0219W - Black Ref Level
v2.0
published
0219W
v2.0
BLACK REF LEVEL
Black Reference Level
User Profile
Meets Requirements
Expected/Unexpected Values
https://qc.ebu.io/items/0219W/versions/2-0-0/
Check
Report
Summary
- EBU QC Id
- 0219W
- Name
- Black Ref Level
- Status
- published
- Category
- absolute
- Lead editor
- Jens SCHNEEWEISS
- Aliases
- Black Reference Level
- Tags
- video MXF MXF-only
Versions
Version | Status | Edition date | Saved by | Note |
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Details
- Description
- Specifies the digital luminance level associated with black.
- Definition
- Used in Checks, the system shall read out the black level 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 black level value indicated in the wrapper metadata and report it. - References
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Remark: MXF G.2.32 Black Ref Level
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Remark: Such as the ARD-ZDF profile
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- Examples
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Input: "Black Ref Level Expected" = 16
Output: "Check Result" = false
Output: "Black Ref Level" = 64Remark: Used as a Check
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Output: "Black Ref Level" = 64
Remark: Used as a Report
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Input parameters
Name | Default value | Description | Data model name | Unit | Locator |
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Output parameters
Name | Alias | Description | Data model name | Unit | Locator |
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Test material
Title | Version | Download |
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Remarks
- Remarks
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This card is a Read Out only and includes no Measurement. For the Measurement version, see EBU QC Test Item 0051B.
Examples:
For 8-bit ITU-R BT.601-7, the value is 16.
For 10-bit ITU-R BT.601-7, the value is 64.
User discussions
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