Description
Return duration, maximum-minus-duration and inclusive withinLimit.
Recording and excerpt budgets can encode a supplied duration allowance or credit flag. Remaining seconds and matching metadata cannot establish consent, copyright, cultural permission or the full conditions governing reuse.
Return duration, maximum-minus-duration and inclusive withinLimit.
When to use this tool
Use Authorized Excerpt Duration when you need a duration or credit calculation under explicit supplied permissions metadata.
How to use the tool and how it works
- Enter start, end, authorizedMaximum. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read duration, remaining, withinLimit. Inspect withinLimit before interpreting the associated values.
Require ordered excerpt endpoints and nonnegative authorizedMaximum. Return duration, maximum-minus-duration and inclusive withinLimit.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| start | Start | Required. Finite number. |
| end | End | Required. Finite number. |
| authorizedMaximum | Authorized Maximum | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| duration | Duration | Required. Finite number. |
| remaining | Remaining | Required. Finite number. |
| withinLimit | Within Limit | Required. Boolean. |
{
"input": {
"start": 10,
"end": 25,
"authorizedMaximum": 20
},
"output": {
"duration": 15,
"remaining": 5,
"withinLimit": true
}
}Limitations and assumptions
- Units must match. Duration allowance does not establish actual consent, publication rights, purpose restrictions, revocation or appropriate cultural use.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Verify the actual agreement, performer consent, attribution requirements and intended use with the relevant rights holders. Review purpose, scope, revocation and cultural restrictions beyond duration alone.
References
Similar or alternative tools
- Performer Consent Excerpt Length Budget
Return remaining budget before/after proposal and whether total use stays within the supplied maximum.
- Authorized Recording Credit Share
Sum all credits and authorized credits; divide authorized duration by total recording duration.