[FFmpeg-user] speeding up filter complex

Carl Eugen Hoyos cehoyos at ag.or.at
Sun Jun 29 13:48:30 CEST 2014

Bouke (VideoToolShed <bouke <at> videotoolshed.com> writes:

> > Did you test if the bottleneck is the scale or the overlay
> > filter?
> Yeah, i did, Bottleneck is definitly the overlay.
> When i input pre-scaled files and omit the scaling in the 
> overlay routine, it's only about 10% faster.

What about the speed if you don't overlay but only scale 
the input streams (and decode three of them with -f null)?

Carl Eugen

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