OK, great. Thanks for the update. The latest workflow definition in the 1.1.x accounts for hold states, so the preview flv encoding is skipped if no hold is selected for that recording. You may want to try going back to the default workflow to see if it meets your needs.
Josh On Tue, Mar 1, 2011 at 11:35 AM, Lovemore Nalube <[email protected]>wrote: > Hi Josh > > I found what the problem was after all. I was messing around with the > 'full' definition workflow and I must have commented out one of the tasks > that the thumbnail generation depends on. I think it was one of the > 'preview' tasks. Reason I commented it out is that we are not using the > 'Hold' feature so there is no need to generate previews and since .flv > compression cannot be multithreaded on ffmpeg the process is just slowing > down the workflow for nothing. > > Is there a way to disable the preview task without losing the thumbnails? > (that's assuming my theory is correct). > > Thanks! > > > -- > Lovemore Nalube > OLE Developer (Vula) > University of Cape Town > http://www.cet.uct.ac.za/LovemoreN > > >>> On 3/1/2011 at 12:08 PM, in message < > [email protected]>, Josh > Holtzman <[email protected]> wrote: > If you execute the ffmpeg command directly, are the images produced as > you would expect? If not, the combination of the media, the ffmpeg version / > compilation options, and the command arguments might be problematic. Please > create a ticket with attached media, your ffmpeg version, and the command > used to generate the problematic images. > > Thanks, > Josh > > > On Fri, Feb 25, 2011 at 3:09 AM, Lovemore Nalube < > [email protected]> wrote: > >> Can someone please advise on how to fix this issue I am having. I have a >> cluster with 2 worker nodes. An uploaded media file goes through the >> workflow fine except for the thumbnails being extracted properly. The logs >> show this (in part): >> ..... >> *2011-02-25 03:48:50 INFO (VideoSegmenter:550) - Found new scene at 656 s >> 2011-02-25 03:48:59 INFO (VideoSegmenter:550) - Found new scene at 674 s >> 2011-02-25 03:48:59 INFO (VideoSegmenter$1:387) - Segmentation of >> file:/data/matterhorn/shared/workspace/collection/composer/cb142704_856e_4674_a870_85f4f0bda447.mov >> yields 34 segments >> 2011-02-25 03:49:00 INFO (VideoSegmenter$1:402) - Finished video >> segmentation of >> file:/data/matterhorn/shared/workspace/collection/composer/cb142704_856e_4674_a870_85f4f0bda447.mov >> *.... >> *and lots of these corresponding lines shortly after the ones above:* >> ----- >> *2011-02-25 03:59:41 INFO (AbstractCmdlineEncoderEngine:164) - Executing >> encoding command: /usr/local/bin/ffmpeg -strict inofficial -y -i >> /data/matterhorn/shared/workspace/mediapackage/b8008970-bf6f-49ac-9f2f-8ae33a2f9d1d/69b392f5-ac87-431a-90a8-9050921b4b55/CE_Screencast.mp4 >> -r 1 -ss 528 -vframes 1 -s 160x120 -f image2 >> /data/matterhorn/shared/workspace/mediapackage/b8008970-bf6f-49ac-9f2f-8ae33a2f9d1d/69b392f5-ac87-431a-90a8-9050921b4b55/CE_Screencast.528.jpg >> >> 2011-02-25 03:59:41 INFO (FFmpegEncoderEngine:144) - major_brand : mp42 >> 2011-02-25 03:59:41 INFO (FFmpegEncoderEngine:144) - minor_version : 1 >> 2011-02-25 03:59:41 INFO (FFmpegEncoderEngine:144) - compatible_brands: >> M4V mp42isom >> 2011-02-25 03:59:41 INFO (FFmpegEncoderEngine:144) - encoder : Lavf52.64.2 >> 2011-02-25 03:59:50 INFO (AbstractCmdlineEncoderEngine:188) - Video track >> CE_Screencast.mp4 successfully encoded using profile 'player-slides.http' >> 2011-02-25 03:59:51 INFO (ComposerServiceImpl$2:438) - creating an image >> using video track track-2 >> *----- >> But in the engage player, there are no thumbnails shown. From the search >> UI to the flash player the thumbnails do not come up instead place holders >> with an empty image tag are show. Here is an example: >> http://media.uct.ac.za/engage/ui/watch.html?id=b8008970-bf6f-49ac-9f2f-8ae33a2f9d1d >> This is the only blocker to us moving to us our new production VMs. >> Please help :) >> Thanks >> -- >> Lovemore Nalube >> OLE Developer (Vula) >> University of Cape Town >> http://www.cet.uct.ac.za/LovemoreN >> >> >> ### >> >> UNIVERSITY OF CAPE TOWN >> >> This e-mail is subject to the UCT ICT policies and e-mail disclaimer >> published on our website at >> http://www.uct.ac.za/about/policies/emaildisclaimer/ or obtainable from >> <%2B27%2021%20650%209111>+27 21 650 9111. This e-mail is intended only >> for the person(s) to whom it is addressed. If the e-mail has reached you in >> error, please notify the author. If you are not the intended recipient of >> the e-mail you may not use, disclose, copy, redirect or print the content. >> If this e-mail is not related to the business of UCT it is sent by the >> sender in the sender's individual capacity. >> >> ### >> >> _______________________________________________ >> Matterhorn mailing list >> [email protected] >> http://lists.opencastproject.org/mailman/listinfo/matterhorn >> >> >> To unsubscribe please email >> [email protected] >> _______________________________________________ >> > > > ### > > UNIVERSITY OF CAPE TOWN > > This e-mail is subject to the UCT ICT policies and e-mail disclaimer > published on our website at > http://www.uct.ac.za/about/policies/emaildisclaimer/ or obtainable from +27 > 21 650 9111. This e-mail is intended only for the person(s) to whom it is > addressed. 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