B Roll Shot List Seconds per Scene Standard Lookup

Audit actual scene B-roll intervals using union coverage without double-counting overlaps, exposing uncovered gaps; no invented standard shot lengths, visual shot suitability, rights clearance or automatic scene segmentation.

Description

Scene coverage is the union of B-roll intervals.

Scene coverage is the union of B-roll intervals. Overlapping shots cannot add the same covered second twice.^[1]

Enter positive scene duration and possibly empty start/end pairs0≤start≤end≤duration. Sort/merge and return union seconds, uncovered gaps and fraction; more than 128 gaps fails.

When to use B Roll Shot List Seconds per Scene Standard Lookup

Use B Roll Shot List Seconds per Scene Standard Lookup when you need to evaluate the supplied records under the calculation and evidence rules below. No shot length standard, scene segmentation, visual suitability or rights clearance is supplied.

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.

How to use B Roll Shot List Seconds per Scene Standard Lookup and understand its results

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
Enter sceneDurationSeconds, bRollCoverageIntervalsSeconds using the field table and calculation rules, then run the tool.
Read unionCoveredSceneSeconds, uncoveredSceneIntervalsSeconds, sceneCoverageFraction. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
sceneDurationSeconds	Scene duration seconds	number	Required
bRollCoverageIntervalsSeconds	B roll coverage intervals seconds	list of list of number	Required

Enter positive scene duration and possibly empty start/end pairs0≤start≤end≤duration. Sort/merge and return union seconds, uncovered gaps and fraction; more than 128 gaps fails.

coverage=length(union(intervals)); fraction=coverage/sceneDuration

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
unionCoveredSceneSeconds	Union covered scene seconds	number
uncoveredSceneIntervalsSeconds	Uncovered scene intervals seconds	list of list of number
sceneCoverageFraction	Scene coverage fraction	number

json

{
  "input": {
    "sceneDurationSeconds": 20,
    "bRollCoverageIntervalsSeconds": [
      [
        0,
        10
      ],
      [
        5,
        15
      ]
    ]
  },
  "output": {
    "unionCoveredSceneSeconds": 15,
    "uncoveredSceneIntervalsSeconds": [
      [
        15,
        20
      ]
    ],
    "sceneCoverageFraction": 0.75
  }
}

Limitations and assumptions

No shot length standard, scene segmentation, visual suitability or rights clearance is supplied.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Matrices are limited to 128 rows and 128 entries per row. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use TV Package Natsot Break Interval Guideline Lookup: Uninterrupted track intervals include package opening and closing tails. Declared break starts are treated as zero-duration boundaries. For a complementary task, use B Roll Archive Footage License Window Lookup: Footage-use screening depends on an explicit date window and licensed media list. Its evidence scope is narrower than a full rights review.

References

B Roll Shot List Seconds per Scene Standard Lookup — tool.io

Similar or alternative tools

TV Package Natsot Break Interval Guideline Lookup
Uninterrupted track intervals include package opening and closing tails. Declared break starts are treated as zero-duration boundaries.
B Roll Archive Footage License Window Lookup
Footage-use screening depends on an explicit date window and licensed media list. Its evidence scope is narrower than a full rights review.