# Video freezes in Safari

**URL:** <https://community.wowza.com/t/video-freezes-in-safari/92163>\
**Category:** Wowza Streaming Engine\
**Tags:** webrtc\
**Created:** [October 19, 2020, 1:08pm UTC](https://community.wowza.com/t/video-freezes-in-safari/92163 "2020-10-19T13:08:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Max\_Kalun](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@Max\_Kalun](https://community.wowza.com/u/Max_Kalun)\
**Post date:** [October 19, 2020, 1:08pm UTC](https://community.wowza.com/t/video-freezes-in-safari/92163/1 "2020-10-19T13:08:27Z")

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Hi,

I’ve tested the video publish/playback in Safari using [Wowza examples](https://www.wowza.com/developer/webrtc/dev-view-publish) and found out that video playback freezes after ~30-60 seconds.  
The same glitches occur in the recorded video (using record all incoming streams) so the problem is definitely related to publishing.  
The Activity Monitor shows ~100-150% CPU usage for WebRTC publishing tab.

Does anyone know how to fix it or any workarounds?

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**Author:** ![Amara\_Graham](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/amara_graham/32/381_2.png) [@Amara\_Graham](https://community.wowza.com/u/Amara_Graham)\
**Post date:** [October 19, 2020, 2:47pm UTC](https://community.wowza.com/t/video-freezes-in-safari/92163/2 "2020-10-19T14:47:34Z")

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Hi Max - Welcome to the Wowza community!

What version of Safari and Wowza Streaming Engine are you using?

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**Author:** ![Karel\_Boek](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/karel_boek/32/454_2.png) [@Karel\_Boek](https://community.wowza.com/u/Karel_Boek)\
**Post date:** [October 19, 2020, 7:37pm UTC](https://community.wowza.com/t/video-freezes-in-safari/92163/3 "2020-10-19T19:37:49Z")

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WIth a CPU usage of 100-150%, are you by chance transcoding the stream in Wowza and maybe the server doesn’t have enough power? #justaguess

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**Author:** ![Max\_Kalun](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@Max\_Kalun](https://community.wowza.com/u/Max_Kalun)\
**Post date:** [October 20, 2020, 7:07am UTC](https://community.wowza.com/t/video-freezes-in-safari/92163/4 "2020-10-20T07:07:24Z")

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Safari Version 13.1 (15609.1.20.111.8)  
Wowza Streaming Engine 4 Perpetual Pro Edition 4.8.5 build20200616153358

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<div class="post-metadata">

**Author:** ![Max\_Kalun](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@Max\_Kalun](https://community.wowza.com/u/Max_Kalun)\
**Post date:** [October 20, 2020, 7:27am UTC](https://community.wowza.com/t/video-freezes-in-safari/92163/5 "2020-10-20T07:27:14Z")

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Transcoding is not enabled.  
I just installed wowza and added a keystore, so no additional settings were added.

Wowza server has a normal CPU load. A high CPU load occurs only on the client and only with Safari.

 ![WowzaStatus](https://us1.discourse-cdn.com/flex002/uploads/wowza1/original/1X/40a34ade10ecf637de0fb8e1517e3e0af6547307.png)