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http://opencast.jira.com/browse/MH-8397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=28702#comment-28702
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Adam McKenzie commented on MH-8397:
-----------------------------------
The substitution uses freemarker (http://freemarker.sourceforge.net) and the
unique track id so it will look like:
${.vars[\"track-1\"]}
So a full example is:
filesrc location=${.vars[\"track-1\"]} ! decodebin ! filesink
location=${.vars[\"track-2\"]}
> Create gstreamer-runner pipeline
> --------------------------------
>
> Key: MH-8397
> URL: http://opencast.jira.com/browse/MH-8397
> Project: Matterhorn Project
> Issue Type: Sub-Task
> Components: Architecture & Services
> Affects Versions: 1.4
> Reporter: Christopher Brooks
> Assignee: Adam McKenzie
> Priority: Critical
> Fix For: 1.4
>
>
> Create a "gstreamer-runner" pipeline workflow operation. It should take as a
> parameter a string representing a gstreamer command to run. This string
> would be turned into to appropriate gstreamer-java objects when run. The
> pipeline should allow for substitution to media files inside of the gstreamer
> package, something like ${/track-1/myfile.mpg}. Resultant files do not need
> to be added to the media packages (just available to future workflow
> operations. Question: Is this possible? If not lets put it in the media
> package, but delete it afterwards, there is no need for longer term storage
> of the exported files.)
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