Core already turns images into a video and writes the file, and handles
containers, codecs and muxing properly. Writing our own would be a worse
copy of tested code, so there is no FunPack save node and no reason for VHS
either.
What core cannot generalise is decoding a latent that is not one tensor: an
AV latent has two branches wanting different VAEs, and their arrangement is
the model's business. Same rule as the empty latent -- a model module may
claim it, and H3 now does. A nested latent nobody claims is refused rather
than handed to vae.decode, which would raise somewhere confusing or quietly
decode one branch as the picture. A missing audio VAE is named, because
returning no audio looks exactly like a model that makes none.
With this the pipeline closes end to end using FunPack's eight nodes and
core's samplers and video nodes -- verified by loading both together. That
matters more than the node count: until now nothing FunPack produced could
be measured, only reasoned about.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>