HyperFrames v0.8.44

By Steven Van · 2026-09-16

HyperFrames v0.8.44 fixes a sub-composition lint false positive and adds an opt-in locked keyframe interval to its streaming encoder.

HyperFrames v0.8.44 fixes the sub-composition lint false positive from the previous release and adds an opt-in option to the streaming encoder.

The streaming encoder now accepts lockGopForChunkConcat and gopSize, which force a keyframe at a fixed interval so encoded output can be cut and joined without re-encoding. This already existed on the disk encoder and now produces identical FFmpeg arguments on both paths. The flag defaults to off, and an existing render produces the same FFmpeg arguments as before.
The root_dimensions_mismatch lint warning no longer fires for sub-compositions. A sub-composition's own viewport meta and html, body CSS never reach the live rendering document, since the runtime mounts only its matched subtree, so the warning was drift that couldn't clip anything. A top-level mismatch is still reported, and a viewport-meta-only mismatch now gets its own message instead of a clipping warning.

HyperFrames

Open-source framework for rendering HTML compositions into MP4 videos, built for AI agents and automated pipelines.