# API Guide(rtstpFilterUnknownTracks check a true)

**URL:** https://community.wowza.com/t/api-guide-rtstpfilterunknowntracks-check-a-true/94669
**Category:** Wowza Streaming Engine
**Tags:** wowza-streaming-server-java-api
**Created:** [March 8, 2022, 5:36am UTC](https://community.wowza.com/t/api-guide-rtstpfilterunknowntracks-check-a-true/94669 "2022-03-08T05:36:52Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![yoon\_kyungsik](https://avatars.discourse-cdn.com/v4/letter/y/b77776/32.png) [@yoon\_kyungsik](https://community.wowza.com/u/yoon_kyungsik)
#### Post date: [March 8, 2022, 5:36am UTC](https://community.wowza.com/t/api-guide-rtstpfilterunknowntracks-check-a-true/94669/1 "2022-03-08T05:36:52Z")

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![API](https://us1.discourse-cdn.com/flex002/uploads/wowza1/original/2X/8/873d98e615c4ad209e6abdf2089b963a90fcba79.png)

hi. i developed the control api(like a register cctv information modify and delete) from my server to wowza streaming engine.

and then, i understand for a media quality i should check at `rtspFilterUnknowTracks’ to true.

so i need a guide to develope that function.