Video Frame API.

A video frame interface turns a timing request into an image or a set of images. The visible operation may look simple, but the result depends on the source container, codec, orientation, and presentation timing. A timestamp request also needs a selection rule: the nearest available frame, the frame displayed at that moment, and a decoder's seek result are not automatically identical. Record what the system actually selected so an editor or analyst can return to the same scene.

These articles help connect extraction choices to the intended output, whether that is a thumbnail, storyboard, dataset, or model input. Pay particular attention to sampling intervals, variable timing, and the image quality required by the next stage. The video frame topic guide brings those decisions together. Before scaling a job, compare a few requested times with the source playback and verify that the exported stills preserve the intended content and orientation.