Workflow Operation Handler


Workflows are the central element to define how a media package is being processed by the Opencast services. Their definitions consist of a list of workflow operations, which basically map a piece of configuration to Opencast code:

<definition xmlns="">
        <configuration key="source-flavors">presentation/trimmed</configuration>
        <configuration key="target-flavor">presentation/tagged</configuration>

Default Workflow Operations

The following table contains the workflow operations that are available in an out-of-the-box Opencast installation:

Operation Handler Description Details
analyze-tracks Analyze tracks in media package Documentation
analyze-audio Analyze first audio stream Documentation
archive Archive the current state of the mediapackage Documentation
cleanup Cleanup the working file repository Documentation
comment Add, resolve or delete a comment Documentation
compose Encode media files using FFmpeg Documentation
composite Compose two videos on one canvas. Documentation
concat Concatenate multiple video tracks into one video track Documentation
copy Copy media package elements to target directory Documentation
cover-image Generate a cover-image containing metadata Documentation
defaults Applies default workflow configuration values Documentation
editor Waiting for user to review, then cut video based on edit-list Documentation
email Sends email notifications at any part of a workflow Documentation
encode Encode media files to differents formats in parallel Documentation
export-wf-properties Export workflow properties Documentation
extract-text Extracting text from presentation segments Documentation
http-notify Notifies an HTTP endpoint about the process of the workflow Documentation
image Extract images from a video using FFmpeg Documentation
image-to-video Create a video track from a source image Documentation
import-wf-properties Import workflow properties Documentation
incident Testing incidents on a dummy job Documentation
ingest-download Download files from external URL for ingest Documentation
inspect Inspect the media (check if it is valid) Documentation
normalize-audio Normalize first audio stream Documentation
partial-import Import partial tracks and process according to a SMIL document Documentation
post-mediapackage Send mediapackage to remote service Documentation
prepare-av Preparing audio and video work versions Documentation
publish-configure Distribute and publish media to the configured publication Documentation
publish-engage Distribute and publish media to the engage player Documentation
retract-configure Retracts media from configured publication Documentation
segment-video Extracting segments from presentation Documentation
segmentpreviews Extract segment images from a video using FFmpeg Documentation
series Apply series to the mediapackage Documentation
silence Silence detection on audio of the mediapackage Documentation
tag Modify the tag sets of media package elements Documentation
theme Make settings of themes available to processing Documentation
waveform Create a waveform image of the audio of the mediapackage Documentation
zip Create zipped archive of the current state of the mediapackage Documentation