0220W - White Ref Level
Summary
EBU QC Id
0220W
Name
White Ref Level
Status
published
Category
absolute
Lead editor
Jens SCHNEEWEISS
Aliases
White Reference Level
Tags
video MXF MXF-only
Versions
Version Status Edition date Saved by Note
Details
Description
Specifies the digital luminance value associated with white.
Definition
Used in Checks, the system shall read out the value 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 value indicated in the wrapper metadata and report it.
References
Examples
  • Input: "White Ref Level Expected" = 235
    Output: "Check Result" = false
    Output: "White Ref Level" = 940

    Remark: Used as a Check


  • Output: "White Ref Level" = 940

    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
Examples:
For ITU-R BT.601, 8-bit video, the value is 235;
For ITU-R BT.601-7, 10-bit video, the value is 940.

This card is a Read Out only and includes no Measurement. For the Measurement version, see EBU QC Test Item 0051B.
User discussions
Title Author Last update