# Use Of Variables In Transcoder Templates

**URL:** <https://community.wowza.com/t/use-of-variables-in-transcoder-templates/49359>\
**Category:** Wowza Streaming Engine\
**Tags:** transcoder\
**Created:** [August 4, 2017, 2:56pm UTC](https://community.wowza.com/t/use-of-variables-in-transcoder-templates/49359 "2017-08-04T14:56:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ImAStreamer](https://avatars.discourse-cdn.com/v4/letter/i/9de053/32.png) [@ImAStreamer](https://community.wowza.com/u/ImAStreamer)\
**Post date:** [August 4, 2017, 2:56pm UTC](https://community.wowza.com/t/use-of-variables-in-transcoder-templates/49359/1 "2017-08-04T14:56:09Z")

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In creating a transcoder template, is there a list of what variables are available for use in the template, specificially the streamname tag?

mp4:${SourceStreamName}\_somethinghere

I want to build a new streamname that is a subset of the streamname. Specifically if the source stream name is:

firstpart\_extrastuff

I’d like the template to just use for the streamname:

firstpart

Is that possible?

Thanks!