Description:
The essenceTrackDataRate element expresses the amount of data in a digital media file that is encoded, delivered or distributed, for every second of time. Although optimal data rates are often dependent on the codec used to compress and encode a digital file, generally speaking, a larger data rate translates into a better quality playback experience, for example 56 kilobits/second vs. 1 megabit/second.
XPATH LOCATION:
/ pbcoreDescriptionDocument / pbcoreInstantiation / instantiationEssenceTrack / essenceTrackDataRate
USAGE RULES:
Occurs:
1 time or less
May Contain:
2 or less optional attributes, specific:
- unitsOfMeasure ( may be empty)
- annotation ( may be empty)
Contained by:
Contained with:
[Any elements used MUST appear in this relative order]
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackType
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackIdentifier
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackStandard
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackEncoding
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackDataRate
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackFrameRate
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackPlaybackSpeed
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackSamplingRate
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackBitDepth
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackFrameSize
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackAspectRatio
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackTimeStart
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackDuration
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackLanguage
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackAnnotation
- /pbcoreDescriptionDocument/pbcoreInstantiation/instantiationEssenceTrack/essenceTrackExtension
EXAMPLES:
-
<essenceTrackDataRate unitsOfMeasure="Mbit/s">8</essenceTrackDataRate>
-
<essenceTrackDataRate unitsOfMeasure="kbps" annotation="compressed">1700</essenceTrackDataRate>
