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7-3-10Using UMID Data

To perform operations from interviewing to editing effectively and to detect audio-visual materials easily when reusing them, metadata that provides additional information is recorded along with audio-visual data on a disc. As one of application of metadata, the UMID (Unique Material Identifier) is internationally standardized.

What is a UMID?

The UMID (Unique Material Identifier) is a unique identifier for audio-visual material defined by the SMPTE330M-2003 standard.

The UMID may be used either as the 32-byte Basic UMID or as the extended UMID, which includes an additional 32 bytes of Source Pack to make a total 64 bytes.

For details, refer to SMPTE 330M.

 

 

 

 

 

 

 

 

 

 

 

Extended UMID (64 bytes)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Basic UMID (32 bytes)

 

 

 

 

Source Pack (32 bytes)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Universal label

 

L

 

Inst. No.

 

Material Number

 

Time/Date

 

 

 

Spatial

 

Country

 

Org

 

 

User

 

 

 

 

 

 

 

 

Co-ordinates

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 bytes

 

1

 

3 bytes

 

 

16 bytes

 

8 bytes

 

 

12 bytes

 

4 bytes

 

4 bytes

 

4 bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Globally unique ID is automatically recorded every

 

The Extended UMID is metadata that provides additional

shooting.

 

 

 

 

 

 

 

 

 

 

information such as location, time/date, company and so

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The UMID is applied as follows.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Material No.

 

 

 

 

 

Source Pack

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Shooting information (when,

 

 

 

 

 

 

 

 

 

Instance No.

 

 

ID generated when shooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

where and who)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Same as the above

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Same as the above

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Original material: 00 00 00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copied material: generation number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1 byte) + random number (2 byte)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

M

 

 

 

 

M

 

 

 

 

 

 

 

 

 

Distinguishing between the

 

 

Material source ID/detecting

 

 

Metadata pack that identifies

 

 

 

 

 

 

 

 

original material and copied

 

 

material

 

 

 

 

 

the source of material unit by

 

 

 

 

 

 

 

 

material

 

 

 

 

 

 

 

 

 

 

 

 

 

 

defining the when, where

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and who of the material unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

with which it is associated.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using the Extended UMID

 

 

 

 

 

 

 

 

table, and set the organization code and user code

You have to enter a country code, organization code and

 

independently.

 

 

 

 

 

 

 

 

 

user code. Set the country code referring to the ISO-3166

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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