| 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 |
|
|
|
Describe
this Element