# Check if incomming RTSP is online

**URL:** <https://community.wowza.com/t/check-if-incomming-rtsp-is-online/34328>\
**Category:** Wowza Developer Dojo\
**Tags:** wowza-streaming-server-java-api\
**Created:** [July 19, 2016, 6:19am UTC](https://community.wowza.com/t/check-if-incomming-rtsp-is-online/34328 "2016-07-19T06:19:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Marcin\_Wozniak](https://avatars.discourse-cdn.com/v4/letter/m/dc4da7/32.png) [@Marcin\_Wozniak](https://community.wowza.com/u/Marcin_Wozniak)\
**Post date:** [July 19, 2016, 6:19am UTC](https://community.wowza.com/t/check-if-incomming-rtsp-is-online/34328/1 "2016-07-19T06:19:21Z")

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Hi,

I need to create a module that check if incomming RTSP stream from IPCAM is online and if not - to place a loop video placeholder in place.

Any ideas how to start this?

T.

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**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [August 11, 2016, 2:56pm UTC](https://community.wowza.com/t/check-if-incomming-rtsp-is-online/34328/2 "2016-08-11T14:56:51Z")

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Hi,

This functionality is currently available through the [LoopUntilLive](https://www.wowza.com/docs/how-to-loop-a-pre-roll-until-a-live-stream-starts-loopuntillive%28ModuleLoopUntilLive%29) module. If you would like to extend its functionality, you can check the source code available at [GitHub](https://github.com/WowzaMediaSystems/wse-plugin-streampublisher).

Michelle