# Teradek Prism to Wowza – Audio but no video
**URL:** https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470
**Category:** Wowza Streaming Engine
**Created:** [September 29, 2022, 6:24pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470 "2022-09-29T18:24:19Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Bryce\_Seifert](https://community.wowza.com/u/Bryce_Seifert)
#### Post date: [September 29, 2022, 6:24pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/1 "2022-09-29T18:24:19Z")
We recently acquired the Teradek Prism encoder, and when streaming to Wowza we get audio but no video.
When streaming to the same Wowza instance with a Teradek Cube, we get video + audio as expected.
We’ve tried this on **4.8.13** and **4.8.20** , with the same result.
Some of the errors we’re seeing are
> ```
> 2022-09-26 11:21:54 CDT comment server WARN 200 -
> TranscoderWorkerVideoDecoder.frameDimensionsValid[_defaultVHost_:remote/_definst_/stream6: decodeIterations:0]:
> videoDecoderDecodeDisplayWidth failed [0:32:8192]: Encodes will not be playable - - - 1.0086778356E7
>
> ```
and
```
ERROR server comment 2022-09-26 15:25:10 - - - - - 1.0101373719E7 -
> - - - - - - - H264Utils.decodeAVCC : java.lang.Exception: Expected to parse
> SPS of length 42 bytes, but 8 bits remained|at com.wowza.wms.media.h264.H264Utils.decodeAVCC(H264Utils.java:463)|at
> com.wowza.wms.media.h264.H264Utils.decodeAVCC(H264Utils.java:398)|at
> com.wowza.wms.media.h264.H264Utils.decodeAVCC(H264Utils.java:99)|at
>
```
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [September 29, 2022, 10:16pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/2 "2022-09-29T22:16:50Z")
> [@Bryce\_Seifert](#):
>
> Teradek Prism
Hmmm… that’s interesting since we do support the Teradek Prism. Can you tell me the following:
1. What is the protocol you are using? RTMP? SRT? MPEG?
2. Are you sending a 4K stream?
3. What version of Java are you using?
I will look for your reply.
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [September 29, 2022, 11:04pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/3 "2022-09-29T23:04:02Z")
Something within the source settings Wowza is not liking. e.g. H.264 profile range compared to frame size and resolution. Please open a support ticket with a screenshot of the Teradek settings (resolution, H.264 profile, video/audio bitrates), stream name in question, if you are transcoding, WSE conf/logs/transcode template/ for support to review).
---
### Author:  [@Bryce\_Seifert](https://community.wowza.com/u/Bryce_Seifert)
#### Post date: [September 30, 2022, 1:19pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/4 "2022-09-30T13:19:08Z")
> [@Rose\_Power-Wowza\_Com](#):
>
> - What is the protocol you are using? RTMP? SRT? MPEG?
> - Are you sending a 4K stream?
> - What version of Java are you using?
- RTMP
- Not 4K. I’ve tried 720 + 1080
- Java Version 9.0.4 Java VM Version 9.0.4+11
---
### Author:  [@Bryce\_Seifert](https://community.wowza.com/u/Bryce_Seifert)
#### Post date: [September 30, 2022, 1:50pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/5 "2022-09-30T13:50:34Z")
These are the full Teradek specs.
---
### Author:  [@Bryce\_Seifert](https://community.wowza.com/u/Bryce_Seifert)
#### Post date: [September 30, 2022, 4:42pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/6 "2022-09-30T16:42:01Z")
And I have submitted a ticket.
---
### Author:  [@PWI\_Team](https://community.wowza.com/u/PWI_Team)
#### Post date: [October 1, 2022, 2:20pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/7 "2022-10-01T14:20:28Z")
Hi,
try to add the below property in Application.xml, Streams/Properties section:
```
fixH264InjectCodecConfig
true
Boolean
```
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [October 3, 2022, 7:13pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/8 "2022-10-03T19:13:03Z")
i think this is the problem, but I see you have a ticket in and it will get assigned today: You need to have a minimum of Java 11 for Engine 4.8.20. I know you mentioned issues in a different version though so tech support will troubleshoot this accurately.
**Java support:** Wowza Streaming Engine 4.8.20 is built on Java 11 ( **OpenJDK Java SE JRE 11.0.2** ), but can be used with Java versions 11 - 12. For more information, see [Manually install and troubleshoot Java on Wowza Streaming Engine](https://www.wowza.com/docs/manually-install-and-troubleshoot-java-on-wowza-streaming-engine).
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [October 3, 2022, 7:14pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/9 "2022-10-03T19:14:26Z")
> [@Bryce\_Seifert](#):
>
> `java.lang.Exception: Expected to parse `
Unfortunately, this error can be thrown for more than one reason which makes it difficult to diagnose in the forums.
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [October 4, 2022, 4:08pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/10 "2022-10-04T16:08:16Z")
If updating your Java doesn’t work Bryce, I see that tech support has sent you some troubleshooting tips in your ticket to see if it’s a problem with your encoder itself connecting to Wowza although we do support that model.
---
### Author:  [@Bryce\_Seifert](https://community.wowza.com/u/Bryce_Seifert)
#### Post date: [October 5, 2022, 3:54pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/11 "2022-10-05T15:54:20Z")
After talking to Teradek and rolling back the firmware a few versions, this seems to be resolved.
So I believe they’re working on a fix, although still not sure what the root cause of the issue is.
---
### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [October 5, 2022, 4:18pm UTC](https://community.wowza.com/t/teradek-prism-to-wowza-audio-but-no-video/95470/12 "2022-10-05T16:18:19Z")
I saw that in the ticket, so glad you brought this to our attention and hope it gets resolved to go back to the newer version of the firmware.