0042W - Video Frame Rate
v4.0
published
0042W
v4.0
VIDEO FRAME RATE
Frame Rate Check
SMPTE ST 377, ISO 13181-2, ...
Expected Frame Rate
Frame Rate, Mismatch
https://qc.ebu.io/items/0042W/versions/4-0-0/
Check
Report
Summary
- EBU QC Id
- 0042W
- Name
- Video Frame Rate
- Status
- published
- Category
- absolute
- Lead editor
- Rowan Depomerai
- Aliases
- frame rate framerate sample rate
- Tags
- video MXF
Versions
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Details
- Description
- In MXF the video framerate is represented with the metadata element sample rate which specifies the number of addressable elements of essence data per second.
- Definition
- Used in Checks, the system shall read out the Video Frame Rate indicated in the wrapper metadata and check if it matches the expected Frame Rate specified in the input. Optionally the system may report the read out Video Frame Rate.
Used in Reports, the system shall read out the Video Frame Rate indicated in the wrapper metadata and report it. - References
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Remark: G.2.2 Sample Rate and Edit Rate
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- Examples
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Input: "Video Frame Rate Expected" = 25/1
Output: "Check Result" = true
Output: "Video Frame Rate" = 25/1
Remark: Used as a Check.
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Input: None
Output: "Video Frame Rate" = 25/1Remark: Used as a Report.
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Input parameters
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Output parameters
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Test material
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Remarks
- Remarks
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Can optionally be combined with a scanning method check.
In MXF, this metadata element is called "sample rate" and it is a required metadata element. If the partition status signals open, the search shall be continued until a closed partition is found. If no closed partition is found, the value of the last open partition shall be used.
User discussions
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