Translations:Archive:Kdenlive/Manual/Projects and Files/Clips/66/en

Proxy clips are one of the most useful inventions for editing if you are not working on an ultra high-end machine. Even quite well speced PCs can struggle with High Definition footage if proxy clips are not turned on. The trick that the proxy clip feature does is that the original clips are replaced by clips with lower resolution and a less complex codec. Video decoding, e.g. of H.264 clips, requires a lot of computing power and computing power is required for rendering effects in real time. If insufficient power is available, playback will stutter. Proxy clips require hardly any computing power at all, which allows fluent playback.