- EBU QC Id
- 0223W
- Name
- Vertical Subsampling
- Status
- published
- Category
- absolute
- Lead editor
- Jens SCHNEEWEISS
- Aliases
- V-Subsampling Vertical Sub Sampling
- Tags
- video MXF MXF-only
Version | Status | Edition date | Saved by | Note |
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- Description
- Specifies the ratio of luminance subsampling to colour difference subsampling (e.g. 4:4:4, 4:2:2, 4:2:0) in the vertical direction.
In MXF this works together with the metadata element "Horizontal Subsampling", see: [EBU QC Test Item 0222W https://ebu.io/qc/items/0222W]. - 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
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SMPTE ST 377-1
Remark: MXF, G.2.28 Vertical Subsampling
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User profiles
Remark: E.g. the ARD-ZDF profiles
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- Examples
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Input: "Subsampling Expected" = 1
Output: "CheckResult" = True
Output: "Vertical Subsampling" = 1
Output: "Vertical Subsampling Text" = 4:4:4 or 4:2:2 or 4:1:1Remark: Used as a Check
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Input: none
Output: "Vertical Subsampling" = 2Remark: Used as a Report
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Name | Default value | Description | Data model name | Unit | Locator |
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Name | Alias | Description | Data model name | Unit | Locator |
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Title | Version | Download |
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- Remarks
- This item is a Read Out only and includes no Measurement.
Title | Author | Last update |
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