0242W - Image Alignment Offset
Summary
EBU QC Id
0242W
Name
Image Alignment Offset
Status
published
Category
absolute
Lead editor
Andy QUESTED
Aliases
ImageAlignmentFactor
Tags
video MXF MXF-only
Versions
Version Status Edition date Saved by Note
Details
Description
Specifies number of bytes to align the start of an image with a defined memory boundary.
Definition
Used in Checks, the system shall read out the Image Alignment Offset indicated in the wrapper metadata and check if it matches the expected one specified in the input. Optionally, the system may report the value.

Used in Reports, the system shall read out the Image Alignment Offset indicated in the wrapper metadata and report it.
References
Examples
  • Input: "Image Alignment Offset Expected" = 1
    Output: "Check Result" = false
    Output: "Image Alignment Offset" = N/P

    Remark: Used as a Check Note the value could not be read out, so the tool reports "N/P".


  • Output: "Image Alignment Offset" = 512

    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 deprecated property is provided for compatibility with some formats which may be wrapped by MXF (for example some uncompressed disc formats).

New implementations should use KAG rules and the Image Alignment Offset should be omitted unless backwards compatibility with the existing format requires a value greater than 1.
User discussions
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