Sony HDWD1800 Operation Manual - Page 60
UMID Functions
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UMID Functions 7 Chapter Chapter 7 UMID Functions 7-1 Overview 7-2 Recording UMIDs The UMID (Unique Material Identifier) is a type of metadata in video and audio materials. It has been internationally standardized in SMPTE Standard 330M. This unit supports recording and output of UMIDs. The UMID is made up of a section called the "Basic" and a section called the "Source Pack". The Basic section contains information such as the device that recorded the material and whether the material is the original or a copy. The Source Pack section contains information about when/ where/who recorded the material. A UMID with a Basic section only is called a "Basic UMID". A UMID with both Basic and Source Pack sections is called an "Extended UMID". The following figure shows a general overview of the information contained in a UMID. UMID Basic Instance Number "Whether the material is a copy or the original". Material Number "What device the original was recorded on". Source Pack Date/Time "When the material was recorded". Spatial Co-ordinates "Where the material was recorded". Stored Ownership "Who recorded the material". UMIDs can be recorded when recording video signals with this unit. You can select whether to inherit (copy) the UMID contained in input signals, or automatically or forcibly generate a new UMID. To select the type of UMID to record Select whether to record a Basic UMID or an Extended UMID by using setup menu item 655 "UMID RECORDING". For more information about setup menu item 655, see page 93. To select whether to inherit or generate the UMID When recording a UMID, you can select whether to inherit (copy) the UMID contained in input signals, or generate a new UMID. Make this selection by using setup menu item 656 "MATERIAL NO.". For more information about setup menu item 656, see page 93. To select the Instance Number generation method when inheriting UMIDs If you select to inherit the UMID contained in input signals, almost all information in the UMID is copied without change, but the Instance Number changes to a value which indicates that "this UMID is a copy". The new value can be generated from a 16-bit pseudo-random number with the addition of the number of copies (1 byte), or it can be generated from a 24-bit pseudo-random number. Select the method used to generate the Instance Number by using setup menu item 654 "UMID GENERATE METHOD". 60 7-1 Overview / 7-2 Recording UMIDs