[Libav-user] swscale speed

Roger Pack rogerdpack2 at gmail.com
Fri Aug 31 20:17:20 CEST 2012

> In the case of scaling I have also not found a big difference while using
> different interpolations (eg. SWS_BICUBIC vs SWS_POINT) and I think that
> nearest neighbour should be significantly faster. Is there any
> optimalization if only decimating (scaling with factor of 2^n) is performed?

Maybe on your cpu RAM speed is the bottleneck (i.e. cpu is very fast)
so it's able to keep up.
Now compare it with lanczos...

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