Scan Conversion
The video decoder delivers an ITU-R BT.656 YUV422 digital video stream to the data input port of the on-board processor.
Two consecutive fields of the incoming stream are assembled to build a YUV420 planar image frame, that is stored in a temporary buffer the video buffer located into the memory space of the on-board processor.
The video buffer serves as data source for both the video encoder and the video formatter.