Show HN: A Video Editor SDK for Web Based on WASM and WebCodecs

Interesting tool. But looking at the code when you load a video it simply decodes all frames into memory. If you deal with 1080p footage at 30 fps you will hit 4 GB with just ~23 seconds of video.

Sadly, videos can't be larger than that. For one there's a memory limit per browser tab. Secondly, wasm32 is not able to address more than 4 GB of memory.

Editing feature length movies is certainly out of scope for this editor. It's meant for editing short 10-30 second video clips that are well within the limits of 2 GB. We keep compressed video in memory and only deal with a few decompressed frames at a time.

We avoid H264 patents by not shipping an H264 encoder/decoder. We leverage the browser's WebCodecs API which in turn uses the platform's native codec API. It's the OS and the hardware vendors that license H264 patents because they're the ones providing the H264 implementation.

Well... https://caniuse.com/webcodecs

looks like you could do this via API. Not sure though, it's not in the UI and according to the company it's on the roadmap.

Thanks for your interest, currently not but keyframing is on the roadmap for next year!