# Artifacts on WebRTC playback

**URL:** <https://community.wowza.com/t/artifacts-on-webrtc-playback/50249>\
**Category:** Wowza Streaming Engine\
**Created:** [November 27, 2017, 5:55pm UTC](https://community.wowza.com/t/artifacts-on-webrtc-playback/50249 "2017-11-27T17:55:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Cody\_Uptain2](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Cody\_Uptain2](https://community.wowza.com/u/Cody_Uptain2)\
**Post date:** [November 27, 2017, 5:55pm UTC](https://community.wowza.com/t/artifacts-on-webrtc-playback/50249/1 "2017-11-27T17:55:01Z")

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I am seeing green artifacts occasionally when playing back a webrtc stream (in h264 and also in VP8). This only occurs if the stream being pushed is also via WebRTC.

If I use an RTMP stream and playback with h264 in WebRTC it looks great.

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**Author:** ![Andrew\_Ramberg](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Andrew\_Ramberg](https://community.wowza.com/u/Andrew_Ramberg)\
**Post date:** [November 27, 2017, 9:06pm UTC](https://community.wowza.com/t/artifacts-on-webrtc-playback/50249/2 "2017-11-27T21:06:07Z")

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Hello,

Are you using UDP or TCP with your IceCandidate? You may want to try using TCP.

Best regards,  
Andrew

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**Author:** ![Cody\_Uptain2](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Cody\_Uptain2](https://community.wowza.com/u/Cody_Uptain2)\
**Post date:** [November 27, 2017, 10:42pm UTC](https://community.wowza.com/t/artifacts-on-webrtc-playback/50249/3 "2017-11-27T22:42:29Z")

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Unfortunately, that isn’t an option for me due to the 400kbps bitrate limit. My scenario involves decently high quality streams. The playback is great when encoding with OBS and playing back with WebRTC.