media/upload

Moves one video chunk into the session’s video store; answers the uploadId receipt on every chunk.

Parameters

Type: MediaUploadParams

media/upload params: one chunk of a client-minted upload. All members required.

Field	Type	Stability	Presence	Description
chunkBase64	string		required	This chunk’s bytes; each call’s frame stays in the budget.
chunkCount	integer		required	The upload’s chunk total; positive.
chunkIndex	integer		required	This chunk’s 0-based position.
commandId	string		required	One per call. While the host runs, replaying it with the same params returns the recorded receipt, and reusing it with different params is refused. After a host restart, start over under a new uploadId.
mediaType	string		required	video/mp4 or video/quicktime, matching VideoInput.
sessionId	string		required	The session owning the video store.
totalBytes	integer		required	The assembled byte count; must equal the bytes the chunks deliver.
uploadId	string		required	The client-minted upload id (UUIDv7), sent on every chunk.

Source

schema/msp/experimental/msp.schema.json#/methods/media~2Fupload

{
  "description": "Moves one video chunk into the session's video store; answers the `uploadId` receipt on every chunk.",
  "params": {
    "$ref": "#/$defs/MediaUploadParams"
  },
  "result": {
    "$ref": "#/$defs/MediaUploadResult"
  }
}