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Check levels and broadcast range with FFmpeg signalstats, ffprobe and ffplay
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What this guide covers
For editors and colourists who want per-frame luma and saturation numbers and a visual marker for pixels outside legal broadcast range before delivery. You end with a list of problem frames to fix and re-measure. Based on the FFmpeg manual and its example commands; nothing was run.
More about this guide
Guide ID: art_01M6VK35NNKHQ592VMXMD27QXM
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Guide title
Check levels and broadcast range with FFmpeg signalstats, ffprobe and ffplay
Coverage
For editors and colourists who want per-frame luma and saturation numbers and a visual marker for pixels outside legal broadcast range before delivery. You end with a list of problem frames to fix and re-measure. Based on the FFmpeg manual and its example commands; nothing was run.
Example
A hypothetical clip where some frames report a luma maximum of 255 while the 90th-percentile value stays near 235, read as clipped highlights on a few pixels. Illustrative only.
Useful starting points
- If nothing prints, check the metadata key names against the manual, since they are case-sensitive.
- If no highlight appears in ffplay, make sure the out option is set to the broadcast-range type.
- Values beyond the expected range may simply mean a full-range source; check the range metadata first.
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