videogen.Request gains LastImage alongside InitImage, so one Request covers
t2v, i2v and FL2V without a mode flag. With InitImage it pins both ends of the
clip; alone it pins the destination and lets the backend invent the approach.
The llamaswap provider sends it as a SEPARATE `input_reference_last` part
rather than a second `input_reference`. Multipart permits repeated names, but
then which frame is first and which is last depends on part ORDER — an
ordering contract invisible in the payload, that nothing notices breaking. A
backend that does not know the new name ignores the part, the same degradation
as any other unknown field.
Both parts go through one writeImagePart helper so their encoding cannot
drift, and an empty LastImage is rejected up front exactly as InitImage
already is.
Support is per-model and deliberately NOT advertised in this contract: a
backend that ignores a trailing keyframe returns an ordinary clip, which is
indistinguishable from success. The doc comment says so, because a caller that
needs to know whether the pin took effect has to establish that out of band —
and the mort side gates on a convar for exactly this reason.
Motivated by mort's #1567 (long-form video): with both ends pinned, drift
becomes structurally bounded inside each shot instead of compounding across an
autoregressive chain.
Tests break-checked: sending the last frame under the shared name fails both
the distinct-name assertion and the last-alone case.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01PLjgrxvHjm1sJgUu9zBPH9
- SubmitChain rejects NaN/±Inf segment seconds with ErrUnsupported
(previously an obscure json.Marshal error; NaN fails every comparison
and +Inf passed the >= 0 check).
- ChainStatus skips segment entries with no usable id — JSON null
(which no-op-unmarshals into a string, previously appending ""),
empty strings, and id-less objects; the unfiltered list survives in
Raw. ChainJob.SegmentIDs doc now also says ChainSegmentResult takes
the segment index, not an id string.
- jobPath rejects '%' in job ids — %2F/%2E%2E percent-escapes decode
back into path structure server-side, bypassing the literal check on
this upstream-echoed value.
- singleVideoResult moves to video.go next to videoMIME, and the two
remaining hand-rolled copies of the video-result validation
(videoModel.Generate, Interpolate) now use it — one validation, one
message shape.
- videogen.LipSyncer renamed to videogen.Lipsyncer for consistency with
the rest of the surface's Lipsync* naming (LipsyncProvider,
LipsyncModel, LipsyncRequest); not yet consumed downstream, so the
rename is free now and never again.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01WWCQcYStWXBYUy5sZWnbLT
New videogen/ contract package (ADR-0019): Request/Result/Model/Provider
with the imagegen conventions. Text-to-video and image-to-video are one
surface (Request.InitImage, nil = t2v) since hybrid checkpoints like
Wan 2.2 TI2V serve both from one model; Result carries a single clip.
provider/llamaswap gains VideoModel(id) targeting the blocking
POST {base}/v1/videos/sync (multipart, model-routed by the fork's new
video routes): vLLM-Omni parameter names, OpenAI-style input_reference
file part, optional fields stay off the wire so per-model launch-flag
defaults apply. CLAUDE.md package map picks up audio/ (missed in #12)
and videogen/.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01AXQxVhXBw8PwFAtsVrXSmj
steveandClaude Opus 5