0115W - Package Duration
v1.0
published
0115W
v1.0
PACKAGE DURATION
Package Duration
SMPTE ST 377-1
Expected Value
Duration, Mismatch
https://qc.ebu.io/items/0115W/versions/1-0-0/
Check
Report
Summary
- EBU QC Id
- 0115W
- Name
- Package Duration
- Status
- published
- Category
- absolute
- Lead editor
- Eric Carson
- Aliases
- ComponentLength Duration
- Tags
- MXF MXF-only
Versions
| Version | Status | Edition date | Saved by | Note |
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Details
- Description
- The package duration in MXF (also called "component length") describes the duration of included packages, like the source package and the material package.
The source package duration includes the value of the "origin" metadata and so may be different to the material package duration, also in operational pattern OP1a, if a precharge exists. - Definition
- Used in Checks, the system shall read out the source package duration and the material package duration indicated in the wrapper metadata and check if they match the expected ones specified in the input.
Optionally, the system may report the package duration values.
Used in Reports, the system shall read out the package durations indicated in the wrapper metadata and report it. - References
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Remark: 9.4.2 The MXF timing Model, B.8 Structural Component
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- Examples
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Input: "Material Package Duration Expected" = 250
Input: "Source Package Duration Expected" = 250
Output: "Check Result" = false
Output: "Material Package Duration" = 250
Output: "Source Package Duration" = 260Remark: Used as a Check.
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Input: -
Output: "Material Package Duration" = 250
Output: "Source Package Duration" = 260Remark: 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
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Remarks
- Remarks
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This QC Test can also be used to detect the presence of precharge.
In case of a "roll-out", the package duration will be shorter than the total duration of the wrapped essence (container duration). To read out the values of container duration for audio/video please use Tests #0009W (Latest version) and #0040W (Latest version) .
Please note, even if this metadata element is optional, according to ST377-1, it shall be treated as a Best Effort Property with a Distinguished Value = -1.
User discussions
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