Using 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

 

Instance

 

Material Number

 

Time/Date

 

Spatial

 

Country

 

Org

 

User

 

 

 

 

 

No.

 

 

 

Coordinates

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

ID generated when

Instance No. shooting

Same as the above

Original material: 00 00 00

Copied material: Generation number (1 byte) + random number (2 bytes)

Source Pack Shooting information (when, where and who) Same as the above

Appendix

Distinguishing between

Material source ID/

Metadata pack that

the original material and

detecting material

identifies the source of

copied material

 

material unit by defining

 

 

the when, where and who

 

 

of the material unit with

 

 

which it is associated.

Using the Extended UMID

For details, see “Additional information related to the

You have to enter a country code, organization code and

UMID” on page 172.

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

Functions of UMID data

table, and set the organization code and user code

independently.

The UMID data enables the following:

Using UMID Data 171