Am 17.05.2013 um 18:36 schrieb Carl Hetherington:

On Fri, 17 May 2013, Carsten Kurz wrote:

Is the J2k compression speed depending on content complexity or target datarate?

Yes, to some extent. Simple frames (with large areas of a single colour, I think) will encode more quickly. Is DVD-o-matic maxing out your CPU successfully?

Yes, with 4 threads on a dual core HT CPU, I get all four 'virtual cores' fully loaded. 3 threads gives slightly lower CPU loading and somewhat lower fps.

I thought j2k encoding speed was more or less independent from content complexity. At least I wouldn't expect a 1:4 speed difference between 'simple' and 'normal' content. But will do more testing while doing this project.

- Carsten