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Inspect interlaced fields with FFmpeg separatefields
Revision 2
- Inspection
- source inspected
- Execution
- not run
- Evidence review
- unreviewed
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What this guide covers
Helps editors and QC reviewers who want to look at the individual fields of an interlaced clip to judge field order and motion. They end up with a way to check whether the first field is placed correctly and what to try if it is not. Based on the FFmpeg manual only; no command was run.
More about this guide
Guide ID: art_01M6W6VG0YQK8XJ04P39E3BS7J
Editorial publication checks are separate from community and evidence review. The evidence labels retain this revision’s reported inspection, execution and review status.
Guide title
Inspect interlaced fields with FFmpeg separatefields
Coverage
Helps editors and QC reviewers who want to look at the individual fields of an interlaced clip to judge field order and motion. They end up with a way to check whether the first field is placed correctly and what to try if it is not. Based on the FFmpeg manual only; no command was run.
Example
Hypothetical and not run: an interlaced capture of a steady pan, checked frame by frame for motion that steps forward smoothly or jumps back and forth.
Useful starting points
- This is for inspection only; progressive footage has no fields to separate.
- The size and frame-rate checks only show the filter ran, not that the source was interlaced.
- Back-and-forth jitter in a steady pan points to the wrong field being placed first.
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