Sanye Hub

Keyframe Extraction — Tutorial

Upload a video, seek in the fullscreen desk…

Keyframe Extraction: Export JPG at a Timestamp

Features

  • Fullscreen workbench after upload; stage media box fits the video’s real aspect ratio (contain).
  • Local capture: <video> preview + <canvas> JPG output—nothing is uploaded; no native browser controls (bottom Play/Pause).
  • Bottom bar toggles Play / Extract with play/camera icons: paused or in preview → Play; while playing → Extract (pauses video, no auto preview).
  • Toolbar: Reset, speed 0.5×–3.0×, center frame jumps (back 20f/5f/1f and forward 1f/5f/20f), Extract, Download all (ZIP).

Use Cases

  • Grab stills from product demo videos

FAQ

What limitations should I know?

Captures the frame at the current playback time, not automatic shot-change detection.

When might it fail?

Frames live in page memory until you download or reset; refresh clears them.

What else should I watch for?

wmv / mkv / avi work only if the browser can play them.

Any other important notes?

Runs locally in the browser—no server upload.