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DRAFT v0.9 03 Feb 2004

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Descriptions about the
CONTENT...

01.00
01.01
01.02
01.03
01.04
03.00
04.00
04.01
04.02
04.03
08.00
08.01
08.02
11.00
13.01
13.02
14.01
14.02
16.01
16.02

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Descriptions related to
INTELLECTUAL PROPERTY...

02.00
02.01
05.00
05.01
06.00
06.01
15.01
15.02
15.03

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Descriptions identifying
a media asset's
INSTANTIATION...

07.01
07.02
07.03
07.04
09.01
09.02
09.03
09.04
09.05
09.06
09.07
09.08
09.09
09.10
09.11
09.12
09.13
09.14
09.15
09.16
09.17
09.18
09.19
09.20
10.00
12.00
12.01
18.00
19.00

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Descriptions beyond
the PBCore Metadata

99.00

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09.17
Format.Duration
COMMENTS FROM RFC

Describe this Element
Show Me Examples
Other Attributes of this Element

Describe this Element


Name

Format.Duration

Definition

Describes the duration in time units for a resource, if that resource has an identifiable, linear start-to-end playback. FORMAT.DURATION does not describe the time required to utilize a resource in a setting (such as a classroom), but is rather a strict playback time, TimeStart to TimeEnd.

Refinements and
Encoding Schemes
 

AES46-2002
http://www.w3.org/TR/NOTE-datetime

SMPTE 12M-1999
Television, Audio and Film – Time and Control Code
http://www.smpte.org/smpte_store/standards/

 


Guidelines for Usage

PBCore recommends flexibility in expressing time stamps. Radio producers often prefer the simple HH:MM:SS designation. Television producers prefer the SMPTE time code standards HH:MM:SS:FF. Some multimedia architectures express time in HH:MM:SS.mmm, where the mmm represents milliseconds.

Consequently, the best practice is to match the time stamp designation to your preferred method:

  • HH:MM:SS
  • HH:MM:SS.mmm
  • HH:MM:SS:FF (SMPTE Timecode nondrop frame-NTSC)
  • HH;MM;SS;FF (SMPTE Timecode drop frame-NTSC)

 


Obligation to Use

Mandatory

Repeatable Element

Apply once

Type of Data Entry

Text String


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Show Me Examples


01:23:45:09 (SMPTE Timecode nondrop frame-NTSC)

01;23;45;09 (SMPTE Timecode dropframe-NTSC)

01:23:45.365 (Milliseconds Timecode)

02:34:35 (HH:MM:SS)

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Other Attributes of this Element


Element Label

Format.Duration

Element Version

PBCore v1.1

Namespace Identifier

Public Broadcasting Metadata Dictionary Project [pending]

Registration Authority

PBMD Project [pending]

Language of the Element

eng


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