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0151W - KAG Size
published
0151W v2.0
Item image
KAG SIZE
KLV Alignement Grid
D10, RDD-9, User Profiles
Meets Requirements
Size, Position, Mismatch
https://qc.ebu.io/items/0151W/versions/2-0-0/
Check
Report
Summary
EBU QC Id
0151W
Name
KAG Size
Status
published
Category
absolute
Lead editor
Jens SCHNEEWEISS
Aliases
KAG KLV alignment grid key alignment grid grid size KAG Size
Tags
MXF MXF-only
Versions
Version Status Edition date Saved by Note
Details
Description
A KAG is used to align certain KLV elements to specific byte boundaries. In MXF, this is achieved by the insertion of KLV Fill items which ensure that the desired KLV elements are aligned. The KAGSize defines the size of the KLV Alignment Grid (KAG) for this Partition, in bytes.
Definition
Used in Checks, the system shall read out the KAG Size from the wrapper partition pack metadata and check it against the expected KAG Size. Optionally it may report the KAG Size value.

Used in Reports, the system shall read out the KAG Size from the wrapper partition pack metadata and report it.
References

  • SMPTE ST 377-1

    Remark: MXF, Table 5 – Partition Pack

  • SMPTE ST 386

    Remark: Mapping Type D-10 Essence Data for the MXF Generic Container

  • SMPTE RDD 9

    Remark: MXF Interoperability Specification for Sony MPEG Long GOP Products

Examples

  • Input: "KAG Size Expected" = 512
    Output: "Check Result" = false
    Output: "KAG Size" = 1

    Remark: Used as a Check

  • Input: None
    Output: "KAG Size" = 1

    Remark: Used as a Report

Input parameters
Name Default value Description Data model name Unit Locator
Output parameters
Name Alias Description Data model name Unit Locator
Test material
Title Version Download
Remarks
Remarks
This Test performs a read-out only and includes no measurement.

For measurements please use EBU QC Test Item 0169W.
User discussions
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