Execute Many Workflow Operation

This operation handler filters a set of MediaPackageElements that match certain input conditions and runs a command on each of them.

To run a command only once for the whole mediapackage, use the Execute Once operation.

Commands run by this operation handler must first be included in the commands.allowed list in the Execute Service configuration.

Parameter table

All parameters are empty by default if not specified. The special parameters #in and #out are described in Execute Service: Parameter Substitution

Configuration keys Example Description Required?
exec qtfaststart The command to run Yes
params -f -t 15 #{in} #{out} The arguments to the command. This string allows some placeholders for input and output MediaPackage elements (see Parameter Substitution) Yes
load 1.5 A floating point estimate of the load imposed on the node by this job No
source-flavor presentation/source Run the command for any MediaPackage elements with this flavor. Elements must also match the source-tags condition, if present No
source-tag rss, trim, -engage Run the command for any MediaPackage elements with one of these (comma- separated) tags. If any of them starts with '-', MediaPackage elements containing this tag will be excluded. Elements must also match the source-flavor condition, if present No
output-filename outfile.mp4 Specifies the name of the file created by the command (if any), without path information. Used as the last part of the #{out} parameter No
expected-type Track Specifies the type of MediaPackage element produced by the command: Manifest, Timeline, Track, Catalog, Attachment, Publication, Other Required if output- filename is present
target-flavor presentation/processed Specifies the flavor of the resulting Mediapackage element created by the command Required if output- filename is present
target-tags execservice, -trim List of tags that will be applied to the resulting Mediapackage element. Tags starting with "-" will be deleted from the element instead, if present. The resulting element may be the same as the input element No

Operation Example

  description="Run command">
    <configuration key="exec">qt-faststart</configuration>
    <configuration key="params">-f #{in} #{out}</configuration>
    <configuration key="source-flavor">*/toprocess</configuration>
    <configuration key="source-tags">copy, -rss</configuration>
    <configuration key="output-filename">result.avi</configuration>
    <configuration key="target-flavor">output/processed</configuration>
    <configuration key="target-tags">copied, -copy</configuration>
    <configuration key="expected-type">Track</configuration>