Check video files before delivery
Before delivery, PostLumina checks each file for damage, black or frozen picture, flash frames, dropped frames, clipping, dead channels, subtitle timing and more, and judges loudness and format against where it's going — a platform, TV, a master or a podcast. Fixable problems are fixed in one go.
Check these exports against YouTube's spec and tell me what fails.
| File and picture | Damage or truncation, bad frames, black or frozen picture, flash frames, repeated or dropped frames, flicker risk, out-of-range levels, black borders, interlacing |
|---|---|
| Sound and subtitles | Clipping, dropouts, silent or phase-inverted channels; subtitle timing and layout |
| Judged against | Loudness, format and size for a platform, TV in a given country, a master or a podcast |
| Results | Ready to deliver, can be fixed automatically, or needs you; with a report file |
| Not covered | Netflix-style delivery (IMF, dialogue-gated loudness) |
How to do it
- Add the folder of exports to PostLumina as a project. It indexes every file's format, duration and tags.
- Say the sentence to Claude Code or Codex, naming where the files are going: a platform, TV, a master or a podcast.
- Read the results. Fixable problems are fixed in one go, the fixed files land in the project's PostLumina Output folder, and a report file comes with them.
Questions
What does the check look for?
Damaged or truncated files, bad frames, black or frozen picture, flash frames, repeated or dropped frames, flicker risk, out-of-range levels, black borders, interlacing, clipping, dropouts, silent or phase-inverted channels, and subtitle timing and layout.
Does it check Netflix delivery specs?
No. Netflix-style streaming delivery (IMF, dialogue-gated loudness) is not covered. PostLumina judges files for a platform, TV, a master or a podcast.
What happens to the problems it finds?
Each file comes back as ready to deliver, can be fixed automatically, or needs you. Fixable problems are fixed in one go, and you get a report file.
A film your assistant made in code
The same check works on a video your assistant rendered from code. Video made in code shows how the assistant watches the film first, then checks it.