video may have been converted from an HDR source to an SDR (Standard Dynamic Range) format using x264, losing the actual HDR benefits but retaining high detail. : The video may have been converted from
: HDR typically requires BT.2020 color primaries. Discussions among experts, such as those on r/ffmpeg , note that x264 lacks the necessary support for these HDR-specific color spaces.
: The file might be a 10-bit H.264 encode. While this provides better color graduation than 8-bit, it is still not "true" HDR and often suffers from poor hardware compatibility. Conclusion