OpenH264 is a free software library for real-time encoding and decoding of video in the H.264/MPEG-4 AVC format.

If you are seeing "OpenH264" in relation to a video file or software, it refers to a specific technology used to play or create the video.

Result: A 720p rendition that plays flawlessly on devices with only 256 MB RAM, while still preserving the vivid colour palette of the show’s period costumes. The entire pipeline runs on commodity x86 CPUs, thanks to OpenH264’s efficient multi‑threaded implementation.