How to repair a broken section of a finished video without re-editing it
Give Vizard Agent the list of faulty intervals and say not to rebuild the production. It tiles the defective frames together, checks the correct picture still exists underneath at those times, builds a patch for each window, composites them onto the existing master, and then inspects the first frame after every patch.
What do you type into Vizard Agent?
Say "targeted repair" plainly. A list of nine broken sections reads naturally as a brief for a new version, and that's the one thing you don't want once the rest of the film is approved. Give every interval to the millisecond from the exported file, with the end defined as the first frame where the picture returns.
Prompt
What does Vizard Agent actually do?
A patch on the master you already have can't disturb anything outside the windows it touches. The deciding check Vizard Agent makes is whether good picture exists under each window. If it does, the repair is a compositing job and the rest of the film is safe. In the session behind this article it:
- Worked on a long-form documentary with nine broken title sections, tiling frames from every defective interval to see the fault as a pattern.
- Sampled the underlying footage at the same times, including the presenter under two of the broken cards, to confirm good picture existed.
- Drew the replacement graphic, previewed it on a real frame, built a patch per interval and re-cut the patches with correct seeking when the first pass landed wrong.
- Composited the patches onto the existing master, tiled the first and last frame of every repaired interval, checked the frame just after each, and confirmed every title was readable and unclipped.
- Found the exact frame for a requested hard ending, tried a stream copy first, encoded a hard cut when that wasn't exact, and verified the final duration.
When does this not work well?
A patch needs something correct to patch with. Where the underlying picture is genuinely missing rather than covered, or the fault runs through the whole film rather than sitting in defined windows, a repair is not the cheaper route. Audio faults need the mix, and vague intervals like "somewhere near the middle" can't be patched.
Common questions
Do I have to give exact timecodes? Yes, to the millisecond. Vizard Agent repairs what you can define.
Will the audio be touched? No. Vizard Agent patches picture only unless you ask otherwise.
Why not just re-render the whole thing? A re-render puts every approved decision back at risk. Vizard Agent's patches reach the broken windows directly.