convert media
Re-encode a video to H.264 in place, same item and url, so browsers and the cloud renderer can play it. Uploads never convert on their own: ProRes, MKV and similar show needs_convert in get_items until converted. HEVC plays as is in the cloud renderer and most browsers. Returns a job with its place in line. A file kept only on a computer plays there as it is. Cloud processing.
Authorizations
An API key (es_live_…) from Settings, under API keys, or an OAuth access token.
Headers
Retry a paid dispatch safely: the same key returns the job already dispatched instead of charging again.
The workspace this one call acts in, when it is not the key's own.

