This is a known problem we've seen previously with ffmpeg.  See 
http://opencast.jira.com/browse/MH-4364 .  Depending on your source media, you 
can try the encoding profile changes described in the ticket.

Josh

On Oct 8, 2011, at 1:10 PM, [email protected] wrote:

> Hi,
> 
> I'm quite desperate: all week long we've been trying to get a 3hours lecture 
> processed, but it never succeeds. It takes forever, and always there was an 
> error short before the ending (various reasons, some I could work around).
> 
> When I look at the logs I notice, that for example the encoding commands of 
> player-slides (there are like 200 in the file), takes longer and longer and 
> longer as time goes by.
> 
> The first slides take like 5 seconds, and then it takes more time, so after 
> like 100 slides it takes 5 minutes to encode the slide.
> 
> I already minimalized the workflow and added threads support to the ffmpeg 
> (-threads 4) (but jpeg isnt a supported codec for that it seems), but this 
> did nothing to the problem.
> 
> I have no anymore what to do and where to begin. Is it possible that the 
> memory leak error is the culprit of this behavior? Is there anything I can do?
> 
> The machine has 6GB of memory, Java Heap Space is set to 2GB, it has 4 cores 
> active.
> 
> Begging for help, Andreas Krieger
> -----------------------
> [email protected]
> 01/58801 DW 41523
> mobil: 0664/60 588 4523
> TU Wien
> DVR-Nummer: 0005886
> -----------------------
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