Ultra HDR is a true HDR image format, and is backcompatible. libultrahdr is the reference codec for the Ultra HDR format. The codecs that support the format can render the HDR intent of the image on HDR displays; other codecs can still decode and display the SDR intent of the image.
For raw intents with color format rgb1010102 and rgba8888, the input fields are not validated correctly. This is addressed.
Test: ./ultrahdr_unit_test