Register a DoubaoVideo asset adapter that forwards the Ark-compatible
asset API (POST /api/v1/volcengine/asset?Action=xx) to the official
/openApi/portrait endpoint with a Volcengine V4 HMAC-SHA256 signature
(canonical request over content-type/host/x-content-sha256/x-date,
date/cn-beijing/ark/request scope). The AK/SK pair and optional
project code are stored in channel_asset_credentials (pool_id holds
the project code), so asset credentials stay separate from the video
Bearer key; the channel form now accepts them for type 54.
DoubaoVideo joins the seedance asset family so a user's asset upload
channel and video task channel stay the same (asset:// references
pass through to the upstream). Both resolution chains (asset proxy
resolver and video asset family matcher) now require the asset
credential to be configured before a type-54 channel can serve,
bind, or be auto-matched for assets, falling through to compatible
channels otherwise. The /api/v3 native-path whitelist simplifies
back to the family list now that 54 is a member.
Verified end-to-end against the real upstream: CreateAssetGroup,
CreateAsset (real video upload, Processing -> Active moderation),
ListAssets/GetAsset, and a video generation task referencing the
asset via asset://video reference (succeeded, 432900 tokens).
Co-Authored-By: ZCode <noreply@anthropic.com>
The native /api/v3/contents/generations/tasks route was restricted to
the seedance asset channel family (58/60/61); official Volcengine Ark
channels (DoubaoVideo, type 54) could only be reached via the
standardized /v1/video/generations path. Allow type 54 on the native
route in both the distributor and the task retry channel selection,
while keeping it out of the seedance asset binding system.
The taskdoubao adaptor now reuses a pre-parsed task request from the
context (native path) instead of re-parsing the body as TaskSubmitReq,
whose prompt validation would reject the Volcengine-native format.
When req.Prompt is empty (native path), content text items from
metadata are preserved instead of being replaced with an empty prompt;
the standardized path behavior (prompt replaces metadata text) is
unchanged and covered by existing tests.
Co-Authored-By: ZCode <noreply@anthropic.com>
fengsilin