Five situations, one loupe

I“It stutters in QuickTime, not in VLC”

An important video — a memory, an exhibit, a rush — stutters in QuickTime, iMovie, Final Cut or Premiere, yet seems smooth in VLC. The file is lying about the order of its frames; VLC masks the symptom inside its own player, while the file stays broken everywhere else.

The move: Loupe makes the diagnosis on opening and writes a repaired copy — the same frames, bit-for-bit; only the timing tables are rewritten. The copy is re-verified before it is delivered, and it plays everywhere: it is the file that gets healed, not the display.

IIThe MKV the Mac refuses

A file received from a colleague, an old camera, a recorder: MKV, AVI, FLV — “unsupported format”.

The move: most of the time, it is the wrapper the device refuses, not the picture. Loupe rewraps into MP4 without re-encoding — no loss, the original intact — and when it is genuinely impossible, it names the cause instead of leaving a black screen.

IIIThe slow-motion swing

A coach, a physiotherapist, a serious golfer: the movement filmed on a phone in slow motion, and three questions — the angle of the elbow, the length of the stride, the exact time between plant and impact.

The move: the slate draws marks anchored to the image (they follow the zoom without drifting), the angle is laid down in a single motion, distance is calibrated against a known reference — and the stopwatch reads the true instant of every frame, precisely where phone slow motion, with its irregular frame rate, makes frame-counting tools lie. The analysis exports and can be shared with a colleague; the annotated image goes to the athlete, identical down to the pixel to what the screen showed.

IVThe detail filmed by drone

A roof, a plot of land, an inspection: somewhere in four minutes of flight, a detail a few pixels wide.

The move: the ×16 zoom stays sharp during playback — you follow the detail without stopping the film, step frame by frame around the decisive instant, capture what you see. And for the archive, the HD export — knowing what it is: a reconstruction, which the app announces as such; the evidence itself stays in the zoom.

VDocumenting an exhibit

An insurance assessor, a quality-control inspector, a bailiff in the field: you need to extract the exact frame from a video, annotate it, date it, pass it on — without anything leaving for some cloud or other.

The move: frame-accurate navigation, faithful capture (drawings included), excerpts bounded by markers — and an application that, by construction, has no network access rights at all: the video never leaves the device, and that is not a promise, it is a technical impossibility.