Source Description Packet
{"Image DocumentName": "Source Description Packet", "Image ImageDescription": "Used by source to give more information. 32 bit header followed by zero or more additional information chunks. E.g.: 0 END End of SDES list. 1 CNAME Canonical name. 2 NAME Real user name of source. 3   address.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}