Convert obu to phm

Download and install the latest version of Filestar.
Right click on one or more Obu file(s) on your desktop and select Convert with Filestar.
Type convert to phm in the search box.
Press Convert.

What is the difference between .obu and .phm?

Name: AV1 OBU Video Stream; Portable Half Float Map
Extension: .obu; .phm
Format: Binary; Binary
Category: Video; Raster Image
Developer: Laslo Hunhold
Description: An FF file is an image saved in the farbfeld image format. It contains an uncompressed image that can be compressed using a variety of image compression formats.
MIME Type: video/av1; image/x-farbfeld
Sample: sample.obu; sample.phm

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Last updated October 3, 2026