Sony HDW-1800 Manuel d'utilisateur Page 59

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59
7-1 Overview / 7-2 Recording UMIDs
Chapter
Chapter 7 UMID Functions
7
UMID Functions
7-1 Overview
The UMID (Unique Material Identifier) is a type of meta-
data 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.
7-2 Recording UMIDs
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 92.
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 92.
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”.
UMID Basic Instance Number
Material Number
Source Pack Date/Time
Spatial Co-ordinates
Stored Ownership
“Whether the material is
a copy or the original”.
“What device the original
was recorded on”.
“When the material was
recorded”.
“Where the material was
recorded”.
“Who recorded the
material”.
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