Elements defined


essenceTrackDataRate measures the amount of data used per time interval for encoded data. The data rate can be calculated by dividing the total data size of the track's encoded data by a time unit.

Best Practice: By default use bytes per second. Otherwise, this should be expressed as numerical data, with the units of measure declared in the unitsOfMeasure attribute.

Usage: optional, not repeatable


  • unitsOfMeasure: optional | The unitsOfMeasure attribute defines the unit used in the containing element, e.g. pixels, GB, Mb/s, ips, fps, kHz, inches, lines, dpi. Can be used as an attribute of the following elements - essenceTrackAspectRatio, essenceTrackBitDepth, essenceTrackDataRate, essenceTrackFrameRate, essenceTrackFrameSize, essenceTrackPlaybackSpeed, essenceTrackSamplingRate, instantiationDataRate, instantiationDimensions, instantiationFileSize.
  • source: optional | The source attribute provides the name of the authority used to declare the value of the element. Required attribute for pbcoreIdentifier and instantiationIdentifier elements. Can be used as an attribute of any element.
  • ref: optional | The ref attribute is used to supply a source’s URI for the value of the element. Can be used as an attribute of any element.
  • version: optional | The version attribute identifies any version information about the authority or convention used to express data of this element. Can be used as an attribute of any element.
  • annotation: optional | The annotation attribute includes narrative information intended to clarify the nature of data used in the element. Can be used as an attribute of any element.


This element does not have any subelements.


    <essenceTrackDataRate unitsOfMeasure="kbps" annotation="compressed">1700</essenceTrackDataRate>  
    <essenceTrackDataRate unitsOfMeasure="bit/second" annotation="VBR">10482976</essenceTrackDataRate>