  Current developments in video encoding technology lead to continuously
improving compression performance but at the expense of increasingly higher
computational demands. Regarding the online video traffic increases during the
last years and the concomitant need for video encoding, encoder complexity
control mechanisms are required to restrict the processing time to a sufficient
extent in order to find a reasonable trade-off between performance and
complexity. We present a complexity control mechanism in SVT-AV1 by using
speed-adaptive preset switching to comply with the remaining time budget. This
method enables encoding with a user-defined time constraint within the complete
preset range with an average precision of 8.9 \% without introducing any
additional latencies.
