Yes with devices implementing fully Camera2, the rule is that you can stream full resolution sensor data to buffers that you can capture and save either for processing (like HDR & superresolution) or video recording :)
At that time, was the viewfinder preview built on full sensor readout or line-skipped/binned sensor readout?
At that time, was the viewfinder preview built on full sensor readout or line-skipped/binned sensor readout?