2025-02-11, 07:28 PM
If only the audio is unsupported, the video will be copied unmodified while the audio alone is transcoded. The HDR-ness will remain intact.
In the case of clients that don't support ASS subtitles, that will require the subtitles be burned in, which requires transcoding the video, which means the HDR will be tone mapped to SDR.
In the case of clients that don't support ASS subtitles, that will require the subtitles be burned in, which requires transcoding the video, which means the HDR will be tone mapped to SDR.