Readonlygopgop_size_seconds: seconds between I pictures; 0 is the app's one second.
Readonlymaximummaximum_frame_rate: the most frames per second the output may have, e.g. 30.
Readonlytranscodetranscode_bit_rate_bps: the rate control's target, e.g. 5,400,000.
Readonlytranscodetranscode_dimension: the short side of the encoded picture, e.g. 720.
The server's answer to
upload_settings: what the upload's encode must follow.